CN218065909U

CN218065909U - Brick kiln fired by natural gas

Info

Publication number: CN218065909U
Application number: CN202220913536.2U
Authority: CN
Inventors: 高新忠; 高俊仁
Original assignee: Shanxi Mayuhe Ancient Architecture Brick Tile Co ltd
Current assignee: Shanxi Mayuhe Ancient Architecture Brick Tile Co ltd
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2022-12-16
Anticipated expiration: 2032-04-20

Abstract

The utility model discloses a brick kiln fired by natural gas. The brick kiln fired by natural gas comprises a kiln body, a grate, a waste gas recycling structure, a pressure relief pipe and a natural gas supply system. The grate is fixedly arranged in the inner cavity of the kiln body; the inner cavity of the kiln body forms a firing chamber and a combustion chamber up and down through the grate. The waste gas recycling structure comprises a first waste gas conveying pipe, a pressurizing air supply pipe, an exhaust fan and a second waste gas conveying pipe; and the gas transmission port of the second waste gas conveying pipe fixedly penetrates through the kiln body and is communicated with the combustion chamber. The utility model discloses an adopt brick body kiln that natural gas fired flows back through firing waste gas to outside exhaust and handles at the processing of burning, under the stability and the high efficiency that guarantee waste gas burning, has realized the recycling of the combustible product of abundant burning in the waste gas, so through the utilization ratio that improves the firing heat source, can effectively reduce the burning air supply with firing the cost.

Description

Brick kiln fired by natural gas

Technical Field

The utility model relates to a kiln field especially relates to a brick body kiln of adopting natural gas to fire.

Background

The kiln is a furnace for firing ceramic ware and sculpture or fusing enamel on the surface of metal ware, is a device built by refractory materials for firing products, and is a necessary facility in ceramic tile forming. The existing kiln can be made into various specifications according to the needs, and can be operated by adopting coal, oil or electricity, the traditional coal-fired kiln face has the disadvantages of increasingly reduced energy reserves, violent energy price rise, and the coal-fired kiln often generates a large amount of sulfur dioxide and has serious dust pollution in the combustion process; electric kilns are easier to control temperature than kilns using a combustible coal and oil, in which case the natural gas kiln becomes the best choice for material firing.

In the prior art, a kiln fired by natural gas is adopted, and in the process of firing brick bodies, the phenomenon of insufficient gas source combustion easily occurs in the natural gas firing mode, so that products which permit continuous combustion are mixed in the outwardly discharged firing waste gas, and the firing cost for the natural gas is reduced because the outwardly discharged waste gas cannot be processed and utilized.

SUMMERY OF THE UTILITY MODEL

Therefore, the kiln for firing the natural gas is needed to solve the problem that the natural gas firing mode is easy to generate insufficient gas source combustion in the process of firing the brick body in the existing kiln for firing the natural gas, so that the firing waste gas discharged outwards is mixed with products which permit continuous combustion, and the firing cost for the natural gas is reduced because the discharged waste gas is not processed and utilized.

A brick kiln fired by natural gas comprises a kiln body;

the kiln further comprises:

the grate is fixedly arranged in the inner cavity of the kiln body; the inner cavity of the kiln body forms a firing chamber and a combustion chamber up and down through the grate;

the waste gas recycling structure is arranged on the kiln body and comprises a first waste gas conveying pipe fixedly penetrating through the top of the kiln body and communicated with the firing chamber, a pressurizing gas conveying pipe fixedly communicated with the outer surface of the first waste gas conveying pipe, an exhaust fan fixedly connected to a gas conveying port of the first waste gas conveying pipe and a second waste gas conveying pipe fixedly installed at a gas conveying end of the exhaust fan; the gas transmission port of the second waste gas conveying pipe fixedly penetrates through the kiln body and is communicated with the combustion chamber;

the pressure relief pipe fixedly penetrates through the kiln body and is communicated with the combustion chamber; and

and the natural gas supply system is used for providing a natural gas combustion heat source in the combustion chamber.

According to the brick kiln fired by natural gas, the firing waste gas discharged outwards flows back to be processed in the combustion process, under the condition that the stability and the efficiency of waste gas combustion are guaranteed, the combustible products which are not fully combusted in the waste gas are recycled, and therefore the firing cost for a combustion gas source can be effectively reduced by improving the utilization rate of a firing heat source.

In one embodiment, the front surface of the kiln body is provided with a sealed kiln door.

In one embodiment, a gas dryer is fixedly communicated between the first exhaust gas conveying pipes, and the gas dryer is fixedly installed on the kiln body.

In one embodiment, a gas feed pump is connected outside the booster gas feed pipe.

In one embodiment, when the waste gas of combustion rises in the firing chamber, the waste gas is returned to the combustion chamber by the waste gas reusing structure to be combusted.

In one embodiment, the natural gas supply system comprises a natural gas pipeline fixedly penetrating through the side wall of the kiln body, a flow valve arranged on the natural gas pipeline and facing away from the kiln body, and a combustion nozzle fixedly connected to the gas transmission end of the natural gas pipeline.

In one embodiment, the natural gas line extends through the kiln body and into the combustion chamber.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses, be in through setting up the intercommunication burn the firing chamber and let the waste gas between the combustion chamber recycle the structure, possess in the air supply pipe and last under the ability of oxygenation to and under the pressure release pipe provided the ability of pressure release in the combustion chamber, take through the air and burn once more with the ascending waste gas of burning to the combustion chamber, satisfying under the effectual burning of natural gas air supply system, can realize the effect with burning waste gas reburning utilization, the event is through improving the utilization ratio of firing the heat source, can effectively reduce the burning air supply with firing the cost.

2. The utility model discloses, based on the gas desicator that sets up in the exhaust gas recycling structure, it can carry out drying process to the burning waste gas of recycling, through the degree of dryness that has reduced burning waste gas to improve the combustion efficiency of follow-up waste gas at the burning utilization.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

Fig. 1 is a schematic structural diagram of a brick kiln fired by natural gas.

Fig. 2 is a schematic structural view showing an exhaust gas recycling structure of fig. 1.

Fig. 3 is a plan perspective view of fig. 1.

Description of the main elements

In the figure: 1. a kiln body; 2. a grate; 21. a firing chamber; 22. a combustion chamber; 3. an exhaust gas recycling structure; 31. a first exhaust gas delivery pipe; 32. a pressurized air supply pipe; 33. an exhaust fan; 34. a second exhaust gas transport pipe; 4. a pressure relief pipe; 5. a natural gas supply system; 51. a natural gas pipeline; 52. a flow valve; 53. a combustion nozzle; 6. sealing the kiln door; 7. a gas dryer.

The present invention is described in further detail with reference to the drawings and the detailed description.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1-3, the present embodiment provides a brick kiln fired by natural gas, which includes a kiln body 1.

The brick kiln fired by natural gas further comprises a grate 2, a waste gas recycling structure 3, a pressure relief pipe 4 and a natural gas supply system 5.

Wherein, the front surface of the kiln body 1 is provided with a sealed kiln door 6. The sealed kiln door 6 can provide tightness during the firing process of the kiln body 1.

Wherein, the grate 2 is fixedly arranged in the inner cavity of the kiln body 1; the inner cavity of the kiln body 1 is vertically formed into a burning chamber 21 and a combustion chamber 22 through a grate 2. The space of the firing chamber 21 can be used for firing the product; the combustion chamber 22 may provide a source of heat for firing by combustion of natural gas.

Wherein, the natural gas supply system 5 is used for providing a heat source for the combustion of the natural gas in the combustion chamber 22; the natural gas supply system 5 comprises a natural gas pipeline 51 fixedly penetrating through the side wall of the kiln body 1, a flow valve 52 arranged on the natural gas pipeline 51 and back to the kiln body 1, and a combustion nozzle 53 fixedly connected to the gas transmission end of the natural gas pipeline 51;

a natural gas line 51 extends through the kiln body 1 and into the combustion chamber 22.

Specifically, natural gas is continuously supplied into the natural gas pipeline 51 through the outside; the flow valve 52 can be used to control the input flow of natural gas in the natural gas pipeline 51, and then the natural gas can be stably ejected and combusted by the ignited combustion nozzle 53 to meet the heat source for the subsequent material firing.

Referring to fig. 2, the exhaust gas recycling structure 3 is disposed on the kiln body 1; the waste gas recycling structure 3 comprises a first waste gas conveying pipe 31 fixedly penetrating the top of the kiln body 1 and communicated with the sintering chamber 21, a pressurizing air-feeding pipe 32 fixedly communicated with the outer surface of the first waste gas conveying pipe 31, an exhaust fan 33 fixedly connected with the air conveying port of the first waste gas conveying pipe 31 and a second waste gas conveying pipe 34 fixedly arranged at the air conveying end of the exhaust fan 33; the gas delivery port of the second waste gas delivery pipe 34 fixedly penetrates through the kiln body 1 and is communicated with the combustion chamber 22;

the pressurizing air-feeding pipe 32 is externally connected with an air-feeding pump; by connecting the air supply pump to the pressurization air supply pipe 32, the waste gas can carry air to the combustion chamber 22 by utilizing the air pressurization mode of the air supply pump, so as to meet the sufficiency of subsequent waste gas combustion;

when the exhaust gas is combusted in the combustion chamber 21, the exhaust gas is returned to the combustion chamber 22 by the exhaust gas reuse structure 3 and is combusted.

Specifically, in the process of firing the brick body in the kiln body 1, the exhaust fan 33 can be started to work, the waste gas generated by combustion can sequentially pass through the first waste gas conveying pipe 31 and the second waste gas conveying pipe 34 to enter the combustion chamber 22, meanwhile, the air fed into the first waste gas conveying pipe 31 in the pressurization air feed pipe 32 can be mixed with the waste gas and fed into the combustion chamber 22, the natural gas supply system 5 in the combustion process is matched, the combustion source can act on the waste gas with air inclusions, so that the waste gas can be combusted again, the reutilization effect of the firing heat source is realized, and the waste of resources caused by the fact that the unburned and sufficient media are discharged along with the waste gas during the firing combustion is avoided.

Further, a gas dryer 7 is fixedly communicated between the first exhaust gas conveying pipes 31, and the gas dryer 7 is fixedly installed on the kiln body 1. The gas dryer 7 can dry the recycled combustion exhaust gas, and improves the combustion efficiency of the subsequent exhaust gas in combustion utilization by reducing the dryness of the combustion exhaust gas.

Wherein, the pressure relief pipe 4 fixedly penetrates through the kiln body 1 and is communicated with the combustion chamber 22; the pressure relief pipe 4 can provide a pressure channel in the combustion chamber 22, and meanwhile, based on the exhaust gas recycling structure 3 in the combustion chamber 22 and the pressure relief pipe 4, the connectivity between the two is realized, namely, the effect of combustion-assisted oxygen of the natural gas supply system is met.

In summary, compared with the existing brick kiln, the brick kiln fired by natural gas of the embodiment has the following advantages: the brick kiln fired by natural gas in the embodiment realizes the reutilization of combustible products which are not fully combusted in waste gas by carrying out reflux on the firing waste gas discharged outwards in the combustion processing treatment under the condition of ensuring the stability and high efficiency of waste gas combustion, so that the firing cost for a combustion gas source can be effectively reduced by improving the utilization rate of a firing heat source.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein and that the invention is not to be considered as limited to the disclosed embodiments, but is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. A brick kiln fired by natural gas, which comprises a kiln body (1);

characterized in that, the kiln still includes:

the grate (2) is fixedly arranged in the inner cavity of the kiln body (1); the inner cavity of the kiln body (1) forms a firing chamber (21) and a combustion chamber (22) up and down through the grate (2);

the waste gas recycling structure (3) is arranged on the kiln body (1) and comprises a first waste gas conveying pipe (31) which fixedly penetrates through the top of the kiln body (1) and is communicated with the firing chamber (21), a pressurizing air-feeding pipe (32) which is fixedly communicated with the outer surface of the first waste gas conveying pipe (31), an exhaust fan (33) which is fixedly connected with an air conveying port of the first waste gas conveying pipe (31) and a second waste gas conveying pipe (34) which is fixedly arranged at an air conveying end of the exhaust fan (33); the gas delivery port of the second waste gas delivery pipe (34) fixedly penetrates through the kiln body (1) and is communicated with the combustion chamber (22);

the pressure relief pipe (4) fixedly penetrates through the kiln body (1) and is communicated with the combustion chamber (22); and

a natural gas supply system (5) for providing a source of natural gas combustion heat within the combustion chamber (22).

2. A natural gas fired brick kiln as claimed in claim 1, characterized in that the front surface of the kiln body (1) is provided with a sealed kiln door (6).

3. The kiln for bricks fired by natural gas according to claim 1, characterized in that a gas drier (7) is fixedly connected between the first exhaust gas delivery pipes (31), and the gas drier (7) is fixedly installed on the kiln body (1).

4. A natural gas fired brick kiln according to claim 1 characterized in that the booster air feed pipe (32) is externally connected to an air feed pump.

5. A natural gas fired brick kiln according to claim 1 characterized in that when the waste gas of combustion rises in the firing chamber (21), the waste gas is returned by the waste gas reuse structure (3) to the combustion chamber (22) for in-combustion.

6. The natural gas fired brick kiln as claimed in claim 1, characterized in that the natural gas supply system (5) comprises a natural gas pipeline (51) fixedly penetrating through the side wall of the kiln body (1), a flow valve (52) installed on the natural gas pipeline (51) and facing away from the kiln body (1) and a combustion nozzle (53) fixedly connected to the gas transmission end of the natural gas pipeline (51).

7. A natural gas fired brick kiln according to claim 6 characterized in that said natural gas pipe (51) extends through said kiln body (1) and into said combustion chamber (22).