Desulfurizing tower for tail gas treatment

Abstract

The utility model discloses a desulfurizing tower for tail gas treatment, which comprises a desulfurizing tower body, a filtering channel is arranged in the desulfurizing tower body, a first conveying channel is connected onto the filtering channel, a first sucking pump is arranged on the first conveying channel, a second conveying channel is connected onto one end of the first conveying channel, and a second sucking pump is arranged on the second conveying channel. The desulfurization tower comprises a desulfurization tower body, a first conveying channel and a second conveying channel, the first conveying channel is arranged in the desulfurization tower body, an alkali liquor bin is arranged in the desulfurization tower body, the second conveying channel is arranged in the alkali liquor bin in an S shape, and a plurality of aeration heads are arranged on the second conveying channel. Waste gas in the filtering channel enters the second conveying channel through the first conveying channel, waste gas in the second conveying channel is discharged into the alkali liquor bin through the aeration head, the contact area of the waste gas and alkali liquor can be increased, the reaction speed of the waste gas and the alkali liquor is increased, and then the waste gas treatment efficiency and effect of the desulfurizing tower are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization towers, and specifically relates to a desulfurization tower for tail gas treatment. Background Technique

[0002] During the graphitization process of graphite electrodes, high-temperature tail gas around 1100 °C will be generated at the top of the graphitization kiln furnace. These high-temperature tail gases are usually directly discharged through chimneys. Since the high-temperature tail gases include dust, sulfur dioxide, and pitch fumes, they will cause serious pollution to the atmospheric environment and severely deteriorate the environment and climate. Currently, when the existing desulfurization tower is in use, the alkali liquid is atomized to carry out a chemical reaction with the waste gas, but still a part of the waste gas cannot contact the alkali liquid, reducing the effect of the desulfurization tower. At the same time, the filter screen needs to be blown and washed or replaced after long-term use, and the speed of replacing the filter screen is relatively slow, thus affecting the working efficiency of the desulfurization tower.

[0003] For example, the utility model patent with the publication number CN213790871U discloses a desulfurization tower for the tail gas of a graphitization kiln furnace, which relates to the technical field of tail gas treatment of graphitization kiln furnaces. It includes a desulfurization tower. The inner bottom of the desulfurization tower is fixedly connected with an alkali liquid tank. The inner bottom of the alkali liquid tank is fixedly connected with an anti-corrosion tank. The inner side wall of the anti-corrosion tank is fixedly connected with a water pump. The left end of the water pump passes through the anti-corrosion tank and enters the interior of the alkali liquid tank. The output end of the water pump is fixedly connected with a delivery pipe. When this device is in use, the alkali liquid is atomized to carry out a chemical reaction with the waste gas, but still a part of the waste gas cannot contact the alkali liquid, reducing the effect of the desulfurization tower. At the same time, the filter screen needs to be blown and washed or replaced after long-term use, and the speed of replacing the filter screen is relatively slow, thus affecting the working efficiency of the desulfurization tower. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a desulfurization tower for tail gas treatment, which solves the problems that when the existing desulfurization tower is in use, the alkali liquid is atomized to carry out a chemical reaction with the waste gas, but still a part of the waste gas cannot contact the alkali liquid, reducing the effect of the desulfurization tower. At the same time, the filter screen needs to be blown and washed or replaced after long-term use, and the speed of replacing the filter screen is relatively slow, thus affecting the working efficiency of the desulfurization tower.

[0005] To achieve the above objectives, the utility model is realized through the following technical solutions: A desulfurization tower for tail gas treatment, including a desulfurization tower body, a filtration channel is arranged inside the desulfurization tower body, a pair of bag filters are movably arranged inside the filtration channel, a pair of mounting blocks are arranged inside the filtration channel, a first sliding groove and a second sliding groove are respectively arranged on the mounting blocks, a pair of second sliding blocks and a pair of first sliding blocks are arranged on the bag filter, and the bag filter is slidably installed inside the first sliding groove and the second sliding groove through the second sliding blocks and the first sliding blocks. A first conveying channel is connected to the filtration channel, a first air extraction pump is arranged on the first conveying channel, a first solenoid valve is arranged on the first conveying channel and on one side of the first air extraction pump, one end of the first conveying channel is connected to a second conveying channel, an alkali liquid tank is arranged inside the desulfurization tower body, the second conveying channel is arranged in an "S" shape inside the alkali liquid tank, and a plurality of aeration heads are arranged on the second conveying channel.

[0006] Preferably, a second motor is arranged inside the desulfurization tower body and below the alkali liquid tank, a first support block is arranged on the driving end of the second motor, a pair of third motors are arranged inside the first support block, a lead screw is arranged on the driving end of the third motor, a pair of fixed bins are arranged on the lower wall surface of the first support block, the lead screw is rotatably arranged inside the fixed bin, a fourth support block is movably arranged inside the fixed bin, and the lead screw is screwed inside the fourth support block.

[0007] Preferably, a third support block is arranged on the fourth support block, a second support block is arranged on the third support block, a second insertion block is arranged on the second support block, a fixing block is arranged on the bag filter, a first insertion slot is arranged inside the fixing block, the second insertion block is movably arranged inside the first insertion slot, a second insertion slot is arranged on the bag filter, a pair of first insertion blocks are arranged on the first support block, and the bag filter is inserted on the first insertion blocks through the second insertion slot.

[0008] Preferably, a backwashing channel is connected to the filtration channel, and a second air extraction pump is arranged on the backwashing channel.

[0009] Preferably, an exhaust gas inlet channel is arranged on the desulfurization tower body, the exhaust gas inlet channel is connected to the filtration channel, and a second pneumatic valve is arranged on the exhaust gas inlet channel.

[0010] Preferably, a sewage discharge channel is connected to the filtration channel, a first motor is arranged inside the desulfurization tower body, a star-shaped sewage discharge valve is arranged on the driving end of the first motor, and the star-shaped sewage discharge valve is rotatably arranged inside the sewage discharge channel.

[0011] Beneficial effects

[0012] The desulfurization tower for tail gas treatment provided by the utility model has the following beneficial effects:

[0013] In this design, by driving the first air pump to start, the waste gas in the filtering channel enters the second conveying channel through the first conveying channel, and the waste gas in the second conveying channel is discharged into the lye tank through the aeration head, which can increase the contact area between the waste gas and the lye, increase the reaction speed between the waste gas and the lye, and thus improve the waste gas treatment efficiency and effect of the desulfurization tower.

[0014] In this design, by driving the second motor to rotate, controlling the rotation of the first support block, and then moving the bag filter, it can facilitate the staff to quickly replace the bag filter, reduce the time required for replacing the bag filter, and thus improve the working efficiency of the desulfurization tower. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the whole of the utility model.

[0016] Figure 2 It is of the utility model Figure 1 Partial enlarged view of part A in

[0017] Figure 3 It is a schematic diagram of the bag filter of the utility model.

[0018] Figure 4 It is a schematic diagram of the fixed bin of the utility model.

[0019] Figure 5 It is a schematic diagram of the lye tank of the utility model.

[0020] Figure 6 It is a schematic diagram of the second support block of the utility model.

[0021] Figure 7 It is a schematic diagram of the mounting block of the utility model.

[0022] In the figure: 1, desulfurization tower body; 2, first solenoid valve; 3, first conveying channel; 4, first air pump; 5, mounting block; 6, waste gas inlet channel; 7, sewage discharge channel; 8, star sewage discharge valve; 9, first motor; 10, bag filter; 11, second motor; 12, filtering channel; 13, backwashing channel; 14, second air pump; 15, lye tank; 16, first support block; 17, third motor; 18, fixed bin; 19, lead screw; 20, fixed block; 21, second support block; 22, third support block; 23, fourth support block; 24, first slot; 25, first slider; 26, second slider; 27, second slot; 28, first plug; 29, second conveying channel; 30, aeration head; 31, second plug; 32, first chute; 33, second chute; 34, second pneumatic valve. Detailed implementation manners

[0023] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-7 , the present utility model provides a technical solution: a desulfurization tower for tail gas treatment, including a desulfurization tower body 1, characterized in that a filtering channel 12 is arranged in the desulfurization tower body 1, a pair of bag filters 10 are movably arranged in the filtering channel 12, a pair of mounting blocks 5 are arranged in the filtering channel 12, a first sliding groove 32 and a second sliding groove 33 are respectively arranged on the mounting blocks 5, a pair of second sliders 26 and a pair of first sliders 25 are arranged on the bag filter 10, and the bag filter 10 is slidably mounted in the first sliding groove 32 and the second sliding groove 33 through the second sliders 26 and the first sliders 25. A first conveying channel 3 is connected to the filtering channel 12, a first air extraction pump 4 is arranged on the first conveying channel 3, a first solenoid valve 2 is arranged on the first conveying channel 3 and on one side of the first air extraction pump 4, one end of the first conveying channel 3 is connected to a second conveying channel 29, an alkali liquid tank 15 is arranged in the desulfurization tower body 1, the second conveying channel 29 is arranged in an "S" shape in the alkali liquid tank 15, and a plurality of aeration heads 30 are arranged on the second conveying channel 29;

[0025] An alkali liquid is provided in the alkali liquid tank 15, which can neutralize the acidic gas in the waste gas;

[0026] The first solenoid valve 2 can control the opening and closing of the first conveying channel 3;

[0027] The second conveying channel 29 is arranged in an "S" shape in the alkali liquid tank 15, which can increase the contact area between the second conveying channel 29 and the alkali liquid in the alkali liquid tank 15, thereby improving the waste gas treatment efficiency and effect of the desulfurization tower;

[0028] The bag filter 10 is slidably mounted in the first sliding groove 32 and the second sliding groove 33 through the second sliders 26 and the first sliders 25, and then the bag filter 10 is mounted in the mounting block 5 to fix the bag filter 10;

[0029] Drive the first air extraction pump 4 to start, so that the waste gas in the filtering channel 12 enters the second conveying channel 29 through the first conveying channel 3, and the waste gas in the second conveying channel 29 is discharged into the lye tank 15 through the aeration head 30, which can increase the contact area between the waste gas and the lye, increase the reaction rate between the waste gas and the lye, and thus improve the waste gas treatment efficiency and effect of the desulfurization tower.

[0030] In this embodiment, it is further set that a second motor 11 is arranged below the lye tank 15 in the desulfurization tower body 1. A first support block 16 is arranged on the driving end of the second motor 11. A pair of third motors 17 are arranged in the first support block 16. A lead screw 19 is arranged on the driving end of the third motor 17. A pair of fixed bins 18 are arranged on the lower wall surface of the first support block 16. The lead screw 19 is rotatably arranged in the fixed bin 18. A fourth support block 23 is movably arranged in the fixed bin 18. The lead screw 19 is screwed into the fourth support block 23.

[0031] Drive the second motor 11 to rotate, control the first support block 16 to rotate, and thus move the bag filter 10, which can facilitate the staff to quickly replace the bag filter 10, reduce the time required to replace the bag filter 10, and thus improve the working efficiency of the desulfurization tower.

[0032] Drive the third motor 17 to rotate, drive the lead screw 19 to rotate, and thus lift and lower the fourth support block 23.

[0033] In this embodiment, it is further set that a third support block 22 is arranged on the fourth support block 23. A second support block 21 is arranged on the third support block 22. A second insertion block 31 is arranged on the second support block 21. A fixing block 20 is arranged on the bag filter 10. A first insertion slot 24 is arranged in the fixing block 20. The second insertion block 31 is movably arranged in the first insertion slot 24. A second insertion slot 27 is arranged on the bag filter 10. A pair of first insertion blocks 28 are arranged on the first support block 16. The bag filter 10 is inserted on the first insertion blocks 28 through the second insertion slot 27.

[0034] The lifting and lowering of the fourth support block 23 drives the third support block 22 to move, makes the second support block 21 move, and thus makes the second insertion block 31 inserted into the first insertion slot 24 to fix the bag filter 10.

[0035] The bag filter 10 is inserted on the first insertion blocks 28 through the second insertion slot 27, and thus the bag filter 10 is movably installed on the first support block 16, which can facilitate the staff to disassemble and assemble the bag filter 10.

[0036] In this embodiment, it is further set that an anti-washing channel 13 is connected to the filtering channel 12, and a second air extraction pump 14 is arranged on the anti-washing channel 13;

[0037] Drive the second air extraction pump 14 to start, so that the air outside the desulfurization tower body 1 blows and washes the bag filter 10 through the anti-washing channel 13, and the dust in the bag filter 10 can be removed.

[0038] In this embodiment, it is further set that an exhaust gas inlet channel 6 is arranged on the desulfurization tower body 1, the exhaust gas inlet channel 6 is connected to the filtering channel 12, and a second pneumatic valve 34 is arranged on the exhaust gas inlet channel 6;

[0039] The second pneumatic valve 34 controls the opening and closing of the exhaust gas inlet channel 6.

[0040] In this embodiment, it is further set that a sewage discharge channel 7 is connected to the filtering channel 12, a first motor 9 is arranged in the desulfurization tower body 1, a star sewage discharge valve 8 is arranged on the driving end of the first motor 9, and the star sewage discharge valve 8 is rotatably arranged in the sewage discharge channel 7;

[0041] Drive the first motor 9 to rotate, drive the star sewage discharge valve 8 to rotate, and the dust in the belt filter can be discharged better.

[0042] Embodiment: When the desulfurization tower is in use, the waste gas enters the filtering channel 12 through the waste gas inlet channel 6. The bag filter 10 is slidably installed in the first chute 32 and the second chute 33 through the second slider 26 and the first slider 25, so that the bag filter 10 is installed in the mounting block 5, and can filter the dust in the waste gas. The first air pump 4 is driven to start, so that the waste gas in the filtering channel 12 enters the second conveying channel 29 through the first conveying channel 3. The second conveying channel 29 is arranged in an "S" shape in the lye tank 15, which can increase the contact area between the second conveying channel 29 and the lye in the lye tank 15. The waste gas in the second conveying channel 29 is discharged into the lye tank 15 through the aeration head 30, which can increase the contact area between the waste gas and the lye, increase the reaction speed between the waste gas and the lye, and thus improve the waste gas treatment efficiency and effect of the desulfurization tower. When backwashing the bag filter 10, the second air pump 14 is driven to start, so that the air outside the desulfurization tower body 1 blows and washes the bag filter 10 through the backwashing channel 13, which can remove the dust in the bag filter 10. The first motor 9 is driven to rotate, driving the star-shaped sewage discharge valve 8 to rotate, which can better discharge the dust in the belt filter. When replacing the bag filter 10, the second motor 11 is driven to rotate, controlling the first support block 16 to rotate, and thus moving the bag filter 10, which can facilitate the staff to quickly replace the bag filter 10, reduce the time required to replace the bag filter 10, and thus improve the working efficiency of the desulfurization tower. When the staff disassembles and assembles the bag filter 10, the third motor 17 is driven to rotate, driving the lead screw 19 to rotate, lifting the fourth support block 23, driving the third support block 22 to move, driving the second support block 21 to move, and thus moving the second insertion block 31 away from the first insertion slot 24 for disassembling and assembling the bag filter 10. The bag filter 10 is inserted on the first insertion block 28 through the second insertion slot 27, so that the bag filter 10 is movably installed on the first support block 16, which can facilitate the staff to disassemble and assemble the bag filter 10.

[0043] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A desulfurization tower for tail gas treatment, comprising a desulfurization tower body (1), characterized in that: The desulfurization tower body (1) is provided with a filter channel (12), a pair of bag filters (10) are movably provided in the filter channel (12), a pair of mounting blocks (5) are provided in the filter channel (12), a first slide groove (32) and a second slide groove (33) are provided on the mounting blocks (5), a pair of second sliders (26) and a pair of first sliders (25) are provided on the bag filter (10), and the bag filter (10) is slidably installed in the first slide groove (32) and the second slide groove (33) by means of the second sliders (26) and the first sliders (25). 33), the filtering channel (12) is connected to a first conveying channel (3), a first vacuum pump (4) is arranged on the first conveying channel (3), a first battery valve (2) is arranged on the first conveying channel (3) and on one side of the first vacuum pump (4), a second conveying channel (29) is connected to one end of the first conveying channel (3), an alkali liquid tank (15) is arranged in an "S" shape in the alkali liquid tank (15), and a plurality of aeration heads (30) are arranged on the second conveying channel (29).

2. A desulfurization tower for tail gas treatment according to claim 1, characterized in that: A second motor (11) is arranged in the desulfurization tower body (1) and below the alkali liquid bin (15); a first support block (16) is arranged on the driving end of the second motor (11); a pair of third motors (17) are arranged in the first support block (16); a screw rod (19) is arranged on the driving end of the third motor (17); a pair of fixed bins (18) are arranged on the lower wall surface of the first support block (16); the screw rod (19) is rotatably arranged in the fixed bin (18); a fourth support block (23) is movably arranged in the fixed bin (18); the screw rod (19) is screwed into the fourth support block (23).

3. A desulfurization tower for tail gas treatment according to claim 2, characterized in that: The fourth support block (23) is provided with a third support block (22), the third support block (22) is provided with a second support block (21), the second support block (21) is provided with a second plug block (31), the bag filter (10) is provided with a fixed block (20), the fixed block (20) is provided with a first slot (24), the second plug block (31) is movably arranged in the first slot (24), the bag filter (10) is provided with a second slot (27), the first support block (16) is provided with a pair of first plug blocks (28), and the bag filter (10) is plugged into the first plug block (28) through the second slot (27).

4. A desulfurization tower for tail gas treatment according to claim 3, characterized in that: The filtering channel (12) is connected to a backwash channel (13), and the backwash channel (13) is provided with a second air pump (14).

5. A desulfurization tower for tail gas treatment according to claim 4, characterized in that: The desulfurization tower body (1) is provided with a waste gas intake passage (6), the waste gas intake passage (6) is connected to the filter passage (12), and a second pneumatic valve (34) is provided on the waste gas intake passage (6).

6. A desulfurization tower for tail gas treatment according to claim 5, characterized in that: The filter channel (12) is connected to a sewage discharge channel (7), a first motor (9) is arranged in the desulfurization tower body (1), a star-shaped sewage discharge valve (8) is arranged on the driving end of the first motor (9), and the star-shaped sewage discharge valve (8) is rotatably arranged in the sewage discharge channel (7).

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