Filtering device for needled felt type filter bag

Abstract

The utility model discloses a filtering device for a needled felt type filter bag, belongs to the technical field of industrial dust removal, and aims to solve the problem that in the prior art, the needled felt type filter bag is directly fixed at the outer end of a support frame, so that the needled felt type filter bag is inconvenient to disassemble and assemble from the outer end of the support frame when being damaged. Comprising a mounting ring, the lower end of the mounting ring is connected with a needled felt type filter bag body, the lower end of the inner side of the mounting ring is fixedly connected with a fixing ring, the lower side of the fixing ring is fixedly connected with a supporting frame, the inner side of the mounting ring is connected with a primary filtering mechanism, and the outer end of the mounting ring is connected with a secondary filtering mechanism; and the secondary filtering mechanism comprises a pressing ring connected to the lower end of the mounting ring, fixing frames are fixedly connected to the four corners of the outer side of the mounting ring, second springs are fixedly connected to the ends, away from the mounting ring, of the inner sides of the fixing frames, and limiting rods are fixedly connected to the inner sides of the fixing frames.

Description

TECHNICAL FIELD

[0001] The utility model belongs to industrial dust removal technical field, concretely relates to a filter device for needled felt filter bag. BACKGROUND

[0002] Needled felt filter bag is a kind of filter bag made of needled felt material, usually used in industrial dust removal and air filtration field, it has the characteristics of high strength, high filtration precision, high temperature resistance, and needled felt filter bag is widely used in electric power, steel, chemical industry. In the prior art, needled felt filter bag is mainly composed of filter bag and support frame, in the use process, gas is discharged into the filter bag, at this time, the filter bag can filter smoke dust particles in the gas, so as to realize the purification effect of gas.

[0003] Such as patent CN222239278U discloses a kind of filter device for needled felt filter bag, by the filter screen cover and cleaning brush being set, can reduce needled felt filter bag body when using difficult to carry out preliminary filtration to gas, cause smoke dust particles to easily adhere and accumulate on the inner wall of filter screen cover, cause blockage, thereby causing certain influence to the purification effect of gas, at this time, by the filter screen cover being set, and then play the preliminary filtration effect of gas when using needled felt filter bag body, reduce the blocking condition of needled felt filter bag body to occur, simultaneously by cleaning brush can reduce the blockage of filter screen cover when filtering, improve the filtering effect of filter screen cover.

[0004] But the needled felt filter bag is directly fixed to the outer end of support frame, so as not to be convenient for disassembling from the outer end of support frame when needled felt filter bag is damaged. UTILITY MODEL CONTENTS

[0005] (1) technical problem to be solved

[0006] In view of the deficiencies of prior art, the purpose of the utility model is to provide a kind of filter device for needled felt filter bag, to solve the problem that needled felt filter bag is directly fixed to the outer end of support frame in prior art, so as not to be convenient for disassembling from the outer end of support frame when needled felt filter bag is damaged.

[0007] (2) technical scheme

[0008] In order to solve the above technical problems, the utility model provides a kind of filtering device for needle felt filter bag, including mounting ring, the lower end of the mounting ring is connected with needle felt filter bag body, the inside lower end of the mounting ring is fixedly connected with fixed ring, the lower side of the fixed ring is fixedly connected with support frame, the inside of the mounting ring is connected with primary filter mechanism, the outer end of the mounting ring is connected with secondary filter mechanism, and secondary filter mechanism includes compression ring connected to the lower end of mounting ring, the four corners of the outside of the mounting ring are fixedly connected with fixed frame, the one end of the inside of the fixed frame away from the mounting ring is fixedly connected with second spring, the inside of the fixed frame is fixedly connected with limit rod, the other end of the second spring is fixedly connected with moving plate, the lower side of the moving plate is fixedly connected with pressing block.

[0009] Further, the primary filter mechanism includes a connecting ring connected to the inside of the mounting ring, the inside of the connecting ring is fixedly connected with a fixed rod, the inside of the fixed rod is fixedly connected with a bearing at the middle position, the inside of the bearing is fixedly connected with a round rod, the outside of the round rod is fixedly connected with a fan blade at the upper end, the lower end of the round rod is fixedly connected with an arc plate, the left and right ends of the upper side of the connecting ring are symmetrically fixedly connected with a connecting frame, the one end of the inside of the connecting frame close to the center of the connecting ring is fixedly connected with a first spring, the other end of the first spring is fixedly connected with a sliding plate, the inside of the sliding plate is fixedly connected with a plug rod at the middle position, the lower side of the connecting ring is fixedly connected with a primary filter screen.

[0010] Further, the inside of the moving plate is provided with a round hole at the middle position of the upper end, the outside of the limit rod is slidably connected with the inside of the round hole, and the upper end of the moving plate is slidably connected with the inside of the fixed frame.

[0011] Further, the upper end of the needle felt filter bag body is abutted with the side adjacent to the mounting ring and the compression ring of the fixed frame, and the lower side of the compression ring is abutted with the upper side of the pressing block.

[0012] Further, the outer end of the support frame is sleeved with the inside of the needle felt filter bag body.

[0013] Further, the primary filter mechanism includes a sliding hole formed at the one end of the inside of the connecting frame away from the mounting ring, the outside of the plug rod is slidably connected with the inside of the sliding hole, and the outside of the sliding plate is slidably connected with the inside of the connecting frame.

[0014] Further, the left and right ends of the inside of the connecting ring are provided with plug holes, the one end of the outside of the plug rod away from the center of the connecting ring is inserted into the inside of the plug hole, and the upper side of the fixed ring is abutted with the lower side of the connecting ring.

[0015] Further, the outside of the arc plate is slidably connected with the inside of the primary filter screen.

[0016] (3)Beneficial effects

[0017] Compared with the prior art, the beneficial effects of the utility model lie in:

[0018] The utility model discloses a new needle felt filter bag body installation structure, which comprises a needle felt filter bag body, a fixing frame, a connecting ring, a pressure ring, a mounting ring and a moving plate, wherein the needle felt filter bag body is arranged in the fixing frame, the connecting ring is arranged on the upper end of the fixing frame, the pressure ring is arranged on the lower end of the connecting ring, the mounting ring is arranged on the lower end of the pressure ring, and the moving plate is arranged on the upper end of the pressure ring.

[0019] The utility model discloses an industrial gas enters the inside of connecting ring and is filtered with primary filter screen simultaneously, will blow the fan leaf and make it rotate, drive the rotation of round bar and make the arc plate rotate along the inside of primary filter screen, scrape the soot particle of primary filter screen inside and move constantly, avoid soot particle and be located in the primary filter screen inside and be accumulated and cause the blockage of the filter effect of primary filter screen. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiment of the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1 It is the main body structure schematic diagram of the utility model;

[0022] Figure 2 It is the structure schematic diagram of the connecting ring of the utility model;

[0023] Figure 3 It is the inside structure schematic diagram of the needle felt filter bag body of the utility model;

[0024] Figure 4 It is the inside structure schematic diagram of the fixing frame of the utility model.

[0025] The marks in the drawings are: 1, mounting ring; 2, needle felt filter bag body; 301, connecting ring; 302, fixing rod; 303, bearing; 304, round rod; 305, fan blade; 306, arc plate; 307, connecting frame; 308, first spring; 309, sliding plate; 310, inserting rod; 311, primary filter screen; 401, pressing ring; 402, fixed frame; 403, second spring; 404, limiting rod; 405, moving plate; 406, pressing block; 5, fixed ring; 6, support frame. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] The specific embodiment is a filter device for needle felt filter bag, and a structure diagram is as shown in Figure 1 and Figure 2As shown, it comprises a mounting ring 1, the lower end of the mounting ring 1 is connected with a needle felt filter bag body 2, the inner lower end of the mounting ring 1 is fixedly connected with a fixed ring 5, the lower side of the fixed ring 5 is fixedly connected with a support frame 6, the inner side of the mounting ring 1 is connected with a primary filter mechanism, the primary filter mechanism comprises a connecting ring 301 connected to the inner side of the mounting ring 1, the inner side of the connecting ring 301 is fixedly connected with a fixed rod 302, the inner side of the fixed rod 302 is fixedly connected with a bearing 303, the inner side of the bearing 303 is fixedly connected with a round rod 304, the outer side of the upper end of the round rod 304 is fixedly connected with a fan blade 305, the lower end of the round rod 304 is fixedly connected with an arc plate 306, the left and right ends of the upper side of the connecting ring 301 are symmetrically fixedly connected with a connecting frame 307, one end of the inner side of the connecting frame 307 close to the center of the connecting ring 301 is fixedly connected with a first spring 308, the other end of the first spring 308 is fixedly connected with a sliding plate 309, the inner side of the sliding plate 309 is fixedly connected with a plug rod 310, the lower side of the connecting ring 301 is fixedly connected with a primary filter screen 311, the primary filter mechanism comprises that one end of the inner side of the connecting frame 307 away from the mounting ring 1 is provided with a sliding hole, the outer side of the plug rod 310 is slidably connected with the inner side of the sliding hole, the outer side of the sliding plate 309 is slidably connected with the inner side of the connecting frame 307, the left and right ends of the inner side of the connecting ring 301 are provided with plug holes, one end of the outer side of the plug rod 310 away from the center of the connecting ring 301 is inserted into the inner side of the plug hole, and the upper side of the fixed ring 5 abuts against the lower side of the connecting ring 301. When the connecting ring 301 is slid to the upper side of the fixed ring 5 inside the mounting ring 1, the sliding plate 309 is moved by the rebound of the first spring 308, so that the plug rod 310 moves into the plug hole inside the mounting ring 1, and then the connecting ring 301 is fixed to the inside of the mounting ring 1, and the primary filter screen 311 is fixed to the lower end of the mounting ring 1, so that the industrial gas entering the mounting ring 1 is primarily filtered, and the smoke particles are filtered.

[0028] Wherein, the outer side of the arc plate 306 is slidably connected with the inner side of the primary filter screen 311, while the industrial gas entering the inner side of the connecting ring 301 is filtered by the primary filter screen 311, the fan blade 305 is blown to rotate, the round rod 304 is driven to rotate, and the arc plate 306 is driven to rotate along the inner side of the primary filter screen 311, so that the smoke particles on the inner side of the primary filter screen 311 are scraped and continuously moved to the inner side of the primary filter screen 311, avoiding the accumulation of smoke particles on the inner side of the primary filter screen 311 to cause blockage and affect the filtering effect of the primary filter screen 311.

[0029] Cooperation Figure 2 And Figure 4The outer end of the mounting ring 1 is connected with a secondary filtering mechanism, and the secondary filtering mechanism comprises a pressing ring 401 connected to the lower end of the mounting ring 1, a fixed frame 402 fixedly connected to the four corners of the outer side of the mounting ring 1, a second spring 403 fixedly connected to the inner side of the fixed frame 402 away from the mounting ring 1, a limiting rod 404 fixedly connected to the inner side of the fixed frame 402, a moving plate 405 fixedly connected to the other end of the second spring 403, a circular hole formed in the middle of the upper end of the inner side of the moving plate 405, the outer side of the limiting rod 404 in sliding connection with the inner side of the circular hole, the upper end of the outer side of the moving plate 405 in sliding connection with the inner side of the fixed frame 402, and a pressing block 406 fixedly connected to the lower side of the moving plate 405. The upper end of the outer side of the needle felt filter bag body 2 is sleeved with the mounting ring, the outer end of the support frame 6 is sleeved with the inner side of the needle felt filter bag body 2. After the moving plate 405 is pulled away from the needle felt filter bag body 2, the pressing block 406 is moved to be no longer below the pressing ring 401, the pressing ring 401 can be removed from below the mounting ring 1, and the upper end of the needle felt filter bag body 2 is no longer clamped and fixed between the pressing ring 401 and the mounting ring 1. After the needle felt filter bag body 2 is sleeved with the outer end of the needle felt filter bag body 2 and the upper end of the needle felt filter bag body 2 is positioned below the mounting ring 1, the pressing ring 401 is moved to the lower end of the mounting ring 1, and the moving plate 405 is loosened, the second spring 403 rebounds to push the moving plate 405 to move the pressing block 406 below the pressing ring 401 again, so that the pressing ring 401 is pressed again below the pressing ring 401, and the upper end of the needle felt filter bag body 2 is pressed between the mounting ring 1 and the pressing ring 401, the installation of the new needle felt filter bag body 2 is completed, and the disassembly and replacement of the needle felt filter bag body 2 are very convenient and fast, so that the needle felt filter bag body 2 can be quickly replaced when damaged.

[0030] Working principle: when the needle felt filter bag body 2 is filtering, industrial gas is introduced into the mounting ring 1, enters the support frame 6 through the mounting ring 1 and the connecting ring 301, and the smoke particles in the industrial gas are filtered by the primary filter screen 311. The fan blade 305 is blown to rotate, drives the arc-shaped plate 306 to rotate along the inner side of the primary filter screen 311, scrapes off the smoke particles on the inner side of the primary filter screen 311, and then enters the support frame 6 and is filtered and purified by the needle felt filter bag body 2 and discharged.

[0031] All the technical features in the embodiment can be freely combined according to actual needs.

[0032] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A filter device for needle felt filter bags, comprising a mounting ring (1), characterised in that The lower end of the mounting ring (1) is connected with a needle felt filter bag body (2), the inner lower end of the mounting ring (1) is fixedly connected with a fixing ring (5), the lower side of the fixing ring (5) is fixedly connected with a support frame (6), the inner side of the mounting ring (1) is connected with a primary filtering mechanism, the outer end of the mounting ring (1) is connected with a secondary filtering mechanism, and the secondary filtering mechanism comprises a pressing ring (401) connected to the lower end of the mounting ring (1), the four corners of the outer side of the mounting ring (1) are fixedly connected with a fixed frame (402), the inner side of the fixed frame (402) away from the one end of the mounting ring (1) is fixedly connected with a second spring (403), the inner side of the fixed frame (402) is fixedly connected with a limiting rod (404), the other end of the second spring (403) is fixedly connected with a moving plate (405), and the lower side of the moving plate (405) is fixedly connected with a pressing block (406).

2. The filter bag according to claim 1, wherein The primary filtering mechanism comprises a connecting ring (301) connected to the inner side of the mounting ring (1), the inner side of the connecting ring (301) is fixedly connected with a fixed rod (302), the inner side of the fixed rod (302) is fixedly connected with a bearing (303) at the middle position, the inner side of the bearing (303) is fixedly connected with a round rod (304), the outer side of the upper end of the round rod (304) is fixedly connected with a fan blade (305), the lower end of the round rod (304) is fixedly connected with an arc plate (306), the left and right ends of the upper side of the connecting ring (301) are fixedly connected with a connecting frame (307) in a symmetrical manner, the inner side of the connecting frame (307) is fixedly connected with a first spring (308) at the one end close to the center of the connecting ring (301), the other end of the first spring (308) is fixedly connected with a sliding plate (309), the inner side of the sliding plate (309) is fixedly connected with a plug-in rod (310) at the middle position, and the lower side of the connecting ring (301) is fixedly connected with a primary filter screen (311).

3. The needle felt filter bag filter apparatus according to claim 1, wherein, The inner upper end of the moving plate (405) is provided with a circular hole, the outer side of the limiting rod (404) is in sliding connection with the inner side of the circular hole, and the upper end of the moving plate (405) is in sliding connection with the inner side of the fixed frame (402).

4. The filter bag according to claim 1, wherein The outer side of the upper end of the needle felt filter bag body (2) is in abutment with the side adjacent to the mounting ring (1) and the pressing ring (401), and the lower side of the pressing ring (401) is in abutment with the upper side of the pressing block (406).

5. The needle felt filter bag filter apparatus according to claim 1, wherein, The outer end of the support frame (6) is sleeved with the inner side of the needle felt filter bag body (2).

6. A needle felt filter bag filter apparatus according to claim 2, wherein, The inner side of the connecting frame (307) is provided with a sliding hole at the one end away from the mounting ring (1), the outer side of the plug-in rod (310) is in sliding connection with the inner side of the sliding hole, and the outer side of the sliding plate (309) is in sliding connection with the inner side of the connecting frame (307).

7. A needle felt filter bag filter apparatus according to claim 2, wherein, The left and right ends of the inner side of the connecting ring (301) are provided with plug-in holes, the one end of the outer side of the plug-in rod (310) away from the center of the connecting ring (301) is in plug-in connection with the inner side of the plug-in hole, and the upper side of the fixing ring (5) is in abutment with the lower side of the connecting ring (301).

8. The filter bag according to claim 2, wherein The outer side of the arc-shaped plate (306) is in sliding connection with the inner side of the primary filter screen (311).

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