Dedusting filter bag based on alkali-free expanded glass fiber cloth

Abstract

The utility model discloses a dust removal filter bag based on alkali-free bulked glass fiber cloth, which relates to the technical field of dust removal filter bags and comprises a first filter bag, a top ring is sleeved at the top end of the first filter bag, a pull rope is arranged in the middle of the top ring, a fastening bolt is arranged on one side of the pull rope, a connecting cylinder is movably connected with the bottom end of the first filter bag, and the bottom end of the first filter bag is movably connected with the connecting cylinder. The outer wall of the connecting cylinder is sleeved with a middle ring, the bottom end of the connecting cylinder is movably connected with a second filter bag, the bottom end of the second filter bag is fixedly connected with a bottom ring, and the middle of the bottom ring is fixedly connected with a transverse plate. According to the utility model, a series of structures are arranged, so that the time required for the filter bag to penetrate through the tubesheet hole can be shortened, the time required for the longer dust removal filter bag to penetrate through the tubesheet hole to be mounted is saved, meanwhile, the filtering surface area of the filter bag can be increased, and the limitation of the size of the filter bag on the filtering efficiency of the filter bag is relieved; the filtering efficiency of the filter bag is favorably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal filter bags, in particular to a dust removal filter bag based on alkali-free expanded glass fiber cloth. Background Art

[0002] Dust filter bag is a kind of high-efficiency dust removal filter material, usually made of long fibers such as polyester or alkali-free glass fiber cloth. It has good air permeability, high dust collection rate, easy cleaning, and certain acid, alkali and heat resistance. It is widely used in chemical, chemical fiber and cement industries and is the best choice for handling dust and fine particles.

[0003] However, for large-sized dust collectors, the length of the existing dust filter bags based on alkali-free expanded glass fiber cloth is usually set to be longer, and the filter bag needs to be installed through the hole in the flower plate, which makes it troublesome and time-consuming to install the filter bag as a whole through the hole in the flower plate; in addition, the size of the outer surface of the existing dust filter bag is determined by the size of the filter bag, and the size of the filter bag is usually fixed, so that the filtration efficiency of the filter bag will be weakened by the limitation of the size of the filter bag. Utility Model Content

[0004] The utility model aims to provide a dust removal filter bag based on alkali-free expanded glass fiber cloth to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dust removal filter bag based on alkali-free expanded glass fiber cloth, comprising a first filter bag, the top end of the first filter bag is sleeved with a top ring, the middle part of the top ring is provided with a pull rope, one side of the pull rope is provided with a fastening bolt, the bottom end of the first filter bag is movably connected with a connecting tube, the outer wall of the connecting tube is sleeved with a middle ring, the bottom end of the connecting tube is movably connected with a second filter bag, the bottom end of the second filter bag is fixedly connected with a bottom ring, the middle part of the bottom ring is fixedly connected with a cross plate, the bottom of the cross plate is provided with a counterweight ball, and the bottom of the bottom ring is provided with a cavity.

[0006] Preferably, a cross bar is fixedly connected to the inner wall of the top ring, and a round hole is opened in the middle of the cross bar.

[0007] Preferably, the pull rope is movably connected to the cross bar through a circular hole, and the pull rope is movably connected to the top ring through the cross bar.

[0008] Preferably, the fastening bolt is movably threadedly connected to the cross bar, and the fastening bolt is movably connected to the pull rope through the cross bar.

[0009] Preferably, a ball is fixedly connected to the top end of the pull rope, and the bottom end of the pull rope is fixedly connected to the top end of the horizontal plate.

[0010] Preferably, the bottom end of the horizontal plate is fixedly connected with a vertical rod, the bottom end of the vertical rod is fixedly connected with a counterweight ball, and the counterweight ball is fixedly connected with the horizontal plate through the vertical rod.

[0011] Preferably, the second filter bag is movably embedded and connected to the first filter bag via a connecting tube.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The dust filter bag based on alkali-free expanded glass fiber cloth can be divided into upper and lower parts through the middle ring, bottom ring, connecting tube, first filter bag and second filter bag, and the second filter bag where the lower part is located can be recessed and embedded in the first filter bag, so that the time required for the filter bag to pass through the hole of the flower plate can be shortened, thereby saving the time required for the dust filter bag with a long length to pass through the hole of the flower plate for installation.

[0014] 2. The dust filter bag based on alkali-free expanded glass fiber cloth can make the second filter bag slide out from the inside of the first filter bag through the cavity, draw rope, counterweight ball and fastening bolts, so that the size of the dust filter bag becomes longer and the size of the dust filter bag can be flexibly adjusted according to actual usage, so that the surface area of ​​the dust filter bag that can filter dust becomes larger, and the limitation of the filter bag size on the filtering efficiency of the filter bag is removed, which is beneficial to improve the filtering efficiency of the filter bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the pull rope and weight ball structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the middle ring and the connecting tube of the utility model;

[0018] Figure 4 This is a schematic diagram of the cross bar and bottom ring structure of the utility model.

[0019] In the figure: 1. top ring; 2. pull rope; 3. round ball; 4. cross bar; 5. fastening bolts; 6. cross plate; 7. bottom ring; 8. first filter bag; 9. middle ring; 10. second filter bag; 11. vertical rod; 12. counterweight ball; 13. connecting tube; 14. cavity; 15. round hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figures 1 to 4 As shown, the dust removal filter bag of this embodiment is based on alkali-free expanded glass fiber cloth, including a first filter bag 8, the top end of the first filter bag 8 is sleeved with a top ring 1, the middle part of the top ring 1 is provided with a pull rope 2, one side of the pull rope 2 is provided with a fastening bolt 5, the bottom end of the first filter bag 8 is movably connected with a connecting tube 13, the outer wall of the connecting tube 13 is sleeved with a middle ring 9, the bottom end of the connecting tube 13 is movably connected with a second filter bag 10, the bottom end of the second filter bag 10 is fixedly connected with a bottom ring 7, the middle part of the bottom ring 7 is fixedly connected with a cross plate 6, the bottom of the cross plate 6 is provided with a counterweight ball 12, and the bottom of the bottom ring 7 is provided with a cavity 14.

[0024] Specifically, the first filter bag 8 and the second filter bag 10 are made of alkali-free expanded glass fiber cloth, which has the characteristics of high temperature resistance, corrosion resistance and good air permeability. The outer diameter of the first filter bag 8 is larger than the outer diameter of the second filter bag 10, so that the second filter bag 10 can be smoothly folded from the connecting tube 13 of the first filter bag 8 and embedded in the first filter bag 8, so that the length of the filter bag can be shortened, thereby facilitating the filter bag to pass through the hole of the flower plate for installation and fixation, saving the time required for the filter bag to pass through the hole of the flower plate for installation and fixation, the inner diameter of the top ring 1 is larger than the outer diameter of the bottom ring 7, so that the top of the first filter bag 8 can be smoothly stuck on the hole of the flower plate, the function of the pull rope 2 is to pull the bottom ring 7, so that the bottom ring 7 can drive the second filter bag 10 to remain embedded in the first filter bag 8, thereby facilitating the first filter bag 8 to pass through the hole of the flower plate, the end of the fastening bolt 5 is fixedly connected with a rubber pad, which can be tightly attached to the outer wall of the pull rope 2 after tightening, so that the pull rope 2 can be temporarily locked on the cross bar 4, thereby facilitating the stability of the pull rope 2, and the material of the connecting tube 13 is the same as that of the first filter bag 8. The filter bag 8 and the second filter bag 10 are made of the same material. At the same time, the connecting tube 13 can facilitate the second filter bag 10 to be folded along the bottom end of the first filter bag 8, so as to facilitate the second filter bag 10 to be embedded and turned out from the bottom end of the first filter bag 8. The function of the bottom ring 7 is to maintain the stability of the bottom end of the second filter bag 10. The function of the cross plate 6 is to enable the bottom ring 7 to be connected to the pull rope 2 and to prevent the bottom ring 7 from being easily deformed. The weight ball 12 can generate a downward pulling force on the bottom ring 7 and the cross plate 6 under the action of gravity, so that The bottom ring 7 can be pulled down by the counterweight ball 12 after the pull rope 2 is lowered, so that the second filter bag 10 can be turned out from the bottom end of the first filter bag 8, so that the length of the filter bag can be flexibly adjusted, while increasing the area of ​​the dust removal filter bag that can filter dust, and improving the filtration efficiency of the filter bag. The cavity 14 is a cavity formed after the second filter bag 10 is folded and embedded in the bottom of the first filter bag 8. Its size will become smaller as the second filter bag 10 slides out from the bottom end of the first filter bag 8, until the second filter bag 10 is completely turned out, and the cavity 14 will disappear.

[0025] Furthermore, a cross bar 4 is fixedly connected to the inner wall of the top ring 1, and a circular hole 15 is opened in the middle of the cross bar 4. The inner diameter of the circular hole 15 is larger than the outer diameter of the pull rope 2, so that the pull rope 2 is not easy to rub against the cross bar 4 frequently when passing through the cross bar 4, thereby reducing the wear on the pull rope 2.

[0026] Furthermore, the pull rope 2 is movably connected to the cross bar 4 through the circular hole 15, and the pull rope 2 is movably connected to the top ring 1 through the cross bar 4. After the pull rope 2 passes through the cross bar 4 and the top ring 1, it can pull the bottom ring 7, so that the bottom ring 7 can be connected to the top ring 1 through the pull rope 2, thereby facilitating the adjustment of the length of the second filter bag 10 in the first filter bag 8.

[0027] Furthermore, the fastening bolt 5 is movably threadedly connected to the cross bar 4, and the fastening bolt 5 is movably connected to the pull rope 2 through the cross bar 4. The end of the fastening bolt 5 can be close to the surface of the pull rope 2, so that the length of the pull rope 2 after adjustment can be kept fixed, thereby facilitating the normal use of the filter bag after the length adjustment is completed.

[0028] Furthermore, a ball 3 is fixedly connected to the top of the pull rope 2, and the bottom end of the pull rope 2 is fixedly connected to the top of the cross plate 6. The outer diameter of the ball 3 is larger than the inner diameter of the round hole 15, so that the top end of the pull rope 2 is not easy to slide to the bottom end of the cross bar 4, thereby limiting the pull rope 2.

[0029] Furthermore, the bottom end of the horizontal plate 6 is fixedly connected with a vertical rod 11, and the bottom end of the vertical rod 11 is fixedly connected with a counterweight ball 12. The counterweight ball 12 is fixedly connected with the horizontal plate 6 through the vertical rod 11. The vertical rod 11 can connect the counterweight ball 12 with the horizontal plate 6. At the same time, the vertical rod 11 is made of rigid material, which can ensure the stability of the connection between the counterweight ball 12 and the horizontal plate 6.

[0030] Furthermore, the second filter bag 10 is movably embedded in the first filter bag 8 via the connecting tube 13. When the second filter bag 10 slides out from the bottom of the first filter bag 8, the connecting tube 13 will also be brought out from the bottom of the middle ring 9 by the second filter bag 10, so that the second filter bag 10 can always maintain a connected whole state with the first filter bag 8.

[0031] The method of using this embodiment is as follows: when installing the dust filter bag based on alkali-free expanded glass fiber cloth, first pass the middle ring 9 through the hole of the flower plate, and then make the entire first filter bag 8 pass through the hole of the flower plate, until the top ring 1 contacts the hole of the flower plate, the top ring 1 can be stuck on the hole of the flower plate, so that the entire filter bag passes through the hole of the flower plate, after the top ring 1 is fixed and installed, the first filter bag 8 will be affected by the middle ring 9 and remain in a drooping state, then the fastening bolt 5 can be loosened, so that the pull rope 2 can slide freely in the circular hole 15 in the middle of the cross bar 4, and then the pull rope 2 is lowered, so that the cross plate 6 and the bottom ring 7 pulled by the bottom end of the pull rope 2 slide down under the traction of the counterweight ball 12, The bottom end of the second filter bag 10 slides down inside the first filter bag 8, so that the second filter bag 10 drives the connecting tube 13 to slide out from the bottom of the middle ring 9. At this time, the length of the bottom end of the first filter bag 8 will become longer, and the surface area for filtering dust and small particles will also increase. When the second filter bag 10 slides out to a suitable length, the fastening bolts 5 are retightened to keep the pull rope 2 stationary in the cross bar 4. At the same time, the horizontal plate 6 and the bottom ring 7 are pulled upward by the pull rope 2, which offsets the downward pulling force of the counterweight ball 12. At this time, the horizontal plate 6 and the bottom ring 7 will also remain stationary, thus completing the adjustment of the filter bag length, so that the dust filtering area of ​​the dust removal filter bag becomes larger.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A dust removal filter bag based on alkali-free expanded glass fiber cloth, comprising a first filter bag (8), characterized in that: The top end of the first filter bag (8) is sleeved with a top ring (1), the middle part of the top ring (1) is provided with a draw rope (2), one side of the draw rope (2) is provided with a fastening bolt (5), the bottom end of the first filter bag (8) is movably connected with a connecting tube (13), the outer wall of the connecting tube (13) is sleeved with a middle ring (9), the bottom end of the connecting tube (13) is movably connected with a second filter bag (10), the bottom end of the second filter bag (10) is fixedly connected with a bottom ring (7), the middle part of the bottom ring (7) is fixedly connected with a cross plate (6), the bottom of the cross plate (6) is provided with a counterweight ball (12), and the bottom of the bottom ring (7) is provided with a cavity (14).

2. The dust removal filter bag based on alkali-free expanded glass fiber cloth according to claim 1, characterized in that: A cross bar (4) is fixedly connected to the inner wall of the top ring (1), and a circular hole (15) is provided in the middle of the cross bar (4).

3. A dust removal filter bag based on alkali-free expanded glass fiber cloth according to claim 2, characterized in that: The pull rope (2) is movably connected to the cross bar (4) through the circular hole (15), and the pull rope (2) is movably connected to the top ring (1) through the cross bar (4).

4. The dust removal filter bag based on alkali-free expanded glass fiber cloth according to claim 3, characterized in that: The fastening bolt (5) is movably threadedly connected to the cross bar (4), and the fastening bolt (5) is movably connected to the pull rope (2) through the cross bar (4).

5. The dust removal filter bag based on alkali-free expanded glass fiber cloth according to claim 1, characterized in that: The top end of the pull rope (2) is fixedly connected to a round ball (3), and the bottom end of the pull rope (2) is fixedly connected to the top end of the horizontal plate (6).

6. The dust removal filter bag based on alkali-free expanded glass fiber cloth according to claim 1, characterized in that: The bottom end of the horizontal plate (6) is fixedly connected to a vertical rod (11), the bottom end of the vertical rod (11) is fixedly connected to a counterweight ball (12), and the counterweight ball (12) is fixedly connected to the horizontal plate (6) via the vertical rod (11).

7. The dust removal filter bag based on alkali-free expanded glass fiber cloth according to claim 1, characterized in that: The second filter bag (10) is movably embedded and connected to the first filter bag (8) via a connecting tube (13).

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