Method for continuously producing active magnesium oxide and recovering carbon dioxide by using microwave heating magnesite

A technology of activated magnesium oxide and carbon dioxide, applied in chemical instruments and methods, products, inorganic chemistry, etc., can solve the problems of low activation, slow heating speed, serious crystallization of magnesium oxide, etc., and achieve good airtightness and high temperature control accuracy , high activity effect

Active Publication Date: 2018-07-06
辽宁瀚海工业机电设备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, the heating method is mainly the body conduction heating method, the heating speed is slow, the temperature is high, the crystallization of magnesium oxide is serious, and the activation is low.

Method used

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  • Method for continuously producing active magnesium oxide and recovering carbon dioxide by using microwave heating magnesite
  • Method for continuously producing active magnesium oxide and recovering carbon dioxide by using microwave heating magnesite

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Embodiment Construction

[0045] Such as figure 1 As shown, the present invention utilizes microwave heating magnesite to continuously produce active magnesia and reclaim the production device of carbon dioxide, consists of a weighing distribution bin 1, a preheating chamber 2, a feeding vacuum chamber 3, an exhaust chamber 4, and a discharging vacuum chamber 5 , cooling collection chamber 6, air heat exchanger 8, vacuum pump 9, cooling device 10, blowing cooling system 12, air-water heat exchanger 13, carbon dioxide collection system 14, various sensors and programmable controller PLC and various execution Institutional composition, the specific structure is as follows:

[0046] The top of the preheating chamber 2 is provided with a weighing and distributing bin 1, the bottom of the preheating chamber 2 communicates with the feeding vacuum chamber 3 through the feeding vacuum chamber entrance door 18, and the bottom of the feeding vacuum chamber 3 connects with the exhaust chamber through the feeding ...

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Abstract

The invention relates to the field of new materials and metallurgy, in particular to a method for continuously producing active magnesium oxide and recovering carbon dioxide by using microwave heatingmagnesite. The microwave is used for heating magnesite particles. Since the microwave heating is from the inside to the surface, the calcination temperature is lower than the fuel calcination, high-activity magnesium oxide can be produced, and CO2 discharged in the production process is collected. When a process of discharging CO2 is basically completed, the magnesite is decomposed into high-activity magnesium oxide and high-purity CO2. By adopting the method of heating the magnesite particles by microwave energy and extracting the CO2 gas, pollution caused by fuel combustion is avoided, theCO2 discharged during the processing is recovered, realizing basically zero emission.

Description

technical field [0001] The invention relates to the fields of new materials and metallurgy, in particular to a method for continuously producing active magnesium oxide and recovering carbon dioxide by heating magnesite with microwaves. Background technique [0002] Traditional magnesite production of magnesia mostly uses coal, heavy oil and gas as fuel for calcination, and the CO produced by fuel combustion 2 and CO emitted by magnesite 2 are released into the atmosphere, resulting in CO 2 emissions of pollution, while CO 2 The large amount of emissions is the main cause of the increase in the temperature of the earth's surface. In addition, open calcination loses a lot of heat energy through the furnace wall and the opening of the furnace, resulting in a large amount of energy waste. [0003] CO 2 It has a wide range of uses and can be widely used in food processing, machinery manufacturing, chemical raw materials, fine chemicals, oil field mining and other industries....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B2/10C01B32/50
CPCC01P2006/80C04B2/102Y02P20/141
Inventor 李斌李建
Owner 辽宁瀚海工业机电设备有限公司
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