Preparation process of activated carbon

A kind of activated carbon preparation and activated carbon technology, applied in fixed carbonization furnace, inorganic chemistry, non-metallic elements, etc., can solve the problems of uneven heating of raw materials, structural damage, and affecting the quality of finished products, so as to increase the specific surface area and avoid being difficult to be recycled Use and enhance the effect of the hole structure

Inactive Publication Date: 2019-12-24
宁夏凯铭瑞环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of activated carbon preparation process to solve the above-mentioned background technology when the raw material is directly dried at high temperature, causing uneven heating inside the raw material and causing structural damage, affecting the quality of the finished product, and it is difficult to recycle and purify the waste gas, resulting in Environmental pollution caused by gas emissions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Raw material preparation: the main materials in this activated carbon process include: coal material and binder,

[0022] (2) Raw material processing: firstly, the coal material is dedusted by dust removal equipment, and then transported to the pulverizer through the conveyor belt, so that the pulverizer can finely grind the coal material. After the coal material is polished, a certain amount of bonding agent is mixed into it agent, the ratio of binder to coal powder is 65:35,

[0023] (3) Granulation molding: Add the mixed raw materials into the granulator for extrusion granulation, and then sieve,

[0024] (4) Drying and forming: the sieved particles are transported to the dryer through the conveyor belt and after forming the bead, they are dried by hot air. When the bead is formed, it is preheated by the dryer and then dried.

[0025] (5) Carbonization: After the raw materials are dried, they are added to the carbonization furnace, and the tail gas generated by ...

Embodiment 2

[0034] (1) Raw material preparation: the main materials in this activated carbon process include: coal material and binder,

[0035] (2) Raw material processing: firstly, the coal material is dedusted by the dust removal equipment, and then transported to the pulverizer through the conveyor belt, so that the pulverizer can finely grind the coal material. After the coal material is polished, a certain amount of bonding agent is mixed agent, the ratio of binder to coal powder is 65:35,

[0036] (3) Granulation molding: Add the mixed raw materials into the granulator for extrusion granulation, and then sieve,

[0037] (4) Drying and forming: the sieved particles are transported to the dryer through the conveyor belt and then dried by hot air. When the bead is formed, it is preheated by the dryer and then dried.

[0038] (5) Carbonization: After the raw materials are dried, they are added to the carbonization furnace, and the tail gas generated by carbonization can be recovered a...

Embodiment 3

[0047] (1) Raw material preparation: the main materials in this activated carbon process include: coal material and binder,

[0048] (2) Raw material processing: firstly, the coal material is dedusted by the dust removal equipment, and then transported to the pulverizer through the conveyor belt, so that the pulverizer can finely grind the coal material. After the coal material is polished, a certain amount of bonding agent is mixed agent, the ratio of binder to coal powder is 65:35,

[0049] (3) Granulation molding: Add the mixed raw materials into the granulator for extrusion granulation, and then sieve,

[0050] (4) Drying and forming: the sieved particles are transported to the dryer through the conveyor belt and then dried by hot air. When the bead is formed, it is preheated by the dryer and then dried.

[0051] (5) Carbonization: After the raw materials are dried, they are added to the carbonization furnace, and the tail gas generated by carbonization can be recovered a...

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PUM

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Abstract

The invention discloses a preparation process of activated carbon, belonging to the technical field of activated carbon preparation. According to the method, coal and coal tar are mixed to prepare theactivated carbon; and the coal tar slag contains a large amount of incompletely combusted carbon and a small amount of iron, silicon and trace elements. In a process of mixing the coal tar slag withthe coal and performing activation, because the coal tar slag and the coal material have different surface and internal pore diameter structures, the pore structure of an activated carbon finished product is favorably enhanced, and the specific surface area is increased. When raw materials are dried after being formed, a hot air dryer is set at 40-65 DEG C to preheat the formed raw materials, so that the raw materials can slowly absorb heat, the internal structures of the raw materials can be uniformly and fully heated, and the phenomena that the local temperature rise of the raw materials istoo fast, the internal structures of the raw materials are damaged and the quality of activated carbon finished products is influenced when the raw materials are directly heated at high temperature after being formed are avoided.

Description

technical field [0001] The invention relates to the field of activated carbon preparation technology, in particular to an activated carbon preparation technology. Background technique [0002] Activated carbon, activated carbon is a special treatment of carbon, organic raw materials (husks, coal, wood, etc.) are heated in the absence of air to reduce non-carbon components (this process is called carbonization), and then react with gas, The surface is eroded to produce a microporous structure (this process is called activation). Since the activation process is a microscopic process, that is, the surface erosion of a large number of molecular carbides is point-like erosion, so the surface of activated carbon has countless small pores. [0003] The existing activated carbon preparation process uses coal powder as the main raw material, supplemented by a binder that is molded, dried, carbonized, and activated. The formed raw materials are directly heated and dried at high tempe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/336C01B32/33C10B1/04
CPCC01B32/33C01B32/336C10B1/04
Inventor 王宗瑞贺永廷韩进赵宁
Owner 宁夏凯铭瑞环保科技有限公司
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