A packed spray tower for waste gas treatment

Abstract

This invention provides a packed spray tower for waste gas treatment. The tower body includes a tower bottom, a tower cover, and at least one tower body. Spray structures are installed at the bottom of both the tower cover and the tower body. A pumping device is used to pump the spray liquid to each spray structure. A first bracket is fixedly installed at the bottom of the tower body, and the spray structures of the tower body are installed at the bottom of the first bracket. A support net is fixedly installed on the top surface of the first bracket to support the packing material. A stirring structure is rotatably installed at the center of the first bracket, and the stirring frame of the stirring structure is located above the support net. A driving structure is installed at the bottom of the first bracket, and the driving structure is connected to the stirring structure. The pumping device provides driving power to the driving structure. The packing material can be stirred, and its position can be changed to improve utilization efficiency and purification effect. Furthermore, by using the pumping device to transport the spray liquid as driving power, there is no need to add an additional electric drive structure, reducing the design and layout difficulty of the overall structure.

Description

Technical Field

[0001] This invention relates to the field of spray towers, and more specifically, to a packed spray tower for waste gas treatment. Background Technology

[0002] Currently, feed production processes generate a certain amount of harmful and odorous gases with high temperature and humidity during production. If these waste gases are released into the atmosphere without treatment, they will cause damage and pollution to the environment. The most common treatment method is to combine multiple steps, including spray towers, dry filtration equipment, and activated carbon adsorption boxes, to ensure effective purification of the waste gases. Among these, the spray towers are mostly packed spray towers. By using packing material, the contact area between the gas and the spray liquid is increased, and the residence time of the waste gas is extended, allowing the two phases of waste gas and liquid to come into full contact, thus achieving effective purification.

[0003] However, most of the current packing materials are laid flat and stationary. The packing materials in the blind spots do not come into contact with the waste gas and liquid, or the contact probability is low. This results in the packing material not being used effectively, causing waste and affecting the overall purification effect. Therefore, this needs to be improved. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the technical problem to be solved by the present invention is to propose a packed spray tower for waste gas treatment. It has a novel structure, which can agitate the packing and change the position of the packing to improve the utilization efficiency and purification effect. Furthermore, it uses a pumping device to transport the spray liquid as the driving power, eliminating the need for an additional electric drive structure and reducing the design and layout difficulty of the overall structure.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] This invention provides a packed spray tower for waste gas treatment, comprising a tower body and a pumping device. The tower body includes a tower bottom, a tower cover, and at least one tower layer installed between the tower bottom and the tower cover. Spray structures are installed at the bottom of both the tower cover and the tower body. The pumping device is used to pump the spray liquid to each spray structure. A first bracket is fixedly installed at the bottom of the tower body, and the spray structures of the tower body are installed at the bottom of the first bracket. A support net is fixedly provided on the top surface of the first bracket for supporting the packing material. A stirring structure is rotatably installed at the center of the first bracket, and the stirring frame of the stirring structure is located above the support net. A driving structure is installed at the bottom of the first bracket, and the driving structure is connected to the stirring structure. The pumping device provides driving power to the driving structure.

[0007] In a preferred embodiment of the present invention, a settling trough is provided at the center of the bottom surface of the first bracket, and a circular hole is provided at the center of the bottom of the settling trough; a first bearing is installed at the settling trough; the stirring structure includes a rotating shaft, a stirring frame fixedly installed at the top of the rotating shaft, and the rotating shaft is installed through the first bearing; a gear is installed at the bottom of the rotating shaft; the driving structure is provided with a rack that can be extended and retracted by a drive, and the rack meshes with the gear for transmission.

[0008] In a preferred embodiment of the present invention, a one-way bearing is installed at the bottom of the rotating shaft, and a gear is fixedly sleeved on the outer ring of the one-way bearing; the stirring shaft rotates synchronously when the rack extends and moves, and the stirring shaft does not rotate when the rack moves back.

[0009] In a preferred embodiment of the present invention, a circular ring is fixedly provided on the outer side of the top of the circular hole, and the circular ring passes through the central top surface of the protruding support net; a flat bearing is sleeved on the rotating shaft, and the flat bearing is clamped and installed between the stirring frame and the circular ring.

[0010] In a preferred embodiment of the present invention, the driving structure includes a box with one open end, which is mounted on the bottom surface of a first bracket; a first pipe is connected to the end face of the box away from the open end, and the first pipe is connected to the delivery pipe of the pumping device through a liquid delivery assembly, providing a flow channel for liquid to enter and exit the box; a piston block is installed inside the box, and one end of a rack is fixedly installed on the piston block; a plug is installed inside the open end of the box, and a notch is provided on the plug corresponding to the rack; the pumping device pumps liquid into the box and pushes the rack outward; a spring is provided inside the box, which is clamped between the plug and the piston block, and provides the piston block with the power to move back after pressure is released.

[0011] In a preferred embodiment of the present invention, the pumping device includes a pump body and a delivery pipe. The inlet of the pump body extends into the water tank through a water pumping pipe, and the delivery pipe is connected to the outlet of the pump body. The delivery pipe is connected to the spray structure with multiple branch pipes, and the branch pipes are connected to the corresponding spray structure. A first solenoid valve is provided on the branch pipe. The liquid delivery assembly includes a tee pipe, a return pipe, and a water supply pipe. The first pipe, the return pipe, and the water supply pipe are connected through the tee pipe, and the water supply pipe is connected to the delivery pipe through a four-way pipe. A second solenoid valve is provided on the water supply pipe, and a third solenoid valve is provided on the return pipe. A return hole is provided at the bottom of the tower and on the corresponding side wall of the tower body, and the end of the return pipe extends into the return hole.

[0012] In a preferred embodiment of the present invention, a guide rod is fixedly installed on the wall surface of the piston block away from the first pipe; the plug is provided with a guide hole corresponding to the guide rod, the guide rod slides along the guide hole, and a spring is sleeved on the guide rod.

[0013] The beneficial effects of this invention are as follows:

[0014] This invention provides a packed spray tower for waste gas treatment. A first bracket is fixedly installed at the bottom of the tower body, and the spray structure of the tower body is installed at the bottom of the first bracket. A support net is fixedly installed on the top surface of the first bracket to support the packing material. A stirring structure is rotatably installed at the center of the first bracket, and the stirring frame of the stirring structure is located above the support net. The packing material can be stirred, the position of the packing material can be changed, the blind zone can be reduced, and the utilization efficiency and purification effect can be improved.

[0015] The bottom of the first bracket is equipped with a drive structure, which is connected to the stirring structure. The pumping device provides driving power to the drive structure. Since they share the same pumping device, there is no need to add an additional electric drive structure, which reduces the design and layout difficulty of the overall structure. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a packed spray tower for waste gas treatment provided in a specific embodiment of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the tower body and its components provided in a specific embodiment of the present invention;

[0018] Figure 3 This is a first-view three-dimensional unfolded structural diagram of the tower body and its components provided in a specific embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the tower body and its components from a second perspective, provided in a specific embodiment of the present invention.

[0020] Figure 5 This is a three-dimensional unfolded structural diagram of the first bracket and its components provided in a specific embodiment of the present invention from a first perspective.

[0021] Figure 6 This is a two-dimensional unfolded structural diagram of the first bracket and its components provided in a specific embodiment of the present invention from a second perspective;

[0022] Figure 7 This is a three-dimensional structural schematic diagram of the first bracket provided in a specific embodiment of the present invention;

[0023] Figure 8 This is a three-dimensional unfolded structural diagram of the driving structure provided in a specific embodiment of the present invention;

[0024] Figure 9 yes Figure 1 Enlarged view of section A.

[0025] In the picture:

[0026] 100. Tower body; 110. Tower bottom; 120. Tower cover; 130. Tower body; 200. Pumping device; 210. Conveying pipe; 220. Pump body; 230. Diverter pipe; 240. First solenoid valve; 300. Spray structure; 400. First support; 410. Settling tank; 420. Circular hole; 430. Circular ring; 500. Support net; 600. Stirring structure; 610. Stirring frame; 620. Rotating shaft; 700. Drive structure 710. Rack; 720. Box body; 730. First pipe; 740. Piston block; 750. Plug; 751. Guide hole; 760. Spring; 770. Guide rod; 810. First bearing; 820. Gear; 830. One-way bearing; 840. Surface bearing; 900. Infusion assembly; 910. T-connector; 920. Return pipe; 930. Water supply pipe; 940. Second solenoid valve; 950. Third solenoid valve. Detailed Implementation

[0027] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0028] like Figures 1 to 4 As shown in the figure, a specific embodiment of the present invention discloses a packed spray tower for waste gas treatment, including a tower body 100 and a pumping device 200. The tower body 100 includes a tower bottom 110, a tower cover 120, and at least one tower body 130 installed between the tower bottom and the tower cover. Spray structures 300 are installed at the bottom of both the tower cover 120 and the tower body 130. The pumping device is used to pump the spray liquid to each spray structure. A first bracket 400 is fixedly installed at the bottom of the tower body 130. The spray structure 300 is installed at the bottom of the first bracket 400; a support net 500 is fixedly provided on the top surface of the first bracket 400 for supporting the packing material; a stirring structure 600 is rotatably installed at the center of the first bracket 400, and the stirring frame 610 of the stirring structure 600 is located above the support net 500; a drive structure 700 is installed at the bottom of the first bracket 400, and the drive structure 700 is connected to the stirring structure 600 in a transmission manner, and the pumping device 200 provides driving power to the drive structure 700;

[0029] The first bracket has a grid structure, which does not affect the passage of gas and liquid; the spray structure includes spray pipes arranged in a grid pattern, forming an installation notch to provide installation space for the drive structure; both the spray pipes and the drive structure are installed on the bottom surface of the first bracket; multiple atomizing nozzles are connected and installed at the bottom of the spray pipes, and the spray range edges of the atomizing nozzles overlap to effectively ensure the overall spray coverage; a second bracket is installed on the bottom inner wall of the tower cover, and the structure of the second bracket is the same as that of the first bracket, used to install the spray structure;

[0030] The aforementioned packing spray tower for waste gas treatment features a stirring structure that agitates the packing material, alters its position, reduces blind spots, and improves utilization efficiency and purification effect. It utilizes a pumping device to provide driving power for the drive structure, sharing the same pumping device and eliminating the need for an additional electric drive structure, thus reducing the overall structural design and layout complexity.

[0031] Furthermore, such as Figures 5 to 8 As shown, the bottom center of the first bracket 400 is provided with a settling groove 410, and the center of the bottom of the settling groove 410 is provided with a circular hole 420; a first bearing 810 is installed at the settling groove 410; the stirring structure 600 includes a rotating shaft 620, a stirring frame 610 fixedly installed at the top of the rotating shaft 620, the rotating shaft 620 is installed through the first bearing 810 to reduce rotational friction; a gear 820 is installed at the bottom end of the rotating shaft 620; as Figure 8 As shown, the drive structure 700 is equipped with a retractable rack 710 that is driven to move. The rack 710 meshes with the gear 820 for transmission. The simple retractable movement is converted into the power to drive the stirring structure to rotate, thereby realizing the change of direction and facilitating the design and layout of the overall structure.

[0032] Furthermore, a one-way bearing 830 is installed at the bottom of the rotating shaft 620, and the gear 820 is fixedly sleeved on the outer ring of the one-way bearing 830; the stirring shaft rotates synchronously when the rack extends and moves, and the stirring shaft does not rotate when the rack moves back; under this structural design, rotation in one direction is limited, so that it conforms to the flow of the pumped liquid and provides sufficient pushing force; when the rack moves in the opposite direction, it will not generate too much resistance and will not affect the normal reset of the rack, which facilitates subsequent pushing drive.

[0033] Furthermore, such as Figure 7 As shown, a circular ring 430 is fixedly provided on the outer side of the top end of the circular hole 420, and the circular ring penetrates through the center top surface of the support net; as Figure 5 As shown, a flat bearing 840 is sleeved on the rotating shaft 620, and the flat bearing 840 is clamped and installed between the stirring frame 610 and the ring 430; this further reduces the rotational friction so that the stirring structure can rotate, and correspondingly reduces the resistance of the push, making it easier to adjust the drive; wherein, the stirring frame includes a frame bar, and multiple upwardly extending stirring rods are fixed on the top surface of the frame bar. The multiple stirring rods are evenly spaced along the length direction of the frame bar, and the outer wall of the stirring rod is fixed with outwardly protruding ribs; this effectively expands the stirring range so as to effectively agitate the packing, change the position of the packing, expand the contact range, and maintain an effective purification effect.

[0034] Furthermore, such as Figure 8As shown, the drive structure 700 includes a box 720 with one open end, which is mounted on the bottom surface of the first bracket 400. A first pipe 730 is connected to the end face of the box 720 away from the open end. A first perforation for the first pipe is provided on the top of the side wall of the tower body, and the connection is sealed and reinforced with glue. The first pipe 730 is connected to the delivery pipe 210 of the pumping device 200 through the liquid delivery assembly 900, providing a flow channel for liquid to enter and exit the box. A piston block 740 is installed inside the box 720, and one end of the rack 710 is fixedly installed on the piston block 740. A plug 750 is installed inside the open end of the box 720, and a notch is provided on the plug corresponding to the rack. The pumping device pumps liquid into the box and pushes the rack outward. The piston-type structure can convert the liquid pumped inward into a pushing force, causing the rack to slide linearly, thereby driving the gear to rotate and driving the stirring structure to rotate.

[0035] The housing 720 contains a spring 760, which is clamped between the plug 750 and the piston block 740. After pressure relief, the spring 760 provides the piston block with the power to move back. When the infusion assembly is converted to an external drainage channel, the liquid inside the housing is discharged, relieving the pushing pressure. The spring pushes the piston block back, accelerating the discharge of liquid. The piston block then drives the rack back, preparing for the next push. Since the gear is mounted on the shaft via a one-way rotating shaft, the gear rotates independently when the rack moves back, without obstructing the rack's movement, allowing it to smoothly return to its position before the push. It should be noted that when the rack moves back to its end position, the rack still maintains engagement with the gear.

[0036] Furthermore, such as Figure 1 , Figure 9 As shown, the pumping device 200 includes a pump body 220 and a delivery pipe 210. The inlet of the pump body extends into the water tank through a water pumping pipe, and the delivery pipe is connected to the outlet of the pump body. The delivery pipe 210 is connected to the spray structure 300 by multiple branch pipes 230. The branch pipes are connected to the corresponding spray structures, and the branch pipes 230 are equipped with a first solenoid valve 240 to provide the required spray liquid for the pumping of the spray structure.

[0037] The infusion assembly 900 includes a three-way pipe 910, a return pipe 920, and a water supply pipe 930. The first pipe, the return pipe, and the water supply pipe are connected by the three-way pipe, and the water supply pipe 930 is connected to the delivery pipe 210 through a four-way pipe. A second solenoid valve 940 is installed on the water supply pipe 930, and a third solenoid valve 950 is installed on the return pipe 920. Return holes are provided at the bottom of the tower and on the corresponding side walls of the tower body. The end of the return pipe extends into the return hole, and the connection between the return pipe and the return hole is sealed and reinforced with glue. This structure allows for changes in the conduction path according to actual needs. More specifically, when it is necessary to drive the stirring structure to rotate, the second solenoid valve can be opened and the third solenoid valve closed. The pump body pumps the spray liquid into the box body, and the continuous pressurization can drive the piston block to move outward, pushing the rack and driving the gear. The pump body and stirring structure rotate to achieve the desired stirring and packing effect. When the running time is reached, the piston block pushes to its upper limit, and the rack can no longer extend outward. The second solenoid valve can be closed, and the third solenoid valve can be opened. The liquid inside the box is discharged through the return pipe, and the piston block moves back under the action of the spring. The rack moves back to its original position, preparing for the next extension. The reciprocating motion of the rack is achieved by the switching of the second and third solenoid valves, thereby driving the rotation of the stirring structure. It should be noted that all the above-mentioned electrical components are electrically connected to an external electrical control box. The operation of each electrical component is controlled by the electrical control box to achieve overall coordinated operation. The pump body, solenoid valves, and electrical control box are all common electrical components that can be purchased and used on the market, and will not be described in detail.

[0038] Furthermore, a guide rod 770 is fixedly installed on the wall of the piston block 740 away from the first pipe; the plug 750 is provided with a guide hole 751 corresponding to the guide rod 770, the guide rod slides along the guide hole, and the spring 760 is sleeved on the guide rod 770; there are two guide rods, which are symmetrically arranged about the axis of the first pipe, further limiting the movement of the piston block and limiting the deformation of the spring to a certain extent, preventing the spring from deviating and causing irregular deformation, avoiding damage to the spring and the piston block from failing to reset properly.

[0039] This invention has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. This invention is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims are also within the protection scope of this invention.

Claims

1. A packed spray tower for waste gas treatment, comprising a tower body and a pumping device, the tower body including a tower bottom, a tower cover, and at least one layer of tower body installed between the tower bottom and the tower cover; spray structures are installed at the bottom of both the tower cover and the tower body, and the pumping device is used to pump the spray liquid to each spray structure; characterized in that: The first bracket is fixedly installed at the bottom of the tower body, and the spray structure of the tower body is installed at the bottom of the first bracket; a support net is fixedly installed on the top surface of the first bracket to support the packing material. A stirring structure is rotatably mounted at the center of the first bracket, with the stirring frame of the stirring structure located above the support net; a drive structure is mounted at the bottom of the first bracket, and the drive structure is connected to the stirring structure in a transmission manner, with the pumping device providing driving power to the drive structure. The bottom surface of the first bracket has a groove at its center, and the bottom of the groove has a round hole at its center; a first bearing is installed in the groove. The stirring structure includes a rotating shaft and a stirring frame fixedly mounted on the top of the rotating shaft. The rotating shaft is installed through and mounted at the first bearing. A gear is installed at the bottom end of the rotating shaft. The drive structure is equipped with a retractable rack that is driven to move, and the rack meshes with a gear for transmission. A one-way bearing is installed at the bottom of the shaft, and the gear is fixedly sleeved on the outer ring of the one-way bearing; the shaft rotates synchronously when the rack extends and moves, and does not rotate when the rack moves back. The drive structure includes a housing that is open at one end, and the housing is mounted on the bottom surface of the first bracket; The end face of the box body away from the open end is connected to a first pipe. The first pipe is connected to the delivery pipe of the pumping device through the liquid delivery assembly, providing a flow channel for liquid to enter and exit the box body. The box contains a piston block, and one end of the rack is fixedly mounted on the piston block. The open end of the box contains a plug, and the plug has a notch corresponding to the rack. The pumping device pumps liquid into the box and pushes the rack outward. The box is equipped with a spring that is clamped between the plug and the piston block. After the pressure is released, the spring provides the power for the piston block to move back. A guide rod is fixedly installed on the wall surface of the piston block away from the first pipe; The plug has a guide hole corresponding to the guide rod, the guide rod slides along the guide hole, and the spring is sleeved on the guide rod.

2. The packed spray tower for waste gas treatment according to claim 1, characterized in that: A circular ring is fixedly provided on the outer side of the top of the circular hole, and the circular ring passes through the center top surface of the protruding support net; A flat bearing is fitted onto the rotating shaft, and the flat bearing is clamped and installed between the stirring frame and the ring.

3. The packed spray tower for waste gas treatment according to claim 1, characterized in that: The pumping device includes a pump body and a delivery pipe. The inlet of the pump body extends into the water tank through a pumping pipe, and the delivery pipe is connected to the outlet of the pump body. The delivery pipe is connected to the spray structure and has multiple branch pipes. The branch pipes are connected to the corresponding spray structure and are equipped with a first solenoid valve. The infusion assembly includes a three-way valve, a return valve, and a water supply valve. The first pipeline, the return valve, and the water supply valve are connected by the three-way valve, and the water supply valve is connected to the delivery pipe through a four-way valve. A second solenoid valve is installed on the water supply valve, and a third solenoid valve is installed on the return valve. The tower bottom and the corresponding tower sidewalls are equipped with reflux holes, and the end of the reflux pipe extends into the reflux hole.

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