A screening and feeding system

Abstract

This utility model discloses a screening and feeding system, relating to the field of plastic processing technology, including: a high-speed mixer, a lifting hopper, a lifting and conveying mechanism, a screening hopper, a vibrating screen, a conveying pipeline, and a storage silo. During processing, this utility model eliminates the need for filtering various materials; instead, all materials are directly placed in the high-speed mixer for mixing. The mixed material is then placed in the lifting hopper, and the lifting and conveying mechanism transports the material from the lifting hopper to the screening hopper. A power mechanism drives the vibrating screen to vibrate and screen the material. The material falls below the vibrating screen, while foreign objects move towards the foreign object discharge channel due to the vibration of the screen, and are then discharged from the screening hopper. Subsequently, the screened material is transported through the conveying pipeline to the storage silo for storage.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing technology, specifically to a sieving and feeding system. Background Technology

[0002] Plastics are high molecular polymers that are lightweight, durable, and highly malleable. There are many types of plastics, including polyethylene, polypropylene, and polyvinyl chloride.

[0003] In the plastic manufacturing process, various formulation materials need to be fed into a high-speed mixer for mixing. After mixing in the high-speed mixer, the materials are then sent to the next process step. In the existing technology, all the formulation materials for making plastics are screened separately before entering the high-speed mixer for processing, which is very inconvenient.

[0004] In view of this, there is an urgent need for a screening and feeding system to solve the above problems. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model solves the problem using the following technical structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A screening and feeding system includes: a high-speed mixer, a lifting hopper, a lifting and conveying mechanism, a screening hopper, a vibrating screen, a conveying pipeline, and a storage silo. The lifting hopper is located at the material outlet of the high-speed mixer. The lifting and conveying mechanism is used to lift the material in the lifting hopper to the screening hopper. The conveying pipeline conveys the material in the screening hopper to the storage silo through vacuum negative pressure conveying. The vibrating screen is installed inside the screening hopper, and the screening hopper has a foreign matter discharge channel on the upper circumferential side of the vibrating screen.

[0007] The lifting and conveying mechanism includes a first conveying screw, which extends obliquely upward from the lifting hopper to the screening hopper, and the discharge port of the first conveying screw is located above the vibrating screen.

[0008] The inlet of the screening silo is located at the top of the screening silo, and the outlet of the first conveying screw is located directly above the inlet of the screening silo.

[0009] The lifting and conveying mechanism further includes a second conveying screw, which is horizontally arranged inside the lifting hopper, and the outlet of the second conveying screw is connected to the inlet of the first conveying screw.

[0010] The discharge port of the screening silo is located at the bottom of the screening silo. A cooling silo is located below the screening silo. The inlet of the cooling silo is connected to the discharge port of the screening silo. The conveying pipeline conveys the material in the cooling silo to the storage silo through vacuum negative pressure conveying.

[0011] A magnetic adsorption chamber is provided between the discharge port of the screening silo and the inlet of the cooling silo. A magnetic frame is provided inside the magnetic adsorption chamber, and the magnetic frame is made of magnetic material.

[0012] The magnetic frame includes several layers of magnetic rods arranged sequentially from top to bottom, and each layer of magnetic rods includes several magnetic rods. The magnetic plate is arranged horizontally.

[0013] The cooling hopper is equipped with a drive unit and a stirring blade. The stirring blade is disposed inside the cooling hopper, and the drive unit is used to drive the stirring blade to rotate.

[0014] The lower half of the cooling silo is funnel-shaped, the stirring blade is located in the lower half of the cooling silo, the outlet of the cooling silo is located at the bottom of the cooling silo, and the conveying pipeline is connected to the outlet of the cooling silo.

[0015] The stirring blades are trapezoidal.

[0016] The lifting hopper is equipped with a first high level gauge and a first low level gauge.

[0017] The cooling silo is equipped with a second high level gauge and a second low level gauge.

[0018] The storage silo is equipped with a third high level gauge and a third low level gauge.

[0019] The above-described structure of this utility model can achieve the following beneficial effects: During processing, there is no need to filter various materials. All materials are directly placed in the high-speed mixer for mixing. The mixed materials are placed in the lifting hopper and conveyed to the screening hopper by the lifting conveyor mechanism. The vibrating screen is driven by the power mechanism to vibrate and screen the materials. The materials fall below the vibrating screen, and foreign objects move to the foreign object discharge channel side after being vibrated by the vibrating screen and are discharged from the screening hopper. The screened materials are then transported to the storage silo through the conveying pipeline for storage. The magnetic adsorption chamber is equipped with a magnetic frame. After the material is screened, it passes through the magnetic frame. The metal powder mixed in the material is adsorbed by the magnetic material, which further removes impurities from the material and improves the quality of the subsequent plastic products. After passing through the magnetic adsorption chamber, the material enters the cooling silo and is cooled by the cooling mechanism set in the cooling silo. Then it is transported to the storage silo through the conveying pipeline for storage. The material is then received from the discharge port of the storage silo. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this embodiment; Figure 2 This is a schematic diagram of the structure of the screening silo and the cooling silo in this embodiment.

[0021] In the diagram: 1. High-speed mixer; 2. Lifting hopper; 21. First high-level gauge; 22. First low-level gauge; 3. Lifting and conveying mechanism; 31. First conveying screw; 32. Second conveying screw; 4. Screening hopper; 41. Foreign matter discharge channel; 42. Magnetic adsorption hopper; 43. Magnetic frame; 5. Vibrating screen; 6. Conveying pipeline; 7. Storage hopper; 71. Third high-level gauge; 72. Third low-level gauge; 8. Cooling hopper; 81. Drive component; 82. Agitator blade; 83. Second high-level gauge; 84. Second low-level gauge. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0023] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification, claims and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. For example, a process, method, apparatus, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products or devices.

[0024] The following is in conjunction with the appendix Figures 1-2 This application will be described in further detail.

[0025] refer to Figures 1-2The sieving and feeding system shown includes: a high-speed mixer 1, a lifting hopper 2, a lifting and conveying mechanism 3, a screening hopper 4, a vibrating screen 5, a conveying pipeline 6, and a storage hopper 7. The lifting hopper 2 is located at the material outlet of the high-speed mixer 1. The lifting and conveying mechanism 3 is used to lift the material in the lifting hopper 2 to the screening hopper 4. The conveying pipeline 6 conveys the material in the screening hopper 4 to the storage hopper 7 through vacuum negative pressure conveying. The vibrating screen 5 is installed inside the screening bin 4, and the screening bin 4 has a foreign matter discharge channel 41 on the upper side of the vibrating screen 5.

[0026] Based on the above structure, during processing, there is no need to filter various materials. Various materials are directly placed in the high-speed mixer 1 for mixing. The mixed materials are placed in the lifting hopper 2. The lifting conveyor 3 transports the materials in the lifting hopper 2 to the screening hopper 4. The power mechanism drives the vibrating screen 5 to vibrate and screen the materials. The materials fall below the vibrating screen 5. Foreign objects move towards the foreign object discharge channel 41 after being vibrated by the vibrating screen 5, and are then discharged from the screening hopper 4. Subsequently, the screened materials are transported to the storage hopper 7 through the conveying pipeline 6 for storage.

[0027] like Figure 1 As shown, the lifting and conveying mechanism 3 includes a first conveying screw 31, which extends obliquely upward from the lifting hopper 2 to the screening hopper 4. The discharge port of the first conveying screw 31 is located above the vibrating screen 5. Thus, by rotating the first conveying screw 31, the material in the lifting hopper 2 is continuously conveyed to the screening hopper 4. Furthermore, the inlet of the screening hopper 4 is located at the top of the screening hopper 4, and the discharge port of the first conveying screw 31 is located directly above the inlet of the screening hopper 4. When the material is conveyed to the top of the inlet of the screening hopper 4, it falls from the first conveying screw 31 onto the vibrating screen 5 inside the screening hopper 4.

[0028] like Figure 1 As shown, the lifting and conveying mechanism 3 also includes a second conveying screw 32, which is horizontally arranged in the lifting hopper 2. The outlet of the second conveying screw 32 is connected to the inlet of the first conveying screw 31. In order to enable the material in the lifting hopper 2 to be conveyed through the first conveying screw 31, the material is conveyed to one side of the first conveying screw 31 by the second conveying screw 32, which is horizontally arranged in the lifting hopper 2, to supply material to the first conveying screw 31.

[0029] like Figure 1 and Figure 2As shown, the discharge port of the screening silo 4 is located at the bottom of the screening silo 4. Below the screening silo 4, there is a cooling silo 8. The inlet of the cooling silo 8 is connected to the discharge port of the screening silo 4. The conveying pipeline 6 conveys the material in the cooling silo 8 to the storage silo 7 through vacuum negative pressure (a Roots vacuum pump is installed to provide a negative pressure environment for conveying the material). A magnetic adsorption silo 42 is installed between the discharge port of the screening silo 4 and the inlet of the cooling silo 8. A magnetic frame 43 is installed in the magnetic adsorption silo 42. The magnetic frame 43 is made of magnetic material. In this way, after the material is screened, it will pass through the magnetic frame 43. The metal powder mixed in the material is adsorbed by the magnetic material, further removing impurities in the material and improving the quality of the subsequent plastic finished product. The material after passing through the magnetic adsorption silo 42 enters the cooling silo 8 and is cooled by the cooling mechanism installed in the cooling silo 8. Then it is conveyed to the storage silo 7 through the conveying pipeline 6 for storage. The material is then received from the discharge port of the storage silo 7.

[0030] Further optimization involves enhancing the magnetic attraction capability of the magnetic rack 43 by including several layers of magnetic rods arranged sequentially from top to bottom. Each layer of magnetic rods includes several magnetic rods, which are horizontally arranged so that when the material passes through the magnetic rack 43, any metal powder mixed in can be fully adsorbed by the magnetic rack 43.

[0031] like Figure 2 As shown, the cooling silo 8 is equipped with a drive unit 81 and a stirring blade 82. The stirring blade 82 is disposed inside the cooling silo 8. The drive unit 81 is used to drive the stirring blade 82 to rotate. The lower half of the cooling silo 8 is funnel-shaped. The stirring blade 82 is disposed in the lower half of the cooling silo 8. The outlet of the cooling silo 8 is located at the bottom of the cooling silo 8. The conveying pipeline 6 is connected to the outlet of the cooling silo 8. In this way, the stirring blade 82 can be driven to rotate by the drive unit 81, which can loosen the material in the cooling silo 8 and break the arch, ensuring that the material enters the conveying pipeline 6 smoothly. In this embodiment, the stirring blade 82 is polygonal, preferably trapezoidal.

[0032] like Figure 1 and Figure 2 As shown, in order to monitor the materials in the lifting silo 2, cooling silo 8 and storage silo 7, the lifting silo 2 is equipped with a first high level gauge 21 and a first low level gauge 22; the cooling silo 8 is equipped with a second high level gauge 83 and a second low level gauge 84; and the storage silo 7 is equipped with a third high level gauge 71 and a third low level gauge 72. In this way, by setting high level gauges and low level gauges, the amount of material in the corresponding silos is monitored.

[0033] The above are merely preferred embodiments of this application, and the present invention is not limited to the above embodiments. It is understood that other improvements and variations that can be directly derived or conceived by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included within the protection scope of the present invention.

Claims

1. A sieving and dosing system, characterized in that, include: The high-speed mixer (1), the lifting hopper (2), the lifting and conveying mechanism (3), the screening hopper (4), the vibrating screen (5), the conveying pipeline (6), and the storage silo (7) are provided. The lifting hopper (2) is located at the material outlet of the high-speed mixer (1). The lifting and conveying mechanism (3) is used to lift the material in the lifting hopper (2) into the screening hopper (4). The conveying pipeline (6) conveys the material in the screening hopper (4) into the storage silo (7) through vacuum negative pressure conveying. The vibrating screen (5) is located inside the screening bin (4), and the screening bin (4) has a foreign matter discharge channel (41) on the upper circumferential side of the vibrating screen (5).

2. A sifting and dosing system according to claim 1, characterized in that: The lifting and conveying mechanism (3) includes a first conveying screw (31), which extends obliquely upward from the lifting hopper (2) to the screening hopper (4), and the discharge port of the first conveying screw (31) is located above the vibrating screen (5).

3. A sifting and dosing system according to claim 2, characterized in that: The lifting and conveying mechanism (3) further includes a second conveying screw (32), which is horizontally arranged in the lifting hopper (2), and the outlet of the second conveying screw (32) is connected to the inlet of the first conveying screw (31).

4. A sifting and dosing system according to claim 1, characterized in that: The discharge port of the screening silo (4) is located at the bottom of the screening silo (4). A cooling silo (8) is located below the screening silo (4). The inlet of the cooling silo (8) is connected to the discharge port of the screening silo (4). The conveying pipeline (6) conveys the material in the cooling silo (8) to the storage silo (7) through vacuum negative pressure conveying.

5. A sifting and dosing system according to claim 4, characterized in that: A magnetic adsorption chamber (42) is provided between the discharge port of the screening silo (4) and the inlet of the cooling silo (8). A magnetic frame (43) is provided inside the magnetic adsorption chamber (42), and the magnetic frame (43) is made of magnetic material.

6. A sifting and dosing system according to claim 4, characterized in that: The cooling silo (8) is provided with a drive unit (81) and a stirring blade (82). The stirring blade (82) is located inside the cooling silo (8), and the drive unit (81) is used to drive the stirring blade (82) to rotate.

7. A sifting and dosing system according to claim 6, characterized in that: The lower half of the cooling silo (8) is funnel-shaped, the stirring blade (82) is located in the lower half of the cooling silo (8), the outlet of the cooling silo (8) is located at the bottom of the cooling silo (8), and the conveying pipeline (6) is connected to the outlet of the cooling silo (8).

8. A sifting and dosing system according to claim 1, characterized in that: The lifting hopper (2) is equipped with a first high level gauge (21) and a first low level gauge (22).

9. A sifting and dosing system according to claim 7, characterized in that: The cooling silo (8) is equipped with a second high level gauge (83) and a second low level gauge (84).

10. A sieving and feeding system according to claim 9, characterized in that: The storage silo (7) is equipped with a third high level gauge (71) and a third low level gauge (72).

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