Sulfurgypsum and phosphogypsum waste residue brick making process

Abstract

The invention discloses a sulfurgypsum and phosphogypsum waste residue brick making process. The sulfurgypsum and phosphogypsum waste residue brick making process comprises the following steps: matching by a system according to an input formula after gypsum waste residue is subjected to water analysis; measuring and calculating the content of a corresponding OX-series modified cementing material;then, automatically weighing the OX-series modified cementing material by a measurement scale, and conveying the weighed OX-series modified cementing material to a stirring machine for stirring and mixing; after the material is mixed, conveying the material to a crushing machine through a belt, and crushing the material into fine particles; conveying the fine particles to a brick making machine through a belt; pressing and forming through the brick making machine, and sorting through an automatic control manipulator; feeding bricks into a curing area for stacking and curing through a stackingmachine; and after a curing period is expired, performing sampling inspection through a quality assurance department according to regulations, and enabling the bricks to leave a factory after the bricks are qualified. The sulfurgypsum and phosphogypsum waste residue brick making process has the beneficial effects that building blocks are made by adopting a plurality of levels of super-strong consolidation materials and a staged solid waste strengthening sealing technology; the made building blocks have high strength and light weight; compared with concrete building blocks with the same volume,the weight is reduced by 50 percent; and secondary pollution cannot be produced because a calcining hardening and desulphurizing process is not used in a making process of the manufacturing process.

Description

Technical field [0001] The invention relates to the technical field of solid waste treatment, in particular to a brick making process of sulfur gypsum and phosphogypsum waste residue. Background technique [0002] China is the world’s largest producer of phosphate fertilizer industry, but every ton of phosphate fertilizer produced will produce three tons of phosphogypsum industrial waste, and 40 million tons of industrial phosphogypsum are newly added every year. The current stock of phosphogypsum slag is as high as 300 million tons, which is harmful to the environment. The phosphogypsum slag is only a very small part of the industrial solid waste. The accumulation of a large number of industrial solid wastes in the country has caused the national leadership to attach great importance to the environmental pollution hazards of the country. A number of policies have been issued to support industrial solid waste. Comprehensive utilization and treatment of waste. [0003] The goal of ...

AI Technical Summary

Problems solved by technology

The government will definitely vigorously develop solid waste treatment business nationwide. This is also an urgent measure under the current environmental conditions, especially for the solid waste treatment of sulfur gypsum and phosphogypsum. It can be said that there is no breakthrough progress in China at present.

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