Filtering device for needled felt type filter bag

Abstract

The utility model belongs to the technical field of needled felt type filter bags, and particularly relates to a filtering device for a needled felt type filter bag, which comprises a needled felt type filter bag body. A support frame is arranged on the side wall of the needled felt type filter bag body; a pair of sliding rails is fixedly connected to the side wall of the supporting frame. Gas can be preliminarily filtered through the filter screen sleeve, meanwhile, when the gas is discharged into the filter screen sleeve, certain impact force can be generated on the spiral impeller, so that the spiral impeller can be driven to rotate, and smoke particles attached to the inner side wall of the filter screen sleeve are swept away; by arranging the filter screen sleeve, a certain influence on the gas purification effect caused by blockage due to the fact that smoke dust particles are easily attached and accumulated on the inner side wall of the filter screen sleeve due to the fact that the needled felt type filter bag body is difficult to primarily filter gas during use can be reduced; furthermore, the primary filtering effect on the gas is achieved when the needled felt type filter bag body is used, and the occurrence of blockage of the needled felt type filter bag body is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of needle felt filter bags, in particular to a filtering device for needle felt filter bags. Background Art

[0002] Needle felt filter bag is a filter bag made of needle felt material, usually used in the field of industrial dust removal and air filtration. It has the characteristics of high strength, high filtration accuracy and high temperature resistance. Needle felt filter bag is widely used in the power, steel and chemical industries.

[0003] In the prior art, the needle felt filter bag is mainly composed of a filter bag and a supporting frame. During use, the gas is discharged into the filter bag, and the filter bag can be used to filter the smoke particles in the gas, thereby achieving a gas purification effect.

[0004] However, in the prior art, it is found that when using the needle felt filter bag, since the gas is directly discharged into the filter bag, it is difficult to perform preliminary filtration on the gas, resulting in smoke and dust particles adhering to the inner wall of the filter bag. Over time, clogging is likely to occur, thereby affecting the filtering effect of the filter bag. For this reason, the utility model provides a filtering device for the needle felt filter bag. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a filtering device for a needle felt filter bag described in the utility model comprises a needle felt filter bag body; a support frame is provided on the side wall of the needle felt filter bag body; a pair of slide rails are fixedly connected to the side wall of the support frame; the slide rails are symmetrically arranged on both sides of the support frame and have the same structure; an insert block is slidably connected to the inner side wall of the slide rail; the side wall of the insert block is fixedly connected to the same filter mesh sleeve; the inner side wall of the filter mesh sleeve is fixedly connected to a spiral impeller; a plurality of fixing frames are provided on the side wall of the spiral impeller; the fixing frames are evenly distributed on the side wall of the spiral impeller and have the same structure; a plurality of cleaning brushes are evenly fixedly connected to the side wall of the fixing frame; at this time, the filter mesh sleeve is provided, and the needle felt filter bag body plays a preliminary filtering role on the gas when in use, thereby reducing the occurrence of clogging of the needle felt filter bag body, and at the same time, the cleaning brush can reduce the clogging of the filter mesh sleeve during filtration, thereby improving the filtering effect of the filter mesh sleeve.

[0007] Preferably, a pair of brackets are fixedly connected to the side walls of the plug block; the brackets are symmetrically arranged on both sides of the plug block and have the same structure; an elastic plate is fixedly connected to the side walls of the brackets; a pull rope is fixedly connected to the side walls of the elastic plate; the pull rope passes through the bracket wall and is slidably connected thereto; a pair of slots are symmetrically provided on the side walls of the slide rail; at this time, the elastic plate is clamped into the side walls of the slots, thereby increasing the fixing effect of the plug block on the inner wall of the slide rail, thereby improving the firmness of the filter sleeve when in use.

[0008] Preferably, an elastic sheet is fixed to the side wall of the fixing frame; a plurality of elastic rods are fixed to the inner wall of the filter mesh sleeve; the elastic rods are evenly distributed on the inner wall of the filter mesh sleeve and have the same structure; a counterweight ball is fixed to the end of the elastic rod; the position of the counterweight ball corresponds to that of the elastic sheet; at this time, the vibration generated by the swing of the elastic sheet can clean the smoke particles attached to the side wall of the cleaning brush.

[0009] Preferably, a plurality of telescopic rods are fixedly connected to the side wall of the spiral impeller; the telescopic rods are evenly distributed on the side wall of the spiral impeller and have the same structure; a spring is sleeved on the outer side of the telescopic rod; the telescopic rod, spring and fixed frame are in a fixed relationship; at this time, the telescopic rod and spring are arranged to increase the full contact effect between the cleaning brush and the inner wall of the filter mesh sleeve, thereby improving the anti-clogging effect of the filter mesh sleeve.

[0010] Preferably, a pair of limit blocks are fixedly connected to the side walls of the slide rail; the limit blocks are symmetrically arranged on both sides of the slide rail and have the same structure; a plurality of protective pads are evenly fixedly connected to the side walls of the limit blocks; at this time, the limit blocks are provided to play a limiting role when the insert block is inserted into the inner wall of the slide rail, and at the same time, the protective pads can protect the limit blocks.

[0011] Preferably, a connecting rod is fixedly connected to the side wall of the cleaning brush; the connecting rod passes through the wall of the cleaning brush and is fixedly connected thereto; at this time, the connecting rod is provided, thereby achieving centralization of the cleaning brush during cleaning, thereby improving the cleaning effect.

[0012] Preferably, a plurality of rubber strips are evenly fixed to the side wall of the insert block; in this case, the rubber strips can play a role in pre-fixing the insert block when the elastic plate is clamped into the side wall of the slot.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The utility model discloses a filter device for a needle felt filter bag, which can reduce the difficulty of the needle felt filter bag body in performing preliminary filtering of the gas when in use, through the filter mesh sleeve and the cleaning brush, so that smoke particles are easily attached and accumulated on the inner wall of the filter mesh sleeve, causing blockage, thereby causing a certain impact on the gas purification effect. At this time, the filter mesh sleeve is provided, and then the needle felt filter bag body plays a preliminary filtering role on the gas when in use, reducing the occurrence of blockage of the needle felt filter bag body. At the same time, the cleaning brush can reduce the blockage of the filter mesh sleeve during filtration, thereby improving the filtering effect of the filter mesh sleeve.

[0015] 2. The utility model describes a filter device for a needle-punched felt filter bag, which can reduce the poor fixing effect of the plug-in block on the inner wall of the slide rail by means of the elastic plate. When the filter mesh sleeve is accidentally pulled, the plug-in block is easy to slide out from the inner wall of the slide rail. At this time, the elastic plate is clamped into the side wall of the card slot, thereby increasing the fixing effect of the plug-in block on the inner wall of the slide rail and improving the firmness of the filter mesh sleeve when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the filter screen sleeve in the utility model;

[0019] Figure 3 It is a structural schematic diagram of the elastic sheet in the utility model;

[0020] Figure 4 yes Figure 3 A partial enlarged view of the middle part;

[0021] Figure 5 It is a structural schematic diagram of the elastic plate in the utility model.

[0022] In the figure: 1. needle felt filter bag body; 11. support frame; 12. slide rail; 13. plug block; 14. filter mesh sleeve; 15. spiral impeller; 16. fixing frame; 17. cleaning brush; 2. bracket; 21. elastic plate; 22. pull rope; 23. slot; 3. elastic sheet; 31. elastic rod; 32. counterweight ball; 4. telescopic rod; 41. spring; 5. limit block; 51. protective pad; 6. connecting rod; 7. rubber strip. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1-5 As shown, a filtering device for a needle felt filter bag according to an embodiment of the utility model comprises a needle felt filter bag body 1; a support frame 11 is provided on the side wall of the needle felt filter bag body 1; a pair of slide rails 12 are fixedly connected to the side wall of the support frame 11; the slide rails 12 are symmetrically arranged on both sides of the support frame 11 and have the same structure; an insert block 13 is slidably connected to the inner side wall of the slide rail 12; the side wall of the insert block 13 is fixedly connected to the same filter mesh sleeve 14; a spiral impeller 15 is fixedly connected to the inner side wall of the filter mesh sleeve 14; a plurality of fixing frames 16 are provided on the side wall of the spiral impeller 15; The fixing frames 16 are evenly distributed on the side walls of the spiral impeller 15 and have the same structure; a plurality of cleaning brushes 17 are evenly fixed to the side walls of the fixing frames 16; when in use, the staff first holds the filter mesh sleeve 14, aligns the plug 13 with the slide rail 12, and then inserts the plug 13 into the inner wall of the slide rail 12. At this time, the gas is discharged into the filter mesh sleeve 14, and the filter mesh sleeve 14 can be used to perform preliminary filtration on the gas, intercepting most of the smoke particles contained in the gas, and then entering the needle felt filter bag body 1 for another filtration. At the same time, when the gas is discharged into the filter mesh sleeve 14, the gas can be filtered by the filter mesh sleeve 14. When the filter mesh sleeve 14 is in the filter mesh sleeve 14, a certain impact force will be generated on the spiral impeller 15, thereby driving the spiral impeller 15 to rotate. With the rotation of the spiral impeller 15, the inner wall of the filter mesh sleeve 14 can be cleaned through the contact between the cleaning brush 17 and the inner wall of the filter mesh sleeve 14, and the smoke and dust particles attached to the inner wall of the filter mesh sleeve 14 can be swept away to prevent them from accumulating on the inner wall of the filter mesh sleeve 14. When the filter mesh sleeve 14 is used, the filter mesh sleeve 14 can be disassembled, the plug block 13 is pulled out of the inner wall of the slide rail 12, and the smoke and dust particles collected in the filter mesh sleeve 14 can be cleaned. During the treatment, the needle-punched felt filter bag body 1 can be made difficult to perform preliminary filtering of the gas when in use, which causes smoke particles to easily adhere to and accumulate on the inner wall of the filter mesh sleeve 14, causing blockage, thereby causing a certain impact on the gas purification effect. At this time, the filter mesh sleeve 14 is set, and then the needle-punched felt filter bag body 1 plays a preliminary filtering role for the gas when in use, reducing the occurrence of blockage of the needle-punched felt filter bag body 1. At the same time, the cleaning brush 17 can reduce the blockage of the filter mesh sleeve 14 during filtration, thereby improving the filtration effect of the filter mesh sleeve 14.

[0025] like Figure 5As shown, a pair of brackets 2 are fixedly connected to the side walls of the plug block 13; the brackets 2 are symmetrically arranged on both sides of the plug block 13 and have the same structure; an elastic plate 21 is fixedly connected to the side walls of the bracket 2; a pull rope 22 is fixedly connected to the side walls of the elastic plate 21; the pull rope 22 passes through the wall of the bracket 2 and is slidably connected thereto; a pair of slots 23 are symmetrically opened on the side walls of the slide rail 12; when in use, during the process of inserting the plug block 13 into the inner wall of the slide rail 12, the elastic plate 21 will be squeezed by the wall of the slide rail 12 and deformed. When the plug block 13 is fully inserted into the inner wall of the slide rail 12, the elastic plate 21 will correspond to the position of the slot 23. At this time, the elastic plate Under the elastic action of 21, it will automatically recover and get stuck in the side wall of the slot 23 to fix the plug 13. When the plug 13 needs to be pulled out, first hold the pull rope 22 and pull it to pull the elastic plate 21 out of the side wall of the slot 23, so that the plug 13 can be disassembled. In this process, the fixing effect of the plug 13 on the inner wall of the slide rail 12 can be reduced. When the filter net cover 14 is accidentally pulled, the plug 13 is easy to slide out from the inner wall of the slide rail 12. At this time, the elastic plate 21 is stuck in the side wall of the slot 23, thereby increasing the fixing effect of the plug 13 on the inner wall of the slide rail 12 and improving the firmness of the filter net cover 14 when in use.

[0026] like Figure 3 , 4 As shown, the side wall of the fixing frame 16 is fixedly connected to an elastic sheet 3; the inner wall of the filter mesh sleeve 14 is fixedly connected to a plurality of elastic rods 31; the elastic rods 31 are evenly distributed on the inner wall of the filter mesh sleeve 14 and have the same structure; the ends of the elastic rods 31 are fixedly connected to a weight ball 32; the weight ball 32 corresponds to the position of the elastic sheet 3; when in use, when the fixing frame 16 is rotating, the elastic sheet 3 can contact the weight ball 32 with the rotation of the fixing frame 16, and the elastic sheet 3 will hit the wall of the weight ball 32 at this time, and the impact force generated by the collision can make the elastic rod 31 contact the elastic sheet 32 The elastic sheet 3 produces a certain deformation. When the elastic sheet 3 is offset from the counterweight ball 32, the elastic sheet 3 will swing and produce a certain vibration under the elastic action of the elastic sheet 3. At the same time, the vibration can shake off the smoke and dust particles attached to the side wall of the cleaning brush 17. In this process, the cleaning brush 17 can be reduced after long-term use, resulting in a large number of smoke and dust particles attached to the side wall of the cleaning brush 17, thereby causing a certain impact on the use effect of the cleaning brush 17. At this time, the vibration generated by the swing of the elastic sheet 3 can clean the smoke and dust particles attached to the side wall of the cleaning brush 17.

[0027] like Figure 4As shown, the side wall of the spiral impeller 15 is fixedly connected with a plurality of telescopic rods 4; the telescopic rods 4 are evenly distributed on the side wall of the spiral impeller 15 and have the same structure; a spring 41 is sleeved on the outer side of the telescopic rod 4; the telescopic rod 4, the spring 41 and the fixing frame 16 are in a fixed relationship; when in use, when the cleaning brush 17 is cleaning, a certain reaction force can be applied to the fixing frame 16 under the elastic action of the spring 41, and the cleaning brush 17 is pushed toward the inner wall of the filter mesh sleeve 14, so that the cleaning brush 17 can be fully contacted with the inner wall of the filter mesh sleeve 14, and the telescopic rod 4 will perform telescopic movement to maintain the stable movement of the fixing frame 16. In this process, the insufficient contact between the cleaning brush 17 and the filter mesh sleeve 14 can be reduced, resulting in a poor cleaning effect on the filter mesh sleeve 14, thereby affecting the cleaning effect on the inner wall of the filter mesh sleeve 14. At this time, the telescopic rod 4 and the spring 41 are set, and the full contact between the cleaning brush 17 and the inner wall of the filter mesh sleeve 14 is increased, thereby improving the anti-clogging effect of the filter mesh sleeve 14.

[0028] like Figure 5 As shown, a pair of limit blocks 5 are fixedly connected to the side walls of the slide rail 12; the limit blocks 5 are symmetrically arranged on both sides of the slide rail 12 and have the same structure; a plurality of protective pads 51 are evenly fixedly connected to the side walls of the limit blocks 5; when in use, when the plug block 13 is inserted into the inner wall of the slide rail 12, the plug block 13 will contact the limit blocks 5 on both sides of the slide rail 12, and the plug block 13 will slide toward the middle of the limit blocks 5 on both sides. At the same time, the protective pads 51 can block the direct contact between the limit block 5 and the plug block 13, thereby reducing the friction between the limit block 5 and the plug block 13 and reducing the wear of the limit block 5 caused by the friction between the limit block 5 and the plug block 13. In this process, it can reduce the difficulty in limiting the two when the plug block 13 is inserted into the inner wall of the slide rail 12, making it difficult to insert the plug block 13 into the inner wall of the slide rail 12. At this time, the limit block 5 is set, and then the limit block 13 is inserted into the inner wall of the slide rail 12. The protective pads 51 can protect the limit block 5.

[0029] like Figure 4 As shown, the side wall of the cleaning brush 17 is fixedly connected with a connecting rod 6; the connecting rod 6 passes through the wall of the cleaning brush 17 and is fixedly connected thereto; when in use, multiple cleaning brushes 17 can be fixedly connected by the connecting rod 6 so that they are concentrated together when cleaning. In this process, the cleaning brush 17 can be reduced to be relatively scattered during cleaning, resulting in poor cleaning effect on the filter mesh sleeve 14, thereby affecting the use effect of the cleaning brush 17. At this time, the connecting rod 6 is set to concentrate the cleaning brush 17 during cleaning, thereby improving the cleaning effect.

[0030] like Figure 5As shown, the side wall of the plug block 13 is evenly fixed with a plurality of rubber strips 7; when in use, after the plug block 13 is inserted into the inner wall of the slide rail 12, the rubber strip 7 will contact the slide rail 12 and generate a certain friction force to pre-fix the plug block 13. In this process, it can reduce the difficulty of pre-fixing the plug block 13 after the plug block 13 is inserted into the inner wall of the slide rail 12, causing the plug block 13 to slide out easily when the elastic plate 21 is opened into the side wall of the slot 23. At this time, the rubber strip 7 is provided to pre-fix the plug block 13 when the elastic plate 21 is inserted into the side wall of the slot 23.

[0031] During operation, the staff first holds the filter mesh sleeve 14, aligns the plug 13 with the slide rail 12, and then inserts the plug 13 into the inner wall of the slide rail 12. At this time, the gas is discharged into the filter mesh sleeve 14, and the filter mesh sleeve 14 can be used to perform preliminary filtration on the gas, intercepting most of the smoke and dust particles contained in the gas, and then enters the needle-punched felt filter bag body 1 for another filtration. At the same time, when the gas is discharged into the filter mesh sleeve 14, a certain impact force is generated on the spiral impeller 15, thereby driving the spiral impeller 15 to rotate. With the rotation of the spiral impeller 15, the inner wall of the filter mesh sleeve 14 can be cleaned through the contact between the cleaning brush 17 and the inner wall of the filter mesh sleeve 14, and the smoke and dust particles attached to the inner wall of the filter mesh sleeve 14 are swept away. The filter mesh sleeve 14 is then removed and the filter mesh sleeve 14 is removed and the plug block 13 is pulled out of the inner wall of the slide rail 12 to process the smoke particles collected in the filter mesh sleeve 14. When in use, during the process of inserting the plug block 13 into the inner wall of the slide rail 12, the elastic plate 21 is squeezed and deformed by the wall of the slide rail 12. When the plug block 13 is fully inserted into the inner wall of the slide rail 12, the elastic plate 21 corresponds to the position of the card slot 23. At this time, the elastic plate 21 will automatically recover and snap into the side wall of the card slot 23 under the elastic action of the elastic plate 21 to fix the plug block 13. When the plug block 13 needs to be pulled out, the pull rope 22 is first held and pulled to pull the elastic plate 21 out of the side wall of the card slot 23. , so that the plug block 13 can be disassembled. When in use, when the fixing frame 16 is rotating, the elastic sheet 3 can contact the counterweight ball 32 with the rotation of the fixing frame 16. At this time, the elastic sheet 3 will hit the wall of the counterweight ball 32. The impact force generated by the collision can cause the elastic rod 31 and the elastic sheet 3 to produce a certain deformation. When the elastic sheet 3 and the counterweight ball 32 are staggered, the elastic action of the elastic sheet 3 will produce swing and a certain vibration. At the same time, the vibration can shake off the smoke and dust particles attached to the side wall of the cleaning brush 17. When in use, when the cleaning brush 17 is cleaning, a certain reaction force can be applied to the fixing frame 16 under the elastic action of the spring 41, and the cleaning brush 17 is pushed toward the inner wall of the filter mesh sleeve 14, so that the cleaning brush 17 can The plug block 13 is fully in contact with the inner wall of the filter mesh sleeve 14, and the telescopic rod 4 will perform telescopic movement to maintain the stable movement of the fixing frame 16. When in use, by inserting the plug block 13 into the inner wall of the slide rail 12, the plug block 13 will contact the limit blocks 5 on both sides of the slide rail 12. At this time, the plug block 13 will slide to the middle of the limit blocks 5 on both sides. At the same time, the protective pad 51 can block the direct contact between the limit block 5 and the plug block 13, reducing the friction between the limit block 5 and the plug block 13 and the wear of the limit block 5. When in use, multiple cleaning brushes 17 can be fixedly connected by the connecting rod 6 so that they are concentrated together when cleaning. When in use, when the plug block 13 is inserted into the inner wall of the slide rail 12, the rubber strip 7 will contact the slide rail 12 and generate a certain friction force.Pre-fix the plug block 13.

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A filtering device for a needle felt filter bag, comprising a needle felt filter bag body (1); a support frame (11) is provided on the side wall of the needle felt filter bag body (1); and the characteristics are: A pair of slide rails (12) are fixedly connected to the side walls of the support frame (11); the slide rails (12) are symmetrically arranged on both sides of the support frame (11) and have the same structure; an insert block (13) is slidably connected to the inner side walls of the slide rails (12); the side walls of the insert block (13) are fixedly connected to the same filter mesh sleeve (14); the inner side wall of the filter mesh sleeve (14) is fixedly connected to a spiral impeller (15); the side wall of the spiral impeller (15) is provided with a plurality of fixing frames (16); the fixing frames (16) are evenly distributed on the side walls of the spiral impeller (15) and have the same structure; and the side walls of the fixing frames (16) are evenly fixedly connected to a plurality of cleaning brushes (17).

2. A filter device for a needle felt filter bag according to claim 1, characterized in that: A pair of brackets (2) are fixedly connected to the side wall of the plug block (13); the brackets (2) are symmetrically arranged on both sides of the plug block (13) and have the same structure; an elastic plate (21) is fixedly connected to the side wall of the bracket (2); a pull rope (22) is fixedly connected to the side wall of the elastic plate (21); the pull rope (22) passes through the wall of the bracket (2) and is slidably connected thereto; and a pair of slots (23) are symmetrically provided on the side wall of the slide rail (12).

3. A filter device for a needle felt filter bag according to claim 1, characterized in that: An elastic sheet (3) is fixedly connected to the side wall of the fixing frame (16); a plurality of elastic rods (31) are fixedly connected to the inner wall of the filter mesh sleeve (14); the elastic rods (31) are evenly distributed on the inner wall of the filter mesh sleeve (14) and have the same structure; a weight ball (32) is fixedly connected to the end of the elastic rod (31); the weight ball (32) corresponds to the position of the elastic sheet (3).

4. A filter device for a needle felt filter bag according to claim 1, characterized in that: A plurality of telescopic rods (4) are fixedly connected to the side wall of the spiral impeller (15); the telescopic rods (4) are evenly distributed on the side wall of the spiral impeller (15) and have the same structure; a spring (41) is sleeved on the outer side of the telescopic rod (4); the telescopic rod (4), the spring (41) and the fixing frame (16) are in a fixed connection relationship.

5. The filter device for a needle felt filter bag according to claim 1, characterized in that: A pair of limit blocks (5) are fixedly connected to the side walls of the slide rail (12); the limit blocks (5) are symmetrically arranged on both sides of the slide rail (12) and have the same structure; and a plurality of protective pads (51) are evenly fixedly connected to the side walls of the limit blocks (5).

6. A filter device for a needle felt filter bag according to claim 1, characterized in that: A connecting rod (6) is fixedly connected to the side wall of the cleaning brush (17); the connecting rod (6) penetrates through the wall of the cleaning brush (17) and is fixedly connected thereto.

7. A filter device for a needle felt filter bag according to claim 1, characterized in that: A plurality of rubber strips (7) are evenly fixed to the side wall of the insert block (13).

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