Liquid filtering ptfe filter bag

Abstract

The utility model relates to the technical field of liquid filtration ptfe filter bags, and discloses a liquid filtration ptfe filter bag which comprises a filter bag body, a filter assembly is arranged in the filter bag body, the filter assembly comprises a top disc, an inserting rod and an elastic column, the top disc is fixedly connected with a base through a support, a filter funnel is fixedly installed at the bottom of the top disc, and the inserting rod is fixedly connected with the base. By arranging the filter assembly and arranging the metal wire mesh, the polyester fiber filter screen and the glass fiber filter screen in the filter bag body, impurity particles of different sizes and types can be intercepted more comprehensively, and then the three layers of filter screens and the support are fixed or detached through the insertion rods, so that the filter bag is more convenient to use. Therefore, when the three layers of filter screens are blocked or damaged, a worker can easily take out the three layers of filter screens to independently clean, maintain or replace the three layers of filter screens, so that the whole filter assembly does not need to be replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of PTFE filter bags for liquid filtration, in particular to a PTFE filter bag for liquid filtration. Background Art

[0002] PTFE filter bags have excellent chemical stability and heat resistance, and are representatives of higher performance in the filter material industry. Commonly used filter materials include PE, PP, PTFE, NMO, etc. PTFE is made of needle-punched felt made of polytetrafluoroethylene fibers. It is resistant to acids and alkalis, and various organic solvents, and is almost insoluble in all solvents. However, existing PTFE filter bags have some problems when filtering liquids. Due to the large amount of impurities in the liquid, PTFE filter bags are prone to clogging during direct filtration, thereby reducing their service life.

[0003] After searching, the applicant found that a Chinese patent disclosed "a PTFE filter bag specifically for liquid filtration", and its publication (announcement) number is "CN214913808U". This patent mainly places the filter frame inside the water inlet pipe. The slide can be easily moved and automatically reset after being supported by the bottom spring and the movable plate. The cooperation between the slide groove and the slider can easily adjust the position of the slide. An interaction force can be formed between the spring and the perforation. However, this patent cannot replace or disassemble the filter screen. In actual use, as the use time increases, the filter screen may gradually accumulate impurities and become clogged, resulting in a worsening filtration effect. For this reason, we propose a PTFE filter bag for liquid filtration. Utility Model Content

[0004] The purpose of the present utility model is to provide a liquid filtration PTFE filter bag to solve the problem proposed in the above-mentioned background technology that the filter screen cannot be replaced or disassembled for cleaning. In actual use, as the use time increases, the filter screen may gradually accumulate impurities and become clogged, resulting in increasingly poor filtering effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liquid filtration PTFE filter bag, comprising a filter bag body, a filter assembly arranged inside the filter bag body, the filter assembly comprising a top plate, an insertion rod and an elastic column, the top plate is fixedly connected to the base through a bracket, a filter funnel is fixedly installed on the bottom of the top plate, a metal wire mesh, a polyester fiber filter mesh and a glass fiber filter mesh are arranged on the inner wall of the bracket from top to bottom, and the metal wire mesh, polyester fiber filter mesh and glass fiber filter mesh are all connected to the bracket through an insertion rod and an elastic column.

[0006] As a preferred solution, the bottom of the top plate is in contact with the top of the filter bag body, and the bottom of the top plate is provided with multiple groups of brackets distributed in a circumferential manner. The bottom of the bracket is fixedly installed on the top of the base, and the bottom of the base is in contact with the inner bottom wall of the filter bag body.

[0007] As a preferred solution, two groups of elastic columns are provided, and the two groups of elastic columns are arranged on both sides of the circumferential surface of the insertion rod. The metal wire mesh, polyester fiber filter mesh, glass fiber filter mesh and the inner wall of the bracket are all provided with insertion holes, and the insertion rod is inserted into the inner wall of the insertion hole.

[0008] As a preferred solution, a mounting assembly is provided on the top of the filter assembly, and the mounting assembly includes a nut, a rotating rod is fixedly installed on the bottom of the nut, and holes are opened on both sides of the top of the filter bag body, and the rotating rod is adapted to the hole slots.

[0009] As a preferred solution, a fixing block is fixedly installed on the circumferential surface of the rotating rod, a sliding groove is opened on the inner wall of the hole groove, and the fixing block is slidably connected to the inner wall of the sliding groove.

[0010] As a preferred solution, a spring is fixedly installed on the inner bottom wall of the hole groove, a limiting groove is provided in the middle of the inner wall of the hole groove, and the top of the spring fits with the bottom of the rotating rod.

[0011] Technical effects and advantages of this utility model:

[0012] 1. Through the filter assembly, a wire mesh, a polyester fiber filter and a glass fiber filter are set inside the filter bag body to more comprehensively intercept impurity particles of different sizes and types. The three layers of filter screens are fixed or disassembled with the bracket by inserting rods. In this way, when the three layers of filter screens are blocked or damaged, the staff can easily remove them for separate cleaning, maintenance or replacement, without having to replace the entire filter assembly.

[0013] 2. Through the installation assembly, a spring is set inside the filter bag body and a limit groove is opened. The filter assembly is installed inside the filter bag body by rotating the fixed block set on the surface of the rod. In this way, when one of the filter bag body or the filter assembly is damaged, aged or the performance deteriorates, the staff can disassemble it separately and replace the corresponding parts, so there is no need to replace the entire bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the overall internal structure of the utility model;

[0016] Figure 3 This is a partial structural diagram of the filter assembly of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the installation component of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the installation component of the utility model;

[0019] Figure 6 for Figure 5 Enlarged schematic diagram of point A in the middle.

[0020] In the figure: 1. Filter bag body; 2. Filter assembly; 201. Top plate; 202. Filter funnel; 203. Bracket; 204. Wire mesh; 205. Polyester fiber filter; 206. Glass fiber filter; 207. Base; 208. Insert rod; 209. Elastic column; 3. Mounting assembly; 301. Nut; 302. Rotating rod; 303. Fixing block; 304. Slide; 305. Spring; 306. Hole slot; 307. Limiting slot. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1:

[0023] Please see the attached Figure 1 - Attachment Figure 3A liquid filtration PTFE filter bag includes a filter bag body 1, a filter assembly 2 is arranged inside the filter bag body 1, the filter assembly 2 includes a top plate 201, an insertion rod 208 and an elastic column 209, the top plate 201 is fixedly connected to the base 207 through a bracket 203, a filter funnel 202 is fixedly installed on the bottom of the top plate 201, and a metal wire mesh 204, a polyester fiber filter mesh 205 and a glass fiber filter mesh 206 are arranged on the inner wall of the bracket 203 from top to bottom. The metal wire mesh 204, the polyester fiber filter mesh 205 and the glass fiber filter mesh 206 are all connected by the insertion rod 208 and the elastic column 209. The elastic column 209 is connected to the bracket 203, the bottom of the top plate 201 is in contact with the top of the filter bag body 1, and the bottom of the top plate 201 is provided with multiple groups of brackets 203 distributed in a circle. The bottom of the bracket 203 is fixedly mounted on the top of the base 207, and the bottom of the base 207 is in contact with the inner bottom wall of the filter bag body 1. There are two groups of elastic columns 209, which are arranged on both sides of the circumferential surface of the insertion rod 208. The metal wire mesh 204, the polyester fiber filter mesh 205, the glass fiber filter mesh 206 and the inner wall of the bracket 203 are all provided with insertion holes, and the insertion rod 208 is inserted into the inner wall of the insertion hole.

[0024] When the staff installs or removes the three-layer filter screen, they can first press the elastic column 209 inward, then pass the insertion rod 208 through the bracket 203 and the inside of the three-layer filter screen, and finally release the elastic column 209, so as to achieve the purpose of installing or removing the three-layer filter screen.

[0025] Specifically, by setting up the filter assembly 2, a metal wire mesh 204, a polyester fiber filter mesh 205 and a glass fiber filter mesh 206 are set inside the filter bag body 1, so that foreign particles of different sizes and types can be intercepted more comprehensively, and then the three layers of filter mesh and the bracket 203 are fixed or disassembled by the insertion rod 208. In this way, when the three layers of filter mesh are blocked or damaged, the staff can easily remove them and clean, repair or replace them separately, without having to replace the entire filter assembly 2.

[0026] Example 2:

[0027] Please see the attached Figure 1 , Attachment Figure 2 , Attachment Figure 4 , Attachment Figure 5 And attached Figure 6, and on the basis of Example 1, it is further obtained that a mounting assembly 3 is provided on the top of the filter assembly 2, and the mounting assembly 3 includes a nut 301, and a rotating rod 302 is fixedly installed at the bottom of the nut 301, and holes 306 are provided on both sides of the top of the filter bag body 1, and the rotating rod 302 is adapted to the hole groove 306. A fixing block 303 is fixedly installed on the circumferential surface of the rotating rod 302, and a sliding groove 304 is provided on the inner wall of the hole groove 306. The fixing block 303 is slidably connected to the inner wall of the sliding groove 304, and a spring 305 is fixedly installed on the inner bottom wall of the hole groove 306. A limiting groove 307 is provided in the middle of the inner wall of the hole groove 306, and the top of the spring 305 fits with the bottom of the rotating rod 302.

[0028] During the process of installing the filter assembly 2 on the filter bag body 1, the staff can rotate the angle of the rotating rod 302, and then rotate the fixed block 303 fixed on the surface of the rotating rod 302 to the inside of the limiting groove 307, so that the rotating rod 302 is stuck inside the hole groove 306. Conversely, the disassembly operation is the same.

[0029] Specifically, through the installation component 3, a spring 305 is set inside the filter bag body 1 and a limit groove 307 is opened. The filter component 2 is installed inside the filter bag body 1 through the fixing block 303 set on the surface of the rotating rod 302. In this way, when one of the filter bag body 1 or the filter component 2 is damaged, aged or has degraded performance, the staff can disassemble it separately and replace the corresponding parts, thereby eliminating the need for overall replacement.

[0030] Working principle of this utility model: This utility model is a liquid filtering PTFE filter bag. First, the staff will sequentially fit the metal mesh 204, polyester fiber filter mesh 205 and glass fiber filter mesh 206 to the inner wall of the bracket 203, then press the elastic column 209 and insert the plug 208 into the inner wall of the socket. In this way, the metal mesh 204, polyester fiber filter mesh 205 and glass fiber filter mesh 206 can be sequentially installed on the inner wall of the bracket 203. Conversely, the same operation steps are followed for disassembly. Secondly, When placing the filter assembly 2 into the interior of the filter bag body 1, the staff first places the nut 301 and the rotating rod 302 in the hole groove 306, then rotates the fixing block 303 to the inside of the slide groove 304, and then presses the rotating rod 302. Under the pressing force, the spring 305 will expand and contract. At this time, the staff will rotate the fixing block 303 to the inside of the limiting groove 307, thereby fixing the rotating rod 302 inside the hole groove 306, thereby realizing the fixed installation of the filter bag body 1 and the filter assembly 2, and the same is true for disassembly.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A liquid filtration PTFE filter bag, comprising a filter bag body (1), characterized in that: A filter assembly (2) is provided inside the filter bag body (1), and the filter assembly (2) comprises a top plate (201), an insertion rod (208), and an elastic column (209); the top plate (201) is fixedly connected to a base (207) via a bracket (203); a filter funnel (202) is fixedly mounted on the bottom of the top plate (201); a metal wire mesh (204), a polyester fiber filter mesh (205), and a glass fiber filter mesh (206) are sequentially provided on the inner wall of the bracket (203) from top to bottom; the metal wire mesh (204), the polyester fiber filter mesh (205), and the glass fiber filter mesh (206) are all connected to the bracket (203) via the insertion rod (208) and the elastic column (209).

2. A liquid filtration PTFE filter bag according to claim 1, characterized in that: The bottom of the top plate (201) is in contact with the top of the filter bag body (1), and a plurality of groups of brackets (203) distributed in a circumferential pattern are provided at the bottom of the top plate (201). The bottom of the brackets (203) is fixedly mounted on the top of the base (207), and the bottom of the base (207) is in contact with the inner bottom wall of the filter bag body (1).

3. A liquid filtration PTFE filter bag according to claim 2, characterized in that: Two groups of elastic columns (209) are provided, and the two groups of elastic columns (209) are arranged on both sides of the circumferential surface of the insertion rod (208). The inner walls of the metal wire mesh (204), the polyester fiber filter mesh (205), the glass fiber filter mesh (206) and the bracket (203) are all provided with insertion holes, and the insertion rod (208) is inserted into the inner walls of the insertion holes.

4. A liquid filtration PTFE filter bag according to claim 3, characterized in that: A mounting assembly (3) is provided on the top of the filter assembly (2), the mounting assembly (3) comprising a nut (301), a rotating rod (302) being fixedly mounted on the bottom of the nut (301), holes (306) being provided on both sides of the top of the filter bag body (1), the rotating rod (302) being adapted to the holes (306).

5. A liquid filtration PTFE filter bag according to claim 4, characterized in that: A fixing block (303) is fixedly mounted on the circumferential surface of the rotating rod (302), a sliding groove (304) is provided on the inner wall of the hole groove (306), and the fixing block (303) is slidably connected to the inner wall of the sliding groove (304).

6. A liquid filtration PTFE filter bag according to claim 5, characterized in that: A spring (305) is fixedly mounted on the inner bottom wall of the hole groove (306), a limiting groove (307) is provided in the middle of the inner wall of the hole groove (306), and the top of the spring (305) is in contact with the bottom of the rotating rod (302).

Images