An exhaust gas filter device

Abstract

The application discloses a kind of exhaust filtering devices, including shell, filter cartridge, and outer cleaning brush;The shell is equipped with air inlet and air outlet, the open end of the filter cartridge is sealedly connected the air outlet of shell;The other end of filter cartridge is closed end, it is characterized by further including inner cleaning mechanism and blow washing mechanism;The inner cleaning mechanism is equipped with elastic member and inner cleaning brush, the inner cleaning brush and outer cleaning brush are all located in the side of filter cartridge away from air inlet, and all are located in the oblique upper side of the axis of filter cartridge, the inner cleaning brush is located below outer cleaning brush, and the bristle part of inner cleaning brush is elastically pressed in the inner wall of filter cartridge by elastic member;The blow washing mechanism is equipped with spray pipe, and the spray pipe is arranged in the inside of filter cartridge;The corner of shell below cleaning brush is equipped with collection area.The application is favorable for removing stubborn material adhered to the surface of filter screen, improves cleaning efficiency, also greatly reduces the water consumption of cleaning, and reduces the cleaning cost of filter cartridge.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of setting machine waste gas treatment, and particularly relates to a setting machine waste gas filtering device. BACKGROUND

[0002] The setting machine is mainly used for adjusting the width of textile after uniform pressing by a roller and then baking and heating to realize setting. In the setting process, the wet and hot exhaust gas discharged by the setting machine contains a large amount of dust and fabric scraps. If the exhaust gas is not treated, many harmful substances in the exhaust gas are easy to pollute the environment. Most of the traditional schemes adopt a filtering device with a filter cylinder arranged inside to filter the exhaust gas. However, since the wet and hot gas discharged by the setting machine contains a large amount of oil gas, the fabric scraps and other sundries mixed with the oil gas are bonded to the outer wall of the filter cylinder, which is easy to cause the filter cylinder hole to become small or even be blocked after a period of work, thereby seriously reducing the filtering effect. The filter cylinder needs to be cleaned, and the traditional filtering device does not have an automatic cleaning or online cleaning function, and can only be disassembled for cleaning. This way needs to stop production for cleaning the filter cylinder, thereby reducing the production efficiency.

[0003] Some filtering devices in the prior art also adopt an automatic cleaning mode to clean themselves. For example, a filtering device for a setting machine exhaust port is disclosed in Chinese Patent CN219559080U. The device can drive the filter cylinder to rotate through a ring gear when cleaning, and simultaneously brush and wash the outer surface of the filter cylinder through a sprayer and a brush, thereby realizing automatic cleaning of the outer surface of the filter cylinder, reducing disassembly and maintenance, and ensuring the continuity of production. However, in actual use, the cleaning effect of the filter cylinder is not ideal, the water consumption is large during cleaning, and the cleaning cost is high. In addition, since the dirt on the surface of the filter cylinder is a mixture of oil gas, it is also easy to flow to the inner wall of the filter cylinder, thereby causing serious pollution of the inner wall of the filter cylinder. The device only cleans the outer part of the filter cylinder.

[0004] Therefore, it is necessary to reform and upgrade the existing filtering device or design a new type of filtering device. SUMMARY

[0005] The technical problem to be solved by the application is to provide a setting machine waste gas filtering device to solve the problems of high cleaning cost and poor cleaning effect of the filter cylinder of the existing setting machine waste gas filtering device.

[0006] In order to achieve the above technical effects, the technical scheme adopted by the application is as follows:

[0007] The exhaust gas filtering device comprises a shell, a filtering cylinder rotatably installed in the shell, and an outer cleaning brush for cleaning the outer wall of the filtering cylinder; the shell is provided with an air inlet and an air outlet, one end of the filtering cylinder is an open end, and the other end is a closed end, the open end of the filtering cylinder is sealingly connected to the air outlet of the shell; the device is characterized in that it further comprises an inner cleaning mechanism and a blowing mechanism; the inner cleaning mechanism is provided with an elastic member and an inner cleaning brush connected to the elastic member, the inner cleaning brush and the outer cleaning brush are both brush strips parallel to the axial direction of the filtering cylinder, both are arranged on the side of the filtering cylinder away from the air inlet, and both are located above the axial center line of the filtering cylinder; the inner cleaning brush is located below the outer cleaning brush, the bristle part of the inner cleaning brush is elastically pressed against the inner wall of the filtering cylinder through the elastic member; the blowing mechanism is provided with a spray pipe, the spray pipe is arranged in the filtering cylinder, and the nozzle of the spray pipe faces the side of the filtering cylinder away from the air inlet; the corner below the cleaning brush of the shell is provided with a collection area, and the bottom plate of the shell is provided with a liquid discharge hole.

[0008] Compared with the prior art, the device has the following advantages: the inner and outer walls of the filtering cylinder are provided with inner and outer cleaning brushes respectively, the outer cleaning brush is arranged above the inner cleaning brush, the blowing mechanism is arranged in the filtering cylinder, and the corner below the inner cleaning brush of the shell is provided with a collection area, so that when the device works, the driving mechanism drives the filtering cylinder to rotate, the exhaust gas enters from the air inlet, is discharged from the air outlet through the filter screen, the filter screen filters the exhaust gas, the outer cleaning brush, the inner cleaning brush and the spray pipe are arranged in sequence from top to bottom, the bristles of the inner and outer cleaning brushes brush and sweep the inner and outer walls of the rotating filter screen, and the spray pipe blows and then sprays the filter screen, so that it is beneficial to remove stubborn substances adhered to the surface of the filter screen, the filtering cylinder is efficiently cleaned, the water consumption for cleaning is greatly reduced, the cleaning cost of the filtering cylinder is reduced, and the filtering effect of the device is improved.

[0009] The device is further improved as follows:

[0010] Further, the bottom plate of the shell is provided with a vertical partition plate parallel to the axial direction of the filtering cylinder, the top of the partition plate is higher than the lowest point of the filtering cylinder and lower than the height of the axial center line of the filtering cylinder, the partition plate is located directly below the side of the filtering cylinder away from the air inlet, and a gap is formed between the top surface of the partition plate and the outer wall of the filtering cylinder; the partition plate separates the two sides of the bottom plate of the lower end of the shell to form two isolated areas, one of which is the collection area.

[0011] Further, the inner cleaning mechanism is further provided with a fixing rod, and the elastic member is an arc-shaped metal elastic sheet; the fixing rod is located at the center of the filtering cylinder, one end of the fixing rod is rotatably and sealingly connected to the closed end of the filtering cylinder through a bearing, and the other end of the fixing rod is connected to the shell at the air outlet; one end of the elastic sheet is fixed to the fixing rod, and the other end is fixedly connected to the brush holder of the brush strip of the inner cleaning brush.

[0012] Further, the filter cartridge is provided with a cartridge body and a filter screen, the cartridge body comprises a sealing plate constituting a closed end and a support rib arranged annularly along the periphery of the sealing plate, and the filter screen is sleeved on the support rib, and the lower end of the brush holder of the inner cleaning brush further elastically contacts the support rib through an elastic sheet during rotation of the filter cartridge, and a wear-resistant pad is attached to the surface of the brush holder.

[0013] Further, a neck flange is mounted at the air outlet of the shell, the open end is in rotational sealing connection with the neck flange, and the fixing rod is connected with the shell through the neck flange.

[0014] Further, the neck portion of the neck flange is provided with a fixing hole, and the outer side end of the spray pipe is fixed in the fixing hole through an elbow joint.

[0015] Further, a support frame is detachably mounted on the inner wall of the neck portion of the neck flange, and one end of the fixing rod close to the open end is fixedly mounted on the support frame.

[0016] Further, the support frame is in a linear, cross or Y-shaped structure.

[0017] Further, a support rod is welded to one end of the fixing rod close to the sealing plate, and the other end of the support rod is connected with the spray pipe.

[0018] Further, an observation window is arranged on the top plate of the shell or the side wall plate away from the air inlet, for observing the internal condition.

[0019] The above description is only a summary of the technical solutions of the present application, in order to more clearly understand the technical means of the present application, and to be implemented according to the content of the specification, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below in combination with the drawings and examples. Obviously, the described examples are part of the examples of the present application, not all examples. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a perspective view of the exhaust gas filtering device of the present application Figure 1 ;

[0021] Figure 2 is a perspective view of the exhaust gas filtering device of the present application Figure 2 ;

[0022] Figure 3 is a structural view of the air inlet direction of the exhaust gas filtering device of the present application

[0023] Figure 4 is an enlarged view of part A Figure 1 ;

[0024] Figure 5 is an enlarged view of part A Figure 3B-B toward the sectional view of the B-B;

[0025] Figure 6 B-B toward the sectional view of the B-B; Figure 5 B-B toward the sectional view of the B-B;

[0026] The reference signs and the corresponding names in the figures are:

[0027] 1. housing, 11. air inlet, 12. air outlet,

[0028] 13. flange with neck, 14. partition, 15. collection area,

[0029] 151. airtight door, 16. adapter, 17. observation window,

[0030] 2. filter cartridge, 21. filter screen, 22. cartridge body,

[0031] 221. end plate, 222. support rib, 3. outer cleaning brush,

[0032] 4. inner cleaning mechanism, 41. inner cleaning brush, 411. brush wire,

[0033] 412. brush holder, 42. spring, 43. fixing rod,

[0034] 44. support frame, 45. bearing, 46. mounting plate,

[0035] 5. blow washing mechanism, 51. spray pipe, 6. driving mechanism. DETAILED DESCRIPTION

[0036] A waste gas filtering device is arranged between the exhaust outlet of a setting machine and the exhaust inlet of a heat exchange system of the setting machine, which is used for filtering the wet hot exhaust gas discharged from the setting machine and inputting the filtered exhaust gas into the heat exchange system of the setting machine. Figures 1-6As shown, the filter device comprises a shell 1, a filter cylinder 2, an outer cleaning brush 3, an inner cleaning mechanism 4 and a blowing and washing mechanism 5. The shell 1 is a hexahedral shell structure, a gas inlet 11 is formed on one side of the shell 1, a gas outlet 12 is formed on the front wall of the shell 1, a neck flange 13 is installed at the gas outlet 12 of the shell 1, and a driving mechanism 6 is fixedly installed on the rear wall of the shell 1. The filter cylinder 2 is a cylindrical structure, one end of which is an open end and the other end is a closed end. The filter cylinder 2 is horizontally installed inside the shell 1, the open end of the filter cylinder 2 is rotationally and sealingly connected with the neck flange 13, the closed end of the filter cylinder 2 is connected with the driving mechanism 6, and the filter cylinder 2 can rotate around its axis under the driving of the driving mechanism 6. The filter cylinder 2 is provided with a cylinder body 22 and a filter screen 21, the cylinder body 22 is provided with a sealing plate 221 forming the closed end and a support rib 222 arranged in a ring shape along the periphery of the sealing plate 221, the support rib 222 is processed by angle steel or / and channel steel, and the filter screen 21 is sleeved on the support rib 222. The inner cleaning mechanism is provided with an elastic member and an inner cleaning brush 41 connected with the elastic member, the inner cleaning brush 41 and the outer cleaning brush 3 are both brush strips parallel to the axis of the filter cylinder 2, which are composed of a brush holder 412 and brush wires 411 clamped below the brush holder 412. The inner cleaning brush 41 and the outer cleaning brush 3 are both located on the side of the filter cylinder 2 away from the gas inlet 11 and are both located above the axis of the filter cylinder 2, the inner cleaning brush 41 is located below the outer cleaning brush 3, and the brush wires 411 of the inner cleaning brush 41 and the outer cleaning brush 3 are correspondingly pressed on the inner wall and the outer wall of the filter cylinder 2, respectively, for brushing the inner wall and the outer wall of the filter cylinder 2 when the filter cylinder 2 rotates. The blowing and washing mechanism 5 is provided with a spray pipe 51, the spray pipe 51 is arranged inside the filter cylinder 2, and the nozzle of the spray pipe 51 faces the side of the filter cylinder 2 away from the gas inlet 11, for blowing and spraying cleaning on the outer wall of the filter cylinder 2 between the inner cleaning brush 41 and the partition plate 14. The shell 1 is provided with a collection area 15 at the corner below the inner cleaning brush 41, for collecting the dirt falling after brushing and spraying.

[0037] By arranging the inner and outer cleaning brushes on the inner and outer walls of the filter cylinder respectively, arranging the blowing and washing mechanism in the filter cylinder, and arranging the collection area at the corner below the inner cleaning brush of the shell, when the filter device works, the driving mechanism drives the filter cylinder to rotate, the exhaust gas enters from the gas inlet, is discharged from the filter screen, the filter screen filters the exhaust gas, the outer cleaning brush, the inner cleaning brush and the spray pipe are arranged in sequence from top to bottom, the brush wires of the inner and outer cleaning brushes brush the inner and outer walls of the rotating filter screen, and the spray pipe blows and sprays the filter screen by blowing first and then spraying, so that it is beneficial to remove the stubborn substances adhered to the surface of the filter screen, realizes the efficient cleaning of the filter cylinder, and greatly reduces the water consumption and the cleaning cost of the filter cylinder.

[0038] As preferred, the neck of the neck flange 13 is provided with a fixing hole, and a support frame 44 of a character 'I', cross or Y structure is detachably installed on the inner wall of the neck. The outer end of the spray pipe 51 is fixed in the fixing hole through an elbow joint. The inner cleaning mechanism 4 is further provided with a horizontal fixing rod 43, one end of which is fixedly installed on the support frame 44, and the other end thereof is rotatably and sealingly connected to the sealing plate 221 of the filter cartridge 2 through a bearing 45. A support rod is welded to one end of the fixing rod 43, and the other end of the support rod is connected to the inner end of the spray pipe 51 for supporting the inner end of the spray pipe 51. The elastic member of the inner cleaning mechanism 4 is an arc-shaped metal elastic sheet 42, one end of which is welded to the fixing rod 43. More preferably, when the inner cleaning brush 41 is arranged, the brush holder 412 of the inner cleaning brush 41 does not contact the inner wall of the filter screen 21, but the lower end of the brush holder 412 is allowed to contact the support rib 222 during the rotation of the filter cartridge 2, and a wear-resistant pad is attached to the side of the brush holder 412 close to the filter screen 21. When the fixing rod 43 is connected to the sealing plate 221 through the bearing 45, the fixing rod 43 is fixed to the inner ring of the bearing 45, the outer ring of the bearing 45 is welded to a mounting plate 46, and the mounting plate 46 is fixed to the sealing plate 221 by screws. In order to improve the firmness of the fixing rod 43, the end of the fixing rod 43 close to the sealing plate 221 is fixedly connected to the housing 1 through the sealing plate 221, and the sealing plate 221 is drivingly connected to the driving shaft of the driving mechanism 6 through a driving assembly (such as a belt driving assembly, a gear assembly or the like).

[0039] The inner cleaning brush is connected to the fixing rod through the elastic sheet, so that the brushing is powerful, and the lower end of the brush holder elastically contacts and presses the support rib during the rotation of the filter cartridge, so that vibration is generated when the brush holder passes the support rib, which effectively promotes the vibration and falling of the dirt adhered to the brush wire, and is beneficial to the self-cleaning of the brush wire. The support frame is arranged in a detachable structure, so that the maintenance of the inner cleaning mechanism is facilitated.

[0040] As preferred, the bottom plate of the shell 1 is provided with a vertical partition plate 14 parallel to the axial direction of the filter cartridge 2, the top of the partition plate 14 is higher than the lowest point of the filter cartridge 2 and lower than the height of the axial center line of the filter cartridge 2, the partition plate 14 is located directly below the side of the filter cartridge 2 away from the air inlet 11, and a gap is provided between the top surface of the partition plate 14 and the outer wall of the filter cartridge 2. The partition plate 14 separates the two sides of the lower end of the bottom plate of the shell 1 to form two isolated areas, one of which is the collection area 15, which is used to directly collect the dirt brushed off from the filter cartridge 2 or to collect the dirt brushed off from the filter cartridge 2 through the built-in collection bag or collection frame. The outer wall of the shell 1 at the collection area 15 is also provided with a collection port, which is provided with a sealed door 151, and the collection port is used to facilitate the cleaning of the dirt collected in the collection area 15. The partition plate 14 is provided with a filter hole for communicating the two isolated areas, and the bottom plate of the shell 1 is provided with a liquid discharge hole on the side other than the collection area 15, and the liquid discharge hole is provided with an adapter 16 for connecting with the outside to discharge the waste liquid after the spray cleaning in the shell 1. The top plate of the shell 1 or the side wall plate away from the air inlet 11 is provided with an observation window 17 for observing the working condition of the filter cartridge 2 and the condition of the collection area 15.

[0041] The present application is not limited to the above specific embodiments, and various modifications made by those skilled in the art without creative labor, based on the above concept, all fall within the protection scope of the present application.

Claims

1. A waste gas filtration device, comprising a housing, a filter cylinder rotatably installed within the housing, and an external cleaning brush for cleaning the outer wall of the filter cylinder; the housing is provided with an air inlet and an air outlet, one end of the filter cylinder is an open end, and the other end is a closed end, the open end of the filter cylinder being sealed to the air outlet of the housing; characterized in that, The inner cleaning mechanism is provided with an elastic member and an inner cleaning brush connected with the elastic member, the inner cleaning brush and the outer cleaning brush are both brush strips axially parallel to the filter cartridge, both are arranged on the side of the filter cartridge away from the air inlet, and both are located above the axial center line of the filter cartridge, the inner cleaning brush is located below the outer cleaning brush, and the bristle part of the inner cleaning brush is elastically pressed on the inner wall of the filter cartridge through the elastic member; the blowing mechanism is provided with a spray pipe, the spray pipe is arranged in the filter cartridge, and the nozzle of the spray pipe faces the side of the filter cartridge away from the air inlet; the corner of the shell below the cleaning brush is provided with a collection area; the inner cleaning mechanism is further provided with a fixing rod, the elastic member is an arc-shaped metal elastic sheet, one end of the fixing rod is rotatably and sealingly connected to the closed end of the filter cartridge, and the other end of the fixing rod is connected to the shell at the air outlet; one end of the elastic sheet is fixed on the fixing rod, and the other end of the elastic sheet is fixedly connected to the brush holder of the brush strip of the inner cleaning brush; the filter cartridge is provided with a cylinder and a filter screen, the cylinder comprises a sealing plate constituting a closed end and a support rib arranged in a ring shape along the periphery of the sealing plate, and the filter screen is sleeved on the support rib, and in the rotating process of the filter cartridge, the lower end of the brush holder of the inner cleaning brush further elastically touches the support rib through the elastic sheet, and a wear-resistant pad is attached to the surface of the brush holder.

2. An exhaust filter device according to claim 1, characterized in that A vertical partition plate axially parallel to the filter cartridge is arranged on the bottom plate of the shell, the top of the partition plate is higher than the lowest point of the filter cartridge and lower than the height of the axial center line of the filter cartridge, the partition plate is located directly below the side of the filter cartridge away from the air inlet, and a gap is arranged between the top surface of the partition plate and the outer wall of the filter cartridge; the partition plate separates the two sides of the bottom plate of the lower end of the shell to form two isolated areas, one of which is the collection area.

3. The exhaust filter of claim 1, wherein, A neck flange is arranged at the air outlet of the shell, the open end is rotatably and sealingly connected with the neck flange, and the fixing rod is connected with the shell through the neck flange.

4. An exhaust filter device according to claim 3, characterised in that The neck part of the neck flange is provided with a fixed hole, and the outer end of the spray pipe is fixed in the fixed hole through an elbow joint.

5. The exhaust filter of claim 3, wherein, A support frame is detachably arranged on the inner wall of the neck part of the neck flange, and one end of the fixing rod close to the open end is fixedly arranged on the support frame.

6. An exhaust filter device according to claim 5, characterised in that The support frame is in the shape of a character, a cross or Y.

7. The exhaust filter of claim 5, wherein, A support rod is welded to one end of the fixing rod close to the sealing plate, and the other end of the support rod is connected with the spray pipe.

8. The exhaust filter of claim 1, wherein, An observation window is arranged on the top plate of the shell or the side wall plate away from the air inlet.

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