Start environmental protection attack battle, walk on the fast track of green development

（bright workshop）

This is a kind of wet dedusting and exhausting equipment developed by Henan mine according to the characteristics of crane workshop with an investment of more than 34 million yuan, commonly known as "water dedusting equipment". It makes the dust-bearing gas in close contact with the liquid (usually water), uses the inertial collision of water droplets and particles and the full mixing of water and dust to collect dust particles.

The device first uses the suction of a high-pressure centrifugal fan to press the dusty gas into a tank with a certain height of water. After uniform distribution, the gas flows from the bottom to the top, while the high-pressure sprinkler is sprayed with water mist from the top down to collect the remaining dust particles, and the filtration efficiency can reach over 85% .

The wet dedusting equipment can remove the dust particles of the dust-containing gas, as well as the water vapor in the gas and some poisonous and harmful gas pollutants. Therefore, the wet collector can not only dedusting but also treating the gas.

 

It has the advantages of simple structure, small floor area, convenient operation and maintenance, and high purification efficiency. It has high efficiency for purifying high specific resistance, high humidity, high temperature, flammable and explosive dust gas, which minimize the possibility of fire and explosion. The air quality in the workshop has been greatly improved.

Henan Kuangshan co, Ltd , as a responsible crane manufacturing enterprise, insists on taking environmental protection work as the first important political task of the company at present and in the future. It is willing to invest huge sums of money, and carries out all-round environmental protection according to systematic planning, regardless of cost, return, schedule inversion, responsibility inversion and self-pressure. Ensure upgrading, dismantle high pollution, high energy-consuming equipment, and actively introduce new technology, new equipment, to meet the strict requirements of environmental protection standards.The acquisition and renovation of environmental protection facilities, although the company has increased the cost, we think it is necessary and worthwhile.

（Remove energy-consuming and polluting boilers）

(Uv photooxygen catalytic waste gas treatment equipment and activated carbon spray treatment box)

(Electrostatic smoke purifier)

Cui Peijun, the founder of the company and Secretary of the Party committee, urged all the staff to understand the importance and urgency of developing green production and environmental protection from a strategic point of view, further enhance their consciousness and sense of responsibility, resolutely support the call of the Party Central Committee, and ask all the staff to respond positively and devote themselves wholeheartedly to the blue sky defense battle.

The company has set up a special safety and environmental inspection team to promote cleaner production, environmental risk identification and hidden danger detection and management, occupational hazard assessment, and the whole process control of hazardous waste and general solid waste from the aspects of system, management and technology. Third-party environmental inspection organizations are regularly invited to conduct online monitoring of various emission sources , with the recovery of qualified enterprises signed solid waste, hazardous waste recovery contracts, and the hazardous solid waste shall be recycled irregularly.

(Third party environmental safety monitoring)

（Occupational hazard status evaluation report）

(Hazardous waste warehouse)

The company should establish a target responsibility system and be responsible for the system construction, implementation, assessment and reward of environmental protection measures. The company has completed the work of green plant declaration to ensure that environmental protection management is controlled.

In recent years, the company has increased investment in new process, new technology, new equipment and new product research and development, vigorously developed green manufacturing, and sought for transformation in green development.

 

1．Process innovation to reduce energy consumption

 

In 2013, the company cooperated with Beijing hoisting and transportation machinery design and research institute, hired German crane experts, and completed the "flexible production line project of single-beam crane" according to ergonomics and workpiece flow.

The main girder of electric single-girder crane was originally made of U-shaped slot stiffened plate welded I-steel, and then welded the two sides of the plate and connected end carriage. The disadvantages of this technology are low production efficiency, high labor intensity, high welding cost, long welding process time-consuming, large welding deformation, more welding fume and serious pollution in the welding process. It is difficult to guarantee the welding quality in the process of multi-section tailoring, welding and shaping, and sometimes cracks are found in the transverse weld of the main beam.

(New technology once-forming U-shape)

Aiming at the above defective workmanship and improving productivity efficiency, our technical transformation team has transformed the craft section with the adoption of main girder U-shape and side plate without joint. The key point of technological transformation lies in the application of hydraulic cold bend pipeline technology and Corresponding mechanical analysis to realize the overall forming of the main girder without butt weld. In addition, under the assistance of the girder forming calibrator and girder welding machine, the single-girder production welding line is reduced by 50%, the overall strength of girder is improved, the welding quantity is reduced, the appearance quality is improved, the labor intensity of front-line workers is greatly reduced, the working efficiency is improved, the environmental pollution is reduced and the working environment is improved.

 

Our wheel forging, rolling and compaction assembly line has created a precedent for ordinary electric single-beam bridge cranes in China to use this process wheel, which not only improves the production efficiency but also greatly improves the products’ quality and appearance. Compared with the casting process, thermal energy loss is reduced by 50%, energy utilization is increased by 40%, and energy saving and emission reduction production is realized. It is of great significance to reduce carbon emission and protect the environment.

(Casting wheel)

( forging wheel )

We have jointly implemented the reform of intelligent production line of European crane with Siemens, and the improvement of crane manufacturing process digitalization, which will build a world-class crane digitization factory. The crane products will be intelligentized, energy-saving, lightweight, improved, popularized and popularized, and the crane products in Henan will be promoted to world class level.

2. Energy saving and emission reduction by machine replacement

 

Intellectualization of industrial manufacturing is an important mark to measure the level of modern technology and also an important content of intelligent social development. In recent years, henan Kuangshan Mine Crane Co,. Ltd. has vigorously promoted the transformation of automation (intelligent) complete sets of equipment through "machine replacement" project, and achieved the automation of part of production processes and assembly lines through "machine replacement", which reduced labor intensity and simplified production process, and received the dual effects of reducing personnel and increasing efficiency and saving energy and consumption. We will improve product quality through high-end manufacturing and green manufacturing, promote energy conservation and emission reduction, promote industrial transformation and upgrading, and replace the demographic dividend with the technological dividend. 

(Welding line of robot end carriage)

（Six axis joint type robot）

(Truss automatic loading and unloading robot）

3.New products are lightweight and environmentally friendly

 

We adopt green design concept, design, manufacture and test execution of the latest issued by the relevant state standards, equivalent part using FEM, DIN, IEC and other foreign standards, compared with the original general QD type bridge crane products, reduce weight about 15 ~ 30%, the largest round reduce little about 10 ~ 35%, and can reduce the requirement of crane structure of workshop, workshop manufacturing cost saving. The application of high-strength materials on a large scale, unjointed undercutting of main girders, automatic welding technology and laser cutting technology can realize energy conservation and environmental protection in the production process and reduce the pollution damage to the environment. While maintaining steady development, the company has increased the r&d and production of automatic, intelligent, lightweight and environment-friendly new products and embarked on the road of sustainable development relying on scientific and technological innovation.

 

With the coordinated development of the green idea thorough popular feeling, henan mine set up a work of energy conservation and emissions reduction, and improve the corresponding rules and regulations, attaches great importance to the use of technology, management comprehensive means, take the market as the guide to carry out the energy conservation and emissions reduction, not only to bring economic benefits to their own, more to protect the environment, positive social benefit.