Viscous fine mineral powder fluidization reactor

A reactor and fluidization technology, applied in the direction of chemical instruments and methods, chemical/physical processes, etc., can solve the problem of insufficient surface renewal, unfavorable viscous fine mineral powder fluidization quality, improvement of reactor efficiency, air flow shear Low cutting force and other issues, to achieve the effect of low operation and maintenance costs, avoid adhesion, and improve efficiency

Inactive Publication Date: 2014-04-30
CHONGQING UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The air flow in these classic fluidized bed reactors is distributed through the porous distribution plate, the purpose is to make the air flow upward evenly on different sections of the fluidized bed, the shear force of the air flow is not high, and the mixing and collision be

Method used

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  • Viscous fine mineral powder fluidization reactor
  • Viscous fine mineral powder fluidization reactor

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[0016] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0017] See figure 1 , The viscous fine mineral powder fluidized reactor of the present invention includes a gas flow distribution chamber 1, a reactor main body 2 and a furnace top 3, and the upper part of the reactor main body 2 is connected with the furnace top 3. The outer wall of the gas flow distribution chamber 1 is provided with a reaction gas inlet 4 that enters the gas tangentially. The lower end of the outer wall of the reactor body is provided with an inlet 6 for fine ore powder and recycling material. The roof 3 is equipped with an outlet 7 for gas and unreacted fine powder. It is discharged through the outlet; the gas flow distribution chamber and the reactor main body are communicated through a gas distributor. The gas distributor 5 is a cone with the top facing down, and the cone tip angle is 45°-60°; a number of uniform flow holes are...

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Abstract

The invention discloses a viscous fine mineral powder fluidization reactor which comprises an airflow distributing room, a reactor main body and a roof, wherein a reactant gas inlet allowing airflow to enter in the tangential direction is formed in the outer wall of the airflow distributing room, a fine mineral powder and circulating recycled material inlet is formed in the lower end of the outer wall of the main body of the reactor, an outlet is formed in the top of the roof, and the airflow distributing room is communicated with the reactor main body through a gas distributor. The gas distributor adopts a conical drum with a tip facing downward, and the conic apex angle is 45 to 60 degrees; a plurality of uniform flow small holes are evenly distributed in the wall of the conical drum gas distributor, each uniform flow small hole is tangent to the outer wall of the conical drum gas distributor, and the tangential directions of the uniform flow small holes are the same with the tangential directions of the reactant gas inlet. The diameters of the uniform small holes are 1 to 2 mm, and the total area of the uniform small holes is 1.5 to 5 percent of the inner surface area of the conical drum gas distributor. The viscous fine mineral powder fluidization reactor provided by the invention does not require additional elements, is free from limitation of the temperature of the reactor, is low in energy consumption, and enables viscous fine mineral powder to be fluidized uniformly.

Description

technical field [0001] The invention relates to particle fluidization technology, in particular to a viscous fine mineral powder fluidization reactor. The reactor utilizes airflow rotating shear force and frictional collision between particles to break the viscous fine mineral powder particle agglomeration and make it fluidized . Background technique [0002] In the extraction and separation process of mineral resources, the concentrate powder obtained after removing impurities and harmful elements has a finer particle size, such as domestic concentrate powder, ultra-fine artificial rutile, etc. Due to the strong inter-particle interaction of fine particles, mutual adhesion and coalescence occur, and when they are fluidized, channeling, throttling or agglomeration are easily formed, resulting in reduced gas-solid contact efficiency and poor reaction kinetics. Insufficient conditions affect the reaction process and reactor efficiency at the gas-solid interface. [0003] For...

Claims

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Application Information

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IPC IPC(8): B01J8/24
Inventor 温良英梁海龙尹国亮白晨光徐建鲁峰钟泓
Owner CHONGQING UNIV
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