Horizontal spray tower

Abstract

The application relates to the technical field of spray towers, and provides a horizontal spray tower which comprises a support and a tower body arranged on the support, one end of the tower body is provided with an air inlet, the other end of the tower body is provided with an air outlet, the top of the tower body is provided with a filler loading port, the height of the filler loading port protrudes from the top of the tower body, and the height of the filler in the filler loading port is higher than the height of the filler in the tower body; a grid baffle is arranged in the tower body, two grid baffles and the inner wall of the tower body surround a filler filling space, the top of the filler filling space is communicated with the filler loading port, a first spraying assembly is arranged in the filler loading port, a second spraying assembly is arranged on the windward side of the grid baffle in the tower body, and a circulating tank is arranged below the tower body and connected with the first spraying assembly, the second spraying assembly and the bottom of the filler filling space. The filler loading port is designed, airflow short circuit after the filler is settled is avoided, the windward surface is sprayed, the top is sprayed, and the wetting of the filler is ensured.

Description

Technical Field

[0001] This application belongs to the field of spray tower technology, and more specifically, relates to a horizontal spray tower. Background Technology

[0002] Spray towers are widely used for treating water-soluble waste gases. Installing packing material inside the tower can increase the gas-liquid contact area and mass transfer efficiency. Horizontal spray towers, because they are relatively shorter than vertical towers, are more commonly used in areas with limited height space.

[0003] In some operating conditions, the exhaust gas contains not only gaseous pollutants but also dust, oil mist, and other substances. Some gaseous pollutants may also react within the spray tower, forming blockages. These substances, if directly introduced into the spray tower, will adhere to the packing material, increasing the tower's resistance, raising energy consumption, and negatively impacting the overall exhaust gas treatment effect.

[0004] For such situations, common solutions include packing replacement or packing cleaning. Frequent packing replacement incurs significant material and labor costs, increasing equipment operating costs. Packing cleaning typically involves personnel entering the tower and using a high-pressure water gun for rinsing. However, due to the confined space inside the tower, especially in horizontal towers, personnel operation is inconvenient and unsafe. For areas with thicker packing, high-pressure water gun rinsing can only clean the surface layer of dirt, failing to achieve the desired cleaning effect.

[0005] Traditional horizontal spray tower systems only spray from above, making it difficult to ensure uniform wetting of the packing material and resulting in poor mass transfer. Furthermore, with use, as the packing material deforms or breaks, it tends to settle at the packing inlet, causing airflow short-circuiting and affecting the treatment effect. Utility Model Content

[0006] To address one of the shortcomings of the existing technology, the purpose of this application is to provide a horizontal spray tower that designs the filling port to avoid short-circuiting of the airflow after the packing settles, while increasing the spraying on the windward side and cooperating with the top spraying to ensure the packing stays moist.

[0007] To achieve the above objectives, the technical solution adopted in this application is as follows: a horizontal spray tower is provided, comprising: a support frame and a tower body mounted on the support frame. One end of the tower body is provided with an air inlet, and the other end of the tower body is provided with an air outlet. The top of the tower body is provided with a packing filling port, the height of which protrudes from the top of the tower body, and the height of the packing inside the packing filling port is higher than the height of the packing inside the tower body. The tower body is provided with grid baffles, and two grid baffles and the inner wall of the tower body form a packing filling space. The top of the packing filling space communicates with the packing filling port. A first spray assembly is provided in the packing filling port. A second spray assembly is provided in the tower body on the windward side of the grid baffles. A circulation box connected to the first spray assembly, the second spray assembly, and the bottom of the packing filling space is provided below the tower body.

[0008] In one embodiment, the bottom of the tower body is provided with a packing discharge port that communicates with the bottom of the packing filling space. The packing discharge port protrudes out of the tower body. The top of the circulation tank is provided with a water tank packing inlet. The packing discharge port and the water tank packing inlet are connected by a valve.

[0009] In one embodiment, the circulation tank is equipped with a stirring assembly.

[0010] In one embodiment, the stirring assembly includes a stirring shaft, a stirring paddle, a coupling, a speed reducer, and a motor.

[0011] In one embodiment, the first spray assembly includes a horizontally arranged first water pipe and a plurality of first nozzles arranged on the first water pipe, and the second spray assembly includes a vertically arranged second water pipe and a plurality of second nozzles arranged on the second water pipe.

[0012] In one embodiment, the bottom of the packing discharge port is connected to the circulation tank via a drain pipe.

[0013] In one embodiment, at least two packing filling ports are provided, and at least two corresponding packing filling spaces, packing discharge ports, and water tank packing inlets are provided.

[0014] In one embodiment, the top of the circulation tank is provided with a water tank inspection port.

[0015] In one embodiment, the top of the filler inlet is provided with a cover plate.

[0016] In one embodiment, the side of the tower body is provided with multiple observation windows.

[0017] The beneficial effects of the horizontal spray tower provided in this application are as follows:

[0018] 1. By setting the position of the packing filling port higher than the top of the tower, the packing in the filling port is higher than the packing height inside the tower. In this way, when the packing inside the tower settles, the packing in the filling port can automatically fill under its own weight, thus effectively avoiding airflow short circuit.

[0019] 2. By adding a second spray assembly to spray the windward side of the grid baffle, the packing material can be effectively kept moist in conjunction with the first spray assembly at the top.

[0020] 3. By adding the corresponding cleaning agent into the circulation tank, the first spray assembly and the second spray assembly can effectively clean the packing material. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the horizontal spray tower provided in the embodiments of this application;

[0023] Figure 2 A side view of the internal structure of a horizontal spray tower provided in an embodiment of this application;

[0024] Figure 3 This is a front view of the internal structure of a horizontal spray tower provided in an embodiment of this application.

[0025] The following are the labeling elements in the figure:

[0026] 1. Air inlet; 2. Tower body; 3. Observation window; 4. Packing filling port; 5. Cover plate; 6. Air outlet; 7. Support; 8. Circulation box; 9. Water tank inspection port; 10. Packing unloading port; 11. Valve; 12. Water tank packing inlet; 13. Drain pipe; 14. Second spray assembly; 15. First spray assembly; 16. First nozzle; 17. Packing; 18. Grille baffle; 19. Agitator shaft; 20. Agitator paddle; 21. Coupling; 22. Reducer; 23. Motor. Detailed Implementation

[0027] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0028] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0029] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0031] like Figure 1-3 As shown, a horizontal spray tower provided in this application embodiment will now be described. This horizontal spray tower includes: a support 7 and a tower body 2 mounted on the support 7. One end of the tower body 2 has an air inlet 1, and the other end has an air outlet 6. The top of the tower body 2 has a packing filling port 4, which protrudes above the top of the tower body 2. The height of the packing material inside the packing filling port 4 is higher than the height of the packing material inside the tower body 2. A grid baffle 18 is installed inside the tower body 2. The grid baffle 18 is vertically arranged, and two grid baffles 18 form a packing filling space with the inner wall of the tower body 2. The top of the packing filling space communicates with the packing filling port 4. Exhaust gas enters the tower body 2 through the air inlet 1, passes through the grid baffle 18, the packing material 17, and then exits through the air outlet 6. The outer side of the grid baffle 18 closest to the air inlet 1 in one of the packing filling spaces is the windward side.

[0032] In this embodiment, a first spray assembly 15 is provided inside the packing filling port 4, and a second spray assembly 14 is provided inside the tower body 2 on the windward side of the grid baffle 18. A circulation tank 8 is provided below the tower body 2, connected to the first spray assembly 15, the second spray assembly 14, and the bottom of the packing filling space. The circulation tank 8 contains spray liquid and is connected to the first spray assembly 15 and the second spray assembly 14 via corresponding pipes and a circulation pump. The bottom of the packing filling space is connected to the circulation tank 8 via a drain pipe 13, allowing the spray liquid to automatically flow back into the circulation tank 8.

[0033] Specifically, in this embodiment, the height of the packing inlet 4 is greater than half the height of the packing inside the tower body 2. This allows for the allowance for packing settling height inside the tower body 2, effectively preventing airflow short-circuiting. In this embodiment, airflow short-circuiting refers to the inability to clean the exhaust gas due to a lack of treatment after the packing settles.

[0034] In this embodiment, the bottom of the tower body 2 is provided with a packing discharge port 10 that communicates with the bottom of the packing filling space. The packing discharge port 10 protrudes outward from the bottom of the tower. The top of the circulation tank 8 is provided with a water tank packing inlet 12. The packing discharge port 10 and the water tank packing inlet 12 are connected by a valve 11. The bottom of the packing discharge port 10 is connected to the circulation tank 8 through a drain pipe 13. Under normal circumstances, the valve 11 is closed, and the packing 17 treats the waste gas in the packing filling space. The spray water flows back to the circulation tank 8 through the drain pipe 13. When it is necessary to clean the packing, the valve 11 can be opened to discharge the packing 17 into the circulation tank 8 for agitation and washing.

[0035] To ensure the cleaning effect of the packing material in the circulation tank 8, a stirring assembly is provided in the circulation tank 8. The stirring assembly includes a stirring shaft 19, a stirring paddle 20, a coupling 21, a reducer 22, and a motor 23. The stirring assembly can stir the packing material and use the repeated friction between the packing material and the spray water in the circulation tank 8 to repeatedly clean it, thus ensuring the cleaning effect of the packing material.

[0036] In this embodiment, the first spray assembly 15 includes a horizontally arranged first water pipe and a plurality of first nozzles 16 arranged on the first water pipe, and the second spray assembly 14 includes a vertically arranged second water pipe and a plurality of second nozzles arranged on the second water pipe. The number of first nozzles 16 is sufficient to ensure that the sprayed liquid can completely cover the entire filler loading port 4, and similarly, the number of second nozzles is sufficient to ensure that the sprayed liquid can completely cover the windward side of the grid baffle 18. The first water pipe and the second water pipe are connected to the circulation tank 8 through pipes.

[0037] In this embodiment, at least two packing filling ports 4 are arranged in a row on the tower body 2, and at least two corresponding packing filling spaces, packing discharge ports 10, and water tank packing inlets 12 are also provided. Among them, the packing discharge port 10 is designed in the shape of a funnel to facilitate the automatic flow of packing after the valve 11 is opened.

[0038] In this embodiment, the top of the circulation tank 8 is provided with a water tank inspection port 9, which facilitates later maintenance and removal of the packing material. The top of the packing material filling port 4 is provided with a cover plate 5, which can be opened for adding packing material, and the cover plate 5 seals and closes the packing material filling port 4 to prevent exhaust gas from escaping.

[0039] In this embodiment, the side of the tower body 2 is provided with multiple observation windows 3 for observing the contamination of the packing and the spray cleaning situation.

[0040] Under normal circumstances, valve 11 is closed, and the waste gas is treated within the packed tower 2. Normally, the packing material is sprayed using the first spray assembly 15 and the second spray assembly 14 to ensure its waste gas treatment capacity. If, after a prolonged period, the packing material can no longer meet the normal waste gas treatment requirements, the unit is shut down. At this time, valve 11 is opened, and the packing material in the tower 2 is discharged into the circulation tank 8. The packing material is then stirred using the stirring assembly to improve its cleaning effect. The cleaned packing material can be retrieved and reused. Specifically, dodecyl dimethyl benzyl ammonium chloride is added to the circulation tank 8 at a dosage of 100 mg / L. The motor 23 is started, and the stirring shaft 19 rotates at a speed of 2-6 rpm. After 6 hours, a slime remover is added at a dosage of 100 mg / L, and cleaning continues for another 18 hours. During this period, an appropriate amount of defoamer is added based on the amount of foam generated in the circulation tank 8. Dodecyl dimethyl benzyl ammonium chloride can kill algae and microorganisms inside the tower, while the slime remover can reduce the adhesion of fouling to the packing material. Under the combined action of stirring and the chemicals, the fouling clogging the surface of the packing and the gaps between the packing materials enters the water and is discharged with the water flow. After a cumulative 24 hours of operation, the water in the circulation tank 8 is changed and then cleaned for 30 minutes. Valve 11 is closed, the packing material in the circulation tank 8 is removed, and it is reinstalled through the packing material filling port 4.

[0041] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A horizontal spray tower, comprising: A support (7) and a tower body (2) mounted on the support (7), wherein one end of the tower body (2) is provided with an air inlet (1) and the other end of the tower body (2) is provided with an air outlet (6), characterized in that: the top of the tower body (2) is provided with a packing filling port (4), the height of the packing filling port (4) is protruding from the top of the tower body (2), and the height of the packing in the packing filling port (4) is higher than the height of the packing in the tower body (2); the tower body (2) is provided with a grid baffle (18), and two of the grids are connected to the grid baffle. The grid baffle (18) and the inner wall of the tower body (2) form a filling space. The top of the filling space is connected to the filling port (4). The filling port (4) is provided with a first spray assembly (15). The tower body (2) is provided with a second spray assembly (14) located on the windward side of the grid baffle (18). The bottom of the tower body (2) is provided with a circulation box (8) connected to the first spray assembly (15), the second spray assembly (14) and the bottom of the filling space.

2. The horizontal spray tower as described in claim 1, characterized in that: The bottom of the tower body (2) is provided with a packing discharge port (10) that communicates with the bottom of the packing filling space. The packing discharge port (10) protrudes out of the tower body (2). The top of the circulation tank (8) is provided with a water tank packing inlet (12). The packing discharge port (10) and the water tank packing inlet (12) are connected by a valve (11).

3. The horizontal spray tower as described in claim 2, characterized in that: The circulation tank (8) is equipped with a stirring assembly.

4. The horizontal spray tower as described in claim 3, characterized in that: The stirring assembly includes a stirring shaft (19), a stirring paddle (20), a coupling (21), a speed reducer (22), and a motor (23).

5. The horizontal spray tower as described in claim 4, characterized in that: The first spray assembly (15) includes a horizontally arranged first water pipe and a plurality of first nozzles (16) arranged on the first water pipe, and the second spray assembly (14) includes a vertically arranged second water pipe and a plurality of second nozzles arranged on the second water pipe.

6. The horizontal spray tower as described in claim 2, characterized in that: The bottom of the packing discharge port (10) is connected to the circulation tank (8) through a drain pipe (13).

7. The horizontal spray tower as described in any one of claims 2-6, characterized in that: The packing filling port (4) is provided with at least two, and the corresponding packing filling space, packing unloading port (10) and water tank packing inlet (12) are each provided with at least two.

8. The horizontal spray tower as described in claim 7, characterized in that: The top of the circulation tank (8) is provided with a water tank inspection port (9).

9. The horizontal spray tower as described in claim 7, characterized in that: The top of the filler loading port (4) is provided with a cover plate (5).

10. The horizontal spray tower as described in claim 7, characterized in that: The tower body (2) has multiple observation windows (3) on its side.

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