A corrosion-proof basket filter

Abstract

The utility model discloses a kind of anti-corrosion basket filters, including cylinder, filter basket is arranged in cylinder, it is characterized in that, filter bag of tetrafluoro material is sleeved in the filter basket, inlet and outlet are arranged in cylinder, solid-liquid is entered from the inlet, after entering the filter basket from the top of the filter basket, and enter the inside of filter bag, at this time, solid particles in feed liquid are intercepted in filter bag, liquid is entered into cylinder by the filter bag and filter basket, and is discharged from the outlet, the overflow part of lower cylinder and upper cylinder and the like cylinder is metal lining tetrafluoro structure, the filter basket is metal spraying tetrafluoro structure, the filter bag is tetrafluoro material, the tetrafluoro nut and tetrafluoro stud are also tetrafluoro material, the tetrafluoro strap is also tetrafluoro material, position adjustment is carried out by the tetrafluoro nut and tetrafluoro stud, make remaining flange cover cooperate and compress tightly, to fix the filter basket, so that it cannot shake.

Description

Technical Field

[0001] This utility model relates to the field of filtration technology, specifically a corrosion-resistant basket filter. Background Technology

[0002] In industries such as petrochemicals, pharmaceuticals, and environmental protection, basket filters are key equipment in pipeline systems for trapping solid impurities, and their performance directly affects the stability and safety of the process. With the increasing complexity of industrial media, the technical problems of traditional basket filters are becoming increasingly apparent.

[0003] For example: First, the connection structure between the filter basket and the cylinder is unstable, causing the filter basket to shake or the seal to fail, thus compromising filtration stability. Second, as a key component that directly contacts the liquid, the filter bag is prone to damage and detachment due to loose installation, allowing solid particles to penetrate and rendering the filter ineffective. Furthermore, the flow channel design of traditional filters has flaws; the liquid often enters the filter basket from the side or bottom, easily creating a dead flow zone at the top of the basket, affecting filtration efficiency. Additionally, the complex fit between the filter basket and the cylinder makes subsequent maintenance and use difficult. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a corrosion-resistant basket filter, which can solve the problems in the prior art.

[0005] This utility model is achieved through the following technical solution: A corrosion-resistant basket filter of this utility model includes a cylindrical body, in which a filter basket is disposed. The filter basket is fitted with a filter bag made of PTFE material. The cylindrical body is provided with an inlet and an outlet. After the solid-containing liquid enters from the inlet, it enters the filter basket from the top and then enters the filter bag. At this time, the solid particles in the liquid are intercepted in the filter bag. The liquid then enters the cylindrical body through the filter bag and the filter basket and is discharged from the outlet.

[0006] In a further technical solution, the filter basket has a metal-sprayed PTFE structure.

[0007] In a further technical solution, the filter bag is made of PTFE material.

[0008] A further technical solution is provided between the filter basket and the cylinder, which enables the filter basket to be adjusted up and down and fixed. The adjustment and fixing structure includes a pressure strip fixedly installed on the top of the filter basket, and a PTFE stud fixedly installed at the lower end of the top of the inner side of the cylinder. Two PTFE nuts are threadedly connected to the outer surface of the PTFE stud, and the PTFE nuts are respectively abutted and fixed on the upper and lower sides of the pressure strip.

[0009] In a further technical solution, the filter bag is fitted onto the outer periphery of the top flange of the filter basket, and a PTFE cable tie is provided on the outer surface of the filter basket to tighten and fix the filter bag to the outer surface of the filter basket.

[0010] In a further technical solution, a ring seat is fixedly provided on the outer surface of the filter basket, and a ring plate is fixedly provided in the cylinder, with the ring seat abutting against the upper end face of the ring plate.

[0011] A further technical solution involves providing a drain outlet and a vent outlet within the cylinder.

[0012] A further technical solution is that the cylinder includes a lower cylinder and an upper cylinder, the lower cylinder is fixedly disposed on the lower side of the upper cylinder, and an annular plate is fixedly disposed between the lower cylinder and the upper cylinder.

[0013] In a further technical solution, the cylinder also includes a flange cover, a sealing gasket, and a flange. The flange cover and the flange are connected and fixed by fasteners. The sealing gasket is fixedly disposed between the flange cover and the flange. The flange is fixedly disposed on the outer surface of the upper cylinder.

[0014] In a further technical solution, the inner wall areas of the lower and upper cylinders that come into contact with the liquid material are metal-lined with PTFE.

[0015] The beneficial effects of this utility model are as follows: First, the inner wall areas of the lower and upper cylinders that come into contact with the liquid are made of metal lined with PTFE, the filter basket is made of metal sprayed with PTFE, the filter bag is made of PTFE, the PTFE nuts and studs are also made of PTFE, and the PTFE cable ties are also made of PTFE. The position is adjusted by the PTFE nuts and studs, so that the flange covers are pressed together to fix the filter basket and prevent it from shaking.

[0016] Second, the filter bag is fixed to the filter basket by the PTFE cable ties, and the filter bag is placed inside the filter basket, which solves the corrosion problem of traditional basket filters that cannot be lined with PTFE.

[0017] Third, by not providing through holes at the top of the filter basket, but providing through holes at other locations, the solid-containing liquid flowing in from the inlet can flow from the top of the filter basket into the filter bag, and then flow out of the filter from the filter bag, filter basket and outlet, which is very efficient.

[0018] Fourth, the filter basket is limited by the ring seat and the top of the ring plate, and then fixedly connected to the bottom of the flange cover by the adjustment and fixing structure, so as to improve the placement and connection stability of the filter basket and improve the filtration effect. Attached Figure Description

[0019] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of a corrosion-resistant basket filter according to the present invention;

[0021] Figure 2 for Figure 1 A schematic diagram at point A in the middle;

[0022] Figure 3 for Figure 1 A schematic diagram at point B in the middle;

[0023] In the figure, the components are: lower cylinder 11, filter basket 12, ring seat 13, upper cylinder 14, inlet 15, filter bag 16, PTFE cable tie 17, flange 18, flange cover 19, sealing gasket 20, pressure strip 21, vent 22, PTFE nut 23, PTFE stud 24, ring plate 25, outlet 26, and drain port 27. Detailed Implementation

[0024] like Figures 1-3 As shown, this utility model will be described in detail. For ease of description, the directions mentioned below are defined as follows: the directions of up, down, left, right, front, and back mentioned below are the same as... Figure 1 The projection relationship of this utility model is consistent in the up, down, left, right, front and back directions. It is a corrosion-resistant basket filter, including a cylindrical body, in which a filter basket 12 is provided, and a filter bag 16 is sleeved in the filter basket 12. The cylindrical body is provided with an inlet 15 and an outlet 26. After the solid liquid enters from the inlet 15, it enters the filter basket 12 from the top and then enters the filter bag 16. At this time, the solid particles in the liquid are intercepted in the filter bag. The liquid then enters the cylindrical body through the filter bag 16 and the filter basket 12 and is discharged from the outlet 26. An adjustment and fixing structure is provided between the filter basket 12 and the cylindrical body to allow the filter basket 12 to be adjusted up and down and fixed.

[0025] Advantageously, the adjusting and fixing structure includes a pressure strip 21 fixedly installed on the top of the filter basket 12, and a PTFE stud 24 fixedly installed at the lower end of the top of the inner side of the cylinder. Two PTFE nuts 23 are threadedly connected to the outer surface of the PTFE stud 24. The PTFE nuts 23 are respectively fixed to the upper and lower sides of the pressure strip 21. By adjusting the upper and lower positions of the PTFE nuts 23, the upper and lower positions of the filter basket 12 can be adjusted, and the filter basket 12 is fixed in the cylinder by the PTFE stud 24, PTFE nuts 23 and pressure strip 21.

[0026] Advantageously, the filter basket 12 is not provided with through holes at the part opposite to the inlet 15, so that the liquid containing solids can flow in from the inlet 15 and then enter the top of the cylinder through the barrier of the filter basket 12, and then enter the filter bag 16 from the top of the filter basket 12. The filter basket 12 is provided with multiple through holes at the position opposite to the outlet 26, and multiple through holes are also provided on the lower outer surface of the filter basket 12.

[0027] Advantageously, the filter bag 16 is fitted around the outer periphery of the top flange of the filter basket 12, and a PTFE cable tie 17 is provided on the outer surface of the filter basket 12 to tighten and fix the filter bag 16 to the outer surface of the filter basket 12.

[0028] Advantageously, a ring seat 13 is fixedly provided on the outer surface of the filter basket 12, and a ring plate 25 is fixedly provided in the cylinder. The ring seat 13 abuts against the upper end face of the ring plate 25, so that the filter basket 12 is placed in the cylinder.

[0029] Advantageously, the cylinder is also provided with a drain port 27 and a vent port 22. The drain port 27 is located on the lower side of the cylinder, and the vent port 22 is located on the upper side of the cylinder. The drain port 27 and the vent port 22 are normally closed.

[0030] Advantageously, the cylinder includes a lower cylinder 11 and an upper cylinder 14. The lower cylinder 11 is fixedly disposed on the lower side of the upper cylinder 14. The drain port 27 is disposed on the lower right side of the lower cylinder 11. An annular plate 25 is fixedly disposed between the lower cylinder 11 and the upper cylinder 14. The annular seat 13 abuts against the annular plate 25. After the solid-containing liquid enters from the inlet 15, it passes through the interior of the upper cylinder 14 and then enters the top of the filter basket 12.

[0031] Advantageously, the cylinder also includes a flange cover 19, a sealing gasket 20, and a flange 18. The flange cover 19 and the flange 18 are connected and fixed by fasteners. The sealing gasket 20 is fixedly disposed between the flange cover 19 and the flange 18. The flange 18 is fixedly disposed on the outer surface of the upper cylinder 14.

[0032] Advantageously, the vent 22 is located on the top of the flange cover 19.

[0033] Advantageously, the PTFE stud 24 is fixedly disposed on the lower side of the flange cover 19.

[0034] Advantageously, the inner wall areas of the lower cylinder 11 and the upper cylinder 14 that are in contact with the liquid are metal-lined with PTFE, the filter basket 12 is metal-sprayed with PTFE, the filter bag 16 is made of PTFE, the PTFE nut 23 and the PTFE stud 24 are also made of PTFE, and the PTFE cable tie 17 is also made of PTFE.

[0035] The vent 22 and drain 27 in the filter are normally closed. The liquid containing solids enters from the inlet 15, passes through the inside of the upper cylinder 14, and then enters the inside of the filter bag 16 through the top of the filter basket 12. At this time, the solid particles in the liquid are intercepted in the filter bag 16. After passing through the filter bag 16 and the filter basket 12, the liquid enters the lower cylinder 11 and then is discharged from the filter bag 16.

[0036] When connecting the filter basket 12 and the filter bag 16, first place the flange of the filter bag 16 onto the top outer surface of the filter basket 12, and then tighten it with PTFE cable ties 17 to fix the filter bag 16 in the filter basket 12.

[0037] When replacing the filter bag 16, loosen the fasteners between the flange cover 19 and the flange 18, and then directly pull the flange cover 19, filter basket 12, filter bag 16 and adjusting fixing structure upwards from the lower cylinder 11. After cutting the PTFE cable ties 17, remove the filter bag 16 from the filter basket 12.

[0038] By adjusting the vertical height of the filter basket 12, the ring seat 13 can abut against the ring plate 25 when the filter basket 12 is placed into the upper cylinder 14 and the lower cylinder 11. Specifically, the adjustment is made by rotating the PTFE nut 23 to change the vertical position of the PTFE nut 23, which indirectly adjusts the position of the filter basket 12 and the pressure strip 21 relative to the PTFE stud 24.

[0039] Furthermore, the PTFE nut 23 can be completely separated from the PTFE stud 24 to replace the new filter basket 12.

[0040] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without creative effort should be included within the protection scope of this utility model; therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A corrosion-resistant basket filter, comprising a cylindrical body, wherein a filter basket (12) is disposed within the cylindrical body, characterized in that, The filter basket (12) is fitted with a filter bag (16) made of anti-corrosion material. The cylinder is provided with an inlet (15) and an outlet (26). An adjustment and fixing structure is provided between the filter basket (12) and the cylinder to allow the filter basket (12) to be adjusted up and down and fixed. The adjustment and fixing structure includes a pressure strip (21) fixedly installed on the top of the filter basket (12). A PTFE stud (24) is fixedly installed at the lower end of the top inside the cylinder. Two PTFE nuts (23) are threadedly connected to the outer surface of the PTFE stud (24). The PTFE nuts (23) are respectively fixed to the upper and lower sides of the pressure strip (21).

2. The corrosion-resistant basket filter according to claim 1, characterized in that: The filter basket (12) has a metal-sprayed PTFE structure.

3. The corrosion-resistant basket filter according to claim 1, characterized in that: The filter bag (16) is made of PTFE.

4. The corrosion-resistant basket filter according to claim 1, characterized in that: The filter bag (16) is fitted around the top flange of the filter basket (12). The outer surface of the filter basket (12) is provided with a PTFE cable tie (17), which pulls the filter bag (16) tight and fixes it to the outer surface of the filter basket (12).

5. A corrosion-resistant basket filter according to claim 1, characterized in that: The filter basket (12) has a ring seat (13) fixedly installed on its outer surface, and a ring plate (25) is fixedly installed in the cylinder. The ring seat (13) abuts against the upper end face of the ring plate (25).

6. A corrosion-resistant basket filter according to claim 1, characterized in that: The cylinder is also equipped with a drain port (27) and a vent port (22).

7. A corrosion-resistant basket filter according to any one of claims 1-6, characterized in that: The cylinder includes a lower cylinder (11) and an upper cylinder (14), wherein the lower cylinder (11) is fixedly disposed on the lower side of the upper cylinder (14).

8. A corrosion-resistant basket filter according to claim 7, characterized in that: The cylinder also includes a flange cover (19), a sealing gasket (20), and a flange (18). The flange cover (19) and the flange (18) are connected and fixed by fasteners. The sealing gasket (20) is fixedly disposed between the flange cover (19) and the flange (18). The flange (18) is fixedly disposed on the outer surface of the upper cylinder (14).

9. A corrosion-resistant basket filter according to claim 7, characterized in that: The lower cylinder (11) and upper cylinder (14) are metal-lined PTFE structures.

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