A device for removing impurities from pipe raw materials

Abstract

The present invention discloses a device for removing impurities from raw materials of pipes, comprising an impurity removal cylinder, wherein a feed conduit is arranged above the impurity removal cylinder; the impurity removal device for raw materials of pipes also comprises: a primary screening component and a secondary screening component, wherein the primary screening component and the secondary screening component are sequentially arranged inside the impurity removal cylinder from top to bottom, wherein the primary screening component and the secondary screening component both comprise a funnel guide sleeve; a hollow roller is rotatably connected to the side wall of each of the funnel guide sleeves, wherein filter holes are provided on the hollow rollers. The present invention sequentially arranges a primary screening component and a secondary screening component in the impurity removal cylinder, and is used to sequentially screen out smaller particle impurities and larger particle impurities in the raw materials of pipe fitting particles from the raw materials, and the screening process relies on a rotatable hollow roller for screening, and the hollow roller rotates due to the impact of the material body, thereby avoiding the particle matter from blocking the filter holes, and ensuring a continuous screening effect.

Description

Technical Field

[0001] The invention relates to the technical field of pipe material processing, and in particular to an impurity removal device for pipe material. Background Art

[0002] Pipes are a type of equipment used to transport fluids, and there are many types of pipes. Different pipes need to be made of different materials. Plastic pipes need to be processed and produced from plastic granular raw materials, and the granular raw materials of pipe fittings need to be cleaned before use, that is, the impurities contained in them need to be removed;

[0003] The Chinese patent authorization announcement number is CN215319900U, and its name is a device for automatically screening and removing impurities from raw materials for PVC pipe production, comprising a box body, a feed port is provided on the top of the box body, a drainage frame is fixedly connected to the top inner wall of the feed port, a floc box is installed on one side of the inner wall of the box body, a light and small impurity discharge port is connected to the outer wall of the box body, and the end of the light and small impurity discharge port is located inside the floc box. The device for automatically screening and removing impurities from raw materials for PVC pipe production can separate heavier impurities of different sizes in the raw material mixture through the mutual cooperation of parts such as a fine-pore filter plate, a coarse-pore filter plate, a light and small impurity discharge port, a heavy and small impurity discharge port, a raw material discharge port, and a heavy mass discharge port;

[0004] The disadvantages of the existing technical solution are that: when screening the debris of the raw material, the technical solution relies on the pushing component to push the raw material horizontally, pass through the corresponding filter plates in turn, and discharge it directly after screening. It is impossible to recycle and re-screen the material at different positions. When the material passes through the corresponding filter plate, it is difficult to ensure that the material is fully screened. In addition, since the installation position of each filter plate is fixed and flat, some materials can easily cover and block the filter holes during the flow process, seriously affecting the screening effect. At the same time, the material is not dispersed enough during the horizontal conveying and filtering process, which will also affect the screening effect. Summary of the invention

[0005] In order to overcome the above technical problems, the object of the present invention is to provide an impurity removal device for pipe raw materials.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A device for removing impurities from raw materials of pipes, comprising a impurity removal cylinder, above which a feed conduit is arranged; the device for removing impurities from raw materials of pipes further comprises:

[0008] A primary screening component and a secondary screening component, the primary screening component and the secondary screening component are sequentially distributed inside the impurity removal cylinder from top to bottom, and the primary screening component and the secondary screening component both include a funnel guide sleeve; a hollow roller is rotatably connected to the side wall of each funnel guide sleeve, and a filter hole is formed on the hollow roller, and the filter hole diameter in the primary screening component is smaller than the filter hole diameter in the secondary screening component;

[0009] A material return mechanism, the material return mechanism is arranged on one side of the interior of the impurity removal cylinder;

[0010] A detection switch group is arranged on the feed conduit and is electrically connected with the return mechanism.

[0011] As a further solution of the present invention: the primary screening assembly and the secondary screening assembly also include a first inclined guide plate, which is connected to the bottom of the corresponding funnel guide sleeve, a diverter ball cover is arranged above each funnel guide sleeve, and a second inclined guide plate is connected to the bottom of the impurity removal barrel.

[0012] As a further solution of the present invention: the return mechanism includes a second particle conveying pump, the second particle conveying pump is connected in the impurity removal barrel, the discharge end of the second particle conveying pump is connected to a discharge pipe that cooperates with the primary screening assembly, the feed end of the second particle conveying pump is connected to a fixed suction pipe, the bottom end of the fixed suction pipe corresponds to the first inclined guide plate in the secondary screening assembly, a sliding suction pipe is slidably arranged on the inner side of the bottom of the fixed suction pipe; a lifting assembly is arranged between the sliding suction pipe and the first inclined guide plate of the secondary screening assembly.

[0013] As a further solution of the present invention: the lifting assembly includes an electric telescopic rod, which is connected to the first inclined guide plate in the secondary screening assembly, and a connecting frame is provided on the first inclined guide plate in the secondary screening assembly. The connecting frame is connected between the telescopic end of the electric telescopic rod and the sliding straw, and a blocking block is movably connected to the connecting frame through a hinge, and the blocking block is embedded in the corresponding first inclined guide plate, and a limiting block rod cooperating with the blocking block is provided on one side of the bottom of the debris removal barrel.

[0014] As a further solution of the present invention: a linkage assembly is arranged in the fixed straw and is connected to the diverter ball cover in the secondary screening component, the linkage assembly includes a second conical guide sleeve, the second conical guide sleeve is slidably arranged in the fixed straw, a connecting rope is connected between the second conical guide sleeve and the sliding straw, a strip opening is opened on one side of the fixed straw, a linkage frame is connected to the diverter ball cover in the primary screening component, the linkage frame passes through the strip opening and is connected to the second conical guide sleeve, a closed slide matching the strip opening is arranged on the linkage frame, and a conical enclosure matching the corresponding diverter ball cover is connected to the funnel guide sleeve in the secondary screening component.

[0015] As a further solution of the present invention: the detection switch group includes a first conical guide sleeve, the first conical guide sleeve is arranged at the port of the feed conduit, the first conical guide sleeve is connected to sliding rods in pairs, the sliding rods are slidably inserted on the feed conduit, a spring is connected between the sliding rod and the feed conduit, the end of the feed conduit is connected to a pressure sensing switch that cooperates with the first conical guide sleeve, and the second particle conveying pump and the electric telescopic rod are both electrically connected to the pressure sensing switch.

[0016] As a further solution of the present invention: a discharging mechanism cooperating with the secondary screening assembly is provided on one side of the impurity removal cylinder, and the discharging mechanism includes a first particle conveying pump, and the first particle conveying pump is arranged on the outer wall of the impurity removal cylinder, and the feed end of the first particle conveying pump is connected to a suction pipe, and the end of the suction pipe is located on the first inclined guide plate in the secondary screening assembly.

[0017] As a further solution of the present invention: an air blowing pipe is arranged on one side of the impurity removing barrel, an air pump is arranged on the top of the air blowing pipe, a plurality of nozzles are distributed on the air blowing pipe, and each of the nozzles is connected to the inside of the impurity removing barrel, and a mesh plate is arranged on the other side of the impurity removing barrel.

[0018] Beneficial effects of the present invention:

[0019] 1. The present invention sequentially arranges a primary screening component and a secondary screening component in the impurity removal cylinder to sequentially screen out smaller particles and larger particles of impurities in the pipe granular raw material from the raw material, and the screening is performed by a rotatable hollow roller during the screening process. The hollow roller rotates due to the impact of the material body, thereby preventing particles from blocking the filter holes and ensuring continuous screening.

[0020] 2. After screening, the material bodies of each layer are on the corresponding first and second inclined guide plates, and after the material bodies stop being discharged into the impurity removal cylinder, the second particle conveying pump can be automatically triggered to operate, and the sliding suction pipe in the fixed suction pipe first slides to the second inclined guide plate to extract the large particle impurities that may be mixed with small particle impurities and pipe particle raw materials, and then re-screened by the primary screening component and the secondary screening component in sequence;

[0021] 3. The sliding suction pipe of the present invention slides and resets after recycling the material on the second inclined guide plate for a period of time, and then the pipe granular raw materials that may be mixed with small particles on the first inclined guide plate can be sucked away by the fixed suction pipe, so that the pipe granular raw materials can pass through the primary screening component again to remove the small particles. At the same time, during the screening process, the diverter ball cover and the funnel guide sleeve of the secondary screening component are spliced ​​to avoid the particles passing through the secondary screening component again, thereby avoiding the material from being dispersed onto the second inclined guide plate, realizing the classification and re-screening process, and improving the screening effect;

[0022] 4. During the screening process of the present invention, air is inflated to various positions in the impurity removal barrel through an air blowing pipe, so as to drive the dust in the flowing material body to flow, thereby facilitating its discharge from the mesh plate on one side of the impurity removal barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is an enlarged structural schematic diagram of the funnel guide sleeve in the present invention;

[0026] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0027] Figure 4 yes Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0028] Figure 5 yes Figure 1 Schematic diagram of the enlarged structure at C in the middle;

[0029] Figure 6 yes Figure 1 Schematic diagram of the enlarged structure at D in the middle.

[0030] In the figure: 1. impurity removal cylinder; 2. feed conduit; 3. second particle conveying pump; 4. air blowing pipe; 5. mesh plate; 6. diverter ball cover; 7. funnel guide sleeve; 8. first inclined guide plate; 9. vibrator; 10. second inclined guide plate; 11. air pump; 12. fixed suction pipe; 13. discharge door; 14. first particle conveying pump; 15. suction pipe; 16. hollow roller; 17. filter hole; 18. strip opening; 19. linkage frame; 20. closed slide plate; 21. second conical guide sleeve; 22. connecting rope; 23. sliding suction pipe; 24. conical enclosure; 25. electric telescopic rod; 26. connecting frame; 27. blocking block; 28. limit stop rod; 29. ​​first conical guide sleeve; 30. pressure sensing switch; 31. slide rod; 32. spring; 33. discharge pipe. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figure 1-Figure 6As shown, a de-impurity device for pipe raw materials comprises a de-impurity barrel 1, a feed conduit 2 is arranged above the de-impurity barrel 1, and the feed conduit 2 is used to conduct the pipe granular raw materials into the de-impurity barrel 1; the interior of the de-impurity barrel 1 is provided with a primary screening component and a secondary screening component from top to bottom, and the primary screening component and the secondary screening component both comprise a funnel guide sleeve 7, and the funnel guide sleeve 7 is connected to the interior of the de-impurity barrel 1, and a diverter ball cover 6 is arranged above each funnel guide sleeve 7, and the diverter ball cover 6 of the primary screening component is fixedly connected to the inner wall of the de-impurity barrel 1, and the diverter ball cover 6 of the secondary screening component can move longitudinally relative to the de-impurity barrel 1, and the granular raw materials fall on the diverter ball cover 6 and disperse along the spherical surface; a hollow roller 16 is rotatably connected to the side wall of each funnel guide sleeve 7, and a plurality of hollow rollers 16 are arranged, which are multiple and evenly distributed on the corresponding funnel guide sleeves. In the bucket guide sleeve 7, the hollow roller 16 is embedded in the funnel guide sleeve 7, and a small gap can be ensured at the installation position by processing. A filter hole 17 is provided on each hollow roller 16. The aperture of the filter hole 17 in the primary screening component is smaller than that in the secondary screening component. The filter hole 17 in the primary screening component is used to allow the passage of debris smaller than the pipe granular raw material, and hinder the passage of the pipe granular raw material and debris larger than the granular raw material, while the filter hole 17 in the secondary screening component is used to allow the granular raw material to pass through and hinder the passage of debris larger than the granular raw material. The primary screening component and the secondary screening component also include a first inclined guide plate 8, which is connected to the bottom of the corresponding funnel guide sleeve 7. The first inclined guide plate 8 is used to guide the filtered objects to one end for collection, and the bottom of the impurity removal cylinder 1 is fixedly connected with a second inclined guide plate 10;

[0033] When the pipe granular raw material is discharged from the feed conduit 2, it falls on the diverter ball cover 6 on the primary screening component, and then the raw material is dispersed along the spherical surface and falls into the funnel guide sleeve 7 of the primary screening component from all directions. Then the material body flows to the bottom along the inner wall of the funnel guide sleeve 7, and passes through the hollow rollers 16 at various positions during the flow process. The smaller particles and impurities mixed in the material body pass through the filter holes 17 on the hollow rollers 16, and then fall on the first inclined guide plate 8 at the bottom of the primary screening component. In the process of the material body flowing along the funnel guide sleeve 7, it can impact the rotation of the hollow rollers 16 at various positions to avoid large particles. The particles block the filter holes 17, affecting the screening effect. The material body after screening by the primary screening component flows to the diverter ball cover 6 of the secondary screening component, and then passes through the funnel guide sleeve 7 of the secondary screening component and the hollow roller 16 with the corresponding filter holes 17, so as to block the larger debris in the material body. And by relying on the rotation of the hollow roller 16, it is convenient to make the larger debris fall onto the second inclined guide plate 10, while the pipe body particle material passes through the filter holes 17 of the secondary screening component and falls on the first inclined guide plate 8 at the bottom of the secondary screening component, so as to achieve the effective separation of the pipe particulate material body, smaller debris and larger debris;

[0034] The first-stage screening assembly and the second inclined guide plate 10 are both provided with a discharge door 13, which is installed at the corresponding position of the impurity removal cylinder 1. The discharge door 13 is convenient for opening the corresponding position of the impurity removal cylinder 1, and then cleaning out the smaller particles of debris accumulated on the first inclined guide plate 8 at the bottom of the first-stage screening assembly, and cleaning out the larger particles of debris accumulated on the second inclined guide plate 10;

[0035] A vibrator 9 is fixedly installed at the bottom of the first inclined guide plate 8 and the second inclined guide plate 10. The vibrator 9 generates vibrations to facilitate the flow of the material along the first inclined guide plate 8 and the second inclined guide plate 10, and also facilitates the vibration of the dust attached to the material so as to be blown away.

[0036] A discharging mechanism matched with the secondary screening assembly is arranged on one side of the impurity removal barrel 1, and the discharging mechanism comprises a first particle delivery pump 14, which is fixedly mounted on the outer wall of the impurity removal barrel 1, and a suction pipe 15 is connected to the feeding end of the first particle delivery pump 14, and the end of the suction pipe 15 penetrates into the impurity removal barrel 1 and is located on the first inclined guide plate 8 of the secondary screening assembly. The first particle delivery pump 14 conveniently extracts the pipe particle raw material stored on the first inclined guide plate 8 of the secondary screening assembly through the suction pipe 15;

[0037] A blow pipe 4 is fixedly installed on one side of the impurity removal barrel 1, and an air pump 11 is installed on the top of the blow pipe 4. A plurality of nozzles are distributed on the blow pipe 4, and each nozzle is connected to the inside of the impurity removal barrel 1. A mesh plate 5 is arranged on the other side of the impurity removal barrel 1. During the screening process of the material body, the air pump 11 generates airflow to fill the blow pipe 4, and then the blow pipe 4 is laterally inflated into the impurity removal barrel 1 through each nozzle, so that the dust in the material body can be driven to flow by the airflow and discharged from the mesh plate 5;

[0038] A material return mechanism is provided on one side of the interior of the impurity removal cylinder 1, and the material return mechanism includes a second particle conveying pump 3, and the second particle conveying pump 3 is fixedly connected to one side of the inner wall of the top end of the impurity removal cylinder 1, and the discharge end of the second particle conveying pump 3 is connected to a discharge pipe 33 matched with the primary screening component, and the feed end of the second particle conveying pump 3 is vertically fixedly connected to a fixed suction pipe 12, and the fixed suction pipe 12 passes through the lower end of the first inclined guide plate 8 of the primary screening component, and the bottom end of the fixed suction pipe 12 corresponds to the first inclined guide plate 8 in the secondary screening component, and near the lower end of the first inclined guide plate 8, a sliding suction pipe 23 is slidably inserted into the inner side of the bottom of the fixed suction pipe 12, and a lifting component is provided between the sliding suction pipe 23 and the first inclined guide plate 8 of the secondary screening component, and the lifting component includes an electric The telescopic rod 25, the electric telescopic rod 25 is fixedly connected to the first inclined guide plate 8 of the secondary screening assembly, and the telescopic end of the electric telescopic rod 25 passes through the corresponding first inclined guide plate 8, and the first inclined guide plate 8 of the secondary screening assembly is penetrated by a connecting frame 26, the connecting frame 26 is connected between the telescopic end of the electric telescopic rod 25 and the sliding suction pipe 23, and the connecting frame 26 is movably connected with a blocking block 27 through a hinge, and the blocking block 27 is embedded in the corresponding first inclined guide plate 8, and a limiting blocking rod 28 matching the blocking block 27 is provided on one side of the bottom of the impurity removal barrel 1. It should be noted here that the connecting end of the blocking block 27 is attached to the connecting frame 26, and the connecting end is only connected to the connecting frame 26 by a hinge on the upper side, so the blocking block 27 cannot rotate downward;

[0039] The feed conduit 2 is provided with a detection switch group electrically connected to the material return mechanism, the detection switch group includes a first conical guide sleeve 29, the first conical guide sleeve 29 is provided at the port of the feed conduit 2, a pair of sliding rods 31 are fixedly connected to the first conical guide sleeve 29, the sliding rods 31 are slidably inserted in the feed conduit 2, a spring 32 is connected between the sliding rod 31 and the feed conduit 2, the end of the feed conduit 2 is connected to a pressure sensing switch 30 matched with the first conical guide sleeve 29, and the second particle conveying pump 3 and the electric telescopic rod 25 are electrically connected to the pressure sensing switch 30 through a delay circuit;

[0040] When the pipe granular raw material is transported downward from the feed conduit 2, the material body generates an impact force on the first conical guide sleeve 29, causing the first conical guide sleeve 29 to drop a distance by relying on the slide bar 31 and away from the pressure sensing switch 30. When the material body stops discharging, the first conical guide sleeve 29 rises and resets under the rebound force of the spring 32, and squeezes onto the pressure sensing switch 30. The pressure sensing switch 30 generates an induction, and under the action of the delay circuit, after a period of time, the electric telescopic rod 25 extends, and the electric telescopic rod 25 drives the blocking block 27 and the sliding straw 23 to drop through the connecting frame 26, so that the blocking block 27 breaks away from the corresponding first inclined guide plate 8, drops close to the second inclined guide plate 10, and the sliding straw 23 moves away from the blocking block 27. The open position of the block 27 penetrates the first inclined guide plate 8 at the bottom of the secondary screening assembly, and then descends close to the second inclined guide plate 10. After the blocking block 27 descends to a certain position, it collides with the limit stopper 28, so that the blocking block 27 rotates and tilts up to avoid blocking the bottom port of the sliding suction pipe 23. In this way, when the second particle conveying pump 3 is started, the second particle conveying pump 3 extracts the large particle debris falling on the second inclined guide plate 10 through the sliding suction pipe 23, and sprays it onto the primary screening assembly through the discharge pipe 33. Then the material body is screened again through the primary screening assembly and the secondary screening assembly in turn, so that it is convenient to screen out the pipe particle raw materials and small particle debris that may be mixed in the large particle debris again, thereby improving the screening effect;

[0041] A timing start-stop control module is installed on the control circuit of the electric telescopic rod 25. When the electric telescopic rod 25 is extended, the timing start-stop control module starts timing, and when the corresponding time is reached, the electric telescopic rod 25 is controlled to retract and reset, so that the sliding straw 23 and the blocking block 27 are reset to the first inclined guide plate 8 of the secondary screening assembly.

[0042] A linkage assembly that is connected with the diverter ball cover 6 of the secondary screening component is arranged in the fixed suction pipe 12, and the linkage assembly includes a second conical guide sleeve 21, which is slidably arranged in the fixed suction pipe 12, and the small-diameter end of the second conical guide sleeve 21 faces upward, and a connecting rope 22 is connected between the second conical guide sleeve 21 and the sliding suction pipe 23. When the sliding suction pipe 23 slides downward out of the fixed suction pipe 12, the connecting rope 22 is tightened, so that the second conical guide sleeve 21 cannot rise under the action of negative pressure; a strip opening 18 is opened on one side of the fixed suction pipe 12, and a linkage frame 19 is fixedly connected to the diverter ball cover 6 of the primary screening component, and the linkage frame 19 passes through the strip opening 18 and is fixedly connected to the second conical guide sleeve 21, and a closed slide plate 20 that matches the strip opening 18 is arranged on the linkage frame 19, and a conical enclosure 24 that matches the corresponding diverter ball cover 6 is fixedly connected to the funnel guide sleeve 7 of the secondary screening component;

[0043] When the sliding suction pipe 23 slides into the fixed suction pipe 12 and the second particle conveying pump 3 remains in operation, the negative pressure generated by the second particle conveying pump 3 causes the second conical guide sleeve 21 to slide and rise, and the second conical guide sleeve 21 drives the diverter ball cover 6 to rise through the linkage frame 19, and the raised diverter ball cover 6 is assembled with the conical enclosure 24. At the same time, the second particle conveying pump 3 sucks away the pipe raw materials that may be mixed with small particles of impurities on the first inclined guide plate 8 at the bottom of the secondary screening component through the fixed suction pipe 12, so that it passes through the primary screening component again to screen the small particles of impurities, and because the diverter ball cover 6 of the secondary screening component is assembled with the conical enclosure 24, the pipe particle raw materials discharged from the primary screening component directly fall on the first inclined guide plate 8 at the bottom of the secondary screening component, avoiding the pipe particle raw materials passing through the secondary screening component again and then falling on the second inclined guide plate 10.

[0044] The working principle of the present invention is as follows: when the pipe granular raw material is discharged from the feed conduit 2, the material body generates an impact force on the first conical guide sleeve 29, so that the first conical guide sleeve 29 falls down a distance by relying on the slide rod 31, away from the pressure sensing switch 30, and the material body falls on the diversion ball cover 6 on the primary screening component, and then the raw material is dispersed along the spherical surface, and falls into the funnel guide sleeve 7 of the primary screening component from all directions, and then the material body flows to the bottom along the inner wall of the funnel guide sleeve 7, passes through the hollow rollers 16 at various positions during the flow process, and the smaller particles and impurities mixed in the material body pass through the filter holes 17 on the hollow rollers 16, and then fall on the first inclined guide plate 8 at the bottom of the primary screening component, and During the flow along the funnel guide sleeve 7, the hollow rollers 16 at various positions can be impacted to rotate, so as to avoid large particles blocking the filter holes 17 and affecting the screening effect. The material body screened by the primary screening component flows to the diverter ball cover 6 of the secondary screening component, and then passes through the funnel guide sleeve 7 of the secondary screening component and the hollow rollers 16 with corresponding filter holes 17, so as to block the larger debris in the material body, and rely on the rotation of the hollow rollers 16 to make it easier for the larger debris to fall onto the second inclined guide plate 10, while the pipe body particle raw material passes through the filter holes 17 of the secondary screening component and falls on the first inclined guide plate 8 at the bottom of the secondary screening component, so as to achieve effective separation of the pipe particulate material body, smaller debris and larger debris;

[0045] During the material screening process, the air pump 11 generates airflow to fill the air blowing pipe 4, and then the air blowing pipe 4 inflates the impurity removal cylinder 1 horizontally through various nozzles, so that the dust in the material body can be driven by the airflow to flow and be discharged from the mesh plate 5;

[0046] When the feed conduit 2 stops discharging the material body, the first conical guide sleeve 29 rises and resets under the action of the rebound force of the spring 32, and presses onto the pressure sensing switch 30, and the pressure sensing switch 30 generates induction, and under the action of the delay circuit, after a period of time, the electric telescopic rod 25 is extended, and the electric telescopic rod 25 drives the blocking block 27 and the sliding suction pipe 23 to descend through the connecting frame 26, so that the blocking block 27 is separated from the corresponding first inclined guide plate 8, and descends close to the second inclined guide plate 10, and the sliding suction pipe 23 passes through the first inclined guide plate 8 at the bottom of the secondary screening assembly from the position where the blocking block 27 is opened, and then descends close to the second inclined guide plate 10. After the sliding suction pipe 23 descends, it and the second conical guide The connecting rope 22 between the sleeves 21 is tightened, so that the second conical guide sleeve 21 cannot rise under the negative pressure. After the blocking block 27 is lowered to a certain position, it collides with the limit stopper 28, so that the blocking block 27 rotates and tilts up to avoid blocking the bottom port of the sliding suction pipe 23. In this way, when the second particle conveying pump 3 is started, the second particle conveying pump 3 will extract the large particles of debris falling on the second inclined guide plate 10 through the sliding suction pipe 23, and spray it onto the first-level screening component through the discharge pipe 33, and then the material body is screened again through the first-level screening component and the second-level screening component in turn, so that it is convenient to screen out the pipe particle raw materials and small particles of debris that may be mixed in the large particles again, thereby improving the screening effect;

[0047] When the electric telescopic rod 25 is extended, the timing start-stop control module starts timing, and when the corresponding time is reached, the electric telescopic rod 25 is controlled to retract and reset, so that the sliding straw 23 and the blocking block 27 are reset to the first inclined guide plate 8 of the secondary screening assembly;

[0048] When the sliding suction pipe 23 is slidably received in the fixed suction pipe 12 and the second particle conveying pump 3 remains in operation, the negative pressure generated by the second particle conveying pump 3 causes the second conical guide sleeve 21 to slide and rise, and the second conical guide sleeve 21 drives the diverter ball cover 6 to rise through the linkage frame 19, and the raised diverter ball cover 6 is assembled with the conical enclosure 24. At the same time, the second particle conveying pump 3 absorbs the pipe material that may be mixed with small particles of impurities on the first inclined guide plate 8 at the bottom of the secondary screening component through the fixed suction pipe 12, so that it passes through the primary screening component again to screen the small particles of impurities, and because the diverter ball cover 6 of the secondary screening component is assembled with the conical enclosure 24, the pipe particle material discharged from the primary screening component directly falls on the first inclined guide plate 8 at the bottom of the secondary screening component, so as to avoid the pipe particle material passing through the secondary screening component again and then falling on the second inclined guide plate 10;

[0049] After screening for multiple times, open the discharge door 13 at the corresponding position, clean out the smaller particles accumulated on the first inclined guide plate 8 at the bottom of the primary screening component, and clean out the larger particles accumulated on the second inclined guide plate 10, and start the first particle conveying pump 14 to extract the pipe particle material stored on the first inclined guide plate 8 at the bottom of the secondary screening component through the suction pipe 15.

[0050] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A device for removing impurities from pipe raw materials, comprising an impurity removal cylinder (1), wherein a feed conduit (2) is arranged above the impurity removal cylinder (1); characterized in that: Also includes: A primary screening component and a secondary screening component, the primary screening component and the secondary screening component are sequentially arranged inside the impurity removal barrel (1) from top to bottom, and the primary screening component and the secondary screening component both comprise a funnel guide sleeve (7); a hollow roller (16) is rotatably connected to the side wall of each of the funnel guide sleeves (7), and a filter hole (17) is formed on the hollow roller (16), and the filter hole (17) in the primary screening component has a smaller aperture than the filter hole (17) in the secondary screening component; A material return mechanism, the material return mechanism being arranged on one side of the interior of the impurity removal cylinder (1); A detection switch group, the detection switch group is arranged on the feed conduit (2) and is electrically connected to the material return mechanism; The primary screening assembly and the secondary screening assembly further include a first inclined guide plate (8), the first inclined guide plate (8) being connected to the bottom of the corresponding funnel guide sleeve (7), a flow dividing ball cover (6) being arranged above each funnel guide sleeve (7), and a second inclined guide plate (10) being connected to the bottom of the impurity removal cylinder (1); The return mechanism comprises a second particle conveying pump (3), the second particle conveying pump (3) is connected in the impurity removal barrel (1), the discharge end of the second particle conveying pump (3) is connected to a discharge pipe (33) matched with the primary screening assembly, the feed end of the second particle conveying pump (3) is connected to a fixed suction pipe (12), the bottom end of the fixed suction pipe (12) corresponds to the first inclined guide plate (8) in the secondary screening assembly, a sliding suction pipe (23) is slidably arranged on the inner side of the bottom of the fixed suction pipe (12), and a lifting assembly is arranged between the sliding suction pipe (23) and the first inclined guide plate (8) of the secondary screening assembly; The lifting assembly comprises an electric telescopic rod (25), the electric telescopic rod (25) being connected to a first inclined guide plate (8) in the secondary screening assembly, a connecting frame (26) being provided on the first inclined guide plate (8) in the secondary screening assembly, the connecting frame (26) being connected between the telescopic end of the electric telescopic rod (25) and the sliding suction pipe (23), a blocking block (27) being movably connected to the connecting frame (26) via a hinge, the blocking block (27) being embedded in the corresponding first inclined guide plate (8), and a limit stop rod (28) cooperating with the blocking block (27) being provided on one side of the bottom of the impurity removal barrel (1); A linkage assembly is arranged in the fixed suction pipe (12) and is connected to the diverter ball cover (6) in the secondary screening component. The linkage assembly includes a second conical guide sleeve (21). The second conical guide sleeve (21) is slidably arranged in the fixed suction pipe (12). A connecting rope (22) is connected between the second conical guide sleeve (21) and the sliding suction pipe (23). A strip-shaped opening (18) is opened on one side of the fixed suction pipe (12). A linkage frame (19) is connected to the diverter ball cover (6) in the primary screening component. The linkage frame (19) passes through the strip-shaped opening (18) and is connected to the second conical guide sleeve (21). A closed slide plate (20) that matches the strip-shaped opening (18) is arranged on the linkage frame (19). A conical enclosure (24) that matches the corresponding diverter ball cover (6) is connected to the funnel guide sleeve (7) in the secondary screening component. The detection switch group comprises a first conical guide sleeve (29), the first conical guide sleeve (29) being arranged at the port of the feed conduit (2), the first conical guide sleeve (29) being connected in pairs with sliding rods (31), the sliding rods (31) being slidably inserted on the feed conduit (2), a spring (32) being connected between the sliding rods (31) and the feed conduit (2), the end of the feed conduit (2) being connected with a pressure sensing switch (30) matching with the first conical guide sleeve (29), the second particle conveying pump (3) and the electric telescopic rod (25) being electrically connected to the pressure sensing switch (30).

2. The impurity removal device for pipe raw materials according to claim 1, characterized in that: A discharge mechanism cooperating with the secondary screening assembly is arranged on one side of the impurity removal barrel (1), and the discharge mechanism comprises a first particle conveying pump (14). The first particle conveying pump (14) is arranged on the outer wall of the impurity removal barrel (1), and a suction pipe (15) is connected to the feed end of the first particle conveying pump (14), and the end of the suction pipe (15) is located on the first inclined guide plate (8) in the secondary screening assembly.

3. The impurity removal device for pipe raw materials according to claim 1, characterized in that: An air blowing pipe (4) is provided on one side of the impurity removing barrel (1), an air pump (11) is provided on the top of the air blowing pipe (4), a plurality of nozzles are distributed on the air blowing pipe (4), and each of the nozzles is connected to the interior of the impurity removing barrel (1), and a mesh plate (5) is provided on the other side of the impurity removing barrel (1).

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