PPS modified acid-base-resistant high-temperature-resistant oxidation-resistant dust removal filter bag

Abstract

The utility model discloses a PPS (polyphenylene sulfide) modified acid-base resistant high temperature resistant oxidation resistant dedusting filter bag, which relates to the technical field of dedusting filter bags and comprises a PPS filter bag, a fixing ring, a compression ring and an adjusting ring, an elastic strip is arranged at the opening of the PPS filter bag, a plurality of support rods distributed in a circular array are fixed at the bottom of the fixing ring, a chassis is fixed at the bottom ends of the plurality of support rods, and a plurality of support rods are fixed at the bottom of the chassis. A connecting pipe is inserted into the middle of the fixing ring, and the fixing ring is fixedly installed on the connecting pipe. The bag opening of the PPS filter bag can be tightened by utilizing the elastic strip, so that the bag opening of the PPS filter bag covers the fixing ring, the adjusting ring, the pressing ring and the fixing ring are sequentially placed from top to bottom, the adjusting ring is rotated to continuously move downwards outside the connecting pipe, the adjusting ring pushes the pressing ring to be matched with the fixing ring to firmly clamp the bag opening of the PPS filter bag, and in the process, the bag opening of the PPS filter bag is tightly clamped. The clamping block can push part of the PPS filter bag to be embedded into the groove, so that the PPS filter bag is clamped and reinforced between the fixing ring and the pressing ring, and the PPS filter bag is convenient to mount and is not easy to damage.

Description

A PPS-modified acid, alkali, high temperature and oxidation resistant dust removal filter bag Technical Field

[0001] This utility model relates to the field of dust collector filter bag technology, and in particular to a PPS modified acid, alkali, high temperature and oxidation resistant dust collector filter bag. Background Technology

[0002] Dust collector filter bags are a type of high-efficiency dust collection media. They are made from raw materials such as polyester staple fiber, PPS fiber, PP polypropylene, aramid fiber, and nylon fiber. Their service life is generally 2-4 years. They have good air permeability, high dust collection rate, are easy to clean, and can achieve a dust removal efficiency of up to 98.99%. PPS filter bags are made from PPS fiber, a crystalline high-performance thermoplastic engineering plastic with many properties such as heat resistance, chemical resistance, flame retardancy, and acid and alkali resistance.

[0003] PPS filter bags are generally fixed using clamps. However, clamps are not easy to control the tightening force during operation, and their edges are relatively sharp, which can easily damage the dust collector filter bag during tightening and affect its service life. Summary of the Invention

[0004] The purpose of this application is to provide a PPS modified acid, alkali, high temperature and oxidation resistant dust collector filter bag to solve the problem mentioned in the background art that the installation of existing PPS filter bags generally uses clamps for fixing. The clamps are not only difficult to control the tightening force during operation, but the edges of the clamps are also relatively sharp, which can easily damage the dust collector filter bag during tightening and affect the service life of the dust collector filter bag.

[0005] To achieve the above objectives, this application provides the following technical solution: a PPS modified acid, alkali, high temperature and oxidation resistant dust removal filter bag, comprising a PPS filter bag, a fixing ring, a pressure ring and an adjusting ring. An elastic strip is provided at the bag opening of the PPS filter bag. Several support rods arranged in a circular array are fixed to the bottom of the fixing ring, and a base plate is fixed to the bottom end of each support rod. A connecting pipe is inserted into the middle of the fixing ring, and the fixing ring is fixedly installed on the connecting pipe. The pressure ring and the adjusting ring are both sleeved on the outside of the connecting pipe, and the adjusting ring is threadedly connected to the connecting pipe. The adjusting ring, pressure ring and fixing ring are arranged sequentially from top to bottom. The elastic strip tightens the bag opening of the PPS filter bag between the fixing ring and the pressure ring.

[0006] Furthermore, a groove is formed on the upper surface of the fixing ring, and a locking block is fixed on the pressure ring. Both the groove and the locking block are annular structures, and the locking block is in clearance fit with the inner wall of the groove.

[0007] Furthermore, the bottom edge of the fixing ring, the top edge of the chassis, and the bottom edge are all provided with arc-shaped chamfers.

[0008] Furthermore, the cross-section of the connecting pipe sidewall is a "J" shape, and the cross-section of the pressure ring sidewall is an inverted "L" shape.

[0009] Furthermore, a first rubber ring is provided at the top edge of the fixing ring, and a second rubber ring is provided at the edge of the pressure ring.

[0010] Furthermore, several reinforcing rings are fixedly sleeved on the outside of several of the support rods, and the several reinforcing rings are arranged linearly from top to bottom.

[0011] Furthermore, the adjusting ring has several reserved grooves on its peripheral side.

[0012] In summary, the technical effects and advantages of this utility model are as follows:

[0013] 1. In this utility model, the elastic strip can be used to tighten the opening of the PPS filter bag, so that the opening of the PPS filter bag covers the fixing ring. The adjusting ring, pressure ring and fixing ring are placed in order from top to bottom. The adjusting ring is rotated and moves down outside the connecting tube, so that the adjusting ring pushes the pressure ring to cooperate with the fixing ring to firmly clamp the opening of the PPS filter bag. During this process, the locking block can push part of the PPS filter bag into the groove, thereby strengthening the clamping of the PPS filter bag between the fixing ring and the pressure ring. This makes the installation of the PPS filter bag not only convenient, but also less prone to damage.

[0014] 2. In this utility model, the first rubber ring set at the top edge of the fixing ring and the second rubber ring set at the bottom edge of the pressure ring can prevent the fixing ring or pressure ring from scratching the PPS filter bag. The reserved groove opened on the outer wall of the adjusting ring provides a force point for the rotation of the adjusting ring, making it more convenient to rotate the adjusting ring. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the embodiments or the prior art will be briefly introduced below.

[0016] Figure 1 is a three-dimensional structural schematic diagram of a PPS modified acid and alkali resistant, high temperature resistant and oxidation resistant dust removal filter bag in an embodiment of this application;

[0017] Figure 2 is an exploded view of a PPS modified acid, alkali, high temperature and oxidation resistant dust removal filter bag in an embodiment of this application;

[0018] Figure 3 is a schematic diagram of the structure of the PPS filter bag and elastic strip in the embodiment of this application;

[0019] Figure 4 is a longitudinal sectional view of the fixing ring, connecting pipe and first rubber ring in an embodiment of this application;

[0020] Figure 5 is a longitudinal sectional view of the pressure ring, the retaining block, and the second rubber ring in an embodiment of this application.

[0021] In the diagram: 1. PPS filter bag; 2. Fixing ring; 3. Pressure ring; 4. Adjusting ring; 5. Elastic strip; 6. Support rod; 7. Base plate; 8. Groove; 9. Connecting pipe; 10. Locking block; 11. First rubber ring; 12. Second rubber ring; 13. Reinforcing ring; 14. Reserved groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example: Referring to Figures 1-5, a PPS modified acid, alkali, high temperature and oxidation resistant dust removal filter bag includes a PPS filter bag 1, a fixing ring 2, a pressure ring 3 and an adjusting ring 4. The side wall of the pressure ring 3 has an inverted "L" shaped cross-section. An elastic strip 5 is provided at the bag opening of the PPS filter bag 1. Multiple support rods 6 arranged in a circular array are fixed at the bottom of the fixing ring 2. A base plate 7 is fixed at the bottom end of the multiple support rods 6. A connecting pipe 9 is inserted into the middle of the fixing ring 2. The side wall of the connecting pipe 9 has a "J" shaped cross-section, and the fixing ring 2 is fixedly installed on the connecting pipe 9. The pressure ring 3 and the adjusting ring 4 are both sleeved on the outside of the connecting pipe 9, and the adjusting ring 4 is threaded to the connecting pipe 9. The adjusting ring 4, pressure ring 3 and fixing ring 2 are arranged in order from top to bottom. The elastic strip 5 tightens the bag opening of the PPS filter bag 1 between the fixing ring 2 and the pressure ring 3.

[0024] The elastic strip 5 can be used to tighten the opening of the PPS filter bag 1, so that the opening of the PPS filter bag 1 covers the fixing ring 2. The adjusting ring 4, the pressure ring 3 and the fixing ring 2 are placed from top to bottom. The adjusting ring 4 is rotated and moves down outside the connecting pipe 9, so that the adjusting ring 4 pushes the pressure ring 3 to cooperate with the fixing ring 2 to firmly clamp the opening of the PPS filter bag 1.

[0025] The upper surface of the fixing ring 2 is provided with a groove 8, and a locking block 10 is fixed on the pressure ring 3. Both the groove 8 and the locking block 10 are annular structures, and the locking block 10 is in clearance fit with the inner wall of the groove 8.

[0026] The PPS filter bag 1 is pushed into the groove 8 by the card block 10, thereby reinforcing the PPS filter bag 1 by clamping it between the fixing ring 2 and the pressure ring 3.

[0027] The bottom edge of the fixing ring 2 and the top and bottom edges of the base 7 are all provided with arc-shaped chamfers. The arc-shaped chamfers are provided to prevent the fixing ring 2 and the base 7 from scratching the PPS filter bag 1 during installation. A first rubber ring 11 is provided at the top edge of the fixing ring 2 and a second rubber ring 12 is provided at the edge of the pressure ring 3. The first rubber ring 11 at the top edge of the fixing ring 2 and the second rubber ring 12 at the bottom edge of the pressure ring 3 can prevent the fixing ring 2 or the pressure ring 3 from scratching the PPS filter bag 1.

[0028] Multiple reinforcing rings 13 are fixedly sleeved on the outside of the multiple support rods 6. The multiple reinforcing rings 13 are arranged linearly from top to bottom. The multiple reinforcing rings 13 sleeved on the outside of the support rods 6 can enhance the stability of the support rods 6 in supporting the PPS filter bag 1, thereby improving the compressive strength of the support rods 6.

[0029] The adjusting ring 4 has multiple reserved grooves 14 on its circumferential side. The reserved grooves 14 on the outer wall of the adjusting ring 4 provide a force point for the rotation of the adjusting ring 4, making it easier for the adjusting ring 4 to rotate.

[0030] The working principle of this practical application is as follows:

[0031] Remove the PPS filter bag 1 and open its opening so that the base plate 7 and support rod 6 are inserted into the interior of the PPS filter bag 1, until the fixing ring 2 is also inserted into the interior of the PPS filter bag 1. Then, loosen the opening of the PPS filter bag 1 and use the elastic strip 5 to close the opening of the PPS filter bag 1, so that part of the PPS filter bag 1 at the opening adheres to the upper surface of the fixing ring 2. Remove the pressure ring 3 and adjusting ring 4 and attach them to the outside of the connecting pipe 9, so that the adjusting ring 4 is above the pressure ring 3. The adjusting ring 4 is threadedly connected to the connecting pipe 9. The long rod is inserted into the reserved groove 14. With the help of the long rod, the adjusting ring 4 can be rotated, so that the adjusting ring 4 moves down continuously outside the connecting pipe 9. The adjusting ring 4 can push the pressure ring 3 down, so that the pressure ring 3 moves closer to the fixing ring 2. The locking block 10 on the pressure ring 3 can push part of the PPS filter bag 1 into the groove 8 until the bottom of the pressure ring 3 contacts the connecting pipe 9. When the pressure ring 3 can no longer move down, the fixing ring 2 cooperates with the pressure ring 3 to complete the clamping of the bag mouth of the PPS filter bag 1, thus completing the installation of the PPS filter bag 1.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A PPS modified acid, alkali, high temperature and oxidation resistant dust removal filter bag, comprising a PPS filter bag (1), a fixing ring (2), a pressure ring (3) and an adjusting ring (4), characterized in that: The PPS filter bag (1) has an elastic strip (5) at the bag opening. The bottom of the fixing ring (2) is fixed with several support rods (6) arranged in a circular array. The bottom end of the support rods (6) is fixed with a base plate (7). A connecting pipe (9) is inserted into the middle of the fixing ring (2), and the fixing ring (2) is fixedly installed on the connecting pipe (9). The pressure ring (3) and the adjusting ring (4) are both sleeved on the outside of the connecting pipe (9), and the adjusting ring (4) is threaded to the connecting pipe (9). The adjusting ring (4), the pressure ring (3), and the fixing ring (2) are arranged in order from top to bottom. The elastic strip (5) tightens the bag opening of the PPS filter bag (1) between the fixing ring (2) and the pressure ring (3).

2. The PPS modified acid, alkali, high temperature and oxidation resistant dust removal filter bag according to claim 1, characterized in that: The upper surface of the fixing ring (2) is provided with a groove (8), and a locking block (10) is fixed on the pressure ring (3). Both the groove (8) and the locking block (10) are annular structures, and the locking block (10) is in clearance fit with the inner wall of the groove (8).

3. The PPS modified acid, alkali, high temperature and oxidation resistant dust removal filter bag according to claim 1, characterized in that: The bottom edge of the fixing ring (2) and the top and bottom edges of the chassis (7) are all provided with arc-shaped chamfers.

4. The PPS modified acid, alkali, high temperature and oxidation resistant dust removal filter bag according to claim 1, characterized in that: The cross-section of the side wall of the connecting pipe (9) is a "J" shaped structure, and the cross-section of the side wall of the pressure ring (3) is an inverted "L" shaped structure.

5. The PPS modified acid, alkali, high temperature and oxidation resistant dust removal filter bag according to claim 1, characterized in that: A first rubber ring (11) is provided at the top edge of the fixing ring (2), and a second rubber ring (12) is provided at the edge of the pressure ring (3).

6. The PPS modified acid, alkali, high temperature and oxidation resistant dust removal filter bag according to claim 1, characterized in that: A plurality of reinforcing rings (13) are fixedly sleeved on the outside of a plurality of the support rods (6), and the plurality of reinforcing rings (13) are arranged linearly from top to bottom.

7. The PPS modified acid, alkali, high temperature and oxidation resistant dust removal filter bag according to claim 1, characterized in that: The adjusting ring (4) has several reserved grooves (14) on its peripheral side.

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