VOC (volatile organic compound) dry-type filtering equipment

Abstract

The utility model is applicable to the technical field of dry type filters, and provides VOC (volatile organic compound) dry type filtering equipment which comprises a filtering box body with a hollow structure, a filtering assembly is arranged on the filtering box body and comprises a demisting silk screen and a plurality of filtering bags, and the demisting silk screen and the filtering bags are respectively and detachably connected with a push-pull piece. A limiting assembly connected with the filtering box body is arranged on each push-pull piece, each limiting assembly comprises a plurality of fixing seats arranged on the filtering box body, second convex blocks are arranged above the fixing seats, connecting rods and limiting pieces are rotationally connected to the fixing seats, pressing pieces are rotationally connected to the two sides of the connecting rods, and the pressing pieces are connected with the limiting pieces. The bottom of the pressing piece is provided with a third protruding block matched with the second protruding block, the pressing piece is rotationally connected with the limiting piece, and a rotating block is hinged to the limiting piece, so that the push-pull piece and the filtering box body can be locked and fixed, the limiting assembly is convenient to open, and the filtering assembly is convenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of dry filters, in particular to VOC dry filtering equipment. Background Art

[0002] In order to ensure the adsorption effect of the adsorption equipment, a filtering device is usually used to remove dust and sticky substances in the exhaust gas before the exhaust gas enters the adsorption equipment. The filtering equipment needs to be cleaned and maintained regularly, but the installation method of the existing filtering equipment is not convenient for disassembly and assembly.

[0003] In view of the above problems, technicians in this field have made improvements to the existing technology. For example, a dry filter box with easy filter element replacement, published as CN217449434U, includes an air inlet box, a dry filter box and an air outlet box which are fixedly connected in sequence, a plurality of partitions are fixedly and alternately arranged in the dry filter box, the partitions divide the internal space of the dry filter box into a plurality of dry filter chambers, a gas channel is formed between the top of the partition and the inner wall of the dry filter box, and adjacent dry filter chambers are connected through the gas channel; a dry filter element is detachably arranged in the dry filter chamber, the cross-sectional area of ​​the dry filter element is not less than the cross-sectional area of ​​the gas channel, a window is provided on the side wall of the dry filter chamber, and a sealing plate matching the window is detachably arranged at the window, which greatly shortens the time used for replacing the filter element, saves working hours and improves work efficiency.

[0004] However, the above device still has certain deficiencies, such as the detachable connection between the sealing plate and the window, and the instability between the sealing plate and the filter box when reinstalling.

[0005] As is known from the above, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0006] In view of the above-mentioned defects, the purpose of the present utility model is to provide a VOC dry filtering device, which can lock and fix the push-pull member and the filter box, and the limit assembly is easy to open, thereby shortening the time required for replacing the filter assembly and improving the replacement efficiency.

[0007] In order to achieve the above-mentioned purpose, the utility model provides a VOC dry filtering device, including a filter box with a hollow structure, a filter assembly is provided on the filter box, the filter assembly includes a defogger screen and a plurality of filter bags, the defogger screen and a push-pull member, the filter bags and the push-pull member are all detachably connected, the push-pull member is provided with a limit assembly connected to the filter box, the limit assembly includes a plurality of fixed seats arranged on the filter box, a second protrusion is provided above the fixed seat, a connecting rod and a limit member are rotatably connected to the fixed seat, pressing members are rotatably connected on both sides of the connecting rod, a third protrusion matching the second protrusion is provided at the bottom of the pressing member, the pressing member is rotatably connected to the limit member, and a rotating block is hinged on the limit member.

[0008] According to the VOC dry filtering device of the utility model, the filtering box body is provided with a plurality of first grooves, each of the first grooves is provided with a first protrusion, and the push-pull member is provided with a second groove matched with the first protrusion.

[0009] According to the VOC dry filtering device of the utility model, the filtering box body is provided with an air inlet and an air outlet.

[0010] According to the VOC dry-type filtering device of the utility model, the filtering box body is provided with an inspection door, and the inspection door is provided with a first handle.

[0011] According to the VOC dry-type filtering device of the utility model, a sewage drain groove is provided on the inner wall of the filtering box body, and a sewage drain valve is provided at the bottom of the sewage drain groove.

[0012] According to the VOC dry filtering device of the utility model, a second handle is provided on the push-pull member, and a third groove matched with the second handle is provided on the rotating block.

[0013] According to the VOC dry-type filtering device of the utility model, sealing gaskets are provided at the connection between the push-pull member and the filtering box body.

[0014] The purpose of the utility model is to provide a VOC dry filtration device, which has the following beneficial effects:

[0015] 1. The utility model can lock and fix the push-pull member and the filter box body, and the limit assembly switch mode is convenient, which is convenient for replacing the filter assembly and effectively improves work efficiency.

[0016] 2. The utility model is easy to install and maintain in the later stage.

[0017] 3. The utility model has strong applicability, and different installation directions of the equipment can be selected according to the actual situation on site.

[0018] 4. The utility model can effectively remove water vapor and particulate matter, reduce the corrosiveness of impurities to subsequent equipment, make the rear-end adsorption system operate stably, and extend the service life of the rear-end adsorption filler (activated carbon or zeolite) and the service life of the centrifugal fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the first schematic diagram of the assembly structure of the utility model;

[0020] Figure 2 It is a partial enlarged view of the assembly structure A of the utility model;

[0021] Figure 3 This is the second schematic diagram of the assembly structure of the utility model;

[0022] Figure 4 It is a partial enlarged view of the assembly structure B of the utility model;

[0023] Figure 5 It is a cross-sectional view of the assembly structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the filter box structure of the utility model;

[0025] Figure 7 This is a schematic diagram of the push-pull structure of the utility model;

[0026] In the figure, 1-filter box, 11-first groove, 111-first protrusion, 12-air inlet, 13-exhaust port, 14-inspection door, 141-first handle, 15-drain trough, 16-drain valve, 2-filter assembly, 21-push-pull member, 211-second groove, 212-second handle, 22-demist screen, 23-filter bag, 3-limiting assembly, 31-fixed seat, 311-second protrusion, 32-connecting rod, 33-limiting member, 34-pressing member, 341-third protrusion, 342-pressing button, 35-rotating block, 351-third groove. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] See also Figure 1 to Figure 7The utility model provides a VOC dry filtering device, comprising a filter box 1 with a hollow structure, the filter box 1 is provided with an air inlet 12 and an exhaust port 13, a plurality of first grooves 11 are provided on the side wall of the filter box 1, and a first protrusion 111 symmetrical along the center line of the filter box 1 is provided on the first groove 11, a filter assembly 2 is provided on the filter box 1, and the filter assembly 2 comprises a demisting screen 22 and a plurality of filter bags 23, the demisting screen 22 and the filter bags 23 are respectively detachably connected to a push-pull member 21 (there are various detachable connection methods, such as snap connection, bonding, etc., and the user can choose a suitable connection method according to actual conditions), a second groove 211 is provided on the push-pull member 21 to cooperate with the first protrusion 111, and the cooperation between the first protrusion 111 and the second groove 211 can better limit the push-pull member 21, and a sealing gasket is provided at the connection between the push-pull member 21 and the filter box 1.

[0029] The push-pull member 21 is provided with a limit assembly 3 connected to the filter box body 1, and the limit assembly 3 includes a plurality of fixed seats 31 arranged on the filter box body 1, and an arc-shaped second protrusion 311 is arranged above the fixed seat 31, and a connecting rod 32 and a limit member 33 are rotatably connected between the two fixed seats 31, and the connecting rod 32 and the limit member 33 are not directly connected. One end of the connecting rod 32 is rotatably connected to a pressing member 34, and the pressing member 34 is arranged on both sides of the connecting rod 32. The pressing member 34 is rotatably connected to the limit member 35, and the pressing member 34 is arranged on both sides of the limit member 33. The bottom of the pressing member 34 is provided with a third protrusion 341 that matches the second protrusion 311, and the pressing member 34 A pressing button 342 extends in the direction away from the limiting member 33, and the pressing button 342 connects the pressing members 34 on both sides together. A rotating block 35 is hinged at one end of the limiting member 33 away from the pressing member 34. A second handle 212 is provided on the push-pull member 21, and a third groove 351 adapted to the second handle 212 is provided on the rotating block 35. When the pressing member 34 is pressed, the second protrusion 311 cooperates with the third protrusion 341 to drive the connecting rod 32, the limiting member 33, and the rotating block 35 to rotate at the same time. At this time, the limiting member 33 and the rotating block 35 are raised, and the rotating block 35 is bent, so that the rotating block 35 and the limiting member 33 are on the same plane, which will not affect the push-pull member 21 from entering and exiting the filter box 1.

[0030] See also Figure 1 to Figure 7 Specifically, the utility model is a VOC dry filtering device. The filter assembly 2 and the push-pull member 21 of the utility model are both detachably connected to facilitate the replacement of the filter bag 23 and the demisting screen 22.

[0031] See also Figure 1 , Figure 6Specifically, in a VOC dry-type filtering device of the present invention, the filtering box body 1 is provided with an inspection door 14 , and the inspection door 14 is provided with a first handle 141 , so that the staff can open the inspection door 14 for regular maintenance.

[0032] See also Figure 1 , Figure 5 , Figure 6 Specifically, the utility model is a VOC dry filtering device, the bottom of the inner wall of the filter box 1 is provided with a drain groove 15, the bottom of the drain groove 15 is provided with a drain valve 16, the drain valve 16 extends out of the outer wall of the filter box 1, and the bottom of the filter box 1 is additionally provided with a drain valve 16 to facilitate the discharge of waste residues falling on the filter component 2 in the filter box 1, especially when flushing the inner wall of the filter box 1, it is convenient for the waste water in the filter box 1 to be discharged through the drain groove 15 and the drain valve 16.

[0033] See also Figure 1 , Figure 5 , Figure 6 Preferably, in a VOC dry filtration device of the utility model, the filter box 1 can be installed vertically or horizontally according to actual conditions, and technicians in this field can adjust the settings of the drain trough 15 and the drain valve 16 according to different installation angles of the filter box 1.

[0034] See also Figure 1 , Figure 3 , Figure 5 Preferably, a VOC dry filtration device of the utility model is a multi-stage filtration. The first-stage filtration uses a defogger screen 22 to filter water vapor. According to the dust removal requirements, a second-stage / third-stage / fourth-stage / fifth-stage filter bag 23 can be added (for example, the filter bag 23 can use filter cotton made of G4, F5, F7, and F9 materials), so that the exhaust gas can pass through the above-mentioned filter bags 23 in sequence, and the impurities in the exhaust gas (such as floating particles, etc.) are better filtered, so that the filtered gas meets the qualified standards. The staff in this technical field can choose filter cotton of different materials according to the situation.

[0035] During the implementation of the utility model: the staff connects the utility model to the equipment of the previous process, so that the exhaust gas enters the filter box 1 through the air inlet 12, and then passes through the demisting screen 22 and multi-stage different filter bags 23 in sequence, and is discharged through the exhaust port 13 after the filtration is completed. After using it for a period of time, the filter assembly 2 needs to be cleaned and replaced. At this time, the pressing button 342 needs to be pressed down, and the pressing member 34 drives the connecting rod 32 and the limiting member 33 to rotate at the same time. At this time, the limiting member 33 moves in the direction away from the second handle 212. When the limiting member 33 rises to the point where it does not interfere with the second handle 212, the rotating block 35 is moved so that the rotating block 35 does not hinder the pushing and pulling process of the pushing and pulling member 21, and the pushing and pulling member 21 is taken out from the filter box 1. At this time, the internal demisting screen 22 can be taken out and rinsed with a water gun. The filter element of bag 23 is replaced. After the filter assembly 1 is replaced, the cleaned defog screen 22 and multiple filter bags 23 are respectively installed on different push-pull members 21, and the push-pull member 21 is installed in the first groove 11, and the first protrusion 111 and the second groove 211 cooperate. At this time, the push-pull member 21 is installed on the filter box body 1, and the pressing button 342 is pressed down to bend the rotating block 35 so that the rotating block 35 and the limiting member 33 are at a right angle, and at the same time, the third groove 351 is fitted with the second handle 212 to prevent the push-pull member 21 from sliding out in the direction away from the filter box body 1. The limiting assembly 3 can better limit the push-pull member 21 to prevent the push-pull member 21 from not being able to completely fit the outer wall of the filter box body 1 due to various reasons such as gravity, so that a gap is left between the two. At this point, the filter assembly 2 is replaced.

[0036] The utility model provides a VOC dry filtering device, which has the following beneficial effects:

[0037] 1. The utility model can lock and fix the push-pull member and the filter box body, and the limit assembly switch mode is convenient, which is convenient for replacing the filter assembly and effectively improves work efficiency.

[0038] 2. The utility model is easy to install and maintain in the later stage.

[0039] 3. The utility model has strong applicability, and different installation directions of the equipment can be selected according to the actual situation on site.

[0040] 4. The utility model can effectively remove water vapor and particulate matter, reduce the corrosiveness of impurities to subsequent equipment, make the rear-end adsorption system operate stably, and extend the service life of the rear-end adsorption filler (activated carbon or zeolite) and the service life of the centrifugal fan.

[0041] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A VOC dry filtration device, characterized in that: The filter box comprises a hollow structure, the filter box is provided with a filter assembly, the filter assembly comprises a defogger screen and a plurality of filter bags, the defogger screen and the push-pull member, the filter bags and the push-pull member are all detachably connected, the push-pull member is provided with a limit assembly connected with the filter box, the limit assembly comprises a plurality of fixed seats arranged on the filter box, a second protrusion is provided above the fixed seat, a connecting rod and a limit member are rotatably connected to the fixed seat, pressing members are rotatably connected on both sides of the connecting rod, a third protrusion matching the second protrusion is provided at the bottom of the pressing member, the pressing member is rotatably connected to the limit member, and a rotating block is hinged on the limit member.

2. A VOC dry filtration device according to claim 1, characterized in that: The filter box body is provided with a plurality of first grooves, each of which is provided with a first protrusion, and the push-pull member is provided with a second groove matched with the first protrusion.

3. A VOC dry filtration device according to claim 1, characterized in that: The filter box body is provided with an air inlet and an air outlet.

4. A VOC dry filtration device according to claim 1, characterized in that: The filter box body is provided with an inspection door, and the inspection door is provided with a first handle.

5. A VOC dry filtration device according to claim 1, characterized in that: A sewage drain groove is arranged on the inner wall of the filter box body, and a sewage drain valve is arranged at the bottom of the sewage drain groove.

6. A VOC dry filtration device according to claim 1, characterized in that: The push-pull member is provided with a second handle, and the rotating block is provided with a third groove matched with the second handle.

7. A VOC dry filtration device according to claim 1, characterized in that: Sealing pads are provided at the connection between the push-pull member and the filter box body.

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