Coal gangue is a solid waste discharged in the process of coal mining and coal washing, it is a kind of coal formation process and coal seam semi-born black rock with low carbon content and harder than coal. Coal mining is an important source of energy in China, the annual mining volume is huge, the discharge of coal gangue also increased, coal gangue abandoned, will occupy a large area, may also pollute the land and ecological environment, therefore, coal gangue waste reuse has been an important subject of research in China. With the rapid development of China's urbanization, the demand for bricks has increased greatly, because the clay brick making destroys the land, pollution, high cost, has been explicitly prohibited by the government, and coal gangue can just replace the clay brick making, therefore, coal gangue brick making is a good project for the benefit of the country and the people. Now China's coal gangue brick technology has been quite mature, made of high hardness, low cost bricks, economic benefits are very considerable, and also subsidized by government departments, become a hot investment projects.
"I have a coal washing plant, washing down the gangue can not be lost ah, open a coal gangue brick plant to use which equipment?"
"My home near a large coal mine, every year there are more than 100,000 tons of coal gangue output, I want to open a coal gangue brick factory, how much investment is needed?"
"Listen to friends say gangue brick market prospects, the specific process is how?"
Recently received a lot of friends consulting such issues, I think you are ready to invest in coal gangue brick making such doubts, today we will explain in detail.
Coal gangue crushing production line
Coal gangue, is a recyclable solid waste, sand and gravel industry friends are familiar with the relevant data show that coal gangue accounts for 15%-20% of coal production, investment profits are considerable, is the main raw material of coal gangue brick, after the processing of professional mining equipment, can be turned into treasure, continue to play a proper value and save resources. In the mining equipment market, roller crusher, impact crusher, jaw crusher, fine crusher, etc. can realize the crushing operation of coal gangue.
Coal gangue brick making raw material particle size is the basis of quality assurance, its crushing particle size should be less than 1.5mm, of which the particles below 0.5mm account for more than 65%, the processing of coal gangue is divided into three stages: coarse crushing of jaw crusher, medium and fine crushing of impact crusher or cone crusher and sand shaping of sand making machine. Coal gangue brick making process requires coal gangue powder with fly ash, clay shale and other production, the proportion of coal gangue powder between 30%-70%, coal gangue brick making generally to be crushed, screening, crushing, to the finished product, Dawn Heavy Industry innovation and technology, turning waste into treasure, so that coal gangue resources.
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