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Flexibly-adjustable high-activity metakaolin preparation system and method

A technology of metakaolin and preparation system, which is applied to the preparation system and preparation field of high-activity metakaolin, can solve the problems of difficult product quality control, small processing capacity, high energy consumption, avoid direct radiation contact with kaolin, reduce heat consumption, and improve finished products. Active Satisfaction Effect

Active Publication Date: 2021-06-11
TIANJIN CEMENT IND DESIGN & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The object of the present invention is to provide a kind of metakaolin product with full consideration to the color requirements of different industries to produce high activity metakaolin in order to solve the technical problems existing in the known technology , a flexible and adjustable high-activity metakaolin preparation system and preparation method that solve the problems of high energy consumption, small processing capacity, and difficult control of product quality in the metakaolin preparation system at the same time

Method used

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  • Flexibly-adjustable high-activity metakaolin preparation system and method

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Embodiment 1

[0042] In this embodiment, the suspension preheating system includes the first, second, third, fourth and fifth cyclone preheaters, high-efficiency material spreading devices and connecting pipelines, etc.; the calciner system includes high-efficiency material spreading devices, hot air inlet pipelines, etc. , preheating furnace, the first burner arranged in the cone of the preheating furnace, the reforming furnace, the second burner arranged in the cone of the reforming furnace, the third burner in the middle of the reforming furnace and the flue gas outlet pipe, etc. ; The first cooling system includes the sixth cyclone cooler, high-efficiency spreading device and connecting pipelines, etc.; the second cooling system includes the seventh cyclone cooler, the eighth cyclone cooler, high-efficiency spreading device and connecting pipelines, etc.;

[0043] Such as figure 1 As shown, the kaolin raw ore enters the grinding system after the pretreatment process, and the raw meal po...

Embodiment 2

[0046] In this embodiment, the suspension preheating system includes the first, second, third, fourth and fifth cyclone preheaters, high-efficiency material spreading devices and connecting pipelines, etc.; the calciner system includes high-efficiency material spreading devices, hot air inlet pipelines, etc. , preheating furnace, the first burner arranged in the cone of the preheating furnace, the reforming furnace, the second burner arranged in the cone of the reforming furnace, the third burner in the middle of the reforming furnace and the flue gas outlet pipe, etc. ; The first cooling system includes the sixth cyclone cooler, high-efficiency spreading device and connecting pipelines, etc.; the second cooling system includes the seventh cyclone cooler, the eighth cyclone cooler, high-efficiency spreading device and connecting pipelines, etc.;

[0047] Such as figure 1 As shown, the kaolin raw ore enters the grinding system after the pretreatment process, and the raw meal po...

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Abstract

The invention belongs to the field of high-activity metakaolin preparation, and particularly relates to a flexibly-adjustable high-activity metakaolin preparation system and method. The flexibly-adjustable high-activity metakaolin preparation system comprises a suspension preheating system, wherein the suspension preheating system comprises multiple stages of cyclone preheaters, raw powder is subjected to preheating and gas-solid separation in the cyclone preheaters, and the raw powder having been subjected to multiple times of heat exchange and gas-solid separation enters a calcining furnace system from the penultimate-stage cyclone preheater of the suspension preheating system. According to the flexibly-adjustable high-activity metakaolin preparation system and method, the requirements of different industries for the color of a finished metakaolin product are fully considered, high-activity metakaolin is produced, and meanwhile the problems that a conventional metakaolin preparation system is high in energy consumption, small in processing capacity, difficult in product quality control and the like are solved.

Description

technical field [0001] The invention belongs to the field of high-activity metakaolin preparation, and in particular relates to a flexible and adjustable high-activity metakaolin preparation system and a preparation method. Background technique [0002] Existing techniques and drawbacks: [0003] my country is the country with the largest kaolin resources. Kaolin is mainly composed of kaolinite, accompanied by quartz, illite, goethite, gibbsite, calcite and other small amounts of minerals. Kaolin (Al 2 o 3 2SiO2 2 2H 2 O, AS 2 h 2 ) can be dehydrated at an appropriate temperature (600-900°C) to generate metakaolin (MK for short). Kaolin belongs to the layered silicate structure, and the layers are combined by van der Waals bonds, and the OH- ions are firmly combined in it. When kaolin is heated in the air, several structural changes will occur. When heated to about 600°C, the layered structure of kaolin will be destroyed due to dehydration, forming a transition phase...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/40F27B17/00F27D9/00F27D19/00
CPCC01B33/40F27B17/00F27D9/00F27D19/00F27D2009/0072F27D2019/0003F27D2019/0056
Inventor 代中元隋同波彭学平马娇媚陈昌华赵亮王彬
Owner TIANJIN CEMENT IND DESIGN & RES INST
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