A raw material filtering device and filtering process for nylon production

Abstract

The present invention relates to the technical field of nylon production devices, and discloses a raw material filtering device and a filtering process for nylon production, including a main filtering box body. A support sleeve ring frame is fixedly sleeved on the surface of the main filtering box body near the bottom position. A dust suction component is fixedly connected to one side position of the surface of the main filtering box body. Communication hoses are provided on both sides of the dust suction component away from the surface of the main filtering box body. By providing a filtering support, a split-type filter screen, a distillation filtering frame, and an electric heating net, impurities inside the raw materials for nylon production are removed, thereby improving the quality of subsequent nylon production, avoiding the appearance of bubbles, fractures, or unevenness in the finished product caused by solid particles inside the raw materials, and at the same time preventing impurity particles in caprolactam from causing wear or blockage to the nylon production equipment, increasing the service life of the nylon production equipment and the production efficiency of nylon.

Description

Technical Field

[0001] The present invention relates to the technical field of nylon production devices, and more particularly to a raw material filtering device and a filtering process for nylon production. Background Art

[0002] Nylon is the first synthetic fiber to be widely used. Nylon can be divided into different types according to its chemical structure and composition, such as "Nylon 6, Nylon 66, Nylon 610", etc. Among them, the raw material for Nylon 6 production is caprolactam. When producing Nylon 6, it is necessary to first carry out a polymerization reaction on its raw material caprolactam, and form the polymerized nylon raw material into a molten state. Next, it is extruded through a die by an extruder into the required shape. Finally, the extruded Nylon 6 is cooled and cut into small particles. However, during the production process of the raw material caprolactam, especially during the synthesis of caprolactam, there may be some unreacted raw materials, reaction by-products, or solid particles generated due to improper process operations;

[0003] In the subsequent nylon production, the solid particles inside caprolactam may cause bubbles, fractures, or unevenness in the finished product, thereby affecting the mechanical properties and durability of Nylon 6. Moreover, the impurity particles in caprolactam may cause wear or blockage to the nylon production equipment, especially the pipes and reactors during melt extrusion or polymerization reactions, and may even interrupt the production process, thereby reducing the service life of the nylon production equipment and the production efficiency of nylon. In addition, during the synthesis of caprolactam, a solvent is generally added to ensure the smooth progress of the reaction. However, after the reaction, the solvent is often no longer useful and may be mixed with the reaction product caprolactam. The purity of the caprolactam mixed with the solvent will be affected, thereby reducing the quality of the produced nylon;

[0004] Therefore, we propose a raw material filtering device and a filtering process for nylon production to solve the problems raised above. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a raw material filtering device and a filtering process for nylon production to solve the technical problems raised in the background art.

[0006] To achieve the above object, the present invention provides the following technical solutions: A raw material filtering device and filtering process for nylon production, including a main filtering box body, a support collar frame fixedly sleeved on the surface of the main filtering box body near the bottom position, a dust suction member fixedly connected to one side position of the surface of the main filtering box body, communication hoses are provided on both sides of the dust suction member away from the surface of the main filtering box body, a filtering support fixedly sleeved on the surface of the main filtering box body near the top position, plugging slide plates are movably connected to both sides inside the filtering support, dust collection boxes are movably connected to both sides of the top of the filtering support, a feed rack is movably connected to the adjacent side surface of the dust collection box, the feed rack is fixedly connected to the middle position of the filtering support, a split filter screen is movably connected inside the main filtering box body near the top position, a distillation filtering rack is provided inside the main filtering box body near the bottom position, a distillation recovery barrel is provided at the center position of the distillation filtering rack, a raw material discharge pipe is provided on one side of the surface of the main filtering box body and at the top position of the fixedly sleeved support collar frame, and a distillation recovery pipe is provided at the bottom position of the main filtering box body.

[0007] By providing a filtering support, a split filter screen, and a distillation filtering rack, it is beneficial to filter the nylon raw materials through the split filter screen inside the filtering support before nylon production, and distill and purify the internally mixed solution of the filtered nylon raw materials through the distillation filtering rack, so as to ensure the removal of impurities inside the raw materials for nylon production, thereby improving the quality of subsequent nylon production, avoiding the appearance of bubbles, fractures, or unevenness in the finished product caused by solid particles inside the raw materials, and at the same time avoiding the wear or blockage of the nylon production equipment caused by impurity particles in the raw material caprolactam, increasing the service life of the nylon production equipment and the production efficiency of nylon.

[0008] In a preferred embodiment, dust removal cavities are provided at the positions where the filtering support is movably connected to the plugging slide plates, magnet installation grooves are provided on both sides of the top of the filtering support, installation magnets are provided in the magnet installation grooves, regularly arranged dust collection holes are provided at the positions where the dust collection boxes are movably connected to the top of the filtering support, a filtering cavity is provided in the middle of the filtering support, an annular groove is provided on the inner wall of the filtering cavity near the bottom position, and neatly arranged cleaning brushes are provided at the bottom position of the annular groove. By providing the dust removal cavity and the cleaning brushes, it is beneficial to clean the impurities inside the filter screen holes with the cleaning brushes after filtering the nylon raw materials, avoiding the blockage of the filter screen holes by impurities, and collecting the impurities on the surface of the filter screen when the filter screen enters the dust removal cavity, avoiding the impurities on the surface of the filter screen from affecting the subsequent filtering effect.

[0009] In a preferred embodiment, a dust collection cavity is provided inside the dust collection box. An activity clamping plate is movably sleeved at the bottom of the dust collection box. A conical dust guiding hole is provided on the surface of the activity clamping plate. One end of the connecting hose away from the dust suction member is movably connected to one side of the surface of the dust collection box. By providing the activity clamping plate and the conical dust guiding hole, when the filtered impurities are collected into the dust collection cavity, due to the external shape structure of the conical dust guiding hole, it is possible to prevent the entering impurities from entering the top of the filter screen again.

[0010] In a preferred embodiment, a handle is fixedly connected to the side of the plugging slide plate away from the feeding rack. One side surface of the plugging slide plate away from the handle is fixedly connected to one side of the split filter screen. A filter groove is provided at the top of the split filter screen. A row of neatly arranged circular through holes is provided at the bottom of the filter groove. By providing the filter groove and the plugging slide plate, after filtering the nylon raw material, the filtered impurities can be collected through the filter groove, and through the plugging slide plate, when the impurities in the filter groove are collected for dust collection, it is possible to prevent external air from entering and affecting the dust collection effect.

[0011] In a preferred embodiment, a filter cavity is provided inside the filter box body. A flow guiding conical plate is fixedly connected inside the filter box body and near the top. A row of neatly arranged liquid inlet groove holes is provided at the top of the inner wall of the filter cavity at the position where the flow guiding conical plate is fixedly connected. A connecting cavity is provided inside the filter box body at the position where the liquid inlet groove holes are provided. An outlet liquid groove hole is provided at the bottom of the inner wall of the filter cavity at the position of the flow guiding conical plate. The liquid inlet groove holes and the outlet liquid groove holes are interconnected through the connecting cavity. A recovery flow guiding cone is provided at the center of the bottom of the flow guiding conical plate. By providing the liquid inlet groove holes, the connecting cavity, the outlet liquid groove holes, the flow guiding conical plate, and the recovery flow guiding cone, it is beneficial to guide the nylon raw material after primary filtration to the inside of the liquid inlet groove holes through the flow guiding conical plate, and through the connecting cavity and the outlet liquid groove holes, the initially filtered raw material enters the inside of the distillation filter rack, so that the raw material is further distilled and purified, and through the recovery flow guiding cone, the solution that has become vapor is guided and collected, preventing the separated solution from entering the raw material again.

[0012] In a preferred embodiment, a distillation groove is provided near the inner wall of the filter box body on the distillation filter rack. An electric heating mesh is provided inside the distillation filter rack near the periphery. A distillation recovery cavity is provided inside the distillation recovery barrel. A pipeline connection hole is provided at the bottom of the distillation recovery cavity. One end of the pipeline connection hole is fixedly connected to one end of the distillation recovery pipe. By providing the electric heating mesh and the distillation recovery barrel, it is beneficial to accurately control the temperature of the raw material through the electric heating mesh, and through the distillation recovery barrel, the solution distilled from the raw material is collected and reused, preventing waste of resources.

[0013] The technical effects and advantages of the present invention:

[0014] The present invention is provided with a filter support, a split-type filter screen, a distillation filter rack, and an electric heating grid, which is beneficial to filtering nylon raw materials through the split-type filter screen inside the filter support before nylon production, and distilling and purifying the internally mixed solution of the filtered nylon raw materials through the distillation filter rack and the electric heating grid, so as to ensure the removal of internal impurities in the raw materials for nylon production, thereby improving the quality of subsequent nylon production, avoiding bubbles, fractures, or unevenness in the finished product caused by solid particles inside the raw materials, and at the same time avoiding wear or blockage of the nylon production equipment caused by impurity particles in caprolactam, increasing the service life of the nylon production equipment and the production efficiency of nylon;

[0015] The present invention is provided with a filter box body, a filter support, a split-type filter screen, a distillation filter rack, and an electric heating grid, which is beneficial to reducing the manual operation steps and the labor intensity of workers when filtering the raw materials for nylon production, while increasing the filtering efficiency and quality of the nylon production raw materials, avoiding insufficient filtering of the raw materials caused by human errors, and further improving the purity of the nylon production raw materials;

[0016] The present invention is provided with a plugging slide plate, a filter support, a dust suction component, a dust collection box, and a split-type filter screen, which is beneficial to driving the split-type filter screen into the dust removal cavity through the plugging slide plate after filtering the nylon production raw materials, so that the circular through holes opened on the split-type filter screen are cleaned by cleaning brushes, avoiding blockage of the circular through holes by impurities, and adsorbing the impurities cleaned inside the filter tank into the dust collection box for subsequent processing under the operation of the dust suction component, ensuring the cleanliness of the surface of the split-type filter screen, preventing it from affecting the subsequent filtering use of the split-type filter screen, and improving the reliability of the filtering device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention.

[0018] Figure 2 It is a schematic view of the overall structure of the present invention.

[0019] Figure 3 It is a schematic cross-sectional view of the filter support structure of the present invention.

[0020] Figure 4 It is a schematic view of the dust collection box structure of the present invention.

[0021] Figure 5 It is a schematic view of the plugging slide plate structure of the present invention.

[0022] Figure 6 It is a schematic cross-sectional view of the filter box body structure of the present invention.

[0023] The reference numerals are: 1. main body of the filtration box; 101. filtration inner cavity; 102. liquid inlet groove hole; 103. communication inner cavity; 104. liquid outlet groove hole; 2. support collar frame; 3. dust suction member; 4. communication hose; 5. filtration support; 501. dust removal inner cavity; 502. magnet mounting groove; 503. dust collection hole; 504. filtration cavity; 505. annular groove; 506. cleaning brush; 6. plugging slide plate; 601. handle; 7. dust collection box; 701. dust collection inner cavity; 702. movable clamping plate; 703. conical dust guiding hole; 8. feeding rack; 9. split filter screen; 901. filtration tank; 902. circular through hole; 10. distillation filtration rack; 1001. distillation tank; 11. distillation recovery barrel; 1101. distillation recovery cavity; 1102. pipe connection hole; 12. raw material discharge pipe; 13. distillation recovery pipe; 14. mounting magnet; 15. electric heating mesh; 16. diversion cone plate; 17. recovery diversion cone. Detailed implementation mode

[0024] The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the respective structures described in the following embodiments are merely examples. A raw material filtration device and filtration process for nylon production involved in the present invention are not limited to the respective structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0025] Refer to Figures 1-6 As shown, the present invention provides a raw material filtration device and filtration process for nylon production, including a main body 1 of the filtration box. It is characterized in that: a support collar frame 2 is fixedly sleeved on the surface of the main body 1 of the filtration box near the bottom position, a dust suction member 3 is fixedly connected to one side position of the surface of the main body 1 of the filtration box, communication hoses 4 are provided on both sides of the dust suction member 3 far away from the surface of the main body 1 of the filtration box, a filtration support 5 is fixedly sleeved on the surface of the main body 1 of the filtration box near the top position, plugging slide plates 6 are movably connected to both sides inside the filtration support 5, dust collection boxes 7 are movably connected to both sides at the top of the filtration support 5, a feeding rack 8 is movably connected to the adjacent side surface of the dust collection box 7, the feeding rack 8 is fixedly connected to the middle position of the filtration support 5, a split filter screen 9 is movably connected inside the main body 1 of the filtration box near the top position, a distillation filtration rack 10 is provided inside the main body 1 of the filtration box near the bottom position, a distillation recovery barrel 11 is provided at the center of the distillation filtration rack 10, a raw material discharge pipe 12 is provided on one side of the surface of the main body 1 of the filtration box and at the top position of the fixedly sleeved support collar frame 2, and a distillation recovery pipe 13 is provided at the bottom position of the main body 1 of the filtration box.

[0026] In this embodiment, by providing a filtering support 5, a split-type filter screen 9, and a distillation filtering rack 10, it is beneficial to filter nylon raw materials through the split-type filter screen 9 inside the filtering support 5 before nylon production, and to distill and purify the internally mixed solution of the filtered nylon raw materials through the distillation filtering rack 10, so as to ensure the removal of internal impurities in the nylon production raw materials, thereby improving the quality of subsequent nylon production, avoiding bubbles, fractures, or unevenness in the finished product caused by solid particles inside the raw materials, and at the same time avoiding wear or blockage of the nylon production equipment by impurity particles in the raw material caprolactam, increasing the service life of the nylon production equipment and the production efficiency of nylon.

[0027] Refer to Figure 3 As shown in the figure, dust removal cavities 501 are provided at the positions where the filtering support 5 is movably connected to the plugging slide plate 6. Magnet installation grooves 502 are provided on both sides of the top of the filtering support 5. Installation magnets 14 are provided in the magnet installation grooves 502. Regularly arranged dust collection holes 503 are provided at the positions where the filtering support 5 is movably connected to the dust collection box 7 at the top. A filtering cavity 504 is provided in the middle of the filtering support 5. An annular groove 505 is provided on the inner wall of the filtering cavity 504 near the bottom. Regularly arranged cleaning brushes 506 are provided at the bottom of the annular groove 505.

[0028] In this embodiment, by providing the dust removal cavity 501 and the cleaning brush 506, it is beneficial to clean the impurities inside the filter holes of the filter screen through the cleaning brush 506 after filtering the nylon raw materials, avoiding blockage of the filter holes by impurities, and collecting the impurities on the surface of the filter screen when the filter screen enters the dust removal cavity 501, avoiding the impurities on the surface of the filter screen from affecting the subsequent filtering effect.

[0029] Refer to Figure 4 As shown in the figure, a dust collection cavity 701 is provided inside the dust collection box 7. A movable clamping plate 702 is movably sleeved at the bottom of the dust collection box 7. A tapered dust guiding hole 703 is provided on the surface of the movable clamping plate 702. One end of the connecting hose 4 far from the dust suction component 3 is movably connected to one side of the surface of the dust collection box 7.

[0030] In this embodiment, by providing the movable clamping plate 702 and the tapered dust guiding hole 703, it is beneficial to prevent the entering impurities from entering the top of the filter screen again due to the external shape structure of the tapered dust guiding hole 703 when collecting the filtered impurities into the dust collection cavity 701.

[0031] Refer to Figure 5As shown in the figure, a handle 601 is fixedly connected to one side of the plugging slide plate 6 away from the feeding rack 8. One side surface of the plugging slide plate 6 away from the handle 601 is fixedly connected to one side of the split filter screen 9. A filter slot 901 is provided at the top position of the split filter screen 9, and neatly arranged circular through holes 902 are provided at the bottom position of the filter slot 901.

[0032] In this embodiment: By providing the filter slot 901 and the plugging slide plate 6, it is beneficial to collect the filtered impurities through the filter slot 901 after filtering the nylon raw materials, and through the plugging slide plate 6, when collecting the dust in the filter slot 901, it can prevent external air from entering and affecting the dust collection effect.

[0033] Refer to Figure 6 As shown in the figure, a filter inner cavity 101 is provided inside the filter box main body 1. A flow guiding conical plate 16 is fixedly connected to the inside of the filter box main body 1 and near the top position. Neatly arranged liquid inlet groove holes 102 are provided at the top of the inner wall of the filter inner cavity 101 at the position where the flow guiding conical plate 16 is fixedly connected. A communication inner cavity 103 is provided inside the filter box main body 1 at the position where the liquid inlet groove holes 102 are provided. Liquid outlet groove holes 104 are provided at the bottom of the inner wall of the filter inner cavity 101 at the position of the flow guiding conical plate 16. The liquid inlet groove holes 102 and the liquid outlet groove holes 104 are interconnected through the communication inner cavity 103. A recovery flow guiding cone 17 is provided at the center position of the bottom of the flow guiding conical plate 16.

[0034] In this embodiment: By providing the liquid inlet groove holes 102, the communication inner cavity 103, the liquid outlet groove holes 104, the flow guiding conical plate 16, and the recovery flow guiding cone 17, it is beneficial to guide the nylon raw materials after primary filtration to the inside of the liquid inlet groove holes 102 through the flow guiding conical plate 16, and through the communication inner cavity 103 and the liquid outlet groove holes 104, the initially filtered raw materials enter the inside of the distillation and filtration rack 10, enabling the raw materials to be further distilled and purified, and through the recovery flow guiding cone 17, the solution that has become vapor is guided and collected to prevent the separated solution from entering the raw materials again.

[0035] Refer to [[ID=IS]] Figure 6 As shown in the figure, a distillation slot 1001 is provided at the position of the distillation and filtration rack 10 close to the inner wall of the filter box main body 1. An electric heating grid 15 is provided inside the distillation and filtration rack 10 and near the peripheral edge. A distillation recovery cavity 1101 is provided inside the distillation recovery barrel 11. A pipe connection hole 1102 is provided at the bottom position of the distillation recovery cavity 1101. One end of the pipe connection hole 1102 is fixedly connected to one end of the distillation recovery pipe 13.

[0036] In this embodiment: By providing the electric heating grid 15 and the distillation recovery barrel 11, it is beneficial to precisely control the temperature of the raw materials through the electric heating grid 15, and through the distillation recovery barrel 11, the distilled solution inside the raw materials can be collected and reused to prevent waste of resources.

[0037] Working principle of the present invention:

[0038] S1. First, when preparing to filter the production raw materials of nylon, the raw materials are first injected through the top position of the feeding rack 8, so that the raw materials enter the internal position of the filtration cavity 504 opened in the filtration support 5 through the feeding rack 8. Then, the raw materials are initially filtered through the split filter screen 9 movably connected inside the filtration cavity 504, and the solid particle impurities inside the raw materials are blocked at the circular through hole 902 opened in the filtration groove 901. Then, the initially filtered raw materials enter the internal position of the filtration inner cavity 101 opened in the filtration box main body 1 through the split filter screen 9. Then, the raw materials are blocked by the diversion cone plate 16 fixedly connected inside the filtration inner cavity 101, so that the raw materials flow to the liquid inlet groove hole 102 opened on the inner wall of the filtration inner cavity 101. Then, the raw materials entering the liquid inlet groove hole 102 reach the liquid outlet groove hole 104 through the communication inner cavity 103, and then flow out through the liquid outlet groove hole 104 to the distillation groove 1001 opened at the top of the distillation filtration rack 10. At this time, the electric heating mesh 15 inside the distillation filtration rack 10 is electrified, so that the electric heating mesh 15 generates heat to heat the raw materials inside the distillation groove 1001. Then, the solvent vapor generated by heating rises to the bottom position of the diversion cone plate 16, and then the solution gradually cooled and liquefied after being blocked by the diversion cone plate 16 is guided by the recovery diversion cone 17 and dripped into the internal position of the distillation recovery barrel 11 opened in the middle of the distillation filtration rack 10 for collection. Then, after the raw material filtration and distillation are completed, at this time, the filtered and purified raw materials are discharged by opening the raw material discharge pipe 12, and then the solvent collected inside the distillation recovery cavity 1101 is recovered by opening the distillation recovery pipe 13;

[0039] S2. Then, after the raw material filtration is completed, pull the plugging slide plate 6 inside the dust removal inner cavity 501 opened in the filter support 5 at this time, so that the grip 601 drives the plugging slide plate 6 and the split filter screen 9 to move into the dust removal inner cavity 501. Then, when the split filter screen 9 moves, the cleaning brush 506 opened inside the annular groove 505 will clean the bottom of the split filter screen 9 at this time, so that the cleaning brush 506 pushes the impurities blocked inside the circular through hole 902 into the filter groove 901. Then, when the split filter screen 9 completely enters the dust removal inner cavity 501, stop pulling the plugging slide plate 6 at this time, and then turn on the dust suction component 3 on one side of the filter box body 1, so that the dust suction component 3 operates and adsorbs the air inside the dust collection inner cavity 701 opened in the dust collection box 7 through the connecting hose 4. Then, a negative pressure is formed inside the dust collection inner cavity 701, so that the dust collection inner cavity 701 adsorbs the impurities inside the filter groove 901 through the conical dust guiding hole 703 and the dust collection hole 503, and the impurities enter the position inside the dust collection inner cavity 701 for collection. Then, after cleaning the split filter screen 9, it can be reset. Then, after the dust collection box 7 performs the dust collection operation multiple times, pull out the connecting hose 4 on one side of the dust collection box 7 at this time, then pull the dust collection box 7 away from the top position of the filter support 5, then pull out the movable clamping plate 702 at the bottom of the dust collection box 7, then pour out the impurities inside the dust collection inner cavity 701, then reset the movable clamping plate 702 and place it back on the top position of the filter support 5, and make the mounting magnet 14 inside the magnet mounting groove 502 adsorb and fix the bottom of the dust collection box 7 to complete.

[0040] Finally, the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A raw material filtering device for nylon production, comprising a main filtering box body (1), characterized in that: A support collar frame (2) is fixedly sleeved on the surface of the main filtering box body (1) near the bottom position. A dust suction member (3) is fixedly connected to one side of the surface of the main filtering box body (1). Connecting hoses (4) are provided on both sides of the dust suction member (3) away from the surface of the main filtering box body (1). A filtering support (5) is fixedly sleeved on the surface of the main filtering box body (1) near the top position. Sealing sliding plates (6) are movably connected to both sides inside the filtering support (5). Dust collection boxes (7) are movably connected to both sides of the top of the filtering support (5). A feeding frame (8) is movably connected to the adjacent side surface of the dust collection box (7). The feeding frame (8) is fixedly connected to the middle position of the filtering support (5). A split filter screen (9) is movably connected inside the main filtering box body (1) near the top position. A distillation filtering frame (10) is provided inside the main filtering box body (1) near the bottom position. A distillation recovery barrel (11) is provided at the center of the distillation filtering frame (10). A raw material discharge pipe (12) is provided on one side of the surface of the main filtering box body (1) at the top of the fixedly sleeved support collar frame (2). A distillation recovery pipe (13) is provided at the bottom of the main filtering box body (1). A filtering inner cavity (101) is provided inside the main filtering box body (1). A flow guiding conical plate (16) is fixedly connected inside the main filtering box body (1) near the top position. Neatly arranged liquid inlet groove holes (102) are provided at the top of the inner wall of the filtering inner cavity (101) at the position of the fixedly connected flow guiding conical plate (16). A connecting inner cavity (103) is provided inside the main filtering box body (1) at the position of the liquid inlet groove holes (102). Liquid outlet groove holes (104) are provided at the bottom of the inner wall of the filtering inner cavity (101) at the position of the flow guiding conical plate (16). The liquid inlet groove holes (102) and the liquid outlet groove holes (104) are interconnected through the connecting inner cavity (103). A recovery flow guiding cone (17) is provided at the center of the bottom of the flow guiding conical plate (16). A distillation groove (1001) is provided near the inner wall of the main filtering box body (1) on the distillation filtering frame (10). Electric heating grids (15) are provided inside the distillation filtering frame (10) near the peripheral edges. A distillation recovery cavity (1101) is provided inside the distillation recovery barrel (11). A pipeline connection hole (1102) is provided at the bottom of the distillation recovery cavity (1101). The pipeline connection hole (1102) is fixedly connected to one end of the distillation recovery pipe (13).

2. The raw material filtering device for nylon production according to claim 1, characterized in that: The dust removal cavities (501) are provided at the positions where the filter brackets (5) are located at the movable connection plugging slide plates (6). Magnet mounting grooves (502) are provided at both sides of the top of the filter brackets (5). Mounting magnets (14) are provided at the positions of the magnet mounting grooves (502). Regularly arranged dust collection holes (503) are provided at the positions where the filter brackets (5) are located at the movable connection dust collection boxes (7) at the top. A filter cavity (504) is provided at the middle position of the filter brackets (5). An annular groove (505) is provided on the inner wall of the filter cavity (504) near the bottom. Neatly arranged cleaning brushes (506) are provided at the bottom of the annular groove (505).

3. The raw material filtering device for nylon production according to claim 2, wherein: A dust collection cavity (701) is provided inside the dust collection box (7). A movable clamping plate (702) is movably sleeved at the bottom of the dust collection box (7). A conical dust guiding hole (703) is provided on the surface of the movable clamping plate (702). One end of the connecting hose (4) far away from the dust suction component (3) is movably connected to one side surface of the dust collection box (7).

4. A raw material filtering device for nylon production according to claim 3, characterized in that: A handle (601) is fixedly connected to one side of the plugging slide plate (6) far away from the feeding rack (8). One side surface of the plugging slide plate (6) far away from the handle (601) is fixedly connected to one side of the split filter net (9). A filter slot (901) is provided at the top of the split filter net (9). Neatly arranged circular through holes (902) are provided at the bottom of the filter slot (901).

5. A filtering process for a raw material filtering device used in nylon production, applying a raw material filtering device for nylon production as described in claim 4, characterized in that, It includes the following steps: S1. First, when preparing to filter the raw materials for nylon production, the raw materials are first injected through the top position of the feeding rack (8), so that the raw materials enter the inside of the filtration cavity (504) opened in the filtration support (5) through the feeding rack (8). Then, the raw materials are initially filtered through the split filter screen (9) movably connected inside the filtration cavity (504), and the solid particle impurities inside the raw materials are blocked at the position of the circular through-hole (902) opened in the filtration groove (901). Then, the initially filtered raw materials enter the inside of the filtration inner cavity (101) opened in the filter box body (1) through the split filter screen (9). Then, the raw materials are blocked by the diversion cone plate (16) fixedly connected inside the filtration inner cavity (101), so that the raw materials flow to the position of the liquid inlet groove hole (102) opened on the inner wall of the filtration inner cavity (101). Then, the raw materials entering the position of the liquid inlet groove hole (102) reach the position of the liquid outlet groove hole (104) through the communication inner cavity (103). Then, they flow out through the liquid outlet groove hole (104) to the position of the distillation tank (1001) opened at the top of the distillation filtration rack (10). At this time, the electric heating grid (15) inside the distillation filtration rack (10) is powered on, so that the electric heating grid (15) generates heat to heat the raw materials inside the distillation tank (1001). Then, the solvent vapor generated by heating rises to the bottom position of the diversion cone plate (16). Then, the solution that is blocked by the diversion cone plate (16) and gradually cools and liquefies is guided by the recovery diversion cone (17) and drips into the inside of the distillation recovery barrel (11) opened in the middle of the distillation filtration rack (10) for collection. Then, after the raw material filtration and distillation are completed, at this time, the filtered and purified raw materials are discharged by opening the raw material discharge pipe (12). Then, the solvent collected inside the distillation recovery cavity (1101) is recovered by opening the distillation recovery pipe (13); S2. Then, after the raw material filtration is completed, pull the plugging slide plate (6) inside the dust removal cavity (501) opened in the filtration support (5) at this time, so that the grip (601) drives the plugging slide plate (6) and the split filter screen (9) to move into the dust removal cavity (501). Then, when the split filter screen (9) is moving, the cleaning brush (506) opened inside the annular groove (505) cleans the bottom of the split filter screen (9) at this time, so that the cleaning brush (506) pushes the impurities blocked inside the circular through hole (902) into the filter groove (901). Then, when the split filter screen (9) completely enters the dust removal cavity (501), stop pulling the plugging slide plate (6) at this time, and then turn on the dust suction component (3) on one side of the filter box main body (1), so that the dust suction component (3) operates and adsorbs the air inside the dust collection cavity (701) opened in the dust collection box (7) through the connecting hose (4). Then, a negative pressure is formed inside the dust collection cavity (701), so that the dust collection cavity (701) adsorbs the impurities inside the filter groove (901) through the conical dust guiding hole (703) and the dust collection hole (503), and the impurities enter the position inside the dust collection cavity (701) for collection. Then, after cleaning the split filter screen (9), it can be reset. Then, after the dust collection box (7) performs the dust collection operation multiple times, pull out the connecting hose (4) on one side of the dust collection box (7) at this time, then pull the dust collection box (7) away from the top position of the filtration support (5), then pull out the movable clamping plate (702) at the bottom of the dust collection box (7), then pour out the impurities inside the dust collection cavity (701), and then reset the movable clamping plate (702) and place it back on the top position of the filtration support (5), and make the mounting magnet block (14) inside the magnet mounting groove (502) adsorb and fix the bottom of the dust collection box (7) to complete.

Images