A spray washing device for industrial exhaust gas purification

Abstract

The utility model discloses a kind of industrial waste gas purification is washed with spraying device, including washing tower, filler box, spraying mechanism, demister, detergent mixing bin, mixing mechanism;Washing tower bottom side is equipped with air inlet, top is equipped with exhaust port, washing tower middle part is equipped with filler installation bin, filler installation bin is fixedly connected with washing tower by bolt nut, filler installation bin is communicated with washing tower and filler installation bin side is designed as opening, filler box is installed in filler installation bin and is fixedly connected with filler installation bin by bolt nut, spraying mechanism is installed in located filler box top, demister is installed in washing tower exhaust port bottom, detergent mixing bin is located in washing tower side, mixing mechanism is installed in detergent mixing bin. The utility model can quickly complete the replacement of filler without removing large structure, guarantee the continuous stable operation of waste gas purification system, through mixing mechanism, make new and old washing liquid fast mixing even, keep the stability of waste gas purification effect.

Description

Technical Field

[0001] This utility model belongs to the field of industrial waste gas scrubbing technology, and specifically relates to a spray scrubbing device for industrial waste gas purification. Background Technology

[0002] Industrial waste gas scrubbing towers are one of the key pieces of equipment for air pollution control, and are widely used in many industries such as chemical, metallurgical, and electroplating. They remove pollutants such as dust and acidic gases by having a scrubbing liquid come into contact with the waste gas. However, most existing technologies generally face problems such as blockage of the packing layer due to the adhesion of impurities, and rapid decline in efficiency due to the recycling of the scrubbing liquid. This directly leads to technical bottlenecks such as reduced equipment purification efficiency, slow operation and maintenance, and poor continuous treatment effect.

[0003] According to the prior art announcement number CN223505047U, a scrubbing tower for industrial waste gas is described. In this prior art, the spraying water causes impurities in the waste gas to adhere to the purification packing layer. With long-term operation, this can easily form a caking layer, which can cause blockage of the purification packing layer and reduce the effect and efficiency of waste gas purification.

[0004] Further search revealed that, according to prior art announcement number CN223517280U, a waste gas scrubbing tower for industrial waste gas treatment is used. In this prior art, water vapor causes impurities in the waste gas to adhere to the packing and ventilator. Over long-term operation, this can easily form a slab layer, resulting in blockage of the packing and ventilator, thus reducing the effectiveness and efficiency of waste gas purification. Furthermore, the scrubbing liquid gradually becomes saturated after reacting with the waste gas, significantly weakening its reaction capacity. The circulation component allows the scrubbing liquid to be reused repeatedly, which accelerates the deterioration of the scrubbing liquid. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a spray washing device for industrial waste gas purification. It can quickly replace the packing without dismantling a large structure, ensuring the continuous and stable operation of the waste gas purification system. Through the mixing mechanism, the new and old washing liquids are quickly and evenly mixed to maintain the stability of the waste gas purification effect.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An industrial waste gas purification spray scrubbing device includes a scrubbing tower, a packing box, a spraying mechanism, a demister, a detergent mixing chamber, and a mixing mechanism. The scrubbing tower has an air inlet on one side of its bottom and an exhaust outlet on its top. A packing installation chamber is located in the middle of the scrubbing tower and is fixedly connected to the scrubbing tower by bolts and nuts. The packing installation chamber is connected to the scrubbing tower and has an open design on one side. The packing box is installed inside the packing installation chamber and is fixedly connected to the packing installation chamber by bolts and nuts. The spraying mechanism is installed at the top of the packing box. The demister is installed at the bottom of the exhaust outlet of the scrubbing tower. The detergent mixing chamber is located on one side of the scrubbing tower, and the mixing mechanism is installed inside the detergent mixing chamber.

[0008] The packing box is provided with multiple sets of mounting plates, which are fixedly installed inside the packing box. The mounting plates divide the packing box into multiple layers, and the packing fills the layers. The mounting plates and the upper and lower side plates of the packing box are provided with several sets of filter holes. One side of the packing box is provided with a groove, and a sealing plate is provided in the groove. The sealing plate is slidably connected to the packing box through the groove. The packing box is provided with a handle on the side that is fixedly connected to the packing installation chamber.

[0009] The spraying mechanism includes a fixed pipe; the fixed pipe is located at the top of the packing box and is fixedly connected to the inner wall of the washing tower. Several sets of nozzles are provided at the bottom and side walls of the fixed pipe. A water pipe I is provided on one side of the fixed pipe. One end of the water pipe I is connected to the fixed pipe, and the other end of the water pipe I is connected to the detergent mixing chamber. A water pump I is provided on the water pipe I.

[0010] The detergent mixing chamber includes a water pipe II; the detergent mixing chamber is located on one side of the washing tower, with an inlet at the top and an outlet at the bottom of one side; a filter box is located at the top of the detergent mixing chamber, which is connected to the detergent mixing chamber; a filter screen is installed inside the filter box, which is inserted into the filter box and can be replaced periodically; the filter box is connected to the washing tower via water pipe II, and a water pump II is installed on water pipe II.

[0011] The mixing mechanism includes motor I, a rotating shaft, motor II, a bidirectional lead screw, a fixed ring, connecting rod I, connecting rod II, and a sliding ring; a fixed rod is provided at the top of the detergent mixing chamber, the rotating shaft is located inside the detergent mixing chamber and is rotatably connected to the fixed rod, one end of the rotating shaft passes through the bottom of the detergent mixing chamber, motor I is installed at the bottom of the detergent mixing chamber, the output shaft of motor I is fixedly connected to the rotating shaft, a protective cover is provided on the outside of motor I, two sets of fixed frames are provided on the rotating shaft, the fixed frames are located inside the detergent mixing chamber and are correspondingly arranged, and several sets of stirring frames are provided between the two sets of fixed frames, the stirring frames are rotatably connected to the fixed frames;

[0012] The rotating shaft is designed as a hollow structure with several sets of sliding grooves on its side wall. The middle part of the rotating shaft is designed as a disconnection and is fixedly connected by bolts and nuts, which facilitates the subsequent installation and maintenance of the sliding ring.

[0013] The bidirectional lead screw is rotatably installed inside the rotating shaft. One end of the bidirectional lead screw passes through the top of the detergent mixing chamber. Motor II is installed on the top of the detergent mixing chamber. The output shaft of motor II is fixedly connected to the bidirectional lead screw. A protective shell is provided on the outside of motor II. Two sets of fixing rings are provided on the rotating shaft. The two sets of fixing rings are located inside the detergent mixing chamber and are correspondingly arranged. Several sets of connecting rods II are provided. The fixing rings are hinged to connecting rods II and connecting rods I. Two sets of sliding rings are provided. The sliding rings are threadedly connected to the bidirectional lead screw. The side wall of the sliding ring passes through the sliding groove and is hinged to connecting rod I. A stirring blade is provided on one side of both connecting rods II and connecting rod I. Bellows-type protective covers are provided at both ends of the sliding rings. The bellows-type protective covers are located inside the rotating shaft and are sleeved on the bidirectional lead screw.

[0014] The motor II is a reversible motor.

[0015] The advantages of this utility model compared with the prior art are as follows:

[0016] 1) By removing the bolts and nuts that fix the stuffing box to the stuffing installation chamber, pull the handle to pull out the stuffing box, open the sealing plate on one side of the stuffing box to replace the stuffing. Clean the stuffing box before replacement; the stuffing can be replaced quickly without dismantling large structures, ensuring the continuous and stable operation of the exhaust gas purification system.

[0017] 2) Motor I drives the rotating shaft to rotate, and the fixed frame, stirring frame and stirring blades revolve, which accelerates the mixing speed of new and old washing liquids. Motor II drives the bidirectional lead screw to rotate forward and backward, so that connecting rod I and connecting rod II continuously expand and retract. While the stirring blades revolve, they periodically move radially, so that the old washing liquid at the bottom of the detergent mixing chamber and the new washing liquid at the top can be convected, so that the new and old washing liquids are quickly and evenly mixed, ensuring that the detergent activity is consistent and maintaining the stability of the exhaust gas purification effect. Attached Figure Description

[0018] Appendix Figure 1 This is a schematic diagram of a spray scrubbing device for purifying industrial waste gas according to this utility model.

[0019] Appendix Figure 2 It is attached Figure 1 Schematic diagram of the internal structure of the washing tower;

[0020] Appendix Figure 3 It is attached Figure 2 Schematic diagram of the middle stuffing box structure;

[0021] Appendix Figure 4 It is attached Figure 2 Schematic diagram of the central spraying mechanism;

[0022] Appendix Figure 5 It is attached Figure 1Schematic diagram of the detergent mixing chamber structure;

[0023] Appendix Figure 6 It is attached Figure 5 Schematic diagram of the location of the mixing mechanism;

[0024] Appendix Figure 7 It is attached Figure 6 Schematic diagram of the hybrid mechanism Figure 1 ;

[0025] Appendix Figure 8 It is attached Figure 6 Schematic diagram of the hybrid mechanism Figure 2 ;

[0026] Appendix Figure 9 It is attached Figure 8 Schematic diagram of a bidirectional lead screw structure;

[0027] In the diagram: 1. Scrubber; 101. Air inlet; 102. Exhaust outlet; 103. Packing installation chamber; 2. Packing box; 21. Sealing plate; 22. Groove; 23. Handle; 24. Mounting plate; 3. Spraying mechanism; 31. Water pipe I; 32. Water pump I; 33. Fixed pipe; 34. Spray head; 4. Demister; 5. Detergent mixing chamber; 51. Chemical inlet; 52. Chemical outlet; 53. Water pipe II; 54. Water pump II; 55. Filter box; 56. Filter screen; 57. Fixed rod; 6. Mixing mechanism; 61. Motor I; 62. Fixed frame; 63. Stirring frame; 64. Rotating shaft; 6401. Sliding groove; 65. Motor II; 66. Bidirectional lead screw; 67. Fixed ring; 68. Connecting rod I; 69. Connecting rod II; 610. Stirring blade; 611. Sliding ring; 612. Bellows-style protective cover. Detailed Implementation

[0028] To facilitate understanding by those skilled in the art, the following is a detailed explanation in conjunction with the appendix. Figure 1-9 The technical solution of this utility model will be further described in detail below.

[0029] An industrial waste gas purification spray scrubbing device includes a scrubbing tower 1, a packing box 2, a spraying mechanism 3, a demister 4, a detergent mixing chamber 5, and a mixing mechanism 6. The scrubbing tower 1 has an air inlet 101 on one side of its bottom and an exhaust outlet 102 on its top. A packing installation chamber 103 is located in the middle of the scrubbing tower 1. The packing installation chamber 103 is fixedly connected to the scrubbing tower 1 by bolts and nuts. The packing installation chamber 103 is connected to the scrubbing tower 1 and has an open design on one side. The packing box 2 is installed in the packing installation chamber 103 and fixedly connected to the packing installation chamber 103 by bolts and nuts. The spraying mechanism 3 is installed at the top of the packing box 2. The demister 4 is installed at the bottom of the exhaust outlet 102 of the scrubbing tower 1. The detergent mixing chamber 5 is located on one side of the scrubbing tower 1, and the mixing mechanism 6 is installed in the detergent mixing chamber 5.

[0030] It should be emphasized that the demister 4 is a baffle plate type demister, which is obtained by purchase or private customization. The baffle plate type demister adopts a multi-stage baffle design and achieves droplet separation by abrupt change in airflow direction. This is existing technology and will not be described in detail here.

[0031] The packing box 2 is provided with multiple sets of mounting plates 24. The mounting plates 24 are fixedly installed in the packing box 2 and divide the packing box 2 into multiple sets of sandwich layers. The packing is filled in the sandwich layers. The mounting plates 24 and the upper and lower side plates of the packing box 2 are provided with several sets of filter holes. The packing box 2 is provided with a groove 22 on one side. A sealing plate 21 is provided in the groove 22. The sealing plate 21 is slidably connected to the packing box 2 through the groove 22. A handle 23 is provided on the side of the packing box 2 that is fixedly connected to the packing installation chamber 103.

[0032] The spraying mechanism 3 includes a fixed pipe 33; the fixed pipe 33 is located at the top of the packing box 2 and is fixedly connected to the inner wall of the washing tower 1. The bottom and side walls of the fixed pipe 33 are provided with several sets of nozzles 34. A water pipe I 31 is provided on one side of the fixed pipe 33. One end of the water pipe I 31 is connected to the fixed pipe 33, and the other end of the water pipe I 31 is connected to the detergent mixing chamber 5. A water pump I 32 is provided on the water pipe I 31.

[0033] The detergent mixing chamber 5 includes a water pipe II 53; the detergent mixing chamber 5 is located on one side of the washing tower 1, the top of the detergent mixing chamber 5 is provided with a drug inlet 51, the bottom of one side of the detergent mixing chamber 5 is provided with a drug outlet 52, the top of the detergent mixing chamber 5 is provided with a filter box 55, the filter box 55 is connected to the detergent mixing chamber 5, the filter box 55 is provided with a filter screen 56, the filter screen 56 is inserted into the filter box 55, and the filter screen 56 can be replaced periodically. The filter box 55 is connected to the washing tower 1 through the water pipe II 53, and the water pipe II 53 is provided with a water pump II 54.

[0034] As described above, industrial waste gas enters the scrubbing tower 1 through the inlet 101. The purified liquid in the detergent mixing chamber 5 is driven by the water pump I32 and pumped into the fixed pipe 33 through the water pipe I31. It is then sprayed downwards from the nozzle 34. During the upward process, the waste gas comes into contact with the sprayed scrubbing liquid in the opposite direction and passes through the packing box 2. The interlayer of the packing box 2 is filled with packing, which greatly increases the contact area between the waste gas and the scrubbing liquid. The dust and soluble pollutants in the waste gas react fully with the scrubbing liquid. When the purified gas passes through the demister 4, the droplets carried in it are separated from the gas due to the multiple changes in the flow direction. The dry and clean gas is finally discharged from the exhaust port 102 in compliance with the standards.

[0035] The washing liquid after spraying is collected at the bottom of the tower and extracted by water pump II54. It is then pumped into filter box 55 through water pipe II53. Filter screen 56 filters the impurities remaining in the washing liquid. The filtered washing liquid enters detergent mixing chamber 5 for reuse and is replenished with new detergent through inlet 51 to maintain purification efficiency.

[0036] After the stuffing box 2 and the packing become clogged due to the adhesion of impurities, the stuffing box 2 can be pulled out by removing the bolts and nuts that fix the stuffing box 2 and the packing installation chamber 103, pulling the handle 23, opening the sealing plate 21 on one side of the stuffing box 2, and replacing the packing. The stuffing box 2 should be cleaned before replacement.

[0037] The mixing mechanism 6 includes a motor I 61, a rotating shaft 64, a motor II 65, a bidirectional lead screw 66, a fixed ring 67, a connecting rod I 68, a connecting rod II 69, and a sliding ring 611. A fixed rod 57 is provided at the top of the detergent mixing chamber 5. The rotating shaft 64 is located inside the detergent mixing chamber 5 and is rotatably connected to the fixed rod 57. One end of the rotating shaft 64 passes through the bottom of the detergent mixing chamber 5. The motor I 61 is installed at the bottom of the detergent mixing chamber 5. The output shaft of the motor I 61 is fixedly connected to the rotating shaft 64. A protective cover is provided on the outside of the motor I 61. Two sets of fixed frames 62 are provided on the rotating shaft 64. The fixed frames 62 are located inside the detergent mixing chamber 5 and are correspondingly arranged. Several sets of stirring frames 63 are provided between the two sets of fixed frames 62. The stirring frames 63 are rotatably connected to the fixed frames 62.

[0038] The rotating shaft 64 is designed as a hollow structure and has several sets of sliding grooves 6401 on its side wall. The middle part of the rotating shaft 64 is designed as a disconnection and is fixedly connected by bolts and nuts, which facilitates the subsequent installation and maintenance of the sliding ring 611.

[0039] The bidirectional lead screw 66 is rotatably mounted inside the rotating shaft 64. One end of the bidirectional lead screw 66 passes through the top of the detergent mixing chamber 5. The motor II 65 is mounted on the top of the detergent mixing chamber 5. The output shaft of the motor II 65 is fixedly connected to the bidirectional lead screw 66. A protective shell is provided on the outside of the motor II 65. Two sets of fixing rings 67 are provided on the rotating shaft 64. The two sets of fixing rings 67 are located inside the detergent mixing chamber 5 and are arranged correspondingly. Several sets of connecting rods II 69 are provided. The fixing rings 67 are hinged to the connecting rods II 69, and the connecting rods II 69 are hinged to the connecting rods I 68. Two sets of sliding rings 611 are provided. The sliding rings 611 are threadedly connected to the bidirectional lead screw. The side wall of the sliding rings 611 passes through the sliding groove 6401 and is hinged to the connecting rods I 68. A stirring blade 610 is provided on one side of both the connecting rods II 69 and I 68. Bellows-type protective covers 612 are provided at both ends of the sliding rings 611. The bellows-type protective covers 612 are located inside the rotating shaft 64 and are sleeved on the bidirectional lead screw 66.

[0040] The motor II65 is a reversible motor;

[0041] As can be seen from the above description, the washing liquid will gradually become saturated after reacting with the exhaust gas, and its reaction capacity will be greatly weakened. Repeated use of the washing liquid will accelerate its failure. In order to maintain the stability of the exhaust gas purification effect, it is necessary to periodically discharge part of the saturated waste liquid through the discharge port 52 and replenish new washing liquid through the inlet port 51.

[0042] After adding new detergent, motor I 61 drives the rotating shaft 64 to rotate, and the fixed frame 62, stirring frame 63 and stirring blade 610 revolve, so that the new and old detergent in the detergent mixing chamber 5 form a main circulation, which accelerates the mixing speed of the new and old detergent. Motor II 65 drives the bidirectional lead screw 66 to rotate forward and backward, which drives the two sliding rings 611 to move towards or away from each other along the sliding groove 6401, so that connecting rod I 68 and connecting rod II 69 continuously expand and retract. While the stirring blade revolves, it periodically moves radially, so that the old detergent at the bottom of the detergent mixing chamber 5 and the new detergent at the top will generate convection, so that the new and old detergents are quickly and evenly mixed, maintaining the stability of the exhaust gas purification effect.

[0043] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," "top," "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of this invention, the connection methods are divided into fixed connection and movable connection. Fixed connection methods include, but are not limited to, welding and bolting; movable connection methods include, but are not limited to, sliding connection, rotating connection and threaded connection. The connection method to achieve the desired effect should be selected according to the application of the solution.

[0045] In summary, the power systems, including but not limited to motors, water pumps, demisters, and their respective transmission systems, are equipped with protective covers according to their actual installation locations, and sealing rings are provided at the relative rotational connections to prevent wear or damage to the power and transmission systems caused by the external environment, thereby further ensuring the normal operation of the power and transmission systems.

[0046] In summary, the electronic or electrical components, including but not limited to motors, water pumps, and demisters, are existing components that are custom-made or purchased. The electrical connections between these components are conventional circuit or electrical connections in the prior art and are not within the scope of protection of this invention. Furthermore, each component operates through an external power supply.

[0047] The above description is merely an example and illustration of the structure created by this invention. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, they should all fall within the protection scope of this invention.

Claims

1. A spray scrubbing device for purifying industrial waste gas, comprising a scrubbing tower, a packing box, a spraying mechanism, a demister, a detergent mixing chamber, and a mixing mechanism; characterized in that... The washing tower has an air inlet on one side of the bottom and an exhaust outlet on the top. A packing installation chamber is located in the middle of the washing tower. The packing installation chamber is fixedly connected to the washing tower by bolts and nuts. The packing installation chamber is connected to the washing tower and has an open design on one side. The packing box is installed in the packing installation chamber and fixedly connected to the packing installation chamber by bolts and nuts. The spraying mechanism is installed at the top of the packing box. The demister is installed at the bottom of the exhaust outlet of the washing tower. The detergent mixing chamber is located on one side of the washing tower. The mixing mechanism is installed in the detergent mixing chamber. The mixing mechanism includes motor I, rotating shaft, motor II, bidirectional lead screw, fixed ring, connecting rod I, connecting rod II, and sliding ring; A fixed rod is located at the top of the detergent mixing chamber. A rotating shaft is located inside the detergent mixing chamber and rotatably connected to the fixed rod. One end of the rotating shaft passes through the bottom of the detergent mixing chamber. Motor I is installed at the bottom of the detergent mixing chamber, and its output shaft is fixedly connected to the rotating shaft. A protective cover is provided on the outside of Motor I. Two sets of fixed brackets are provided on the rotating shaft, located inside the detergent mixing chamber and correspondingly arranged. Several sets of stirring brackets are provided between the two sets of fixed brackets, and the stirring brackets are rotatably connected to the fixed brackets. The rotating shaft has a hollow structure and several sets of sliding grooves on its sidewalls. The middle part of the rotating shaft is designed to be disconnected, and bolts are used to secure it. The mother is fixedly connected; the bidirectional lead screw is rotatably installed inside the rotating shaft, one end of the bidirectional lead screw passes through the top of the detergent mixing chamber, motor II is installed on the top of the detergent mixing chamber, the output shaft of motor II is fixedly connected to the bidirectional lead screw, a protective shell is provided on the outside of motor II, two sets of fixing rings are provided on the rotating shaft, the two sets of fixing rings are located inside the detergent mixing chamber and are correspondingly arranged, several sets of connecting rods II are provided, the fixing rings are hinged to connecting rods II, connecting rods II are hinged to connecting rods I, two sets of sliding rings are provided, the sliding rings are threadedly connected to the bidirectional lead screw, the side wall of the sliding ring passes through the sliding groove and is hinged to connecting rods I, and stirring blades are provided on one side of both connecting rods II and connecting rods I.

2. The spray scrubbing device for industrial waste gas purification according to claim 1, characterized in that... The sliding ring is provided with bellows-style protective covers at both ends, which are located inside the rotating shaft and sleeved on the bidirectional lead screw.

3. The spray scrubbing device for industrial waste gas purification according to claim 1, characterized in that... The motor II is a reversible motor.

4. The spray scrubbing device for industrial waste gas purification according to claim 1, characterized in that... The packing box is equipped with multiple sets of mounting plates, which are fixedly installed inside the packing box. The mounting plates divide the packing box into multiple layers, and the packing fills the layers. The mounting plates and the upper and lower side plates of the packing box are equipped with several sets of filter holes. One side of the packing box is equipped with a groove, and a sealing plate is installed in the groove. The sealing plate is slidably connected to the packing box through the groove. The packing box is equipped with a handle on the side that is fixedly connected to the packing installation chamber.

5. The spray scrubbing device for industrial waste gas purification according to claim 1, characterized in that... The spraying mechanism includes a fixed pipe; the fixed pipe is located at the top of the packing box and is fixedly connected to the inner wall of the washing tower. Several sets of nozzles are provided at the bottom and side walls of the fixed pipe. A water pipe I is provided on one side of the fixed pipe. One end of the water pipe I is connected to the fixed pipe, and the other end of the water pipe I is connected to the detergent mixing chamber. A water pump I is provided on the water pipe I.

6. The spray scrubbing device for industrial waste gas purification according to claim 1, characterized in that... The detergent mixing chamber includes a water pipe II; the detergent mixing chamber is located on one side of the washing tower, with an inlet at the top and an outlet at the bottom of one side; a filter box is located at the top of the detergent mixing chamber, which is connected to the detergent mixing chamber; a filter screen is installed inside the filter box, which is inserted into the filter box; the filter box is connected to the washing tower through the water pipe II, and a water pump II is installed on the water pipe II.

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