Spray tower for industrial waste gas treatment

Abstract

The invention relates to the technical field of industrial waste gas treatment, in particular to a spray tower for industrial waste gas treatment, which comprises a bracket, a tower body mounted on the bracket, an annular gas pipe connected to the lower part of the outer wall of the tower body, gas injection pipes connected to the annular gas pipe at intervals along the circumferential direction and extending into the tower body, a gas inlet pipe connected to the annular gas pipe, and a connecting plate connected to the lower part in the tower body, a connecting plate is rotationally connected to the connecting plate through a rotating shaft, a blocking ring used for blocking the gas injection pipe is connected to the connecting plate, and a gas inlet is formed in the blocking ring. The transmission assembly can be driven by the motor to drive the rotating shaft to intermittently rotate, so that the air inlets in the blocking ring can be sequentially aligned with the four air injection pipes on the annular air pipe, the entering direction of waste gas is automatically switched, and the situation that the waste gas only concentrates at the center or one side of a filler area to flow is avoided; particulate matters in the waste gas are prevented from tending to be attached to the same position of the filler, the risk of local blockage is reduced, the effective area of an airflow channel is increased, and the waste gas treatment efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial waste gas treatment, and particularly to a spray tower for industrial waste gas treatment. Background Art

[0002] A spray tower, also known as a scrubber or wet scrubber, is an air purification device used to remove harmful gas components and particulate matter from waste gas. It achieves the purification process of pollutants such as absorption, neutralization or oxidation by spraying a liquid (usually water or a chemical solution) into fine droplets and making them fully contact with the polluted gas entering the tower. The spray tower has various design forms, and the two common basic types are the packed tower and the plate tower. Among them, the packed tower is equipped with various types of packing to increase the gas-liquid contact area and improve the mass transfer efficiency.

[0003] Although the existing packed spray towers can achieve the purification treatment of waste gas, the existing packed spray towers still have the following defects: 1. Fixed waste gas inlet direction: In the traditional design of packed spray towers, the direction of the waste gas inlet is fixed, and the waste gas usually flows upward. Due to this fixed waste gas inlet direction mode, the waste gas may only concentrate on the center or one side of the packing area and flow. Over time, most of the particulate matter in the waste gas tends to adhere to the same position of the packing, causing local blockage, reducing the effective area of the gas flow channel, and lowering the treatment efficiency.

[0004] 2. Lack of an automatic mechanism for discharging the packing: Over time, a large amount of particulate matter and other pollutants will accumulate on the surface of the packing and need to be replaced regularly. However, the existing spray towers do not have the function of automatically discharging the packing, and manual disassembly and removal of the packing are required regularly. This process is not only time-consuming but also inconvenient, especially when the packing is located inside the spray tower. Summary of the Invention

[0005] The purpose of the present invention is to provide a spray tower for industrial waste gas treatment that not only has the function of automatically switching the waste gas inlet direction but also has the function of automatically discharging the packing to solve the above problems.

[0006] The present invention realizes the above object through the following technical solutions: A spray tower for industrial waste gas treatment, including a bracket, a tower body is installed on the bracket, a feed pipe is connected to the tower body at intervals in the vertical direction, a blocking member is provided on the feed pipe, a filter screen is connected to the tower body at intervals in the vertical direction, a spray pipe is connected to the tower body at intervals in the vertical direction, a circular air pipe is connected to the lower part of the outer wall of the tower body, injection pipes extending into the tower body are connected to the circular air pipe at intervals in the circumferential direction, an air inlet pipe is connected to the circular air pipe, a connecting plate is connected to the lower part of the tower body, a connecting plate is rotatably connected to the connecting plate through a rotating shaft, a blocking ring for blocking the injection pipe is connected to the connecting plate, an air inlet is opened on the blocking ring, a driving component for driving the rotating shaft to rotate is provided on the tower body, a screw conveyor is connected to the tower body at intervals in the vertical direction, an inner diamond-shaped rod one is rotatably connected between the filter screens, a scraper is connected to the inner diamond-shaped rod one at intervals in the vertical direction for scraping the filler into the screw conveyor, the top of the rotating shaft is connected to an inner diamond-shaped rod two, an outer diamond-shaped rod is arranged in the inner diamond-shaped rod two, and a pushing component for pushing the outer diamond-shaped rod to lift is provided on the tower body, and the outer diamond-shaped rod moves upward and inserts into the inner diamond-shaped rod one.

[0007] Preferably, the driving component includes a mounting shell, a motor and a transmission component. The mounting shell is installed on the lower side of the outer wall of the tower body and is communicated with the tower body. A motor is installed at the bottom of the mounting shell. The output shaft of the motor extends into the mounting shell, and the output shaft of the motor is in transmission connection with the rotating shaft through the transmission component.

[0008] Preferably, the pushing component includes a shell, an L-shaped lifting plate, a spring, an electric push rod and a push plate. The shell is installed on the lower side of the outer wall of the tower body and is communicated with the tower body. The L-shaped lifting plate is slidably connected in the shell. The outer diamond-shaped rod is rotatably connected to the L-shaped lifting plate. A spring for pushing the outer diamond-shaped rod to move upward and insert into the inner diamond-shaped rod one is arranged in the inner diamond-shaped rod two. An electric push rod is installed on the top of the mounting shell. A push plate for pushing the L-shaped lifting plate to move downward is connected to the telescopic rod of the electric push rod.

[0009] Preferably, the spray pipe includes a liquid injection pipe one, a circular pipe one, a liquid injection pipe two, a circular pipe two, a liquid outlet pipe and a spray head. The liquid injection pipe one is connected to the tower body, a circular pipe one located inside the tower body is connected to the liquid injection pipe one, a circular pipe two is connected to the inner side of the circular pipe one through the liquid injection pipe two, liquid outlet pipes are connected to the bottoms of the circular pipe one and the circular pipe two at intervals in the circumferential direction, and a spray head is rotatably connected to the lower part of the liquid outlet pipe.

[0010] Preferably, an impeller is connected inside the spray head.

[0011] Preferably, the blocking member includes a guide plate connected to the feed pipe. A feed hole matching the feed pipe is opened on the guide plate, and a blocking plate for blocking the feed pipe is slidably arranged inside the guide plate.

[0012] Preferably, a connecting rod is connected to the top of the blocking plate, an arc-shaped plate is connected to the connecting rod, and the arc-shaped plate is fixedly connected to the push plate.

[0013] Preferably, a conveying pipe is connected to the discharge port of the screw conveyor, and a discharge pipe is connected between the conveying pipes.

[0014] The present invention has the following advantages compared with the prior art: 1. The motor can drive the transmission component to drive the rotating shaft to rotate intermittently, so that the air inlet on the sealing ring can be aligned with the four injection pipes on the annular air pipe in sequence, realizing the automatic switching of the waste gas inlet direction, enabling the waste gas to enter the tower body from the front, back, left, and right directions in sequence, avoiding the waste gas from only concentrating on the center or one side of the packing area and flowing, preventing the particulate matter in the waste gas from tending to adhere to the same position of the packing, reducing the risk of local blockage, increasing the effective area of the air flow channel, and improving the waste gas treatment efficiency.

[0015] 2. The pushing component can push the outer diamond-shaped rod to move upward and insert into the first inner diamond-shaped rod. The outer diamond-shaped rod drives the first inner diamond-shaped rod to drive the scraper to rotate, scraping the packing on the filter screen into the screw conveyor, and the screw conveyor sends out the packing, achieving the effect of automatically sending out the packing, without manual disassembly and removal of the packing, facilitating the replacement of the packing, saving time and effort, and improving work efficiency.

[0016] 3. When the chemical solution enters the spray head, it impacts the impeller, causing the impeller to drive the spray head to rotate. The centrifugal force generated by the rotation of the spray head makes the chemical solution randomly fall to any area, thus expanding the spraying area, ensuring that the chemical solution can evenly and fully cover the packing area, guaranteeing that the gas can be evenly and fully sprayed, and further improving the overall effect of waste gas treatment. Description of the Drawings

[0017] Figure 1 is a schematic three-dimensional structure of the present invention Figure One .

[0018] Figure 2 is a cross-sectional view of the present invention.

[0019] Figure 3 is a partial schematic three-dimensional structure diagram of the pushing component of the present invention.

[0020] Figure 4 is a schematic three-dimensional structure diagram of the driving component and the pushing component of the present invention.

[0021] Figure 5 is a connection schematic diagram of the outer diamond-shaped rod, the second inner diamond-shaped rod, and the spring of the present invention.

[0022] Figure 6 is a schematic three-dimensional structure of the present invention Figure Two .

[0023] Figure 7 is a schematic three-dimensional structure diagram of the spray pipe of the present invention.

[0024] Figure 8 This is a schematic diagram of the connection between the nozzle and the impeller of the present invention.

[0025] The reference signs in the drawings are: 1 - support, 2 - tower body, 3 - feed pipe, 4 - guide plate, 41 - feed hole, 5 - plug plate, 6 - filter screen, 7 - spray pipe, 71 - injection pipe 1, 72 - annular pipe 1, 73 - injection pipe 2, 74 - annular pipe 2, 75 - liquid outlet pipe, 76 - nozzle, 8 - sealing ring, 81 - air inlet, 91 - connecting plate, 92 - rotating shaft, 93 - connecting plate, 94 - mounting shell, 95 - motor, 96 - transmission component, 10 - annular air pipe, 11 - injection gas pipe, 12 - intake pipe, 13 - screw conveyor, 14 - feed pipe, 15 - discharge pipe, 16 - inner diamond rod 1, 161 - scraper, 17 - housing, 18 - L-shaped lifting plate, 19 - outer diamond rod, 20 - inner diamond rod 2, 21 - spring, 22 - electric push rod, 23 - push plate, 24 - arc plate, 25 - connecting rod, 26 - impeller. Specific embodiments

[0026] The present application will be further described in detail below with reference to the accompanying drawings. It is necessary to point out here that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0027] Please refer to Figures 1 - 8, a spray tower for industrial waste gas treatment, comprising a bracket 1, on which a tower body 2 is installed. Two feed pipes 3 are connected to the front side of the tower body 2 at intervals in the vertical direction. A sealing member is provided on the front side of the feed pipe 3. The sealing member includes a guide plate 4 connected to the front side of the feed pipe 3. A feed hole 41 matching the feed pipe 3 is opened on the guide plate 4. A plug plate 5 for sealing the feed pipe 3 is slidably arranged in the guide plate 4. Two filter meshes 6 are connected to the tower body 2 at intervals in the vertical direction, and the two filter meshes 6 are respectively located below the two feed pipes 3. Two spray pipes 7 are connected to the tower body 2 at intervals in the vertical direction, and the two spray pipes 7 are respectively located above the two filter meshes 6. The spray pipe 7 includes a first liquid injection pipe 71, a first annular pipe 72, a second liquid injection pipe 73, a second annular pipe 74, a liquid outlet pipe 75 and a nozzle 76. There are two front and rear first liquid injection pipes 71, and the two front and rear first liquid injection pipes 71 are connected to the right side of the tower body 2. An inner first annular pipe 72 located inside the tower body 2 is connected between the two first liquid injection pipes 71. The inner side of the first annular pipe 72 is connected to a second annular pipe 74 through two front and rear second liquid injection pipes 73. The bottoms of the first annular pipe 72 and the second annular pipe 74 are both connected with liquid outlet pipes 75 at intervals along the circumferential direction. The lower part of the liquid outlet pipe 75 is rotatably connected with a nozzle 76, and an impeller 26 is connected inside the nozzle 76. The lower part of the outer wall of the tower body 2 is connected with an annular air pipe 10. Four air injection pipes 11 extending into the tower body 2 are connected to the annular air pipe 10 at intervals along the circumferential direction. An air inlet pipe 12 is connected to the right side of the annular air pipe 10. A cross-shaped connecting plate 91 is connected to the lower part inside the tower body 2. A rotating shaft 92 is rotatably connected to the connecting plate 91. A cross-shaped connecting plate 93 is connected to the rotating shaft 92. A sealing ring 8 for sealing the air outlet end of the air injection pipe 11 is connected to the connecting plate 93. An air inlet 81 is opened on the sealing ring 8. A driving component is provided on the tower body 2 for driving the rotating shaft 92 to rotate. The driving component includes a mounting shell 94, a motor 95 and a transmission component 96. The mounting shell 94 is installed on the lower left side of the tower body 2 and communicates with the tower body 2. The mounting shell 94 is located below the annular air pipe 10. A motor 95 is installed at the bottom of the mounting shell 94. The output shaft of the motor 95 extends into the mounting shell 94. The output shaft of the motor 95 is in transmission connection with the rotating shaft 92 through the transmission component 96. In a specific implementation, the transmission component 96 can be a chain transmission component, a belt transmission component, a synchronous belt transmission component, etc. Two screw conveyors 13 are connected to the rear side of the tower body 2 at intervals in the vertical direction, and the two screw conveyors 13 are respectively located above the two filter meshes 6. A feeding pipe 14 is connected to the discharge port of the screw conveyor 13. A discharge pipe 15 is connected between the two feeding pipes 14. An inner diamond-shaped rod 16 is rotatably connected between the two filter meshes 6. Two scraping plates 161 are connected to the inner diamond-shaped rod 16 at intervals in the vertical direction, and the two scraping plates 161 are respectively located above the two filter meshes 6. The top end of the rotating shaft 92 is connected with an inner diamond-shaped rod 20. An outer diamond-shaped rod 19 is slidably arranged inside the inner diamond-shaped rod 20. A pushing component is provided on the tower body 2 for pushing the outer diamond-shaped rod 19 to move up and down. When the outer diamond-shaped rod 19 moves up, it is inserted into the inner diamond-shaped rod 16.The pushing assembly includes a shell 17, an L-shaped lifting plate 18, a spring 21, an electric push rod 22 and a push plate 23. The shell 17 is installed on the lower left side of the tower body 2 and is connected to the tower body 2. The shell 17 is located on the upper side of the annular air pipe 10. The L-shaped lifting plate 18 is slidably connected in the shell 17. The outer diamond rod 19 is rotatably connected to the L-shaped lifting plate 18. The inner diamond rod 20 is provided with a spring 21. The two ends of the spring 21 are respectively connected to the inner diamond rod 20 and the outer diamond rod 19, and are used to push the outer diamond rod 19 to move upward and insert into the inner diamond rod 16. The shell 94 is installed. An electric push rod 22 is installed on the top, and a push plate 23 is connected to the telescopic rod of the electric push rod 22. The push plate 23 is located on the upper side of the L-shaped lifting plate 18 and contacts the top of the L-shaped lifting plate 18, and is used to push the L-shaped lifting plate 18 downward. The bottom surface of the mounting shell 94 is designed as an inclined surface to guide the impurities entering it back into the tower body 2 to avoid the impurities staying in the mounting shell 94 and hindering the lifting of the L-shaped lifting plate 18. The top of the blocking plate 5 is connected to an inverted U-shaped connecting rod 25, and the lower part of the inverted U-shaped connecting rod 25 is connected to an arc plate 24, and the arc plate 24 is fixedly connected to the push plate 23.

[0028] First, the electric push rod 22 is controlled to drive the push plate 23 to move upward, thereby driving the connecting rod 25 to move upward through the arc plate 24, and then driving the blocking plate 5 to move upward to release the blockage of the feed pipe 3. Then, the filler can be put into the tower body 2 through the feed pipe 3, and the filler is then located on the filter screen 6 and on the lower side of the feed pipe 3. Next, the electric push rod 22 is controlled to drive the push plate 23 to move downward, so that the blocking plate 5 moves downward to block the feed pipe 3 again. The push plate 23 moves downward to push the L-shaped lifting plate 18 downward, thereby driving the outer diamond rod 19 to move downward from the inner diamond rod 16, and the spring 21 is compressed accordingly. The exhaust gas discharge pipeline is connected to the intake pipe 12, and the exhaust gas is injected into the annular air pipe 10 through the intake pipe 12, and the exhaust gas is then injected into the tower body 2 through the injection pipe 11 that is not blocked by the blocking ring 8.

[0029] The control motor 95 works intermittently to drive the transmission assembly 96 to drive the rotating shaft 92 to rotate intermittently, thereby driving the sealing ring 8 to rotate intermittently through the connecting plate 93, so that the air inlet 81 on the sealing ring 8 can be aligned with the four air injection pipes 11 on the annular air pipe 10 in turn, realizing automatic switching of the exhaust gas entry direction, so that the exhaust gas can enter the tower body 2 from the front, back, left and right directions in turn, avoiding the exhaust gas from flowing only in the center or one side of the filler area, preventing the particulate matter in the exhaust gas from tending to adhere to the same position of the filler, reducing the risk of local blockage, increasing the effective area of ​​the air flow channel, and improving the exhaust gas treatment efficiency.

[0030] Connect the first liquid injection pipe 71 on the spray pipe 7 to an infusion device, and inject the chemical solution into the first annular pipe 72 through the first liquid injection pipe 71 by the infusion device. Inject the chemical solution into the second annular pipe 74 through the second liquid injection pipe 73. The chemical solution then enters the nozzle 76 through the liquid outlet pipe 75, and the nozzle 76 sprays the chemical solution downward. By utilizing the synergistic effect of the packing and the chemical solution, effective purification treatment of the waste gas is achieved. The purified gas is discharged through the exhaust port at the top of the tower body 2, and the waste liquid is discharged through the liquid discharge port at the bottom of the tower body 2. When the chemical solution enters the nozzle 76, it impacts the impeller 26, prompting the impeller 26 to drive the nozzle 76 to rotate. The centrifugal force generated by the rotation of the nozzle 76 causes the chemical solution to randomly fall to any area, thereby expanding the spraying area, ensuring that the chemical solution can evenly and fully cover the packing area, guaranteeing that the gas can be evenly and fully sprayed, and thus improving the overall effect of waste gas treatment.

[0031] When the packing needs to be replaced, control the electric push rod 22 to drive the push plate 23 to move upward. If the outer diamond rod 19 and the first inner diamond rod 16 are completely fitted at this time, the outer diamond rod 19 is directly pushed upward into the first inner diamond rod 16 by the reset action of the spring 21. If the outer diamond rod 19 is not completely fitted with the first inner diamond rod 16 at this time, after the outer diamond rod 19 is pushed upward by the spring 21 and contacts the first inner diamond rod 16, the outer diamond rod 19 stops moving upward, and the spring 21 remains in a compressed state. Subsequently, control the motor 95 to operate to drive the transmission component 96 to drive the rotating shaft 92 to rotate, thereby driving the outer diamond rod 19 to rotate through the second inner diamond rod 20. When the outer diamond rod 19 rotates to be completely fitted with the first inner diamond rod 16, the outer diamond rod 19 is pushed upward and inserted into the first inner diamond rod 16 under the reset action of the spring 21. After the outer diamond rod 19 is inserted into the first inner diamond rod 16, the rotation of the outer diamond rod 19 drives the first inner diamond rod 16 to drive the scraper 161 to rotate, scraping the packing on the filter screen 6 into the screw conveyor 13. Since the packing is located below the feed pipe 3, the packing will not be pushed into the feed pipe 3. The packing inside it is conveyed backward by the screw conveyor 13, and the packing is sent into the discharge pipe 15 through the conveying pipe 14 and finally discharged downward from the discharge pipe 15, achieving the effect of being able to automatically send out the packing, eliminating the need for manual disassembly and removal of the packing, facilitating the replacement of the packing, saving time and effort, and improving work efficiency.

[0032] The above-described embodiments only represent the preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several variations, improvements, and substitutions can still be made, and these all fall within the protection scope of the present invention.

Claims

1. A spray tower for industrial waste gas treatment, comprising a support (1), a tower body (2) is installed on the support (1), a feed pipe (3) is connected to the tower body (2) at intervals in the vertical direction, a blocking member is provided on the feed pipe (3), a filter screen (6) is connected to the tower body (2) at intervals in the vertical direction, and a spray pipe (7) is connected to the tower body (2) at intervals in the vertical direction, characterized in that, At the lower part of the outer wall of the tower body (2), an annular gas pipe (10) is connected. Along the circumferential direction of the annular gas pipe (10), injection gas pipes (11) extending into the tower body (2) are connected at intervals. An inlet gas pipe (12) is connected to the annular gas pipe (10). At the lower part inside the tower body (2), a connecting plate (91) is connected. A connecting plate (93) is rotatably connected to the connecting plate (91) through a rotating shaft (92). A sealing ring (8) for sealing the injection gas pipe (11) is connected to the connecting plate (93). An air inlet (81) is formed on the sealing ring (8). A driving assembly for driving the rotating shaft (92) to rotate is provided on the tower body (2). Along the vertical direction at intervals, screw conveyors (13) are connected to the tower body (2). An inner diamond-shaped rod one (16) is rotatably connected between the filter meshes (6). Along the vertical direction at intervals, scraping plates (161) are connected to the inner diamond-shaped rod one (16) for scraping the packing into the screw conveyor (13). The top end of the rotating shaft (92) is connected to an inner diamond-shaped rod two (20). An outer diamond-shaped rod (19) is arranged inside the inner diamond-shaped rod two (20). A pushing assembly for pushing the outer diamond-shaped rod (19) to move up and down is provided on the tower body (2). When the outer diamond-shaped rod (19) moves up, it is inserted into the inner diamond-shaped rod one (16).

2. The spray tower for industrial waste gas treatment according to claim 1, wherein, The driving assembly includes a mounting shell (94), a motor (95) and a transmission assembly (96). The mounting shell (94) is installed on the lower side of the outer wall of the tower body (2) and is communicated with the tower body (2). The motor (95) is installed at the bottom of the mounting shell (94). The output shaft of the motor (95) extends into the mounting shell (94). The output shaft of the motor (95) is in transmission connection with the rotating shaft (92) through the transmission assembly (96).

3. The spray tower for industrial waste gas treatment according to claim 2, wherein, The pushing assembly includes a shell (17), an L-shaped lifting plate (18), a spring (21), an electric push rod (22) and a push plate (23). The shell (17) is installed on the lower side of the outer wall of the tower body (2) and is communicated with the tower body (2). An L-shaped lifting plate (18) is slidably connected inside the shell (17). The outer diamond-shaped rod (19) is rotatably connected to the L-shaped lifting plate (18). A spring (21) for pushing the outer diamond-shaped rod (19) to move up and be inserted into the inner diamond-shaped rod one (16) is arranged inside the inner diamond-shaped rod two (20). The electric push rod (22) is installed at the top of the mounting shell (94). A push plate (23) for pushing the L-shaped lifting plate (18) to move down is connected to the telescopic rod of the electric push rod (22).

4. The spray tower for industrial waste gas treatment according to claim 3, characterized in that, The spray pipe (7) includes a liquid injection pipe one (71), an annular pipe one (72), a liquid injection pipe two (73), an annular pipe two (74), a liquid outlet pipe (75) and a spray head (76). The liquid injection pipe one (71) is connected to the tower body (2). An annular pipe one (72) located inside the tower body (2) is connected to the liquid injection pipe one (71). The annular pipe two (74) is connected to the inner side of the annular pipe one (72) through the liquid injection pipe two (73). Along the circumferential direction at intervals, liquid outlet pipes (75) are connected to the bottoms of the annular pipe one (72) and the annular pipe two (74). The lower part of the liquid outlet pipe (75) is rotatably connected to the spray head (76).

5. The spray tower for industrial waste gas treatment according to claim 4, characterized in that, An impeller (26) is connected inside the spray head (76).

6. The spray tower for industrial waste gas treatment according to claim 5, characterized in that, The plugging member includes a guide plate (4) connected to the feed pipe (3). A feed hole (41) matching the feed pipe (3) is formed in the guide plate (4). A plug plate (5) for plugging the feed pipe (3) is slidably arranged in the guide plate (4).

7. The spray tower for industrial waste gas treatment according to claim 6, characterized in that, A connecting rod (25) is connected to the top of the plug plate (5). An arc-shaped plate (24) is connected to the connecting rod (25). The arc-shaped plate (24) is fixedly connected to the push plate (23).

8. The spray tower for industrial waste gas treatment according to claim 7, characterized in that, A feed pipe (14) is connected to the discharge port of the screw conveyor (13). A discharge pipe (15) is connected between the feed pipes (14).

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