CN210313550U

CN210313550U - Device for preventing furnace from being formed in activated carbon production process

Info

Publication number: CN210313550U
Application number: CN201921175146.4U
Authority: CN
Inventors: 徐卫星
Original assignee: Hangzhou Xingyu Carbon Technology Green Co ltd
Current assignee: Hangzhou Xingyu Carbon Technology Green Co ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-04-14
Anticipated expiration: 2029-07-24

Abstract

The utility model discloses a device for preventing the furnace from being formed in the production process of activated carbon, which comprises a fixed activation furnace (10), wherein the activation furnace (10) is provided with a feed inlet and air inlet, the activation furnace (10) is also connected with a pulse air pipe (13) facing the bottom of a hearth of the activation furnace (10), and the pulse air pipe (13) is connected with a pulse gas generator; along the length direction of the activation furnace (10), the air inlet pipes (12) and the pulse air pipes (13) are alternately arranged. The utility model has the characteristics of have concurrently and prevent knot stove and low in production cost, the utility model has the advantages of simple structure, equipment stability and security are good, and product quality is stable and higher.

Description

Device for preventing furnace from being formed in activated carbon production process

Technical Field

The utility model relates to an activated carbon activation furnace structure, in particular to a device for preventing the furnace from being formed in the activated carbon production process.

Background

Activated carbon is an adsorbent widely used, and is generally prepared from solid carbon substances such as coal, wood, fruit shells and the like through carbonization, activation and other processes. Wherein, the activation is oxidation activation by air, carbon dioxide, water vapor and other gases under the temperature of 400-900 ℃, and the purpose is to generate micro pores on the activated carbon. The micro pores are the key of the adsorption performance of the activated carbon, for example, when the activated carbon is used for preparing nitrogen, only the pores with proper sizes can capture oxygen molecules and remove nitrogen molecules, so that the aim of nitrogen-oxygen separation is fulfilled. Therefore, the influence of the activation process on the activated carbon is very large.

Activation furnaces can be divided into two basic categories. The activation furnace with the fixed hearth has the advantages of simple structure and good sealing property. However, in order to prevent the intermediate material from accumulating in the hearth to cause the phenomena of uneven oxidation, adhesion to the inner wall of the hearth and the like, the side door needs to be opened and turned once from time to time. During the stirring process, the phenomenon of burning empty caused by the fact that a large amount of air enters a hearth to generate incandescence needs to be prevented, and therefore the action needs to be rapid. Therefore, the fixed activation furnace has high requirements on personnel and is easy to cause unstable product quality.

The other is a rotary activation furnace. The activation furnace utilizes the rotary hearth to continuously turn over the intermediate material, and the activation effect is good. However, the rotary activation furnace has a complicated structure. The whole furnace body rotates, so the structural strength requirement is high. Moreover, due to the rotation, the connection of the hearth and the external pipeline is very complicated, and the overall sealing stability is reduced.

Therefore, the problem to be solved by those skilled in the art is to design an activation furnace device with the advantages of furnace resistance and low production cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a device for preventing the activated carbon production in-process from becoming burnt. The utility model has the characteristics of have concurrently and prevent knot stove and low in production cost, the utility model has the advantages of simple structure, equipment stability and security are good, and product quality is stable and higher.

The technical scheme of the utility model: a device for preventing furnace caking in the production process of activated carbon comprises a fixed activation furnace, wherein a feed inlet and an air inlet pipe are arranged on the activation furnace, the activation furnace is also connected with a pulse air pipe facing the bottom of a hearth of the activation furnace, and the pulse air pipe is connected with a pulse gas generator; along the length direction of the activation furnace, the air inlet pipes and the pulse air pipes are alternately arranged.

In the device for preventing the furnace from being formed in the activated carbon production process, the pulse gas generator is an air cannon or an electric control valve.

In the device for preventing the furnace from being formed in the activated carbon production process, the pulse air pipe is positioned at the lower part of the activation furnace, and the orientation of the pulse air pipe is tangential to the hearth wall.

In the device for preventing the furnace from being formed in the production process of the activated carbon, the end part of the pulse air pipe is internally provided with the conical flow guide pipe and the flow guide block, the flow guide block is positioned in the flow guide pipe, and the bus slope of the flow guide pipe is smaller than that of the flow guide block.

In the device for preventing the furnace from being formed in the production process of the activated carbon, the guide pipe and the guide block are connected with the fixing pieces which are distributed in an annular mode, and the fixing pieces are matched with the inner wall of the pulse air pipe.

In the device for preventing the furnace from being formed in the activated carbon production process, the welding ring is fixed on the end face of the pulse air pipe, and the fixing piece is arranged on the inner side of the welding ring.

Compared with the prior art, the utility model discloses utilize the pulse trachea, in the activation process, to furnace, especially furnace bottom, accumulational centre material blows and turns over, changes its state of piling up uninterruptedly to prevent to pile the insufficient or adhesion of centre material oxidation below at the furnace inner wall, guaranteed that the activation is effectual. Simultaneously, owing to be fixed activation furnace, the utility model has the advantages of simple structure, equipment cost is low to with the stability of being connected of outside pipeline and leakproofness all better, the security of equipment is higher.

Further, the utility model discloses a structure of honeycomb duct and water conservancy diversion piece makes the interior air current of single pulse trachea divide into inside and outside two strands, utilizes the generating line slope difference, makes the interior and outside two strand air current cross production disorder flows after receiving the direction, promotes the effect that turns.

Furthermore, the flow guide pipe and the flow guide block are welded together through the fixing piece, so that the structural strength is ensured; the whole diversion structure is fixed on the end face of the pulse air pipe by the welding ring, so that the welding in the pipe is avoided, and the production and the manufacture are convenient.

To sum up, the utility model has the characteristics of have concurrently and prevent knot stove and low in production cost, the utility model has the advantages of simple structure, equipment stability and security are good, and product quality is stable and higher.

Drawings

Fig. 1 is a schematic front view of the present invention;

fig. 2 is a side schematic view of the present invention;

FIG. 3 is a schematic view of the structure of the impulse trachea;

fig. 4 is a schematic view of a draft tube and a deflector block.

Reference numerals: 10-activation furnace, 12-air inlet pipe, 13-pulse air pipe, 14-draft tube, 15-flow guide block, 16-fixing piece and 17-welding ring.

Detailed Description

The present invention will be further described with reference to the following examples, which are not intended as a limitation to the present invention.

Example (b): a device for preventing activated carbon from being sintered in the production process comprises a fixed activation furnace 10, wherein a feed inlet and an air inlet pipe 12 are arranged on the activation furnace 10. The activation furnace 10 is also connected with a pulse air pipe 13 facing the bottom of the hearth of the activation furnace 10, and the pulse air pipe 13 is connected with a pulse gas generator; along the length direction of the activation furnace 10, the air inlet pipes 12 and the pulse air pipes 13 are alternately arranged. The pulse gas generator is an air cannon or an electric control valve, the air cannon can adopt a commercially available model KQP-B-75, and the specific capacity is selected according to production requirements.

The pulse air pipe 13 is positioned at the lower part of the activation furnace 10, and the orientation of the pulse air pipe 13 is tangential to the hearth wall. A conical guide pipe 14 and a conical guide block 15 are arranged in the end part of the pulse air pipe 13, the guide block 15 is positioned in the guide pipe 14, and the slope of the generatrix of the guide pipe 14 is smaller than that of the generatrix of the guide block 15. A fixing piece 16 which is distributed annularly is connected between the draft tube 14 and the draft block 15, and the fixing piece 16 is matched with the inner wall of the pulse air tube 13. The end face of the pulse air tube 13 is fixed with a welding ring 17, and the fixing piece 16 is arranged on the inner side of the welding ring 17.

The working principle is as follows:

the utility model discloses activation furnace's furnace body is the same with conventional furnace body, mainly includes shell, heat preservation and furnace three-layer, and the heater setting is between heat preservation and furnace or directly sets up in furnace. The utility model discloses the during operation is earlier to the interior material of advancing of furnace body, then utilizes the leading-in gases such as vapor of intake pipe 12 or carbon dioxide. And (3) performing oxidation activation at the temperature of 900 ℃. In the activation process, an air cannon or an electric control valve is used for intermittently blowing air into the pulse air pipe 13, and the accumulated intermediate material is turned over to prevent the furnace from being formed.

The end of the pulse air pipe 13 is provided with a guide pipe 14 and a guide block 15. The draft tube 14 divides the gas into two parts, the gas outside the draft tube 14 is guided by the generatrix of the draft tube 14, and the gas inside the draft tube 14 is guided by the generatrix of the guide block 15. Because the generatrix slope of the flow guide block 15 is larger than that of the flow guide pipe 14, the inner air flow and the outer air flow are converged to form turbulent flow, and the turning effect is improved.

Claims

1. The utility model provides a device for preventing become stove in active carbon production process, is equipped with feed inlet and intake pipe (12), its characterized in that including fixed activation furnace (10) on activation furnace (10): the activation furnace (10) is also connected with a pulse air pipe (13) facing the bottom of the hearth of the activation furnace (10), and the pulse air pipe (13) is connected with a pulse gas generator; along the length direction of the activation furnace (10), the air inlet pipes (12) and the pulse air pipes (13) are alternately arranged.

2. The apparatus for preventing furnace accretion during the production of activated carbon according to claim 1, wherein: the pulse gas generator is an air cannon or an electric control valve.

3. The apparatus for preventing furnace accretion during the production of activated carbon according to claim 1, wherein: the pulse air pipe (13) is positioned at the lower part of the activation furnace (10), and the direction of the pulse air pipe (13) is tangential to the hearth wall.

4. The apparatus for preventing furnace accretion during the production of activated carbon according to claim 1, wherein: the end part of the pulse air pipe (13) is internally provided with a conical flow guide pipe (14) and a flow guide block (15), the flow guide block (15) is positioned in the flow guide pipe (14), and the bus slope of the flow guide pipe (14) is smaller than that of the flow guide block (15).

5. The apparatus for preventing coking in activated carbon production process according to claim 4, wherein: and a fixing piece (16) which is distributed annularly is connected between the flow guide pipe (14) and the flow guide block (15), and the fixing piece (16) is matched with the inner wall of the pulse air pipe (13).

6. The apparatus for preventing coking in activated carbon production according to claim 5, wherein: the end face of the pulse air pipe (13) is fixed with a welding ring (17), and the fixing piece (16) is arranged on the inner side of the welding ring (17).