Solid waste treatment system

Abstract

The invention relates to the field of desulfuration aftertreatment, in particular to a solid waste treatment system which comprises a hydrocyclone, an unloading pipeline, an unloading control device and a vacuum belt conveyor; the hydrocyclone is used for carrying out preliminary filtering on slurry; the unloading pipeline is arranged at the bottom of the hydrocyclone; the input end of the unloading pipeline is connected with the output end of the hydrocyclone and is used for uniformly unloading the slurry after preliminary filtering; the unloading control device is arranged at the bottom of the unloading pipeline; the input end of the unloading control device is connected with the output end of the unloading pipeline and is used for controlling the opening and closing of the unloading pipeline and the slurry circulating rate; the vacuum belt conveyor is arranged at the bottom of the unloading control device; and the input end of the vacuum belt conveyor is connected with the output end of the unloading control device and is used for absorbing moisture of the serous fluid to form slurry. According to the solid waste treatment system, the hydrocyclone discharges thin serous fluid after coarse filtering, the vacuum belt conveyor pumps out thin seriflux, and the double alkali method solid waste is finally converted into CaSO4.2H2O with higher purity and utilization value.

Description

technical field [0001] The invention relates to the field of post-desulfurization treatment, in particular to a solid waste treatment system. Background technique [0002] At home and abroad, we have been paying attention to the harm caused by sulfur dioxide emissions to the environment. The state has invested in the introduction of foreign desulfurization technology and equipment, and built demonstration projects in more than a dozen thermal power plants across the country. The mainstream process technology route with empty tower spraying as the main process. However, due to the high operating costs of equipment, many power plants are in phased operation or not in operation, so reducing operating costs will play an important role in promoting the healthy development of China's environmental protection industry. Carbide slag is the waste after the reaction of calcium carbide and water to prepare acetylene. It is estimated that millions of tons of calcium carbide slag are st...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a solid waste treatment system. This technical solution solves the problem that desulfurization solid waste can only be disposed of in landfill and cannot be recycled. The solid waste treatment system is discharged after coarse filtration by a cyclone The dilute slurry, the dilute slurry water extracted by the vacuum belt machine, the solid waste of the double alkali method is finally converted into CaSO with high purity and high utilization value 4 .2H 2 o

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