General solid waste disposal
BUSINESS SECTOR
General solid waste disposal
The company is equipped with 340,000m3 of solid waste landfill pit,with the annual realization of solid waste landfill of 500,000 tons.Solid waste is transported to the landfill area by transport truck,and then enters the landfill area after being weighed by the wagon balance at the entrance.Under the command of field personnel,dump,spread,compaction,water spraying and soil covering shall be carried out according to the order of landfilling operation,and layered landfill shall be conducted according to the unit.The landfill process flow chart is as follows:
Process flow chart of waste landfill
New-type material component of low temperature ceramic modified phosphogypsum brick
The company is equipped with the 500,000 m3/year reinforced gypsum block production unit.This device takes the general solid waste phosphogypsum,fly ash and calcium carbide slag produced in the production process of Shaanxi Shanhua Coal Chemical Group Co.,Ltd.(hereinafter referred to as SCCG)as the main raw materials,and the low temperature ceramic cementing material prepared as the modified material,and appropriately with solid waste slag such as boiling furnace slag,gasification slag as aggregate,adding the 1‰admixture equal to 1‰of the total amount of raw materials,it is produced through material pretreatment,mixing,kneading homogenization,dispersion,forming,static stop,curing.The product features to be of heat preservation,sound insulation,moisture prevention,fire prevention,energy conservation,environmental protection,solid,standard appearance size,no deformation,beautiful.The production process is free of waste gas,waste water and waste residue,achieving the comprehensive resource utilization of phosphogypsum,fly ash,calcium carbide slag,gasification slag and other wastes.
This project consumes about 350,000 tons of phosphogypsum every year,which is equivalent to reducing the area of Duncun by 20mu,with significant social benefits.
Phosphogypsum is an inevitable by-product in the production of high concentration phosphate fertilizer.For every 1 ton of phosphoric acid(100%P2O5)produced,5~5.5 tons of phosphogypsum will be produced.SCCG will produce 750,000 tons of phosphogypsum every year,and the accumulative storage over the years has exceeded 50 million tons.The accumulation of a large amount of phosphogypsum has caused serious environmental pressure on the enterprise and restricted the sustainable development of the enterprise.
Vigorous development of new wall materials
According to the“13th Five-Year Plan”for New Wall Materials in Shaanxi Province released by Shaanxi Building Energy Saving Wall Reform Office,to vigorously develop new wall materials is the realistic inevitable requirement for enhancing comprehensive resource utilization,protect land and ecological environment,and promoting the energy-saving and green development of buildings.Combined with the Regulations on the Development and Application of New Wall Materials in Shaanxi Province,the Guiding Opinions of the General Office of the State Council on Promoting Steady Growth,Adjusting Structure and Increasing Efficiency of the Building Materials Industry(GFB[2016]No.34),Green Building Action Plan,the Outline of the 13th Five-year Plan for National Economic and Social Development of Shaanxi Province as well as other national and provincial related policy documents,the development of new wall materials is vigorously advocated.
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