Coal tar processing waste gas treatment device

Abstract

The utility model discloses a coal tar processing waste gas treatment device which comprises a hollow treatment cylinder, a gas inlet is formed in one side of the treatment cylinder, a gas outlet is formed in the other side of the treatment cylinder, a gas guide bin is fixedly installed in an inner cavity of the treatment cylinder and located between the gas inlet and the gas outlet, one side of the gas guide bin is communicated with a gas exhaust pipe, and the gas exhaust pipe is communicated with a gas outlet. The opening end of the exhaust pipe is located in the air outlet, a flow guide disc is rotationally connected to the bottom of the air guide bin, a filter cartridge is fixedly installed at the bottom of the flow guide disc, a plurality of through holes are formed in the wall body of the filter cartridge in a penetrating mode, and a sponge column soaked with purification liquid is placed in an inner cavity of the filter cartridge. When the waste gas purification device is used, only the pressing rod needs to be pressed to push the extrusion disc to move downwards to extrude the sponge column, the purification liquid soaked on the sponge column is discharged from the through hole of the filter cartridge, and then the purification liquid is soaked on the sponge column again, so that the operation is simple, and the viscosity increase caused by repeatedly filtering the waste gas by the purification liquid is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of coal tar processing, and particularly relates to a waste gas treatment device for coal tar processing. Background Art

[0002] Coal tar is a by-product obtained from the pyrolysis or coking process of coal. It is a complex mixture containing a large amount of volatile organic compounds, polycyclic aromatic hydrocarbons, phenolic compounds, etc. In the process of coal tar processing, common operations include distillation, cracking, hydrogenation, oxidation, etc. The coal tar undergoes a pyrolysis reaction under high-temperature conditions, decomposing large molecular compounds in the coal tar into small molecular compounds and releasing a large amount of volatile organic compounds and waste gas.

[0003] In the process of waste gas treatment, the waste gas usually contacts with the purification liquid through spraying, adsorption, absorption and other methods to remove pollutants in the waste gas. The size of the contact area directly affects the mass transfer rate and mass transfer efficiency between the waste gas and the purification liquid, and further affects the waste gas treatment effect. For example, the Chinese patent with the publication number CN220424833U discloses a waste gas treatment device for coal tar processing. The filtered waste gas is introduced into the purification liquid more evenly through a diffuser pipe and the stirring rod can be driven to rotate by a rotating rod, so that the filtered waste gas can be fully contacted with the purification liquid, thereby effectively improving the purification effect of the waste gas.

[0004] The method of introducing the waste gas into the purification liquid for filtration is usually called wet waste gas treatment or wet scrubbing. In the actual use process of the above patent, after the waste gas continuously contacts with the purification liquid in the treatment tank, the viscosity of the purification liquid will also slowly increase due to the superposition of the pollutant concentration. If the viscosity of the purification liquid is relatively large, it will affect the speed of the subsequent introduced waste gas coming out of the purification liquid again. Summary of the Utility Model

[0005] In order to solve the technical problems existing in the above-mentioned prior art, the utility model provides a waste gas treatment device for coal tar processing.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A waste gas treatment device for coal tar processing, including a processing cylinder with a hollow interior. An air inlet is provided on one side of the processing cylinder, and an air outlet is provided on the other side of the processing cylinder. A gas guide chamber is fixedly installed in the inner cavity of the processing cylinder, and the gas guide chamber is located between the air inlet and the air outlet. One side of the gas guide chamber is communicated with an exhaust pipe, and the open end of the exhaust pipe is located in the air outlet. The bottom of the gas guide chamber is rotatably connected with a diversion disc, a filter cylinder is fixedly installed at the bottom of the diversion disc, a plurality of through holes are formed through the wall of the filter cylinder, and a sponge column soaked with purification liquid is placed in the inner cavity of the filter cylinder;

[0007] A pressing rod is movably arranged through the top of the treatment cylinder, and an extrusion disc is arranged at the bottom of the pressing rod, and the extrusion disc is located at the top of the sponge column.

[0008] Preferably, a liquid inlet valve is arranged at the top of the treatment cylinder, and a first resetting member is connected between the outer wall of the extrusion disc and the inner wall of the treatment cylinder.

[0009] Preferably, a drainage member is fixedly installed at the bottom of the filter cylinder, and the outer wall of the drainage member is slidably connected to the inner wall of the treatment cylinder, and a liquid outlet pipe is connected to the bottom of the treatment cylinder.

[0010] Preferably, the whole of the drainage member is conical, and a plurality of through holes are arranged in an annular array on the wall body of the drainage member.

[0011] Preferably, a liquid discharge chamber is arranged between the drainage member and the liquid outlet pipe, a plurality of through holes are penetrated through the wall body of the liquid discharge chamber, and a floating plate is slidably connected in the liquid discharge chamber.

[0012] Preferably, a second resetting member is connected between the outer wall of the floating plate and the inner wall of the liquid discharge chamber, and a blocking block is connected to the bottom of the floating plate through a fixing rod.

[0013] Compared with the prior art, the utility model provides a coal tar processing waste gas treatment device, which has the following beneficial effects:

[0014] (1) When it is necessary to replace the purification liquid on the sponge column, only need to press the pressing rod, so that the pressing rod pushes the extrusion disc to move downwards, extrude the sponge column, discharge the purification liquid impregnated on the sponge column from the through holes of the filter cylinder, and then immerse the purification liquid on the sponge column again. The operation is simple, and it is avoided that the viscosity increases due to the repeated filtration of the purification liquid for waste gas, affecting the waste gas treatment speed.

[0015] (2) After the purification liquid that has been repeatedly filtered and used is discharged from the through holes of the filter cylinder, it flows along the outer wall of the drainage member, flows into the bottom of the treatment cylinder from the through holes, and finally is discharged through the liquid outlet pipe, which is convenient for recycling to save costs, and the drainage member rotates synchronously with the diversion disc, avoiding the phenomenon that the purification liquid can only flow out from one of the through holes of the drainage member and causing blockage.

[0016] (3) The purification liquid at the bottom of the treatment cylinder flows into the liquid discharge chamber through the through holes on the liquid discharge chamber. As the purification liquid continuously increases, the liquid level of the purification liquid in the liquid discharge chamber rises, pushing the floating plate to move upwards, so that the blocking block is away from the opening at the top of the liquid outlet pipe, and the purification liquid can be automatically discharged from the liquid outlet pipe. Description of the Drawings

[0017] The accompanying drawings are used to provide a further understanding of the present utility model and form a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the accompanying drawings:

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the entire device in the embodiment;

[0019] Figure 2 It is a sectional structural schematic diagram of the processing cylinder in the embodiment;

[0020] Figure 3 It is a structural schematic diagram of the flow guide disc in the embodiment;

[0021] Figure 4 It is a structural schematic diagram of the extrusion disc in the embodiment;

[0022] Figure 5 For the embodiment Figure 2 Partial enlarged view of part A.

[0023] In the figure: 1. Processing cylinder; 2. Air inlet; 3. Air outlet; 4. Air guide chamber; 5. Exhaust pipe; 6. Flow guide disc; 7. Filter cylinder; 8. Sponge column; 9. Lower pressing rod; 10. Extrusion disc; 11. Liquid inlet valve; 12. First reset member; 13. Drainage member; 14. Liquid outlet pipe; 15. Liquid drainage chamber; 16. Floating plate; 17. Second reset member; 18. Blocking block. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Usually, the components of the embodiments of the present utility model described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but only represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present utility model.

[0025] Such as Figures 1 - 5As shown in the figure, this embodiment proposes a coal tar processing waste gas treatment device, including a processing cylinder 1 with a hollow interior. An air inlet 2 is provided on one side of the processing cylinder 1, and an air outlet 3 is provided on the other side of the processing cylinder 1. A gas guide chamber 4 is fixedly installed in the inner cavity of the processing cylinder 1, and the gas guide chamber 4 is located between the air inlet 2 and the air outlet 3. A exhaust pipe 5 is communicated with one side of the gas guide chamber 4, and the open end of the exhaust pipe 5 is located in the air outlet 3. A guide disk 6 is rotatably connected to the bottom of the gas guide chamber 4, a filter cylinder 7 is fixedly installed at the bottom of the guide disk 6, a number of through holes are penetrated through the wall of the filter cylinder 7, and a sponge column 8 soaked with a purification liquid is placed in the inner cavity of the filter cylinder 7.

[0026] A pressing rod 9 is movably penetrated through the top of the processing cylinder 1, an extrusion disk 10 is arranged at the bottom end of the pressing rod 9, and the extrusion disk 10 is located on the top of the sponge column 8.

[0027] Specifically, the waste gas generated during coal tar processing is introduced into the inner cavity of the processing cylinder 1 through the air inlet 2. The introduction of the air flow drives the guide disk 6 to rotate along its own axis. The waste gas enters the sponge column 8 through the through holes on the filter cylinder 7 and fully contacts the purification liquid soaked on the sponge column 8. After purification, it leads to the gas guide chamber 4 and then passes out through the exhaust pipe 5 on one side of it and the air outlet 3. When it is necessary to replace the purification liquid on the sponge column 8, only need to press the pressing rod 9, so that the pressing rod 9 pushes the extrusion disk 10 to move downward, extrude the sponge column 8, discharge the purification liquid soaked on the sponge column 8 from the through holes of the filter cylinder 7, and then immerse the sponge column 8 in the purification liquid again. The operation is simple, avoiding the increase in viscosity due to the repeated filtration of the waste gas by the purification liquid, which affects the treatment speed of the waste gas.

[0028] To improve the practicality of this device, as Figure 1 、 Figure 4 shown, a liquid inlet valve 11 is arranged at the top of the processing cylinder 1, and a first resetting member 12 is connected between the outer wall of the extrusion disk 10 and the inner wall of the processing cylinder 1.

[0029] Specifically, when it is necessary to immerse the sponge column 8 in the purification liquid again, new purification liquid is introduced through the liquid inlet valve 11; the first resetting member 12 can be selected as a spring according to the actual situation, which is convenient for pressing the pressing rod 9 to complete the extrusion of the sponge column 8, and then the extrusion disk 10 drives the pressing rod 9 to move upward, realizing the automatic reset of the pressing rod 9.

[0030] And to improve the functionality of this device, as Figure 2 、 Figure 4 shown, a drainage member 13 is fixedly installed at the bottom of the filter cylinder 7, and the outer wall of the drainage member 13 is slidably connected to the inner wall of the processing cylinder 1. A liquid outlet pipe 14 is connected to the bottom of the processing cylinder 1; the overall shape of the drainage member 13 is conical, and a number of through holes are arranged in an annular array on the wall of the drainage member 13.

[0031] Specifically, after the purified liquid that is repeatedly filtered and used is discharged from the through holes of the filter cartridge 7, it flows along the outer wall of the drainage member 13, flows from the through holes to the bottom of the treatment cylinder 1, and finally is discharged through the liquid outlet pipe 14, which is convenient for recycling to save costs. Moreover, the drainage member 13 rotates synchronously with the diversion disk 6 to prevent the phenomenon that the purified liquid can only flow out from one of the through holes of the drainage member 13 and become blocked.

[0032] As Figure 2 , Figure 5 shown, a liquid discharge chamber 15 is provided between the drainage member 13 and the liquid outlet pipe 14. A number of through holes are penetrated through the wall of the liquid discharge chamber 15. A floating plate 16 is slidably connected in the liquid discharge chamber 15; a second reset member 17 is connected between the outer wall of the floating plate 16 and the inner wall of the liquid discharge chamber 15. A blocking block 18 is connected to the bottom of the floating plate 16 through a fixing rod.

[0033] Specifically, the second reset member 17 can be selected as a spring according to the actual situation, which is convenient for the second reset member 17 to reset the floating plate 16 to drive the blocking block 18 to block the opening at the top of the liquid outlet pipe 14 as the liquid level of the purified liquid in the liquid discharge chamber 15 drops after the floating plate 16 moves upward; the purified liquid at the bottom of the treatment cylinder 1 flows into the liquid discharge chamber 15 through the through holes on the liquid discharge chamber 15. As the purified liquid continuously increases, the liquid level of the purified liquid in the liquid discharge chamber 15 rises, pushing the floating plate 16 upward, so that the blocking block 18 moves away from the opening at the top of the liquid outlet pipe 14, and the purified liquid can be automatically discharged through the liquid outlet pipe 14.

[0034] In the description of the present invention, the terms "first", "second", "another", and "yet another" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the embodiments of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0035] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "connected" and "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise stated, "a plurality of" means two or more.

[0036] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. An apparatus for treating waste gas from coal tar processing, comprising a processing cylinder (1) with a hollow interior, characterized in that: One side of the processing cylinder (1) is provided with an air inlet (2), and the other side of the processing cylinder (1) is provided with an air outlet (3). A gas guide chamber (4) is fixedly installed in the inner cavity of the processing cylinder (1), and the gas guide chamber (4) is located between the air inlet (2) and the air outlet (3). One side of the gas guide chamber (4) is communicated with an exhaust pipe (5), and the open end of the exhaust pipe (5) is located in the air outlet (3). A flow guide plate (6) is rotatably connected to the bottom of the gas guide chamber (4). A filter cylinder (7) is fixedly installed at the bottom of the flow guide plate (6). A plurality of through holes are penetrated through the wall of the filter cylinder (7). A sponge column (8) soaked with a purification liquid is placed in the inner cavity of the filter cylinder (7). A pressing rod (9) is movably penetrated through the top of the processing cylinder (1). An extrusion disc (10) is arranged at the bottom end of the pressing rod (9), and the extrusion disc (10) is located on the top of the sponge column (8).

2. The coal tar processing waste gas treatment device according to claim 1, wherein: A liquid inlet valve (11) is arranged at the top of the processing cylinder (1). A first reset member (12) is connected between the outer wall of the extrusion disc (10) and the inner wall of the processing cylinder (1).

3. The coal tar processing waste gas treatment device according to claim 1, wherein: A drainage member (13) is fixedly installed at the bottom of the filter cylinder (7), and the outer wall of the drainage member (13) is slidably connected with the inner wall of the processing cylinder (1). A liquid outlet pipe (14) is connected to the bottom of the processing cylinder (1).

4. The coal tar processing waste gas treatment device according to claim 3, wherein: The whole of the drainage member (13) is conical, and a plurality of through holes are arranged in an annular array on the wall of the drainage member (13).

5. The coal tar processing waste gas treatment device according to claim 4, characterized in that: A liquid discharge chamber (15) is arranged between the drainage member (13) and the liquid outlet pipe (14). A plurality of through holes are penetrated through the wall of the liquid discharge chamber (15). A floating plate (16) is slidably connected in the liquid discharge chamber (15).

6. The coal tar processing waste gas treatment device according to claim 5, characterized in that: A second reset member (17) is connected between the outer wall of the floating plate (16) and the inner wall of the liquid discharge chamber (15). A blocking block (18) is connected to the bottom of the floating plate (16) through a fixing rod.

Images