Automatic iron impurity removing mechanism in PMMA (polymethyl methacrylate) recycling and granulating equipment

By introducing an automatic iron impurity removal mechanism into the PMMA recycling and granulation equipment, and using a permanent magnet ring and cleaning components to automatically screen out iron impurities, the problem of low iron impurity removal efficiency in the existing technology is solved, achieving efficient iron impurity removal and product quality improvement.

CN223918379UActive Publication Date: 2026-02-17SUZHOU NAITEFU MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202520435464.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-02-17
Estimated Expiration
2035-03-13

AI Technical Summary

Technical Problem

Existing PMMA recycling and granulation equipment has low efficiency in removing iron impurities, leading to increased equipment wear and decreased product quality. Manual sorting is inefficient and prone to omissions.

Method used

An automatic iron impurity removal mechanism is adopted, which uses a permanent magnet ring to adsorb iron impurities and automatically removes them by rotating a gear driven by a motor. Combined with a cleaning component, the iron impurities on the surface of the permanent magnet ring are automatically scraped off.

Benefits of technology

It improves the efficiency of iron impurity removal, enhances product quality, reduces labor maintenance costs, and ensures stable production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic iron impurity removal mechanism in PMMA (polymethyl methacrylate) recovery and granulation equipment, and relates to the technical field of PMMA recovery and granulation equipment, the automatic iron impurity removal mechanism comprises an impurity removal device, the impurity removal device comprises a fixed shell, a feed pipe, a motor, a gear and a discharge pipe, and a permanent magnet ring is arranged in the fixed shell. The motor drives the gear to rotate, so that the gear ring and the permanent magnet ring are driven to rotate in the fixed shell, iron impurities in PMMA raw materials are adsorbed by the permanent magnet ring, after the electromagnetic valve is opened, the PMMA raw materials in the permanent magnet ring are continuously discharged through the discharging hole and the discharging pipe, and the permanent magnet ring passes through the magnetic separation channel of the high-strength permanent magnet, so that the PMMA raw materials are separated. The device can efficiently adsorb iron impurities in the PMMA raw materials, is high in iron removal efficiency, effectively improves the product quality, does not need to manually sort the PMMA raw materials, improves the removal efficiency of the iron impurities in the PMMA raw materials, is not liable to omit, and guarantees the production quality of subsequent PMMA particles.
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Description

TECHNICAL FIELD

[0001] The utility model relates to PMMA recycling granulating equipment technical field especially relates to a kind of automatic iron impurity removal mechanism in PMMA recycling granulating equipment. BACKGROUND

[0002] Acrylic, also called PMMA or organic glass, is an important plastic high molecular material developed early, in PMMA recycling granulating process, raw material often mixed with iron impurities, these iron impurities if not timely removed, on the one hand, the key components of granulating equipment can be seriously abraded, increase equipment maintenance cost, on the other hand, PMMA particles containing iron impurities in subsequent processing molding, can lead to product defect, strength reduction and other quality problems, seriously affect product quality and market competitiveness.

[0003] For example, Chinese patent CN219600083U discloses an acrylic granulator, which comprises a granulator main machine and a guide mechanism.

[0004] At present, the existing PMMA recycling granulating equipment removes iron impurities mostly by manual sorting, which screens out iron impurities in PMMA particles, and the manual sorting is low in efficiency, high in labor intensity and easy to miss, affecting the production quality of subsequent PMMA particles, and the automatic iron impurity removal mechanism in PMMA recycling granulating equipment is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problems in the prior art and proposes an automatic iron impurity removal mechanism in PMMA recycling granulating equipment.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an automatic iron impurity removal mechanism in PMMA recycling granulating equipment, which comprises a dedusting device, the dedusting device comprises a fixed shell, a feeding pipe, a motor, a gear and a discharge pipe, a permanent magnet ring is arranged in the interior of the fixed shell, a gear ring is rotatably connected to the inner wall of one end of the fixed shell, and a movable ring is rotatably connected to the inner wall of the other end of the fixed shell, one end of the permanent magnet ring is fixedly installed with one end of the gear ring, and the other end of the permanent magnet ring is fixedly installed with one end of the movable ring, the output end of the motor is fixedly connected with one end of the gear, the outer side of the gear is engaged with the outer side of the gear ring, the outer side of the permanent magnet ring is provided with a discharge hole, the top end of the discharge pipe is fixedly communicated with the bottom of the fixed shell, and the bottom end of the discharge pipe is fixedly connected with a solenoid valve, and one end of the fixed shell is fixedly connected with one end of the feeding pipe.

[0007] Preferably, one end of the fixed shell is fixedly connected with a support pipe, and the bottom of the fixed shell is provided with a base.

[0008] Preferably, the outer side of the supporting pipe is fixedly connected with a cleaning assembly, and the cleaning assembly comprises a pneumatic cylinder, a mounting plate and a cleaning plate.

[0009] Preferably, the inner side of the mounting plate is welded with one end of the supporting pipe, and the outer side of the mounting plate is fixedly installed with one end of the pneumatic cylinder, and one end of the pneumatic cylinder is provided with a driving rod.

[0010] Preferably, the cleaning plate is movably arranged in the permanent magnet ring, one side of the cleaning plate is fixedly connected with one end of the driving rod, and the outer edge of the cleaning plate is fixedly connected with a rubber ring.

[0011] Preferably, the top of the base is fixedly connected with a controller, and the bottom end of the motor is fixedly installed with the top end of the feeding pipe.

[0012] Preferably, one end of the base is fixedly installed with the outer side of the feeding pipe, and the other end of the base is fixedly installed with the outer side of the supporting pipe.

[0013] Compared with the prior art, the utility model has the advantages and positive effects that:

[0014] 1、In the utility model, through setting up the impurity removing device, the PMMA raw materials enter the permanent magnet ring through the feeding pipe, the gear is driven to rotate by the motor, so that the gear ring and the permanent magnet ring rotate in the fixed shell, the iron impurities in the PMMA raw materials are adsorbed by the permanent magnet ring, the PMMA raw materials in the permanent magnet ring are continuously discharged through the discharge hole and the discharge pipe after opening the electromagnetic valve after adsorbing for a period of time, and the iron impurities are adsorbed on the inner wall of the permanent magnet ring, the permanent magnet ring passes through the magnetic separation channel of the high-strength permanent magnet, can efficiently adsorb the iron impurities in the PMMA raw materials, the iron removal efficiency is high, effectively improves the product quality, and manual sorting of the PMMA raw materials is not needed, so that the iron impurities in the PMMA particles can be automatically screened out, the removal efficiency of the iron impurities in the PMMA raw materials is improved, and the production quality of the subsequent PMMA particles is ensured.

[0015] 2、In the utility model, the cleaning assembly is increased, the device is used for removing the impurities of the PMMA raw materials for a period of time, the pneumatic cylinder is opened through the controller, the cleaning plate is driven to move along the permanent magnet ring through the driving rod, the cleaning plate moves from one end of the supporting pipe to the feeding pipe, the cleaning plate scrapes off the iron impurities and discharges the iron impurities from the feeding pipe, and the cleaning plate returns to the original position through the control of the pneumatic cylinder, so that the iron impurities on the surface of the permanent magnet ring are conveniently cleaned, the production efficiency is improved, and the manual maintenance cost is reduced. DRAWINGS

[0016] Figure 1 A three-dimensional structure schematic view of the automatic iron impurity removing mechanism in the PMMA recycling and granulating equipment is provided.

[0017] Figure 2 A top view structural schematic diagram of the automatic iron impurity removing mechanism in the PMMA recycling and granulating equipment is provided in the utility model.

[0018] Figure 3 A bottom view structural schematic diagram of the permanent magnet ring of the automatic iron impurity removing mechanism in the PMMA recycling and granulating equipment is provided in the utility model.

[0019] Figure 4 A front view sectional view of the automatic iron impurity removing mechanism in the PMMA recycling and granulating equipment is provided in the utility model.

[0020] Legend: 1, impurity removing device; 2, cleaning assembly; 11, fixed shell; 12, feeding pipe; 13, supporting pipe; 14, base; 15, motor; 16, gear; 17, discharging pipe; 18, controller; 19, gear ring; 110, movable ring; 111, permanent magnet ring; 112, discharging hole; 113, electromagnetic valve; 21, air cylinder; 22, mounting plate; 23, cleaning plate; 24, rubber ring; 25, driving rod. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model will be further described below in combination with the drawings and examples.

[0022] In the following description, a lot of specific details are set forth in order to facilitate a thorough understanding of the utility model, however, the utility model can also be implemented in other ways different from the description herein, therefore, the utility model is not limited to the specific examples disclosed in the following disclosure.

[0023] Example one: as Figure 1 - Figure 4The utility model provides a kind of automatic iron impurity removal mechanism in PMMA recycling granulating equipment, including impurity removal device 1, impurity removal device 1 includes fixed shell 11, feed pipe 12, motor 15, gear 16 and discharge pipe 17, the inside of fixed shell 11 is provided with permanent magnet ring 111, the inner wall of one end of fixed shell 11 is rotatably connected with gear ring 19, and the inner wall of another end of fixed shell 11 is rotatably connected with movable ring 110, one end of permanent magnet ring 111 is fixedly installed with one end of gear ring 19, and another end of permanent magnet ring 111 is fixedly installed with one end of movable ring 110, the output end of motor 15 is fixedly connected with one end of gear 16, the outside of gear 16 is engaged with the outside of gear ring 19, the outside of permanent magnet ring 111 is penetrated with discharge hole 112, the top of discharge pipe 17 is fixedly communicated with the bottom of fixed shell 11, and the bottom of discharge pipe 17 is fixedly connected with electromagnetic valve 113, one end of fixed shell 11 is fixedly connected with one end of feed pipe 12, one end of fixed shell 11 is fixedly connected with support pipe 13, and the bottom of fixed shell 11 is provided with base 14.

[0024] The specific settings and effects of the embodiment will be described below: by setting impurity removal device 1, PMMA raw materials enter the inside of permanent magnet ring 111 through feed pipe 12, start motor 15 by controller 18, motor 15 drives gear 16 to rotate, gear 16 drives gear ring 19 and permanent magnet ring 111 to rotate in the inside of fixed shell 11, iron impurities in PMMA raw materials are adsorbed by permanent magnet ring 111, after a period of adsorption, start electromagnetic valve 113 by controller 18, with the rotation of permanent magnet ring 111, PMMA raw materials in the inside of permanent magnet ring 111 are continuously discharged through discharge hole 112 and discharge pipe 17, while iron impurities are adsorbed on the inner wall of permanent magnet ring 111, until PMMA raw materials in the inside of permanent magnet ring 111 are discharged completely, PMMA raw materials after removing iron impurities can be conveyed to PMMA recycling granulating equipment for granulating processing, permanent magnet ring 111 can efficiently adsorb iron impurities in PMMA raw materials through high-strength permanent magnet magnetic selection channel, to ensure the production quality of subsequent PMMA particles.

[0025] Embodiment two: as Figure 2 And Figure 4As shown, the outer side of the support pipe 13 is fixedly connected with the cleaning assembly 2, the cleaning assembly 2 comprises a cylinder 21, a mounting plate 22 and a cleaning plate 23, the inner side of the mounting plate 22 is welded with one end of the support pipe 13, and the outer side of the mounting plate 22 is fixedly installed with one end of the cylinder 21, one end of the cylinder 21 is provided with a driving rod 25, the cleaning plate 23 is movably arranged in the inside of the permanent magnet ring 111, one side of the cleaning plate 23 is fixedly connected with one end of the driving rod 25, and the outer edge of the cleaning plate 23 is fixedly connected with a rubber ring 24, the top of the base 14 is fixedly connected with a controller 18, the bottom end of the motor 15 is fixedly installed with the top end of the feeding pipe 12, one end of the base 14 is fixedly installed with the outer side of the feeding pipe 12, and the other end of the base 14 is fixedly installed with the outer side of the support pipe 13.

[0026] The effect of the whole embodiment is that by increasing the cleaning assembly 2, the cylinder 21 drives the cleaning plate 23 to move along the inside of the permanent magnet ring 111 through the driving rod 25, the cleaning plate 23 moves from one end of the support pipe 13 to the feeding pipe 12, the cleaning plate 23 scrapes off the iron impurities and discharges from the feeding pipe 12, and the cylinder 21 controls the cleaning plate 23 to return to the original position, so that the iron impurities on the surface of the permanent magnet ring 111 are conveniently cleaned.

[0027] The use method and working principle of the device are as follows: the impurity removing device 1 is installed at a suitable position of a raw material conveying pipeline of a PMMA recycling and granulating equipment, it is ensured that the PMMA raw material can smoothly pass through the impurity removing device 1, the cleaning assembly 2 is installed, the cleaning plate 23 is arranged in the inside of the permanent magnet ring 111, a circle of rubber rings 24 is arranged at the outer edge of the cleaning plate 23, the rubber rings 24 have a certain gap with the inner surface of the permanent magnet ring 111, it is ensured that the iron impurities can be effectively scraped off and the permanent magnet ring 111 is not damaged;

[0028] When the device is running, the PMMA raw material enters the inside of the permanent magnet ring 111 through the feeding pipe 12, the controller 18 is started to start the motor 15, the motor 15 drives the gear 16 to rotate, the gear 16 drives the gear ring 19 and the permanent magnet ring 111 to rotate in the fixed shell 11, the iron impurities in the PMMA raw material are adsorbed by the permanent magnet ring 111, after a period of adsorption, the electromagnetic valve 113 is started by the controller 18, along with the rotation of the permanent magnet ring 111, the PMMA raw material in the inside of the permanent magnet ring 111 is continuously discharged through the discharge hole 112 and the discharge pipe 17, while the iron impurities are adsorbed on the inner wall of the permanent magnet ring 111, until the PMMA raw material in the inside of the permanent magnet ring 111 is completely discharged, the PMMA raw material after removing the iron impurities can be conveyed to the PMMA recycling and granulating equipment for granulating processing; By setting the impurity removal device 1, the permanent magnet ring 111 passes through the magnetic selection channel of the high-strength permanent magnet, and can efficiently adsorb the iron impurities in the PMMA raw material, the iron removal efficiency is high, the product quality is effectively improved, manual sorting of the PMMA raw material is not needed, the iron impurities in the PMMA particles can be automatically screened out, the iron impurity removal efficiency in the PMMA raw material is improved, meanwhile, it is not easy to miss, and the production quality of the subsequent PMMA particles is ensured;

[0029] When the device removes the impurities from the PMMA raw material for a period of time, the cylinder 21 is started by the controller 18, the cylinder 21 drives the cleaning plate 23 to move along the inside of the permanent magnet ring 111 through the driving rod 25, the cleaning plate 23 is moved from one end of the supporting pipe 13 to the feeding pipe 12, the cleaning plate 23 scrapes off and discharges the iron impurities from the feeding pipe 12, the cylinder 21 controls the cleaning plate 23 to return to the original position, and the cycle is repeated, so that the automatic iron removal function is realized, the iron impurities on the surface of the permanent magnet ring 111 are conveniently cleaned, the production efficiency is improved, and the manual maintenance cost is reduced.

[0030] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms, and any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application still belongs to the protection scope of the technical scheme of the present application.

Claims

1. A mechanism for automatic removal of iron impurities in a PMMA recycling granulation device, characterized by: The utility model provides an impurity removing device, including the impurity removing device (1), the impurity removing device (1) includes fixed shell (11), feed pipe (12), motor (15), gear (16) and discharge pipe (17), the inside of fixed shell (11) is provided with permanent magnet ring (111), the inner wall of one end of fixed shell (11) is rotatably connected with gear ring (19), and the inner wall of the other end of fixed shell (11) is rotatably connected with movable ring (110), one end of permanent magnet ring (111) is fixedly installed with one end of gear ring (19), and the other end of permanent magnet ring (111) is fixedly installed with one end of movable ring (110), the output of motor (15) is fixedly connected with one end of gear (16), the outside of gear (16) is engaged with the outside of gear ring (19), the outside of permanent magnet ring (111) is equipped with discharge hole (112) in -through, the top of discharge pipe (17) is fixedly communicated with the bottom of fixed shell (11), and the bottom of discharge pipe (17) is fixedly connected with electromagnetic valve (113), one end of fixed shell (11) is fixedly connected with one end of feed pipe (12).

2. The automatic iron impurity removal mechanism in the PMMA recycling and granulation equipment according to claim 1, characterized in that: One end of the fixed shell (11) is fixedly connected with the support pipe (13), and the bottom of the fixed shell (11) is provided with the base (14).

3. The automatic iron impurity removal mechanism in the PMMA recycling and granulation equipment according to claim 2, characterized in that: The outside of the support pipe (13) is fixedly connected with the cleaning assembly (2), and the cleaning assembly (2) comprises a cylinder (21), a mounting plate (22) and a cleaning plate (23).

4. The automatic iron impurity removal mechanism in the PMMA recycling and granulation equipment according to claim 3, characterized in that: The inside of the mounting plate (22) is welded with one end of the support pipe (13), and the outside of the mounting plate (22) is fixedly installed with one end of the cylinder (21), and one end of the cylinder (21) is provided with a driving rod (25).

5. The automatic iron impurity removal mechanism in the PMMA recycling and granulation equipment according to claim 3, characterized in that: The cleaning plate (23) is movably arranged in the inside of the permanent magnet ring (111), one side of the cleaning plate (23) is fixedly connected with one end of the driving rod (25), and the outer edge of the cleaning plate (23) is fixedly connected with a rubber ring (24).

6. The automatic iron impurity removal mechanism in the PMMA recycling and granulation equipment according to claim 2, characterized in that: The top of the base (14) is fixedly connected with the controller (18), and the bottom end of the motor (15) is fixedly installed with the top end of the feed pipe (12).

7. The automatic iron impurity removal mechanism in the PMMA recycling and granulation equipment according to claim 2, characterized in that: One end of the base (14) is fixedly installed with the outside of the feed pipe (12), and the other end of the base (14) is fixedly installed with the outside of the support pipe (13).

Citation Information

Patent Citations

  • Acrylic granulator

    CN219600083U