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Novel carbide slag slurry preparation and storage system

A kind of calcium carbide slag slurry, a new technology, applied in the field of flue gas desulfurization, can solve the problem of time-consuming and laborious

Pending Publication Date: 2020-08-04
华润电力登封有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the calcium carbide slag stored in the container needs to be used in the process of removing impurities and stirring, which is time-consuming and labor-intensive.

Method used

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  • Novel carbide slag slurry preparation and storage system

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Embodiment Construction

[0025] The core of the present invention is to provide a new type of calcium carbide slag slurry production and storage system, which eliminates the problems that are likely to occur during the storage of solid carbide slag, and stores a part of the carbide slag slurry through the pulping box and the storage box, which can not only improve the calcium carbide slag. Storage and reserve capacity, to prevent the lack of desulfurizer due to untimely procurement of carbide slag. It is also possible to naturally precipitate the calcium carbide slag slurry that has been removed from the pulping box in the pulp storage box. By inputting the calcium carbide slag supernatant to the desulfurization Adjust the PH value or perform other treatments in the gypsum wastewater to reduce the chloride ion content of the calcium carbide slag in the pulp storage tank, effectively solving the problem that the calcium carbide slag desulfurization gypsum is not easy to dehydrate due to the influence of ...

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Abstract

The invention relates to the technical field of flue gas desulfurization, and particularly discloses a novel carbide slag slurry preparation and storage system, which mainly comprises a material guidegroove, a slurry preparation box and a slurry storage box, according to the invention, a part of carbide slag slurry is stored through the slurry preparation box and the slurry storage box; the storage and standby amount of the carbide slag can be improved; the desulfurizing agent loss caused by untimely purchasing of the carbide slag is prevented; the carbide slag slurry subjected to impurity removal by the slurry preparation box in the slurry storage box can also be naturally precipitated; a carbide slag supernatant is input into the desulfurized gypsum wastewater to adjust the PH value orperform other treatment, so that the chloride ion content of carbide slag in the slurry storage tank is reduced, and the problem that carbide slag desulfurized gypsum is not easy to dehydrate due to the influence of chloride ions is effectively solved.

Description

technical field [0001] The invention relates to the technical field of flue gas desulfurization, and more specifically, relates to a novel production and storage system of carbide slag slurry. Background technique [0002] Carbide slag is the waste of polyvinyl chloride produced by the acetylene process. Its main component is calcium hydroxide, and other impurities include calcium carbide, silicon dioxide, coke, ferrosilicon, sulfide, phosphide, tar, chloride ions, etc. Carbide slag mainly comes from the production of calcium carbide polyvinyl chloride and vinyl acetate. The production of 1 ton of polyvinyl chloride consumes about 1.45 tons of calcium carbide, and each ton of calcium carbide is hydrolyzed to produce 1 ton of calcium carbide slag, so 2 tons of calcium carbide slag must be discharged for every 1 ton of polyvinyl chloride produced. Calcium carbide slag is large in quantity, high in alkali content, and contains harmful substances such as sulfur and arsenic. If ...

Claims

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Application Information

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IPC IPC(8): B01D53/48B01D53/77
CPCB01D53/48B01D53/77
Inventor 李永宁暨思叡尹卫民董彦春严亚军崔杰
Owner 华润电力登封有限公司
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