Self-cleaning filter for chemical raw material production

Abstract

The utility model discloses a self-cleaning filter for chemical raw material production, which relates to the technical field of chemical raw material production and comprises a filter barrel for filtering impurity particles in chemical raw materials, and an outer barrel is arranged on the outer side of the filter barrel; a first feeding port is formed in the upper end of the filter barrel, and a discharging pipeline is welded to the lower end of the side, away from the first feeding port, of the filter barrel. The filtering barrel can filter the fluid chemical raw materials, the filtered fluid chemical raw materials can enter the space between the filtering barrel and the outer barrel through filtering seams of the filtering barrel, and impurities are left on the inner side of the filtering barrel; a sealing gasket at the top of the filtering barrel is matched with a clamping ring to play a role in supporting the filtering barrel, so that the filtering barrel is kept stable in the outer barrel, meanwhile, a sealing role is played, unfiltered chemical raw materials are prevented from flowing into a space between the filtering barrel and the outer barrel, and the filtered chemical raw materials are prevented from being mixed with the unfiltered chemical raw materials; and the filtered chemical raw materials flow into the reaction kettle through the discharging pipeline and the connecting pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical raw material production, in particular to a self-cleaning filter for chemical raw material production. Background Art

[0002] There are many kinds of chemical raw materials, and their uses are very wide. There are 5 to 7 million kinds of chemicals in the world, and more than 100,000 kinds of chemicals are sold and circulated in the market. In addition, more than 1,000 new chemicals are introduced every year, and 150 to 200 of them are considered carcinogens. Although many chemical raw materials are very harmful to the human body, they are also necessary for human survival.

[0003] Chinese patent publication number CN 206823297 U discloses a self-cleaning filter, comprising a housing, a sewage pipe and a first water inlet pipe are arranged on the housing, the sewage pipe is located at the bottom of the housing, a filter cartridge sleeve and a filter cartridge are arranged in the housing, the lower end of the filter cartridge sleeve is communicated with the sewage pipe, a plurality of oblique holes are evenly distributed on the side wall of the filter cartridge sleeve, the filter cartridge is located in the filter cartridge sleeve, a filter cartridge seat is arranged at the lower end of the filter cartridge, a water outlet is arranged on the filter cartridge seat, and the lower end of the filter cartridge seat extends out of the filter cartridge sleeve and is fixed to the bottom of the housing;

[0004] The above-mentioned self-cleaning filter has a plurality of inclined holes on the filter sleeve. When sewage passes through the inclined holes, a vortex is generated, and the impurities are taken away by the vortex. However, when the volume of impurities mixed in the chemical raw materials is larger than the diameter of the inclined holes, the vortex generated by the inclined holes can drive the impurities to move, but cannot allow the impurities to pass through the inclined holes, so that the impurities will still accumulate on the outside of the filter sleeve. In addition, the suction force of the vortex generated by the inclined holes is limited. When the weight of the impurities is larger than the suction force of the vortex, the vortex cannot suck away the impurities, resulting in a poor self-cleaning effect of the filter. Utility Model Content

[0005] The purpose of the utility model is to provide a self-cleaning filter for chemical raw material production, which uses a filter barrel to filter the chemical raw materials. When too much impurities accumulate in the filter barrel, a scraper plate moves the impurities to a stacking hopper and discharges them through a sewage pipe to solve the technical problems raised by the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A self-cleaning filter for chemical raw material production, comprising a filter barrel for filtering impurity particles in the chemical raw material, an outer cylinder is arranged on the outer side of the filter barrel; a feed inlet 1 is arranged on the upper end of the filter barrel, a discharge pipe is welded on the lower end of the filter barrel away from the feed inlet 1, and the discharge pipe is connected with the outer cylinder;

[0008] A scraper plate is provided above the filter barrel, and the scraper plate has the same inner diameter as the filter barrel; the middle of the scraper plate is fixedly connected to the telescopic rod of the multi-stage cylinder, and a plurality of through grooves are symmetrically provided on the scraper plate;

[0009] The multi-stage cylinder is located above the outer cylinder, and the bottom of the multi-stage cylinder is fixedly connected to the placement table, and the bottom of the placement table is fixedly connected to the top of the outer cylinder; circular holes for the telescopic rod of the multi-stage cylinder to pass through are provided in the middle of the placement table and the middle of the top of the outer cylinder; a stacking hopper for collecting impurities is welded at the bottom of the outer cylinder.

[0010] As a further technical solution of the utility model, a sealing gasket is fixedly connected to the top of the filter barrel, the bottom of the sealing gasket is fitted with a clamping ring, and the outer side of the clamping ring is welded to the inner wall of the outer cylinder; a sealing ring is sleeved on the bottom of the filter barrel, and the outer side of the sealing ring is fitted with the lower end of the inner wall of the outer cylinder; two handles are symmetrically welded to the top of the filter barrel, and the scraper plate is located between the two handles.

[0011] As a further technical solution of the utility model, the filter barrel and the outer cylinder, the clamping ring, the stacking hopper, the sealing ring and the sealing gasket are all arranged in concentric circles; the stacking hopper is connected to the filter barrel, and the sealing ring separates the outer cylinder and the stacking hopper; a sewage pipe is welded to the bottom of the stacking hopper, and a pneumatic valve is fixedly connected to the sewage pipe.

[0012] As a further technical solution of the utility model, the feed port 1 is fixedly connected to the feed pipe through a flange, and a pressure gauge is fixedly connected to the feed pipe; the end of the discharge pipe away from the outer cylinder is fixedly connected to the connecting pipe through a flange, and the end of the connecting pipe away from the discharge pipe is fixedly connected to the feed port 2 through a quick connector.

[0013] As a further technical solution of the utility model, the end of the second feed port away from the quick connector is welded to the top of the reactor, and the second feed port is connected to the inside of the reactor; the outer side of the outer cylinder is fixedly connected to the fixing frame, and a plurality of brackets are evenly welded on the bottom of the fixing frame.

[0014] As a further technical solution of the utility model, the bottoms of the reactor and multiple brackets are fixedly connected to the top of the base plate; a stand is fixedly connected to one side of the base plate, and the top of the stand is fixedly connected to the controller.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model firstly allows the fluid chemical raw material doped with impurities to flow into the outer cylinder through the feed pipe, and then flow into the inner side of the filter barrel at the upper end of the outer cylinder. The filter barrel can filter the fluid chemical raw material, and the filtered fluid chemical raw material will enter the space between the filter barrel and the outer cylinder through the filter seam of the filter barrel, while the impurities will be left inside the filter barrel; the sealing gasket on the top of the filter barrel cooperates with the clamping ring to support the filter barrel, so that the filter barrel can be kept stable in the outer cylinder, and at the same time, it plays a sealing role to prevent the unfiltered chemical raw material from flowing into the space between the filter barrel and the outer cylinder, and to prevent the filtered chemical raw material from being mixed with the unfiltered chemical raw material; the filtered chemical raw material flows into the reactor through the discharge pipe and the connecting pipe;

[0017] 2. According to the utility model, when there are too many impurities accumulated in the filter barrel, the impurities will block the filter seam of the filter barrel. At this time, the speed of chemical raw materials passing through the filter barrel will decrease, while the feeding speed of the feed pipe remains unchanged, so the pressure of the fluid chemical raw materials in the filter barrel will increase, and the pressure gauge on the feed pipe can monitor the changes of the fluid chemical raw materials in real time. When the pressure of the fluid chemical raw materials exceeds the predetermined range, the multi-stage cylinder can control the scraper plate to move downward. During the downward movement of the scraper plate, the impurities on the inner wall of the filter barrel can be scraped off, and then the scraper plate will concentrate the scraped impurities and push them into the stacking hopper. After a sufficient amount of impurities are accumulated in the stacking hopper, the pneumatic valve will open to allow the impurities in the stacking hopper to be discharged from the stacking hopper through the sewage pipe; through the pressure gauge, the staff can immediately connect to the accumulation of impurities in the filter barrel, which can prevent the accumulation of impurities in the filter barrel from reducing the filtration efficiency of chemical raw materials, and can also prevent the components in the outer cylinder from being damaged due to excessive pressure;

[0018] 3. In the utility model, a plurality of through grooves are arranged on the scraper plate. When the scraper plate moves vertically, the through grooves ensure the fluidity of the chemical raw materials above and below the scraper plate, so that the scraper plate does not affect the normal filtering work of the filter barrel when cleaning the filter barrel, and can also prevent the chemical raw materials from flowing back. In addition, the staff can control the operation of the pneumatic valve and the multi-stage cylinder through the controller, thereby reducing the workload of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0020] Figure 2 This utility model Figure 1 Schematic diagram of part of the structure.

[0021] Figure 3 This utility model Figure 2 Top view of the .

[0022] Figure 4 This utility model Figure 3AA section view.

[0023] Figure 5 This utility model Figure 2 Schematic diagram of the internal structure.

[0024] Figure 6 This utility model Figure 5 Schematic diagram of part of the structure.

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the outer cylinder in the utility model.

[0026] Figure 8 This utility model Figure 7 Schematic diagram of the internal structure.

[0027] Fig. 9 This utility model Figure 6 Schematic diagram of part of the structure.

[0028] Fig.10 This utility model Figure 4 Enlarged view of point A.

[0029] Fig.11 This utility model Figure 4 Enlarged view of point B.

[0030] In the figure: 1-outer cylinder, 2-feeding port 1, 3-discharging pipe, 4-clamping ring, 5-stacking hopper, 6-drainage pipe, 7-pneumatic valve, 8-filter barrel, 9-handle, 10-sealing ring, 11-sealing pad, 12-multi-stage cylinder, 13-scraper plate, 14-feeding pipe, 15-pressure gauge, 16-fixed frame, 17-bracket, 18-connecting pipe, 19-quick connector, 20-placing table, 21-feeding port 2, 22-reactor, 23-bottom plate, 24-controller, 25-stand, 26-through groove. DETAILED DESCRIPTION

[0031] 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.

[0032] See also Figure 1-11In the embodiment of the utility model, a self-cleaning filter for chemical raw material production includes a filter barrel 8 for filtering impurity particles in chemical raw materials, and an outer cylinder 1 is arranged on the outer side of the filter barrel 8; a feed port 2 is arranged on the upper end of the filter barrel 8, and a discharge pipe 3 is welded on the lower end of the filter barrel 8 away from the feed port 2, and the discharge pipe 3 is connected to the outer cylinder 1;

[0033] A scraper plate 13 is provided above the filter barrel 8, and the scraper plate 13 has the same inner diameter as the filter barrel 8; the middle of the scraper plate 13 is fixedly connected to the telescopic rod of the multi-stage cylinder 12, and a plurality of through grooves 26 are symmetrically provided on the scraper plate 13;

[0034] The multi-stage cylinder 12 is located above the outer cylinder 1, and the bottom of the multi-stage cylinder 12 is fixedly connected to the placement table 20, and the bottom of the placement table 20 is fixedly connected to the top of the outer cylinder 1; the middle of the placement table 20 and the middle of the top of the outer cylinder 1 are both provided with circular holes for the telescopic rod of the multi-stage cylinder 12 to pass through; the bottom of the outer cylinder 1 is welded with a stacking hopper 5 for collecting impurities;

[0035] A sealing gasket 11 is fixedly connected to the top of the filter barrel 8, the bottom of the sealing gasket 11 is fitted with the clamping ring 4, and the outer side of the clamping ring 4 is welded to the inner wall of the outer tube 1; a sealing ring 10 is sleeved on the bottom of the filter barrel 8, and the outer side of the sealing ring 10 is fitted with the lower end of the inner wall of the outer tube 1; two handles 9 are symmetrically welded on the top of the filter barrel 8, and the scraper plate 13 is located between the two handles 9.

[0036] By adopting the above technical scheme, first, the fluid chemical raw material doped with impurities flows into the outer cylinder 1 through the feed pipe 14, and flows into the inner side of the filter barrel 8 at the upper end of the outer cylinder 1. The filter barrel 8 can filter the fluid chemical raw material, and the filtered fluid chemical raw material will enter the space between the filter barrel 8 and the outer cylinder 1 through the filter seam of the filter barrel 8, and the impurities will be retained on the inner side of the filter barrel 8; the sealing gasket 11 on the top of the filter barrel 8 cooperates with the retaining ring 4 to support the filter barrel 8, so that the filter barrel 8 remains stable in the outer cylinder 1, and at the same time plays a sealing role to prevent unfiltered chemical raw materials from flowing into the space between the filter barrel 8 and the outer cylinder 1, and to prevent the filtered chemical raw materials from being mixed with unfiltered chemical raw materials; the filtered chemical raw materials flow into the reactor 22 through the discharge pipe 3 and the connecting pipe 18.

[0037] In this embodiment, the filter barrel 8, the outer barrel 1, the clamp ring 4, the stacking hopper 5, the sealing ring 10 and the sealing gasket 11 are all arranged in concentric circles; the stacking hopper 5 is connected to the filter barrel 8, and the sealing ring 10 separates the outer barrel 1 and the stacking hopper 5; a sewage pipe 6 is welded to the bottom of the stacking hopper 5, and a pneumatic valve 7 is fixedly connected to the sewage pipe 6;

[0038] The feed port 1 2 is fixedly connected to the feed pipe 14 via a flange, and a pressure gauge 15 is fixedly connected to the feed pipe 14; the end of the discharge pipe 3 away from the outer cylinder 1 is fixedly connected to the connecting pipe 18 via a flange, and the end of the connecting pipe 18 away from the discharge pipe 3 is fixedly connected to the feed port 2 21 via a quick connector 19.

[0039] By adopting the above technical solution, when there are too many impurities accumulated in the filter barrel 8, the impurities will block the filter seam of the filter barrel 8. At this time, the speed of the chemical raw material passing through the filter barrel 8 will decrease, while the feeding speed of the feed pipe 14 remains unchanged, so the pressure of the fluid chemical raw material in the filter barrel 8 will increase, and the pressure gauge 15 on the feed pipe 14 can monitor the changes of the fluid chemical raw material in real time. When the pressure of the fluid chemical raw material exceeds the predetermined range, the multi-stage cylinder 12 can control the scraper plate 13 to move downward. During the downward movement, the scraper plate 13 can scrape the impurities on the inner wall of the filter barrel 8, and then the scraper plate 13 will push the scraped impurities into the stacking hopper 5. After a sufficient amount of impurities are accumulated in the stacking hopper 5, the pneumatic valve 7 is opened to allow the impurities in the stacking hopper 5 to be discharged from the stacking hopper 5 through the sewage pipe 6; through the pressure gauge 15, the staff can connect the accumulation of impurities in the filter barrel 8 in the first time, which can prevent the accumulation of too many impurities in the filter barrel 8 from reducing the filtration efficiency of the chemical raw materials, and can also prevent the components in the outer cylinder 1 from being damaged due to excessive pressure.

[0040] In this embodiment, the end of the second feed port 21 away from the quick connector 19 is welded to the top of the reactor 22, and the second feed port 21 is connected to the inside of the reactor 22; the outer side of the outer cylinder 1 is fixedly connected to the fixing frame 16, and a plurality of brackets 17 are evenly welded on the bottom of the fixing frame 16;

[0041] The bottoms of the reactor 22 and the multiple brackets 17 are fixedly connected to the top of the bottom plate 23 ; a stand 25 is fixedly connected to one side of the bottom plate 23 , and the top of the stand 25 is fixedly connected to the controller 24 .

[0042] By adopting the above technical solution, a plurality of through grooves 26 are provided on the scraper plate 13. When the scraper plate 13 moves vertically, the through grooves 26 ensure the fluidity of the chemical raw materials above and below the scraper plate 13, so that the scraper plate 13 does not affect the normal filtering work of the filter barrel 8 when cleaning the filter barrel 8, and can also prevent the chemical raw materials from flowing back. In addition, the staff can control the operation of the pneumatic valve 7 and the multi-stage cylinder 12 through the controller 24, thereby reducing the workload of the staff.

[0043] The working principle of the utility model is as follows: first, the fluid chemical raw material doped with impurities flows into the outer cylinder 1 through the feed pipe 14, and flows into the inner side of the filter barrel 8 at the upper end of the outer cylinder 1. The filter barrel 8 can filter the fluid chemical raw material, and the filtered fluid chemical raw material will enter the space between the filter barrel 8 and the outer cylinder 1 through the filter seam of the filter barrel 8, and the impurities will be left inside the filter barrel 8; the sealing gasket 11 on the top of the filter barrel 8 cooperates with the clamping ring 4 to support the filter barrel 8, so that the filter barrel 8 remains stable in the outer cylinder 1, and at the same time plays a sealing role to prevent the unfiltered chemical raw material from flowing into the space between the filter barrel 8 and the outer cylinder 1, and to prevent the filtered chemical raw material from being mixed with the unfiltered chemical raw material; the filtered chemical raw material flows into the reactor 22 through the discharge pipe 3 and the connecting pipe 18;

[0044] When there are too many impurities accumulated in the filter barrel 8, the impurities will block the filter seam of the filter barrel 8. At this time, the speed of the chemical raw material passing through the filter barrel 8 will decrease, while the feeding speed of the feed pipe 14 remains unchanged, so the pressure of the fluid chemical raw material in the filter barrel 8 will increase. The pressure gauge 15 on the feed pipe 14 can monitor the changes of the fluid chemical raw material in real time. When the pressure of the fluid chemical raw material exceeds the predetermined range, the multi-stage cylinder 12 can control the scraper plate 13 to move downward. During the downward movement, the scraper plate 13 can scrape the impurities on the inner wall of the filter barrel 8, and then the scraper plate 13 will push the scraped impurities into the stacking hopper 5. After a sufficient amount of impurities are accumulated in the stacking hopper 5, the pneumatic valve 7 is opened to allow the impurities in the stacking hopper 5 to be discharged from the stacking hopper 5 through the sewage pipe 6; through the pressure gauge 15, the staff can immediately connect the accumulation of impurities in the filter barrel 8, which can prevent the accumulation of too many impurities in the filter barrel 8 from reducing the filtration efficiency of the chemical raw materials, and can also prevent the components in the outer cylinder 1 from being damaged due to excessive pressure;

[0045] The scraper plate 13 is provided with a plurality of through grooves 26. When the scraper plate 13 moves vertically, the through grooves 26 ensure the fluidity of the chemical raw materials above and below the scraper plate 13, so that the scraper plate 13 does not affect the normal filtering work of the filter barrel 8 when cleaning the filter barrel 8, and can also prevent the chemical raw materials from flowing back. In addition, the staff can control the operation of the pneumatic valve 7 and the multi-stage cylinder 12 through the controller 24, thereby reducing the workload of the staff.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A self-cleaning filter for chemical raw material production, characterized in that: It comprises a filter barrel (8) for filtering impurity particles in chemical raw materials, wherein an outer cylinder (1) is arranged on the outer side of the filter barrel (8); a feed port (2) is arranged on the upper end of the filter barrel (8); a discharge pipe (3) is welded on the lower end of the filter barrel (8) away from the feed port (2), and the discharge pipe (3) is connected to the outer cylinder (1); A scraper plate (13) is provided above the filter barrel (8), and the scraper plate (13) has the same inner diameter as the filter barrel (8); the middle of the scraper plate (13) is fixedly connected to the telescopic rod of the multi-stage cylinder (12), and a plurality of through grooves (26) are symmetrically provided on the scraper plate (13); The multi-stage cylinder (12) is located above the outer cylinder (1), and the bottom of the multi-stage cylinder (12) is fixedly connected to the placement table (20), and the bottom of the placement table (20) is fixedly connected to the top of the outer cylinder (1); the middle of the placement table (20) and the middle of the top of the outer cylinder (1) are both provided with circular holes for the telescopic rod of the multi-stage cylinder (12) to pass through; and the bottom of the outer cylinder (1) is welded with a stacking hopper (5) for collecting impurities.

2. The self-cleaning filter for chemical raw material production according to claim 1, characterized in that: The top of the filter barrel (8) is fixedly connected with a sealing gasket (11), the bottom of the sealing gasket (11) is in contact with the clamping ring (4), and the outer side of the clamping ring (4) is welded to the inner wall of the outer cylinder (1); the bottom of the filter barrel (8) is sleeved with a sealing ring (10), and the outer side of the sealing ring (10) is in contact with the lower end of the inner wall of the outer cylinder (1); two handles (9) are symmetrically welded to the top of the filter barrel (8), and the scraper plate (13) is located between the two handles (9).

3. The self-cleaning filter for chemical raw material production according to claim 2, characterized in that: The filter barrel (8) is arranged concentrically with the outer cylinder (1), the clamping ring (4), the stacking hopper (5), the sealing ring (10) and the sealing gasket (11); the stacking hopper (5) is connected to the filter barrel (8), and the sealing ring (10) separates the outer cylinder (1) and the stacking hopper (5); a sewage discharge pipe (6) is welded to the bottom of the stacking hopper (5), and a pneumatic valve (7) is fixedly connected to the sewage discharge pipe (6).

4. The self-cleaning filter for chemical raw material production according to claim 3, characterized in that: The feed port 1 (2) is fixedly connected to the feed pipe (14) via a flange, and a pressure gauge (15) is fixedly connected to the feed pipe (14); the end of the discharge pipe (3) away from the outer cylinder (1) is fixedly connected to the connecting pipe (18) via a flange, and the end of the connecting pipe (18) away from the discharge pipe (3) is fixedly connected to the feed port 2 (21) via a quick connector (19).

5. The self-cleaning filter for chemical raw material production according to claim 4, characterized in that: The end of the second feed port (21) away from the quick connector (19) is welded to the top of the reactor (22), and the second feed port (21) is connected to the inside of the reactor (22); the outer side of the outer cylinder (1) is fixedly connected to the fixing frame (16), and a plurality of brackets (17) are evenly welded to the bottom of the fixing frame (16).

6. The self-cleaning filter for chemical raw material production according to claim 5, characterized in that: The bottoms of the reaction kettle (22) and the multiple brackets (17) are fixedly connected to the top of the base plate (23); a stand (25) is fixedly connected to one side of the base plate (23), and the top of the stand (25) is fixedly connected to the controller (24).

Images