Spray washing device for chemical waste gas purification

Abstract

The invention relates to the technical field of spray towers, and provides a spray washing device for chemical waste gas purification, the spray washing device comprises a tower body, a spray bin, a waste gas uniform distribution mechanism, a filler bin and a stirring mechanism, the tower body is cylindrical, the bottom of the tower body is provided with a gas supply bin, the spray bin is arranged on the tower body, the spray bin is arranged above the gas supply bin, and the stirring mechanism is arranged above the gas supply bin. The waste gas uniform distribution mechanism is fixedly connected with the tower body, the waste gas uniform distribution mechanism is arranged in the gas supply bin and the spraying bin, the waste gas uniform distribution mechanism is used for enabling waste gas to uniformly rise in the spraying bin, the multiple filler bins are arranged above the spraying bin, the filler bins are filled with filler, each filler bin is internally provided with one stirring mechanism, and the stirring mechanisms are used for stirring the waste gas uniformly in the spraying bin. By means of the technical scheme, the problem that in the prior art, an existing spraying washing device is prone to insufficient waste gas treatment is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of spray towers, and specifically, to a spray washing device for chemical waste gas purification. Background Art

[0002] A spray washing tower is a device widely used in industrial waste gas treatment. It mainly removes pollutants in the waste gas through the contact between a liquid (usually water or a chemical solution) and the waste gas. The working principle is to atomize the liquid into fine droplets by a spray system, fully contact with the waste gas, and transfer the pollutants from the gas phase to the liquid phase through physical absorption, chemical reaction or dissolution, so as to achieve the purpose of purifying the waste gas. Usually, the outer shell is set in a tower shape, the waste gas is introduced below the tower, the liquid is sprayed above the tower, and fillers are filled in the tower. The liquid sprayed on the fillers can increase the downward flow time of the liquid in the tower and at the same time increase the contact area with the waste gas. The waste gas is discharged from the top of the tower. During the upward movement of the waste gas in the tower, it fully contacts with the liquid. The liquid cools the waste gas and filters the dust in the waste gas. When the waste gas is a chemical waste gas, the waste gas can be treated by adjusting the liquid composition.

[0003] In the existing fillers in the spray washing towers for treating chemical waste gas, many use plastic balls, ceramic rings, etc. The waste gas pipe extends into the tower, and the waste gas is introduced into the tower through the waste gas pipe. During the upward movement of the waste gas, it gradually disperses. This process makes the fillers near the pipe orifice of the waste gas pipe contact more with the waste gas. These fillers are more likely to be blocked by dust or oil, which affects the gas-liquid contact efficiency of the fillers, thereby reducing the waste gas treatment efficiency, and may also cause the untreated waste gas to be discharged. Therefore, in order to improve the efficiency and effect of waste gas treatment, we propose a spray washing device for chemical waste gas purification. Summary of the Invention

[0004] The present invention proposes a spray washing device for chemical waste gas purification, which solves the problem that the existing spray washing device in the prior art is prone to incomplete treatment of waste gas.

[0005] The technical solution of the present invention is as follows: A spray washing device for purifying chemical industrial waste gas, comprising a tower body, a spray chamber, a waste gas distribution mechanism, a packing chamber and a turning mechanism. The tower body is set in a cylindrical shape. A gas supply chamber is opened at the bottom of the tower body. The spray chamber is opened on the tower body and is arranged above the gas supply chamber. The waste gas distribution mechanism is fixedly connected with the tower body and is arranged in the gas supply chamber and the spray chamber. The waste gas distribution mechanism is used to make the waste gas rise evenly in the spray chamber. There are multiple packing chambers, and the multiple packing chambers are arranged above the spray chamber. Packing is filled in the packing chambers. One turning mechanism is arranged in each packing chamber, and the multiple turning mechanisms are connected. The turning mechanism is used to turn the packing in the packing chamber.

[0006] The waste gas distribution mechanism includes a gas guide pipe, a filter cylinder and an exhaust assembly. The gas guide pipe is arranged in the gas supply chamber. One end of the gas guide pipe extending out of the gas supply chamber is connected and communicated with an external waste gas pipeline. The filter cylinder is arranged on one end of the gas guide pipe extending out of the gas supply chamber in the gas guide pipe. The exhaust assembly is arranged in the spray chamber and is connected and communicated with the gas guide pipe. The exhaust assembly is used to make the waste gas discharge evenly in the spray chamber. The exhaust assembly includes a shunt pipe, an exhaust pipe and evenly distributed teeth. There are multiple shunt pipes, and the multiple shunt pipes are all set in a ring shape. The multiple shunt pipes are sleeved and communicated with each other. The shunt pipe is connected and communicated with the gas guide pipe. There are multiple exhaust pipes, and the exhaust pipes are fixedly connected to the bottom of the shunt pipe. The evenly distributed teeth are arranged around one end of the exhaust pipe far from the shunt pipe.

[0007] There is spray liquid in the spray chamber. The exhaust pipe extends into the liquid level of the spray liquid. A liquid discharge channel is opened on the side of the spray chamber, and a liquid discharge valve is fixedly connected to the liquid discharge channel. A ventilation net, an air outlet pipe, a motor, a spray pipe and a liquid supply pipe are arranged on the tower body. The ventilation net is fixedly arranged on one side of the packing chamber close to the spray chamber, and the packing is placed on the ventilation net. The air outlet pipe is fixedly connected to the top of the tower body. The motor is fixedly installed on the top of the tower body, and the output end of the motor is connected with the turning mechanism. One spray pipe is fixedly connected to one side of each packing chamber close to the motor. Multiple spray nozzles are opened on one side of the spray pipe close to the spray chamber. The liquid supply pipe is fixedly arranged on the outer side of the tower body and is connected and communicated with each spray pipe.

[0008] The turning mechanism includes a fixed pipe, a transmission rod, a rotating sleeve and a turning shovel assembly. The fixed pipe is arranged in the center of the ventilation net. The transmission rod is rotatably arranged in the fixed pipe and fixedly connected to the output end of the motor. The rotating sleeve is rotatably connected to the fixed pipe and fixedly connected to the transmission rod. The turning shovel assembly is fixedly connected to the rotating sleeve and is in contact with the upper side of the ventilation net. The turning shovel assembly is used to turn the filler in the filler bin.

[0009] Among multiple turning mechanisms, the fixed pipe in the turning mechanism located above the tower body is fixedly connected to the top of the tower body, and the fixed pipes in other turning mechanisms are fixedly connected to the upper ventilation net.

[0010] The turning shovel mechanism includes a first shovel body and a second shovel body. The first shovel body is fixedly connected to the rotating sleeve and is inclined. The first shovel body is in contact with the ventilation net. The second shovel body is fixedly connected to the lower side of the first shovel body and is inclined. The second shovel body is not in contact with the first shovel body. A support wheel is rotatably connected to the side of the first shovel body close to the ventilation net, and the support wheel is in contact with the ventilation net. Water troughs are provided on both the first shovel body and the second shovel body.

[0011] The working principle and beneficial effects of the present invention are as follows: 1. In the present invention, by setting the shunt pipe and the exhaust pipe, due to the atmospheric pressure, an equal amount of gas will be discharged from each exhaust pipe at the same time. At the same time, the equalizing teeth are arranged circumferentially, so that the gas discharged from the exhaust pipe will be evenly discharged around the exhaust pipe and float upward through the liquid. Through the setting of multiple exhaust pipes and equalizing teeth, the gas is evenly discharged upward in the spray chamber. The gas is preliminarily filtered for dust and cooled through the liquid, reducing the amount of dust in contact with the filler. At the same time, the liquid stored in the spray chamber after passing through the entire tower body reacts with the chemical waste gas preferentially; 2. In the present invention, by setting the first shovel body and the second shovel body, when the first shovel body rotates, the first shovel body turns up all the fillers on the ventilation net. The fillers above the filler bin first move to the space between the first shovel body and the second shovel body through the first shovel body. After the fillers fall on the second shovel body, they fall on the ventilation net. The blocking of the fillers by the second shovel body can prevent the fillers behind the rotation direction from flowing a large amount to the rear of the first shovel body when the first shovel body rotates, so that the fillers above the fillers shoveled by the first shovel body can fall on the ventilation net preferentially; 3. In the present invention, by setting the waste gas even distribution mechanism, the waste gas is first treated by the liquid step by step, and at the same time, the uniform discharge of the waste gas is controlled by the atmospheric pressure. By setting the turning mechanism, the filler can be turned up and down, so that the side of the filler with less contact with the waste gas comes into contact with the waste gas, improving the waste gas treatment efficiency. Brief Description of the Drawings

[0012] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0013] Figure 1 It is a schematic structural diagram of the whole in the present invention; Figure 2 It is a schematic internal sectional view structure diagram of the air supply bin in the present invention; Figure 3 It is a schematic structure diagram of another perspective of the internal section of the air supply bin in the present invention; Figure 4 It is a schematic internal sectional view structure diagram of the spray bin in the present invention; Figure 5 It is a schematic internal sectional view structure diagram of the turning mechanism cooperating with the spray bin in the present invention; Figure 6 It is a schematic partial sectional view structure diagram of the cooperation between the first shovel body and the second shovel body in the present invention.

[0014] In the figure: 1, tower body; 2, air supply bin; 3, spray bin; 4, packing bin; 5, air guide pipe; 6, filter cartridge; 7, shunt pipe; 8, exhaust pipe; 9, equalizing teeth; 10, liquid discharge channel; 11, liquid discharge valve; 12, ventilation net; 13, air outlet pipe; 14, motor; 15, spray pipe; 16, liquid supply pipe; 17, fixed pipe; 18, transmission rod; 19, rotating sleeve; 20, first shovel body; 21, second shovel body; 22, support wheel; 23, water trough. Specific Embodiments

[0015] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of the present invention.

[0016] Such as Figures 1 to 6As shown in the figure, this embodiment proposes a spray washing device for chemical waste gas purification, which includes a tower body 1, a spray chamber 3, an exhaust gas distribution mechanism, a packing chamber 4 and a turning mechanism. The tower body 1 is set in a cylindrical shape, and an air supply chamber 2 is opened at the bottom of the tower body 1. The spray chamber 3 is opened on the tower body 1, and the spray chamber 3 is arranged above the air supply chamber 2. The exhaust gas distribution mechanism is fixedly connected to the tower body 1 and is arranged in the air supply chamber 2 and the spray chamber 3. The exhaust gas distribution mechanism is used to make the exhaust gas rise evenly in the spray chamber 3. There are multiple packing chambers 4, and the multiple packing chambers 4 are arranged above the spray chamber 3. Packings are filled in the packing chambers 4, and a turning mechanism is arranged in each packing chamber 4. The multiple turning mechanisms are connected. The turning mechanism is used to turn the packings in the packing chamber 4. The exhaust gas is preliminarily filtered by the exhaust gas distribution mechanism, and at the same time, the exhaust gas is first introduced into the liquid accumulated by spraying in the spray chamber 3. The gas is evenly discharged through air pressure and evenly contacts the packings at various positions. Then, the turning mechanism turns the packings to make the packings rotate, avoiding blockage of the upper part of the packings and affecting the treatment efficiency. After turning the packings, the gas-liquid contact effect is enhanced.

[0017] As Figures 1 to 3As shown in the figure, the waste gas distribution mechanism includes an air guide pipe 5, a filter cartridge 6, and an exhaust assembly. The air guide pipe 5 is arranged in the air supply chamber 2. One end of the air guide pipe 5 extending out of the air supply chamber 2 is connected to an external waste gas pipeline. The filter cartridge 6 is arranged on the end of the air guide pipe 5 extending out of the air supply chamber 2. The exhaust assembly is arranged in the spray chamber 3 and is connected to the air guide pipe 5. The exhaust assembly is used to evenly discharge the waste gas in the spray chamber 3. The exhaust assembly includes a shunt pipe 7, an exhaust pipe 8, and an equalizing tooth 9. There are multiple shunt pipes 7, and multiple shunt pipes 7 are all arranged in a ring shape. Multiple shunt pipes 7 are sleeved and connected to each other. The shunt pipe 7 is connected to the air guide pipe 5. There are multiple exhaust pipes 8, and the exhaust pipes 8 are fixedly connected to the bottom of the shunt pipe 7. The equalizing tooth 9 is arranged around one end of the exhaust pipe 8 away from the shunt pipe 7. The air guide pipe 5 is arranged below the spray chamber 3. The waste gas is preliminarily filtered by the filter cartridge 6 arranged in the air guide pipe 5 to remove some dust therein, enhancing the service life of the packing. The exhaust pipes 8 are evenly distributed in the spray chamber 3. The exhaust pipes 8 are all connected to each other and extend below the liquid level, so that after the waste gas is introduced into the exhaust pipe 8 through the air guide pipe 5, the liquid is pushed out of the exhaust pipe 8 by air pressure. Due to the atmospheric pressure, an equal amount of gas will be discharged from each exhaust pipe 8 at the same time. At the same time, the equalizing tooth 9 is arranged in a circle, so that the gas discharged from the exhaust pipe 8 will be evenly discharged around the exhaust pipe 8 and float upward through the liquid. Through the arrangement of multiple exhaust pipes 8 and the equalizing tooth 9, the gas is evenly discharged upward in the spray chamber 3. The gas passes through the liquid for preliminary dust filtration and temperature reduction, reducing the amount of dust in contact with the packing. At the same time, the liquid stored in the spray chamber 3 after passing through the entire tower body 1 preferentially reacts with the chemical waste gas, which can improve the reaction efficiency and treatment effect of the liquid and the waste gas in the packing chamber 4 subsequently.

[0018] As Figures 1 to 3As shown, there is spray liquid in the spray chamber 3, the exhaust pipe 8 extends below the liquid level of the spray liquid, a liquid discharge channel 10 is provided on the side of the spray chamber 3, a liquid discharge valve 11 is fixedly connected to the liquid discharge channel 10, an air vent net 12, an air outlet pipe 13, a motor 14, a spray pipe 15 and a liquid supply pipe 16 are arranged on the tower body 1. The air vent net 12 is fixedly arranged on one side of the packing chamber 4 close to the spray chamber 3, the packing is placed on the air vent net 12, the air outlet pipe 13 is fixedly connected to the top of the tower body 1, the motor 14 is fixedly installed on the top of the tower body 1, the output end of the motor 14 is connected to the turning mechanism. A spray pipe 15 is fixedly connected to one side of each packing chamber 4 close to the motor 14. A plurality of spray nozzles are arranged on the side of the spray pipe 15 close to the spray chamber 3. The liquid supply pipe 16 is fixedly arranged outside the tower body 1, and the liquid supply pipe 16 is communicated with each spray pipe 15. The spray nozzles on the spray pipe 15 are evenly arranged to evenly spray the liquid on the packing. The liquid supply pipe 16 can be communicated with an external liquid supply channel and the liquid discharge channel 10. The liquid in the spray chamber 3 can be reused or clean liquid provided externally can be used. The liquid volume and liquid level height in the spray chamber 3 can be controlled through the liquid discharge valve 11.

[0019] As Figures 3 to 6 shown, the turning mechanism includes a fixed pipe 17, a transmission rod 18, a rotating sleeve 19 and a turning shovel assembly. The fixed pipe 17 is arranged in the center of the air vent net 12. The transmission rod 18 is rotatably arranged in the fixed pipe 17. The transmission rod 18 is fixedly connected to the output end of the motor 14. The rotating sleeve 19 is rotatably connected to the fixed pipe 17. The rotating sleeve 19 is fixedly connected to the transmission rod 18. The turning shovel assembly is fixedly connected to the rotating sleeve 19. The turning shovel assembly is attached to the upper side of the air vent net 12. The turning shovel assembly is used to turn the packing in the packing chamber 4. Two turning shovel assemblies are arranged on each rotating sleeve 19. The motor 14 drives the turning shovel assembly to rotate through the transmission rod 18. At the same time, by arranging the rotating sleeve 19, liquid can be prevented from entering the fixed pipe 17.

[0020] As Figures 4 to 5 shown, among multiple turning mechanisms, the fixed pipe 17 in the turning mechanism above the tower body 1 is fixedly connected to the top of the tower body 1, and the fixed pipes 17 in other turning mechanisms are fixedly connected to the upper air vent net 12.

[0021] As Figures 4 to 6As shown in the figure, the turning shovel mechanism includes shovel body 1 20 and shovel body 2 21. Shovel body 1 20 is fixedly connected to the rotating sleeve 19. Shovel body 1 20 is inclined. Shovel body 1 20 is in contact with the ventilation net 12. Shovel body 2 21 is fixedly connected to the lower side of shovel body 1 20. Shovel body 2 21 is inclined. Shovel body 2 21 is not in contact with shovel body 1 20. A support wheel 22 is rotatably connected to the side of shovel body 1 20 close to the ventilation net 12. The support wheel 22 is in contact with the ventilation net 12. Drainage grooves 23 are provided on both shovel body 1 20 and shovel body 2 21. When shovel body 1 20 does not rotate, the packing material is near shovel body 1 20 and shovel body 2 21. The liquid can flow through the packing material through the drainage grooves 23. When shovel body 1 20 rotates, shovel body 1 20 turns up all the packing material on the ventilation net 12. The packing material above the packing bin 4 first moves through shovel body 1 20 to between shovel body 1 20 and shovel body 2 21. After the packing material falls on shovel body 2 21, it falls on the ventilation net 12. By blocking the packing material by shovel body 2 21, it can prevent a large amount of the packing material behind the rotation direction from flowing to the rear of shovel body 1 20 when shovel body 1 20 rotates. It can make the upper packing material in the packing material shoveled by shovel body 1 20 fall on the ventilation net 12 first, so that the packing material is turned over up and down, so that the packing material makes gas-liquid contact with different sides, improving the gas-liquid contact efficiency and reducing the maintenance period.

[0022] In this embodiment, the waste gas is introduced into the shunt pipe 7 through the air guide pipe 5. The filter cartridge 6 preliminarily filters the waste gas. Then the waste gas is discharged in the liquid through the exhaust pipe 8. The gas is discharged evenly upward. The gas contacts the packing material after passing through the ventilation net 12. The spray pipe 15 sprays the liquid to treat the waste gas. The output end of the motor 14 drives the transmission rod 18 to rotate. The transmission rod 18 drives the rotating sleeve 19 to rotate. Shovel body 1 20 shovels up the packing material. The packing material falls on shovel body 2 21 in sequence and then slides onto the ventilation net 12, so that the packing material is turned over at different angles and heights.

[0023] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A spray washing device for purifying chemical industrial waste gas, characterized in that, Including: Tower body (1), the tower body (1) is set to be cylindrical, and an air supply chamber (2) is opened at the bottom of the tower body (1); Spray chamber (3), the spray chamber (3) is opened on the tower body (1), and the spray chamber (3) is arranged above the air supply chamber (2); Exhaust gas even distribution mechanism, the exhaust gas even distribution mechanism is fixedly connected with the tower body (1), the exhaust gas even distribution mechanism is arranged in the air supply chamber (2) and the spray chamber (3), and the exhaust gas even distribution mechanism is used to make the exhaust gas rise evenly in the spray chamber (3); Packing chamber (4), a plurality of packing chambers (4) are provided, the plurality of packing chambers (4) are arranged above the spray chamber (3), and packing is filled in the packing chamber (4); Turning mechanism, one turning mechanism is arranged in each packing chamber (4), the plurality of turning mechanisms are connected, and the turning mechanism is used to turn the packing in the packing chamber (4).

2. The spray washing device for chemical waste gas purification according to claim 1, characterized in that, The exhaust gas even distribution mechanism includes: Air duct (5), the air duct (5) is arranged in the air supply chamber (2), and one end of the air duct (5) extending out of the air supply chamber (2) is connected with an external exhaust gas pipeline; Filter cylinder (6), the filter cylinder (6) is arranged on one end of the air duct (5) extending out of the air supply chamber (2); Exhaust component, the exhaust component is arranged in the spray chamber (3), the exhaust component is connected with the air duct (5), and the exhaust component is used to make the exhaust gas discharge evenly in the spray chamber (3).

3. The spray washing device for chemical waste gas purification according to claim 2, wherein, The exhaust component includes: Diversion pipes (7), a plurality of diversion pipes (7) are provided, the plurality of diversion pipes (7) are all set to be annular, the plurality of diversion pipes (7) are sleeved and communicated with each other, and the diversion pipe (7) is connected with the air duct (5); Exhaust pipes (8), a plurality of exhaust pipes (8) are provided, and the exhaust pipes (8) are fixedly connected to the bottom of the diversion pipe (7); Equalizing teeth (9), the equalizing teeth (9) are arranged around one end of the exhaust pipe (8) far from the diversion pipe (7).

4. The spray washing device for chemical waste gas purification according to claim 3, wherein, There is spray liquid in the spray chamber (3), the exhaust pipe (8) extends below the liquid level of the spray liquid, a liquid discharge channel (10) is opened on the side of the spray chamber (3), and a liquid discharge valve (11) is fixedly connected to the liquid discharge channel (10).

5. A spray washing device for purifying chemical industrial waste gas according to claim 4, characterized in that, On the tower body (1) are provided: Ventilation net (12), the ventilation net (12) is fixedly arranged on the side of the packing chamber (4) close to the spray chamber (3), and the packing is placed on the ventilation net (12); Outlet pipe (13), the outlet pipe (13) is fixedly connected to the top of the tower body (1); Motor (14), the motor (14) is fixedly installed on the top of the tower body (1), and the output end of the motor (14) is connected with the turning mechanism; Spray pipe row (15), one spray pipe row (15) is fixedly connected to the side of each packing chamber (4) close to the motor (14), and a plurality of spray nozzles are opened on the side of the spray pipe row (15) close to the spray chamber (3). A liquid supply pipe (16), the liquid supply pipe (16) is fixedly arranged outside the tower body (1), and the liquid supply pipe (16) is communicated with each of the spray pipes (15).

6. The spray washing device for purifying chemical industrial waste gas according to claim 5, wherein, The turning mechanism includes: A fixed pipe (17), the fixed pipe (17) is arranged in the center of the ventilation net (12); A transmission rod (18), the transmission rod (18) is rotatably arranged in the fixed pipe (17), and the transmission rod (18) is fixedly connected to the output end of the motor (14); A rotating sleeve (19), the rotating sleeve (19) is rotatably connected to the fixed pipe (17), and the rotating sleeve (19) is fixedly connected to the transmission rod (18); A turning shovel assembly, the turning shovel assembly is fixedly connected to the rotating sleeve (19), the turning shovel assembly is attached to the upper side of the ventilation net (12), and the turning shovel assembly is used to turn the packing in the packing bin (4).

7. The spray washing device for chemical waste gas purification according to claim 6, wherein, Among the multiple turning mechanisms, the fixed pipe (17) in the turning mechanism located above the tower body (1) is fixedly connected to the top of the tower body (1), and the fixed pipes (17) in the other turning mechanisms are fixedly connected to the upper ventilation net (12).

8. The spray washing device for chemical waste gas purification according to claim 7, characterized in that, The turning shovel mechanism includes: A first shovel body (20), the first shovel body (20) is fixedly connected to the rotating sleeve (19), the first shovel body (20) is inclined, and the first shovel body (20) is in contact with the ventilation net (12); A second shovel body (21), the second shovel body (21) is fixedly connected to the lower side of the first shovel body (20), the second shovel body (21) is inclined, and the second shovel body (21) is not in contact with the first shovel body (20).

9. The spray washing device for chemical waste gas purification according to claim 8, wherein, A support wheel (22) is rotatably connected to the side of the first shovel body (20) close to the ventilation net (12), the support wheel (22) is in contact with the ventilation net (12), and water through grooves (23) are formed in both the first shovel body (20) and the second shovel body (21).

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