Taking coal gangue and fly ash as raw materials, using the international advanced special production line: dynamic sintering ceramsite equipment production line, using 100% solid waste, the ceramsite is made by scientific proportioning, nucleation, granulation, roller screening and sintering. It has the advantages of light weight, high strength, large specific surface area, fire resistance, heat preservation, low water absorption, good chemical stability, impermeability, corrosion resistance, good sound absorption and so on.
Using dynamic sintering ceramsite production line, the overall system layout is reasonable and economical. Precise metering is carried out by screw conveying (static metering is adopted), that is, there is a metering bin below the raw material bin for metering, which is respectively input into the bin pump by screw conveyor for homogenization, and then delivered into the next mixing bin, namely the buffer bin by pneumatic conveying.
Then enter the horizontal mixer, that is, the feeding system is closed from the beginning to the mixing. Enter the next pelletizing process, after pelletizing, enter the rotary belt conveyor, roller screen and sintering system, and adopt negative pressure dust removal and waste heat recovery process to realize clean production with high efficiency, energy saving, no pollution, no dust and no waste water discharge.
Core technology of using coal gangue as ceramsite
Dynamic sintering ceramsite production line, 100% solid waste utilization rate, the first in the country; Large capacity, continuous and stable production, production scale10 ~ 300,000 cubic meters/year; Unique pelletizing and sintering technology and equipment, the yield is over 95%; Energy-saving, using negative pressure dust removal, dynamic sintering, waste heat recovery process, high efficiency and energy saving, energy saving can reach 50%.
The process can produce1~ 20mm (1-3mm; 3-5mm； 6-9mm； 10-20mm)； According to the bulk density, it can be divided into light, ordinary and super-strong ceramsite, and according to the use, it can be divided into building materials ceramsite, biological ceramsite filter material, landscaping ceramsite, soilless culture ceramsite, heat storage ball and so on.
Advanced automatic design technology. The automatic control level of ceramsite production line is high, complete process detection and control items are set up, and domestic advanced and mature sintering control software is adopted to realize the automatic control of the whole production process.