A multi-stage counterflow spray washing tower

Abstract

The utility model relates to the technical field of washing tower discloses a multilayer crossflow type spray washing tower, including tower body, the lower part of one side wall of tower body is installed with the smoke inlet pipe, and the top of tower body is installed with the smoke exhaust pipe, and the inside of tower body is installed with multiple groups of oblique drainage groove, and multiple groups of oblique drainage groove are installed on the inner wall of opposite two sides of tower body respectively, and multiple groups of drainage pipes are passed through on opposite two side walls of tower body, the lower side of oblique drainage groove is installed with the water spray pipe, and one end of water spray pipe is installed with the water supply pipe, and the water supply pipe is sealed and passes out tower body, and the lower side of water spray pipe is equipped with the water screen spray hole, and the lower side of oblique drainage groove is installed with the filter screen. The utility model has the advantages of compared with prior art: through multiple groups of oblique drainage groove of misaligned installation to the flue gas in the inside of tower body and carry out the flow guide, and the dust particle in the flue gas contacts with the water screen, and the flue gas carries out multilayer crossflow spray, and the dust particle is dissolved in water, and removes the acid gas in the flue gas.

Description

Technical Field

[0001] This utility model relates to the field of scrubbing tower technology, specifically to a multi-layer cross-flow spray scrubbing tower. Background Technology

[0002] A scrubbing tower is a new type of gas purification equipment. It is an improvement on the floating packing layer gas purifier and is widely used in pretreatment for industrial waste gas purification and dust removal. It has a very good purification effect. It utilizes the contact between gas and liquid to transfer pollutants in the gas to the liquid, and then separates the clean gas from the contaminated liquid to achieve the purpose of purifying the air.

[0003] In traditional exhaust gas scrubbing tower spray devices, exhaust gas is injected into the scrubbing tower, then passes through a distribution network, and water is sprayed from nozzles at the top of the scrubbing tower to purify the rising exhaust gas. Since the exhaust gas rises from the bottom and passes through the distribution network before being sprayed with scrubbing liquid from the top nozzles, the airflow may not have enough contact time to fully mix with the liquid during its upward path within the tower. This can lead to pollutants in the exhaust gas not being effectively captured, especially for pollutants with low concentrations or those that are difficult to remove, resulting in poor purification effects.

[0004] To address the aforementioned technical problems, this application proposes a multi-layer cross-flow spray scrubbing tower. Utility Model Content

[0005] I. Technical problems to be solved

[0006] The technical problem this invention aims to solve is that when the top nozzle sprays the washing liquid, the airflow may not have enough contact time to fully mix with the liquid in the upward path inside the tower, resulting in the pollutants in the exhaust gas not being effectively captured.

[0007] II. Technical Solution

[0008] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a multi-layer cross-flow spray scrubbing tower, including a tower body, an inlet pipe installed on the lower part of one side wall of the tower body, an exhaust pipe installed on the top of the tower body, and multiple sets of inclined drainage channels installed on the inner side of the tower body. The multiple sets of inclined drainage channels are respectively installed on the inner walls of opposite sides of the tower body, and the inclination directions of two adjacent sets of inclined drainage channels are opposite. Multiple sets of drainage pipes pass through the opposite side walls of the tower body, and the multiple sets of drainage pipes are located on the upper side of the bottom of the inclined drainage channels.

[0009] A water spray pipe is installed on the lower side of the inclined drainage trough. A water supply pipe is installed at one end of the water spray pipe. The water supply pipe passes through the tower body in a sealed manner. A water curtain spray hole is provided on the lower side of the water spray pipe. The side wall and bottom of the water spray pipe are inclined and multiple sets of atomizing nozzles are installed. A filter screen is installed on the lower side of the inclined drainage trough. The multiple sets of atomizing nozzles spray water mist onto the filter screen.

[0010] As an improvement, the inclined drainage channel is inclined upward from one end fixed to the inner side wall of the tower body, and a baffle plate is installed above the side of the inclined drainage channel that is not connected to the side wall of the tower body. The baffle plate and the side wall of the tower body are the smoke inlet.

[0011] As an improvement, a U-shaped connecting plate is provided between the lower sides of the three side walls of the inclined drainage ditch, and the U-shaped connecting plate is sealed to the side wall of the tower body.

[0012] As an improvement, the upper side of the inclined drainage channel is provided with multi-component water-dividing protrusions, and the lower side of the filter screen is in contact with the upper side of the water-dividing protrusions.

[0013] As an improvement, multiple sets of water collection frames are installed on the outside of the tower body, the water collection frames cover the outside of multiple sets of drainage pipes, a connecting pipe is installed on the lower side of the water collection frames, and a sewage collection pipe connected to the connecting pipe is installed on the rear side of the tower body.

[0014] As an improvement, the exhaust end of the smoke inlet pipe is a rectangular frame, and the smoke inlet end is a circular pipe.

[0015] III. Beneficial Effects

[0016] The advantages of this utility model compared with the prior art are as follows: the flue gas inside the tower body is guided by multiple sets of staggered inclined drainage channels, the dust particles in the flue gas are blocked by multiple sets of filter screens, and the water curtain is sprayed out through the water curtain nozzles. The dust particles in the flue gas come into contact with the water curtain, and the flue gas is sprayed in multiple layers of staggered flow. The dust particles dissolve in the water and the acidic gases in the flue gas are removed.

[0017] Multiple atomizing nozzles spray water onto the filter screen to clean dust particles, which are then carried by the water flow into the inclined drainage trough and discharged from the tower body through multiple drainage pipes. Attached Figure Description

[0018] Figure 1 This is a cross-sectional structural diagram of a multi-layer cross-flow spray scrubbing tower according to this utility model.

[0019] Figure 2 This is a schematic diagram of the front structure of a multi-layer cross-flow spray scrubbing tower according to this utility model.

[0020] Figure 3 This is a schematic diagram of the rear structure of a multi-layer cross-flow spray scrubbing tower according to this utility model.

[0021] Figure 4 This is a schematic diagram of the outer structure of a multi-layer cross-flow spray scrubbing tower according to this utility model.

[0022] Figure 5 This is a schematic diagram of the upper structure of the inclined drainage channel of a multi-layer cross-flow spray scrubbing tower according to this utility model.

[0023] Figure 6 This is a schematic diagram of the lower structure of the inclined drainage channel of a multi-layer cross-flow spray scrubbing tower according to this utility model.

[0024] As shown in the figure: 1. Tower body; 2. Smoke inlet pipe; 3. Smoke outlet pipe; 4. Sloping drainage trough; 5. Water distribution ridge; 6. Water baffle; 7. Water spray pipe; 8. Water curtain spray hole; 9. Atomizing nozzle; 10. Water supply pipe; 11. Filter screen; 12. U-shaped connecting plate; 13. Drainage pipe; 14. Water collection frame; 15. Connecting pipe; 16. Sewage collection pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] As attached Figure 1 Appendix Figure 2 and attached Figure 5 As shown, a multi-layer cross-flow spray scrubbing tower includes a tower body 1. A smoke inlet pipe 2 is installed on the lower part of one side wall of the tower body 1. The smoke inlet pipe 2 has a rectangular frame at the exhaust end and a round pipe at the inlet end, so that the flue gas is evenly discharged to the bottom of the tower body 1. A smoke exhaust pipe 3 is installed on the top of the tower body 1, through which the treated flue gas is discharged.

[0028] Multiple sets of inclined drainage channels 4 are installed on the inner side of the tower body 1. The multiple sets of inclined drainage channels 4 are respectively installed on the inner walls of opposite sides of the tower body 1, and the inclination directions of two adjacent sets of inclined drainage channels 4 are opposite. A U-shaped connecting plate 12 is provided between the lower sides of the three side walls of the inclined drainage channels 4. The U-shaped connecting plate 12 is sealed to the side wall of the tower body 1. The inclined direction of the inclined drainage channels 4 is inclined upward from the end fixed to the inner side wall of the tower body 1. A baffle plate 6 is installed above the side of the inclined drainage channels 4 that is not connected to the side wall of the tower body 1. The baffle plate 6 and the side wall of the tower body 1 are the smoke guide port. The smoke inside the tower body 1 is guided by the multiple sets of inclined drainage channels 4, and the smoke flows in a Z-shape.

[0029] As attached Figure 2 Appendix Figure 3 Appendix Figure 4 Appendix Figure 5 and attached Figure 6 As shown, a filter screen 11 is installed on the lower side of the inclined drainage trough 4. The flue gas first passes through the filter screen 11 to filter the dust particles inside. A water spray pipe 7 is installed on the lower side of the inclined drainage trough 4. A water supply pipe 10 is installed at one end of the water spray pipe 7. The water supply pipe 10 passes through the tower body 1 in a sealed manner and is connected to an external water pump. The water pump sends external water to the water spray pipe 7. A water curtain spray hole 8 is provided on the lower side of the water spray pipe 7. Water curtain is sprayed out through the water curtain spray hole 8, so that the dust particles and acidic gases in the flue gas dissolve in the water and fall into the inclined drainage trough 4. A baffle plate 6 prevents overflow from the upper edge of the inclined drainage trough 4. A multi-component water-distributing protrusion 5 is provided on the upper side of the inclined drainage trough 4 to divert the water on the upper side of the inclined drainage trough 4, so that some flue gas comes into contact with the water surface on the upper side of the inclined drainage trough 4, thereby improving the effect of dissolving dust particles in water.

[0030] Multiple sets of drainage pipes 13 pass through the opposite side walls of the tower body 1. The multiple sets of drainage pipes 13 are located on the upper side of the bottom of the inclined drainage trough 4. Multiple sets of water collection frames 14 are installed on the outside of the tower body 1. The water collection frames 14 cover the outside of the multiple sets of drainage pipes 13. The drainage pipes 13 discharge the sewage from the bottom of the inclined drainage trough 4 into the water collection frames 14. A connecting pipe 15 is installed on the lower side of the water collection frames 14. A sewage collection pipe 16 connected to the connecting pipe 15 is installed on the rear side of the tower body 1. Sewage is sent to the sewage collection pipe 16 through the connecting pipe 15 and discharged through the sewage collection pipe 16 for purification treatment.

[0031] Example 2

[0032] Based on Example 1, in order to clean the filter screen 11, as shown in the attached... Figure 6 As shown, the side wall and bottom of the water spray pipe 7 are inclined, and multiple sets of atomizing nozzles 9 are installed. The multiple sets of atomizing nozzles 9 spray water mist onto the filter screen 11. The dust particles on the side of the filter screen 11 away from the atomizing nozzles 9 dissolve in the water and flow downward with the water. The lower side of the filter screen 11 is in contact with the upper side of the water-dividing protrusion 5. The sewage flows from the water channels on both sides of the water-dividing protrusion 5 to the bottom of the inclined drainage channel 4 for sewage collection.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0035] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A multi-layer cross-flow spray scrubbing tower, comprising a tower body (1), wherein a smoke inlet pipe (2) is installed on the lower part of one side wall of the tower body (1), and a smoke exhaust pipe (3) is installed on the top of the tower body (1), characterized in that: Multiple sets of inclined drainage channels (4) are installed on the inner side of the tower body (1). The multiple sets of inclined drainage channels (4) are respectively installed on the inner walls of opposite sides of the tower body (1), and the inclined directions of two adjacent sets of inclined drainage channels (4) are opposite. Multiple sets of drainage pipes (13) pass through the opposite side walls of the tower body (1), and the multiple sets of drainage pipes (13) are located on the upper side of the bottom of the inclined drainage channels (4). A water spray pipe (7) is installed on the lower side of the inclined drainage trough (4). A water supply pipe (10) is installed at one end of the water spray pipe (7). The water supply pipe (10) passes through the tower body (1) in a sealed manner. A water curtain spray hole (8) is provided on the lower side of the water spray pipe (7). The side wall and bottom of the water spray pipe (7) are inclined and multiple sets of atomizing nozzles (9) are installed. A filter screen (11) is installed on the lower side of the inclined drainage trough (4). The multiple sets of atomizing nozzles (9) spray water mist onto the filter screen (11).

2. The multi-layer cross-flow spray scrubbing tower according to claim 1, characterized in that: The inclined drainage channel (4) is inclined upward from one end fixed to the inner side wall of the tower body (1). A baffle plate (6) is installed above the side of the inclined drainage channel (4) that is not connected to the side wall of the tower body (1). The baffle plate (6) and the side wall of the tower body (1) are a smoke inlet.

3. A multi-layer cross-flow spray scrubbing tower according to claim 2, characterized in that: A U-shaped connecting plate (12) is provided between the lower sides of the three side walls of the inclined drainage trough (4), and the U-shaped connecting plate (12) is sealed to the side wall of the tower body (1).

4. A multi-layer cross-flow spray scrubbing tower according to claim 3, characterized in that: The inclined drainage channel (4) is provided with multi-component water-dividing protrusions (5) on its upper side, and the lower side of the filter screen (11) is in contact with the upper side of the water-dividing protrusions (5).

5. A multi-layer cross-flow spray scrubbing tower according to claim 1, characterized in that: Multiple sets of water collection frames (14) are installed on the outside of the tower body (1). The water collection frames (14) cover the outside of multiple sets of drainage pipes (13). A connecting pipe (15) is installed on the lower side of the water collection frames (14). A sewage collection pipe (16) connected to the connecting pipe (15) is installed on the rear side of the tower body (1).

6. A multi-layer cross-flow spray scrubbing tower according to claim 1, characterized in that: The exhaust end of the smoke inlet pipe (2) is a rectangular frame, and the smoke inlet end is a round pipe.

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