A spray tower for industrial waste gas treatment

Abstract

The application relates to the technical field of industrial waste gas treatment, and particularly relates to a spraying tower for industrial waste gas treatment, which comprises a support, a tower body is installed on the support, an annular air pipe is connected to the lower part of the outer wall of the tower body, gas injection pipes which extend into the tower body are connected to the annular air pipe at intervals in the circumferential direction, an air inlet pipe is connected to the annular 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 gas injection pipes is connected to the connecting plate, and an air inlet is formed in the blocking ring. The motor can drive the transmission assembly to intermittently rotate the rotating shaft, so that the air inlets on the blocking ring can be aligned with the four gas injection pipes on the annular air pipe in sequence, the switching of the waste gas entering direction is realized automatically, the waste gas is prevented from flowing only in the center or on one side of the filler area, the particulate matters in the waste gas are prevented from tending to adhere to the same position of the filler, the risk of local blockage is reduced, the effective area of the airflow channel is increased, and the waste gas treatment efficiency is improved.

Description

TECHNICAL FIELD

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

[0002] The spray tower, also known as a scrubbing tower or a wet scrubber, is an air purification device used to remove harmful gas components and particulate matters in waste gas. It achieves the purification process of absorption, neutralization or oxidation by spraying liquid (usually water or chemical solution) into fine droplets to fully contact with the contaminated gas entering the tower. The spray tower has various design forms, and the common ones are two basic types of packed tower and 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 tower can achieve the purification treatment of waste gas, the existing packed spray tower still has the following defects:

[0004] 1. Fixed direction of waste gas entering: In the design of the traditional packed spray tower, the direction of the waste gas inlet is fixed, and the waste gas usually flows upwards. Due to this fixed mode of waste gas entering direction, the waste gas may only flow in the center or one side of the packing area. Over a long period of time, most of the particulate matters in the waste gas tend to adhere to the same position of the packing, causing local blockage, reducing the effective area of the airflow passage, and reducing the treatment efficiency.

[0005] 2. Lack of automatic packing sending mechanism: With the passage of time, the packing surface will accumulate a large amount of particulate matters and other pollutants, which need to be replaced regularly. However, the existing spray tower does not have the function of automatically sending the packing, and manual disassembly and removal of the packing are required regularly, which is not only time-consuming but also inconvenient, especially when the packing is located inside the spray tower. SUMMARY

[0006] The purpose of the present application is to provide a spray tower for industrial waste gas treatment which has the functions of automatically switching the direction of waste gas entering and automatically sending the packing.

[0007] The application achieves the above-mentioned purpose through the following technical scheme: a spray tower for industrial waste gas treatment, comprising a support, a tower body installed on the support, a feed pipe connected to the tower body in a vertical direction, a blocking piece arranged on the feed pipe, a filter screen connected to the tower body in a vertical direction, a spray pipe connected to the tower body in a vertical direction, a ring-shaped air pipe connected to the lower part of the outer wall of the tower body, an air injection pipe connected to the ring-shaped air pipe and extending into the tower body, an air inlet pipe connected to the ring-shaped air pipe, a connecting plate connected to the lower part of the tower body, a connecting plate rotatably connected to the connecting plate through a rotating shaft, a blocking ring connected to the connecting plate and used for blocking the air injection pipe, an air inlet arranged on the blocking ring, a driving assembly arranged on the tower body and used for driving the rotating shaft to rotate, a screw conveyor connected to the tower body in a vertical direction, an inner rhombic rod one rotatably connected between the filter screens, a scraper connected to the inner rhombic rod one in a vertical direction and used for scraping the filler into the screw conveyor, an inner rhombic rod two connected to the top end of the rotating shaft, an outer rhombic rod arranged in the inner rhombic rod two, a pushing assembly arranged on the tower body and used for pushing the outer rhombic rod to move up and down, and the outer rhombic rod is inserted into the inner rhombic rod one when the outer rhombic rod moves up.

[0008] Preferably, the driving assembly comprises a mounting shell, a motor and a transmission assembly, the mounting shell is mounted on the lower side of the outer wall of the tower body and communicates with the tower body, the motor is mounted 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 assembly.

[0009] Preferably, the pushing assembly comprises a shell, an L-shaped lifting plate, a spring, an electric push rod and a push plate, the shell is mounted on the lower side of the outer wall of the tower body and communicates with the tower body, the L-shaped lifting plate is slidably connected in the shell, the outer rhombic rod is rotatably connected to the L-shaped lifting plate, the inner rhombic rod two is provided with the spring used for pushing the outer rhombic rod to move up and be inserted into the inner rhombic rod one, the electric push rod is mounted at the top of the shell, and the push plate used for pushing the L-shaped lifting plate to move down is connected to the telescopic rod of the electric push rod.

[0010] Preferably, the spray pipe comprises a liquid injection pipe one, a ring-shaped pipe one, a liquid injection pipe two, a ring-shaped pipe two, a liquid outlet pipe and a spray head, the liquid injection pipe one is connected to the tower body, the ring-shaped pipe one is connected to the liquid injection pipe one and located in the tower body, the ring-shaped pipe two is connected to the liquid injection pipe two through the inner side of the ring-shaped pipe one, the ring-shaped pipe one and the ring-shaped pipe two are both connected with the liquid outlet pipes in a circumferential direction at the bottom, and the liquid outlet pipes are rotatably connected with the spray head at the lower part.

[0011] Preferably, the spray head is connected with an impeller.

[0012] Preferably, the blocking piece comprises a guide plate connected to the feed pipe, the guide plate is provided with a feed hole matched with the feed pipe, and the guide plate is slidably provided with a blocking plate used for blocking the feed pipe.

[0013] Preferably, the top of the blocking plate is connected with a connecting rod, the connecting rod is connected with an arc-shaped plate, and the arc-shaped plate is fixedly connected to the push plate.

[0014] Preferably, a conveying pipe is connected at the discharge port of the screw conveyor, and a discharge pipe is connected between the conveying pipes.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] 1. The motor can drive the transmission assembly to intermittently rotate the rotating shaft, so that the air inlet on the blocking ring can be aligned with the four gas injection pipes on the annular gas pipe in turn, realizing automatic switching of the direction of the exhaust gas entering the tower body, so that the exhaust gas can enter the tower body from the front, back, left and right directions in turn, avoiding the exhaust gas flowing only in the center or on one side of the filler area, preventing the particulate matter in the exhaust gas from adhering to the same position of the filler, reducing the risk of local blockage, increasing the effective area of the airflow passage, and improving the exhaust gas treatment efficiency.

[0017] 2. The pushing assembly can push the outer rhombic rod upwards to insert into the inner rhombic rod I, and the outer rhombic rod can drive the inner rhombic rod I to rotate the scraper, so that the filler on the filter screen can be scraped into the screw conveyor, and the filler can be sent out by the screw conveyor, achieving the effect of automatically sending out the filler without manual disassembly and removal of the filler, so as to facilitate the replacement of the filler, save time and effort, and improve work efficiency.

[0018] 3. When the chemical solution enters the nozzle, it impacts the impeller, causing the impeller to rotate the nozzle, and the centrifugal force generated by the rotation of the nozzle causes the chemical solution to randomly fall to any area, thereby expanding the spraying area and ensuring that the chemical solution can uniformly and fully cover the filler area, ensuring that the gas can be uniformly and fully sprayed, thereby improving the overall effect of the exhaust gas treatment. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a perspective view of the present application Figure 1 .

[0020] Figure 2 is a sectional view of the present application.

[0021] Figure 3 is a partial perspective view of the pushing assembly of the present application.

[0022] Figure 4 is a perspective view of the driving assembly and the pushing assembly of the present application.

[0023] Figure 5 is a connection diagram of the outer rhombic rod, the inner rhombic rod II and the spring of the present application.

[0024] Figure 6 is a perspective view of the present application Figure 2 .

[0025] Figure 7The three-dimensional structure diagram of the spray pipe of the application.

[0026] Figure 8 The connection diagram of the spray head and the impeller of the application.

[0027] The marks in the drawings are: 1-bracket, 2-tower body, 3-feeding pipe, 4-guide plate, 41-feeding hole, 5-plugging plate, 6-filter screen, 7-spray pipe, 71-liquid injection pipe one, 72-annular pipe one, 73-liquid injection pipe two, 74-annular pipe two, 75-liquid outlet pipe, 76-spray head, 8-sealing ring, 81-air inlet, 91-connection plate, 92-rotating shaft, 93-connection plate, 94-mounting shell, 95-motor, 96-transmission assembly, 10-annular air pipe, 11-gas injection pipe, 12-gas inlet pipe, 13-screw conveyor, 14-feeding pipe, 15-discharging pipe, 16-inner rhombic rod one, 161-scraping plate, 17-housing, 18-L-shaped lifting plate, 19-outer rhombic rod, 20-inner rhombic rod two, 21-spring, 22-electric push rod, 23-pushing plate, 24-arc-shaped plate, 25-linkage, 26-impeller. DETAILED DESCRIPTION

[0028] The application will be described in further detail below with reference to the drawings. It is necessary to point out here that the following detailed description is only used to further illustrate the application and cannot be understood as limiting the protection scope of the application. Those skilled in the art can make some non-essential improvements and adjustments to the application according to the above application content.

[0029] Please refer to Figures 1-8The utility model provides an industry waste gas handles with spray tower, including support 1, the tower body 2 is installed on support 1, and the tower body 2 front side is connected with two feed pipes 3 along the vertical direction interval, and the feed pipe 3 front side is equipped with the obturator, and the obturator includes the guide plate 4 connected in the feed pipe 3 front side, and the guide plate 4 is opened with the feed hole 41 that matches with the feed pipe 3 on, and the guide plate 4 is slidably equipped with the blocking plate 5 for blocking the feed pipe 3 in, and the tower body 2 is connected with two filter screens 6 along the vertical direction interval in, and two filter screens 6 are located below two feed pipes 3 respectively, and the tower body 2 is connected with two spray pipes 7 along the vertical direction interval in, and two spray pipes 7 are located above two filter screens 6 respectively, and the spray pipe 7 includes liquid injection pipe one 71, annular pipe one 72, liquid injection pipe two 73, annular pipe two 74, liquid outlet pipe 75 and shower head 76, and the liquid injection pipe one 71 is equipped with front and back two, and the front and back two liquid injection pipe one 71 are connected in the right side of tower body 2, and the annular pipe one 72 that is located in the tower body 2 is connected between two liquid injection pipe one 71, and the annular pipe one 72 inside is connected with annular pipe two 74 through front and back two liquid injection pipe two 73, and the bottom of annular pipe one 72 and annular pipe two 74 is connected with liquid outlet pipe 75 along the circumference interval, and the liquid outlet pipe 75 lower part rotatablely connected with shower head 76, and the shower head 76 is connected with the impeller 26 in, and the annular gas pipe 10 is connected on the tower body 2 outer wall lower part, and the annular gas pipe 10 is connected with the gas injection pipe 11 that extends into the tower body 2 along the circumference interval on, and the annular gas pipe 10 right side is connected with the gas inlet pipe 12, and the cross-shaped connecting plate 91 is connected in the tower body 2 inner lower part, and the rotating shaft 92 rotatablely connected with the connecting plate 91 on, and the connecting plate 93 of cross-shaped is connected on the rotating shaft 92, and the obturator ring 8 for blocking the gas injection pipe 11 gas outlet end is connected on the connecting plate 93, and the obturator ring 8 is opened with the gas inlet 81 on, and the drive assembly for driving the rotating shaft 92 rotation is equipped on the tower body 2, and the drive assembly includes installation shell 94, motor 95 and transmission assembly 96, and the installation shell 94 is installed in the left lower side of tower body 2 and is communicated with tower body 2, and the installation shell 94 is located in the lower side of annular gas pipe 10, and the motor 95 is installed on the installation shell 94 bottom, and the output shaft of motor 95 extends into the installation shell 94, and the output shaft of motor 95 is drivenly connected with the rotating shaft 92 through transmission assembly 96, and in the specific implementation, transmission assembly 96 can be chain transmission assembly, belt transmission assembly, synchronous belt transmission assembly etc.The pushing assembly comprises a housing 17, an L-shaped lifting plate 18, a spring 21, an electric push rod 22 and a pushing plate 23, the housing 17 is installed on the lower left side of the tower body 2 and communicates with the tower body 2, the housing 17 is located on the upper side of the annular air pipe 10, the L-shaped lifting plate 18 is slidingly connected in the housing 17, the outer rhombic rod 19 is rotatably connected on the L-shaped lifting plate 18, the spring 21 is arranged in the inner rhombic rod 20, the two ends of the spring 21 are connected with the inner rhombic rod 20 and the outer rhombic rod 19 respectively, and the spring 21 is used for pushing the outer rhombic rod 19 to move upwards and insert into the inner rhombic rod 1 6, the top of the installation shell 94 is provided with the electric push rod 22, the telescopic rod of the electric push rod 22 is connected with the pushing plate 23, the pushing 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 the pushing plate 23 is used for pushing the L-shaped lifting plate 18 to move downwards, the bottom surface of the installation shell 94 is designed as an inclined surface, so as to guide the impurities entering the installation shell 94 back to the tower body 2, and the impurities are prevented from staying in the installation shell 94 to hinder the lifting of the L-shaped lifting plate 18, the top of the blocking plate 5 is connected with an inverted U-shaped connecting rod 25, the lower part of the inverted U-shaped connecting rod 25 is connected with an arc-shaped plate 24, and the arc-shaped plate 24 is fixedly connected with the pushing plate 23.

[0030] Firstly, the electric push rod 22 is controlled to drive the pushing plate 23 to move upwards, so as to drive the connecting rod 25 to move upwards through the arc-shaped plate 24, and then drive the blocking plate 5 to move upwards to unblock the feeding pipe 3. Then, the filler can be put into the tower body 2 through the feeding pipe 3, and the filler is located on the filter screen 6 and on the lower side of the feeding pipe 3. Then, the electric push rod 22 is controlled to drive the pushing plate 23 to move downwards, so that the blocking plate 5 moves downwards to block the feeding pipe 3 again. The pushing plate 23 pushes the L-shaped lifting plate 18 to move downwards, so that the outer rhombic rod 19 moves out of the inner rhombic rod 1 6 downwards, and the spring 21 is compressed. The waste gas discharge pipeline is communicated with the air inlet pipe 12, the waste gas is injected into the annular air pipe 10 through the air inlet pipe 12, and then the waste gas is injected into the tower body 2 through the unblocked gas injection pipe 1 1 of the blocking ring 8.

[0031] The electric motor 95 is controlled to work intermittently, so as to drive the transmission assembly 96 to drive the rotating shaft 92 to rotate intermittently, so as to drive the blocking ring 8 to rotate intermittently through the connecting plate 93, so that the air inlets 81 on the blocking ring 8 can be aligned with the four gas injection pipes 1 1 on the annular air pipe 10 in turn, the automatic switching of the waste gas entering direction is realized, the waste gas can enter the tower body 2 from the front, rear, left and right directions in turn, the waste gas is prevented from flowing only in the center or on one side of the filler area, the particulate matters in the waste gas are prevented from adhering to the same position of the filler, the risk of local blockage is reduced, the effective area of the airflow channel is increased, and the waste gas treatment efficiency is improved.

[0032] The liquid injection pipe one 71 on the spray pipe 7 is connected with the liquid delivery device, the chemical solution is injected into the annular pipe one 72 through the liquid delivery device and the liquid injection pipe one 71, the chemical solution is injected into the annular pipe two 74 through the liquid injection pipe two 73, the chemical solution enters the spray head 76 through the liquid outlet pipe 75, and the spray head 76 sprays the chemical solution downward. By the synergistic effect of the filler and the chemical solution, the waste gas is effectively purified and treated, and the purified gas is discharged through the gas outlet at the top of the tower body 2, and the waste liquid is discharged through the liquid outlet at the bottom of the tower body 2. When the chemical solution enters the spray head 76, it impacts the impeller 26, which drives the impeller 26 to rotate the spray head 76. The centrifugal force generated by the rotation of the spray head 76 causes the chemical solution to randomly fall to any area, thereby expanding the spraying area and ensuring that the chemical solution can uniformly and fully cover the filler area, ensuring that the gas can be uniformly and fully sprayed, thereby improving the overall effect of waste gas treatment.

[0033] When the filler needs to be replaced, the electric push rod 22 is controlled to drive the push plate 23 to move upward. If the outer rhombic rod 19 and the inner rhombic rod one 16 are completely fitted at this time, the outer rhombic rod 19 is directly pushed upward into the inner rhombic rod one 16 by the restoring action of the spring 21. If the outer rhombic rod 19 is not completely fitted with the inner rhombic rod one 16 at this time, when the outer rhombic rod 19 is pushed upward by the spring 21 and contacts the inner rhombic rod one 16, the outer rhombic rod 19 stops moving upward, and the spring 21 remains in a compressed state. Then the motor 95 is controlled to work to drive the transmission assembly 96 to rotate the rotating shaft 92, thereby driving the outer rhombic rod 19 to rotate through the inner rhombic rod two 20. When the outer rhombic rod 19 is rotated to completely fit with the inner rhombic rod one 16, the outer rhombic rod 19 is pushed upward and inserted into the inner rhombic rod one 16 under the restoring action of the spring 21. After the outer rhombic rod 19 is inserted into the inner rhombic rod one 16, the outer rhombic rod 19 is rotated to drive the inner rhombic rod one 16 to rotate the scraper 161, and the filler on the filter screen 6 is scraped into the screw conveyor 13. Since the filler is located on the lower side of the feed pipe 3, the filler will not be pushed into the feed pipe 3. The filler is conveyed backward in the screw conveyor 13, the filler is sent into the discharge pipe 15 through the feed pipe 14, and finally discharged downward from the discharge pipe 15. The effect of automatically sending out the filler is achieved, without the need for manual disassembly and removal of the filler for replacement, which saves time and effort and improves work efficiency.

[0034] The above-described embodiments only express the preferred embodiments of the present application, which are described in detail and specifically, but cannot be understood as limiting the scope of the patent of the present application. It should be noted that for ordinary skilled persons in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present application, which are within the protection scope of the present application.

Claims

1. A spray tower for industrial waste gas treatment, comprising a support (1), a tower body (2) mounted on the support (1), feed pipes (3) spaced apart along the vertical direction on the tower body (2), a sealing component provided on the feed pipes (3), filter screens (6) spaced apart along the vertical direction inside the tower body (2), and spray pipes (7) spaced apart along the vertical direction inside the tower body (2), characterized in that, The outer wall of the tower body (2) is connected with an annular air pipe (10) at the lower part, the annular air pipe (10) is connected with gas injection pipes (11) extending into the tower body (2) at intervals in the circumferential direction, the annular air pipe (10) is connected with a gas inlet pipe (12), the lower part of the tower body (2) is connected with a connecting plate (91), the connecting plate (91) is rotatably connected with a connecting plate (93) through a rotating shaft (92), the connecting plate (93) is connected with a blocking ring (8) for blocking the gas injection pipes (11), the blocking ring (8) is provided with a gas inlet (81), the tower body (2) is provided with a driving assembly for driving the rotating shaft (92) to rotate, the tower body (2) is connected with a screw conveyor (13) at intervals in the vertical direction, the filter screens (6) are rotatably connected with an inner rhombic rod (16), the inner rhombic rod (16) is connected with scraper plates (161) at intervals in the vertical direction, the scraper plates (161) are used for scraping the filler into the screw conveyor (13), the top end of the rotating shaft (92) is connected with an inner rhombic rod (20), the inner rhombic rod (20) is provided with an outer rhombic rod (19), the tower body (2) is provided with a pushing assembly for pushing the outer rhombic rod (19) to move up and down, the outer rhombic rod (19) is inserted into the inner rhombic rod (16); The driving assembly comprises a mounting shell (94), a motor (95) and a transmission assembly (96), the mounting shell (94) is mounted on the lower side of the outer wall of the tower body (2) and communicates with the tower body (2), the motor (95) is mounted at the bottom of the mounting shell (94), the output shaft of the motor (95) extends into the mounting shell (94), and the output shaft of the motor (95) is in transmission connection with the rotating shaft (92) through the transmission assembly (96); The pushing assembly comprises 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 mounted on the lower side of the outer wall of the tower body (2) and communicates with the tower body (2), the L-shaped lifting plate (18) is slidably connected in the shell (17), the outer rhombic rod (19) is rotatably connected to the L-shaped lifting plate (18), the inner rhombic rod (20) is provided with the spring (21) for pushing the outer rhombic rod (19) to move upwards and be inserted into the inner rhombic rod (16), the electric push rod (22) is mounted at the top of the mounting shell (94), and the telescopic rod of the electric push rod (22) is connected with the push plate (23) for pushing the L-shaped lifting plate (18) to move downwards; The blocking member comprises a guide plate (4) connected to the feed pipe (3), the guide plate (4) is provided with a feed hole (41) matched with the feed pipe (3), the guide plate (4) is slidably provided with a blocking plate (5) for blocking the feed pipe (3), the top of the blocking plate (5) is connected with a connecting rod (25), the connecting rod (25) is connected with an arc-shaped plate (24), and the arc-shaped plate (24) is fixedly connected to the push plate (23).

2. The spray tower for treating industrial exhaust gas according to claim 1, characterized by The spray pipe (7) comprises a liquid injection pipe I (71), an annular pipe I (72), a liquid injection pipe II (73), an annular pipe II (74), a liquid outlet pipe (75) and a spray head (76), the liquid injection pipe I (71) is connected to the tower body (2), the liquid injection pipe I (71) is connected with the annular pipe I (72) located in the tower body (2), the inner side of the annular pipe I (72) is connected with the annular pipe II (74) through the liquid injection pipe II (73), the bottom of the annular pipe I (72) and the annular pipe II (74) are both connected with the liquid outlet pipe (75) at intervals in the circumferential direction, and the lower part of the liquid outlet pipe (75) is rotatably connected with the spray head (76).

3. The spray tower for treating industrial exhaust gas according to claim 2, characterized by The spray head (76) is connected with an impeller (26) inside.

4. The spray tower for treating industrial exhaust gas according to claim 3, characterized by The discharge port of the screw conveyor (13) is connected with a conveying pipe (14), and the conveying pipes (14) are connected with a discharge pipe (15).

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