Waste amino molding plastic recycling and impurity removing device

Abstract

The waste amino molding plastic recycling and impurity removing device comprises a device body internally provided with a cavity, a feeding port is formed in the top of the device body, and a discharging port is formed in the bottom of the device body; a crushing mechanism is mounted in the top of the device body and comprises a plurality of crushing rollers; a stirring roller is installed in the bottom of the device body, and spiral stirring blades are fixedly arranged on the peripheral face of the stirring roller. A barrier screen is placed on the inner wall of the device body; a connecting pipe is fixedly arranged on the outer wall of the top of the device body, a rotating joint is mounted on an outlet of the connecting pipe, and a cleaning agent passing pipe is fixedly arranged on an inner ring of the rotating joint; the crushing mechanism composed of a plurality of crushing rollers is mounted at the top of the device body, so that the waste amino molding plastic can be effectively crushed, subsequent impurity removal and recovery treatment are facilitated, and the recovery efficiency and the recovery quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of waste amino acid recycling and impurity removal technology, specifically a waste amino molding compound recycling and impurity removal device. Background Technology

[0002] Amino molding compounds (such as urea-formaldehyde resin and melamine-formaldehyde resin) are widely used in electrical appliances, tableware, and decorative materials. However, due to their thermosetting properties, they are difficult to degrade naturally. The accumulation of large quantities of waste amino molding compounds not only occupies space but can also cause environmental pollution. Traditional recycling methods mainly include mechanical crushing, pyrolysis, or chemical treatment, but these methods often have the following problems:

[0003] (1) Incomplete separation of impurities: Waste amino molding compounds often contain impurities such as metals, fibers, and oil. Traditional crushing and screening alone are insufficient to effectively separate them, which affects the quality of recycled materials.

[0004] (2) Low cleaning efficiency: Some soluble impurities (such as residual solvents, additives, dust, etc.) cannot be removed by physical sieving alone, resulting in a decline in the performance of recycled plastics;

[0005] (3) Difficulty in waste liquid treatment: In the existing cleaning process, the waste liquid has poor fluidity and is easy to settle, resulting in low utilization of cleaning agent and complicated subsequent solid-liquid separation steps;

[0006] To address the aforementioned issues, there is an urgent need for a high-efficiency and energy-saving waste amino molding compound recycling and impurity removal device that can achieve more thorough impurity separation by washing and removing impurities after crushing (such as using water or cleaning agents to dissolve soluble impurities) combined with mechanical agitation, thereby improving the purity and recycling rate of recycled plastics. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a waste amino molding compound recycling and impurity removal device that integrates crushing, screening, washing and fluid agitation, in order to address the shortcomings of the existing technology.

[0008] The technical problem to be solved by this utility model is achieved through the following technical solution: a waste amino molding compound recycling and impurity removal device, which includes a device body with an internal cavity, an inlet at the top of the device body, and an outlet at the bottom of the device body.

[0009] A crushing mechanism for crushing waste amino molding compound is installed inside the top of the device body. The crushing mechanism includes several crushing rollers. The distance between the crushing rollers forms the crushing distance. One end of the crushing roller extends out of the device body and is set as the power output end. A rotary power mechanism I for driving the crushing roller to rotate is also fixed on the device body below the power output end of the crushing roller.

[0010] An agitator roller is installed at the bottom of the device body to agitate the waste liquid and maintain the fluid flow within the device body. Spiral agitator blades are fixed on the outer circumferential surface of the agitator roller.

[0011] A pair of bearing blocks are symmetrically fixed on the inner wall of the device body between the stirring roller and the crushing roller. A receiving groove is opened on the top surface of the bearing blocks, and a barrier screen for blocking waste amino molding compound is placed in the receiving groove.

[0012] A connecting pipe is fixedly installed on the top outer wall of the device body. The bottom of the connecting pipe is the inlet and the top is the outlet. A rotary joint is installed at the outlet of the connecting pipe, and a cleaning agent passage pipe is fixedly installed on the inner ring of the rotary joint.

[0013] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the above-mentioned waste amino molding compound recycling and impurity removal device has a cover hinged at the feed inlet of the device body.

[0014] The technical problem to be solved by this utility model can also be achieved through the following technical solution: In the above-mentioned waste amino molding compound recycling and impurity removal device, one end of the stirring roller extends outside the device body, and a rotating power mechanism II is fixedly installed on the outer wall of the device body above the stirring roller. The rotating power mechanism II is connected to the end of the stirring roller extending outside the device body.

[0015] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the above-mentioned waste amino molding compound recycling and impurity removal device has a cover installed on the side wall of the device body away from the connecting pipe to cover the rotating power mechanism I and the rotating power mechanism II. The edge of the cover is screwed to the outer wall of the device body.

[0016] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the above-mentioned waste amino molding compound recycling and impurity removal device has a retrieval port on the middle side wall of the device body to facilitate the retrieval of waste amino molding compounds.

[0017] The technical problem to be solved by this utility model can also be achieved through the following technical solution: In the above-mentioned waste amino molding compound recycling and impurity removal device, the installation height of the stirring roller is flush with the opening height of the discharge port of the device body.

[0018] Compared with the prior art, the beneficial technical effects of this utility model are:

[0019] (1) By installing a crushing mechanism consisting of several crushing rollers on the top of the device body, waste amino molding plastic can be effectively crushed, which facilitates subsequent impurity removal and recycling, and improves recycling efficiency and recycling quality.

[0020] (2) The stirring roller installed at the bottom of the device body and the spiral stirring blades on its outer periphery can stir the waste liquid, keep the fluid flowing in the device body, help prevent impurities from settling and accumulating, make the impurities more evenly distributed, facilitate subsequent separation operations, and improve the impurity removal effect; In addition, a pair of bearing blocks are symmetrically set on the inner wall of the device body between the stirring roller and the crushing roller, and a blocking screen is placed in the receiving groove on the top surface of the bearing block, which can block the crushed waste amino molding plastic, initially separate the solid and liquid, and the screen placement method is convenient for replacement and cleaning, ensuring the continuity and efficiency of the impurity removal process;

[0021] (3) A connecting pipe is fixedly installed on the top outer wall of the device body. A rotary joint is installed at the outlet of the connecting pipe. A cleaning agent passage pipe is fixedly installed in the inner ring of the rotary joint, which can conveniently introduce cleaning agent into the device to clean the waste amino molding plastic, further remove impurities, and improve the purity of the recycled product. The inlet of the device body is hinged and sealed to prevent impurities, dust and other contaminants from entering during the operation of the device, ensuring the cleanliness of the internal environment of the device, while avoiding the splashing of waste liquid and improving the safety of operation.

[0022] (4) Install a cover on the side wall of the device body away from the connecting pipe to cover the rotating power mechanism I and the rotating power mechanism II. This can effectively protect the power mechanism, prevent it from being affected by external collisions, dust, moisture, etc., extend the service life of the power mechanism, and reduce the equipment failure rate.

[0023] (5) A retrieval port is opened on the middle side wall of the device body to facilitate timely retrieval of waste amino molding compound during the impurity removal process, improve operational flexibility, adjust the recycling progress according to the actual situation, and also help to observe and maintain the inside of the device.

[0024] (6) The installation height of the stirring roller is flush with the opening height of the discharge port of the device body. This design allows the waste liquid and impurities after stirring to be discharged smoothly from the discharge port, ensuring the smooth flow of fluid in the device, improving the efficiency of impurity removal and discharge, and avoiding material residue in the device. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0026] Figure label:

[0027] 1. Device body; 2. Feed inlet; 3. Discharge outlet; 4. Cover; 5. Crushing roller; 6. Rotary power mechanism I; 7. Rotary power mechanism II; 8. Agitator roller; 9. Spiral agitator blades; 10. Cover; 11. Support block; 12. Barrier screen; 13. Retrieval port; 14. Connecting pipe; 15. Cleaning agent passage pipe. Detailed Implementation

[0028] The specific technical solutions of this utility model are further described below with reference to the accompanying drawings, so as to enable those skilled in the art to further understand this utility model, without constituting a limitation on its rights.

[0029] Example 1, referring to Figure 1 A waste amino molding compound recycling and impurity removal device includes a device body 1 with an internal cavity. The device body 1 is formed into a generally square shell structure. A feed port 2 is provided at the top of the device body 1 for adding waste amino molding compound. A discharge port 3 is provided at the bottom of the device body 1 for discharging cleaning waste liquid containing impurities. A cover 4 is hinged to the feed port 2 of the device body 1. The cover 4 is formed into a generally circular cover structure.

[0030] A crushing mechanism for crushing waste amino molding compound is installed inside the top of the device body 1. The crushing mechanism includes several crushing rollers 5, which are roughly cylindrical roller structures. The two ends of the crushing rollers 5 can be rotatably connected to the inner wall of the device body 1 through rotary bearings. Spiral crushing blades are fixed on their outer circumferential surfaces. The spacing between the crushing rollers 5 forms the crushing spacing. One end of the crushing rollers 5 extends out of the device body 1 and is set as the power output end. A rotary power mechanism I6 for driving the crushing rollers 5 to rotate is also fixed on the device body 1 below the power output end of the crushing rollers 5. The rotary power mechanism I6 and the crushing rollers 5 can be connected by a toothed belt drive. When a toothed belt connection is used, a gear can be fixed on the outer circumferential surface of the end of the crushing rollers 5 that extends out of the device body 1. The rotary power mechanism I6 and the rotary power mechanism II7 described below can be rotary motors, etc., and their models and specifications can be selected according to the usage requirements.

[0031] An agitator roller 8 is installed at the bottom of the device body 1 to agitate the waste liquid and maintain the fluid flow inside the device body 1. The agitator roller 8 is formed into a horizontally arranged cylindrical roller structure. Spiral agitator blades 9 are fixed on the outer circumferential surface of the agitator roller 8. One end of the agitator roller 8 extends outside the device body 1. A rotary power mechanism II 7 is fixedly installed on the outer wall of the device body 1 above the agitator roller 8. The rotary power mechanism II 7 is connected to the end of the agitator roller 8 extending outside the device body 1. It can be a toothed belt connection. When a toothed belt connection is used, an external gear can be fixed on the outer circumferential surface of the end of the agitator roller 8 extending outside the device body 1. The agitation of the agitator roller 8 keeps the fluid at the discharge port 3 and the bottom of the device body 1 agitated, thereby increasing the cleaning and impurity removal effect of the waste ammonia abrasive.

[0032] To prevent the rotary power mechanism I6 and rotary power mechanism II7 from being affected by external collisions, dust, moisture, etc., a cover 10 is installed on the side wall of the device body 1 away from the connecting pipe to cover the rotary power mechanism I6 and rotary power mechanism II7. The edge of the cover 10 is screwed to the outer wall of the device body 1.

[0033] In order to facilitate the smooth discharge of waste liquid and impurities after stirring from the outlet 3 and ensure the smooth flow of fluid in the device, the installation height of the stirring roller 8 is flush with the opening height of the outlet 3 of the device body 1.

[0034] A pair of bearing blocks 11 are symmetrically fixed on the inner wall of the device body 1 between the stirring roller 8 and the crushing roller 5. The bearing blocks 11 are formed into a roughly square block structure. A receiving groove is opened on the top surface of the bearing blocks 11. The receiving groove is a square groove structure. A barrier screen 12 for blocking waste amino molding compound is placed in the receiving groove. The screen aperture of the barrier screen 12 can be selected according to the usage requirements. A retrieval port 13 is opened on the middle side wall of the device body 1 to facilitate the retrieval of waste amino molding compound. The retrieval port 13 can be a square opening.

[0035] A connecting pipe 14 is fixedly installed on the top outer wall of the device body 1. The connecting pipe 14 is a vertically arranged pipe structure. The bottom of the connecting pipe 14 is the inlet and the top is the outlet. A rotary joint is installed on the outlet of the connecting pipe 14. The rotary joint is an existing technology and can be selected according to the usage requirements. A cleaning agent passage pipe 15 is fixedly installed on the inner ring of the rotary joint. The top of the cleaning agent passage pipe 15 is horizontally arranged. One end of the cleaning agent passage pipe 15 is connected to the connecting pipe 14, and the other end is located directly above the feed inlet 2 at the top of the device body 1 after rotation.

[0036] The working principle of the waste amino molding compound recycling and impurity removal device in Example 1 is as follows:

[0037] First, start the rotary power mechanism I6 and rotary power mechanism II7 to make the crushing roller 5 and stirring roller 8 start to rotate. Open the cover 4 at the feed port 2 and slowly pour the waste amino molding compound into the device body 1. After the waste amino molding compound enters the device body 1, it is crushed into small pieces by the crushing roller 5. The crushed waste amino molding compound falls under the action of gravity. When it passes through the barrier screen 12, some liquid and fine impurities will fall through the screen, while larger solid particles will remain above the screen. At this time, the cleaning agent is supplied to the connecting pipe 14 through the external pipe, so that the cleaning agent enters the device body 1 through the cleaning agent pipe 15. The cleaning agent comes into full contact with the crushed waste amino molding compound and cleans the impurities on its surface. During the cleaning, the spiral stirring blade 9 stirs the waste liquid to keep the fluid flowing in the device body 1, so that the cleaning agent can come into uniform contact with the waste amino molding compound and improve the cleaning effect.

[0038] During the cleaning process, impurities fall with the waste liquid and enter the bottom of the device body 1 through the blocking screen 12. The stirring action of the stirring roller 8 can prevent impurities from settling and accumulating, making the impurities more evenly distributed. If necessary, the waste amino molding compound can be retrieved through the retrieval port 13 on the middle side wall of the device body 1 using a suitable tool such as a scoop net, and taken out of the device for subsequent recycling. After the impurity removal and cleaning process is completed, the discharge port 3 at the bottom of the device body 1 is opened to discharge the waste liquid. Since the installation height of the stirring roller 8 is flush with the opening height of the discharge port 3, the waste liquid and impurities can be discharged smoothly from the discharge port 3.

Claims

1. A waste amino molding compound recycling and impurity removal device, characterized in that: It includes a device body with an internal cavity, an inlet at the top of the device body, and an outlet at the bottom of the device body. A crushing mechanism for crushing waste amino molding compound is installed inside the top of the device body. The crushing mechanism includes several crushing rollers. The distance between the crushing rollers forms the crushing distance. One end of the crushing roller extends out of the device body and is set as the power output end. A rotary power mechanism I for driving the crushing roller to rotate is also fixed on the device body below the power output end of the crushing roller. An agitator roller is installed at the bottom of the device body to agitate the waste liquid and maintain the fluid flow within the device body. Spiral agitator blades are fixed on the outer circumferential surface of the agitator roller. A pair of bearing blocks are symmetrically fixed on the inner wall of the device body between the stirring roller and the crushing roller. A receiving groove is opened on the top surface of the bearing blocks, and a barrier screen for blocking waste amino molding compound is placed in the receiving groove. A connecting pipe is fixedly installed on the top outer wall of the device body. The bottom of the connecting pipe is the inlet and the top is the outlet. A rotary joint is installed at the outlet of the connecting pipe, and a cleaning agent passage pipe is fixedly installed on the inner ring of the rotary joint.

2. The waste amino molding compound recycling and impurity removal device according to claim 1, characterized in that: The feed inlet of the device body is hinged with a cover.

3. The waste amino molding compound recycling and impurity removal device according to claim 1, characterized in that: One end of the agitating roller extends outside the device body. A rotary power mechanism II is fixedly installed on the outer wall of the device body above the agitating roller. The rotary power mechanism II is connected to the end of the agitating roller that extends outside the device body.

4. The device according to claim 3, wherein the device is characterized by: A cover is installed on the side wall of the device body away from the connecting pipe to cover the rotary power mechanism I and the rotary power mechanism II. The edge of the cover is screwed to the outer wall of the device body.

5. The device for removing impurities from waste and old amino molding compounds according to claim 1, characterized in that: The device body has a retrieval port on the middle side wall to facilitate the retrieval of waste amino molding compound.

6. The device for removing impurities from waste and old amino molding compounds according to claim 1, characterized in that: The installation height of the agitator roller is flush with the opening height of the discharge port of the device body.

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