Tail gas purification device and spraying equipment

Abstract

The utility model discloses a tail gas purification device and spraying equipment, and belongs to the technical field of paint spraying equipment, the tail gas purification device comprises a dust falling tower, and the upper end of the interior of the dust falling tower is provided with a dust falling assembly; the dust falling assembly comprises a spraying cavity formed in the upper end of the interior of the dust falling tower, an annular water pipe is arranged at the upper end of the interior of the spraying cavity, a plurality of groups of nozzles are arranged on the surface of the annular water pipe, one end of the annular water pipe is connected with a water outlet pipe, and the annular water pipe is connected with the water supply assembly through the water outlet pipe; through the arrangement of the dust falling assembly, dust mixed in waste gas can be subjected to dust falling, the situation that a large amount of dust is gathered to affect normal work of the purification device is prevented, the purification effect of the purification device is effectively improved, the waste gas is conveyed into the spraying cavity from the air inlet, then clear water in the annular water pipe is sprayed out from the spraying head, and the purification effect is improved. Furthermore, dust in the waste gas can be cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of paint spraying equipment, in particular to an exhaust gas purification device and spraying equipment. Background Art

[0002] During the use of spray equipment, the two-phase suspension formed by the atomization of paint and solvent escapes into the surrounding air, polluting the air. The existing tail gas purification device of spray equipment does not perform dust reduction when purifying the exhaust gas in the air, and the large amount of dust accumulation will affect the purification efficiency of the purification device, making it easy for the exhaust gas to be discharged without being purified, which will further pollute the air.

[0003] For example, a Chinese patent with application number CN202020621943.7 discloses an exhaust gas purification device for a coating production line, including a purification box, one side surface of the purification box is fixedly connected to an air intake pipe, one end of the air intake pipe is fixedly connected to an air intake hood, the surface of the air intake hood is conical, the inner wall of the air intake pipe is fixedly connected to an air intake fan, the inner wall of the purification box is fixedly connected to a connecting plate, and the central surface of the connecting plate is fixedly connected to a first bearing.

[0004] The exhaust gas purification device of the coating production line in the above patent also has a structure that does not perform dust reduction treatment on the exhaust gas in the air, which affects the purification of the exhaust gas. Therefore, we need to propose an exhaust gas purification device and spraying equipment. Utility Model Content

[0005] The purpose of the utility model is to provide an exhaust gas purification device and a spraying device, which have a structure for carrying out dust reduction treatment on the exhaust gas in the air, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an exhaust gas purification device and a spraying device, comprising a dust reduction tower, wherein the upper end of the dust reduction tower is provided with a dust reduction assembly for reducing dust in the exhaust gas, a filter assembly for filtering a mixture of dust and water is provided below the dust reduction assembly, and a water supply assembly for supplying water to the dust reduction assembly is provided below the filter assembly;

[0007] The dust reduction component includes a spray chamber arranged at the upper end of the dust reduction tower, an annular water pipe is arranged at the upper end of the spray chamber, the annular water pipe is fixedly installed on the inner wall of the dust reduction tower, a plurality of groups of nozzles are arranged on the surface of the annular water pipe, one end of the annular water pipe is connected to a water outlet pipe, and the annular water pipe is connected to the water supply component through the water outlet pipe.

[0008] Preferably, the filtering assembly includes a collecting hopper fixedly mounted on the inner wall of the dust suppression tower, the collecting hopper is arranged correspondingly at the lower end of the spray chamber, and a three-way pipe is arranged at the bottom end of the collecting hopper.

[0009] Preferably, a filter screen is obliquely arranged inside the three-way pipe, a vibration motor is arranged below the filter screen, one end of the vibration motor is fixedly mounted on the inner wall of the lower end of the three-way pipe, a sewage outlet is arranged at the branch pipe of the three-way pipe, and a waste bin is arranged below the sewage outlet.

[0010] Preferably, the water supply assembly includes a water storage chamber arranged inside the bottom end of the dust suppression tower, the water storage chamber is arranged correspondingly below the three-way pipe, the upper end of the water storage chamber is connected with the bottom end of the three-way pipe through a pipe, and a water pump is fixedly installed inside the water storage chamber, and one end of the water pump is connected with one end of the water outlet pipe.

[0011] Preferably, an air inlet is provided on one side of the dust reduction tower, the air inlet is communicated with the spray chamber, the top of the dust reduction tower is connected to an air supply assembly, and the dust reduction tower is connected to a purification assembly via the air supply assembly.

[0012] Preferably, the gas supply assembly includes a first gas supply pipe fixedly installed on the top of the dust suppression tower, one end of the first gas supply pipe is connected to an exhaust fan, the lower end of the exhaust fan is connected to a second gas supply pipe, and one end of the second gas supply pipe is connected to the purification assembly.

[0013] Preferably, the purification component includes a purification box fixedly installed on one end of the second gas pipe, an infrared heating tube is provided on one side of the purification box, and an activated carbon layer is provided on the other side of the purification box, and the activated carbon layer is located on one side of the infrared heating tube.

[0014] Preferably, an exhaust port is provided at one end of the top of the purification box, the bottom end of the exhaust port is located at one side of the activated carbon layer, and an induced draft fan is provided at the upper end of the exhaust port.

[0015] Preferably, a spraying equipment comprises the above-mentioned exhaust gas purification device.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model can reduce the dust mixed in the exhaust gas by setting the dust reduction component, prevent the large amount of dust from gathering and affecting the normal operation of the purification device, effectively improve the purification effect of the purification device, transport the exhaust gas from the air inlet to the inside of the spray chamber, and then the clean water in the annular water pipe is sprayed out from the nozzle, so as to clean the dust in the exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2It is a structural schematic diagram of the front side of the utility model;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the front side of the utility model;

[0021] Figure 4 It is a three-dimensional enlarged structural schematic diagram of the annular water pipe of the utility model.

[0022] In the figure: 1. dust suppression tower; 2. purification box; 3. exhaust fan; 4. air inlet; 5. sewage outlet; 6. waste barrel; 7. first air pipeline; 8. second air pipeline; 9. exhaust outlet; 10. water outlet pipe; 11. collecting bucket; 12. filter screen; 13. three-way pipe; 14. water storage chamber; 15. water pump; 16. circular water pipe; 17. nozzle; 18. spray chamber; 19. vibration motor; 20. infrared heating tube; 21. activated carbon layer; 22. induced draft fan. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides a technical solution: an exhaust gas purification device and a spraying device, comprising a dust reduction tower 1, wherein a dust reduction component for reducing dust in the exhaust gas is arranged at the upper end of the dust reduction tower 1; the dust reduction component comprises a spray chamber 18 arranged at the upper end of the dust reduction tower 1, and an annular water pipe 16 is arranged at the upper end of the spray chamber 18, and the annular water pipe 16 is fixedly installed on the inner wall of the dust reduction tower 1, and a plurality of groups of nozzles 17 are arranged on the surface of the annular water pipe 16, and one end of the annular water pipe 16 is connected to a water outlet pipe 10, and the annular water pipe 16 is connected to the water supply component through the water outlet pipe 10.

[0025] Specifically, through the setting of the dust reduction component, the dust mixed in the exhaust gas can be reduced, and the large amount of dust accumulation can be prevented from affecting the normal operation of the purification device, thereby effectively improving the purification effect of the purification device. When the exhaust gas needs to be reduced in dust, the exhaust gas is transported from the air inlet 4 to the inside of the spray chamber 18, and then clean water is transported to the inside of the annular water pipe 16, so that the clean water can be evenly sprayed out by several groups of nozzles 17 installed at the lower end of the annular water pipe 16. The setting of the nozzle 17 allows the clean water to be sprayed in a mist form, thereby increasing the contact between the clean water and the dust, and thus the dust in the exhaust gas can be cleaned.

[0026] Preferably, a filter assembly for filtering the dust and water mixture is arranged below the dust reduction assembly; the filter assembly includes a collecting bucket 11 fixedly mounted on the inner wall of the dust reduction tower 1, the collecting bucket 11 is arranged corresponding to the lower end of the spray chamber 18, and a three-way pipe 13 is arranged at the bottom end of the collecting bucket 11.

[0027] Preferably, a filter screen 12 is obliquely arranged inside the three-way pipe 13, a vibration motor 19 is arranged below the filter screen 12, one end of the vibration motor 19 is fixedly mounted on the inner wall of the lower end of the three-way pipe 13, a sewage outlet 5 is arranged at the branch pipe of the three-way pipe 13, and a waste bin 6 is arranged below the sewage outlet 5.

[0028] Specifically, through the setting of the filtering component, the mixture after spraying can be filtered and separated, the waste residue in the mixture can be discharged, and the water resources can be recycled. The collecting bucket 11 below the spray chamber 18 can gather the mixture produced after spraying together, so that the mixture can enter the inside of the three-way pipe 13 from the bottom end of the collecting bucket 11, and then the inclined filter net 12 inside the three-way pipe 13 separates the waste residue and water in the mixture, so that the water can enter the water storage chamber 14 from the bottom end of the three-way pipe 13, leaving the waste residue on the upper surface of the filter net 12, so that the waste residue can enter the branch pipe of the three-way pipe 13 from the top of the filter net 12, and then the waste residue is sent from the sewage outlet 5 to the waste bucket 6 to avoid pollution to the environment. Among them, the setting of the vibration motor 19 can shake off the waste residue gathered on the inclined surface of the filter net 12 to avoid the waste residue affecting the filtering effect of the filter net 12.

[0029] Preferably, a water supply assembly for supplying water to the dust reduction group is provided below the filter assembly; the water supply assembly includes a water storage chamber 14 provided inside the bottom end of the dust reduction tower 1, the water storage chamber 14 is correspondingly provided below the three-way pipe 13, the upper end of the water storage chamber 14 is connected with the bottom end of the three-way pipe 13 through a pipeline, a water pump 15 is fixedly installed inside the water storage chamber 14, and one end of the water pump 15 is connected with one end of the water outlet pipe 10.

[0030] Specifically, through the setting of the water supply component, clean water can be transported to the inside of the annular water pipe 16, and filtered water can also be received, thereby realizing water recycling and effectively reducing the waste of water resources. When the main water supply is in operation, the water pump 15 is started to allow the water pump 15 to transport the clean water inside the water storage chamber 14 to the inside of the water outlet pipe 10, and then the water outlet pipe 10 sends the clean water into the inside of the annular water pipe 16, thereby realizing the water supply to the annular water pipe 16, so that the dust reduction component can complete the treatment of dust in the exhaust gas.

[0031] Preferably, an air inlet 4 is provided on one side of the dust reduction tower 1, and the air inlet 4 is connected to the spray chamber 18. The top of the dust reduction tower 1 is connected to an air supply assembly; the air supply assembly includes a first air supply pipe 7 fixedly installed on the top of the dust reduction tower 1, one end of the first air supply pipe 7 is connected to the exhaust fan 3, the lower end of the exhaust fan 3 is connected to the second air supply pipe 8, and one end of the second air supply pipe 8 is connected to the purification assembly.

[0032] Specifically, through the coordinated use of the exhaust fan 3, the first air pipe 7 and the second air pipe 8, the exhaust gas is sent into the interior of the spray chamber 18 from the air inlet 4, and then the exhaust gas is subjected to dust reduction. The exhaust gas after dust reduction is sucked by the exhaust fan 3 and enters the interior of the first air pipe 7 at a faster speed. Then the exhaust fan 3 sends the exhaust gas into the interior of the purification box 2 through the second air pipe 8, thereby achieving purification of the exhaust gas.

[0033] Preferably, the dust reduction tower 1 is connected to a purification component via a gas supply component; the purification component includes a purification box 2 fixedly mounted on one end of a second gas supply pipe 8, an infrared heating tube 20 is provided on one side of the purification box 2, and an activated carbon layer 21 is provided on the other side of the purification box 2, and the activated carbon layer 21 is located on one side of the infrared heating tube 20. By providing the infrared heating tube 20, the exhaust gas entering the purification box 2 can be purified, and the exhaust gas can be decomposed into harmless gas and then discharged. By providing the activated carbon layer 21, the purified gas can be subjected to secondary treatment, which can effectively improve the purification effect of the gas and prevent the discharged gas from polluting the environment.

[0034] Preferably, an exhaust port 9 is provided at one end of the top of the purification box 2, the bottom end of the exhaust port 9 is located on one side of the activated carbon layer 21, and an induced draft fan 22 is provided at the upper end of the exhaust port 9. By setting the induced draft fan 22, the discharge of the purified gas inside the purification box 2 can be accelerated, and the discharge efficiency can be improved.

[0035] Preferably, a spraying equipment includes the above-mentioned exhaust gas purification device and also includes a sprayer for spraying objects. When the spraying equipment is working, the sprayer sprays the object, and the exhaust gas generated by the sprayer during operation will be purified by the exhaust gas purification device before being discharged, thereby reducing the pollution of the environment caused by the spraying equipment during operation.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An exhaust gas purification device, comprising a dust suppression tower (1), characterized in that: The dust reduction tower (1) is provided with a dust reduction assembly for reducing dust in the exhaust gas at the upper end thereof, a filter assembly for filtering a mixture of dust and water is provided below the dust reduction assembly, and a water supply assembly for supplying water to the dust reduction assembly is provided below the filter assembly; The dust reduction component comprises a spray chamber (18) arranged at the upper end of the interior of the dust reduction tower (1); an annular water pipe (16) is arranged at the upper end of the interior of the spray chamber (18); the annular water pipe (16) is fixedly mounted on the inner wall of the dust reduction tower (1); a plurality of groups of spray heads (17) are arranged on the surface of the annular water pipe (16); one end of the annular water pipe (16) is connected to a water outlet pipe (10); and the annular water pipe (16) is connected to the water supply component via the water outlet pipe (10).

2. The exhaust gas purification device according to claim 1, characterized in that: The filtering assembly comprises a collecting hopper (11) fixedly mounted on the inner wall of the dust suppression tower (1); the collecting hopper (11) is arranged corresponding to the lower end of the spray chamber (18); and a three-way pipe (13) is arranged at the bottom end of the collecting hopper (11).

3. The exhaust gas purification device according to claim 2, characterized in that: A filter screen (12) is obliquely arranged inside the three-way pipe (13), a vibration motor (19) is arranged below the filter screen (12), one end of the vibration motor (19) is fixedly mounted on the inner wall of the lower end of the three-way pipe (13), a sewage outlet (5) is arranged at the branch pipe of the three-way pipe (13), and a waste bucket (6) is arranged below the sewage outlet (5).

4. The exhaust gas purification device according to claim 1, characterized in that: The water supply assembly comprises a water storage chamber (14) arranged inside the bottom end of the dust suppression tower (1), the water storage chamber (14) being arranged correspondingly below the three-way pipe (13), the upper end of the water storage chamber (14) being connected to the bottom end of the three-way pipe (13) through a pipeline, a water pump (15) being fixedly installed inside the water storage chamber (14), one end of the water pump (15) being connected to one end of the water outlet pipe (10).

5. The exhaust gas purification device according to claim 1, characterized in that: An air inlet (4) is provided on one side of the dust reduction tower (1), the air inlet (4) is in communication with the spray chamber (18), a gas supply assembly is connected to the top of the dust reduction tower (1), and the dust reduction tower (1) is connected to a purification assembly via the gas supply assembly.

6. The exhaust gas purification device according to claim 5, characterized in that: The air supply component comprises a first air supply pipe (7) fixedly mounted on the top of the dust suppression tower (1), one end of the first air supply pipe (7) is connected to an exhaust fan (3), the lower end of the exhaust fan (3) is connected to a second air supply pipe (8), and one end of the second air supply pipe (8) is connected to the purification component.

7. The exhaust gas purification device according to claim 6, characterized in that: The purification component comprises a purification box (2) fixedly mounted on one end of the second gas supply pipe (8), an infrared heating tube (20) being arranged on one side of the purification box (2), and an activated carbon layer (21) being arranged on the other side of the purification box (2), wherein the activated carbon layer (21) is located on one side of the infrared heating tube (20).

8. The exhaust gas purification device according to claim 7, characterized in that: An exhaust port (9) is provided at one end of the top of the purification box (2), the bottom end of the exhaust port (9) is located on one side of the activated carbon layer (21), and an induced draft fan (22) is provided at the upper end of the exhaust port (9).

9. A spraying device, characterized in that: It comprises the exhaust gas purification device according to any one of claims 1-8.

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