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Zero-discharge double-cylinder rotary carbonization furnace for preparing active carbon

A technology of activated carbon preparation and carbonization furnace, which is applied in the direction of rotary carbonization furnace, coke oven, chemical industry, etc. It can solve the problems of combustible organic matter, short carbon powder raw material travel, waste of resources, etc., to save energy and reduce environmental pollution , the effect of improving work efficiency

Inactive Publication Date: 2011-11-23
FUJIAN LONGYAN LONGNENG FRYASH COMPREHENSIVE UTILIZATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in the above-mentioned prior art, the structure of the carbonization furnace is a single cylinder structure, and the stroke of the carbon powder raw material is relatively short, and there is no reasonable solution to the combustible organic matter produced in the carbonization process, and it is directly discharged into the atmosphere. Cause environmental pollution and waste resources

Method used

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  • Zero-discharge double-cylinder rotary carbonization furnace for preparing active carbon
  • Zero-discharge double-cylinder rotary carbonization furnace for preparing active carbon
  • Zero-discharge double-cylinder rotary carbonization furnace for preparing active carbon

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Embodiment 1

[0038] Such as figure 1 As shown, embodiment 1 of the carbonization furnace of the present invention includes a feeding device 1, a rotatable inner cylinder 2, a rotatable outer cylinder 3, a collecting device 4, a gas-flue gas circuit structure, a heating device 6, and a driving inner cylinder And the driving device (not shown in the figure) that outer cylinder rotates.

[0039] Wherein, the inner cylinder 2 is a closed cylinder with a horizontal axis, and a plurality of lifting plates (not shown in the figure) are arranged on its inner wall; a first opening 503 is provided on the end surface of the head of the inner cylinder 2; A plurality of second openings 504 are provided, all of which are located on the same longitudinal section at the same distance from the rear end of the inner cylinder 2 .

[0040] Feed device 1 is the feed pipe 101 that is communicated with the first opening 503; The bottom end of feed pipe 101 is closed, and the top is provided with feed port 102; ...

Embodiment 2

[0051] image 3 Shown is the system composed of Embodiment 2 of the carbonization furnace of the present invention and the combustion furnace. The difference between this embodiment 2 and embodiment 1 is: the gas-flue gas and the carbon powder raw material are in countercurrent contact, that is, the combustible gas generated by the carbon powder raw material in the inner cylinder 2 under the action of heat is against the flow direction of the carbon powder raw material Enter the combustion device through the first opening 503, the fifth opening 502, and the first gas pipe 501, and generate high-temperature flue gas after burning in the combustion device. The high-temperature flue gas enters the outer cylinder 3 through the second gas pipe 507 , the fourth opening 506 , and the third opening 505 , and enters the inner cylinder 2 through the second opening 504 .

Embodiment 3

[0053] As another solution of the present invention, other parts are similar to Embodiment 1, the difference is that both the inner cylinder and the outer cylinder are in the shape of a truncated cone, the thicker tail of the outer cylinder is adjacent to the thinner head of the inner cylinder, and the outer cylinder is thinner. The head is adjacent to the thicker tail of the inner cylinder.

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Abstract

The invention discloses a zero-discharge double-cylinder rotary carbonization furnace for preparing active carbon, which comprises a rotary internal cylinder, a rotary external cylinder, a heating device positioned in the internal cylinder and a driving device driving the internal and external cylinders to rotate, wherein the external cylinder is sleeved outside the internal cylinder. The carbonization furnace also comprises a fuel gas-flue gas loop structure, wherein the fuel gas-flue gas loop structure conveys fuel gas generated by the carbon powder raw material in the carbonization furnace to a combustion device for combustion and the flue gas generated by the fuel gas can be further used for heating a carbon power raw material. Due to the arrangement of the fuel gas-flue gas loop structure, the combustible gas generated in a carbonization process can be conveyed to a combustion device from the loop structure to combust, the high-temperature flue gas produced by combustion enters the carbonization furnace from the circuit structure to heat and carbonize the carbon powder raw material in the carbonization furnace; and thus, energy is saved, the discharge of a large amount of combustible gas into the air is avoided, and environment pollution is relieved.

Description

technical field [0001] The invention relates to a carbonization furnace used in the manufacture of activated carbon, more specifically, the invention relates to a zero-emission double-cylinder rotary carbonization furnace for preparing activated carbon from fly ash. Background technique [0002] The carbonization process is one of the important processes in the process of producing activated carbon by the gas activation method. In this process, the raw materials are isolated from the air and heated to reduce the non-carbon elements to produce carbonaceous materials suitable for the activation process. It is the main preparation before activation. Base. In the production process of coal-based activated carbon, the carbonization process usually includes two parts: carbonization of materials and carbonization tail gas treatment. [0003] Chinese patent 88221216.8 discloses a multi-screw carbonization furnace for activated carbon by chemical method, which relates to the improve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B1/10C10B49/04C01B31/08
CPCY02P20/10
Inventor 许闽清
Owner FUJIAN LONGYAN LONGNENG FRYASH COMPREHENSIVE UTILIZATION
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