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Carbonization system using zero-discharge dual-drum rotating carbonization furnace for activated carbon preparation

A technology of activated carbon preparation and carbonization furnace, which is used in rotary carbonization furnaces, coke ovens, inorganic chemistry, etc., can solve problems such as environmental pollution and resource waste, and achieve the effects of reducing environmental pollution, saving energy, and extending travel and heating time.

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

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Problems solved by technology

Its discharge into the atmosphere not only causes environmental pollution, but also causes waste of resources

Method used

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  • Carbonization system using zero-discharge dual-drum rotating carbonization furnace for activated carbon preparation
  • Carbonization system using zero-discharge dual-drum rotating carbonization furnace for activated carbon preparation
  • Carbonization system using zero-discharge dual-drum rotating carbonization furnace for activated carbon preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as figure 1 As shown, Embodiment 1 of the carbonization system of the present invention includes a carbonization furnace and a combustion device such as a combustion furnace 7 . The carbonization furnace includes a feeding device 1, a rotatable inner cylinder 2, a rotatable outer cylinder 3, a collection device 4, a gas-flue gas circuit structure 5, a heating device 6, and a driving device for driving the rotation of the inner cylinder and the outer cylinder ( not shown in the figure).

[0042] 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 .

[0043] Feed device 1 is the feed pipe 101 that i...

Embodiment 2

[0053] figure 2 Shown is Embodiment 2 of the carbonization system of the present invention, which differs from Embodiment 1 in that: gas-flue gas and carbon powder raw material are in countercurrent contact, that is, the flammability of the carbon powder raw material in the inner cylinder 2 under the action of heat The gas enters the combustion furnace 7 through the first opening 503, the fifth opening 502, and the first gas pipeline 501 against the flow direction of the carbon powder raw material, and generates high-temperature flue gas after being burned in the combustion furnace 7. 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 .

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Abstract

The invention discloses a carbonization system using a zero-discharge dual-drum rotating carbonization furnace for activated carbon preparation. The carbonization system comprises a combustion device, the dual-drum rotating carbonization furnace and a fuel gas-flue gas loop structure, wherein the dual-drum rotating carbonization furnace comprises an inner drum, an outer drum, a heating device and a driving device; and the fuel gas-flue gas loop structure is used for conveying the fuel gas generated by heating a carbon powder raw material in the carbonization furnace into the combustion device for combustion and further using the flue gas generated by the fuel gas for heating the carbon powder raw material, and the fuel gas-flue gas loop structure comprises multiple openings formed on the carbonization furnace and a gas pipeline connected between the carbonization furnace and the combustion device. Due to the installation of the fuel gas-flue gas loop structure, the flammable gas generated in the carbonization process enters the combustion device through the loop structure for combustion, and the high-temperature flue gas generated during combustion enters the carbonization furnace through the loop structure for heating and carbonizing the carbon powder raw material in the carbonization furnace, thereby saving energy, preventing a big amount of flammable gas from being discharged into the atmosphere and reducing environmental pollution.

Description

technical field [0001] The invention relates to the field of activated carbon production, more specifically, the invention relates to a carbonization system using a zero-emission double-cylinder rotary carbonization furnace in the preparation of activated carbon. 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 improvemen...

Claims

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Application Information

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IPC IPC(8): C10B1/10C10B49/04C01B31/10C01B32/336
CPCY02P20/10
Inventor 许闽清
Owner FUJIAN LONGYAN LONGNENG FRYASH COMPREHENSIVE UTILIZATION
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