Liquid nitrogen wash tail gas catalytic combustion device

Abstract

The utility model relates to the technical field of tail gas treatment, in particular to a liquid nitrogen wash tail gas catalytic combustion device. The device comprises a combustion equipment body and a filtering mechanism, the filtering mechanism comprises an exhaust pipeline, the exhaust pipeline is arranged at the output end of the combustion equipment body, the inner side of the exhaust pipeline is movably connected with a filter screen and an activated carbon purification plug, and a positioning assembly is arranged at the joint of the activated carbon purification plug and the exhaust pipeline; a connecting groove is formed in the top end of the exhaust pipeline, one end of the connecting rod penetrates through the connecting groove and extends to the outer side of the exhaust pipeline, and a sealing ring sleeves the outer side of the connecting rod and is movably connected to the inner side of the connecting groove; tail gas generated after combustion of the combustion equipment body can be filtered twice, so that harmful substances are prevented from remaining in the tail gas, the purification performance of the combustion equipment body can be effectively improved, meanwhile, the filter screen and the activated carbon purification plug in the mechanism are designed to be replaceable, the service life of the mechanism is prolonged, and maintenance is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment, in particular to a liquid nitrogen tail gas washing catalytic combustion device. Background Art

[0002] Industrial waste gas treatment refers to the pre-treatment of waste gas generated by industrial sites such as factories and workshops before external discharge to meet the national waste gas external discharge standards. The principles of industrial waste gas treatment include activated carbon adsorption, catalytic combustion, catalytic oxidation, acid-base neutralization, plasma and other principles;

[0003] When using the catalytic combustion method, some exhaust gas will still remain in the tail gas due to incomplete combustion and other reasons. If these exhaust gases are discharged directly, they will still have a certain impact on the air. For this reason, we propose a liquid nitrogen washing exhaust gas catalytic combustion device. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a liquid nitrogen-washed exhaust gas catalytic combustion device, which can filter the exhaust gas generated after the combustion of the combustion equipment main body twice, thereby avoiding harmful substances remaining in the exhaust gas, and can effectively improve the purification performance of the combustion equipment main body. At the same time, the filter screen and activated carbon purification plug in this mechanism are both replaceable designs, which increases the service life of the mechanism and is easier to maintain.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a liquid nitrogen-washed exhaust gas catalytic combustion device, comprising a combustion equipment body and a filtering mechanism, the filtering mechanism comprising an exhaust pipe, the exhaust pipe is arranged at the output end of the combustion equipment body, a filter screen and an activated carbon purification plug are movably connected to the inner side of the exhaust pipe, a positioning component is provided at the connection between the activated carbon purification plug and the exhaust pipe, a connecting rod is provided at the top of the filter screen, a connecting groove is provided at the top of the exhaust pipe, one end of the connecting rod passes through the connecting groove and extends to the outside of the exhaust pipe, a sealing ring is sleeved on the outer side of the connecting rod, and the sealing ring is movably connected to the inner side of the connecting groove.

[0006] As a preferred technical solution of the utility model, the positioning assembly includes a fixing plate, which is arranged on the inner side of the exhaust pipe. A positioning slot is opened on the bottom end face of the activated carbon purification plug. A connecting rod is provided on the top of the fixing plate, and the connecting rod is inserted into the inner side of the positioning slot.

[0007] As a preferred technical solution of the utility model, a pull block is provided on the top end surface of the connecting rod, and anti-slip grooves are provided on the outer side of the pull block.

[0008] As a preferred technical solution of the utility model, a heat sink is provided on the outside of the exhaust pipe, and the heat sink is arranged at equal distances around the outside of the exhaust pipe.

[0009] As a preferred technical solution of the utility model, it also includes a disassembly and assembly mechanism, which includes a connecting plate, which is arranged on the top end face of the combustion equipment body, and the top of the connecting plate is semi-open and has an insertion groove, a rotating rod is movably connected to the inner side of the insertion groove, a limiting rod is provided on the outer side of the rotating rod, and one end of the rotating rod passes through the connecting plate and is located on the outer side of the connecting plate, a limiting groove is provided on the inner side of the insertion groove, and the limiting rod is movably connected to the inner side of the limiting groove.

[0010] As a preferred technical solution of the utility model, a connecting rotating block is provided on the top end surface of the rotating rod, and the diameter of the connecting rotating block is 0.8 times the diameter of the connecting plate.

[0011] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0012] 1. Through the filter mechanism, the tail gas generated after the combustion of the combustion equipment can be filtered twice, so as to avoid the residual harmful substances in the tail gas, which can effectively improve the purification performance of the combustion equipment. At the same time, the filter screen and activated carbon purification plug in this mechanism are replaceable, which increases the service life of the mechanism and is easier to maintain;

[0013] 2. Through the disassembly and assembly mechanism, when it is necessary to replace the ineffective activated carbon purification plug, a more effective focus point can be found, making it easier to take and place the activated carbon purification plug, thereby improving the ease of use of the filtering mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front structural schematic diagram of the utility model;

[0015] Figure 2 For the utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0016] Figure 3 This is a schematic diagram of the top view of the activated carbon purification plug of the utility model;

[0017] Figure 4 For the utility model Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0018] Among them: 1. Combustion equipment body; 2. Exhaust pipe; 3. Activated carbon purification plug; 20. Heat sink; 21. Connecting groove; 22. Filter; 23. Connecting rod; 24. Sealing ring; 25. Pull block; 26. Fixing plate; 27. Connecting plug rod; 30. Positioning slot; 31. Connecting plate; 32. Inserting groove; 33. Limiting groove; 34. Turning rod; 35. Limiting rod; 36. Connecting turning block. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.

[0020] like Figure 1-Figure 2 As shown, a liquid nitrogen-washed tail gas catalytic combustion device comprises a combustion equipment body 1 and a filtering mechanism, the filtering mechanism comprises an exhaust pipe 2, the exhaust pipe 2 is arranged at the output end of the combustion equipment body 1, a filter screen 22 and an activated carbon purification plug 3 are movably connected inside the exhaust pipe 2, a positioning assembly is arranged at the connection between the activated carbon purification plug 3 and the exhaust pipe 2, a connecting rod 23 is arranged at the top of the filter screen 22, a connecting groove 21 is arranged at the top of the exhaust pipe 2, one end of the connecting rod 23 passes through the connecting groove 21 and extends to the outside of the exhaust pipe 2, a sealing ring 24 is sleeved on the outside of the connecting rod 23, and the sealing ring 24 is movably connected to the inside of the connecting groove 21; the positioning assembly comprises a fixing plate 26, the fixing plate 26 is arranged at the inside of the exhaust pipe 2, a positioning slot 30 is arranged on the bottom end surface of the activated carbon purification plug 3, a connecting plug 27 is arranged at the top of the fixing plate 26, and the connecting plug 27 is plugged into the inside of the positioning slot 30;

[0021] Industrial waste gas treatment refers to the pre-treatment of waste gas generated by industrial sites such as factories and workshops before external discharge to meet the national waste gas external discharge standards. The principles of industrial waste gas treatment include activated carbon adsorption, catalytic combustion, catalytic oxidation, acid-base neutralization, plasma and other principles;

[0022] When using the catalytic combustion method, some exhaust gas will remain in the tail gas due to incomplete combustion and other reasons. If these exhaust gases are discharged directly, they will still have a certain impact on the air.

[0023] After the combustion equipment body 1 is burned and purified, the exhaust gas enters the exhaust pipe 2, is first filtered by the filter 22, and then is discharged after being filtered twice by the activated carbon purification plug 3, which effectively ensures the purification degree of the exhaust gas. When the filter 22 needs to be maintained after a certain period of use, the connecting rod 23 can be pulled out upwards, and the activated carbon purification plug 3 can also be pulled out of the exhaust pipe 2 upwards;

[0024] The exhaust gas generated after combustion of the combustion equipment main body 1 can be filtered twice to avoid harmful substances remaining in the exhaust gas, which can effectively improve the purification performance of the combustion equipment main body 1. At the same time, the filter screen 22 and the activated carbon purification plug 3 in this mechanism are both replaceable designs, which increases the service life of the mechanism and is easier to maintain.

[0025] In other embodiments, the present embodiment discloses, please Figure 2 As shown, a pull block 25 is provided on the top end face of the connecting rod 23, and anti-slip grooves are provided on the outer side of the pull block 25; through this design, it is easier to focus on the pull block 25 to pull out the connecting rod 23, thereby improving the usability.

[0026] In other embodiments, the present embodiment discloses, please Figure 1 As shown, a heat sink 20 is provided on the outside of the exhaust duct 2, and the heat sink 20 is arranged at equal distances around the outside of the exhaust duct 2; through this design, the heat dissipation performance of the exhaust duct 2 can be improved and heat accumulation can be avoided.

[0027] In other embodiments, the present embodiment discloses, please Figure 1-Figure 4 As shown, it also includes a disassembly mechanism, which includes a connecting plate 31, which is arranged on the top end surface of the combustion equipment body 1, and the top of the connecting plate 31 is semi-open and has an insertion groove 32, and a rotating rod 34 is movably connected to the inner side of the insertion groove 32, and a limiting rod 35 is arranged on the outer side of the rotating rod 34, and one end of the rotating rod 34 passes through the connecting plate 31 and is located on the outer side of the connecting plate 31, and a limiting groove 33 is arranged on the inner side of the insertion groove 32, and the limiting rod 35 is movably connected to the inner side of the limiting groove 33;

[0028] When it is necessary to take out the activated carbon purification plug 3, first align the limiting rod 35 with the notch on the insertion groove 32 and push it downward, then rotate the rotating rod 34, the limiting rod 35 enters the limiting groove 33, and then pull the rotating rod 34 upward to remove the activated carbon purification plug 3 from the exhaust pipe 2; when it is necessary to replace the ineffective activated carbon purification plug 3, a more effective fulcrum can be found, which makes it easier to take and place the activated carbon purification plug 3, thereby improving the convenience of using the filtering mechanism.

[0029] In other embodiments, the present embodiment discloses, please Figure 1-Figure 4 As shown, a connecting rotating block 36 is provided on the top end face of the rotating rod 34, and the diameter of the connecting rotating block 36 is 0.8 times the diameter of the connecting plate 31; through this design, when it is necessary to pull out the activated carbon purification plug 3, force can be applied by applying force on the connecting rotating block 36, which is more convenient to use.

[0030] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A liquid nitrogen-washed tail gas catalytic combustion device, comprising a combustion equipment body (1) and a filtering mechanism, characterized in that: The filtering mechanism comprises an exhaust pipe (2), the exhaust pipe (2) being arranged at the output end of a combustion equipment body (1), a filter screen (22) and an activated carbon purification plug (3) being movably connected inside the exhaust pipe (2), a positioning assembly being arranged at the connection between the activated carbon purification plug (3) and the exhaust pipe (2), a connecting rod (23) being arranged at the top end of the filter screen (22), a connecting groove (21) being arranged at the top end of the exhaust pipe (2), one end of the connecting rod (23) passing through the connecting groove (21) and extending to the outside of the exhaust pipe (2), a sealing ring (24) being sleeved on the outside of the connecting rod (23), and the sealing ring (24) being movably connected to the inside of the connecting groove (21).

2. A liquid nitrogen tail gas catalytic combustion device according to claim 1, characterized in that: The positioning assembly comprises a fixing plate (26), the fixing plate (26) being arranged on the inner side of the exhaust pipe (2), a positioning slot (30) being provided on the bottom end surface of the activated carbon purification plug (3), a connecting rod (27) being provided on the top end of the fixing plate (26), and the connecting rod (27) being inserted into the inner side of the positioning slot (30).

3. A liquid nitrogen tail gas catalytic combustion device according to claim 1, characterized in that: A pull block (25) is provided on the top end surface of the connecting rod (23), and anti-slip grooves are provided on the outer side of the pull block (25).

4. A liquid nitrogen tail gas catalytic combustion device according to claim 1, characterized in that: The outside of the exhaust pipe (2) is provided with heat sinks (20), and the heat sinks (20) are arranged at equal distances around the outside of the exhaust pipe (2).

5. The liquid nitrogen tail gas catalytic combustion device according to claim 1, characterized in that: The utility model also comprises a disassembly and assembly mechanism, wherein the disassembly and assembly mechanism comprises a connecting plate (31), wherein the connecting plate (31) is arranged on the top end surface of the combustion equipment body (1), wherein the top end of the connecting plate (31) is semi-open and has an insertion groove (32), wherein a rotating rod (34) is movably connected to the inner side of the insertion groove (32), wherein a limiting rod (35) is arranged on the outer side of the rotating rod (34), wherein one end of the rotating rod (34) passes through the connecting plate (31) and is located on the outer side of the connecting plate (31), wherein a limiting groove (33) is arranged on the inner side of the insertion groove (32), and wherein the limiting rod (35) is movably connected to the inner side of the limiting groove (33).

6. A liquid nitrogen-washed tail gas catalytic combustion device according to claim 5, characterized in that: A connecting rotating block (36) is provided on the top end surface of the rotating rod (34), and the diameter of the connecting rotating block (36) is 0.8 times the diameter of the connecting plate (31).

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