Anti-blocking bag type filter

Abstract

The utility model discloses an anti-blocking bag type filter, which belongs to the field of bag type filters and comprises a tank body, a gland arranged above the tank body, a liquid inlet arranged at the top of the tank body, a liquid outlet arranged at the lower part of the tank body, a slag discharge port arranged at the bottom of the tank body, supporting legs arranged below the tank body and an adjustable mesh basket arranged inside the tank body, a filter bag is arranged on the outer side of the adjustable mesh basket, and a beating assembly is arranged in the adjustable mesh basket. The adjustable mesh basket is arranged, the outer diameter of the adjustable mesh basket can be enlarged or reduced, the filter bag can be expanded and loosened, the beating assembly is arranged in the adjustable mesh basket, when the outer diameter of the adjustable mesh basket is changed, the beating assembly beats the filter bag, mud on the filter bag can be cleared away, and the replacement frequency of the filter bag is reduced.

Description

Technical Field

[0001] The utility model relates to the field of bag filters, in particular to an anti-clogging bag filter. Background Art

[0002] The existing bag filter is fixed in the tank body by installing a filter bag on the outer surface of the basket. The sewage enters the filter bag from the outside, is filtered by the filter bag, and then discharged from the top of the inside. Fine particles in the sewage, such as mud, will be adsorbed on the outer surface of the filter bag, affecting further filtration.

[0003] Many manufacturers use a method to clean the mud adsorbed on the filter bag. In order to improve the utilization rate of the tank, the outer diameter of the filter bag is often set to be equal to the inner diameter of the tank, and the gap between the filter bag and the inner wall of the tank is small, so that the mud will adhere to the gap between the outside of the filter bag and the tank; the existing cleaning method is backwashing or blowing high-pressure gas above the filter bag. Since the mud will adhere to the gap between the outside of the filter bag and the tank, it is difficult to clean out the mud even with high-pressure gas blowing or backwashing. The filter bag is easily blocked and needs to be replaced regularly. Utility Model Content

[0004] The utility model aims to provide an anti-clogging bag filter to solve the problems in existing bag filters that mud will adhere to the gap between the outside of the filter bag and the tank body, it is difficult to clean out the mud, the filter bag is easily clogged, and regular replacement is required.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] The utility model discloses an anti-clogging bag filter, comprising a tank body, a pressure cover is arranged above the tank body, a liquid inlet is arranged on the top of the tank body, a liquid outlet is arranged at the bottom of the tank body, a slag discharge port is arranged at the bottom of the tank body, supporting legs are arranged below the tank body, an adjustable mesh basket is arranged inside the tank body, and a filter bag is arranged on the outside of the adjustable mesh basket; the adjustable mesh basket comprises a mesh basket seat, the mesh basket seat is arranged inside the tank body, two adjusting disk assemblies are symmetrically arranged below the mesh basket seat, the two adjusting disk assemblies are connected together by a plurality of second connecting rods, the adjusting disk assembly located above is connected to the mesh basket seat by a first connecting rod, a connecting shaft is arranged at the center position of the two adjusting disk assemblies, and a plurality of knocking assemblies are arranged on the connecting shaft.

[0007] Furthermore, a support platform for mounting the basket seat is provided on the inner wall of the tank body.

[0008] Furthermore, the adjusting disk assembly includes a fixed plate, on which a plurality of movable rods are slidably arranged, the plurality of movable rods are evenly distributed in a circle, a support plate is arranged on the outer side of the movable rod, a second gear is arranged at the center position of the fixed plate, a first gear is meshedly connected to one side of the second gear, an adjusting rod is arranged at the center of the first gear, a limiting groove is arranged on the second gear, a limiting column is arranged on the movable rod near the center of the second gear, and the limiting column slides along the limiting groove.

[0009] Furthermore, the support plate is configured as an arc-shaped plate.

[0010] Furthermore, a sliding groove is provided on the fixed plate, and the movable rod slides along the sliding groove.

[0011] Furthermore, the knocking assembly includes a disc, which is arranged on the connecting shaft. A third connecting rod is arranged on the top surface of the disc. The other end of the third connecting rod is rotatably connected to a knocking rod. A limiting sleeve is arranged on the outer side of the knocking rod, and the limiting sleeve is connected to the connecting shaft through a support rod.

[0012] Furthermore, the support rod is rotatably connected to the connecting shaft via a bearing.

[0013] Furthermore, the support rod includes a vertical rod and a horizontal rod vertically connected together, the vertical rod is connected to the limiting sleeve, and the horizontal rod is rotatably connected to the connecting shaft through a bearing.

[0014] Compared with the prior art, the beneficial technical effects of the utility model are:

[0015] The utility model provides an adjustable mesh basket, the outer diameter of which can be expanded or reduced, so that the filter bag can be stretched and relaxed; a knocking assembly is provided inside the adjustable mesh basket, and when the outer diameter of the adjustable mesh basket is changed, the knocking assembly knocks the filter bag, which is beneficial for cleaning mud on the filter bag and reducing the number of times the filter bag is replaced. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 1 This is a front view of the anti-clogging bag filter of the utility model;

[0018] Figure 2 It is a cross-sectional view of the anti-clogging bag filter of the utility model;

[0019] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0020] Figure 4It is a three-dimensional structural schematic diagram of the adjusting disk assembly of the utility model;

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the adjusting disk assembly of the utility model from another angle;

[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of the adjusting disk assembly of the utility model after omitting the second gear;

[0023] Figure 7 It is a three-dimensional structural schematic diagram of the striking component of the utility model.

[0024] Explanation of the accompanying drawings: 1. tank body; 1-1. liquid inlet; 1-2. liquid outlet; 1-3. slag discharge port; 2. pressure cover; 3. support leg; 4. support platform; 5. adjustable basket; 5-1. basket seat; 5-2. first connecting rod; 5-3. adjusting disk assembly; 5-3-1. fixed plate; 5-3-1-1. slide groove; 5-3-2. first gear; 5-3-3. second gear; 5-3-3-1. limiting groove; 5-3-4. movable rod; 5-3-5. support plate; 5-3-6. limiting column; 5-4. connecting shaft; 5-5. second connecting rod; 5-6. adjusting rod; 6. filter bag; 7. knocking assembly; 7-1. disc; 7-2. third connecting rod; 7-3. knocking rod; 7-4. limiting sleeve; 7-5. support rod. DETAILED DESCRIPTION

[0025] like Figure 1-7 As shown, an anti-clogging bag filter comprises a tank body 1, a pressure cover 2 is detachably installed on the top of the tank body 1, a liquid inlet 1-1 is connected to the top of the tank body 1, a liquid outlet 1-2 is connected to the bottom of the tank body 1, a slag discharge port 1-3 is connected to the bottom of the tank body 1, three supporting legs 3 are installed below the tank body 1, a supporting platform 4 is connected to the inner wall of the tank body 1, an adjustable mesh basket 5 is pressed on the supporting platform 4, a filter bag 6 is sleeved on the outer side of the adjustable mesh basket 5, and a knocking assembly 7 is installed inside the adjustable mesh basket 5.

[0026] like Figure 2 , 3 As shown, the adjustable basket 5 includes a basket seat 5-1, and the basket seat 5-1 is pressed on the support platform 4. Two adjusting disk assemblies 5-3 are symmetrically arranged below the basket seat 5-1. The two adjusting disk assemblies 5-3 are connected together by a plurality of second connecting rods 5-5. The adjusting disk assembly 5-3 located above is connected to the basket seat 5-1 through a plurality of first connecting rods 5-2. A connecting shaft 5-4 is connected to the center position of the two adjusting disk assemblies 5-3, and a plurality of knocking assemblies 7 are installed on the connecting shaft 5-4.

[0027] Take the adjustment disk assembly located at the top as an example to introduce its specific structure: Figure 4-6 As shown, the adjusting disk assembly 5-3 includes a fixed plate 5-3-1, and the top surface of the fixed plate 5-3-1 is connected to multiple first connecting rods 5-2, and the other end of the first connecting rod 5-2 is connected to the basket seat 5-1, and five movable rods 5-3-4 are slidably arranged on the fixed plate 5-3-1, and five slide grooves 5-3-1-1 are opened on the fixed plate 5-3-1, and the movable rods 5-3-4 slide along the slide grooves 5-3-1-1, and the five movable rods 5-3-4 are evenly distributed in a circle, and the outer side of the movable rod 5-3-4 is connected to an arc-shaped supporting plate 5-3-5, and the outer edges of the five supporting plates 5-3-5 are in contact with the filter bag 6 to support the filter bag 6, and the second gear 5-3-3 is rotatably installed at the center position of the bottom surface of the fixed plate 5-3-1, and the second gear 5- One side of 3-3 is meshedly connected with a first gear 5-3-2, and the first gear 5-3-2 is rotatably connected to the fixed plate 5-3-1. An adjusting rod 5-6 is installed at the center of the first gear 5-3-2. Five limit grooves 5-3-3-1 are opened on the second gear 5-3-3. The limit grooves 5-3-3-1 are set as arc grooves. The five limit grooves 5-3-3-1 are arranged to diverge outward from the center of the second gear 5-3-3. A limit column 5-3-6 is connected to the position of the movable rod 5-3-4 close to the center of the second gear 5-3-3. The limit column 5-3-6 slides along the limit groove 5-3-3-1, and the exposed end of the limit column 5-3-6 is also connected to a limit boss. The limit boss is set to prevent the limit column 5-3-6 from escaping from the limit groove 5-3-3-1.

[0028] The adjusting disk assembly located at the bottom is symmetrically arranged with the adjusting disk assembly located at the top, the adjusting rod 5-6 is connected with the upper and lower first gears 5-3-2, the upper end of the adjusting rod 5-6 extends to the top of the pressure cover 2, and a hand wheel is installed on the top of the adjusting rod 5-6, which is convenient for the staff to rotate the adjusting rod 5-6; in order to save more effort, the adjusting rod 5-6 can also be driven to rotate by a driving device such as a motor; when in use, the adjusting rod 5-6 is rotated, the adjusting rod 5-6 drives the two first gears 5-3-2 to rotate, and the first gear 5-3-2 drives the second gear 5-3-3 engaged therewith to rotate, and during the rotation of the second gear 5-3-3, the limiting column 5-3-6 moves along the limiting groove 5-3-3-1, driving the movable rod 5-3-4 to move inward or outward along the slide groove 5-3-1-1, and then driving the support plate 5-3-5 to move inward or outward, thereby reducing or expanding the diameter of the outer circle composed of the five support plates 5-3-5.

[0029] like Figure 2 , 7As shown, the knocking assembly 7 includes a disk 7-1, which is mounted on the connecting shaft 5-4. The disk 7-1 rotates together with the connecting shaft 5-4. The top surface of the disk 7-1 is connected with a third connecting rod 7-2, and the third connecting rod 7-2 is eccentrically arranged. The other end of the third connecting rod 7-2 is connected with a knocking rod 7-3 through a rotating shaft. The outer side of the knocking rod 7-3 is provided with a limiting sleeve 7-4, and the limiting sleeve 7-4 is connected to the connecting shaft 5-4 through a support rod 7-5. Specifically, in this embodiment, the support rod 7-5 includes a vertical rod and a horizontal rod vertically connected together, the vertical rod is connected to the limiting sleeve 7-4, and the horizontal rod is rotatably connected to the connecting shaft 5-4 through a bearing, and the horizontal rod remains stationary during the connecting shaft 5-4.

[0030] When in use, when the second gear 5-3-3 rotates, it drives the connecting shaft 5-4 at its center to rotate, and the rotation of the connecting shaft 5-4 drives the disc 7-1 to rotate. The third connecting rod 7-2 rotates together with the disc 7-1, driving the knocking rod 7-3 to move back and forth along the limiting sleeve 7-4, constantly knocking the filter bag 6.

[0031] An air inlet pipe for introducing high-pressure gas is provided on the upper outer wall of the tank body 1 or on the gland 2, and the upper high-pressure gas is blown outward from the inside of the filter bag; an air inlet pipe can also be connected to the lower outer wall of the tank body 1 or to the liquid inlet 1-1, and the lower high-pressure gas is blown inward from the outside of the filter bag; the mud adsorbed on the outside of the filter bag 6 can be blown dry by the high-pressure gas.

[0032] The working process of the utility model is as follows:

[0033] In the working state, the outer diameter of the adjustable mesh basket 5 is the largest, the filter bag 6 is stretched open, the valves on the liquid inlet 1-1 and the liquid outlet 1-2 are opened, the dirty liquid enters from the liquid inlet 1-1, is filtered by the filter bag 6, and the clean liquid flows out from the liquid outlet 1-2.

[0034] The adsorbent on the outside of the filter bag 6 increases, the valves on the liquid inlet 1-1 and the liquid outlet 1-2 are closed, the valves on the air inlet pipe and the slag discharge port 1-3 are opened, and high-pressure gas is introduced into the tank body 1 to discharge the residual dirty liquid in the tank body 1.

[0035] Continue to blow high-pressure gas from the air inlet pipe to dry the adsorbent on the outside of the filter bag 6.

[0036] The adjusting rod 5-6 is turned, and the adjusting rod 5-6 drives the two first gears 5-3-2 to rotate, and the first gear 5-3-2 drives the second gear 5-3-3 meshing therewith to rotate. During the rotation of the second gear 5-3-3, the limiting column 5-3-6 moves along the limiting groove 5-3-3-1, drives the movable rod 5-3-4 to move inward along the slide groove 5-3-1-1, and then drives the supporting plate 5-3-5 to move inward, so that the diameter of the outer circle formed by the five supporting plates 5-3-5 is reduced, the outer diameter of the adjustable net basket 5 is reduced, and the filter bag 6 is relaxed; when the second gear 5-3-3 rotates, it drives the connecting shaft 5-4 at its center to rotate, and the rotation of the connecting shaft 5-4 drives the disc 7-1 to rotate, and the third connecting rod 7-2 rotates together with the disc 7-1, driving the knocking rod 7-3 to move back and forth along the limiting sleeve 7-4, constantly knocking the filter bag 6, so that the adsorbed material on the filter bag 6 falls off.

[0037] In order to make the adsorbent on the filter bag 6 fall off completely, the adjusting rod 5-6 can be rotated in the opposite direction again to move the five support plates 5-3-5 outward, and the outer diameter of the adjustable net basket 5 can be increased, so that the outer edge of the support plate 5-3-5 and the second connecting rod 5-5 can contact the filter bag 6 again, and the filter bag 6 can be opened again. During this process, the knocking rod 7-3 knocks the filter bag 6 again; by repeatedly adjusting the adjustable net basket 5, the adjustable net basket 5 is repeatedly opened or moved away from the filter bag 6, so that the filter bag 6 shakes, and the adsorbent outside the filter bag 6 is completely dropped by the knocking of the knocking component 7, and discharged through the slag discharge port 1-3.

[0038] After the adsorbent on the outside of the filter bag 6 is cleaned, the dirty liquid filtering work can be performed again.

[0039] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. An anti-clogging bag filter, comprising a tank body (1), a gland (2) is arranged above the tank body (1), a liquid inlet (1-1) is arranged at the top of the tank body (1), a liquid outlet (1-2) is arranged at the bottom of the tank body (1), a slag discharge port (1-3) is arranged at the bottom of the tank body (1), and a support leg (3) is arranged below the tank body (1), characterized in that: An adjustable net basket (5) is arranged inside the tank body (1), and a filter bag (6) is arranged outside the adjustable net basket (5); the adjustable net basket (5) comprises a net basket seat (5-1), the net basket seat (5-1) is arranged inside the tank body (1), two adjustment disk assemblies (5-3) are symmetrically arranged below the net basket seat (5-1), the two adjustment disk assemblies (5-3) are connected together through a plurality of second connecting rods (5-5), the adjustment disk assembly (5-3) located above is connected to the net basket seat (5-1) through a first connecting rod (5-2), a connecting shaft (5-4) is arranged at the center position of the two adjustment disk assemblies (5-3), and a plurality of knocking assemblies (7) are arranged on the connecting shaft (5-4).

2. The anti-clogging bag filter according to claim 1, characterized in that: A support platform (4) for mounting the net basket seat (5-1) is provided on the inner wall of the tank body (1).

3. The anti-clogging bag filter according to claim 1, characterized in that: The adjusting disk assembly (5-3) comprises a fixed plate (5-3-1), on which a plurality of movable rods (5-3-4) are slidably arranged, the plurality of movable rods (5-3-4) being evenly distributed in a circle, a supporting plate (5-3-5) being arranged on the outer side of the movable rod (5-3-4), a second gear (5-3-3) being arranged at the center of the fixed plate (5-3-1), one side of the second gear (5-3-3) being meshingly connected with a first gear (5-3-2), an adjusting rod (5-6) being arranged at the center of the first gear (5-3-2), a limiting groove (5-3-3-1) being arranged on the second gear (5-3-3), a limiting column (5-3-6) being arranged on the movable rod (5-3-4) near the center of the second gear (5-3-3), and the limiting column (5-3-6) sliding along the limiting groove (5-3-3-1).

4. The anti-clogging bag filter according to claim 3, characterized in that: The support plate (5-3-5) is configured as an arc-shaped plate.

5. The anti-clogging bag filter according to claim 3, characterized in that: The fixed plate (5-3-1) is provided with a sliding groove (5-3-1-1), and the movable rod (5-3-4) slides along the sliding groove (5-3-1-1).

6. The anti-clogging bag filter according to claim 1, characterized in that: The knocking assembly (7) comprises a disc (7-1), the disc (7-1) being arranged on the connecting shaft (5-4), a third connecting rod (7-2) being arranged on the top surface of the disc (7-1), a knocking rod (7-3) being rotatably connected to the other end of the third connecting rod (7-2), a limiting sleeve (7-4) being arranged on the outer side of the knocking rod (7-3), and the limiting sleeve (7-4) being connected to the connecting shaft (5-4) via a supporting rod (7-5).

7. The anti-clogging bag filter according to claim 6, characterized in that: The support rod (7-5) is rotatably connected to the connecting shaft (5-4) via a bearing.

8. The anti-clogging bag filter according to claim 7, characterized in that: The support rod (7-5) comprises a vertical rod and a horizontal rod vertically connected together, the vertical rod is connected to the limiting sleeve (7-4), and the horizontal rod is rotatably connected to the connecting shaft (5-4) via a bearing.

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