At present, how to dispose of low-grade sulfur has become a major concern for many industrial by-product low-grade sulfur enterprises. The co-processing low-grade sulfur technology developed by Jinsheng Intelligent Equipment Manufacturing Co., Ltd. and sulfuric acid enterprises can relieve the worries of industrial by-product low-grade sulfur enterprises.
The technology relies on the innovative transformation of the original gypsum-to-sulfuric acid co-production cement plant, which can synergistically process 1 million tons of solid waste such as low-grade sulfur and other industrial sulfur pastes, sulfur sludge, gypsum, etc., as well as 200,000 tons of titanium dioxide waste sulfuric acid and alkylation Waste sulfuric acid is 240,000 tons, and it can produce 400,000 tons of sulfuric acid and 600,000 tons of cement annually.
The technology is widely used in blast furnace gas desulfurization in the iron and steel industry, gas desulfurization in the coal chemical industry, sulfur-containing sewage treatment in the petrochemical industry, complex iron desulfurization in the natural gas industry, and biogas desulfurization. In the industries where sulfuric acid needs to be treated collaboratively, sulfuric acid and cement are prepared from sulfur paste, miscellaneous salts, gypsum waste residue and waste sulfuric acid, turning harm into profit and waste into treasure.
Economic and technical indicators of technology (equipment)
The decomposition rate of waste sulfuric acid is greater than or equal to 99.95%, and the decomposition rate of industrial by-product gypsum is greater than or equal to 98.5%; the heat consumption of clinker is less than or equal to 6100KJ/Kg; the sewage is closed in a closed cycle without external discharge; the flue gas is discharged up to the standard.
At present, the traditional cost of producing sulfuric acid from gypsum is about 300 yuan, the cost per ton of acid for cracking and treating alkylation waste sulfuric acid is as high as 600 yuan, and the cost of treating waste sulfuric acid in the gypsum sulfuric acid producing device is about 150 yuan.