High-viscosity fluid filtering device

Abstract

The utility model discloses a high-viscosity fluid filtering device which comprises a feed port, an upper filter belt, a filter belt cleaning tank A, a press roll group, a filtrate collecting tank, a waste discharge port, a filter belt cleaning tank B, a filtrate collecting pipeline, a lower filter belt and a device frame. According to the scheme, a combination mode of foam cleaning and high-temperature steam cleaning is used, and compared with a soaking scrubbing technology, the foam cleaning uses fewer cleaning agents, so that the economical efficiency is higher; compared with a water gun spray washing technology, high-temperature steam washing is less in water consumption, high in cleaning efficiency and less in residual water stain after washing; high-temperature steam cleaning and foam cleaning are placed in one cleaning tank, and the temperature in the cleaning tank is increased by utilizing heat energy generated by a high-temperature steam spray gun, so that the foam cleaning efficiency is higher; the equipment adopts a high-temperature steam cleaning technology, so that few water spots are remained on the surface of the cleaned filter belt, and the influence of water on materials when the filter belt is repeatedly used is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of high-viscosity material filtering and processing, in particular to a high-viscosity fluid filtering device. Background Art

[0002] In the industrial fields of polyester production, chemical industry, pharmaceutical industry, sewage treatment, etc., belt filter presses are often used to filter materials. The filtering effect of belt filters depends on the cleanliness of the filter belt. Therefore, belt filters are usually equipped with filter belt cleaning devices to clean the filter belt in time after filtration to prevent filter belt blockage and extend the life of the filter belt. The current filter belt cleaning solutions mainly include spray washing and immersion washing. The principle of spray washing is to use a high-pressure water gun nozzle to wash the filter belt from both inside and outside, and the principle of immersion washing is to immerse the filter belt in the cleaning agent and use a roller brush to brush it.

[0003] The existing cleaning device of the belt filter adopts spray cleaning and immersion cleaning, which has the problem of large water consumption and large amount of detergent. Spray cleaning and immersion cleaning have poor effects on high-viscosity materials attached to the filter belt, and are prone to clogging of the filter belt and poor filtering effect when working for a long time. Belt filters are mostly used in sewage treatment, river sand filtration and other fields. After using a water gun nozzle to clean the filter belt, the soaked filter belt will not affect the material to be filtered. However, in the fields of chemical industry and pharmaceutical industry, it is necessary to prevent water from affecting the material. Utility Model Content

[0004] The purpose of the utility model is to provide a high-viscosity fluid filtering device to solve the problems of a large amount of residual filter residue on the filter belt after filtration, difficulty in cleaning the filter belt, and a short service life of the filter belt. It is hoped that this solution will make up for the shortcomings of the prior art and solve some or all of the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high-viscosity fluid filtering device, comprising a feed inlet, an upper filter belt, a filter belt cleaning tank A, a pressing roller group, a filtrate collecting tank, a waste outlet, a filter belt cleaning tank B, a filtrate collecting pipeline, a lower filter belt, and a device frame;

[0007] The upper filter belt, filter belt cleaning tank A, pressing roller group, filtrate collection tank, filter belt cleaning tank B, filtrate collection pipeline, and lower filter belt are all arranged within the device frame. Filter belt cleaning tank A is arranged at the upper part of the device frame, filter belt cleaning tank B is arranged at the lower part of the device frame, the pressing roller group is arranged between filter belt cleaning tank A and filter belt cleaning tank B, the filtrate collection tank is arranged between the pressing roller group and filter belt cleaning tank B, one end of the filtrate collection pipeline is connected to the filtrate collection tank, and the other end is connected to the external drain pipe. The upper filter belt passes through the inside of filter belt cleaning tank A and the pressing roller group, and the lower filter belt passes through the inside of filter belt cleaning tank B and the pressing roller group. The upper filter belt and the lower filter belt overlap within the pressing roller group. The feed inlet is arranged above the front part of the device frame, and the waste discharge port is arranged below the rear part of the device frame. The waste discharge port extends below the lower filter belt. The upper filter belt and the lower filter belt are closed-loop belts with a certain width;

[0008] The internal structures of filter belt cleaning tank A and filter belt cleaning tank B are the same, including foam nozzles, roller brushes, high-temperature steam nozzles, and cleaning tank bodies. The foam nozzles, roller brushes, and high-temperature steam nozzles are all arranged inside the cleaning tank body. The foam nozzles are arranged at the inlet end of the cleaning tank body, the high-temperature steam nozzles are arranged at the outlet end of the cleaning tank body, and the roller brushes are arranged between the foam nozzles and the high-temperature steam nozzles.

[0009] In an implementation manner that can optimize the foregoing solution, the pressing roller group includes a number of pressing idlers, and the pressing idlers are arranged vertically staggered. The vertically staggered pressing idlers can extend the length of the pressing section within a limited space and, through the tension of the filter belt, enable the material to complete filtration efficiently.

[0010] In an implementation manner that can optimize the foregoing solution, there are five pressing idlers, namely pressing idler A, pressing idler B, pressing idler C, pressing idler D, and pressing idler E. The five pressing idlers are arranged vertically staggered in sequence, with two pressing idlers above and three pressing idlers below.

[0011] In an implementation manner that can optimize the foregoing solution, it further includes idler A and an upper filter belt scraper. Idler A is arranged at the upper right part of the device frame. The upper filter belt bypasses idler A. The upper filter belt scraper is arranged in cooperation with the position of idler A and presses on the upper filter belt. Idler A is arranged near the inlet end of filter belt cleaning tank A. The upper filter belt scraper scrapes off the filter residues attached to the upper filter belt before the upper filter belt enters filter belt cleaning tank A, facilitating the subsequent cleaning process.

[0012] In an implementation manner that can optimize the foregoing solution, it further includes idler B and a lower filter belt scraper. Idler B is arranged at the lower right part of the device frame. The lower filter belt bypasses idler B. The lower filter belt scraper is arranged in cooperation with the position of idler B and presses on the lower filter belt. Idler B is arranged near the inlet end of filter belt cleaning tank B. The lower filter belt scraper scrapes off the filter residues attached to the lower filter belt before the lower filter belt enters filter belt cleaning tank B, facilitating the subsequent cleaning process.

[0013] In an implementation mode that can optimize the foregoing solution, it further includes a waste water pipe for the cleaning tank. One end of the waste water pipe for the cleaning tank is respectively connected to the filter belt cleaning tank A and the filter belt cleaning tank B, and the other end is connected to an external drain pipe. The filter belt cleaning tank A and the filter belt cleaning tank B share the waste water pipe 17 for the cleaning tank to discharge the waste water in the cleaning tank.

[0014] In an implementation mode that can optimize the foregoing solution, it further includes a turning idler A, a turning idler B, and a turning idler C. The turning idler A is arranged at the upper left part of the device frame, and the upper filter belt bypasses the turning idler A; the turning idler B and the turning idler C are arranged at the front part of the device frame. The turning idler B is placed above the filtrate collection tank, and the turning idler C is placed below the filtrate collection tank. The lower filter belt surrounds the turning idler B and the turning idler C.

[0015] In an implementation mode that can optimize the foregoing solution, the foam nozzles are arranged in two rows and placed at the top and bottom of the cleaning tank body. The two rows of foam nozzles are staggered. The lengths of the two rows of foam nozzles are matched with the width of the filter belt, which can better clean the filter belt.

[0016] In an implementation mode that can optimize the foregoing solution, the roller brushes are in two groups and placed at the top and bottom of the cleaning tank body. The two groups of roller brushes are arranged oppositely, and the two groups of roller brushes are respectively in contact with the upper and lower surfaces of the upper filter belt or the lower filter belt.

[0017] In an implementation mode that can optimize the foregoing solution, the high-temperature steam nozzles are arranged in two rows and placed at the top and bottom of the cleaning tank body. The two rows of high-temperature steam nozzles are staggered. The lengths of the two rows of high-temperature steam nozzles are matched with the width of the filter belt, which can better clean the filter belt.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] A high-viscosity fluid filtering device disclosed by the present utility model uses a combined method of foam cleaning and high-temperature steam cleaning. Compared with the soaking and brushing technology, foam cleaning uses less cleaning agent and has higher economy; compared with the water gun spraying technology, high-temperature steam cleaning uses less water, has high cleaning efficiency, and has less residual water stains after cleaning; placing high-temperature steam cleaning and foam cleaning in a cleaning tank, and using the heat energy generated by the high-temperature steam spray gun to increase the temperature in the cleaning tank, so that the foam cleaning efficiency is higher; the equipment adopts high-temperature steam cleaning technology, and there are few residual water stains on the surface of the filter belt after cleaning, effectively avoiding the influence of water on the material when the filter belt is reused; the staggered pressing idlers further improve the filtering efficiency, and the upper and lower filter belt scrapers before entering the cleaning tank can remove most of the filter residues, effectively reducing the working pressure of the cleaning tank and improving the cleaning efficiency and cleaning effect. Description of the Drawings

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments described in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 This is the sectional view structure diagram of a high-viscosity fluid filtration device described in the present invention;

[0022] Figure 2 This is the perspective view structure diagram of a high-viscosity fluid filtration device described in the present invention;

[0023] Figure 3 This is the sectional view structure diagram of filter belt cleaning tank A or filter belt cleaning tank B described in the present invention;

[0024] Figure 4 This is the perspective view structure diagram of filter belt cleaning tank A or filter belt cleaning tank B described in the present invention.

[0025] Reference numerals

[0026] 1. Feed inlet, 2. Deflection idler A, 3. Upper filter belt, 4. Filter belt cleaning tank A, 5. Squeezing idler A, 6. Squeezing idler B, 7. Squeezing idler C, 8. Squeezing idler D, 9. Squeezing idler E, 10. Idler A, 11. Upper filter belt scraper, 12. Filtrate collection tank, 13. Idler B, 14. Lower filter belt scraper, 15. Waste discharge port, 16. Filter belt cleaning tank B, 17. Waste water pipe of cleaning tank, 18. Filtrate collection pipe, 19. Deflection idler B, 20. Deflection idler C, 21. Lower filter belt, 22. Foam nozzle, 23. Roller brush, 24. High-temperature steam nozzle, 25. Cleaning tank body, 26. Device frame. Detailed implementation manners

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0028] It should be noted that: similar reference numerals represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0029] It should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0030] In addition, terms such as "horizontal", "vertical", "hanging", etc. do not mean that the component is required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0031] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "install", "connect", "couple" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0032] Please refer to Figures 1 to 4 , this embodiment provides a high-viscosity fluid filtration device.

[0033] A high-viscosity fluid filtration device includes a feed inlet 1, an upper filter belt 3, a filter belt cleaning tank A4, a pressing roller group, a filtrate collection tank 12, a waste discharge port 15, a filter belt cleaning tank B16, a filtrate collection pipeline 18, a lower filter belt 21, and a device frame 26;

[0034] The upper filter belt 3, the filter belt cleaning tank A4, the pressing roller group, the filtrate collection tank 12, the filter belt cleaning tank B16, the filtrate collection pipeline 18, and the lower filter belt 21 are all arranged inside the device frame 26. The filter belt cleaning tank A4 is arranged at the upper part of the device frame 26, the filter belt cleaning tank B16 is arranged at the lower part of the device frame 26, the pressing roller group is arranged between the filter belt cleaning tank A4 and the filter belt cleaning tank B16, the filtrate collection tank 12 is arranged between the pressing roller group and the filter belt cleaning tank B16, one end of the filtrate collection pipeline 18 is connected to the filtrate collection tank 12, and the other end is connected to the external drain pipe. The upper filter belt 3 passes through the inside of the filter belt cleaning tank A4 and the pressing roller group, the lower filter belt 21 passes through the inside of the filter belt cleaning tank B16 and the pressing roller group, the upper filter belt 3 and the lower filter belt 21 overlap inside the pressing roller group. The feed inlet 1 is arranged above the front part of the device frame 26, the waste discharge port 15 is arranged below the rear part of the device frame 26, and the waste discharge port 15 extends below the lower filter belt 21. The upper filter belt 3 and the lower filter belt 21 are closed-loop belts with a certain width;

[0035] The internal structures of the filter belt cleaning tank A4 and the filter belt cleaning tank B16 are the same, including a foam nozzle 22, a roller brush 23, a high-temperature steam nozzle 24, and a cleaning tank body 25. The foam nozzle 22, the roller brush 23, and the high-temperature steam nozzle 24 are all arranged inside the cleaning tank body 25. The foam nozzle 22 is arranged at the inlet end of the cleaning tank body 25, the high-temperature steam nozzle 24 is arranged at the outlet end of the cleaning tank body 25, and the roller brush 23 is arranged between the foam nozzle 22 and the high-temperature steam nozzle 24.

[0036] Furthermore, it also includes a cleaning tank waste water pipeline 17. One end of the cleaning tank waste water pipeline 17 is respectively connected to the filter belt cleaning tank A4 and the filter belt cleaning tank B16, and the other end is connected to the external drain pipe.

[0037] For further optimization of the above solution, the pressing roller group includes several pressing idlers, and the pressing idlers are arranged staggered up and down. Preferably, there are five pressing idlers, namely pressing idler A5, pressing idler B6, pressing idler C7, pressing idler D8, and pressing idler E9. The five pressing idlers are arranged staggered up and down in sequence, with two pressing idlers above and three pressing idlers below.

[0038] For further optimization of the above solution, it also includes idler A10 and an upper filter belt scraper 11. Idler A10 is arranged at the upper right part of the device frame 26, the upper filter belt 3 bypasses idler A10, the upper filter belt scraper 11 is matched with the position of idler A10 and presses on the upper filter belt 3. Idler A10 is arranged near the inlet end of the filter belt cleaning tank A4. It also includes idler B13 and a lower filter belt scraper 14. Idler B13 is arranged at the lower right part of the device frame 26, the lower filter belt 21 bypasses idler B13, the lower filter belt scraper 14 is matched with the position of idler B13 and presses on the lower filter belt 21. Idler B13 is arranged near the inlet end of the filter belt cleaning tank B16.

[0039] For further optimization of the above solution, it further includes turning idler A2, turning idler B19, and turning idler C20. The turning idler A2 is arranged at the upper left part of the device frame 26, and the upper filter belt 3 bypasses the turning idler A2; the turning idler B19 and the turning idler C20 are arranged at the front part of the device frame 26. The turning idler B19 is placed above the filtrate collection tank 12, and the turning idler C20 is placed below the filtrate collection tank 12. The lower filter belt 21 surrounds the turning idler B19 and the turning idler C20.

[0040] For further optimization of the above solution, the foam nozzles 22 are in two rows and are placed at the top and bottom of the cleaning tank body 25, and the two rows of foam nozzles 22 are staggered.

[0041] For further optimization of the above solution, the roller brushes 23 are in two groups and are placed at the top and bottom of the cleaning tank body 25. The two groups of roller brushes 23 are arranged oppositely, and the two groups of roller brushes are respectively in contact with the upper and lower surfaces of the upper filter belt or the lower filter belt.

[0042] For further optimization of the above solution, the high-temperature steam nozzles 24 are in two rows and are placed at the top and bottom of the cleaning tank body 25, and the two rows of high-temperature steam nozzles 24 are staggered.

[0043] Working principle:

[0044] The high-viscosity fluid material enters from the feed port 1 and falls on the lower filter belt 21. The lower filter belt 21 rotates clockwise under the action of the tensioning device and the driving device, and drives the material to move forward. Before the material moves with the lower filter belt to the pressing idler A5, it is only affected by gravity, and the filtrate passes through the lower filter belt 21 and enters the filtrate collection tank 12. When the material is sent to the pressing idler A5, the upper filter belt 3 and the lower filter belt 21 jointly squeeze the material for pressure filtration. The pressure filtration process passes through the pressing idler A5, the pressing idler B6, the pressing idler C7, the pressing idler D8, and the pressing idler E9. The filtrate generated by the pressure filtration enters the filtrate collection tank 12. A filtrate collection pipe 18 is provided on the side of the filtrate collection tank 12 for collecting the filtrate. After the pressure filtration process is over, the upper filter belt 3 and the lower filter belt 21 are separated. The upper filter belt scraper 11 and the lower filter belt scraper 14 are respectively pressed on the idler A10 and the idler B13 through torsion springs to scrape off the filter residues remaining on the filter belt, and the filter residues are discharged from the waste discharge port 15. The upper filter belt 3 and the lower filter belt 21 respectively enter the filter belt cleaning tank A4 and the filter belt cleaning tank B16. The filter belt cleaning tank is provided with foam nozzles 22, roller brushes 23, and high-temperature steam nozzles 24. The foam nozzles 22 spray foam cleaning agent on the filter belt, then are fully brushed by the roller brushes 23, and finally the high-temperature steam nozzles 24 clean the filter belt. The filter belt cleaning tank A4 and the filter belt cleaning tank B16 share a cleaning tank waste water pipe 17 for discharging the waste water in the cleaning tank. After the upper filter belt 3 and the lower filter belt 21 are fully brushed, they resume the pressure filtration work.

[0045] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A high viscosity fluid filtering device, characterized in that: It comprises a feed port (1), an upper filter belt (3), a filter belt cleaning tank A (4), a pressing roller group, a filtrate collecting tank (12), a waste outlet (15), a filter belt cleaning tank B (16), a filtrate collecting pipe (18), a lower filter belt (21), and a device frame (26); The upper filter belt (3), the filter belt cleaning tank A (4), the pressing roller group, the filtrate collecting tank (12), the filter belt cleaning tank B (16), the filtrate collecting pipe (18), and the lower filter belt (21) are all arranged in the device frame (26). The filter belt cleaning tank A (4) is arranged at the upper part of the device frame (26), the filter belt cleaning tank B (16) is arranged at the lower part of the device frame (26), the pressing roller group is arranged between the filter belt cleaning tank A (4) and the filter belt cleaning tank B (16), and the filtrate collecting tank (12) is arranged at the lower part of the device frame (26). It is arranged between the pressing roller group and the filter belt cleaning tank B (16), one end of the filtrate collecting pipe (18) is connected to the filtrate collecting tank (12), the upper filter belt (3) passes through the filter belt cleaning tank A (4) and the pressing roller group, the lower filter belt (21) passes through the filter belt cleaning tank B (16) and the pressing roller group, the upper filter belt (3) and the lower filter belt (21) overlap in the pressing roller group, the feed port (1) is arranged at the front of the device frame (26), and the waste outlet (15) is arranged at the rear of the device frame (26); The filter belt cleaning tank A (4) has the same internal structure as the filter belt cleaning tank B (16), comprising a foam nozzle (22), a roller brush (23), a high-temperature steam nozzle (24), and a cleaning tank body (25). The foam nozzle (22), the roller brush (23), and the high-temperature steam nozzle (24) are all arranged inside the cleaning tank body (25). The foam nozzle (22) is arranged at the inlet end of the cleaning tank body (25), the high-temperature steam nozzle (24) is arranged at the outlet end of the cleaning tank body (25), and the roller brush (23) is arranged between the foam nozzle (22) and the high-temperature steam nozzle (24).

2. A high viscosity fluid filtering device according to claim 1, characterized in that: The pressing roller group comprises a plurality of pressing rollers, and the pressing rollers are arranged alternately up and down.

3. A high viscosity fluid filtering device according to claim 2, characterized in that: There are five pressing rollers, namely pressing roller A (5), pressing roller B (6), pressing roller C (7), pressing roller D (8), and pressing roller E (9). The five pressing rollers are arranged in an upper and lower staggered manner, with two pressing rollers on the upper side and three pressing rollers on the lower side.

4. A high viscosity fluid filtering device according to claim 1, characterized in that: The device also includes a roller A (10) and an upper filter belt scraper (11). The roller A (10) is arranged at the upper right part of the device frame (26). The upper filter belt (3) passes over the roller A (10). The upper filter belt scraper (11) cooperates with the roller A (10) and is pressed on the upper filter belt (3).

5. A high viscosity fluid filtering device according to claim 1, characterized in that: The device also includes a roller B (13) and a lower filter belt scraper (14). The roller B (13) is arranged at the lower right part of the device frame (26). The lower filter belt (21) passes around the roller B (13). The lower filter belt scraper (14) cooperates with the roller B (13) and is pressed on the lower filter belt (21).

6. A high viscosity fluid filtering device according to claim 1, characterized in that: It also includes a cleaning tank wastewater pipeline (17), one end of which is connected to the filter belt cleaning tank A (4) and the filter belt cleaning tank B (16).

7. A high viscosity fluid filtering device according to claim 1, characterized in that: The device also includes a steering roller A (2), a steering roller B (19), and a steering roller C (20), wherein the steering roller A (2) is arranged at the upper left part of the device frame (26), and the upper filter belt (3) passes around the steering roller A (2); the steering roller B (19) and the steering roller C (20) are arranged at the front part of the device frame (26), the steering roller B (19) is placed at the upper part of the filtrate collecting tank (12), the steering roller C (20) is placed at the lower part of the filtrate collecting tank (12), and the lower filter belt (21) passes around the steering roller B (19) and the steering roller C (20).

8. The high viscosity fluid filtering device according to claim 1, characterized in that: The foam nozzles (22) are arranged in two rows at the top and bottom of the cleaning tank (25), and the two rows of foam nozzles (22) are arranged in a staggered manner.

9. A high viscosity fluid filtering device according to claim 1, characterized in that: The roller brushes (23) are in two groups, which are placed at the top and bottom of the cleaning tank (25), and the two groups of roller brushes (23) are arranged opposite to each other.

10. The high viscosity fluid filtering device according to claim 1, characterized in that: The high-temperature steam nozzles (24) are arranged in two rows at the top and bottom of the cleaning tank (25), and the two rows of high-temperature steam nozzles (24) are arranged in a staggered manner.

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