Analysis on the Environmental Pressure and Technology Exploration of Grinding Enterprises

"Positioning determines status, and thinking determines the way out." I took this passage as the opening remark of the article. This is the corporate culture of a private enterprise. After reading it, I feel that this passage is simple and meaningful, and it is worth recalling.
Since May 2016, the state has incorporated the environmental protection issues of enterprises into the national development strategy, and has carried out a series of strategic layouts and strict control measures. In 2016, the most stringent environmental protection law has been introduced in 2016, and the national scope in 2017 is not divided. The regional and non-existent environmental inspections have set off a huge wave of environmental problems in the country. At one time, red cards in various regions and industries have been frequent. No matter whether the state-owned enterprises or private enterprises are in the middle of the gun enterprises, some regions and The industry was almost completely annihilated, and none of them leaked. In the face of such a huge wave of environmental governance, how should enterprises face it? For a time, many companies are at a loss.
As far as the country's environmental policy is concerned, there are still companies waiting to wait and see. Please don't hesitate any more. The country's policy and history are not going to go backward. Protect the environment, solve the extensive backward production capacity, and realize supply-side reform. The overall plan is an irreversible policy. Only by adapting to the changes in history can we survive and develop in a difficult situation.
For the grinding companies, what are the environmental problems that are difficult or unresolved? For example, there are currently several types of problems for abrasive companies, from the source of raw materials:

First, brown corundum:
1. Raw material problem: At present, there are two problems in light-burning bauxite. First, in the face of excessive mining and waste, the quality of bauxite is less and less, and the second is the earthen kiln and coal burning of light bauxite. The water gas process has been banned by the state, and new calcination processes and calcination equipment are urgently needed. At the same time, the dust removal and desulfurization problems in the new calcination process are also urgently needed to be solved.
2. Smelting process: In the process of brown sapphire smelting, most of the smelting enterprises currently have dust removal equipment, but the equipment itself is not based on the correct evaluation and theoretical calculation of smoke volume and smoke characteristics, most of which are based on the gourd painting Mutual plagiarism and imitation, not based on the amount of material input and the amount of gas released during the reaction, the total power consumption, the amount of gas heating and expansion, the amount of gas in the furnace door and electrode holes, and the volatilization of other substances during the smelting process. The amount of total flue gas is calculated, so the total air volume is often far lower than the actual amount. The small horse-drawn carts are incapable, leading to a low collection rate of dust collectors and a high proportion of escaped smoke and dust. The purpose of spending money. In addition, especially in the brown fused smelting process, due to the large amount of smoke, strong impact, and imperfect infrastructure, no one in China has been able to completely solve the problem of furnace dust during brown smelting for decades.
3, granulation production line: the current abrasive granulation production line, the overall level of the country is still a large amount, the quality is rough, the homogenization is serious, the production environment is relatively bad, the dust can not control. This leads to a low level of overall product quality, which has made the company always on a low-profit survival line, and it is difficult to have the power to upgrade and upgrade.
4. At the same time, white corundum, silicon carbide, boron carbide and other products also have similar problems. They exist all the year round and are used to it. I found out how the problem broke down in theory and practice, and gradually solved the ills that existed in the abrasive industry. Under the leadership of the chairman of the board, Zhengzhou Jinxi people passed 50 years of painstaking research and reference, and introduced domestic and foreign industry or other industries. Mature technology, and the strong support of industry associations and the general recognition and support of colleagues in the abrasive industry, has been systematically implemented and transformed in many domestic abrasive enterprises, and achieved phased results.
As a development-oriented unit specializing in R&D, design, production and production of abrasives and abrasives, Zhengzhou Jinluo has repeatedly led the technological revolution and technological revolution in the industry for 20 years to keep the level of China's abrasive processing technology and processing technology catching up with international standards. Horizontal situation.

Second, I would like to share with the industry colleagues some technical points about environmental management of grinding enterprises:
1. To do a good job in environmental management First, conduct environmental analysis on dust or fumes that affect the environment:
The main contents are: ambient temperature, humidity, atmospheric pressure, dust concentration, composition analysis of dust, physical and chemical properties of dust, such as dust particle size, specific gravity, corrosivity, toxic and harmful characteristics.
2. Secondly, dust or smoke release characteristics should be considered:
The determination of the release point of the soot, the total amount and frequency of the release of the soot point, and the diffusion rate of the soot.
3, the layout of the dust removal equipment, here the combination of process layout and operating costs, both to consider the rationality of the process and the feasibility of operating costs, while paying special attention to the convenience and operability of equipment maintenance.
4. After mastering the above resources, the link to be paid attention to is the rationality and feasibility of the design. Generally speaking, in order to ensure the long-term effective operation of the dust removal equipment, the construction air volume is greater than the calculated air volume in the design by 15%-20%. At the same time, it should be considered in the design, pipeline wind damage, elbow wind loss, variable diameter wind loss, device wind loss and pressure drop, including the body deceleration of the dust collector, filter material protection, filtration accuracy, filtration wind speed, filter material use. Life and many other technical links, so the dust removal effect is a system problem, involving many problems, the complexity is sometimes difficult to fully reflect in words.
In short, a well-designed, well-running dust removal system requires in-depth on-site, familiarity with environmental conditions, understanding of the operating process, and the use of various technical means to effectively collect and control the flue gas without affecting the operation and equipment maintenance. It is possible to reduce and eliminate system wind damage, ensure long-term operation margin design, and meticulous production and high-level installation team to complete a high-level environmental protection system. In particular, the large amount of sudden high-density flue gas generated during the dumping process of the dumping furnace has not been reasonably solved in the industry. In 2015, Jinhao Company cooperated with Baige, with the cooperation of the pigeon leader and all the staff. Kim Min-soo carried forward the spirit of seeking truth from facts and improving the craftsmanship. He conducted a lot of research and investigation on the smoke situation of the brown fused alumina smelting process, and fully understood the various equipment types, various smelting processes, and each in the process of brown fused alumina smelting. In the case of the proportion of raw materials, the temperature of the flue gas, the total amount of flue gas in the smelting process, and the divergence state, comprehensively grasp the specific working conditions of each stage of the brown fused alumina smelting process, through nearly one The annual effort to achieve smelting control, temperature control and energy consumption control in the whole process of smelting from 5000 tons to 10,000 tons of brown corundum smelting furnace; successfully achieved smelting and dumping on the domestic brown fused alumina smelting furnace for the first time. Smoke collection and disposal problems throughout the process.
At present, the country and the industry have put forward some problems and solutions; vigorously support enterprises with ability to think, replace the backward production capacity with advanced new production capacity, and gradually make a batch of new ideas, high quality and high profit capacity become bigger and stronger. To replace and eliminate a large number of backward production capacity, so that the corundum industry will be replaced in the industrial technology, quality, equipment, technology and environmental protection level in 3-5 years to achieve industrial transformation.
In the face of the current situation, the grinding enterprises must correct their attitudes, adjust their thinking, accurately locate and emancipate their minds, keep up with the national policy of industrial restructuring, open up new markets, develop and improve new technologies, new equipment and new products, and Refinement, segmentation, automation, and intelligence must be the way out for efficiency. Only through the joint efforts of the whole industry can we achieve real industrial upgrading. "Position determines the status, and the way of thinking determines the way out."

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