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Gypsum calcination system

A calcination and gypsum technology, applied in the field of gypsum treatment, can solve the problems of low thermal efficiency, high production cost, large energy consumption, etc., and achieve the effects of high thermal efficiency and large output

Active Publication Date: 2014-07-23
JIANGSU EFFUL SCIENCE AND TECHNOLOGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention proposes a gypsum calcining system, which solves the problems of low thermal efficiency, high energy consumption, high production cost, high bulk density, high water demand for standard consistency, and poor strength in the prior art

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] see figure 1 , an embodiment of the present invention, a gypsum calcining system, including: raw material bin 1, crusher 2, iron remover 3, belt conveyor 4, vibrating screen 5, transition bin 6, fan 7, electrostatic precipitator 8, pre-drying 9, modified mill 10, silo 11, hoist 12, fluidized bed calciner 13, finished product hoist 14, bag filter 15, finished product bin 16, packaging machine 17, first frequency conversion belt conveyor 18 , the second frequ...

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Abstract

The invention provides a gypsum calcination system which comprises a crushing mechanism, a predrying mechanism and a grinding modification mechanism, wherein the crushing mechanism is used for crushing initial gypsum to form initial gypsum powder, the predrying mechanism is connected with the crushing mechanism and used for drying the initial gypsum powder, and the grinding modification mechanism is connected with the predrying mechanism and used for grinding the long column type dihydrate gypsum crystals in the gypsum powder into short column type particular intermediate gypsum powder, the grinding modification mechanism conveys the intermediate gypsum powder to a calcination mechanism for calcination into final gypsum powder. The gypsum calcination system is large in output, high in thermal efficiency, and can neither be overburnt nor underburnt, and the property of the product is stable.

Description

technical field [0001] The invention relates to the field of gypsum treatment, in particular to a gypsum calcining system. Background technique [0002] With the rapid development of the national economy, my country's demand for electricity is also increasing year by year. At present, most coal-fired power plants in my country use wet desulfurization process, which produces a large amount of desulfurization gypsum. At the same time, my country is also a big producer of citric acid and phosphate fertilizer. Citric acid , The output of phosphate fertilizer ranks among the top in the world, so the amount of industrial by-product gypsum such as citric acid gypsum and phosphogypsum discharged every year in the process of producing citric acid and phosphate fertilizer is also amazing. In addition, my country's natural gypsum reserves are abundant, Hubei, Liaoning, Anhui, Inner Mongolia and other provinces have large gypsum deposits. [0003] At present, there are mainly two ways to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B11/036
Inventor 万建东唐永波曹大民杨丹王彦梅
Owner JIANGSU EFFUL SCIENCE AND TECHNOLOGY CO LTD