Pyrolysis furnace waste gas collection and treatment device

Abstract

The utility model discloses a pyrolyzing furnace waste gas collecting and treating device which comprises a treating tank, a gas inlet pipe is arranged on the side face of the treating tank, the gas inlet pipe is connected with a filter element, a drainage sleeve is arranged on the outer side of the filter element in a sleeved mode, the bottom end of the drainage sleeve is connected with the top end of the gas inlet pipe, and the drainage sleeve is detachably connected with the gas inlet pipe. A top cover is arranged at an opening in the top end of the treatment tank, the bottom of the inner side of the top cover is connected with a spraying ring, the spraying ring is used for spraying a chemical absorbent into the treatment tank, and harmful substances in waste gas are absorbed through the chemical absorbent. The spraying ring is arranged at the top end in the treatment tank, a chemical absorbent is sprayed through the spraying ring, and the chemical absorbent reacts with harmful substances in waste gas, so that the purpose of removing the harmful substances in the waste gas is achieved; meanwhile, a filter element is mounted at the gas inlet of the treatment tank and can filter dust in the waste gas before the waste gas enters the treatment tank, and a drainage sleeve is arranged on the outer side of the filter element.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a waste gas collection and treatment device for a pyrolysis furnace. Background Art

[0002] When burning oil sludge in a pyrolysis furnace, the oil sludge raw materials are first mixed, and the high calorific value and low calorific value oil sludges are thoroughly stirred and mixed. Then, they are loaded into the pyrolysis furnace for pyrolysis. During the pyrolysis process, natural gas is first used for combustion. After the pyrolysis has been running for a few hours and waste gas is generated, the waste gas is fully utilized for combustion and the use of natural gas is stopped. During the combustion process, four pyrolysis furnaces are ignited simultaneously. The pyrolysis furnace that generates waste gas first can use it by itself or be connected to other pyrolysis furnaces through a pipeline for use as fuel. This fully utilizes the waste gas, reduces the use of natural gas, and saves costs. However, the waste gas generated by the pyrolysis furnace cannot be used directly and needs to be collected and treated through the waste gas pipeline before it can be treated.

[0003] In the prior art, the utility model patent with application number CN202122927253.1 discloses a waste incineration fly ash pyrolysis pretreatment device, which includes: a box body, a pyrolysis furnace and a workbench. Wall vibrators are fixedly installed on both sides of the bottom of the pyrolysis furnace, a discharge pipe is fixedly installed on the bottom of the pyrolysis furnace, a collecting box is provided at the bottom of the box body, temperature sensors are fixedly installed on both sides of the inside of the collecting box, suction heads are fixedly installed on the inner side of the fan, heat dissipation holes are provided on both sides of the top of the collecting box, a processing box is fixedly installed on one side of the box body, and a filtering mechanism is provided inside the processing box.

[0004] The waste incineration fly ash pyrolysis pretreatment device provided by the above patent is equipped with a filtering mechanism, which can remove harmful substances and odors from the exhaust gas generated during the pyrolysis process of the pyrolysis furnace through the filtering mechanism to ensure that it meets the qualified emission standards. After the filtering mechanism completes the treatment, the exhaust gas is discharged through the exhaust pipe, thereby facilitating the staff to carry out the exhaust gas treatment work and optimizing the use process. Therefore, this treatment device mainly treats harmful substances in the exhaust gas through the filtering mechanism, and it needs to replace the filtering mechanism regularly. Otherwise, the adsorption of harmful substances in the exhaust gas and the filtering effect of the exhaust gas will be greatly reduced. In addition, the filtering mechanism of this treatment device is not easy to replace. Utility Model Content

[0005] The purpose of the utility model is to provide a pyrolysis furnace waste gas collection and treatment device, aiming to improve the problem that the existing waste gas treatment device needs to replace the filter mechanism regularly and its filter mechanism is not convenient to replace, which makes the entire device more troublesome to use.

[0006] The utility model is achieved in this way:

[0007] A pyrolysis furnace waste gas collection and treatment device includes a treatment tank, an air intake pipe is provided on the side of the treatment tank, the air intake pipe is connected to a filter element, and a drainage sleeve is provided on the outside of the filter element, the bottom end of the drainage sleeve is connected to the top end of the air intake pipe, and the drainage sleeve and the air intake pipe are detachably connected; a top cover is provided at the top opening of the treatment tank, and a spray ring is connected to the bottom inside the top cover, and the spray ring is used to spray a chemical absorbent into the interior of the treatment tank to absorb harmful substances in the waste gas through the chemical absorbent.

[0008] Preferably, a connecting ring is provided at the edge of the top opening of the processing tank, and a plurality of connecting holes are evenly provided on the connecting ring; a plurality of supporting legs are evenly provided at the bottom of the processing tank, and a plurality of bolt holes are provided at the bottom of the supporting legs.

[0009] Preferably, a supporting cover is provided at the top end of the air inlet pipe, a switching ring is provided at the middle inner side of the supporting cover, a drain pipe is provided at the bottom end of the side of the processing tank, and a first flange is provided at the end of the drain pipe.

[0010] Preferably, a mounting joint is provided at the top of the filter element, the mounting joint is threadedly connected to the adapter ring, and the inner ring of the filter element is connected to the air inlet pipe.

[0011] Preferably, an adapter is provided at the bottom of the drainage sleeve, and the adapter is threadedly connected to the supporting cover; an external tube is provided at the top of the drainage sleeve, and a second flange is provided at the end of the external tube.

[0012] Preferably, a mounting ring is provided at the bottom of the top cover, and a plurality of mounting holes are evenly arranged on the mounting ring; a guide pipe and an exhaust pipe are respectively provided at the top of the top cover, and a third flange is provided at the end of each of the guide pipe and the exhaust pipe.

[0013] Preferably, an inner ring is provided on the inner side of the spray ring, and a connecting pipe is provided on the inner side of the inner ring, and the connecting pipe is connected to the inner ring and the spray ring through a flow pipe; a plurality of atomizing nozzles are evenly provided on the bottom surface of the spray ring and the inner ring, and a pipe joint is provided on the top of the connecting pipe, and the pipe joint is threadedly connected to the guide pipe.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model sets a spray ring at the top of the processing tank, sprays chemical absorbent through the spray ring, and the chemical absorbent reacts with harmful substances in the exhaust gas, thereby achieving the purpose of removing harmful substances in the exhaust gas; at the same time, a filter element is installed at the air inlet of the processing tank, and the filter element can filter the dust in the exhaust gas before the exhaust gas enters the processing tank, and a drainage sleeve is provided on the outside of the filter element. The drainage sleeve is easy to disassemble and assemble, and the filter element is convenient for replacement and cleaning.

[0016] 2. The various components of the present invention are easy to assemble and disassemble, which facilitates the subsequent maintenance of the entire exhaust gas treatment device and also facilitates timely replacement of some components when they are damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the utility model as a whole;

[0018] Figure 2 It is a structural diagram of the treatment tank of the utility model;

[0019] Figure 3 It is a structural diagram of the filter element of the utility model;

[0020] Figure 4 This is a structural diagram of the drainage sleeve of the utility model;

[0021] Figure 5 It is a structural diagram of the top cover of the utility model;

[0022] Figure 6 It is a structural diagram of the spray ring of the utility model.

[0023] In the figure: 1. Treatment tank; 11. Connecting ring; 12. Connecting hole; 13. Inlet pipe; 14. Support cover; 15. Adapter ring; 16. Drain pipe; 17. First flange; 18. Support leg; 19. Bolt hole; 2. Filter element; 21. Mounting joint; 3. Drainage sleeve; 31. Adapter; 32. External pipe; 33. Second flange; 4. Top cover; 41. Mounting ring; 42. Mounting hole; 43. Guide pipe; 44. Exhaust pipe; 45. Third flange; 5. Spray ring; 51. Inner ring; 52. Flow pipe; 53. Connecting pipe; 54. Atomizing nozzle; 55. Pipe joint. DETAILED DESCRIPTION

[0024] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0025] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0026] Example 1

[0027] like Figure 1 and Figure 2As shown, a pyrolysis furnace waste gas collection and treatment device includes a treatment tank 1. An air inlet pipe 13 is provided on the side of the treatment tank 1. The air inlet pipe 13 facilitates the injection of waste gas into the treatment tank 1, making it convenient for the waste gas to be treated. The air inlet pipe 13 is connected to a filter element 2. The filter element 2 facilitates the filtering and treatment of waste gas, making it convenient to remove dust in the waste gas. A drainage sleeve 3 is provided on the outside of the filter element 2. The bottom end of the drainage sleeve 3 is connected to the top of the air inlet pipe 13. The drainage sleeve 3 and the air inlet pipe 13 are detachably connected. The drainage sleeve 3 facilitates the drainage of waste gas, so that the waste gas enters the drainage sleeve 3 and then enters the air inlet pipe 13 through the filter element 2, making it convenient to filter the waste gas with the filter element 2. It is also convenient to remove the drainage sleeve 3 to clean or replace the filter element 2. A top cover 4 is provided at the top opening of the treatment tank 1. The top cover 4 is convenient for sealing the top opening of the treatment tank 1. A spray ring 5 is connected to the bottom inner side of the top cover 4 , and the spray ring 5 is used to spray chemical absorbent into the interior of the treatment tank 1 to absorb harmful substances in the exhaust gas through the chemical absorbent.

[0028] like Figure 2 As shown, the top opening edge of the treatment tank 1 is equipped with a connecting ring 11, which is evenly distributed with multiple connecting holes 12. The connecting ring 11 and the connecting holes 12 facilitate the connection between the treatment tank 1 and the top cover 4, and this structure also facilitates the installation and removal of the top cover 4. The bottom of the treatment tank 1 is evenly distributed with multiple supporting legs 18, and the bottom of the supporting legs 18 is equipped with multiple bolt holes 19. The supporting legs 18 and the bolt holes 19 facilitate the bolt fixation of the treatment tank 1, ensuring its stable operation. The top of the inlet pipe 13 is equipped with a support cover 14, which is used to connect to the drainage sleeve 3. The inner center of the support cover 14 is equipped with an adapter ring 15, which facilitates the connection with the filter element 2 and the installation and removal of the filter element 2. The bottom end of the side of the treatment tank 1 is equipped with a drain pipe 16, and the end of the drain pipe 16 is equipped with a first flange 17. The drain pipe 16 and the first flange 17 facilitate the connection to the waste liquid pipeline to discharge the reacted chemical absorbent from the treatment tank 1.

[0029] like Figure 3 As shown, a mounting joint 21 is provided at the top of the filter element 2, the mounting joint 21 is threadedly connected to the adapter ring 15, and the inner ring of the filter element 2 is connected to the intake pipe 13; this structure facilitates the filter element 2 to filter the exhaust gas while also facilitating the disassembly, assembly and replacement of the filter element 2.

[0030] like Figure 4 As shown, the bottom of the drainage sleeve 3 is provided with an adapter 31, which is threadedly connected to the support cover 14. This structure facilitates the assembly and disassembly of the drainage sleeve 3 and facilitates its use. The top of the drainage sleeve 3 is provided with an external pipe 32, and the end of the external pipe 32 is provided with a second flange 33. The combination of the external pipe 32 and the second flange 33 facilitates the connection of the drainage sleeve 3 to the exhaust pipe of the pyrolysis furnace.

[0031] like Figure 5 As shown, the bottom of the top cover 4 is provided with a mounting ring 41, which is evenly distributed with multiple mounting holes 42. The mounting ring 41 and the mounting holes 42 facilitate bolting of the top cover 4 to the top opening of the treatment tank 1. A flow guide 43 and an exhaust pipe 44 are provided at the top of the top cover 4, each with a third flange 45 at the end. The flow guide 43 is connected to the pipeline supplying the chemical absorbent, facilitating the injection of the chemical absorbent into the inner wall of the spray ring 5 and allowing the chemical absorbent to be sprayed out from the inside of the spray ring 5.

[0032] Working principle: When in use, the waste liquid discharge pipe is connected to the drain pipe 16, the chemical absorbent supply pipe is connected to the guide pipe 43, the waste gas collection pipe is connected to the exhaust pipe 44, and the waste gas pipe of the pyrolysis furnace is connected to the external pipe 32. After the waste gas enters the drainage cover through the external pipe 32, the waste gas is filtered through the filter element 2 and enters the intake pipe 13. Then the waste gas enters the inside of the treatment tank 1, and the chemical absorbent is sprayed on the waste gas through the spray ring 5, so that the harmful substances in the waste gas and the chemical absorbent fully react, ensuring that the harmful substances in the waste gas are absorbed; the reagents that react with the harmful substances are discharged from the drain pipe 16. This structure only needs to supply chemical reagents to absorb harmful substances, and does not require a separate filtering and absorption structure. Therefore, there is no need to replace the filtering mechanism that absorbs harmful substances, only regular cleaning or replacement of the filter element 2 is required, and the filter element 2 is also easy to replace. Compared with the prior art, the present application sets a spray ring 5 at the top of the inner part of the treatment tank 1, sprays chemical absorbent through the spray ring 5, and reacts with harmful substances in the exhaust gas through the chemical absorbent, thereby achieving the purpose of removing harmful substances in the exhaust gas; at the same time, a filter element 2 is installed at the air inlet of the treatment tank 1, and the filter element 2 can filter the dust in the exhaust gas before the exhaust gas enters the treatment tank 1, and a drainage sleeve 3 is provided on the outside of the filter element 2, and the drainage sleeve 3 is easy to disassemble and assemble, so that the filter element 2 is convenient for replacement and cleaning.

[0033] Example 2

[0034] like Figure 1 and Figure 2As shown, a pyrolysis furnace waste gas collection and treatment device includes a treatment tank 1. An air inlet pipe 13 is provided on the side of the treatment tank 1. The air inlet pipe 13 facilitates the injection of waste gas into the treatment tank 1, making it convenient for the waste gas to be treated. The air inlet pipe 13 is connected to a filter element 2. The filter element 2 facilitates the filtering and treatment of waste gas, making it convenient to remove dust in the waste gas. A drainage sleeve 3 is provided on the outside of the filter element 2. The bottom end of the drainage sleeve 3 is connected to the top of the air inlet pipe 13. The drainage sleeve 3 and the air inlet pipe 13 are detachably connected. The drainage sleeve 3 facilitates the drainage of waste gas, so that the waste gas enters the drainage sleeve 3 and then enters the air inlet pipe 13 through the filter element 2, making it convenient to filter the waste gas with the filter element 2. It is also convenient to remove the drainage sleeve 3 to clean or replace the filter element 2. A top cover 4 is provided at the top opening of the treatment tank 1. The top cover 4 is convenient for sealing the top opening of the treatment tank 1. A spray ring 5 is connected to the bottom inner side of the top cover 4 , and the spray ring 5 is used to spray chemical absorbent into the interior of the treatment tank 1 to absorb harmful substances in the exhaust gas through the chemical absorbent.

[0035] like Figure 2 As shown, the top opening edge of the treatment tank 1 is equipped with a connecting ring 11, which is evenly distributed with multiple connecting holes 12. The connecting ring 11 and the connecting holes 12 facilitate the connection between the treatment tank 1 and the top cover 4, and this structure also facilitates the installation and removal of the top cover 4. The bottom of the treatment tank 1 is evenly distributed with multiple supporting legs 18, and the bottom of the supporting legs 18 is equipped with multiple bolt holes 19. The supporting legs 18 and the bolt holes 19 facilitate the bolt fixation of the treatment tank 1, ensuring its stable operation. The top of the inlet pipe 13 is equipped with a support cover 14, which is used to connect to the drainage sleeve 3. The inner center of the support cover 14 is equipped with an adapter ring 15, which facilitates the connection with the filter element 2 and the installation and removal of the filter element 2. The bottom end of the side of the treatment tank 1 is equipped with a drain pipe 16, and the end of the drain pipe 16 is equipped with a first flange 17. The drain pipe 16 and the first flange 17 facilitate the connection to the waste liquid pipeline to discharge the reacted chemical absorbent from the treatment tank 1.

[0036] like Figure 3 As shown, a mounting joint 21 is provided at the top of the filter element 2, the mounting joint 21 is threadedly connected to the adapter ring 15, and the inner ring of the filter element 2 is connected to the intake pipe 13; this structure facilitates the filter element 2 to filter the exhaust gas while also facilitating the disassembly, assembly and replacement of the filter element 2.

[0037] like Figure 4 As shown, the bottom of the drainage sleeve 3 is provided with an adapter 31, which is threadedly connected to the support cover 14. This structure facilitates the assembly and disassembly of the drainage sleeve 3 and facilitates its use. The top of the drainage sleeve 3 is provided with an external pipe 32, and the end of the external pipe 32 is provided with a second flange 33. The combination of the external pipe 32 and the second flange 33 facilitates the connection of the drainage sleeve 3 to the exhaust pipe of the pyrolysis furnace.

[0038] like Figure 5 As shown, the bottom of the top cover 4 is provided with a mounting ring 41, which is evenly distributed with multiple mounting holes 42. The mounting ring 41 and the mounting holes 42 facilitate bolting of the top cover 4 to the top opening of the treatment tank 1. A flow guide 43 and an exhaust pipe 44 are provided at the top of the top cover 4, each with a third flange 45 at the end. The flow guide 43 is connected to the pipeline supplying the chemical absorbent, facilitating the injection of the chemical absorbent into the inner wall of the spray ring 5 and allowing the chemical absorbent to be sprayed out from the inside of the spray ring 5.

[0039] like Figure 6 As shown, the spray ring 5 is provided with an inner ring 51 on its inner side, and a connecting pipe 53 is provided on its inner side. The connecting pipe 53 is connected to the inner ring 51 and the spray ring 5 via a flow pipe 52. This structure facilitates the smooth entry of the chemical absorber into the connecting pipe 53. Multiple atomizing nozzles 54 are evenly distributed on the bottom surfaces of the spray ring 5 and the inner ring 51. The atomizing nozzles 54 are used to spray atomized chemical absorbent, facilitating their use. A pipe joint 55 is provided at the top of the connecting pipe 53, which is threadedly connected to the guide pipe 43. This structure facilitates the threaded connection of the spray ring 5 to the top cover 4.

[0040] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A pyrolysis furnace waste gas collection and treatment device, comprising a treatment tank (1), characterized in that: An air inlet pipe (13) is provided on the side of the treatment tank (1), the air inlet pipe (13) is connected to a filter element (2), and a drainage sleeve (3) is provided on the outside of the filter element (2), the bottom end of the drainage sleeve (3) is connected to the top end of the air inlet pipe (13), and the drainage sleeve (3) and the air inlet pipe (13) are detachably connected; a top cover (4) is provided at the top opening of the treatment tank (1), and a spray ring (5) is connected to the bottom inside the top cover (4), and the spray ring (5) is used to spray a chemical absorbent into the interior of the treatment tank (1), so as to absorb harmful substances in the exhaust gas through the chemical absorbent.

2. A pyrolysis furnace waste gas collection and treatment device according to claim 1, characterized in that: The top opening edge of the processing tank (1) is provided with a connecting ring (11), and a plurality of connecting holes (12) are evenly arranged on the connecting ring (11); the bottom of the processing tank (1) is evenly provided with a plurality of supporting legs (18), and the bottom of the supporting legs (18) is provided with a plurality of bolt holes (19).

3. A pyrolysis furnace waste gas collection and treatment device according to claim 2, characterized in that: A supporting cover (14) is provided at the top of the air inlet pipe (13), an adapter ring (15) is provided at the middle of the inner side of the supporting cover (14), a drain pipe (16) is provided at the bottom end of the side of the processing tank (1), and a first flange (17) is provided at the end of the drain pipe (16).

4. A pyrolysis furnace waste gas collection and treatment device according to claim 3, characterized in that: The top end of the filter element (2) is provided with a mounting joint (21), the mounting joint (21) is threadedly connected to the adapter ring (15), and the inner ring of the filter element (2) is in communication with the air inlet pipe (13).

5. The pyrolysis furnace exhaust gas collection and treatment device according to claim 3, characterized in that: The bottom of the drainage sleeve (3) is provided with an adapter (31), and the adapter (31) is threadedly connected to the supporting cover (14); the top of the drainage sleeve (3) is provided with an external pipe (32), and the end of the external pipe (32) is provided with a second flange (33).

6. The pyrolysis furnace exhaust gas collection and treatment device according to claim 1, characterized in that: The bottom of the top cover (4) is provided with a mounting ring (41), and a plurality of mounting holes (42) are evenly arranged on the mounting ring (41); the top of the top cover (4) is respectively provided with a guide pipe (43) and an exhaust pipe (44), and the ends of the guide pipe (43) and the exhaust pipe (44) are both provided with a third flange (45).

7. The pyrolysis furnace exhaust gas collection and treatment device according to claim 6, characterized in that: An inner ring (51) is provided on the inner side of the spray ring (5), and a connecting pipe (53) is provided on the inner side of the inner ring (51). The connecting pipe (53) is connected to the inner ring (51) and the spray ring (5) through a flow pipe (52); a plurality of atomizing nozzles (54) are evenly provided on the bottom surfaces of the spray ring (5) and the inner ring (51), and a pipe joint (55) is provided on the top end of the connecting pipe (53), and the pipe joint (55) is threadedly connected to the guide pipe (43).

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