Pelletizing and sorting equipment for pressure-resistant PE pipeline material

Abstract

The utility model discloses granulation and separation equipment for pressure-resistant PE (polyethylene) pipeline materials, which relates to the technical field of pipeline material production and comprises a base, a vibration screening unit and a return re-screening unit. According to the utility model, the material screening frame shakes in a reciprocating manner, so that a vibration screening effect is formed on material particles; the material receiving frame and the material screening frame shake synchronously, material particles falling from the material screening frame can be received at any time, due to the fact that the material frame is obliquely arranged, the material particles can automatically slide downwards under the action of gravity and converge at the tip end of the material frame, and the discharging hopper is used for discharging the screened material particles outwards. A reliable returning and re-screening unit is further arranged, when material particles slide to the front end in the screening frame, the material particles which are not fully screened can enter a metal pipeline along a material returning funnel, and the material particles are re-introduced into a material containing hopper through a material suction pump for repeated screening, so that the screening sufficiency can be improved; and through the step plate, the material particles can be slightly raised while sliding downwards, and therefore the fine screening effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipe material production technology, specifically to a granulation and sorting equipment for pressure-resistant PE pipe material. Background Technology

[0002] Extrusion is a common process in manufacturing plastic pipes. However, during the extrusion process, various factors such as different raw materials, extrusion processes, and particle size can lead to differences in product quality and performance. Particle size also affects product weight; therefore, screening is necessary during the granule production process.

[0003] In existing technologies, the raw material granulation and sorting equipment used for the production of pressure-resistant PE pipes mostly has horizontally set screen frames, which are not smooth enough between screening and discharge. The discharge efficiency of the screened particles is low, and an external power device is required for discharge, which consumes a lot of energy. Moreover, the existing equipment cannot guarantee a fine sorting effect with a single screening process. Therefore, we propose a granulation and sorting equipment for pressure-resistant PE pipe materials. Utility Model Content

[0004] The technical problem this invention aims to solve is to overcome existing defects and provide a granulation and sorting device for pressure-resistant PE pipe materials. This device features a reliable vibrating screening unit. A hydraulic cylinder drives the screening frame to reciprocate, creating a vibrating screening effect on the material particles. The receiving frame and screening frame vibrate synchronously, catching particles falling from the screening frame at any time. Due to the inclined arrangement of the receiving and screening frames, the particles automatically slide down under gravity and converge at the tip of the frame. A discharge funnel discharges the screened particles. It also features a reliable return screening unit. When particles slide down to the front end inside the screening frame, insufficiently screened particles enter the metal pipe through the return funnel. A suction pump then re-feeds the particles into the hopper for repeated screening, thus improving the thoroughness of screening. A stepped plate slightly lifts the particles as they slide down, improving the fineness of the screening and effectively solving the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a granulation and sorting device for pressure-resistant PE pipe material, comprising a base, a vibrating screening unit, and a return screening unit;

[0006] Machine base: The upper front side is an inclined end face, and the granulator is installed and fixed on the rear side of the machine base;

[0007] Vibrating screening unit: includes mounting chutes, sliders, hydraulic cylinders, limit blocks, rollers, and connecting brackets. The upper front side of the machine base has two mounting chutes, one on the left and one on the right. The mounting chutes are arranged longitudinally and have slots on their inner walls. The slider is slidably connected inside the mounting chutes. Limit blocks are fixedly connected to the left and right ends of the slider. The limit blocks are locked and slidably connected inside the slots. A hydraulic cylinder is embedded in the front side of each of the two mounting chutes. The telescopic end of the hydraulic cylinder is fixedly connected to the front side of the slider. The upper end of the slider is fixedly connected to a connecting bracket with an L-shaped cross section. The vertical section on the outer side of the connecting bracket has bolt through holes.

[0008] Return screening unit: installed on the upper side of the machine base.

[0009] The hydraulic cylinder drives the slider to reciprocate within the mounting groove. The roller reduces the resistance encountered by the slider during its movement. The limiting blocks on both sides of the slider make its sliding smoother. The connecting bracket is used to install the receiving frame and the screening frame, and enables the two frames to be linked with the slider below. The slider drives the receiving frame and the screening frame to oscillate back and forth, thereby creating a vibratory screening effect on the particles inside the screening frame. The return screening unit can re-feed the particles that have not been fully screened back to the feeding end, thereby improving the screening precision through re-screening.

[0010] Furthermore, the vibrating screening unit includes a receiving frame, a screening frame, and a discharge funnel. The receiving frame is fixedly connected to the inner corner of the connecting bracket by bolts. The screening frame is integrally fixedly connected to the upper side of the receiving frame. The receiving frame and the screening frame are parallel to the inclined surface at the front of the upper end of the machine base, and their front ends are staggered at acute angles. The discharge funnel is fixedly connected to the front end of the receiving frame. The receiving frame and the screening frame vibrate synchronously, which can catch the material particles falling from the screening frame at any time. Due to the inclined setting of the receiving frame and the screening frame, the material particles will automatically slide down under the action of gravity and gather at the tip of the frame. The discharge funnel is used to discharge the screened material particles outward.

[0011] Furthermore, the vibrating screening unit also includes screen plates and step plates. Two screen plates are inserted into the inside of the receiving frame, and a step plate is fixedly connected to the upper side of the receiving frame adjacent to each screen plate. The screen plates are installed by insertion and are easy to disassemble and replace. The step plates allow the material particles to be slightly lifted as they slide down, thereby improving the fineness of the screening.

[0012] Furthermore, the return screening unit includes a return funnel, a metal pipe, a mounting bracket, a suction pump, and a holding hopper. A return funnel is fixedly connected to the front end of the screening frame, and a square holding hopper is fixedly connected to the upper rear side of the screening frame. A mounting bracket is bolted to the right side of the holding hopper, and a suction pump is fixedly installed at the inner corner of the mounting bracket. The inlet of the suction pump is connected to the lower side of the return funnel via a metal pipe, and the outlet of the suction pump is connected to the interior of the holding hopper via another metal pipe. When particles slide down to the front end inside the screening frame, insufficiently screened particles will enter the metal pipe along the return funnel. The suction pump then re-feeds the particles into the holding hopper, thus performing repeated screening and improving the thoroughness of the screening.

[0013] Furthermore, the return screening unit also includes electric gates and a discharge pipe. A row of electric gates is installed at the forward-facing discharge port of the hopper. A discharge pipe is installed on the front side of the granulator, with its front end bent downwards, and the width of the discharge pipe's port is much smaller than the width of the hopper. The upper port width of the discharge pipe is smaller than the width of the hopper, thus ensuring that the granules can still fall into the hopper even as it sways with the screening frame. The row of electric gates can operate independently, thereby controlling the flow rate of the granules.

[0014] Furthermore, a control panel is included. This control panel is installed on the upper right side of the granulator. The input terminals of the electric gate, suction pump, and hydraulic cylinder are all electrically connected to the output terminal of an external power supply via the control panel. The control panel's location on the upper right side of the granulator facilitates operator control of the equipment's operation based on screening and feeding conditions.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This pressure-resistant PE pipe material granulation and sorting equipment has the following advantages:

[0016] 1. It has a reliable vibrating screening unit. The hydraulic cylinder drives the screen frame to swing back and forth, thereby creating a vibrating screening effect on the material particles. The receiving frame and the screen frame swing synchronously, which can catch the material particles falling from the screen frame at any time. Due to the inclined setting of the receiving frame and the screen frame, the material particles will automatically slide down under the action of gravity and gather at the tip of the frame. The discharge funnel is used to discharge the screened material particles outward.

[0017] 2. It has a reliable return screening unit. When the material particles slide down to the front end inside the screening frame, the material particles that are not fully screened will enter the metal pipe through the return funnel. The suction pump will push the material particles back into the hopper for repeated screening, thereby improving the fullness of screening. The stepped plate can make the material particles be slightly lifted while sliding down, thereby improving the fineness of screening.

[0018] 3. This utility model features a reliable vibrating screening unit. A hydraulic cylinder drives the screening frame to reciprocate, thus creating a vibrating screening effect on the material particles. The receiving frame and the screening frame vibrate synchronously, catching the material particles falling from the screening frame at any time. Due to the inclined arrangement of the receiving frame and the screening frame, the material particles will automatically slide down under gravity and gather at the tip of the frame. The discharge funnel is used to discharge the screened material particles outward. It also features a reliable return screening unit. When the material particles slide down to the front end inside the screening frame, the insufficiently screened material particles will enter the metal pipe along the return funnel. The suction pump will then push the material particles back into the hopper for repeated screening, thereby improving the sufficiency of screening. The stepped plate allows the material particles to be slightly lifted as they slide down, thereby improving the fineness of the screening. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the upper oblique side structure of this utility model;

[0021] Figure 3 This is a partial structural diagram of the present invention;

[0022] Figure 4 This utility model Figure 3 Enlarged view of the structure at point A in the middle.

[0023] In the diagram: 1. Base, 2. Granulator, 3. Vibrating screen unit, 31. Mounting chute, 32. Slider, 33. Hydraulic cylinder, 34. Limiting block, 35. Roller, 36. Connecting bracket, 37. Receiving frame, 38. Screening frame, 39. Screen plate, 310. Discharge hopper, 311. Step plate, 4. Return screening unit, 41. Return hopper, 42. Metal pipe, 43. Mounting bracket, 44. Suction pump, 45. Hopper, 46. Electric gate, 47. Discharge pipe, 5. Control panel. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-4 This embodiment provides a technical solution: a granulation and sorting device for pressure-resistant PE pipe material, including a base 1, a vibrating screening unit 3 and a return screening unit 4;

[0026] Machine base 1: The upper front side is an inclined end face, and the granulator 2 is installed and fixed on the rear side of the machine base 1;

[0027] Vibrating screening unit 3 includes mounting grooves 31, sliders 32, hydraulic cylinders 33, limit blocks 34, drums 35, and connecting brackets 36. Two mounting grooves 31 are provided on the inclined surface of the upper front side of the base 1. The mounting grooves 31 are arranged longitudinally and have slots on their inner walls. The slider 32 is slidably connected inside the mounting grooves 31. Limit blocks 34 are fixedly connected to the left and right ends of the slider 32. The limit blocks 34 are locked and slidably connected inside the slots. A hydraulic cylinder 33 is embedded in the front side of each of the two mounting grooves 31. The telescopic end of the hydraulic cylinder 33 is fixedly connected to the front side of the slider 32. The upper end of the slider 32 is fixedly connected to a connecting bracket 36 with an L-shaped cross section. The vertical section of the outer side of the connecting bracket 36 has bolt through holes.

[0028] Return to screening unit 4: installed on the upper side of the base 1.

[0029] The hydraulic cylinder 33 is used to drive the slider 32 to move back and forth inside the mounting groove 31. The roller 35 can reduce the resistance encountered by the slider 32 during movement. The limiting blocks 34 on both sides of the slider 32 can make the slider 32 slide more smoothly. The connecting bracket 36 is used to install the receiving frame 37 and the screening frame 38, and can link the two frames with the slider 32 on the lower side. The slider 32 drives the receiving frame 37 and the screening frame 38 to shake back and forth, thereby forming a vibration screening effect on the particles inside the screening frame 38. The return screening unit 4 can re-transport the particles that have not been fully screened back to the feeding end, thereby improving the screening precision through re-screening.

[0030] The vibrating screening unit 3 includes a receiving frame 37, a screening frame 38, and a discharge funnel 310. The receiving frame 37 is fixedly connected to the inner corner of the connecting bracket 36 by bolts. The screening frame 38 is integrally fixedly connected to the upper side of the receiving frame 37. The receiving frame 37 and the screening frame 38 are parallel to the inclined surface on the front side of the upper end of the machine base 1, and their front ends are staggered at acute angles. The discharge funnel 310 is fixedly connected to the front end of the receiving frame 37. The receiving frame 37 and the screening frame 38 vibrate synchronously, which can catch the material particles falling from the screening frame 38 at any time. Because the receiving frame 37 and the screening frame 38 are inclined, the material particles will automatically slide down under the action of gravity and gather at the tip of the frame. The discharge funnel 310 is used to discharge the screened material particles outward.

[0031] The vibrating screening unit 3 also includes screen plates 39 and stepped plates 311. Two screen plates 39 are inserted into the inside of the receiving frame 37, and a stepped plate 311 is fixedly connected to the upper side of the receiving frame 37 adjacent to each screen plate 39. The screen plates 39 are installed by insertion and are easy to disassemble and replace. The stepped plates 311 allow the material particles to be slightly lifted when sliding down, thereby improving the fineness of the screening.

[0032] The return screening unit 4 includes a return funnel 41, a metal pipe 42, a mounting bracket 43, a suction pump 44, and a hopper 45. A return funnel 41 is fixedly connected to the front end of the screening frame 38, and a square hopper 45 is fixedly connected to the upper rear side of the screening frame 38. The mounting bracket 43 is bolted to the right side of the hopper 45, and a suction pump 44 is fixedly installed at the inner corner of the mounting bracket 43. The inlet of the suction pump 44 is connected to the lower side of the return funnel 41 via the metal pipe 42, and the outlet of the suction pump 44 is connected to the interior of the hopper 45 via another metal pipe 42. When particles slide down to the front end inside the screening frame 38, insufficiently screened particles will enter the metal pipe 42 along the return funnel 41. The suction pump 44 then re-feeds the particles into the hopper 45 for repeated screening, improving the thoroughness of the screening.

[0033] The return screening unit 4 also includes electric gates 46 and a discharge pipe 47. A row of electric gates 46 is installed at the discharge port facing forward of the hopper 45. The discharge pipe 47 is installed on the front side of the granulator 2. The front end of the discharge pipe 47 is bent downwards, and the width of the port of the discharge pipe 47 is much smaller than the width of the hopper 45. The upper port width of the discharge pipe 47 is smaller than the width of the hopper 45, so that the material particles can still fall into the hopper 45 while the hopper 45 is shaking with the screening frame 38. The row of electric gates 46 can work independently, thereby realizing the control of the material particle flow rate.

[0034] It also includes a control panel 5, which is installed on the upper right side of the granulator 2. The input ends of the electric gate 46, the suction pump 44, and the hydraulic cylinder 33 are all electrically connected to the output end of the external power supply through the control panel 5. The control panel 5 is located on the upper right side of the granulator 2, which makes it convenient for operators to control the operation of the equipment according to the screening and feeding situation.

[0035] The working principle of the pressure-resistant PE pipe material granulation and sorting equipment provided by this utility model is as follows: When the equipment is running, the linear raw material enters the granulator 2 from the rear and is discharged as granular material from the discharge pipe 47 on the front side of the granulator 2. After the granules fall into the hopper 45, they flow into the screen frame 38 from the front discharge port. The row of electric gates 46 can work independently, thereby realizing the control of the granule flow rate. This equipment has a reliable vibrating screening unit 3. The hydraulic cylinder 33 is used to drive the slider 32 to move back and forth inside the mounting groove 31. The roller 35 can reduce the resistance encountered by the slider 32 during the movement. The limiting blocks 34 on both sides of the slider 32 can make the slider 32 slide more smoothly. The connecting bracket 36 is used for the installation of the receiving frame 37 and the screen frame 38, and enables the two frames to be linked with the slider 32 on the lower side. The slider 32 drives the receiving frame 37 and the screen frame 38 to shake back and forth, thereby controlling the granules inside the screen frame 38. The system achieves a vibrating screening effect. The receiving frame 37 and the screening frame 38 vibrate synchronously, which can catch the material particles falling from the screening frame 38 at any time. Due to the inclined setting of the receiving frame 37 and the screening frame 38, the material particles will automatically slide down under the action of gravity and gather at the tip of the frame. The discharge funnel 310 is used to discharge the screened material particles outward. The screen plate 39 is installed by inserting and is easy to disassemble and replace. The stepped plate 311 can make the material particles be slightly lifted while sliding down, thereby improving the fineness of the screening. This equipment also features a reliable return screening unit 4. When the particles slide down to the front end inside the screening frame 38, the particles that are not fully screened will enter the metal pipe 42 along the return funnel 41. The suction pump 44 will then pump the particles back into the receiving hopper 45 for repeated screening, thus improving the sufficiency of screening. The upper port width of the discharge pipe 47 is smaller than the width of the receiving hopper 45, ensuring that particles can still fall into the receiving hopper 45 even as it sways with the screening frame 38. Furthermore, the control panel 5 is located on the upper right side of the granulator 2, allowing operators to easily control the equipment's operation based on the screening and feeding conditions.

[0036] It is worth noting that the input terminals of the electric gate 46, the suction pump 44, and the hydraulic cylinder 33 disclosed in the above embodiments are all electrically connected to the output terminal of an external power supply through the control panel 5. The control panel 5 controls the operation of the above electrical devices using methods commonly used in the prior art.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A granulation and sorting device for pressure-resistant PE pipe material, characterized in that: It includes a base (1), a vibrating screening unit (3), and a return screening unit (4); Machine base (1): The front side of the upper end is an inclined end face, and the granulator (2) is installed and fixed on the rear side of the machine base (1); Vibrating screening unit (3): includes mounting sluice (31), slider (32), hydraulic cylinder (33), limit block (34), drum (35) and connecting bracket (36). The upper front side of the machine base (1) is provided with two mounting sluices (31) on the left and right sides. The mounting sluices (31) are arranged longitudinally and have slots on the inner wall. The slider (32) is slidably connected to the inside of the mounting sluice (31). The left and right ends of the slider (32) are fixedly connected to the limit block (34). The limit block (34) is locked and slidably connected to the inside of the slot. A hydraulic cylinder (33) is embedded in the front side of each of the two mounting sluices (31). The telescopic end of the hydraulic cylinder (33) is fixedly connected to the front side of the slider (32). The upper end of the slider (32) is fixedly connected to the connecting bracket (36) with an L-shaped cross section. The vertical section of the outer side of the connecting bracket (36) is provided with bolt through holes. Return to screening unit (4): installed on the upper side of the base (1).

2. The granulation and sorting equipment for pressure-resistant PE pipe materials according to claim 1, characterized in that: The vibrating screening unit (3) includes a receiving frame (37), a screening frame (38), and a discharge funnel (310). The receiving frame (37) is fixedly connected to the inner corner of the connecting bracket (36) by bolts. The screening frame (38) is integrally fixedly connected to the upper side of the receiving frame (37). The receiving frame (37) and the screening frame (38) are parallel to the inclined surface on the upper front side of the machine base (1), and the front ends of the two are staggered acute angle structures. The discharge funnel (310) is fixedly connected to the front end of the receiving frame (37).

3. The granulation and sorting equipment for pressure-resistant PE pipe materials according to claim 2, characterized in that: The vibrating screening unit (3) also includes a screen plate (39) and a step plate (311). Two screen plates (39) are inserted inside the receiving frame (37). A step plate (311) is fixedly connected inside the receiving frame (37) and on the upper side adjacent to each screen plate (39).

4. The granulation and sorting equipment for pressure-resistant PE pipe materials according to claim 2, characterized in that: The return screening unit (4) includes a return funnel (41), a metal pipe (42), a mounting bracket (43), a suction pump (44), and a hopper (45). A return funnel (41) is fixedly connected to the front end of the screening frame (38). A square hopper (45) is fixedly connected to the upper rear side of the screening frame (38). A mounting bracket (43) is fixedly connected to the right side of the hopper (45) by bolts. A suction pump (44) is installed and fixed at the inner corner of the mounting bracket (43). The inlet of the suction pump (44) is connected to the lower side of the return funnel (41) through the metal pipe (42). The outlet of the suction pump (44) is connected to the inside of the hopper (45) through the other end of the metal pipe (42).

5. The granulation and sorting equipment for pressure-resistant PE pipe material according to claim 4, characterized in that: The return screening unit (4) also includes an electric gate (46) and a discharge pipe (47). A row of electric gates (46) is installed at the discharge port facing forward of the hopper (45). A discharge pipe (47) is installed on the front side of the granulator (2). The front end of the discharge pipe (47) is bent downward, and the port width of the discharge pipe (47) is much smaller than the width of the hopper (45).

6. The granulation and sorting equipment for pressure-resistant PE pipe materials according to claim 5, characterized in that: It also includes a control panel (5), which is installed on the upper right side of the granulator (2). The input ends of the electric gate (46), the suction pump (44) and the hydraulic cylinder (33) are all electrically connected to the output end of the external power supply through the control panel (5).

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