Graded oxygen supply type CO catalytic combustion furnace

Abstract

The application relates to the technical field of combustion furnaces, in particular to a CO catalytic combustion furnace with a staged oxygen supply, which comprises a furnace body, the left end of the furnace body is fixedly connected with an oxygen supply pipe, the outer side of the oxygen supply pipe is fixedly connected with a plurality of uniformly-distributed shunt pipes, the shunt pipes are provided with anti-backflow mechanisms, the inside of the furnace body is fixedly connected with a plurality of uniformly-distributed grading discs, the upper end of each grading disc is hingedly connected with a gravity cover, the inside of the furnace body is provided with a rotating shaft through a bearing, and the outer side of the rotating shaft is fixedly connected with a plurality of uniformly-distributed turbulence fans. The shunt pipes, the grading discs and the anti-backflow mechanisms and other structures are additionally arranged on the furnace body, when CO gas is supplied into the furnace body, the inside of the furnace body can be separated by the grading discs, then the CO gas and oxygen can be mixed in a staged mode, the CO gas flow speed can be reduced, and the catalytic quality can be improved.

Description

Technical Field

[0001] This application relates to the field of combustion furnace technology, specifically a staged oxygen supply type CO catalytic combustion furnace. Background Technology

[0002] A CO catalytic combustion furnace is an environmentally friendly device used to treat carbon monoxide (CO) waste gas. It converts toxic CO into harmless CO2 through a catalytic oxidation reaction. During the catalytic oxidation of CO, oxygen needs to be added to the CO gas to render it harmless. However, existing catalytic combustion furnaces simply mix the two gases inside the furnace, which can lead to insufficient mixing of oxygen and CO, and excessively high flow rates can also prevent complete CO reaction. Therefore, improvements to the existing technology are necessary. Utility Model Content

[0003] The purpose of this invention is to provide a staged oxygen supply type CO catalytic combustion furnace, which solves the problem of insufficient reaction of CO gas.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a staged oxygen supply type CO catalytic combustion furnace, comprising a furnace body, an oxygen supply pipe fixedly connected to the left end of the furnace body, a plurality of evenly distributed diversion pipes fixedly connected to the outer side of the oxygen supply pipe, an anti-backflow mechanism provided on the diversion pipes, a plurality of evenly distributed grading discs fixedly connected to the inside of the furnace body, a gravity cover hinged to the upper end of the grading discs, a rotating shaft installed inside the furnace body via bearings, a plurality of evenly distributed baffles fixedly connected to the outer side of the rotating shaft, a support frame fixedly connected to the upper part of the inner wall of the furnace body, and a motor fixedly installed inside the lower end of the furnace body.

[0005] Preferably, the diversion pipe is fixedly connected to the furnace body, and the rotating shaft is connected to the grading disc via a bearing. The grading disc can divide the interior of the furnace body into multiple chambers, and oxygen can be supplied in stages through the diversion pipe.

[0006] Preferably, the output shaft of the motor is fixedly connected to the rotating shaft, and the support frame is connected to the rotating shaft through a bearing, so that the motor can drive the rotating shaft to rotate.

[0007] Preferably, a sealing sleeve is fixedly connected to the bottom inner side of the furnace body, and the sealing sleeve is rotatably connected to the rotating shaft. The sealing sleeve can seal the connection between the rotating shaft and the furnace body.

[0008] Preferably, an air inlet pipe is fixedly connected to the lower right end of the furnace body, and an exhaust bend pipe is fixedly installed at the upper end of the furnace body. The air inlet pipe can provide CO gas to the interior of the furnace body.

[0009] Preferably, the anti-backflow mechanism includes a sealing cover, the sealing cover is hinged to the outer side of the diversion pipe inside the furnace body, a sealing ring is fixedly connected to the sealing cover on one side inside the diversion pipe, a fixing plate is fixedly connected to the top of the inner side of the diversion pipe, a tension spring is provided on the outer side of the fixing plate, the sealing ring slides in contact with the diversion pipe, and the sealing cover and sealing ring can seal the opening of the diversion pipe.

[0010] Preferably, one end of the tension spring is fixedly connected to the fixing plate, and the other end of the tension spring is fixedly connected to the sealing cover. The tension spring can automatically reset the sealing cover by its elastic force.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model, by adding a diversion pipe, a grading plate, and an anti-backflow mechanism to the furnace body, allows the furnace body to be divided by the grading plate when CO gas is supplied to the furnace body. This enables CO gas and oxygen to be mixed in stages, thereby reducing the flow rate of CO gas and improving the catalytic quality.

[0013] 2. This utility model, by adding a rotating shaft, a baffle fan, and a motor inside the furnace body, can agitate the two gas streams during the catalytic reaction of CO and oxygen, thereby improving the mixing efficiency and quality of the gas and further enhancing the catalytic quality. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure of this utility model;

[0015] Figure 2 For the present utility model Figure 1 Stereoscopic section Figure 1 ;

[0016] Figure 3 For the present utility model Figure 1 Stereoscopic section Figure 2 ;

[0017] Figure 4 For the present utility model Figure 2 A 3D view of the spoiler fan;

[0018] Figure 5 For the present utility model Figure 2 Enlarged front sectional view of the manifold.

[0019] In the diagram: 1. Furnace body; 2. Oxygen supply pipe; 3. Diverter pipe; 4. Anti-backflow mechanism; 5. Grading disc; 6. Gravity cover; 7. Rotating shaft; 8. Baffle fan; 9. Support frame; 10. Sealing sleeve; 11. Motor; 12. Inlet pipe; 13. Exhaust bend; 41. Sealing cover; 42. Sealing ring; 43. Fixing plate; 44. Tension spring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 A staged oxygen supply type CO catalytic combustion furnace includes a furnace body 1. An oxygen supply pipe 2 is fixedly connected to the left end of the furnace body 1. Multiple evenly distributed diversion pipes 3 are fixedly connected to the outside of the oxygen supply pipe 2. An anti-backflow mechanism 4 is provided on the diversion pipes 3. Multiple evenly distributed grading discs 5 are fixedly connected inside the furnace body 1. A gravity cover 6 is hinged to the upper end of the grading discs 5. A rotating shaft 7 is installed inside the furnace body 1 through a bearing. Multiple evenly distributed baffles 8 are fixedly connected to the outside of the rotating shaft 7. A support frame 9 is fixedly connected to the upper part of the inner wall of the furnace body 1. A motor 11 is fixedly installed inside the lower end of the furnace body 1.

[0022] Please see Figure 1-5 The diversion pipe 3 is fixedly connected to the furnace body 1. The rotating shaft 7 is connected to the grading disc 5 through bearings. The grading disc 5 can divide the interior of the furnace body 1 into multiple chambers. Oxygen can be supplied in stages through the diversion pipe 3. The output shaft of the motor 11 is fixedly connected to the rotating shaft 7. The support frame 9 is connected to the rotating shaft 7 through bearings. The motor 11 can drive the rotating shaft 7 to rotate. A sealing sleeve 10 is fixedly connected to the bottom inner side of the furnace body 1. The sealing sleeve 10 is rotatably connected to the rotating shaft 7. The sealing sleeve 10 can seal the connection between the rotating shaft 7 and the furnace body 1. An air inlet pipe 12 is fixedly connected to the lower right end of the furnace body 1. An exhaust bend pipe 13 is fixedly installed at the upper end of the furnace body 1. The air inlet pipe 12 can supply CO gas to the interior of the furnace body 1.

[0023] Please see Figure 1-5The anti-backflow mechanism 4 includes a sealing cover 41. The sealing cover 41 is hinged to the outside of the diversion pipe 3 inside the furnace body 1. A sealing ring 42 is fixedly connected to one side of the sealing cover 41 inside the diversion pipe 3. A fixing plate 43 is fixedly connected to the top of the inside of the diversion pipe 3. A tension spring 44 is provided on the outside of the fixing plate 43. The sealing ring 42 slides in contact with the diversion pipe 3. The sealing cover 41 and the sealing ring 42 can seal the opening of the diversion pipe 3. One end of the tension spring 44 is fixedly connected to the fixing plate 43, and the other end of the tension spring 44 is fixedly connected to the sealing cover 41. The tension spring 44 can automatically reset the sealing cover 41 through its elastic force.

[0024] The specific implementation process of this utility model is as follows: During use, the airflow enters the interior of the furnace body 1 through the air inlet pipe 12, and the oxygen is injected into the interior of the distribution pipe 3 through the oxygen supply pipe 2. When the pushing force of the oxygen gas on the sealing cover 41 is greater than the tension of the tension spring 44, the sealing cover 41 flips over. After the sealing cover 41 flips and separates from the distribution pipe 3, the oxygen can be injected into the interior of the furnace body 1. At the same time, the motor 11 is started. The motor 11 drives the turbulence fan 8 to rotate through the rotating shaft 7. During the rotation, the turbulence fan 8 can turbulently mix the airflow, which can initially improve the catalytic quality. At the same time, the airflow needs to drive the gravity cover 6 to deflect before it can enter the interior of the next chamber, and then mix with oxygen again, thereby further improving the catalytic quality of CO gas.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A staged oxygen supply type CO catalytic combustion furnace, comprising a furnace body (1), characterized in that: An oxygen supply pipe (2) is fixedly connected to the left end of the furnace body (1). Multiple evenly distributed diversion pipes (3) are fixedly connected to the outside of the oxygen supply pipe (2). An anti-backflow mechanism (4) is provided on the diversion pipe (3). Multiple evenly distributed grading discs (5) are fixedly connected inside the furnace body (1). A gravity cover (6) is hinged to the upper end of the grading disc (5). A rotating shaft (7) is installed inside the furnace body (1) through a bearing. Multiple evenly distributed turbulence fans (8) are fixedly connected to the outside of the rotating shaft (7). A support frame (9) is fixedly connected to the upper part of the inner wall of the furnace body (1). A motor (11) is fixedly installed inside the lower end of the furnace body (1).

2. The staged oxygen supply type CO catalytic combustion furnace according to claim 1, characterized in that: The diversion pipe (3) is fixedly connected to the furnace body (1), and the rotating shaft (7) is connected to the grading disc (5) through a bearing.

3. The staged oxygen supply type CO catalytic combustion furnace according to claim 1, characterized in that: The output shaft of the motor (11) is fixedly connected to the rotating shaft (7), and the support frame (9) is connected to the rotating shaft (7) through a bearing.

4. A staged oxygen supply type CO catalytic combustion furnace according to claim 1, characterized in that: A sealing sleeve (10) is fixedly connected to the bottom inner side of the furnace body (1), and the sealing sleeve (10) is rotatably connected to the rotating shaft (7).

5. A staged oxygen supply type CO catalytic combustion furnace according to claim 1, characterized in that: An air inlet pipe (12) is fixedly connected to the lower right end of the furnace body (1), and an exhaust bend pipe (13) is fixedly installed at the upper end of the furnace body (1).

6. A staged oxygen supply type CO catalytic combustion furnace according to claim 1, characterized in that: The anti-backflow mechanism (4) includes a sealing cover (41). The sealing cover (41) is hinged to the outside of the inside of the furnace body (1) of the diversion pipe (3). A sealing ring (42) is fixedly connected to one side of the inside of the diversion pipe (3). A fixing plate (43) is fixedly connected to the top of the inside of the diversion pipe (3). A tension spring (44) is provided on the outside of the fixing plate (43). The sealing ring (42) slides in contact with the diversion pipe (3).

7. A staged oxygen supply type CO catalytic combustion furnace according to claim 6, characterized in that: One end of the tension spring (44) is fixedly connected to the fixing plate (43), and the other end of the tension spring (44) is fixedly connected to the sealing cover (41).

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