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Gypsum powder production system and production process thereof

A production system and production process technology, applied in the field of building materials

Pending Publication Date: 2021-06-08
HUANENG POWER INT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] For this reason, the present invention provides a kind of gypsum powder production system and its production process, to solve the above-mentioned problems that existing gypsum powder production process exists

Method used

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  • Gypsum powder production system and production process thereof
  • Gypsum powder production system and production process thereof
  • Gypsum powder production system and production process thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Such as figure 1 A gypsum powder production system shown includes a paddle dryer 1, a fluidized calciner 2, a vertical cooler 3, and a finished product bin 4. After the gypsum is first dried by the paddle dryer 1, it enters the fluid flow calcined in the calciner 2, then enters the vertical cooler 3 for cooling, and finally enters the finished product bin 4 after being pressed;

[0036] A feeding hopper 5 is installed at the feeding port of the fluidized calciner 2, and a grid heat exchanger 6 is installed in the feeding hopper 5, and the grid heat exchanger 6 passes through the vertical cooler 3 pipe connection;

[0037] The production system also includes a flash separator 7 and a calcining steam heat exchanger 8, the flash separator 7 is connected to the paddle dryer 1, the calcining steam heat exchanger 8 is connected to the fluidized calcining The machine 2 is connected; the secondary steam generated during the calcination process of the material in the fluidized...

Embodiment 2

[0048] A kind of gypsum powder production process, described production process adopts the production system described in embodiment 1, and described production process comprises the steps:

[0049] When the gypsum enters the feeding hopper 5, it is preheated by the grid heat exchanger 6, and then enters the paddle dryer 1 for drying; the condensed water generated in the paddle dryer 1 enters the In the drier condensate tank 11 of the production system;

[0050] The dried gypsum enters the fluidized calciner 2 for calcining, and the secondary steam generated during the calcining process of the material in the fluidized calciner 2 returns to the The paddle dryer 1 provides a supplementary drying heat source for the material. In order to make full use of the heat energy, a vacuum pump is used to evacuate the paddle dryer 1 with a vacuum degree of -20Kpa, and the paddle dryer 1 is vacuumed by the flash separator. The material in the inner chamber of the leaf dryer is flashed at ...

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Abstract

The invention discloses a gypsum powder production system and a production process thereof, and relates to the technical field of building materials. The production system comprises a paddle dryer, a fluidization calcining machine, a vertical cooler and a finished product warehouse. Gypsum is dried through the paddle dryer firstly, then enters the fluidization calcining machine to be calcined, then enters the vertical cooler to be cooled, and finally, enters the finished product bin after pressing and grinding. According to the gypsum powder production system, a grating heat exchanger is arranged in a feeding hopper before drying to preheat the gypsum, so that the problems of wall adhesion and blockage in the gypsum feeding process are solved, the risk of scaling in the drying process is effectively reduced, the maintenance rate of system operation can be reduced, the energy consumption of drying equipment can be effectively reduced, the operation cost is reduced, and the operation stability and economy of the system can be improved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a gypsum powder production system and a production process thereof. Background technique [0002] The current mainstream gypsum powder production process mainly includes: material drying→fluidized bed (material) drying→fluidized bed spray cooling→storage in warehouse→packing machine packaging. The existing gypsum powder production process has the following defects: [0003] 1. At present, during the advanced treatment of gypsum, steam is passed between the paddles of the drying part and the inner and outer shells, and the temperature is lower than 150 °C. The gypsum material has wear and corrosion on the blades of the stirring cage and the inner shell, especially the desulfurization gypsum of the power plant contains about 1000ppm of chloride ions, and the blade of the stirring cage at the cold end of the drying part is corroded and worn seriously. Among them, high m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B11/036C04B11/00
CPCC04B11/036C04B11/007C04B11/005
Inventor 刘畅王连生李文界张忠华张厚昌郑全孙忠义孙涛包春斌刘宝灵刘光旭刘平升郭勇郭涛王祖东杨庆志郭晨曦王志刚高山王德龙
Owner HUANENG POWER INT INC
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