CN214406102U

CN214406102U - Catalytic combustion furnace

Info

Publication number: CN214406102U
Application number: CN202120288609.9U
Authority: CN
Inventors: 刘飞
Original assignee: Cangzhou Chenhang Environmental Protection Equipment Co ltd
Current assignee: Cangzhou Chenhang Environmental Protection Equipment Co ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-10-15
Anticipated expiration: 2031-02-02

Abstract

The utility model relates to the technical field of combustion furnaces, in particular to a catalytic combustion furnace, which carries out secondary filtration on waste gas after catalytic combustion through a filter box arranged at a gas outlet, thereby eliminating the risk of pollution caused by the leakage of a small amount of waste gas due to insufficient unburned waste gas; including firing the burning furnace main part, fire the inside burning chamber that is provided with of burning furnace main part, burning chamber right side wall is provided with fore-and-aft drainage channel, drainage channel bottom is provided with the air outlet, the burning intracavity has set gradually a plurality of groups heat transfer pipeline from top to bottom, catalyst bed and electric heating wire, the left side wall upper portion intercommunication that fires the burning furnace main part has the intake pipe, the top intercommunication that fires the burning furnace main part has the outlet duct, both ends communicate intake pipe and drainage channel respectively about the heat transfer pipeline, the ventilative design of catalyst bed about and inside are provided with the noble metal catalyst, be provided with the rose box on the outlet duct, be provided with the activated carbon layer of the vertical equipartition of a plurality of groups in the rose box, be provided with the fan on the outlet duct of rose box top.

Description

Catalytic combustion furnace

Technical Field

The utility model relates to a fire burning furnace technical field, especially a catalytic combustion furnace.

Background

As is well known, industries such as petroleum, pharmacy, paint, printing and coating can generate high-concentration organic waste gas in the production process, the waste gas can stay in the atmosphere for a long time and can also diffuse and drift to a far place, which brings serious pollution to the environment, and the waste gas can directly generate great harm to the health of human bodies after being inhaled by human bodies, so the organic waste gas must be treated to purify the waste gas before being discharged, at present, the organic waste gas with large air volume and low concentration is treated by adopting an activated carbon adsorption combined desorption catalytic combustion process, but the process has the following problems: the existing catalytic combustion furnace is difficult to ensure the complete catalytic combustion of organic waste gas, and has the risk of leakage and pollution of a small amount of waste gas due to full unburned combustion.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a to prior art not enough, the utility model provides a waste gas after the rose box through setting up at the gas outlet carries out secondary filter to catalytic combustion, has eliminated because of a small amount of waste gas fully leaks the catalytic combustion stove of pollution risk because of not burning.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the catalytic combustion furnace comprises a combustion furnace main body, wherein a combustion chamber is arranged in the combustion furnace main body, a longitudinal drainage channel is arranged on the right side wall of the combustion chamber, an air outlet is formed in the bottom of the drainage channel, a plurality of groups of heat exchange pipelines, a catalyst bed and an electric heating wire are sequentially arranged in the combustion chamber from top to bottom, an air inlet pipe is communicated with the upper portion of the left side wall of the combustion furnace main body, an air outlet pipe is communicated with the top of the combustion furnace main body, the left end and the right end of each heat exchange pipeline are respectively communicated with the air inlet pipe and the drainage channel, a precious metal catalyst is arranged in the catalyst bed in an up-and-down ventilation design, a filter box is arranged on the air outlet pipe, a plurality of groups of longitudinally and uniformly distributed activated carbon layers are arranged in the filter box, and a fan is arranged on the air outlet pipe above the filter box.

Preferably, fire arresters are arranged on the air inlet pipe and the air outlet pipe.

Preferably, an explosion-proof device is arranged in the middle of the left side wall of the combustion furnace main body.

Preferably, a pressure gauge and a temperature gauge are respectively disposed on the left and right sides of the top of the combustion furnace body.

Preferably, the joint of the end parts of the heat exchange pipelines is sealed by welding.

Preferably, the side walls of the combustion furnace main body are internally provided with heat insulation layers.

(III) advantageous effects

Compared with the prior art, the utility model provides a catalytic combustion furnace possesses following beneficial effect:

this catalytic combustion furnace, under the suction effect of fan, organic waste gas that active carbon desorption adsorption equipment desorption goes out gets into the heat transfer pipeline by the intake pipe, and carry out the heat exchange with the high-temperature gas in the burning chamber in the heat transfer pipeline and preheat, organic waste gas after preheating gets into the drainage passageway, and discharge by the air outlet of drainage passageway bottom under the water conservancy diversion effect of drainage passageway and get into the burning chamber, the electric heating wire circular telegram that sets up in burning chamber bottom generates heat, and further heat organic waste gas after preheating to the required temperature of catalytic combustion, organic waste gas after the heating upwards passes through the catalyst bed, and the schizolysis converts CO into under the effect of the noble metal catalyst in the catalyst bed and changes into CO₂And H₂O, after the waste gas after the schizolysis continues upwards to carry out the heat transfer with the gas in the heat transfer pipeline, enter into the rose box through outlet duct exhaust burning chamber, the active carbon layer in the active carbon layer of a small amount of incomplete decomposition that contains in the waste gas is absorbed by the rose box, and avoid being discharged into and cause the pollution to the atmosphere, regularly change the active carbon layer in the rose box in order to guarantee the adsorption effect on active carbon layer in the rose box, the device carries out secondary filter through the rose box that sets up at the gas outlet to the waste gas after the catalytic combustion, eliminated because of a small amount of waste gas fully leaks the pollution risk because of not burning.

Drawings

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

FIG. 2 is a schematic sectional view of the present invention;

in the drawings, the reference numbers: 1. a furnace body; 2. a drainage channel; 3. an air outlet; 4. a heat exchange line; 5. a catalyst bed; 6. an electric heating wire; 7. an air inlet pipe; 8. an air outlet pipe; 9. a filter box; 10. an activated carbon layer; 11. a fan; 12. a flame arrestor; 13. an explosion-proof device; 14. a pressure gauge; 15. a thermometer; 16. a heat preservation and insulation layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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. 1-2, the catalytic combustion furnace of the present invention comprises a combustion furnace main body 1, a combustion chamber is disposed inside the combustion furnace main body 1, a longitudinal flow guiding channel 2 is disposed on a right side wall of the combustion chamber, an air outlet 3 is disposed at a bottom of the flow guiding channel 2, a plurality of heat exchanging pipes 4, a catalyst bed 5 and an electric heating wire 6 are sequentially disposed in the combustion chamber from top to bottom, the heat exchanging pipes 4 are used for transferring energy of clean gas after catalytic combustion to organic waste gas to be heated, so as to reduce energy consumption required by the device during operation, the electric heating wire 6 is used for heating the organic waste gas to a temperature required by catalytic combustion, an air inlet pipe 7 is communicated with an upper portion of the left side wall of the combustion furnace main body 1, an air outlet pipe 8 is communicated with a top portion of the combustion furnace main body 1, the left and right ends of the heat exchanging pipes 4 are respectively communicated with the air inlet pipe 7 and the flow guiding channel 2, the catalyst bed 5 is designed to be permeable from top to bottom and is internally provided with a noble metal catalyst, the precious metal catalyst can reduce the temperature condition required by the degradation of organic waste gas, the outlet pipe 8 is provided with the filter box 9, the filter box 9 is internally provided with a plurality of groups of activated carbon layers 10 which are longitudinally and uniformly distributed, the activated carbon layers 10 are used for absorbing a small amount of incompletely decomposed organic waste gas contained in the reacted waste gas, the outlet pipe 8 above the filter box 9 is provided with the fan 11, and the fan 11 provides wind power for the transmission of the organic waste gas.

The utility model discloses a catalytic combustion furnace all is provided with spark arrester 12 on intake pipe 7 and the outlet duct 8, is provided with the ripple net in the spark arrester 12, and when obvious flame appeared in the equipment, flame will become a plurality of tiny flames after passing through many tiny passageways of ripple net, and tiny flame and the contact of the 12 walls of spark arrester strengthen heat transfer, make the flame temperature fall below the ignition point to prevent flame spreading, with the flame separation in the combustion chamber.

The utility model discloses a catalytic combustion furnace fires burning furnace 1's left side wall middle part is provided with explosion-proof equipment 13, is provided with the rupture membrane in the explosion-proof equipment 13, and when the stove internal pressure was too big, the rupture membrane blasting step-down had promoted the security of device.

The utility model discloses a catalytic combustion furnace, the top left and right sides of burning furnace main part 1 is provided with manometer 14 and thermometer 15 respectively, can measure the feedback to the pressure value and the temperature of burning intracavity, and the convenience is to reaction regulation control in the device.

The utility model discloses a catalytic combustion furnace, 4 end connection departments of heat transfer pipeline adopt welded seal, improve the leakproofness of device, avoid untreated waste gas to leak.

The utility model discloses a catalytic combustion furnace all is provided with heat preservation insulating layer 16 in burning furnace main part 1 lateral wall, and heat preservation insulating layer 16 can prevent to burn 1 lateral wall of furnace main part and cause the high temperature scald accident when energy-conserving.

The utility model discloses a catalytic combustion furnace, when using, under fan 11's suction effect, organic waste gas through active carbon desorption adsorption equipment desorption play gets into heat transfer pipeline 4 by intake pipe 7, and carry out the heat exchange with the high-temperature gas in the burning chamber in heat transfer pipeline 4 and preheat, organic waste gas after preheating gets into drainage channel 2, and get into the burning chamber by 3 discharges of the air outlet of drainage channel 2 bottom under drainage channel 2's water conservancy diversion effect, the setting is at the 6 circular telegrams of the electric heating wire of burning chamber bottom and is generated heat, and further heat to the required temperature of catalytic combustion with the organic waste gas after preheating, organic waste gas after the heating upwards passes through catalyst bed 5, and the schizolysis converts CO into under the noble metal catalyst effect in catalyst bed 5, and catalyst bed 5 internal cracking is₂And H₂O, after continuously exchanging heat with the gas in the heat exchange pipeline 4 upwards, the cracked waste gas is discharged from the combustion chamber through the gas outlet pipe 8 and enters the filter box 9In, a small amount of organic waste gas that does not decompose completely that contains in the waste gas is absorbed by activated carbon layer 10 in the rose box 9, and avoids being discharged into and causes the pollution in the atmosphere, regularly changes activated carbon layer 10 in rose box 9 in order to guarantee activated carbon layer 10's adsorption effect in rose box 9, and the device carries out secondary filter through the rose box 9 that sets up at the gas outlet to the waste gas after the catalytic combustion, has eliminated because of a small amount of waste gas because of not burning fully and has leaked the pollution risk.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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 catalytic combustion furnace comprises a combustion furnace main body (1), wherein a combustion chamber is arranged in the combustion furnace main body (1), and is characterized in that a longitudinal drainage channel (2) is arranged on the right side wall of the combustion chamber, an air outlet (3) is arranged at the bottom of the drainage channel (2), a plurality of groups of heat exchange pipelines (4), a catalyst bed (5) and electric heating wires (6) are sequentially arranged in the combustion chamber from top to bottom, an air inlet pipe (7) is communicated with the upper part of the left side wall of the combustion furnace main body (1), an air outlet pipe (8) is communicated with the top of the combustion furnace main body (1), the left end and the right end of each heat exchange pipeline (4) are respectively communicated with the air inlet pipe (7) and the drainage channel (2), a noble metal catalyst is arranged in the catalyst bed (5) in an up-down air-permeable design, a filter box (9) is arranged on the air outlet pipe (8), and a plurality of groups of longitudinally and uniformly distributed active carbon layers (10) are arranged in the filter box (9), and a fan (11) is arranged on the air outlet pipe (8) above the filter box (9).

2. A catalytic combustion furnace according to claim 1, wherein flame arrestors (12) are provided on both the inlet duct (7) and the outlet duct (8).

3. A catalytic combustion furnace according to claim 2, characterized in that the furnace body (1) is provided with an explosion-proof device (13) in the middle of its left side wall.

4. A catalytic combustion furnace as claimed in claim 3, wherein a pressure gauge (14) and a temperature gauge (15) are provided on the top left and right sides of the furnace body (1), respectively.

5. A catalytic combustion furnace according to claim 4, characterized in that the joints of the ends of the heat exchange tubes (4) are sealed by welding.

6. A catalytic combustion furnace according to claim 5, wherein the side walls of the furnace body (1) are provided with thermal insulation (16).