A processing system for the integrated production of α-hemihydrate gypsum with rotary autoclaving and drying

A hemihydrate gypsum and processing system technology, applied in the field of industrial raw material production and processing systems, can solve the problems of large waste of steam, difficulty in ensuring product quality, easy blockage of pipelines, etc., to achieve improved production capacity, improved recovery rate, and simple structure Effect

Active Publication Date: 2017-10-10
HUBEI JINLU ENERGY SAVING LTD CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heat transfer efficiency of this method is low, the waste of steam is large during pressure relief and drying and exhaust, the dust is not easy to collect, the pipeline is easy to block, and the temperature fluctuates greatly during pressure relief, and the product quality is difficult to guarantee.

Method used

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  • A processing system for the integrated production of α-hemihydrate gypsum with rotary autoclaving and drying
  • A processing system for the integrated production of α-hemihydrate gypsum with rotary autoclaving and drying
  • A processing system for the integrated production of α-hemihydrate gypsum with rotary autoclaving and drying

Examples

Experimental program
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example 1

[0038] Example 1: Scheme one of the present invention, see figure 1 , it includes a special rotary autoclave drying kettle 104 and two steam filter dust collectors A, B 106 and 110, as well as saturated steam boiler 128, superheated steam boiler 132, air compressor 120, gas storage tank 119, powder Silo 124, sump 133; described rotary autoclave drying kettle 104, see image 3 , it has a horizontal cylindrical housing 208, equipped with a rotating supporting wheel set 222 and a rotating drive mechanism 226, especially: the right end of the housing 208 is provided with an air intake main pipe 213, and the left end is provided with a discharge air pipe 206. The main pipe is covered with a rotary joint A214, and the rotary joint A214 is equipped with an air intake main pipe 220 and a condensed water discharge pipe A216; the condensed water discharge pipe A216 is connected to the sump 133 for recycling. A material tank 209 is installed in the housing 208 through a bracket. A steam...

example 2

[0059] Example 2: see figure 2 , the second solution of the present invention is to improve and improve the solution of example 1, to recycle the steam in the system, so as to realize energy saving and consumption reduction. Its basic structure is the same as Example 1, the difference is that a simple steam boiler is used to provide saturated steam, the superheated steam boiler 132 is removed, and a superheated steam generator 135 is added in the system to provide a superheated steam source for the rotary autoclave drying kettle 104, and an additional steam boiler is added. The compressor 134 provides the source of circulating steam for the superheated steam generator, and the inlet end of the supercharger 134 is connected to the purification discharge port of the steam filter dust collector 110 through the air return pipe A and the valve 109 for steam recovery; and the superheated steam generator 135 The saturated steam boiler 128 is connected through the air supply pipe 136...

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Abstract

The invention relates to an industrial raw material production and processing system, which is a processing system for the integrated production of α-hemihydrate gypsum by rotary autoclaving and drying, and is characterized in that it includes a special rotary autoclaving drying kettle and a steam filter dust collector, And saturated steam source, superheated steam source, compressed air steam source, powder silo, water collection tank; the inlet end of the drying kettle is connected with saturated steam pipe, superheated steam pipe, compressed air pipe correspondingly connected with saturated steam source, superheated steam source, compressed air source; the outer end of the discharge air pipe of the drying kettle is installed with a gas material discharge pipe through the rotary joint B, and the outer end of the gas material discharge pipe is connected to the steam filter dust collector, and the steam discharge valve is located on the gas material discharge pipe The inner fork is connected with a powder discharge pipe, equipped with a valve and connected to the powder silo through the conveying pipe A; the invention has a compact structure, greatly reduces equipment investment, simplifies the production process, has high production efficiency and good product quality, and is mainly used for Production of α-type hemihydrate gypsum.

Description

technical field [0001] The invention relates to a production and processing system for industrial raw materials, in particular to a processing system for the integrated production of α-hemihydrate gypsum by rotary autoclaving and drying. Background technique [0002] α-type hemihydrate gypsum is a gypsum gelling material with dense crystal structure and high strength after hydration. α-type hemihydrate gypsum is slowly crystallized by heating in a saturated water vapor atmosphere or in some salt solutions. At present, the preparation methods of α-type hemihydrate gypsum mainly include the following types: autoclave method, hydrothermal method, conventional Pressure salt solution method, autoclaving method, etc. [0003] 1. The autoclave method is the saturated steam autoclaving method, which is to place natural gypsum (broken into blocks, granular) or industrial by-product gypsum (pressed into blocks, granular) in a horizontal or vertical autoclave, and put it into Saturat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B11/032
CPCC04B11/032
Inventor 李应锐郭泰民王久高杨年龙龚闽华
Owner HUBEI JINLU ENERGY SAVING LTD CO
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