From October 30 to November 2, 2019, the 18th China International Coal Mining Technology Exchange and Equipment Exhibition was held in Beijing China International Exhibition Center (New Hall). 640 manufacturers from 19 countries and regions including China, the United States, Canada, Germany, the United Kingdom, Poland, and Australia participated in the exhibition. The exhibition area exceeded 70,000 square meters, and the number of visitors is expected to exceed 100,000. Vice Chairman of the Standing Committee of the Eleventh National People's Congress ***, former Vice Minister of the Ministry of Coal Industry and former Chairman of the China Coal Industry Association Wang Xianzheng, Secretary of the Party Committee of the China Coal Industry Association Liang Jiakun, former Vice Ministers of the Coal Industry Zhang Baoming, Pu Hongjiu, the State Gui Laibao, Deputy Director of Coal Mine Safety Supervision Bureau, leader of China Coal Industry Association, comrades of National Development and Reform Commission, relevant bureaus of National Energy Administration, and large coal enterprises, coal machine equipment manufacturing enterprises, Australia, Czech Republic, Germany, India, Indonesia , Poland, Russia, the United States, Britain and other embassy officials and representatives of the national pavilion attended the opening ceremony. In the 70 years since the founding of New China, the coal industry has adhered to reform, opening up, and innovative development. The industrial foundation has been continuously improved, the level of the industrial chain has been continuously improved, and the quality of development has been significantly improved. New well-building technologies are constantly emerging, green mining technologies are widely promoted, and the efficiency of coal mining and coal resource utilization has been greatly improved. Large-scale fully mechanized mining technical equipment with an annual output of 10 million tons and coal mining machines and hydraulic supports with a height of 8.8 meters and 20 million tons of transport aircraft and 7 million tons of large-scale hydraulic excavator open-pit mining technical equipment have all been localized. Coal science and technology has realized the transformation from "following" to "parallel running" and "leading" in some fields. With the continuous deepening of the structural reforms on the coal supply side and the continuous optimization of the coal industry structure, the production methods of coal mines have gradually shifted to mechanized, automated, informatized, intelligent and clean modernized large-scale production, the production efficiency of raw coal has been greatly improved, and safe production is stable The situation improved and the new format accelerated. The industry has initially formed a pattern of integrated and coordinated development of diverse industries such as coal, electricity, coal chemical industry, building materials, new energy, modern logistics, e-commerce, and financial services. The theme of this exhibition is "Intelligent, Efficient, Green Development", which focuses on the new technologies, new processes, new materials, new products, new equipment brought by the advancement of coal technology in recent years, especially the intelligent production technology equipment of coal mines. New highlights of this exhibition. China International Coal Mining Technology Exchange and Equipment Exhibition was founded in 1980 (after 1987, it was changed every two years) and has now been successfully held for 17 sessions. After the reform of government agencies in 1998, the China Coal Industry Association undertook the exhibition work originally sponsored by the industry management department. As the pace of China's reform and opening up has accelerated, the scale of the exhibition has continued to expand, and the number of exhibitors and visitors has continued to increase. Since the fifteenth exhibition, the exhibition area has mostly exceeded 80,000 square meters, and the number of visitors has exceeded 100,000. It has become an important platform for cooperation and exchange between the coal mining industry event in Asia and the international coal industry.

On the occasion of the National Day , all employees of Luoyang Yuanjian Mining Equipment Co., Ltd wish the motherland prosperity and the people happiness and well-being !

Spend a good month and full moon, the Mid-Autumn Festival is coming!To welcome the Mid-Autumn Festival,September 11, 2019,Luoyang Vision for all employeesMid-Autumn Festival gifts! ! !Luoyang Yuanjian Mine Equipment Co., Ltd.I also wish everyone in advanceHappiness, reunion, health and success!And wish a happy Mid-Autumn Festival! ! A lot of Mid-Autumn Festival gifts,That scene is quite spectacular! Come take a lookFour sets of Mid-Autumn gifts:Mooncake-essential for Mid-Autumn Festival;Herbal tea-grab the tail of summer;Xiaomi-a good tonic body;Edible oil-a necessity of life. Luoyang foresighted all employees,Receive Mid-Autumn Festival gifts in batches,That scene is as lively as a Chinese New Year!The moment I received the gift,There is a smile that cannot be concealed,Don't be so happy!Luoyang foresight employee welfare is good!These words tell the vision of farsighted people!The company pays special attention to the vital interests of employees,Starting from the management,Learn 6S site management,Amoeba business philosophy,Concerned about employee health and safety,Protect employee benefits and treatment,Create a good working environment for employees.Luoyang Vision was established in 1996,With 23 years of mechanical manufacturing experience,***Production of accessories for scraper and transfer machine for mining,Determined to be the trump card of the coal machine industry!

September 3, 2019,American machinery manufacturing experts visitedLuoyang Yuanjian Mine Equipment Co., Ltd.Visit, inspect and guide! Under the guidance of Luoyang's visionary leadership,American experts visited the machining workshop, casting workshop and mold workshop successively.Seriously inquire about the equipment, technology and talents of our factory,Prepare for further guidance to the factory. American experts communicate with the leaders of our factory to exchange the experience and technology of American factory production process. Luoyang Yuanjian Mine Equipment Co., Ltd.Founded in 1996,23 years coal machine manufacturing expert,Determined to be the trump card of the coal machine industry! The company keeps learning advanced management methods,Introduced 6S site management,Organize and learn the business model of Amoeba,Improve the management level of the management team. American experts visited and inspected and guided the work,For the future development of Luoyang's vision,For improving the company's product quality, technical level, etc.All have very important meaning and value!

August 6, 2019, China Coal Workers Association released the 2019 Chinese coal companies and coal production 50 50. Among the top 50 coal companies, National Energy Investment Group, Shandong Energy Group, Shaanxi Coal Industry Chemical Group Ranked in the top three respectively. Among the top 50 coal producers, National Energy Investment Group, China Media Energy Group, Yankuang Group Co., Ltd. Ranked in the top three respectively.

On the morning of August 2nd, Shaanxi Coal Group Xi'an Heavy Equipment Xi'an Coal Mining Machinery Co., Ltd. and National Energy Group Shendong Coal Group Co., Ltd. jointly developed independent intellectual property rights 8.8 meters super large mining height intelligent coal mining machine factory evaluation council and conference in West Coal Machinery Company was held. At the meeting, the expert review committee organized by China Coal Industry Association listened to the technical report of the project team and reviewed the relevant technical documents. After questioning, defending and discussing by the experts at the meeting, it was agreed that the world ’s first 8.8-meter ultra-large mining height intelligent coal mining machine independently developed by West Coal Machinery Company was the first in China to meet the mining needs of the 8.8-meter large mining height face. Agree Through factory evaluation, underground industrial tests are conducted. The expert review committee read out the comments of the world's first self-developed 8.8-meter ultra-large mining height intelligent coal shearer: the project has conducted in-depth research on the key technologies such as the reliability and intelligence of the ultra-large mining height shearer, and has independently developed The world's first 8.8-meter ultra-large mining height intelligent shearer with an installed power of 3030KW. It has functions such as memory cutting, automatic height adjustment, three-dimensional positioning, working surface navigation, remote monitoring, etc., which improves the intelligence level of the shearer. The successful development of the world's first self-developed 8.8-meter ultra-large mining height intelligent coal shearer "is a major breakthrough in the technology innovation of the coal mining machinery of the West Coal Machinery Company, and has important guiding significance and experience support for the domestic mining equipment industry. This Technical innovation has broken through the technical difficulties in the development of the domestic super-large mining coal machine, and realized the high-yield and efficient mining of extra-thick coal seams, which has an important role in promoting the core competitiveness of China's coal equipment manufacturing.

　　On the 5th,according to the official website of the State Coal Mine Safety Supervision Bureau,the company notified four recent major coal mine accidents. 　　Recently,there have been four large coal mine accidents in Sichuan,Guizhou,Hebei and other places,causing a total of 21 deaths.The impact is bad,the lessons are profound,and the coal mine safety production situation is grim.In order to draw lessons from accidents,to curb the trend of coal mine accidents,and to effectively strengthen coal mine safety production,the relevant situation is now reported as follows: 　　1.Basic situation of four major accidents 　　(1)"7·28"large gas explosion accident in Houxin Coal Industry Co.,Ltd.,Wangcang County,Guangyuan City,Sichuan Province. 　　On July 28,2019,a gas explosion occurred in Houxin Coal Industry Co.,Ltd.,Wangcang County,Guangyuan City,Sichuan Province,causing 3 deaths and 2 injuries.The mine is a private enterprise with an approved production capacity of 90,000 tons per year and is a low-gas mine. 　　According to preliminary analysis,the main ventilation system of the mine is not well ventilated due to collapse of the roadway.Local coal fans are used for the ventilation of the roadway coal mining face.Gas is accumulated in the breezeless operation.Detonate 2#to accumulate gas in the upper part of standing eye.The main problems exposed by the accident were as follows:First,the mine was shut down on June 12 due to hidden dangers such as the collapse of the safety exit on the working face and multiple repairs in the return air lane.Suspended,but the mine was illegally produced in the name of maintenance and rectification of the working face.The second is to adopt the“lane-type coal mining”process that is expressly prohibited by the state.The ventilation management is chaotic,and a local fan is used to supply air to the three eyelets at the same time.The third is that no safety monitoring facilities have been installed at the accident face,and operation procedures and safety technical measures have not been prepared.Fourth,the gas inspection and blasting management were chaotic.The systems of"one shot and three inspections"and"three-person chain blasting"were not implemented.The personnel were not evacuated to a safe place when firing.Fifth,the mine was suspected of concealing or late reporting accidents and blindly organized rescue operations. 　　(2)"7·29"large coal and gas outburst accident at Longwo Coal Mine,Guizhou Zheshang Mining Group Co.,Ltd.,Xiuwen County,Guiyang City,Guizhou Province. 　　On July 29,2019,a coal and gas outburst accident occurred in the Longwo Coal Mine of Guizhou Zheshang Mining Group Co.,Ltd.,Liuguang Town,Xiuwen County,Guiyang City,Guizhou Province,causing 4 deaths and 2 injuries.After the accident,the mine concealed the accident and later verified it by the people's report.The mine is a private enterprise with an approved production capacity of 150,000 tons per year.It is located in a coal and gas outburst mine area.The gas grade identification result is a low gas mine,and it is identified that there is no danger of coal and gas outburst in the area above+977.3 meters. 　　According to preliminary analysis,the mine arranged illegally to arrange coal production in the Dongxiashan coal mining face outside the scope of outburst risk identification.No anti-outburst measures were taken.The coal shearer cut coal to induce coal and gas outburst.The main problems exposed by the accident are:First,the coal mining face is illegally arranged and is suspected of ultra-deep cross-border mining.The production was illegally organized in such a way that the concealed area was not pictured,the construction was temporarily sealed,the physical records of entry and exit wells were recorded,and the personnel in the concealed area did not carry the position detection identification card.The second is to fail to carry out the prevention of coal and gas outbursts as required.The coal mining face is arranged outside the scope of outburst hazard identification,and the gas parameters have not been measured,nor any anti-outburst measures have been taken.The third is that the accident working surface has not prepared operating procedures,installed no safety monitoring equipment,and has no self-rescue facilities for compressed air.Fourth,the ventilation management is chaotic,the ventilation facilities are unqualified,and the air volume at the coal mining face in the eastward mountain is insufficient.Fifth,they deliberately concealed the accident.After the accident,they did not report the accident to the relevant departments and transferred the corpses.When the relevant government departments received the masses to report to the mine for verification,they lied to the accident site and sealed the accident area,and organized related personnel to confess. 　　(3)"7·31"large gas explosion accident in Dashu Coal Mine,Guizhou New Southwest Mining Co.,Ltd.,Liangyan Town,Qixingguan District,Bijie City,Guizhou Province. 　　On July 31,2019,a gas explosion occurred in Dashu Coal Mine,Guizhou New Southwest Mining Co.,Ltd.,Liangyan Town,Qixingguan District,Bijie City,Guizhou Province,causing 7 deaths and 1 injury.The mine is a private enterprise with an approved production capacity of 150,000 tons/year.It is a low-gas mine.In 2015,it obtained approval for a merger and reorganization of 450,000 tons/year. 　　According to preliminary analysis,the 17301 coal mining face of the mine was flooded due to water inflow in the transportation lane,and the full negative pressure ventilation system of the working face was blocked.On the working face,gas accumulates in the roadway,and the gas explosion caused by the fire source.The main problems exposed by the accident are:First,illegal operation,continuous heavy rainfall led to increased water inrush in the transportation lane of the 17301 coal mining face of the mine,and the mine failed to take timely water damage prevention measures,causing the face and some system roadways to be flooded.Instead of fully organizing drainage,local fans were used to supply air to the return air lane,and construction of the uphill digging face in the return air lane was undertaken to mine coal illegally.The second is that the management of ventilation gas is not in place,the safety monitoring system is not running,the operator does not carry a portable methane detection alarm,and takes risks without checking the gas.The third is blind rescue.After the accident,the coal mine enterprise failed to report to the relevant departments in time,and the mine chief and chief engineer organized the rescue themselves,which almost caused a secondary accident.Fourth,the mine has been organizing production in the name of a 150,000-ton/year production mine since obtaining the approval of 450,000-ton/year merger and reorganization in 2015,and has not actually carried out merger and reorganization related work.Fifth,the higher-level coal mine company is an attached shell company,and has not actually held a controlling stake in its affiliated coal mine,and has not effectively supervised and managed the coal mine. 　　(4)Hebei Province Kailuan Group Tangshan Mining Company"8·2"large impact ground pressure accident. 　　On August 2,2019,a rockburst accident occurred in Tangshan Mining Company,Kailuan Group,Hebei Province,killing 7 people.The mine's approved production capacity is 4.2 million tons per year,which is a high-gas,rock burst mine. 　　According to preliminary analysis,rock burst occurred in the F5010 liaison roadway(mining depth of nearly 800 meters)in the coal pillar area ofthe mine,causing the roof of the roadway and the surrounding two roadways to fall.The detailed cause of the accident is for further investigation. 　　The above-mentioned 4 accidents once again reflected that some regions and enterprises could not stick to the red line awareness,and were driven by interests to take risks.The heads of enterprises risked organizing illegal productions,resulting in accidents.It also reflected the impact of ground pressure,coal and gas outbursts,and water damage.Major safety risks.

Shanxi Province has always been a major coal province, The coal mine in Shanxi can also be said to be Thousands of mountains and fields! However, more coal mines also means more risks. Coal mine safety has also risen.   　　According to statistics,from January to May 2019, 　　Shanxi ordered the suspension of production and rectification of 82 coal mines according to law! 　　According to data provided by the Emergency Management Department of Shanxi Province. 　　As of the end of May,there were 988 coal mines(wells)in Shanxi. 　　From January to May,Shanxi provincial coal mine supervision departments at all levels 　　A total of 2167 mine times were inspected in the coal mine, 　　A total of 32612 general hidden dangers were found, 　　99 major hidden dangers. 　　Ordered to stop production and rectify 82 coal mines according to law, 　　Ordered to stop using 5 devices, 　　Ordered 30 local operations to stop, 　　The fine was 60.98 million yuan.   　　Among them,the inspection team of the Emergency Management Department of Shanxi Province 　　A total of 74 coal mines were inspected, 　　In accordance with the law,it ordered the suspension of production and the rectification of 41 coal mines. 　　In May alone, 　　Shanxi Province Coal Mine Supervision Department 　　In total,428 coal mines were inspected, 　　Investigate 8441 general hidden dangers and 33 major hidden dangers. 　　Order to stop using one device, 　　Ordered to stop mining operations at 16 working faces, 　　Ordered to stop production and rectify 29 coal mines, 　　A fine of 24.92 million yuan was imposed,and 12 violations were investigated and punished. 　　5 person-times of accountability for enterprise management personnel. 　　Among the various mines inspected, 　　Newly built,reconstructed and expanded mines accounted for 32.7%, 　　Coal and gas outburst,high gas,rock burst, 　　The hydrogeological conditions are extremely complex,the number of people who go into a single shift is large, 　　Six types of high-risk coal mines with depths exceeding 800 meters account for 25.7%. 　　The inspection of coal mine safety is very necessary, 　　Because the safety of coal mines is related to the majority 　　The safety of the coal miners'lives. 　　Although coal mines are an important national energy source, 　　But it also requires safety as a prerequisite, 　　The lives of the workers cannot be used as the price. 　　To ensure the safety of coal mines is to ensure the safety of workers, 　　The state should continue to increase safety inspections of coal mines, 　　Create a good and safe environment for coal miners!

The development of the coal industry can be said to be full of stamina and great potential. After all, China is a large coal production and consumption country, and coal has long been the mainstay of China's energy. In 2018, China's coal development is also closely related to the world, as can be seen from the following data: Coal production According to the data from the 2019 BP World Energy Statistics Yearbook, the world coal production in 2018 was 8.01 billion tons, up 4.0% from the previous year. Prior to this, world coal output exceeded 8 billion tons for three consecutive years in 2012-2014, and world coal output fell to less than 8 billion tons in 2015-2017. By 2018, it again rose to more than 8 billion tons. In 2018, China's coal production accounted for 46.0% of the world's total output, an increase of 0.4 percentage points from the previous year. There are 10 countries with an output of more than 100 million tons, sorted by quantity, China, India, the United States, Indonesia, Australia, Russia, South Africa, Germany, Poland and Kazakhstan. Coal consumption In 2018, global coal consumption was 3.772 billion tons of oil equivalent, up 1.4% from the previous year. Among them, China accounted for 50.5% of the world's total coal consumption, an increase of 4.1 percentage points from the previous year; the top ten countries in consumption are China, India, the United States, Japan, South Korea, Russia, South Africa, Germany, Indonesia and Poland. Coal production capacity According to China Power News, China's coal industry has achieved significant results in overcapacity reduction, which has contributed to a significant increase in capacity utilization. According to statistical data, the capacity utilization rate of China's coal mining and washing industry was 59.5% in 2016, the capacity utilization rate of China's coal mining and washing industry was 68.2% in 2017, and the capacity utilization rate of coal mining and washing industry was 70.6 in 2018. %. Other energy natural gas 　　The growth of energy consumption is driven by the growth of natural gas,which has contributed more than 40%of growth. 　　Natural gas consumption has increased by 195 billion cubic meters,or 5.3%,one of the fastest growth rates since 1984. 　　The increase in natural gas consumption was mainly driven by the United States(78 billion cubic meters),supported by China(43 billion cubic meters),Russia(23 billion cubic meters)and Iran(16 billion cubic meters). 　　oil 　　The average oil consumption increased by more than 1.4 million barrels per day,or 1.5%.China(680,000 bpd)and the United States(500,000 bpd)are the biggest contributors to growth. 　　Global oil production has increased by 2.2 million barrels per day.Almost all of the net growth has come from US manufacturing.Its production growth(2.2 million barrels per day)has set a world record. 　　Renewable energy,hydropower and nuclear energy 　　Renewable energy increased by 14.5%year-on-year,slightly higher than the historical average,although its increase(71 million tons of oil equivalent)is close to 2017(a record-breaking increase). 　　Solar power generation increased by 30 million tons of oil equivalent,slightly lower than the growth of wind power(32 million tons of oil equivalent),and provided more than 40%growth in renewable energy. 　　China has once again become the largest contributor to renewable energy growth(32 million tons of oil equivalent),surpassing the growth of the entire OECD(26 million tons of oil equivalent). 　　Hydropower generation increased by more than 3.1%year-on-year(more than the average growth rate).Nuclear power generation increased by 2.4%year-on-year,the fastest growth since 2010.

Since the introduction of 6S site management,Luoyang Yuanjian Mine Equipment Co., Ltd.From workshop to team, from team to employee,Fully launch and implement 6S management,Strive for excellence, focus on production, and reshape the vision and new image!Among them, the workshop team morning meeting is an important part.Today, come and appreciateLuoyang foresight style workshop team meeting style! "Something to say, don't put the whole useless" Luoyang Yuanjian Workshop Team MeetingIt starts regularly at 7:40 every morning.The whole morning will last 15-20 minutes,Everyone lined up neatly and uniformly dressed,Energetic, serious and lively. Workshop director, team leader,Sales representatives and factory employees together,Explore and solve the problems encountered in the workProduction and management issues. The keynote is not to avoid taboos, what to say,So that different people can fully express their opinions,Communicate, communicate and solve practical problems.With a view to improving production efficiency and product quality,Effectively improve the level of on-site management. "It's all dry goods, hard work" The workshop team morning meeting was presided over by the workshop director,The team leader, sales representative and factory employees spoke in turn. The workshop director Gao Jianjian,Mainly from the perspective of strengthening 6S management,Encourage everyone to improve their self-management level,Strictly abide by the company's 6S management system requirements. From the executive level, the team leaderEncourage all employees to do "cleaning" and "cleaning" on site,Clean the workshop and clean up the garbage in time.At the same time enhance team awareness and collective honor,Also remind everyone that the weather is hot,Pay attention to the combination of work and rest to prevent heat stroke. Sales representatives revolve around the relationship between sales and production,I hope that the workshop will complete the production tasks on time,At the same time guarantee the quality of the product,To ensure that customer requirements are met and timely delivery.Factory employees put forward specific work problems and suggestions,It is resolved by the workshop director and the team leader through consultation. "With 6S management as the focus, lean improvement" Before implementing 6S management,The workshop team morning meeting is not held every day,The communication between employees is limited.After full start of 6S on-site management,Employees from logistics, sales, casting, processing,Can get together for a morning meeting,Not only has employee communication been greatly strengthened,It is also more conducive to the development of work. 6S management also makes everyone moreRecognizing its own shortcomings and shortcomings,Only by facing these shortcomings can we face the difficulties,Targeted solutions. In the future enterprise competition,Not just a contest of hard power in equipment, technology and quality,More is the competition of soft power including management and culture!The purpose of 6S management and lean improvement,It lies in enhancing the comprehensive competitiveness of the enterprise.Because it is the top priority of work. Day after day, year after year.Adhere to the workshop team morning meeting,There will be huge changes!After all, improvement is endless, and it is a matter of a lifetime.

June 3,2019, China Coal Machinery Industry Association Released the newest 2018 List of the top 50 enterprises in the coal machine industry! As you can see from the list, A company with 10 billion sales revenue, 4 companies with sales revenue of more than 5 billion, 23 enterprises with sales revenue of over 1 billion yuan. China Coal Machinery Industry 201 8 year 50 companies list Rank Company Name Coal machine product sales Revenue ( ten thousand yuan) 1 Tiandi Technology Co., Ltd. 1235058 2 Shandong Energy Heavy Equipment Manufacturing Group Co., Ltd. 890462 3 China Coal Mining Machinery Equipment Co., Ltd. 869875 4 Pingmei Shenma Machinery Equipment Group Co., Ltd. 620728 5 Zhengzhou Coal Mining Machinery Group Co., Ltd. 616991 6 China Coal Zhangjiakou Coal Mine Machinery Co., Ltd. 318186 7 Yankuang Donghua Heavy Industry Co., Ltd. 288504 8 Shanxi Jinmei Coal Group Jinding Coal Mining Co., Ltd. 261623 9 Sany Heavy Equipment Co., Ltd. 259018 10 Taiyuan Heavy Machinery Group Coal Machinery Co., Ltd. 247656 11 Yangquan Coal Industry Group Huayue Machinery Co., Ltd. 240424 12 China Coal Beijing Coal Mine Machinery Co., Ltd. 224352 13 Ningxia Dibenniu Industrial Group Co., Ltd. 223551 14 Xi'an Heavy Industry Equipment Manufacturing Group Co., Ltd. 205003 15 Jizhong Energy Machinery Equipment Group Co., Ltd. 186104 16 Yangquan Huayue Machinery Co., Ltd. 167669 17 Shanxi Tiandi Coal Machinery Equipment Co., Ltd. 165850 18 Shandong Mining Machinery Group Co., Ltd. 151643 19 China Coal Machinery Group Co., Ltd. 148156 20 Shandong Taian Coal Mining Machinery Co., Ltd. 144620 twenty one Anhui Mining Electromechanical Equipment Co., Ltd. 143916 twenty two Anhui Shengyun Heavy Industry Machinery Co., Ltd. 139732 twenty three Shandong Tiansheng Machinery Equipment Co., Ltd. 130916 Tiandi Technology Co.,Ltd. With annual sales revenue of 12.35058 billion yuan Once again topped the list! (The 2017 ranking is the top) It is also the largest company in the list with tens of billions of sales revenue. The ladder phenomenon of different companies is very obvious. Tiandi Technology's enterprises with annual revenues of 10 billion yuan ranked***; The second to fifth places become the second ladder, All are enterprises with more than 5 billion sales revenue, ***High only 8.9 billion. Sixth China Coal Zhangjiakou Coal Machine Only half of the fifth Zheng coal machine, There is an obvious step difference. Rank Company Name Coal machine product sales Revenue ( ten thousand yuan) twenty four Lianyungang Tianming Equipment Co., Ltd. 121965 25 Shanghai Chuangli Group Co., Ltd. 113541 26 Pingdingshan Pingmei Coal Mine Machinery Equipment Co., Ltd. 110302 27 Linzhou Heavy Machinery Group Co., Ltd. 103497 28 Tiandi Technology Co., Ltd. Shanghai Branch 101626 29 Taizhong Coal Machinery Co., Ltd. 94980 30 Shandong Laiwu Coal Mine Machinery Co., Ltd. 93448 31 Shanxi Pingyang Heavy Industry Machinery Co., Ltd. 86933 32 Shanxi Coal Mine Machinery Manufacturing Co., Ltd. 83663 33 Shijiazhuang Coal Mining Machinery Co., Ltd. 73459 34 Xi'an Coal Mining Machinery Co., Ltd. 72380 35 Shandong Tago Mining Machinery Equipment Manufacturing Co., Ltd. 71693 36 CITIC Heavy Industry Machinery Co., Ltd. 71190 37 Too Heavy Coal (Singapore) Investment Co., Ltd. 69013 38 Zhengzhou Coal Machinery Equipment Co., Ltd. 68168 39 Beijing Tiandi Make Electro-hydraulic Control System Co., Ltd. 66334 40 Yankuang Donghua Heavy Industry Coal Machinery Equipment Manufacturing Branch 64458 41 Shandong Energy Heavy Equipment Manufacturing Group Xinwen Branch 62674 42 Shanxi Fenxi Mining (Group) Equipment Repair Factory 62591 43 Inner Mongolia North Heavy Industry Group Defense Department Tool Equipment Company 61429 44 Kaisheng Heavy Industry Co., Ltd. 59714 45 Changzhou Scientific Research Trial Production Center Co., Ltd. 59197 46 Shandong Xinmei Machinery Equipment Co., Ltd. 58976 47 Fushun Coal Mine Motor Manufacturing Co., Ltd. 57428 48 Shijiazhuang Industrial Pump Factory Co., Ltd. 56673 49 Ningxia Northwest Junma Motor Manufacturing Co., Ltd. 56036 50 Datong Coal Mine Group Electromechanical Equipment Company Central Machine Works 52001 Coal machine intelligence is a hot spot in the future industry, The top 50 companies have also been undergoing intelligent transformation. In addition,competition methods are gradually diversifying, For example,the development of Zheng Coal Machinery is very"topical." Acquired the SG business of Bosch, Break through the traditional thinking of the coal machine industry; High-profile appearance at the"BMW Show", The promotional video is comparable to TF Boys. It can be said that Zheng Coal Machinery in 2018, It has subverted people's traditional understanding of the"coal industry". These are especially worthy of the attention of other coal mining companies, Future development of coal machine industry Not only in terms of technology and other hard power, It will also test the soft power of the company's management,culture,and publicity.

Scraper conveyor is the main coal transportation equipment in the modern coal mining process, mainly divided into general mining scraper and fully mechanized mining scraper.Among them, the comprehensive mining scraper is one of the "three machines and one frame" of modern coal mining, and it is an indispensable coal machine equipment. Everyone's understanding of scraper machines may sometimes only stay on hearsay. Only frequent contact with scraper machines is really true. This time I share with you 100 common knowledge of scraper (Part 1), it can be said that it is the best in history! 1. It is mainly composed of the nose, middle and tail. 2. Scraper chain is divided into middle single chain, middle double chain, side double chain and quasi-edge double chain according to the arrangement. 3. Scraper conveyor can be used for horizontal transportation or inclined transportation. When transported along inclined transportation, the inclination angle of the coal seam should not exceed 25 °, and when transported downward, the inclination angle should not exceed 20 °. 4. The flexible scraper conveyor is allowed to bend 2 ° ～ 4 ° in the horizontal and vertical directions to facilitate the use of the corresponding shearer and self-moving hydraulic support. 5. The transmission device includes a motor, a coupling, a reducer, and a main shaft. 6. Chute is the guide mechanism of the traction chain and cargo load of the scraper conveyor. 7. Chute can be divided into middle chute, regulating chute and connecting chute. 8. The protection device of the scraper conveyor has a protection pin protection device and a friction plate protection device. 9. The safety device of the scraper conveyor includes a chain break protection device, an overload protection device, a failure stop protection device, an anchor device to prevent the nose and tail from tipping over. 10. Common control switches for scraper conveyors are manual starter and magnetic starter. 11. The role of shoveling coal plate is to put the floating coal on the coal wall into the chute after passing through the chute. 12. The scraper conveyor at the working face must be equipped with a signal device that can send a stop or start along the entire length of the fuselage, and the distance between the signal points should not exceed 15m. 13. When the tandem conveyor is overlapped in a straight line, the background head should be higher than the front end 0.3m before and after 0.5m. 14. When the two scraper conveyors are connected in a straight line, the height of the unloading center should be kept at 0.3m, and when it is greater than 0.5m, a coal skid should be added. 15. When installing and putting into operation, keep the conveyor flat, straight, stable and firm, and pay attention to the tightness of the scraper chain. 16. The scraper conveyor cannot be forcibly started. If the scraper conveyor fails to start or cut off the safety pin three times in a row, the cause must be found and dealt with before restarting. 17. When stopping, the coal flow should be carried out in order from the inside to the outside, and the coal rock on the scraper conveyor should be pulled away. 18. “Four inspections” refers to shift inspection, daily inspection, weekly inspection and monthly inspection. 19. "One perseverance" refers to perseverance in work positions. 20. "Three achievements" refers to the neatness of equipment and environment, the absence of floating coal in the machine head, machine path and tail, and the realization of a civilized production environment. 21. "Four diligence" refers to diligence in maintenance and inspection, diligence in inspection, diligence in handling oil injection problems, diligence in cleaning the head and tail coal storage pit. 22. "Four strict" refers to strict implementation of operating procedures, strict on-site delivery, strict inspection system and strict compliance with labor discipline. 23. Itinerant inspection generally adopts methods such as seeing, touching, listening, sniffing, testing and measuring. 24. The number of inspections per tour should be no less than 2-3. 25. The melting point temperature of fusible alloy protection plug is generally 110 ～ 140 ℃. 26. The running time of the hydraulic coupling under braking conditions is generally not allowed to exceed 1min. 27. Bridge transfer machine is a kind of intermediate transfer transportation equipment commonly used in mining face. 28. When driving the roadway, the transfer machine can be used as a conveyor for the driving face and can be used in conjunction with the retractable belt conveyor to transport coal and gangue during the driving process. 29. The bridge transfer machine is composed of three parts: nose, fuselage and tail. 30. The effective lap length of the transfer machine and the retractable belt conveyor is 12m. 31. The signal must be sent before the transfer machine is started. After no one is working on or near the transfer machine, jog it and start it 2 or 3 times, then start it officially. 32. When the transfer machine is used in the coal roadway, the moving method can be moved by the winch traction, the horizontal oil cylinder of the hydraulic support and the specially-designed moving hydraulic cylinder. 33. The mobile machine in the mining face must cut off the power and open the clutch immediately after each shift and when the driver leaves the machine. 34. The crusher is mainly used to crush large pieces of coal and gangue to prevent damage to the conveyor belt and ensure the normal operation of the retractable belt conveyor. 35. Commonly used crusher types are cone crusher, jaw crusher and wheel crusher. 36. The driver of the crusher must pass the training and examinations and hold a certificate. 37. The crusher should be started under no-load conditions, the time of two jogs should not be less than 90s, and the number of continuous jogs should not exceed 5 times. 38. When handling large pieces of coal, rock and gangue on the transfer machine, the crusher should be blocked. 39. The crusher should check the operation of the sliding clutch 3 times a week to ensure safe operation. 40. When there is no centralized control system, the start of multiple scraper conveyors should start from the outside to the inside in the direction of the reverse coal flow. 41. When the scraper conveyor transports materials, there must be a special person to pick up the material at the transportation site. When two people move materials from the chute at the same time, the rear end should be moved first, and then the front end should be moved to avoid injury. 42. The maintenance content of the scraper conveyor includes the patrol inspection during operation to replace some wearing parts in time, adjust the scraper chain, tighten the bolts and strengthen the lubrication. 43 A special person must be appointed to maintain the fluid coupling and fill the working medium as required. 44. The working medium used in the fluid coupling is not allowed to be changed casually, only water medium or inflammable liquid is allowed. 45. If you need to change the melting point temperature of the fusible alloy, you must replace the protective plugs with different melting points. 46. When the two conveyors are overlapped and transported, the overlap length is not less than 500mm; the distance between the highest point of the nose and the highest point of the tail is not less than 300mm. 47. When the scraper conveyor and the belt conveyor are overlapped and transported, the overlap length and the height difference between the head and the tail are not greater than 500mm. 48. The fluid coupling has good transmission performance and protection function. 49. The use of a hydraulic coupling between the conveyor, the motor and the reducer can realize the motor light-load start or no-load start, the load starts gently, absorbs shock and eliminates torsional vibration, and realizes load balancing in multi-machine drive Protect the motor and the entire transmission system. 50. The fluid coupling observes the law of conservation of energy and the theorem of momentum.