Two-stage fluidization and activation integrated furnace and method for preparing activated carbon by physical method

A technology for the preparation of activated carbon and physical methods, applied in chemical instruments and methods, carbon compounds, inorganic chemistry, etc., can solve the problems of inhibiting high-quality activated carbon space, difficult to handle activated tail gas, and low conversion rate of finished products, and achieve stable and uniform quality. Reduce invalid ablation, high conversion effect

Pending Publication Date: 2022-07-05
孙孝德
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] To sum up, the existing activation furnace system has the following defects: strong selectivity to raw materials, high equipment maintenance costs, long activation time, resulting in more invalid activation, and expanding the activated effective pore structure into invalid large ones. hole, resulting in a low conversion rate of finished products; the activation tail gas is difficult to handle, and even requires an external heat source for harmless treatment; because the raw material used in conventional activation is carbonized material, it needs to be cooled directly by water cooling or indirect cooling, resulting in the opening of the raw material during the pyrolysis process The pores are closed again, which increases the difficulty of activation and inhibits the space for preparing high-quality activated carbon

Method used

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  • Two-stage fluidization and activation integrated furnace and method for preparing activated carbon by physical method
  • Two-stage fluidization and activation integrated furnace and method for preparing activated carbon by physical method
  • Two-stage fluidization and activation integrated furnace and method for preparing activated carbon by physical method

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Embodiment 1

[0045] like figure 1 and figure 2As shown, the present invention provides a two-stage fluidization and activation integrated furnace for preparing activated carbon by a physical method. The integrated furnace includes a furnace body 100, and the furnace body 100 includes an upper fluidized zone, a middle fluidized zone and a lower fluidized zone; the upper fluidized zone An upper air electrode box 110 is arranged in the upper part of the area, and a plurality of air caps 111 are arranged in the upper fluidization area, and the air caps 111 are communicated with the upper air electrode box 110; a mixed gas electrode box 130 is arranged in the middle fluidization area, so that the high temperature air and the high temperature pass through. Hot water and steam are mixed, and a plurality of air caps 111 are arranged on the upper part of the mixed gas electrode box 130; the lower fluidization zone is built with an annular gas electrode box 120, the annular gas electrode box 120 is...

Embodiment 2

[0053] The present invention also provides a system for preparing activated carbon by physical method, which includes a two-stage fluidized activation integrated furnace, a cyclone separator 930, an air-gas heat exchanger 400, a first flue gas steam heat exchanger 610, a second flue gas steam Heat exchanger 620, sub-cylinder 300, waste heat steam boiler 700, first gas mixer 310 and second gas mixer 320; the gas outlet of the upper fluidization zone of the activation integrated furnace passes through the cyclone separator 930 and the air-gas heat exchanger 400 connection; the air-gas heat exchanger 400 is connected with the first gas mixer 310 and the incinerator 500 respectively; the first flue gas steam heat exchanger 610 is respectively the second flue gas steam heat exchanger 620, the sub-cylinder 300 and the air jacket 122 is connected; the second flue gas steam heat exchanger 620 is respectively connected with the sub-cylinder 300, the waste heat steam boiler 700, and the ...

Embodiment 3

[0058] like image 3 As shown, the present invention also provides a system for preparing activated carbon by a physical method, the system includes a two-stage fluidized activation integrated furnace, a cyclone separator 930, an air-gas heat exchanger 400, a first gas-steam heat exchanger 980, a second Gas steam heat exchanger 970, sub-cylinder 300, waste heat steam boiler 700, first gas mixer 310, gas bag filter 901, gas indirect cooling tower 940, low temperature gas storage tank 950; The gas outlet is connected to the air-gas heat exchanger 400 through the cyclone separator 930; the air-gas heat exchanger 400 is connected to the first gas mixer 310 and the first gas-steam heat exchanger 980 respectively; the first gas-steam heat exchanger 980 They are respectively connected with the waste heat steam boiler 700 , the sub-cylinder 300 and the mixed gas pole box 130 ; the waste heat steam boiler 700 is respectively connected with the second gas-steam heat exchanger 970 and th...

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Abstract

The invention discloses a two-stage fluidization and activation integrated furnace and method for preparing activated carbon through a physical method. The integrated furnace comprises a furnace body, and the furnace body comprises an upper fluidization area, a middle fluidization area and a lower fluidization area; an upper air electrode box is arranged at the upper part of the upper fluidization area, and a plurality of air caps communicated with the upper air electrode box are arranged in the upper fluidization area; a mixed gas electrode box is arranged in the middle fluidization area, a plurality of air caps are arranged on the upper portion of the mixed gas electrode box, an annular gas electrode box is arranged in the bottom in the furnace, and a gas outlet is formed in the upper portion of the annular gas electrode box and connected with the annular gas electrode box. According to the two-stage fluidization and activation integrated furnace for preparing the activated carbon through the physical method, fixed carbon in materials can be better protected, and invalid ablation of the fixed carbon is reduced. By utilizing the advantages of the fluidized bed, the activation integrated furnace disclosed by the invention has the advantages of high mass and heat transfer speed, uniform reaction, high activator utilization efficiency and energy conservation, the material temperature in the reaction material layer can be controlled, the yield of activated carbon is improved, and high-quality activated carbon can be prepared.

Description

technical field [0001] The invention relates to the technical field of activated carbon activation and regeneration in an activation furnace, in particular to a two-stage fluidized activation integrated furnace and a method for preparing activated carbon by a physical method. Background technique [0002] Among the existing industrialized devices for preparing activated carbon, there are the following types: 1. Sleep furnace: It is difficult to start and stop the Sleep furnace, the activation period is long, and the use efficiency of the activator is low. Take the water treatment carbon iodine adsorption value of 1000 as an example , the residence time of the material in and out is more than 48h, and the conversion rate of fixed carbon in the material is less than or equal to 50%; 2. Rotary furnace: decompose to produce primary activated carbon products, and the output of activated carbon is low. Internal heating type, due to uneven gas contact, low conversion rate, poor qua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/39C01B32/336
CPCC01B32/39C01B32/336Y02P20/10
Inventor 孙孝德范玉佼
Owner 孙孝德
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