Filtering device for thermoplastic elastomer material

Abstract

The utility model provides a filtering device made of thermoplastic elastomer materials, which relates to the field of filtering devices and comprises a filtering box, a feeding hopper is arranged at the upper end of the filtering box, a fan is arranged on the outer wall of one side of the filtering box, the air outlet end of the fan is connected with an air expanding cover, and an air outlet is formed in the inner side end of the air expanding cover. A filter screen and a dust collecting box are arranged on the opposite side of the air outlet, a gathering assembly is arranged at the bottom of the filter box and comprises a gathering plate, a water storage tank is arranged at the lower end of the gathering plate, a settling and filtering assembly is connected to the bottom of the filter box and comprises a settling and filtering box connected with the water storage tank, and a material pushing plate is arranged in the settling and filtering box. The thermoplastic polyurethane elastomer filtering device solves the problems that an existing thermoplastic polyurethane elastomer filtering device still has filtering blockage and the filtering degree is not pure.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, in particular to a filtering device made of thermoplastic elastomer material. Background Art

[0002] Thermoplastic polyurethane elastomer is a new type of organic polymer synthetic material, which is a compound with excellent properties. It can replace rubber and soft polyvinyl chloride material PVC. It has excellent physical properties, such as wear resistance and resilience, which are better than ordinary polyurethane, and aging resistance is better than rubber. It can be said to be the most ideal material to replace PVC and PU, and is known as a new polymer material internationally.

[0003] After searching, the prior art (publication number: CN214914072U) records "a filtering device for the production of thermoplastic polyurethane elastomers, relating to the technical field of thermoplastic polyurethane elastomer production, comprising a circular box with a feed port on its outer surface. The utility model has a reasonable design structure. It can drive the rotating barrel and filter bucket to rotate through a motor. The filter bucket rotates and the raw materials are filtered in the four filter buckets in turn. When one filter bucket gradually rises, the impurities and iron filings inside the filter bucket fall into the collection port along the filter bucket, ensuring the cleanliness of the filter bucket. This solves the problem of impurities accumulating on the filter plate and causing mesh clogging, ensuring the filtration efficiency of the device. The electromagnetic rod is activated to generate magnetic force, which absorbs the iron filings that fall from the filter bucket. When the filtration is completed, the butterfly nut is unscrewed to pull the screw to rotate, pulling the electromagnetic rod out of the rotating barrel. The electromagnetic force of the electromagnetic rod disappears and the iron filings on its surface fall and are collected, allowing the iron filings to be quickly cleaned and collected."

[0004] While existing filtration devices for thermoplastic polyurethane elastomer production have achieved the goal of preventing filter plate clogging, they still have some shortcomings. The filter hoppers involved in existing filtration devices for thermoplastic polyurethane elastomer production are still susceptible to clogging by impurities. This is because impurities first contact the filter hopper during their fall, and the raw material may not have enough time to pass through the filter holes due to the rotational inertia of the filter hopper, and then enter the collection port. Furthermore, only a single filtration process is required, resulting in impure filtration. Furthermore, thermoplastic polyurethane elastomer (TPU) is primarily synthesized from raw materials such as OH-containing oligomer polyols, small molecule chain extenders, and isocyanates. The moisture content of these raw materials significantly affects the properties of TPU. High moisture content in the raw materials can lead to the presence of lighter-than-water impurities in the TPU material. Furthermore, impurities can also be introduced during the production process. For example, improper raw material handling or incomplete cleaning of production equipment during the TPU production process can introduce impurities into the TPU, forming lighter-than-water impurities. Utility Model Content

[0005] In order to overcome the defects of the prior art, a filter device made of thermoplastic elastomer material is provided to solve the problems of filter blockage and impure filtration degree in the existing thermoplastic polyurethane elastomer filter device.

[0006] To achieve the above-mentioned purpose, a filtering device for thermoplastic elastomer material is provided, comprising: a filter box, a feed hopper is provided at the upper end of the filter box, a fan is provided on one outer wall of the filter box, and the air outlet end of the fan is connected to an air diffuser, and the inner end of the air diffuser is provided with an air outlet, and a filter screen and a dust collection box are provided on the opposite side of the air outlet, a gathering component is provided at the bottom of the filter box, and the gathering component includes a gathering plate, and a water storage tank is provided at the lower end of the gathering plate, a sedimentation filter component is connected to the bottom of the filter box, and the sedimentation filter component includes a sedimentation filter box connected to the water storage tank, and a push plate is provided inside the sedimentation filter box.

[0007] Furthermore, a guide hopper is connected to the bottom of the feed hopper, and fan blades are provided inside the guide hopper, and the guide hopper is located on the upper side of the air outlet. At the same time, a water inlet is connected to the lower side of the air outlet and on the outside of the filter box.

[0008] Furthermore, the filter screen is arranged on one side wall of the filter box, and a guide bucket is provided on the outside of the filter screen, and the dust collecting box is connected to the lower side of the guide bucket through a pipeline.

[0009] Furthermore, the gathering assembly also includes a first screw rod and a guide rod placed horizontally inside the filter box, and one end of the first screw rod is connected to the first motor.

[0010] Furthermore, the gathering plate includes a vertical plate and a horizontal plate connected at the lower end, and the guide rod slides through the vertical plate, while the first screw rod is screwed through the vertical plate.

[0011] Furthermore, the outer edges of the vertical plate and the horizontal plate are both provided with sealing strips, and the sealing strips are in sliding contact with the inner wall of the filter box.

[0012] Furthermore, a window is provided on the lower side of the gathering plate and on the rear side wall of the filter box, and a magnetic frame is provided in the water storage tank inside the window.

[0013] Furthermore, the upper end of the filter box is connected to the water storage tank at the bottom of the filter box through an opened feed port, and a second motor is installed at the outer end of the filter box, and the output shaft end of the second motor is connected to a second screw rod, and the second screw rod is horizontally arranged inside the filter box. At the same time, a filter plate is provided on the box wall at the bottom of the filter box, and a water collecting tank is provided at the lower end of the filter plate.

[0014] The beneficial effects of the present invention are:

[0015] 1. During use, the thermoplastic polyurethane elastomer raw material enters the filter box through the feed hopper and the guide hopper. During the falling process, the turned-on fan blows air through the air diffuser and the air outlet, thereby blowing out light impurities and dust through the filter screen, and then gathers through the guide hopper and flows to the dust collecting hopper. The falling raw materials enter the water storage tank at the bottom of the filter box. Since the polyurethane elastomer and iron filings have a greater specific gravity than water, they settle at the bottom of the water tank, while other impurities lighter than water float on the water surface. At the same time, the iron filings are attracted by the magnetic frame in the water tank. Then, by starting the gathering component, the first motor drives the gathering plate to push the floating impurities on the water surface to one side, and then the valve at the bottom of the water tank is opened, so that the water flow and the raw materials enter the sedimentation box together, wherein the water flows through the filter plate into the water collection box, and the raw materials are pushed out from the outlet of the sedimentation box by the second motor and the push plate, and then air-dried or dried by drying equipment.

[0016] 2. Use the fan, air hood and air outlet to blow out the light impurities in the thermoplastic elastomer to achieve the first filtration effect, and then pass through the water tank at the bottom of the filter box to achieve the effect of bottom filtration, so that the impurities and iron filings lighter than water are completely removed, achieving the second filtration effect, thereby improving the purity of the filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of a partial cross-sectional structure of an embodiment of the utility model.

[0018] Figure 2 For the embodiment of the utility model Figure 1 Schematic diagram of the structure at point A in the middle.

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the gathering plate according to an embodiment of the present utility model.

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the sedimentation box according to an embodiment of the present utility model.

[0021] In the figure: 1. Filter box; 11. Feed hopper; 12. Fan blade; 13. Diversion hopper; 14. Guide hopper; 15. Filter screen; 16. Dust collection box; 17. Window; 18. Water inlet; 19. Fan; 191. Air diffuser; 192. Air outlet; 2. Gathering assembly; 21. First motor; 22. First screw rod; 23. Guide rod; 24. Gathering plate; 241. Vertical plate; 242. Horizontal plate; 243. Sealing strip; 3. Sedimentation filter assembly; 31. Sedimentation filter box; 311. Feed inlet; 312. Filter plate; 32. Second motor; 33. Pushing plate; 34. Second screw rod; 35. Water collection box. DETAILED DESCRIPTION

[0022] Reference Figures 1 to 4As shown, the utility model provides a filtering device for thermoplastic elastomer material, comprising: a filter box 1, a feed hopper 11 is provided at the upper end of the filter box 1, a fan 19 is provided on the outer wall of one side of the filter box 1, and the air outlet end of the fan 19 is connected to an air diffuser 191, and the inner end of the air diffuser 191 is provided with an air outlet 192, and a filter screen 15 and a dust collection box 16 are provided on the opposite side of the air outlet 192, a gathering component 2 is provided at the bottom of the filter box 1, and the gathering component 2 includes a gathering plate 24, and a water storage tank is provided at the lower end of the gathering plate 24, and the filter box 1 The bottom of the filter box 1 is connected to a filtration assembly 3, and the filtration assembly 3 includes a filtration box 31 connected to the water storage tank, and a push plate 33 is provided inside the filtration box 31. The upper end of the filtration box 31 is connected to the water storage tank at the bottom of the filter box 1 through an opened feed port 311, and a second motor 32 is installed at the outer end of the filtration box 31, and the output shaft end of the second motor 32 is connected to a second screw rod 34, and the second screw rod 34 is horizontally arranged inside the filtration box 31. At the same time, a filter plate 312 is provided on the box wall at the bottom of the filtration box 31, and a water collecting box 35 is provided at the lower end of the filter plate 312.

[0023] In this embodiment, the filter box 1, the gathering assembly 2 and the sedimentation assembly 3 constitute the main structure of the filter device made of thermoplastic elastomer material involved in this application.

[0024] Specifically, the wind force of the fan 19 is set to not blow the thermoplastic polyurethane elastomer raw material during the falling process, that is, the raw material falls freely downward or falls freely downward in a certain arc, while light impurities and dust move to the side of the filter 15.

[0025] Specifically, the edges of the push plate 33 are slidably connected to the inner wall of the sedimentation box 31, and the push plate 33 is guided and limited during movement. At the same time, a discharge port is opened at one end of the sedimentation box 31 away from the second motor 32.

[0026] Specifically, the filter holes inside the filter plate 312 do not allow the raw materials to pass through, and only allow water to flow downward, thereby achieving separation of the raw materials and water.

[0027] like Figure 1 In the figure, a guide hopper 13 is connected to the bottom of the feed hopper 11, and a fan blade 12 is provided inside the guide hopper 13, and the guide hopper 13 is located on the upper side of the air outlet 192. At the same time, a water inlet 18 is connected to the lower side of the air outlet 192 and on the outside of the filter box 1. The filter screen 15 is arranged on one side of the box wall of the filter box 1, and a guide hopper 14 is provided on the outside of the filter screen 15, and the dust collecting box 16 is connected to the lower side of the guide hopper 14 through a pipe.

[0028] Specifically, the fan blade 12 includes a rotating shaft with front and rear ends connected to the inner wall of the filter box 1, and fan blades arranged on the outer wall of the rotating shaft.

[0029] As a preferred embodiment, by providing the fan blades 12, the falling raw materials are allowed to collide with the fan blades 12 and rotate, thereby breaking up the falling raw materials and dispersing them to be evenly filtered by the air.

[0030] Specifically, the guide bucket 14 is configured as a horizontal bucket-shaped structure with a smooth inner wall, so that the collected light impurities and dust can flow downward through the pipeline into the dust collecting box 16 .

[0031] like Figure 2 、 Figure 3 and Figure 4 In the figure, the gathering component 2 also includes a first screw rod 22 and a guide rod 23 placed horizontally inside the filter box 1, and one end of the first screw rod 22 is connected to the first motor 21, and the gathering plate 24 includes a vertical plate 241 and a horizontal plate 242 connected at the lower end, and the guide rod 23 slides through the vertical plate 241, and at the same time the first screw rod 22 is screwed through the vertical plate 241, and the outer edges of the vertical plate 241 and the horizontal plate 242 are both provided with a sealing strip 243, and the sealing strip 243 is in sliding contact with the inner wall of the filter box 1, and a window 17 is opened on the lower side of the gathering plate 24 and on the rear side wall of the filter box 1, and a magnetic frame is provided in the water storage tank inside the window 17.

[0032] Specifically, the gathering plate 24 is configured as an L-shaped structure as a whole, and the horizontal plate 242 is submerged in the water of the water tank, so that floating objects on the water surface can be pushed to one side when moving, thereby preventing impurities from entering the sedimentation box 31 with the water flow when waterproofing.

[0033] During use, the thermoplastic polyurethane elastomer raw material enters the filter box through the feed hopper and the guide hopper. During the falling process, the turned-on fan blows air through the air diffuser and the air outlet, thereby blowing out light impurities and dust through the filter, and then gathers through the guide hopper and flows to the dust collecting hopper. The falling raw materials enter the water storage tank at the bottom of the filter box. Since the specific gravity of polyurethane elastomer and iron filings is greater than that of water, they are settled at the bottom of the water tank, while other impurities lighter than water float on the water surface. At the same time, the iron filings are adsorbed by the magnetic frame in the water tank, and then by starting the gathering component, the first motor drives the gathering plate to push the floating impurities on the water surface to one side, and then the valve at the bottom of the water tank is opened, so that the water flow and the raw materials enter the sedimentation box together, wherein the water flows through the filter plate into the water collection tank, and the raw materials are pushed out from the outlet of the sedimentation box through the second motor and the pushing plate, and then can be air-dried or dried by drying equipment.

[0034] The filter device for thermoplastic elastomer materials of the utility model can effectively solve the problems of filter blockage and impure filtration degree still existing in existing thermoplastic polyurethane elastomer filter devices. It is realized on the basis of the existing technology of filter devices for thermoplastic elastomer materials, avoids the problem of blockage of raw materials and impurities caused by the use of filter plates, and achieves a double filtration effect, thereby improving the filtration purity.

Claims

1. A filtering device for a thermoplastic elastomer material, comprising: A filter box (1), wherein the upper end of the filter box (1) is provided with a feed hopper (11), characterized in that: a fan (19) is provided on an outer wall of one side of the filter box (1), and the air outlet end of the fan (19) is connected to an air diffuser (191), and the inner end of the air diffuser (191) is provided with an air outlet (192), and a filter screen (15) and a dust collecting box (16) are provided on the opposite side of the air outlet (192), a gathering component (2) is provided at the bottom of the filter box (1), and the gathering component (2) includes a gathering plate (24), and a water storage tank is provided at the lower end of the gathering plate (24), and a sediment filter component (3) is connected to the bottom of the filter box (1), and the sediment filter component (3) includes a sediment filter box (31) connected to the water storage tank, and a push plate (33) is provided inside the sediment filter box (31).

2. A filtering device for thermoplastic elastomer material according to claim 1, characterized in that: The bottom of the feed hopper (11) is connected to a flow guide hopper (13), and a fan blade (12) is provided inside the flow guide hopper (13). The flow guide hopper (13) is located on the upper side of the air outlet (192), and a water inlet (18) is connected to the lower side of the air outlet (192) and the outer side of the filter box (1).

3. The filtering device of thermoplastic elastomer material according to claim 1, characterized in that: The filter screen (15) is arranged on a side wall of the filter box (1), and a guide bucket (14) is provided on the outside of the filter screen (15), and the dust collecting box (16) is connected to the lower side of the guide bucket (14) through a pipeline.

4. The filtering device of thermoplastic elastomer material according to claim 1, characterized in that: The gathering assembly (2) further comprises a first screw rod (22) and a guide rod (23) which are horizontally arranged inside the filter box (1), and one end of the first screw rod (22) is connected to a first motor (21).

5. The filtering device of thermoplastic elastomer material according to claim 1, characterized in that: The gathering plate (24) comprises a vertical plate (241) and a horizontal plate (242) connected at the lower end, and the guide rod (23) slides through the vertical plate (241), while the first screw rod (22) is screwed through the vertical plate (241).

6. A filtering device for thermoplastic elastomer material according to claim 5, characterized in that: The outer edges of the vertical plate (241) and the horizontal plate (242) are both provided with sealing strips (243), and the sealing strips (243) are in sliding contact with the inner wall of the filter box (1).

7. The filtering device of thermoplastic elastomer material according to claim 1, characterized in that: A window (17) is provided on the lower side of the gathering plate (24) and on the rear side wall of the filter box (1), and a magnetic frame is provided in the water storage tank inside the window (17).

8. The filtering device of thermoplastic elastomer material according to claim 1, characterized in that: The upper end of the filter box (31) is connected to the water storage tank at the bottom of the filter box (1) through an opened feed port (311), and a second motor (32) is installed at the outer end of the filter box (31), and the output shaft end of the second motor (32) is connected to a second screw rod (34), and the second screw rod (34) is horizontally arranged inside the filter box (31). At the same time, a filter plate (312) is provided on the box wall at the bottom of the filter box (31), and a water collecting box (35) is provided at the lower end of the filter plate (312).

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