Spraying purification tower with multi-layer purification structure

Abstract

The utility model discloses a spray purification tower with a multi-layer purification structure, relates to the related field of spray purification towers, and aims to solve the problems that the downward action range of absorption liquid is limited at present, a large number of spray heads are needed for complete coverage, the manufacturing cost is increased, the spray quantity of the absorption liquid is increased due to the increase of the spray heads, and the production cost is reduced. A part of absorption liquid flows out downwards without being subjected to neutralization reaction with the waste gas in time, and although a circulating system is provided, the workload of the circulating system is still increased. A first spraying unit and a second spraying unit are arranged in the spraying tower main body, the first spraying unit and the second spraying unit are the same in structure, liquid inlet pipes are arranged on the first spraying unit and the second spraying unit, and the liquid inlet pipes penetrate through and are fixed on the inner wall of the spraying tower main body; the first spraying unit and the second spraying unit further comprise spraying assemblies, each spraying assembly comprises a liquid conveying pipe, and the liquid conveying pipes and the liquid inlet pipes are fixed through flanges.

Description

Technical Field

[0001] The utility model relates to the relevant field of spray purification towers, in particular to a spray purification tower with a multi-layer purification structure. Background Art

[0002] The spray purification tower is a new type of gas purification equipment. As the name suggests, it is used to treat harmful components in exhaust gas. It is an important component of the spray method for treating exhaust gas or recovering raw materials. The equipment used to clean exhaust gas is also called spray tower and water washing tower. Such exhaust gas purification equipment is often used in industrial waste gas treatment.

[0003] According to the type of exhaust gas and the spray liquid, it can be divided into water spray tower, acid spray tower, alkali spray tower, oil spray tower, water film dust removal / wet dust collector; according to the shape, it can also be divided into vertical washing tower and horizontal washing tower; according to the material, it can be divided into PP washing tower, FRP washing tower, etc.

[0004] The operation mode of the spray purification tower is to continuously introduce waste gas into the purification tower, so that the waste gas and the absorption liquid can be fully contacted for absorption and neutralization reaction, and the waste gas is discharged into the atmosphere after purification.

[0005] Since the exhaust gas moves upward in an irregular manner and fills the entire space, while the absorption liquid has a limited downward range of action, a large number of spray heads are required to fully cover the area, which increases the manufacturing cost. In addition, the increase in spray heads increases the amount of absorption liquid sprayed, and some of the absorption liquid flows downward before it has time to neutralize with the exhaust gas. Although there is a circulation system, the workload of the circulation system will still increase. Utility Model Content

[0006] The purpose of the utility model is to provide a spray purification tower with a multi-layer purification structure to solve the problem raised in the above-mentioned background technology that the downward action range of the current absorption liquid is limited, a large number of spray heads are required for comprehensive coverage, which will increase the manufacturing cost, and the increase in the number of spray heads increases the spray volume of the absorption liquid, and some of the absorption liquid flows downward before it has time to react with the exhaust gas for neutralization. Although there is a circulation system, the workload of the circulation system will still be increased.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spray purification tower with a multi-layer purification structure, comprising a spray tower main body, wherein a first spray unit and a second spray unit are arranged inside the spray tower main body, wherein the first spray unit and the second spray unit have the same structure, wherein a liquid inlet pipe is arranged on the first spray unit and the second spray unit, wherein the liquid inlet pipe passes through and is fixed to the inner wall of the spray tower main body, wherein the first spray unit and the second spray unit further comprise a spray assembly, wherein the spray assembly comprises a liquid infusion pipe, wherein the liquid infusion pipe is fixed to the liquid inlet pipe by a flange, wherein a rotating disk is arranged at the other end of the liquid infusion pipe, and wherein the rotating disk rotates inside the spray tower main body, A clamping ring is arranged inside the spray tower body along the upper and lower ends of the rotating disk, an upper fitting tube is fixed to the outside of the upper end of the rotating disk, an inner fixed tube is fixed to the lower end of the rotating disk, the other end of the infusion tube passes through the upper fitting tube and the upper end surface of the rotating disk and extends to the upper end of the inner fixed tube, liquid holes are penetrated on four sides of the outer surface of the inner fixed tube, a liquid cavity is formed inside the rotating disk along the outside of the inner fixed tube, the interior of the rotating disk is arranged as an inner vortex cavity, the inner vortex cavity and the liquid cavity are connected with the liquid hole, an inclined disk is fixed to the upper end of the inner vortex cavity along the inside of the inner fixed tube, the inclined disk is inclined, and there are multiple circles of spray heads in an annular array at the lower end of the rotating disk.

[0008] Preferably, the first spray unit and the second spray unit also include a second support plate and an absorption layer, the second support plate is located at the upper and lower ends of the absorption layer, the second support plate is provided with holes, and the second support plate and the absorption layer are located at the corresponding lower end position of the spray assembly.

[0009] Preferably, a drying assembly is arranged at the uppermost end of the interior of the spray tower body, and the drying assembly is composed of a first supporting plate and a drying layer. The first supporting plate is located at the upper and lower ends of the drying layer, and holes are arranged on the first supporting plate.

[0010] Preferably, an upper gas collecting hood is fixed to the upper end of the spray tower body by bolts, a gas exhaust pipe is installed on the upper end of the upper gas collecting hood, and an air inlet pipe is installed along the lower end of the second spray unit on one side of the spray tower body.

[0011] Preferably, an intermediate fixed plate is fixed at the lower end of the interior of the spray tower body, a liquid outlet pipe is installed in the middle of the intermediate fixed plate, and the liquid outlet pipe is communicated with the space at the upper end of the intermediate fixed plate.

[0012] Preferably, a filter plate is fixed along the lower end of the middle fixed plate inside the spray tower body, and a filter cavity is formed between the middle fixed plate and the filter plate inside the spray tower body. A lower fixed plate is fixed along the lower end of the filter plate inside the spray tower body, and a drainage cavity is formed between the lower fixed plate and the filter plate inside the spray tower body.

[0013] Preferably, a drainage pipe is installed along the upper end of the filter plate on one side of the spray tower body, and the drainage pipe is connected to the filter cavity. A liquid drain pipe is installed between the filter plate and the lower fixed plate on one side of the spray tower body, and the liquid drain pipe is connected to the liquid drain cavity.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the utility model, the absorption liquid reaches the infusion tube through the liquid inlet pipe. Since the end of the infusion tube is located in the rotating disk, and an internal fixed tube is arranged inside the rotating disk along the outside of the infusion tube, an inclined disk is fixed inside the internal fixed tube along the output position of the infusion tube, and the inclined disk is arranged obliquely. When the absorption liquid hits the upper end of the inclined disk, the absorption liquid will be divided into two parts by the inclined disk to form a vortex, which drives the internal fixed tube and the rotating disk to rotate, that is, the absorption liquid is sprayed out in a rotary manner. Under the same layout amount, the spray range of the rotationally sprayed absorption liquid is larger, and the entire lower spray space can be fully covered, which solves the problem that the absorption liquid has a limited downward action range at present. In order to fully cover, a large number of spray heads are required, which will increase the manufacturing cost. In addition, the increase in the number of spray heads increases the amount of absorption liquid sprayed, and some absorption liquid flows downward before it has time to react with the exhaust gas. Although there is a circulation system, it will still increase the workload of the circulation system. And the rotation is achieved by the driving force of the water flow, and the driving function can be realized without introducing a driving device, making the entire device lighter.

[0016] 2. In the utility model, the absorption liquid is introduced into the liquid inlet pipe through the delivery pump, and the exhaust gas and the absorption liquid are contacted, absorbed and neutralized. The absorption liquid flows downward and fills the pores of the absorption layer; when the exhaust gas flows upward, it contacts and absorbs the absorption liquid in the absorption layer without being sprayed and washed by the absorption liquid, and then reacts with the absorption liquid sprayed by the spray head. That is, the exhaust gas will be neutralized by the double number of spray units, making the exhaust gas washing more comprehensive and sufficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of a spray purification tower with a multi-layer purification structure according to the utility model;

[0018] Figure 2 This is a cross-sectional view of a spray purification tower with a multi-layer purification structure according to the utility model after the spray assembly is removed;

[0019] Figure 3 This is an enlarged view of the structure at point A of a spray purification tower with a multi-layer purification structure of the utility model;

[0020] Figure 4 It is a cross-sectional view of a spray assembly of a spray purification tower with a multi-layer purification structure according to the utility model.

[0021] In the figure: 1. spray tower body; 2. upper gas collecting hood; 3. gas exhaust pipe; 4. drying assembly; 5. first support plate; 6. drying layer; 7. first spray unit; 8. second spray unit; 9. second support plate; 10. absorption layer; 11. liquid inlet pipe; 12. spray assembly; 13. liquid infusion pipe; 14. rotating disk; 15. liquid cavity; 16. upper fitting tube; 17. inner fixed tube; 18. liquid through hole; 19. inner vortex cavity; 20. inclined disk; 21. spray head; 22. air inlet pipe; 23. middle fixed disk; 24. liquid outlet pipe; 25. filter plate; 26. lower fixed disk; 27. impurity discharge pipe; 28. liquid discharge pipe. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1-4 The utility model provides an embodiment: a spray purification tower with a multi-layer purification structure, including a spray tower body 1, an upper gas collecting hood 2 is fixed to the upper end of the spray tower body 1 by bolts, and a gas exhaust pipe 3 is installed on the upper end of the upper gas collecting hood 2.

[0024] A drying assembly 4 is arranged at the top of the spray tower body 1. The drying assembly 4 is composed of a first support plate 5 and a drying layer 6. The first support plate 5 is located at the upper and lower ends of the drying layer 6. The drying layer 6 is a drying structure that does not react with the exhaust gas, which is determined according to the type of exhaust gas. Holes are arranged on the first support plate 5. A first spray unit 7 and a second spray unit 8 are arranged inside the spray tower body 1. The first spray unit 7 and the second spray unit 8 have the same structure. An air inlet pipe 22 is installed along the lower end of the second spray unit 8 on one side of the spray tower body 1. An intermediate fixed disk 23 is fixed at the lower end of the spray tower body 1. A liquid outlet pipe 24 is installed in the middle of the intermediate fixed disk 23. The liquid outlet pipe 24 is connected to the upper space of the intermediate fixed disk 23.

[0025] The first spray unit 7 and the second spray unit 8 are provided with a liquid inlet pipe 11, which passes through and is fixed to the inner wall of the spray tower body 1. The first spray unit 7 and the second spray unit 8 also include a spray assembly 12, and the spray assembly 12 includes a liquid infusion pipe 13, which is fixed to the liquid inlet pipe 11 through a flange, and a rotating disk 14 is provided at the other end of the liquid infusion pipe 13, and the rotating disk 14 rotates inside the spray tower body 1, and the spray tower body 1 is provided with a clamp ring along the upper and lower ends of the rotating disk 14. The first spray unit 7 and the second spray unit 8 also include a second support plate 9 and an absorption layer 10, and the absorption layer 10 is a structure with abundant holes, and mainly absorbs the absorption liquid through the internal holes, and the second support plate 9 is located at the upper and lower ends of the absorption layer 10, and the second support plate 9 is provided with holes, and the second support plate 9 and the absorption layer 10 are located at the corresponding lower end of the spray assembly 12.

[0026] The holes on the first support plate 5 and the second support plate 9 are arranged with a relatively large diameter, so as to support the drying layer 6 and the absorption layer 10 without affecting the passage of the absorption liquid and the exhaust gas.

[0027] The external blast equipment discharges the waste gas through the air inlet pipe 22 into the space above the middle fixed plate 23, and the waste gas flows upward; the absorption liquid is introduced into the liquid inlet pipe 11 of the second spray unit 8 through the delivery pump, and the waste gas and the absorption liquid are contacted, absorbed and neutralized, and the absorption liquid flows downward and fills the pores of the absorption layer 10 on the second spray unit 8. The remaining absorption liquid continues to flow downward and is discharged through the liquid outlet pipe 24. When the subsequent waste gas flows upward, it contacts, absorbs and neutralizes with the absorption liquid in the absorption layer 10 without absorption liquid spray washing, and then reacts with the absorption liquid sprayed from the spray head 21 on the second spray unit 8. The waste gas after the first washing continues to flow upward and reaches the position of the first spray unit 7, and reacts in the same principle. After the four-step absorption liquid neutralization reaction, the waste gas reaches the position of the drying component 4, and the drying layer 6 absorbs the moisture in the waste gas, and the dried gas is discharged through the gas exhaust pipe 3.

[0028] An upper fitting tube 16 is fixed to the outside of the upper end of the rotating disk 14, and an inner fixed tube 17 is fixed to the lower end of the rotating disk 14. The other end of the infusion tube 13 passes through the upper fitting tube 16 and the upper end surface of the rotating disk 14 and extends to the upper end of the inner fixed tube 17. Liquid holes 18 are penetrated on the four sides of the outer surface of the inner fixed tube 17. A liquid cavity 15 is formed inside the rotating disk 14 along the outside of the inner fixed tube 17. An inner vortex cavity 19 is arranged inside the rotating disk 14. The inner vortex cavity 19 and the liquid cavity 15 are connected with the liquid hole 18. An inclined disk 20 is fixed to the upper end of the inner vortex cavity 19 along the inside of the inner fixed tube 17. The inclined disk 20 is inclined, and a plurality of sprinkler heads 21 are arranged in a circular array at the lower end of the rotating disk 14.

[0029] The absorption liquid reaches the infusion tube 13 through the liquid inlet tube 11. Since the end of the infusion tube 13 is located in the rotating disk 14, and an internal fixed tube 17 is arranged inside the rotating disk 14 along the outside of the infusion tube 13, and an inclined disk 20 is fixed inside the internal fixed tube 17 along the output position of the infusion tube 13, since the inclined disk 20 is arranged obliquely, when the absorption liquid hits the upper end of the inclined disk 20, the absorption liquid will be divided into two parts by the inclined disk 20, and there is a flow difference between the two parts, and the water flow will form a vortex, driving the internal fixed tube 17 to rotate. Due to the fixation of the internal fixed tube 17 and the rotating disk 14, the rotating disk 14 is driven to rotate. The absorption liquid reaches the liquid cavity 15 through the liquid hole 18, and then sprays out through the spray head 21; the absorption liquid is sprayed out in a rotating manner.

[0030] Furthermore, a filter plate 25 is fixed along the lower end of the middle fixed plate 23 inside the spray tower body 1, and a filter cavity is formed between the middle fixed plate 23 and the filter plate 25 inside the spray tower body 1; a lower fixed plate 26 is fixed along the lower end of the filter plate 25 inside the spray tower body 1, and a drainage cavity is formed between the lower fixed plate 26 and the filter plate 25 inside the spray tower body 1; a drainage pipe 27 is installed along the upper end of the filter plate 25 on one side of the spray tower body 1, and the drainage pipe 27 is connected to the filter cavity; a drainage pipe 28 is installed between the filter plate 25 and the lower fixed plate 26 on one side of the spray tower body 1, and the drainage pipe 28 is connected to the drainage cavity.

[0031] The absorption liquid sprayed from the first spray unit 7 and the second spray unit 8 flows downward, flows to the filter chamber through the liquid outlet pipe 24, is filtered through the filter plate 25, and impurities remain on the upper end of the filter plate 25, and are subsequently discharged through the impurity discharge pipe 27; the absorption liquid reaches the lower end of the filter plate 25, is discharged through the liquid discharge pipe 28, and re-enters the absorption liquid storage tank after treatment, and is transported by the delivery pump to participate in the spray purification process.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A spray purification tower with a multi-layer purification structure, comprising a spray tower body (1), characterized in that: A first spray unit (7) and a second spray unit (8) are arranged inside the spray tower body (1). The first spray unit (7) and the second spray unit (8) have the same structure. A liquid inlet pipe (11) is arranged on the first spray unit (7) and the second spray unit (8). The liquid inlet pipe (11) passes through and is fixed to the inner wall of the spray tower body (1). The first spray unit (7) and the second spray unit (8) also include a spray assembly (12). The spray assembly (12) includes a liquid infusion pipe (13). The liquid infusion pipe (13) is fixed to the liquid infusion pipe (11) through a flange. A rotating disk (14) is arranged at the other end of the liquid infusion pipe (13). The rotating disk (14) rotates inside the spray tower body (1). A clamping ring is arranged inside the spray tower body (1) along the upper and lower ends of the rotating disk (14). The rotating disk (14) is provided with a plurality of retaining rings. An upper fitting tube (16) is fixed to the outside of the end, an inner fixing tube (17) is fixed to the lower end of the rotating disk (14), the other end of the infusion tube (13) passes through the upper fitting tube (16) and the upper end surface of the rotating disk (14) and extends to the upper end of the inner fixing tube (17), four sides of the outer surface of the inner fixing tube (17) are penetrated with liquid holes (18), a liquid cavity (15) is formed inside the rotating disk (14) along the outside of the inner fixing tube (17), an inner vortex cavity (19) is arranged inside the rotating disk (14), the inner vortex cavity (19) and the liquid cavity (15) are connected with the liquid holes (18), an inclined disk (20) is fixed to the upper end of the inner vortex cavity (19) along the inside of the inner fixing tube (17), the inclined disk (20) is arranged obliquely, and a plurality of spray heads (21) are arranged in an annular array at the lower end of the rotating disk (14).

2. A spray purification tower with a multi-layer purification structure according to claim 1, characterized in that: The first spray unit (7) and the second spray unit (8) further comprise a second support plate (9) and an absorption layer (10); the second support plate (9) is located at the upper and lower ends of the absorption layer (10); holes are provided on the second support plate (9); the second support plate (9) and the absorption layer (10) are located at positions corresponding to the lower ends of the spray assembly (12).

3. A spray purification tower with a multi-layer purification structure according to claim 1, characterized in that: A drying assembly (4) is arranged at the uppermost end of the spray tower body (1), and the drying assembly (4) is composed of a first support plate (5) and a drying layer (6). The first support plate (5) is located at the upper and lower ends of the drying layer (6), and holes are arranged on the first support plate (5).

4. The spray purification tower with a multi-layer purification structure according to claim 1, characterized in that: An upper gas collecting hood (2) is fixed to the upper end of the spray tower body (1) by bolts, a gas exhaust pipe (3) is installed at the upper end of the upper gas collecting hood (2), and an air inlet pipe (22) is installed along the lower end of the second spray unit (8) on one side of the spray tower body (1).

5. The spray purification tower with a multi-layer purification structure according to claim 1, characterized in that: An intermediate fixed disk (23) is fixed at the lower end of the interior of the spray tower body (1), a liquid outlet pipe (24) is installed in the middle of the intermediate fixed disk (23), and the liquid outlet pipe (24) is communicated with the upper end space of the intermediate fixed disk (23).

6. A spray purification tower with a multi-layer purification structure according to claim 5, characterized in that: A filter plate (25) is fixed along the lower end of the middle fixed plate (23) inside the spray tower body (1), and a filter cavity is formed between the middle fixed plate (23) and the filter plate (25) inside the spray tower body (1). A lower fixed plate (26) is fixed along the lower end of the filter plate (25) inside the spray tower body (1), and a drainage cavity is formed between the lower fixed plate (26) and the filter plate (25) inside the spray tower body (1).

7. A spray purification tower with a multi-layer purification structure according to claim 6, characterized in that: A drainage pipe (27) is installed along the upper end of the filter plate (25) on one side of the spray tower body (1), and the drainage pipe (27) is communicated with the filter chamber. A liquid discharge pipe (28) is installed between the filter plate (25) and the lower fixed plate (26) on one side of the spray tower body (1), and the liquid discharge pipe (28) is communicated with the liquid discharge chamber.

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