CN108895851B

CN108895851B - Smoke exhaust system of carbon calcination monomer furnace

Info

Publication number: CN108895851B
Application number: CN201810552501.9A
Authority: CN
Inventors: 王新华; 潘文剑; 陈红; 吴志刚; 欧军辉
Original assignee: Hunan Changning Carbon Co ltd
Current assignee: Hunan Changning Carbon Co ltd
Priority date: 2018-05-31
Filing date: 2018-05-31
Publication date: 2020-09-01
Anticipated expiration: 2038-05-31
Also published as: CN108895851A

Abstract

The invention discloses a smoke exhaust system of a carbon calcination single furnace, which comprises an upper layer flue, a middle layer flue and a bottom layer flue, wherein the upper layer flue, the middle layer flue and the bottom layer flue are all arranged at the bottom in a calciner furnace body; and a disturbance fan matched with the smoke exhaust system is arranged at the upper end of the furnace body. The invention not only can greatly improve the utilization efficiency of heat, but also is beneficial to improving the uniformity of the temperature at each position in the furnace body of the calcining furnace.

Description

Smoke exhaust system of carbon calcination monomer furnace

Technical Field

The invention relates to the field of carbon production equipment, in particular to a smoke exhaust system of a carbon calcination monomer furnace.

Background

The calcining furnace is one of main thermal equipment for producing carbon, and belongs to high-energy-consumption industrial furnace and kiln equipment. The calcining furnace is divided into a horizontal structure and a vertical structure, the calcining furnace with the vertical structure has great advantages from the aspects of time saving, labor saving and yield improvement, the combustion system of the existing carbon calcining furnace with the vertical structure is generally arranged on the furnace bottom or the furnace body, and the smoke exhaust channel is arranged on the upper part or the top end of the furnace body, the arrangement is based on the principle that hot smoke is easy to forget to go up, although the arrangement can ensure the smooth discharge of the smoke, the design is not beneficial to the effective utilization of heat, and the phenomenon of uneven heating in the furnace body is easy to occur.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a smoke exhaust system of a carbon calcination monomer furnace, which not only can greatly improve the utilization efficiency of heat, but also is beneficial to improving the uniformity of the temperature of each part in the furnace body of a calciner.

In order to solve the technical problems, the technical scheme provided by the invention is as follows: a smoke exhaust system of a carbon calcination single furnace comprises an upper layer flue, a middle layer flue and a bottom layer flue, wherein the upper layer flue, the middle layer flue and the bottom layer flue are all arranged at the bottom in a calciner furnace body, the upper layer flue consists of a plurality of first support columns which are discretely and vertically arranged, a support table is arranged between the upper layer flue and the bottom layer flue, an annular middle layer flue is formed between the support table and the side surface of the furnace body, the bottom layer flue is formed between the support table and the bottom surface of the furnace body, and the middle part of the bottom layer flue is provided with a general smoke exhaust port; and a disturbance fan matched with the smoke exhaust system is arranged at the upper end of the furnace body.

In the above-mentioned scheme, adopt three layer construction's the system of discharging fume, and the system of will discharging fume sets up the bottom at the furnace body, the cooperation uses the disturbance fan of furnace body upper end, can press the flue gas that is located the furnace body top to the furnace body bottom, then pass through upper flue in proper order, middle level flue and bottom flue, because the existence of upper flue, can guarantee to be equipped with the abundant temperature of receiving in bottom of plain workbin of charcoal, the whole homogeneity of being heated that makes the workbin is higher, because the existence of middle level flue, can guarantee that the flue gas persists certain time in upper flue, and still have heat retaining effect, the effect of bottom flue is heat retaining effect also mainly, still play and do benefit to the smooth effect of discharging from the exhaust port of flue gas.

As a further improvement of the above technical solution: first support column evenly sets up on a supporting bench, and the distance between two adjacent first support columns is less than the diameter that is used for the workbin of splendid attire charcoal, places the workbin on the support column, makes the workbin bottom be in the state of erectting, does benefit to hot flue gas and flows in the workbin bottom.

Further, a plurality of second support columns used for erecting the support table are arranged on the bottom surfaces of the support table and the furnace body, the distance between every two adjacent second support columns is larger than the distance between every two adjacent first support columns, the support table is erected by the main effect of the second support columns, and therefore on the premise that the support strength meets the requirements, the second support columns are smaller in density, and the flow of smoke is facilitated more.

Furthermore, the second support column is of a square structure or a cylindrical structure, and reliability and safety are high.

Furthermore, first support column is cylindrical structure, is convenient for all can reach the effect of better support workbin from different directions.

Furthermore, the height of the upper layer flue is smaller than the thickness of the middle layer flue, the height of the upper layer flue is smaller than the thickness of the bottom layer flue, the highest heat concentration degree in the upper layer flue is guaranteed, and the heating uniformity of the material box is convenient to achieve.

Furthermore, the thickness of the middle layer flue is not less than that of the bottom layer flue, so that the heat preservation effect of the middle layer flue is better.

Furthermore, first support column, brace table all adopt resistant firebrick to pile up and form, and life is higher, and structural strength and reliability are all higher.

Furthermore, the second support column is formed by stacking refractory bricks, so that the service life is long, and the structural strength and the reliability are high.

Furthermore, the width of the middle layer flue is not less than 30cm, so that the flue gas can smoothly enter the bottom layer flue from the upper layer flue, and the backflow phenomenon caused by the blockage of the flue gas is not easy to occur.

Compared with the prior art, the invention has the advantages that:

1. the invention adopts a three-layer smoke exhaust system, the smoke exhaust system is arranged at the bottom of the furnace body, and a disturbance fan at the upper end of the furnace body is used in a matching manner, so that the smoke at the top of the furnace body can be pressed to the bottom of the furnace body and then sequentially passes through an upper layer flue, a middle layer flue and a bottom layer flue, because of the existence of the upper layer flue, the bottom of a bin filled with carbon can be ensured to fully receive the temperature, the integral heating uniformity of the bin is higher, because of the existence of the middle layer flue, the smoke can be ensured to remain for a certain time in the upper layer flue, and the smoke exhaust system also has the function of heat preservation, the function of the bottom layer flue is mainly the function of heat preservation, and the;

2. the invention has simple structure, does not need to occupy extra ground space, only needs to increase the height of some whole bodies, has compact structure and lower construction cost;

3. the invention has reasonable design, does not influence the smoke exhaust process, can effectively utilize the heat of the smoke, and is beneficial to energy conservation and environmental protection.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Illustration of the drawings:

1. an upper flue; 2. a middle layer flue; 3. a bottom layer flue; 4. a furnace body; 5. a first support column; 6. a support table; 7. a smoke outlet; 8. disturbing the fan; 9. and a second support column.

Detailed Description

In order to facilitate an understanding of the invention, the invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below.

As shown in fig. 1, a smoke exhaust system of a carbon calcination single furnace comprises an upper layer flue 1, a middle layer flue 2 and a bottom layer flue 3, wherein the upper layer flue 1, the middle layer flue 2 and the bottom layer flue 3 are all arranged at the bottom in a calciner body 4, the upper layer flue 1 consists of a plurality of discrete and vertically arranged first support columns 5, a support table 6 is arranged between the upper layer flue 1 and the bottom layer flue 3, an annular middle layer flue 2 is formed between the support table 6 and the side surface of the calciner body 4, the bottom layer flue 3 is formed between the support table 6 and the bottom surface of the calciner body 4, and the middle part of the bottom layer flue 3 is provided with a total smoke exhaust port 7; the upper end of the furnace body 4 is provided with a disturbance fan 8 which is matched with the smoke exhaust system.

In this embodiment, first support column 5 evenly sets up on a supporting bench 6, and the distance between two adjacent first support column 5 is less than the diameter that is used for the workbin of splendid attire charcoal.

In this embodiment, a plurality of second support columns 9 for erecting the support table 6 are arranged on the bottom surfaces of the support table 6 and the furnace body 4, and the distance between two adjacent second support columns 9 is greater than the distance between two adjacent first support columns 5.

In this embodiment, the second supporting column 9 is a cylindrical structure.

In this embodiment, the first support column 5 is a cylindrical structure.

In this embodiment, the height of the upper layer flue 1 is smaller than the thickness of the middle layer flue 2, and the height of the upper layer flue 1 is smaller than the thickness of the bottom layer flue 3.

In this embodiment, the thickness of the middle layer flue 2 is not less than that of the bottom layer flue 3.

In the present embodiment, the first support column 5 and the support table 6 are each formed by stacking refractory bricks.

In this embodiment, the second support columns 9 are made of refractory bricks.

In this embodiment, the width of the middle layer flue 2 is not less than 30 cm.

Claims

1. The utility model provides a system of discharging fume of plain stove of calcining carbon which characterized in that: the device comprises an upper layer flue (1), a middle layer flue (2) and a bottom layer flue (3), wherein the upper layer flue (1), the middle layer flue (2) and the bottom layer flue (3) are all arranged at the bottom in a calcining furnace body (4), the upper layer flue (1) consists of a plurality of first support columns (5) which are discretely and vertically arranged, a support table (6) is arranged between the upper layer flue (1) and the bottom layer flue (3), the first support columns (5) are uniformly arranged on the support table (6), and the distance between every two adjacent first support columns (5) is smaller than the diameter of a bin for containing carbon; an annular middle-layer flue (2) with the width not less than 30cm is formed between the supporting table (6) and the side face of the furnace body (4), a plurality of second supporting columns (9) used for erecting the supporting table (6) are arranged between the supporting table (6) and the bottom face of the furnace body (4) to form a bottom-layer flue (3), and the distance between every two adjacent second supporting columns (9) is greater than the distance between every two adjacent first supporting columns (5); the height of the upper layer flue (1) is respectively smaller than the thickness of the middle layer flue (2) and the thickness of the bottom layer flue (3), and the thickness of the middle layer flue (2) is not smaller than the thickness of the bottom layer flue (3); the middle part of the bottom layer flue (3) is provided with a general smoke outlet (7); and a disturbance fan (8) matched with the smoke exhaust system is arranged at the upper end of the furnace body (4).

2. The smoke exhaust system of the carbon calcination monomer furnace of claim 1, wherein: the second supporting column (9) is of a square structure or a cylindrical structure.

3. The smoke exhaust system of the carbon calcination monomer furnace according to claim 1 or 2, wherein: the first supporting column (5) is of a cylindrical structure.

4. The smoke exhaust system of the carbon calcination monomer furnace according to claim 1 or 2, wherein: the first supporting column (5) and the supporting platform (6) are formed by stacking refractory bricks.

5. The smoke exhaust system of the carbon calcination monomer furnace of claim 1, wherein: the second supporting columns (9) are formed by stacking refractory bricks.