About Us

Henan LIMING Heavy Industry Science and Technology Co. LTD which mainly manufacture large and medium-sized crushing and grinding equipments was founded in 1987. It is a modern joint-stock corporation with research, manufacturing and sales together. The Headquarter is located in HI-TECH Industry Development Zone of Zhengzhou and covers 80000 m ². Another workshop in Shangjie Industry Park covers 67000 m ². Over the more than 30 years, our company adheres to modern scientific management system, precision manufacturing, pioneering and innovation. Now LIMING has become the leader in domestic and oversea machinery manufacturing industry.

120

million

cubic meters

Industrial chain production base

70

national patents

689sets

national patents

170

Equipment service country

Company Culture

core values of the company

Create Value

Share Value

Observe Order

Respect Value

Service philosophy

Religious, fine, tight, and harmonious

LIMING spirit

Standardization, value, serialization, and differentiation will always exceed our contract

Brand Concept

Create and promote civilization, refine and interpret brilliantly

Business philosophy

Religious, meticulous, rigorous, and harmonious work

Our Global Footprint

Case Scene

The Dangers Of Coal Mines - Nation

14/09/2018  According to Pakistan Central Mines Labour Federation, between 100 and 200 labourers die every year in coal mine accidents. There are on-the-job risks of mining that include accidents like cave-ins, floods, gas explosions, chemical leakage to name a few. Health risks also increase manifold because of the dust, vaporised molten metal and mercury they inhale. State intervention is direly

Beware the dangers of past mining activity

06/08/2018  The new 2018 CON29M guidance, published in June, now emphasises the potential risk from shallow coal mining, as well as the potential risks from other mining activities, such as chalk, metals and brine. It also introduces the facility for a new report producer to

Coal Mining Dangers: Safety Measures to Prevent Disaster

Coal Mining Dangers: Required Safety Measures to Prevent Disaster The most serious danger to a coal miner underground is methane gas – the natural by-product of mining coal. There are very specific safety measures that the Federal and State government require to protect miners.

DANGERS OF COAL MINING - Coal Mining - Weebly

Thousands of people have died in coal mining accidents. Accidents can happen for many different reasons like cave ins and gas explosions. There have been many accidents in coal mines like on May 13, 2014. This accident in Turkey was caused by a gas explosion. 302 people were killed during this accident. Another recent accident was in West Virginia. This only killed one person but many others ...

The Impact of Coal Mine Accidents - HG

Coal mining accidents have a variety of causes. Methane explosions are the most dramatic coal mining accidents and therefore receive more media coverage. Far more miners are injured or killed, however, in accidents involving coal stockpile collapse, longwall shield collapse, falls, burns, electrocution, improperly functioning equipment and coal miner's pneumoconiosis or silicosis. In addition to the inherent dangers

Coal Mining: Injuries, Illnesses, and Fatalities Fact Sheet

Coal mining is a relatively dangerous industry. Employees in coal mining are more likely to be killed or to incur a non-fatal injury or illness, and their injuries are more likely to be severe than workers in private industry as a whole, according to the Bureau of Labor Statistics. Coal mining is part of the Mining sector along with other mining and extractive industries such as oil and gas. Coal mining is further divided

The Hazards of 19th Century Coal Mining eHISTORY

A system to ventilate the mine and to provide fresh air to the miners. A special problem in coal mines was the methane (a gas) that sometimes accompanied coal, and which could--and too often did--catch fire and explode. Andrew Roy was one of the expert coal miners who migrated from Britain to work in American mines. Roy worked in the bituminous coal fields in Ohio, and became a leader of the miners and a leader of their efforts to build a coal

Coal Mining Documentary - The Most Dangerous Job On

09/11/2017  Coal Mining Documentary - The Most Dangerous Job On Earth - Classic HistoryCoal mining is the process of extracting coal from the ground. Coal is valued for ... Coal is valued for ...

US Mine Disasters Fast Facts CNN

13/07/2013  July 24, 2002 - Nine coal miners from Quecreek Mining Inc. in Somerset County, Pennsylvania, are trapped in a four-foot-high chamber 240 feet below the surface after breaching a

Probabilistic Prediction of Mine Dynamic Disaster Risk ...

Rock burst and coal and gas outburst are the most serious dynamic disasters in coal mine and are affected by many factors, such as mining engineering environment. In order to accurately predict the risk area of mine dynamic disasters, a series of impact factors and events are classified, and the spatial data of these factors are managed on the basis of identifying the internal relationship ...

An Epidemic Is Killing Thousands Of Coal Miners ...

18/12/2018  Former coal miner Danny Smith and his family used to ride their ATVs and go camping on this reclaimed strip mining site in Pike County, Ky. But Smith is

8 disadvantages of coal mining and energy production

02/02/2020  Coal mining is extremely dangerous for our planet, nature, and humanity. It causes terrible catastrophes and incurable diseases. And it’s impossible to estimate all the damage caused by this industry. Right now the drawbacks of coal mining are obvious and we should do our best to protect the environment. If we don’t want to live in a world where acid rain is an everyday weather activity ...

Increasing Permeability of Coal Seam and Improving Gas ...

Gas disasters have been a major factor threatening the safe and efficient production of mines during coal mining [1, 2]. Predrainage of coal seam gas is a method to control gas disasters, but coal seams in a lot of mines have low permeability, high ground stress, and difficulty in gas drainage [3–8].

Environmental issues from coal mining and their

01/03/2010  Methane emission from coal mining depends on the mining method, the depth of coal mining, the coal quality and the entrapped gas content within the coal seam. As mining proceeds methane is released into the mine air to be eventually discharged into the atmosphere. Methane emissions from coal mining are listed in Table 3 by country in terms of the rank as of 2000. Methane

‘Coal ash accidents caused severe damage’ Nagpur News ...

27/07/2020  Shweta Narayan, coordinator of Healthy Energy Initiative India, said, “While mining and coal burning have received their fair share of attention, the dangers of coal ash and the impacts of its ...

Coal Mining Fatality Statistics: 1900-2019

Coal Fatalities for 1900 Through 2020. Office workers included starting in 1973.

Effects of coal mining on the evolution of groundwater ...

15/04/2019  The mining industry, especially coal mining, may severely affect the spatial and temporal evolution of groundwater. To provide a potential model outlining the hydrogeochemical evolution of groundwater as influenced by coal mining, a multi-layer groundwater system in a coal mining area was investigated. A total of 76 groundwater samples were collected between 1964 and 2018 for

What is behind the deaths of coal miners in Balochistan ...

25/09/2018  Coal mining has historically been fraught with hazards, which are similar to those associated with the aftermath of natural disasters: suffocation, gas

US Mine Disasters Fast Facts CNN

13/07/2013  July 24, 2002 - Nine coal miners from Quecreek Mining Inc. in Somerset County, Pennsylvania, are trapped in a four-foot-high chamber 240 feet below the surface after breaching a

EXPERT PITCH: Coal mining dangers remain 50 years after ...

27/12/2018  Coal mining dangers remain 50 years after Coal Mine Safety and Health Act, subsequent mine disasters Thursday, December 27, 2018 Nearly 50 years after the passage of the federal Coal Mine Safety and Health Act, significant occupational dangers for coal

Probabilistic Prediction of Mine Dynamic Disaster Risk ...

Rock burst and coal and gas outburst are the most serious dynamic disasters in coal mine and are affected by many factors, such as mining engineering environment. In order to accurately predict the risk area of mine dynamic disasters, a series of impact factors and events are classified, and the spatial data of these factors are managed on the basis of identifying the internal relationship ...

An Epidemic Is Killing Thousands Of Coal Miners ...

18/12/2018  Former coal miner Danny Smith and his family used to ride their ATVs and go camping on this reclaimed strip mining site in Pike County, Ky. But Smith is

Environmental issues from coal mining and their

01/03/2010  Methane emission from coal mining depends on the mining method, the depth of coal mining, the coal quality and the entrapped gas content within the coal seam. As mining proceeds methane is released into the mine air to be eventually discharged into the atmosphere. Methane emissions from coal mining are listed in Table 3 by country in terms of the rank as of 2000. Methane

Dangers in the World's Deepest Mines -

18/01/2019  These dangers aren’t just limited to China, of course. In the United States, there have been many incidents at the coal mines in Pennsylvania and West Virginia that have claimed many lives. Earthquakes and Mine Tunnel Collapse . The seismic activity can also cause disturbance of the rock and the support structure established by the mining ...

Coal Mining Fatality Statistics: 1900-2019

Coal Fatalities for 1900 Through 2020. Office workers included starting in 1973.

‘Coal ash accidents caused severe damage’ Nagpur News ...

27/07/2020  Shweta Narayan, coordinator of Healthy Energy Initiative India, said, “While mining and coal burning have received their fair share of attention, the dangers of coal ash and the impacts of its ...

A federal success: 50 years of coal mine safety

25/11/2018  Sadly, coal mining fatalities dramatically increased to 48 in 2010, with the tragedy at the Upper Big Branch Mine claiming 29 lives in addition to the 19 other coal miners killed that year. In 2011, 21 coal miners were killed in accidents. 2012 saw 19 coal miners killed in accidents.” The numbers have decline since then.

Experimental Study on the Static and Dynamic Mechanical ...

Received 8 April 2018; Accepted 17 September 2018 _____ Abstract In deep coal mines, a coal seam usually contains high gas pressure and is subjected to static and dynamic loading due to mining-induced stress and sudden fracture of hard roof. In this study, two experimental equipment of gas-containing coal under static and dynamic loading was developed for the investigation of the static and ...

The current situation and prevention and control ...

01/06/2019  The mining of deep coal resources in China will be fully entering the 1000–2000 m stage in the next 20 years . The coal mines with depths over 1000 m will become the main battlefield for future coal mining. Meanwhile, the rapid development of the coal industry has promoted research on the theory and technology of coal mine disaster prevention ...