Compound paint mist filter

Abstract

The invention relates to a compound paint mist filter which comprises a spraying chamber and a filtering chamber, the spraying chamber communicates with the filtering chamber, an air inlet is formed in the spraying chamber, an air outlet is formed in the filtering chamber, a spraying assembly is arranged on the spraying chamber, the spraying assembly comprises a water tank arranged on the spraying chamber, and a main water pipe is arranged on the water tank in a communicating mode. A water pump is arranged on the main water pipe, a plurality of corrugated pipes are arranged on the main water pipe in a communicating mode, the corrugated pipes are vertically arranged in the spraying chamber and are provided with a plurality of water outlet pipes in a communicating mode, the water outlet pipes are perpendicular to the corrugated pipes, a plurality of atomizing nozzles are arranged on the water outlet pipes in a communicating mode, and the water outlet directions of the atomizing nozzles face the air inlet; paint mist waste gas is preliminarily filtered through the spraying assembly, and the content of paint mist particles in the paint mist waste gas entering the filtering chamber is reduced, so that the blockage probability of a filtering carton in the filtering chamber is reduced, the replacement frequency of the filtering carton by an operator is reduced, the overall filtering time is shortened, and the filtering efficiency is improved. The paint mist waste gas filtering device has the effect of improving the paint mist waste gas filtering efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of filters, and in particular to a duplex paint mist filter. Background Art

[0002] With the rapid development of my country's manufacturing industry, spraying technology is needed in many industries such as automobiles, furniture, and wood carvings. The specific method of spraying technology is mainly to use a spray gun to atomize the paint and apply it to the surface of the sprayed part. In this process, paint mist will be formed due to factors such as airflow. The formed paint mist mixes into the air to form paint mist waste gas, and the paint mist waste gas needs to be separated and filtered before it can be discharged, otherwise it will cause serious adverse effects on the environment and human health.

[0003] At present, the filtration of paint mist exhaust gas mainly adopts the paint mist carton dry filtration method. The paint mist exhaust gas passes through the air inlet of the paint mist carton. During the flow of the paint mist exhaust gas in the carton, it constantly collides with the maze structure inside the carton, causing the paint mist particles to adhere to the inner wall of the carton, thereby achieving the purpose of separating the paint mist.

[0004] However, with the use of the paint mist carton, more and more paint mist particles and dust accumulate inside the paint mist carton, and the paint mist carton is gradually clogged by the particles and dust, which reduces the filtration efficiency. Therefore, in order to ensure the filtration effect of the carton, the operator needs to frequently replace the filter carton. During the replacement process, the work process of filtering the paint mist exhaust gas needs to be suspended. As the number of replacements increases, the filtration time of the paint mist exhaust gas continues to increase, which leads to lower filtration efficiency and obvious shortcomings. Summary of the invention

[0005] In order to reduce the number of times the filter paper box is replaced, shorten the filtering time, and improve the filtering efficiency of paint mist exhaust gas, the present application provides a duplex paint mist filter.

[0006] The present application provides a composite paint mist filter adopting the following technical solution: A compound paint mist filter comprises a spray chamber and a filter chamber, the spray chamber and the filter chamber are connected, the spray chamber is provided with an air inlet, the filter chamber is provided with an air outlet, the filter chamber is provided with a filter paper box, the spray chamber is provided with a spray assembly, the spray assembly comprises a water tank arranged on the spray chamber, the water tank is connected with a main water pipe, the main water pipe is provided with a water pump, the main water pipe is connected with a plurality of bellows, the bellows are vertically arranged inside the spray chamber and connected with a plurality of water outlet pipes, the plurality of water outlet pipes are all perpendicular to the bellows, the water outlet pipe is connected with a plurality of atomizing nozzles, and the water outlet direction of the atomizing nozzles is arranged toward the air inlet.

[0007] By adopting the above technical scheme, before filtering the paint mist exhaust gas, the water pump is started, and the water in the water tank flows along the main water pipe to the bellows and the outlet pipe in sequence under the extraction of the water pump, and finally becomes tiny water droplets under the action of the atomizing nozzle and is sprayed toward the air inlet, and then the paint mist exhaust gas is introduced into the air inlet. During the flow of the paint mist exhaust gas in the spray chamber, it constantly collides with the tiny water droplets sprayed toward the air inlet. Under the action of inertia and adhesion of water droplets, some paint mist particles and dust in the paint mist exhaust gas are captured by the water droplets, and the particle concentration in the paint mist exhaust gas is reduced, thereby achieving preliminary filtration of the paint mist exhaust gas. The paint mist exhaust gas that has undergone preliminary filtration flows into the filter chamber. The reduction in the concentration of paint mist particles reduces the probability of clogging of the filter paper box in the filter chamber, and the operator reduces the frequency of replacement of the filter paper box, thereby shortening the overall filtration time and improving the filtration efficiency of the paint mist exhaust gas.

[0008] Optionally, the spray chamber is provided with baffles corresponding to the bellows in sequence along the length direction, and two adjacent baffles are arranged alternately. The water outlet end of the bellows extends to the corresponding interior of the baffle, and the water outlet pipe is horizontally arranged inside the baffle. The baffle is provided with water outlets corresponding to the atomizing nozzles in a one-to-one manner, and the water spraying part of the atomizing nozzle is arranged in the water outlet.

[0009] By adopting the above technical scheme, the multiple baffles arranged in an staggered manner extend the flow path of the paint mist exhaust gas in the spray chamber, and the flow time of the paint mist exhaust gas in the spray chamber is prolonged, so that the paint mist exhaust gas can better contact with water droplets, thereby improving the initial filtering effect of the spray component on the paint mist exhaust gas, and further improving the filtration efficiency of the paint mist exhaust gas.

[0010] Optionally, the opposite surfaces of two adjacent baffles are respectively provided with an upper rack plate and a lower rack plate, and the upper rack plate and the lower rack plate are staggered and meshed with a driving gear, and the driving gear is rotatably connected to the inner wall of the spray chamber, and sliders are provided on the opposite side walls of the baffles. A slide groove that slidably cooperates with the slider is opened on the inner wall of the filter chamber, and the length direction of the slide groove is perpendicular to the flow direction of the exhaust gas. A rotating component that drives the driving gear to rotate is provided on the outer wall of the spray chamber.

[0011] By adopting the above technical scheme, in the process of paint mist exhaust gas flowing in the spray chamber, the driving gear is driven to rotate through the rotating component, and the rotation of the driving gear drives the upper rack plate to move downward and the lower rack plate to move upward. Under the guidance of the slide groove and the slider, the upper rack plate and the lower rack plate respectively move with the connected baffles, and the baffles drive the atomizing nozzle to move during the movement, thereby effectively expanding the spray range of the atomizing nozzle. At the same time, the change in the relative position of the baffle also forces the paint mist exhaust gas to change direction multiple times in the spray chamber, further extending the flow time of the paint mist exhaust gas in the spray chamber, and improving the initial filtering effect of the spray assembly on the paint mist exhaust gas.

[0012] Optionally, a sewage pipe is connected to the bottom surface of the spray chamber, a sewage valve is provided on the sewage pipe, and the bottom surface of the spray chamber is inclined and the inclination direction extends toward the sewage pipe.

[0013] By adopting the above technical solution, water droplets fall to the bottom of the spray chamber after combining with paint mist particles. Under the guidance of the inclined bottom surface of the spray chamber, the wastewater flows into the drain pipe. When the wastewater accumulates to a certain height, the drain valve is opened to discharge the wastewater. This arrangement avoids the accumulation of wastewater in the spray chamber and reduces the impact of wastewater on the filtering effect of the spray assembly.

[0014] Optionally, a baffle is provided at the connection point between the spray chamber and the filter chamber, a partition plate is rotatably connected to the filter chamber, the partition plate is tightly fitted with the baffle, the upper and lower surfaces of the partition plate respectively form a filter area and a replacement area with the inner wall of the filter chamber, an opening connected to the filter area is provided on the baffle, a filter paper box and a clamping assembly are provided in the filter area and the replacement area, the clamping assembly is used to fix the filter paper box, a replacement port is provided on the replacement area, a rotating shaft is rotatably connected to the replacement port, a sealing door is provided on the outer surface of the rotating shaft, the sealing door blocks the replacement port, a second motor is provided on the outer wall of the filter chamber, and the output shaft of the second motor is coaxially and fixedly connected to the partition plate.

[0015] By adopting the above technical scheme, under the blocking of the baffle and the partition plate, the paint mist exhaust gas passing through the spray room can only flow through the opening to the filter area for filtration. When the filter paper box in the filter area is blocked and the filtering effect becomes worse, the second motor starts and drives the partition plate to rotate 180 degrees. The unblocked filter paper box in the replacement area enters the filter area to continue filtering, and the blocked filter paper box enters the replacement area. The operator turns the sealing door upward to open the replacement port. At this time, the worker can replace the filter paper box in the replacement area. By setting the replacement area and the filtration area, the replacement process and the filtration process can be carried out simultaneously. The replacement process of the operator in the replacement area complements and interferes with the filtration process in the filtration area, eliminating the replacement time in the traditional filtration process, thereby further improving the filtration efficiency of the paint mist exhaust gas.

[0016] Optionally, the clamping assembly includes a bidirectional screw, a guide rod and two clamping plates, and driving grooves and guide grooves are respectively provided at opposite ends of the surface of the partition plate, the bidirectional screw is rotatably connected in the driving groove, the guide rod is arranged in the guide groove, one end of the two clamping plates are respectively threadedly connected to the rod body at two ends of the bidirectional screw with opposite thread rotation directions, and the other end is slidably connected to the guide rod, the clamping plate is a hollow plate and the clamping surface abuts the filter paper box, a cavity is provided on the side wall of the filter chamber, a driven gear is rotatably connected in the cavity, the driven gear is coaxially and fixedly connected to the bidirectional screw, and a driving assembly for driving the driven gear to rotate is provided in the replacement area.

[0017] By adopting the above technical solution, after the filter cartons are placed in the replacement area respectively, the driven gear is driven by the driving component to rotate in the opposite direction, and the rotation of the driven gear drives the bidirectional screw to rotate forward, and the rotation of the bidirectional screw drives the two clamping plates to gradually approach the filter cartons at the same time. When the clamping plate abuts against the outer wall of the filter cartons, the filter cartons are fixed on the partition plate, and then the partition plate is rotated to fix the filter cartons again. When the filter cartons need to be replaced, the driven gear is driven by the driving component to rotate in the opposite direction, and the rotation of the driven gear drives the bidirectional screw to rotate in the opposite direction. The rotation of the bidirectional screw drives the two clamping plates to gradually move away from the filter cartons. At this time, the operator can take out the filter cartons from the replacement area more smoothly and conveniently.

[0018] Optionally, the driving assembly includes a driving gear rotatably connected to the cavity, the driving gear is coaxially and fixedly connected to the rotating shaft, a first rack plate is meshed on the driving gear, a second rack plate is provided at the toothless end of the first rack plate, and the toothed end of the second rack plate is meshed with the driven gear, the first rack plate and the second rack plate are both slidably connected to the inner side wall of the cavity, a first spring is provided on the top wall of the cavity, one end of the first spring is connected to the inner side wall of the cavity, and the other end is connected to the second rack plate, and when the first spring is in a natural state, the toothed end of the second rack plate is disengaged from the driven gear.

[0019] By adopting the above technical scheme, in the process of the operator turning the sealing door upward, the rotating shaft rotates and drives the active gear to rotate in the opposite direction, and the active gear drives the first rack plate to move downward, and the first rack plate drives the second rack plate to move downward, and gradually meshes with the driven gear during the movement of the second rack plate. After meshing with the driven gear, the second rack plate that continues to move downward drives the driven gear to rotate in the opposite direction, so that the clamping assembly cancels the clamping effect, and the worker takes out the filter paper box from the replacement area. After the replacement is completed, under the action of the first spring, the first spring pulls the first rack plate to move upward, and the first rack plate drives the second rack plate to move upward during the movement, and the second rack plate drives the driven gear to rotate forward during the upward movement, thereby realizing the clamping assembly to fix the filter paper box. Such a setting realizes the operator's opening and closing of the sealing door and the synchronization of clamping and releasing of the clamping assembly, reducing the step of the operator manually rotating the bidirectional screw to make the clamping plate approach or separate from the filter paper box, thereby shortening the overall time for replacing the filter paper box, and further improving the filtration efficiency of paint mist exhaust gas.

[0020] Optionally, a cleaning component is provided in the replacement area, and the cleaning component includes a suction fan, and the filter chamber is located on the outer wall of the replacement area and has a suction port, the suction fan is rotatably connected in the suction port, and the air outlet end of the suction fan is arranged toward the interior of the replacement area, and a plurality of sleeves are provided on the inner wall of the replacement area, and a second spring is provided in each sleeve, one end of the second spring is connected to the inner wall of the sleeve, and the other end is connected to a beating rod, when the second spring is in a natural state, the beating rod is located inside the sleeve, the beating rod is an iron rod, and the outer wall of the clamping plate is provided with a magnetic block corresponding to the beating rod one by one, and the magnetic block is used to adsorb the beating rod.

[0021] By adopting the above technical scheme, during the rotation of the partition plate, the magnetic block gradually moves away from or approaches the beating rod. When the magnetic block is facing the beating rod, the magnetic block absorbs the beating rod, and the beating rod hits the clamping plate. When the magnetic block and the beating rod are misaligned, the beating rod is pulled back into the sleeve by the second spring, thereby realizing the intermittent impact of the beating rod on the clamping plate. During the impact, the paint mist particles and dust blocked in the filter paper box are vibrated away, and at the same time, the clean gas sucked in by the suction fan is blown toward the filter paper box from the opposite direction. Under the blowing of the clean gas, the dust of the paint mist particles blocked in the filter paper box further falls off from the filter paper box. The setting of the cleaning component reduces the degree of blockage inside the filter paper box, thereby improving the filtering effect of the filter paper box on the paint mist exhaust gas, while reducing the number of times the operator needs to replace the filter paper box, thereby improving the convenience of the operator.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. The embodiment of the present application provides a spray assembly to achieve preliminary filtration of the paint mist exhaust gas, thereby reducing the content of paint mist particles in the paint mist exhaust gas entering the filter chamber, thereby reducing the probability of clogging of the filter paper box in the filter chamber, and reducing the frequency of replacement of the filter paper box by operators, thereby shortening the overall filtration time and improving the filtration efficiency of the paint mist exhaust gas; 2. The embodiment of the present application is provided with an upper rack plate, a lower rack plate and a driving gear, and the driving gear rotates to drive the upper rack plate and the lower rack plate to move relative to each other, and during the movement, the two adjacent baffles are driven to move relative to each other, thereby effectively expanding the spray range of the atomizing nozzle. At the same time, the change in the relative position of the baffles also forces the paint mist exhaust gas to change direction multiple times in the spray chamber, further prolonging the flow time of the paint mist exhaust gas in the spray chamber, and improving the initial filtering effect of the spray assembly on the paint mist exhaust gas; 3. The embodiment of the present application sets up a driving assembly and a clamping assembly, and realizes the synchronous opening and closing of the sealing door by the operator and the clamping and releasing of the clamping assembly through the driving assembly, thereby reducing the step of the operator manually turning the bidirectional screw to make the clamping plate approach or separate from the filter paper box, thereby shortening the overall time for replacing the filter paper box and further improving the filtration efficiency of paint mist exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of this application.

[0024] Figure 2 It is a cross-sectional view of the spray chamber and the filter chamber in the embodiment of the present application.

[0025] Figure 3 It is a cross-sectional view of the baffle in the embodiment of the present application.

[0026] Figure 4It is a schematic diagram of the structure of the upper rack plate and the lower rack plate in the embodiment of the present application.

[0027] Figure 5 It is a cross-sectional view of the filter chamber in the embodiment of the present application.

[0028] Figure 6 It is a cross-sectional view of the partition plate in the embodiment of the present application.

[0029] Figure 7 It is a schematic diagram of the structure of the driving component in the embodiment of the present application.

[0030] Figure 8 yes Figure 5 Enlarged view of point A in the middle.

[0031] Explanation of the reference numerals: 1. spray chamber; 101. air inlet; 102. chute; 2. filter chamber; 201. air outlet; 202. replacement port; 203. air inlet; 3. spray assembly; 31. water tank; 32. main water pipe; 33. water pump; 34. bellows; 35. water outlet pipe; 36. atomizing nozzle; 4. filter paper box; 5. baffle; 51. water outlet; 52. upper rack plate; 53. lower rack plate; 54. driving gear; 555. slider; 6. rotating assembly; 61. first motor; 62. pulley; 63. belt; 7. drain pipe; 71. drain valve; 8. baffle; 81. opening; 9. distributor Partition; 91, driving groove; 92, guide groove; 10, filtering area; 11, replacement area; 12, clamping assembly; 121, bidirectional screw rod; 122, guide rod; 123, clamping plate; 124, driven gear; 13, rotating shaft; 131, sealing door; 14, second motor; 15, cavity; 151, guide column; 16, driving assembly; 161, driving gear; 162, first rack plate; 163, second rack plate; 1631, guide hole; 164, first spring; 17, cleaning assembly; 171, suction fan; 172, sleeve; 173, second spring; 174, beating rod; 175, magnetic block. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-8 This application is described in further detail.

[0033] The embodiment of the present application discloses a duplex paint mist filter.

[0034] Reference Figure 1 and Figure 2A compound paint mist filter includes a spray chamber 1 and a filter chamber 2 which are arranged in sequence along the flow direction of the exhaust gas. The interiors of the spray chamber 1 and the filter chamber 2 are interconnected. An air inlet 101 which is connected to the exhaust gas channel is provided at one end of the spray chamber 1. An air outlet 201 is provided at the end of the filter chamber 2 which is away from the air inlet 101. A spray assembly 3 for preliminarily filtering the paint mist exhaust gas is provided in the spray chamber 1. A plurality of filter paper boxes 4 for re-filtering the paint mist exhaust gas are provided in the filter chamber 2. In the present embodiment, the number of the filter paper boxes 4 is two.

[0035] When filtering paint mist exhaust gas, the exhaust gas pipe is connected to the air inlet 101, and the paint mist exhaust gas enters the spray chamber through the air inlet 101. After preliminary filtration by the spray assembly 3 inside the spray chamber 1, the paint mist exhaust gas flows into the filter chamber 2, and after being filtered by the filter paper box 4, it is discharged from the air outlet 201 to the subsequent processing equipment, thereby achieving the filtration of the paint mist exhaust gas.

[0036] Reference Figure 2 and Figure 3 The spray chamber 1 is provided with a plurality of baffles 5 in sequence along the flow direction of the exhaust gas. The baffles 5 are hollow shells. In the present embodiment, there are four baffles 5, which are staggered with each other. The length direction of the baffles 5 is perpendicular to the flow direction of the exhaust gas. With the setting of the baffles 5, the flow path of the paint mist exhaust gas inside the spray chamber 1 is effectively extended, thereby improving the initial filtering effect of the spray assembly 3 on the paint mist exhaust gas.

[0037] Reference Figure 2 and Figure 3 The spray assembly 3 includes a water tank 31 fixedly installed on the top of the filter chamber 2, and the water tank 31 is connected to a main water pipe 32, which is installed on the top surface of the spray chamber 1, and a water pump 33 for extracting water from the water tank 31 is installed on the main water pipe 32, and a bellows 34 corresponding to four baffles 5 is connected to the main water pipe 32, one end of the bellows 34 passes through the top wall of the spray chamber 1 and extends to the inside of the baffle 5, and the bellows 34 is evenly and evenly provided with a plurality of water outlet pipes 35 along the length direction. In the present embodiment, the number of the water outlet pipes 35 is three, and the water outlet pipes 35 are vertically arranged with the bellows 34, and each water outlet pipe 35 is connected to and installed with a plurality of atomizing nozzles 36. In the present embodiment, the number of the atomizing nozzles 36 is four, and a water outlet 51 corresponding to the atomizing nozzles 36 is opened on the baffle 5, and the water spraying part of the atomizing nozzle 36 extends out of the water outlet 51 and is arranged toward the air inlet 101.

[0038] Reference Figure 3 and Figure 4Before filtering, start the water pump 33. The water in the water tank 31 flows along the main water pipe 32 to the bellows 34 and the outlet pipe 35 in sequence under the extraction of the water pump 33, and finally becomes tiny water droplets under the action of the atomizing nozzle 36 and is sprayed toward the air inlet 101, and then the paint mist exhaust gas is introduced into the air inlet 101. During the flow of the paint mist exhaust gas in the spray chamber 1, it constantly collides with the tiny water droplets sprayed toward the air inlet 101. Under the inertia and adhesion of the water droplets, some paint mist particles and dust in the paint mist exhaust gas are captured by the water droplets, and the particle concentration in the paint mist exhaust gas is reduced, thereby achieving preliminary filtration of the paint mist exhaust gas. The paint mist exhaust gas that has undergone preliminary filtration flows into the filter chamber 2. The reduction in the concentration of paint mist particles reduces the probability of blockage of the filter paper box 4 in the filter chamber 2, and the operator reduces the frequency of replacement of the filter paper box 4, thereby shortening the overall filtration time and improving the filtration efficiency of the paint mist exhaust gas.

[0039] Reference Figure 3 and Figure 4 The opposing surfaces of two adjacent baffles 5 are respectively provided with an upper rack plate 52 and a lower rack plate 53, which are slidably connected to the inner wall of the spray chamber 1. The upper rack plate 52 and the lower rack plate 53 are staggered and meshed with a driving gear 54, which is rotatably connected to the inner wall of the spray chamber 1. The opposing surfaces of the baffles 5 are fixedly connected with a slider 555, and a slide groove 102 that slidably cooperates with the slider 555 is opened on the opposing inner wall of the filter chamber 2. The slide groove 102 is provided to cooperate with the slider 555. 2 is perpendicular to the flow direction of the exhaust gas. A rotating assembly 6 for driving two driving gears 54 to rotate synchronously is arranged on the outer wall of the spray chamber 1. The rotating assembly 6 includes a first motor 61 fixedly mounted on the outer wall of the spray chamber 1. The output shaft of the first motor 61 is fixedly connected to the driving gear 54 near the air inlet 101. A belt 63 wheel 62 is coaxially fixedly connected to each driving gear 54. The belt 63 wheel 62 is rotatably connected to the outer wall of the spray chamber 1. A belt 63 is commonly sleeved outside the belt 63 wheel 62.

[0040] Reference Figure 3 and Figure 4In the process of the paint mist exhaust gas flowing in the spray chamber 1, the first motor 61 is started. The first motor 61 drives the two driving gears 54 to rotate synchronously through the transmission action of the belt 63 wheel 62 and the belt 63. The rotation of the driving gear 54 drives the upper rack plate 52 to move downward and the lower rack plate 53 to move upward. Under the guidance of the slide groove 102 and the slider 555, the upper rack plate 52 and the lower rack plate 53 respectively move with the connected baffle plate 5, and the baffle plate 5 drives the atomizing nozzle 36 to move during the movement, thereby effectively expanding the spray range of the atomizing nozzle 36. At the same time, the change in the relative position of the baffle plate 5 also forces the paint mist exhaust gas to change direction multiple times in the spray chamber 1, further extending the flow time of the paint mist exhaust gas in the spray chamber 1, and improving the initial filtering effect of the spray component 3 on the paint mist exhaust gas.

[0041] Reference Figure 2 and Figure 3 A drain pipe 7 is provided on the bottom surface of the spray chamber 1. The bottom surface of the spray chamber 1 connected with the drain pipe 7 is inclined toward the drain pipe 7. A drain valve 71 is installed on the drain pipe 7. After the water droplets combine with the paint mist particles in the paint mist exhaust gas, they fall into the bottom of the spray chamber 1. Under the guidance of the inclined bottom surface of the spray chamber 1, the waste water flows into the drain pipe 7. When the waste water accumulates to a certain height, the drain valve 71 is opened to discharge the sewage. This arrangement avoids the accumulation of sewage in the spray chamber 1 and reduces the influence of sewage on the filtering effect of the spray component 3.

[0042] Reference Figure 2 and Figure 5 A baffle 8 is provided at the connection position between the spray chamber 1 and the filter chamber 2. The baffle 8 is fixedly installed at one end of the spray chamber 1 away from the air outlet 201. A partition plate 9 is rotatably connected inside the filter chamber 2. The end surface of the partition plate 9 facing the baffle 8 is tightly fitted with the baffle 8. The upper and lower surfaces of the partition plate 9 are respectively enclosed with the inner wall of the filter chamber 2 to form a filter area 10 and a replacement area 11. The air outlet 201 is provided with a filter area 10. An opening 81 communicating with the filter area 10 is provided on the baffle 8. The two filter paper boxes 4 in the filter chamber 2 are respectively arranged in the filter area 10 and the replacement area 11. The filter area 10 and the replacement area 11 are both provided with a fixing clamp. A clamping assembly 12 holds the filter paper box 4, a replacement port 202 is opened on the outer wall of the replacement area 11, and a rotating shaft 13 is rotatably connected to the replacement, and a sealing door 131 is fixedly connected to the outer surface of the rotating shaft 13. When the filter is working normally, the sealing door 131 blocks the replacement port 202, and a second motor 14 is fixedly installed on the outer wall of the filter chamber 2 near the air outlet 201. The output shaft of the second motor 14 is coaxially fixedly connected to the rotating shaft of the partition plate 9. The second motor 14 drives the partition plate 9 to rotate 180° each time, and a pressure difference sensor (not shown in the figure) for detecting the pressure difference in the filter area 10 is fixedly installed on the inner wall of the filter area 10.

[0043] Under the blocking of the baffle 8 and the partition plate 9, the paint mist exhaust gas passing through the spray chamber 1 can only flow through the opening 81 to the filter area 10 for re-filtration. As the filtering time of the paint mist exhaust gas increases, the filter paper box 4 in the filter area 10 will gradually become blocked, resulting in a deterioration in the filtering effect, thereby causing the pressure difference in the filter area 10 to gradually increase. When the pressure difference gradually reaches the set value, the pressure difference sensor transmits an electrical signal to control the second motor 14 to start, and the second motor 14 drives the partition plate 9 to rotate 180 degrees. Under the rotation of the partition plate 9, the unblocked filter paper box 4 in the replacement area 11 enters the filter area. The filtering work continues in the filter area 10, and the clogged filter paper box 4 in the filter area 10 enters the replacement area 11. Then the operator rotates the sealing door 131 upward to open the replacement port 202, and the operator takes out the clogged filter paper box 4 from the replacement port 202 for replacement. The replacement process and the filtering process are carried out simultaneously by setting the replacement area 11 and the filtering area 10. The replacement process carried out by the operator in the replacement area 11 complements and interferes with the filtering process in the filtering area 10, which saves the replacement time in the traditional filtering process, thereby further improving the filtering effect on the paint mist exhaust gas.

[0044] Reference Figure 5 and Figure 6 The clamping assembly 12 includes a bidirectional screw rod 121, a guide rod 122 and two clamping plates 123. The upper and lower surfaces of the partition plate 9 are provided with a driving groove 91 and a guide groove 92 at both ends opposite to each other. The bidirectional screw rod 121 is rotatably connected in the driving groove 91, and the guide rod 122 is fixedly connected in the guide groove 92. One end of the two clamping plates 123 is respectively threadedly connected to the two sections of the rod body with opposite threads of the bidirectional screw rod 121, and the other end is slidably connected to the guide rod 122. The clamping plate 123 is a hollow plate cut into an L shape. The clamping plate 1 The clamping surface 23 abuts against the filter paper box 4, the driving groove 91 located in the filter area 10 and the driving groove 91 located in the replacement area 11 are respectively located at opposite ends of the partition plate 9, and a cavity 15 is opened on the side wall of the filter box near the air outlet 201, and one end of the bidirectional screw rod 121 located in the replacement area 11 penetrates the side wall of the filter box and extends into the cavity 15, and a driven gear 124 coaxially fixedly connected to the bidirectional screw rod 121 is rotatably connected in the cavity 15, and a driving component 16 for driving the driven gear 124 to rotate is provided in the replacement area 11.

[0045] Reference Figure 5 , Figure 6 and Figure 7The driving assembly 16 includes a driving gear 161 rotatably connected to the cavity 15. One end of the rotating shaft 13 penetrates the inner wall of the filter chamber 2 and extends into the cavity 15. The driving gear 161 is coaxially fixedly connected to the rotating shaft 13. A first rack plate 162 is meshedly provided on the driving gear 161. The first rack plate 162 is slidably connected to the cavity 15. The toothless end of the first rack plate 162 is fixedly connected to a second rack plate 163. The second rack plate 163 and the first rack plate 162 are staggered up and down. The first rack plate 162 and the second rack plate 163 are both slidably connected in the cavity 15, a guide column 151 is fixedly connected to the top wall of the cavity 15, a first spring 164 is sleeved on the outer wall of the guide column 151, one end of the first spring 164 is fixedly connected to the inner wall of the cavity 15, and the other end is fixedly connected to the second rack plate 163, the second rack plate 163 is provided with a guide hole 1631 that slidably cooperates with the guide column 151, and when the first spring 164 is in a natural state, the toothed end of the second rack plate 163 is disengaged from the driven gear 124.

[0046] Reference Figure 5 , Figure 6 and Figure 7 When replacement is required, the operator rotates the sealing door 131 upwards, at which time the rotating shaft 13 rotates and drives the driving gear 161 to rotate in the opposite direction, and the driving gear 161 drives the first rack plate 162 to move downward, and the first rack plate 162 drives the second rack plate 163 to move downward. During the movement of the second rack plate 163, the toothed end of the second rack plate 163 gradually meshes with the driven gear 124. After meshing with the driven gear 124, the second rack plate 163 that continues to move downward drives the driven gear 124 to rotate in the opposite direction, and the driven gear 124 drives the bidirectional screw rod 121 to rotate in the opposite direction, and the two clamping plates 123 will move in the direction away from the filter paper box 4. At this time, the operator can take out the filter paper box 4 from the replacement area 11 more smoothly and conveniently; After the replacement is completed, under the elastic force of the first spring 164, the first spring 164 pulls the first rack plate 162 to move upward, and the first rack plate 162 drives the second rack plate 163 to move upward during the movement, and the second rack plate 163 drives the driven gear 124 to rotate positively during the upward movement, and the driven gear 124 drives the bidirectional screw rod 121 to rotate positively, and the two clamping plates 123 will move toward the direction close to the filter paper box 4 until they abut against the outer surface of the filter paper box 4, thereby realizing the fixing of the filter paper box 4 by the clamping assembly 12, and such a setting realizes the operator The synchronous clamping and loosening of the opening and closing sealing door 131 and the clamping assembly 12 reduces the steps for the operator to manually rotate the bidirectional screw 121 to make the clamping plate 123 approach or detach from the filter paper box 4, thereby shortening the overall time for replacing the filter paper box 4 and further improving the filtration efficiency of paint mist exhaust gas. At the same time, under the pull of the first spring 164, the toothed end of the second rack plate 163 eventually detaches from the driven gear 124, avoiding the influence of the second rack plate 163 on the driven gear 124 during the process of the partition plate 9 driving the second gear to rotate, thereby improving the stability of the filtration process.

[0047] Reference Figure 5 and Figure 8 A cleaning assembly 17 is provided in the replacement area 11, and the cleaning assembly 17 includes a suction fan 171. The filter chamber 2 is located in the replacement area 11 and is provided with a suction port 203 at one end away from the opening 81. The suction fan 171 is rotatably connected to the suction port 203. The suction end of the suction fan 171 is connected to the clean gas pipeline, and the gas outlet end is arranged toward the inside of the replacement area 11. A plurality of sleeves 172 are fixedly connected to the side wall of one end of the replacement area 11 close to the baffle 8. In the present embodiment, the number of the sleeves 172 is four, and a second spring 173 is provided in each of the four sleeves 172. One end of the second spring 173 is fixedly connected to the inner wall of the sleeve 172, and the other end is fixedly connected to the inner wall of the sleeve 172. A beating rod 174 is connected, and the beating rod 174 is an iron rod. The beating rod 174 is slidably connected to the inside of the sleeve 172. A magnetic block 175 corresponding to the beating rod 174 is fixedly installed on the outer wall of the clamping plate 123 of the replacement area 11 close to the baffle 8. The magnetic block 175 is used to adsorb the beating rod 174. In the initial state, the second spring 173 is in a natural state, and the beating rod 174 is located inside the sleeve 172. When the magnetic block 175 rotates to be on the same straight line as the corresponding beating rod 174, the adsorption force of the magnetic block 175 on the beating rod 174 is greater than the pulling force of the second spring 173 on the beating rod 174, and the magnetic block 175 adsorbs the beating rod 174.

[0048] Reference Figure 5 and Figure 8The partition plate 9 is intermittently driven by the second motor 14 to rotate 180 degrees. The second motor 14 drives the partition plate 9 to drive the clamping plate 123 to rotate. During the rotation of the clamping plate 123, the magnetic block 175 gradually moves away from or approaches the beating rod 174. When the magnetic block 175 rotates to face the beating rod 174, the magnetic block 175 absorbs the beating rod 174, and the beating rod 174 hits the clamping plate 123. At the moment of the impact, the clamping plate 123 vibrates and transmits When the magnetic block 175 rotates to be misaligned with the beating rod 174, the adsorption force of the magnetic block 175 on the beating rod 174 is less than the pulling force of the second spring 173 on the beating rod 174. The second spring 173 pulls the beating rod 174 back into the sleeve 172. When the beating rod 174 hits the clamping plate 123 and vibrates the clamping plate 123, the vibration force on the clamping plate 123 is transmitted to the filter paper box 4, and the second spring 173 pulls the beating rod 174 back into the sleeve 172. The cooperation between 173, the beating rod 174 and the magnetic block 175 realizes the intermittent impact of the beating rod 174 on the clamping plate 123, and at the moment of impact, the paint mist particles and dust blocked in the filter paper box 4 fall off from the filter paper box 4, thereby reducing the degree of blockage inside the filter paper box 4. At the same time, after the filter paper boxes 4 in the filter area 10 and the replacement area 11 are exchanged, the suction fan 171 is started, and the clean gas sucked in by the suction fan 171 is blown to the filter paper box 4 from the opposite direction. In the process of the clean gas blowing the filter paper box 4, the dust of the paint mist particles blocked in the filter paper box 4 further falls off from the filter paper box 4. The setting of the cleaning component 17 reduces the degree of blockage inside the filter paper box 4, thereby improving the filtering effect of the filter paper box 4 on the paint mist exhaust gas, and improving the filtering efficiency of the paint mist exhaust gas. At the same time, the filter paper box 4 also reduces the number of times the operator needs to replace the filter paper box 4, thereby improving the convenience of the operator.

[0049] The implementation principle of a duplex paint mist filter in the embodiment of the present application is as follows: before filtering, the water pump 33 is started, and the water in the water tank 31 flows in sequence along the main water pipe 32 to the bellows 34 and the water outlet pipe 35 under the pumping of the water pump 33, and finally becomes tiny water droplets under the action of the atomizing nozzle 36 and is sprayed toward the air inlet 101, and at the same time the first motor 61 is started, and the first motor 61 drives the driving gear 54 to rotate, and drives the two adjacent baffles 5 to move relative to each other through the upper rack plate 52 and the lower rack plate 53, and then the paint mist exhaust gas is introduced into the air inlet 101. During the flow of the paint mist exhaust gas in the spray chamber 1, it continuously collides with the tiny water droplets sprayed toward the air inlet 101. Under the inertia and adhesion of the water droplets, some of the paint mist particles and dust in the paint mist exhaust gas are captured by the water droplets, and the particle concentration in the paint mist exhaust gas is reduced, thereby achieving the preliminary filtration of the paint mist exhaust gas. The air flows through the opening 81 into the filter area 10. When the filter paper box 4 in the filter area 10 is clogged, the pressure difference sensor transmits an electrical signal to control the second motor 14 to start. The second motor 14 drives the partition plate 9 to rotate 180 degrees. With the rotation of the partition plate 9, the unblocked filter paper box 4 in the replacement area 11 enters the filter area 10 to continue filtering, and the blocked filter paper box 4 in the filter area 10 enters the replacement area 11. Then the operator rotates the sealing door 131 upward to open the replacement port 202. The operator takes out the blocked filter paper box 4 from the replacement port 202 for replacement. The entire filter realizes preliminary filtration of the paint mist exhaust gas through the spray assembly 3. The reduction in the concentration of paint mist particles reduces the probability of blockage of the filter paper box 4 in the filter chamber 2. The operator reduces the frequency of replacement of the filter paper box 4, thereby shortening the overall filtration time and improving the filtration efficiency of the paint mist exhaust gas.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A composite paint mist filter, comprising a spray chamber (1) and a filter chamber (2), wherein the spray chamber (1) and the filter chamber (2) are connected to each other, the spray chamber (1) is provided with an air inlet (101), and the filter chamber (2) is provided with an air outlet (201), characterized in that: The spray chamber (1) is provided with a spray assembly (3), the spray assembly (3) comprising a water tank (31) provided on the spray chamber (1), the water tank (31) being connected to a main water pipe (32), the main water pipe (32) being provided with a water pump (33), the main water pipe (32) being connected to a plurality of bellows (34), the bellows (34) being vertically arranged inside the spray chamber (1) and connected to a plurality of water outlet pipes (35), the plurality of water outlet pipes (35) being perpendicular to the bellows (34), the water outlet pipes (35) being connected to a plurality of atomizing nozzles (36), the water outlet direction of the atomizing nozzles (36) being arranged toward the air inlet (101).

2. A composite paint mist filter according to claim 1, characterized in that: The spray chamber (1) is provided with baffles (5) corresponding to the bellows (34) in sequence along the length direction, two adjacent baffles (5) are arranged in a staggered manner, the water outlet end of the bellows (34) extends to the inside of the corresponding baffle (5), the water outlet pipe (35) is arranged horizontally inside the baffle (5), the baffle (5) is provided with water outlets (51) corresponding to the atomizing nozzles (36), and the water spraying part of the atomizing nozzle (36) is arranged in the water outlet (51).

3. A composite paint mist filter according to claim 2, characterized in that: An upper rack plate (52) and a lower rack plate (53) are respectively arranged on opposite surfaces of two adjacent baffles (5); the upper rack plate (52) and the lower rack plate (53) are staggered and meshed with a driving gear (54); the driving gear (54) is rotatably connected to the inner wall of the spray chamber (1); sliders (55) are arranged on the opposite side walls of the baffles (5); a slide groove (102) slidably matched with the slider (55) is opened on the inner wall of the filter chamber (2); the length direction of the slide groove (102) is perpendicular to the flow direction of the exhaust gas; and a rotating component (6) for driving the driving gear (53) to rotate is arranged on the outer wall of the spray chamber (1).

4. A composite paint mist filter according to claim 1, characterized in that: The bottom surface of the spray chamber (1) is connected to a sewage pipe (7), and a sewage valve (71) is provided on the sewage pipe (7). The bottom surface of the spray chamber (1) is inclined and the inclination direction extends toward the sewage pipe (7).

5. A composite paint mist filter according to claim 1, characterized in that: A baffle (8) is provided at the connection point between the spray chamber (1) and the filter chamber (2); a partition plate (9) is rotatably connected in the filter chamber (2); the partition plate (9) is tightly fitted with the baffle plate (8); the upper and lower surfaces of the partition plate (9) respectively form a filter area (10) and a replacement area (11) with the inner wall of the filter chamber (2); an opening (81) is provided on the baffle plate (8) which is connected with the filter area (10); and filter paper boxes (4) and A clamping assembly (12), the clamping assembly (12) being used to fix the filter paper box (4); a replacement port (202) is provided on the replacement area (11); a rotating shaft (13) is rotatably connected to the replacement port (202); a sealing door (131) is provided on the outer surface of the rotating shaft (13); the sealing door (131) blocks the replacement port (202); a second motor (14) is provided on the outer side wall of the filter chamber (2); an output shaft of the second motor (14) is coaxially and fixedly connected to the partition plate (9).

6. A composite paint mist filter according to claim 5, characterized in that: The clamping assembly (12) comprises a bidirectional screw rod (121), a guide rod (122) and two clamping plates (123); two opposite ends of the surface of the partition plate (9) are respectively provided with a driving groove (91) and a guide groove (92); the bidirectional screw rod (121) is rotatably connected in the driving groove (91); the guide rod (122) is arranged in the guide groove (92); one end of the two clamping plates (123) is respectively threadedly connected to the bidirectional screw rod (121) with the threads rotating in opposite directions. The two ends of the rod body are connected to the guide rod (122) in a sliding manner. The clamping plate (123) is a hollow plate and the clamping surface is in contact with the filter paper box (4). A cavity (15) is provided on the side wall of the filter chamber (2). A driven gear (124) is rotatably connected in the cavity (15). The driven gear (124) is coaxially fixedly connected to the bidirectional screw rod (121). A driving component (16) for driving the driven gear (124) to rotate is provided in the replacement area (11).

7. A composite paint mist filter according to claim 6, characterized in that: The driving assembly (16) comprises a driving gear (161) rotatably connected in the cavity (15); the driving gear (161) is coaxially fixedly connected to the rotating shaft (13); a first rack plate (162) is meshedly arranged on the driving gear (161); a second rack plate (163) is arranged at a toothless end of the first rack plate (162); a toothed end of the second rack plate (163) is meshed with the driven gear (124); the first rack plate (162) and the second rack plate (163) are both slidably connected to the inner side wall of the cavity (15); a first spring (164) is arranged on the inner top wall of the cavity (15); one end of the first spring (164) is connected to the inner side wall of the cavity (15), and the other end is connected to the second rack plate (163); when the first spring (164) is in a natural state, the toothed end of the second rack plate (163) is separated from the driven gear (124).

8. The composite paint mist filter according to claim 1, characterized in that: A cleaning assembly (17) is arranged in the replacement area (11), and the cleaning assembly (17) comprises a suction fan (171). The filter chamber (2) is located on an outer wall of the replacement area (11) and is provided with a suction port (203). The suction fan (171) is rotatably connected to the suction port (203). The air outlet end of the suction fan (171) is arranged toward the interior of the replacement area (11). A plurality of sleeves (172) are arranged on the inner wall of the replacement area (11), and each of the sleeves (172) is provided with a A second spring (173) is provided, one end of the second spring (173) is connected to the inner wall of the sleeve (172), and the other end is connected to a beating rod (174). When the second spring (173) is in a natural state, the beating rod (174) is located inside the sleeve (172). The beating rod (174) is an iron rod. The outer wall of the clamping plate (123) is provided with a magnetic block (175) corresponding to the beating rod (174) one by one, and the magnetic block (175) is used to adsorb the beating rod (174).

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