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Device and method for preparing building gypsum from phosphogypsum

A technology of building gypsum and phosphogypsum, which is applied in the field of mineral processing equipment to achieve the effects of high product quality, easy control and stable product quality

Active Publication Date: 2018-08-03
枣庄盛世机械科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] This patent provides a device and method for preparing building gypsum from phosphogypsum, which solves the problem of large-scale preparation of building gypsum from existing phosphogypsum waste

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  • Device and method for preparing building gypsum from phosphogypsum
  • Device and method for preparing building gypsum from phosphogypsum

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Embodiment Construction

[0024] The structure of the present invention is shown in the figure,

[0025] The device for preparing building gypsum from phosphogypsum includes an aging device in the front, a drying device in the middle, a calcining device and a ball milling device in the rear; the aging device includes a raw material hopper, an additive warehouse, a mixing device and The aging bin, the raw material hopper and the additive bin are equipped with a conveying mechanism and extend to the mixer, and the mixer conveys the mixed material to the aging bin; the front of the drying device is also equipped with an iron remover, and the outlet of the drying device The material end is provided with conveying equipment to the intermediate warehouse, the discharge end of the intermediate warehouse is provided with conveying equipment leading to the fluidized furnace of the calcination device, the discharge end of the fluidized fluidized furnace is provided with conveying equipment to the ball mill, and t...

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Abstract

The invention relates to a device for preparing building gypsum from phosphorus gypsum and a method using the device and belongs to mineral processing equipment. According to the technical scheme, the device for preparing building gypsum from phosphorus gypsum comprises an ageing device at the front part, a drying device and a baking device in the middle as well as a ball milling device at the rear part, wherein the ageing device comprises a raw material hopper, an additive bin, a mixing device and an ageing bin which are arranged in sequence, conveying mechanisms are arranged below the raw material hopper and the additive bin and extend into a mixing machine, and the mixing machine conveys the mixed mixture into the ageing bin; an iron separator is further arranged at the front part of the baking device, a conveying device I extending to a middle bin is arranged at the discharge end of the baking device, a conveying device II extending to a boiling furnace of the baking device is arranged at the discharge end of the middle bin, a conveying device III extending to a ball milling device is arranged at the discharge end of the boiling furnace, and a conveying device IV extending to a finished product bin is arranged at the discharge end of the ball milling device.

Description

technical field [0001] The invention relates to a device and a method for preparing building gypsum from phosphogypsum, belonging to mineral processing equipment. Background technique [0002] Phosphogypsum refers to the solid waste generated when sulfuric acid is used to treat phosphate rock in the production of phosphoric acid, and its main component is calcium sulfate. The main components of phosphogypsum: CaSO4•2H2O, in addition to containing a variety of other impurities. Phosphogypsum is generally in powder form, the appearance is generally grayish white, grayish yellow, light green and other colors, and it also contains organic phosphorus, sulfur and fluorine compounds, the bulk density is 0.733, 0.88g / cm3, PH=1.9, 5.3, and the particle diameter is generally 5~ 15um, its main component is calcium sulfate dihydrate, and its content can generally reach about 70-90%. The secondary components contained in it vary with the origin of phosphate rock, and generally contain r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B11/26
CPCC04B11/26
Inventor 陈加印田博文
Owner 枣庄盛世机械科技有限公司
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