CN217737178U

CN217737178U - Chain belt type low-nitrogen combustion chain grate furnace

Info

Publication number: CN217737178U
Application number: CN202221976530.6U
Authority: CN
Inventors: 安玉奎
Original assignee: Hebei Anyi Gypsum Building Material Co ltd
Current assignee: Hebei Anyi Gypsum Building Material Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-11-04
Anticipated expiration: 2032-07-29

Abstract

The utility model relates to a calandria technical field just discloses a chain belt low nitrogen burning chain calandria, including firing burning furnace, it is provided with the tuber pipe to fire the burning furnace outside, just the tuber pipe with fire burning furnace and be connected, it is provided with first connecting pipe to fire burning furnace left side, just first connecting pipe with fire burning furnace and be connected, first connecting pipe top right side is provided with the frying pan, just the frying pan with first connecting pipe is connected. This chain belt low-nitrogen combustion chain grate furnace, through setting up the backflow fan, the hot-blast entering into the frying pan inside through first connecting pipe that comes out after the burning heats, then hot-blast through the backflow fan carries out the heat exchange, the oxygen content ratio after the exchange is lower hot-blast through first, second and third back flow enter into the inside of firing burning furnace, reduce nitrogen oxide's emission, reduce the centralization of burning, play energy-conserving effect simultaneously, first, second, open and close through the valve between third back flow and the tuber pipe.

Description

Chain belt type low-nitrogen combustion chain grate furnace

Technical Field

The utility model relates to a arrange stove technical field, specifically be a chain belt formula low-nitrogen combustion chain row stove.

Background

A combustion furnace,Electric arcCombustion furnaceThe invented furnace uses high-voltage and high-frequency oscillating circuit to form instantaneous large current to ignite sample, so that the mixed gas produced by quick combustion of sample under the condition of rich oxygen can be passed through the chemical analysis procedure to quantitatively and quickly analyze the contents of carbon and sulfur in the sample.

At present, when an object is combusted, the existing combustion furnace can intensively combust, if the object is combusted intensively, nitrogen oxides generated by the combustion furnace are higher, and if the nitrogen oxides are discharged to the outside, the environment is greatly polluted, so that the combustion furnace is required to be improved.

SUMMERY OF THE UTILITY MODEL

To prior art not enough, the utility model provides a chain belt low-nitrogen combustion chain grate stove possesses energy-conservation and avoids burning too concentrated advantage, has solved the burning that present burning furnace can concentrate when burning the object, and the nitrogen oxide that can produce if too concentrated burning can be higher some, arranges outside and brings great pollution for the environment, consequently need carry out the modified problem to this burning furnace of burning.

The utility model provides a following technical scheme: the chain belt type low-nitrogen combustion chain grate furnace comprises a combustion furnace, wherein an air pipe is arranged on the outer side of the combustion furnace and is connected with the combustion furnace, a first connecting pipe is arranged on the left side of the combustion furnace and is connected with the combustion furnace, a wok is arranged on the right side of the top end of the first connecting pipe and is connected with the first connecting pipe, a second connecting pipe is arranged on the right side of the wok, the second connecting pipe is connected with the wok, an induced draft fan is arranged on the right side of the second connecting pipe and is connected with the second connecting pipe, a backflow fan is arranged at the bottom end of the second connecting pipe and is connected with the second connecting pipe, a first lower backflow pipe is arranged on the right side of the backflow fan, a second lower backflow pipe is arranged on the left side of the bottom end of the first lower backflow pipe and is connected with the first lower backflow pipe, a third lower backflow pipe is arranged at the bottom end of the first lower backflow pipe and is connected with the third upper backflow pipe, a backflow pipe is arranged on the left side of the bottom end of the first upper backflow fan and is connected with the second backflow pipe, and a third backflow pipe is connected with the upper backflow pipe, and a valve is connected with the upper backflow pipe.

Preferably, the air pipe and the third upper return pipe, the second upper return pipe and the first upper return pipe are opened and closed through the valve.

Preferably, the air pipe and the first lower return pipe, the third lower return pipe and the second lower return pipe are opened and closed through the valve.

Preferably, the number of the air ducts is multiple, and the air ducts are symmetrically arranged at the front end and the rear end of the combustion furnace.

Preferably, the top end of the backflow fan is connected with the second connecting pipe, and the right end of the backflow fan is connected with the top end of the first lower backflow pipe.

Preferably, a plurality of combustion boxes are arranged in the combustion furnace, and the plurality of combustion boxes are arranged at equal intervals.

Compared with the prior art, the utility model discloses possess following beneficial effect:

this chain belt low nitrogen burning chain grate furnace, through setting up the return-flow fan, the hot-blast entering into the frying pan inside through first connecting pipe that comes out after the burning heats, then hot-blast air carries out the heat exchange through the return-flow fan, the oxygen content after the exchange is lower hot-blast first, second and third back flow enter into the inside of firing burning furnace, reduce nitrogen oxide's emission, reduce the centralization of burning, play energy-conserving effect simultaneously, it is first, second, open and close through the valve between third back flow and the tuber pipe, consequently, the practicality of this chain grate furnace low nitrogen burning has been increased.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a combustion furnace according to the present invention;

fig. 3 is a schematic view of the connection structure of the air pipe and the return pipe in the present invention.

In the figure: 1. a frying pan; 2. a second connecting pipe; 3. an induced draft fan; 4. a return fan; 5. a first lower return pipe; 6. a third lower return pipe; 7. a second lower return pipe; 8. a combustion furnace; 9. a third upper return pipe; 10. a second upper return pipe; 11. a first upper return pipe; 12. a first connecting pipe; 13. an air duct; 14. and (4) a valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a chain belt type low-nitrogen combustion chain grate furnace, including a combustion furnace 8, an air pipe 13 is disposed outside the combustion furnace 8, and the air pipe 13 is connected to the combustion furnace 8, a first connection pipe 12 is disposed on the left side of the combustion furnace 8, and the first connection pipe 12 is connected to the combustion furnace 8, a wok 1 is disposed on the right side of the top end of the first connection pipe 12, and the wok 1 is connected to the first connection pipe 12, a second connection pipe 2 is disposed on the right side of the wok 1, and the second connection pipe 2 is connected to the wok 1, a draught fan 3 is disposed on the right side of the second connection pipe 2, and the draught fan 3 is connected to the second connection pipe 2, a backflow fan 4 is disposed at the bottom end of the second connection pipe 2, and the backflow fan 4 is connected to the right side of the backflow fan 4, a second lower backflow pipe 7 is disposed on the left side of the bottom end of the first lower backflow pipe 5, a third lower backflow pipe 6 is disposed on the bottom end of the second lower backflow pipe 7, a backflow pipe 11 is connected to the upper left side of the backflow fan 4, and a backflow pipe 10 is disposed on the right side of the second backflow pipe 9, and a backflow pipe 10 is connected to the backflow pipe 10, and a backflow pipe 10 is disposed on the upper portion of the second backflow fan 9.

Specifically, the air pipe 13 is opened and closed with the valve 14 among the third upper return pipe 9, the second upper return pipe 10 and the first upper return pipe 11.

Specifically, the air pipe 13 and the first lower return pipe 5, the third lower return pipe 6 and the second lower return pipe 7 are opened and closed through a valve 14.

Specifically, a plurality of air ducts 13 are provided, and the plurality of air ducts 13 are symmetrically provided at the front and rear ends of the combustion furnace 8.

Specifically, the top end of the backflow fan 4 is connected with the second connecting pipe 2, and the right end of the backflow fan 4 is connected with the top end of the first lower backflow pipe 5.

Specifically, a plurality of combustion boxes are arranged in the combustion furnace 8, and the plurality of combustion boxes are arranged at equal intervals.

During operation, hot air coming out after combustion enters the interior of the wok 1 through the first connecting pipe 12 to be heated, the hot air after heating enters the interior of the draught fan 3 and the backflow fan 4 through the second connecting pipe 2 respectively, the hot air entering the backflow fan 4 carries out heat exchange through the backflow fan 4, the hot air with lower oxygen content after exchange enters the interior of the combustion furnace 8 through the first backflow pipe, the second backflow pipe and the third backflow pipe, the discharge amount of nitrogen oxides is reduced, and the combustion concentration is reduced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A chain belt type low-nitrogen combustion chain grate furnace comprises a combustion furnace (8), and is characterized in that: an air pipe (13) is arranged on the outer side of the combustion furnace (8), the air pipe (13) is connected with the combustion furnace (8), a first connecting pipe (12) is arranged on the left side of the combustion furnace (8), the first connecting pipe (12) is connected with the combustion furnace (8), a frying pan (1) is arranged on the right side of the top end of the first connecting pipe (12), the frying pan (1) is connected with the first connecting pipe (12), a second connecting pipe (2) is arranged on the right side of the frying pan (1), the second connecting pipe (2) is connected with the frying pan (1), an induced draft fan (3) is arranged on the right side of the second connecting pipe (2), the induced draft fan (3) is connected with the second connecting pipe (2), a backflow fan (4) is arranged at the bottom end of the second connecting pipe (2), the backflow fan (4) is connected with the second connecting pipe (2), a first lower backflow pipe (5) is arranged on the right side of the backflow fan (4), a second lower backflow pipe (5) is arranged on the left side of the bottom end of the first lower backflow pipe (5), a second backflow pipe (7) is connected with the second lower backflow pipe (5), and a third backflow pipe (6) is arranged close to the second lower backflow pipe (7), backflow fan (4) upper left side sets up to be connected with first back flow (11) of going up, back flow (10) on the second is set up to be connected with in first back flow (11) bottom left side, first back flow (11) bottom of going up is close to back flow (10) right side is provided with back flow (9) on the third on the second, just back flow (9) on the third with back flow (10) are connected on the second, back flow (11) bottom of going up sets up to be connected with valve (14).

2. The chain belt type low-nitrogen combustion chain grate furnace of claim 1, characterized in that: the air pipe (13), the third upper return pipe (9), the second upper return pipe (10) and the first upper return pipe (11) are opened and closed through the valve (14).

3. The chain belt type low-nitrogen combustion chain grate furnace of claim 1, which is characterized in that: the air pipe (13) and the first lower return pipe (5), the third lower return pipe (6) and the second lower return pipe (7) are opened and closed through the valve (14).

4. The chain belt type low-nitrogen combustion chain grate furnace of claim 1, characterized in that: the air pipes (13) are arranged in plurality, and the air pipes (13) are symmetrically arranged at the front end and the rear end of the combustion furnace (8).

5. The chain belt type low-nitrogen combustion chain grate furnace of claim 1, which is characterized in that: the top end of the backflow fan (4) is connected with the second connecting pipe (2), and the right end of the backflow fan (4) is connected with the top end of the first lower backflow pipe (5).

6. The chain belt type low-nitrogen combustion chain grate furnace of claim 1, which is characterized in that: the combustion furnace (8) is internally provided with a plurality of combustion boxes which are arranged at equal intervals.