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Powdery active carbon regeneration system and powdery active carbon preparation method

A technology of powder activated carbon and regeneration system, applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problems of powder carbon pore distribution change, large energy loss and other problems, achieve small gas dust volume and high heat utilization efficiency , the effect of high mechanical strength

Active Publication Date: 2018-03-23
BEIJING GUODIAN FUTONG SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology must add a certain amount of binder in the process of extruding powdered carbon, which will cause changes in the pore distribution of powdered carbon.
In addition, this solution needs to add a certain amount of water before extruding, but it will be dried later, so the energy consumption loss in the processing process is large

Method used

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  • Powdery active carbon regeneration system and powdery active carbon preparation method
  • Powdery active carbon regeneration system and powdery active carbon preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Taking the waste activated carbon produced in a sewage treatment plant in Beijing as an example, the water content of the powdered carbon after passing through the plate and frame filter press ranges from 35% to 40%.

[0034] like figure 1 As mentioned above, the working process of the powdered activated carbon regeneration system is: after the materials are processed by the crusher and the agitator, the powdered carbon is added to the granulator through the conveyor belt for granulation; the prepared powder particles are passed through the drum sieve, and the undersize is Put it into the agitator and re-granulate; the sieved powder is put into the regenerative heating furnace connected with the steam boiler, and after drying, regeneration and activation treatment, the regenerated powdered activated carbon can be obtained; the gas generated by the activation is burned after heat storage , directly discharged after purification.

Embodiment 2

[0036] The method for preparing powdered activated carbon using the above-mentioned powdered activated carbon regeneration system includes:

[0037] Step 1: After crushing and stirring the powdered charcoal with a moisture content of 40%, adjust the drum granulator to rotate at 150r / min and incline at 3°C;

[0038] Step 2: Put the powder prepared in step 1 through the drum sieve and enter the rounding machine; and add the charcoal powder under the sieve to the crusher again, and re-granulate;

[0039] Step 3: Put the powder prepared in step 2 into the regenerative heating furnace, and undergo drying, carbonization and activation treatment. The drying temperature is 100°C, the drying time is 2h, the carbonization temperature is 700°C, and the carbonization time is 1h , the activation temperature is 850°C, and the activation time is 2h, and the regenerated activated carbon is obtained.

[0040] Step 4: The gas components generated after activation are treated by a regenerative ...

Embodiment 3

[0043] The method for preparing powdered activated carbon using the above-mentioned powdered activated carbon regeneration system includes:

[0044] Step 1: After crushing and stirring the powdered charcoal with a water content of 40%, adjust the drum granulator to rotate at 120r / min and incline at 5°C;

[0045] Step 2: Put the powder prepared in step 1 through the drum sieve and enter the rounding machine; and add the charcoal powder under the sieve to the crusher again, and re-granulate;

[0046] Step 3: Put the powder prepared in step 2 into the regenerative heating furnace, and undergo drying, carbonization and activation treatment, wherein the drying temperature is 150°C, the drying time is 1h, the carbonization temperature is 700°C, and the carbonization time is 1h , the activation temperature is 850°C, the activation time is 1h, and the regenerated activated carbon is obtained.

[0047] Step 4: The gas components generated after activation are treated by a regenerative...

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Abstract

The invention discloses a powdery active carbon regeneration system and a powdery active carbon preparation method, and belongs to the field of waste treatment. The powdery active carbon regenerationsystem comprises a roller granulating device, a regeneration heating furnace and a gas burning device which are sequentially connected. The system and the method have the advantages of realization ofthe regeneration treatment and cycle use of powdery active carbon, reduction of the pollution to the environment, reduction of the use cost of active carbon, simple process flow, and no secondary pollution in the production process.

Description

technical field [0001] The invention relates to the field of waste treatment, in particular to a powder activated carbon regeneration system and a preparation method. Background technique [0002] Powdered activated carbon is widely used in chemical production, sewage treatment, pharmaceutical refining, food decolorization and other fields, and produces a large amount of waste carbon mud. Due to the high difficulty of regeneration, it is usually discarded in traditional processes, causing pollution to the environment and occupying a large area of ​​land. Activated carbon regeneration can reduce the use of fresh carbon powder and reduce the cost of wastewater treatment. The regeneration of activated carbon is to take various methods to remove adsorbed harmful substances from the surface of activated carbon, so that the adsorbed substances can be detached or decomposed. Based on regeneration conditions and desorption reaction principles, various regeneration technologies have...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/36C01B32/384
Inventor 吴鹏张旭辉滕济林李若征林红张云鹏陈赞歌李星伟
Owner BEIJING GUODIAN FUTONG SCI & TECH DEV
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