Plastic waste recovery and fragmentation equipment

Abstract

The invention provides plastic waste recovery and fragmentation equipment, and relates to the technical field of waste recovery devices.The plastic waste recovery and fragmentation equipment comprises a box body, a pair of fragmentation rollers and a grinding roller are arranged above the box body, an enzymatic degradation inner cavity is formed in the position, below the grinding roller, of the box body, and a magnetized particle bearing cylinder is installed in the enzymatic degradation inner cavity in a fixed-axis rotating mode; magnetic adsorption grooves are formed in the outer edge of the magnetized particle bearing cylinder in an annular array mode, magnetic enzymatic degradation particles are placed in the magnetic adsorption grooves, the liquid spraying plates are fixedly installed in the tangential direction above the grinding roller, and the surface of the grinding roller is cleaned through liquid pumped out by the liquid spraying plates. According to the invention, the magnetic enzyme degradation particles are used for biodegradation of crushed plastic, compared with the existing physical crushing mode, the biodegraded substances have higher environmental friendliness, the magnetic adsorption characteristic of the magnetic enzyme degradation particles is fully utilized, the magnetic enzyme degradation particles are convenient to recycle and reuse, and the method is more energy-saving and environment-friendly.

Description

Technical Field

[0001] The present invention relates to the technical field of waste recycling devices, and in particular to a plastic waste recycling and crushing device. Background Technique

[0002] A plastic bottle crusher with the publication number of "CN204365397U" in the prior art includes: a base, and a crushing device arranged on the base. The crushing device includes: a crushing body, and a crushing roller arranged inside the crushing body. A crushing cavity is arranged in the middle of the crushing body, a feeding cavity is arranged at the upper part of the crushing body, and a discharging cavity communicated with the crushing cavity is arranged at the bottom of the crushing body. The crushing roller is arranged in the crushing cavity. There are two crushing rollers, and sharp knives are arranged on the surface of the crushing rollers. The two crushing rollers are meshed with each other. The sharp knives are obliquely arranged on the surface of the crushing rollers. A cleaning device is arranged at the bottom of the crushing cavity. A gear set for driving the crushing roller to rotate is arranged on the crushing body, and the gear set is connected with a crushing motor arranged on the base. This device squeezes and pierces the plastic bottle through two meshed crushing rollers, and has a simple structure and good piercing and squeezing effect. The cleaning device can scrape off the plastic sleeved on the sharp knives to prevent the plastic bottle from jamming the crushing roller. The oblique arrangement of the sharp knives can quickly grab the plastic bottle and improve the production efficiency. However, there are still obvious defects in the use of the above device: both the above device and the plastic crushers in the prior art use crushing rollers and crushing tools for physical crushing. Although this crushing method has a high crushing efficiency, the crushed plastic particles still cannot be directly put into the natural environment, and the above crushing treatment method is relatively single and cannot meet higher environmental protection treatment requirements. Summary of the Invention

[0003] The purpose of the present invention is to provide a plastic waste recycling and crushing device to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the present invention provides the following technical solutions: A plastic waste recycling and crushing device, including a box body, a pair of crushing rollers and grinding rollers are arranged above the box body, the pair of grinding rollers are arranged below the crushing rollers, an enzyme degradation inner cavity is arranged in the box body below the grinding rollers, a magnetization particle bearing cylinder is rotatably installed on a fixed axis in the enzyme degradation inner cavity, a magnetic adsorption groove is annularly arranged on the outer edge of the magnetization particle bearing cylinder, magnetic enzyme degradation particles are placed in the magnetic adsorption groove, an electromagnet for adsorbing the magnetic enzyme degradation particles is arranged in the magnetic adsorption groove, a storage groove is correspondingly arranged on one side of the magnetization particle bearing cylinder where the magnetic adsorption groove is located, a blocking piece is movably installed in each storage groove, and a plurality of the blocking pieces are fixedly installed on an adjustment turntable. By rotating the adjustment turntable around its own axis by a preset angle, a plurality of the blocking pieces are driven to move synchronously. When the blocking piece moves out of the storage groove and is located above the magnetic adsorption groove, the magnetic enzyme degradation particles are restricted inside the storage groove; A pump liquid screw is also fixedly installed on the shaft rod on one side of the magnetization particle bearing cylinder, the pump liquid screw is movably inserted into a liquid supply sleeve, the liquid supply sleeve is provided with annularly arranged filter holes, the liquid supply sleeve is fixedly installed on one side of the enzyme degradation inner cavity, and the liquid supply sleeve is communicated with a pair of liquid spraying plates arranged between the crushing rollers and the grinding rollers through a connected liquid supply pipe. The pair of liquid spraying plates are fixedly installed in the tangential direction above the grinding rollers, and the liquid pumped out by the liquid spraying plates is used to clean the surface of the grinding rollers.

[0005] Preferably, the shaft rod on the side of the magnetization particle bearing cylinder away from the pump liquid screw is fixedly connected to the driving shaft of a rotating motor fixedly installed on the box body, and the magnetization particle bearing cylinder is driven to rotate by the rotation of the rotating motor.

[0006] Preferably, stirring blades are installed on the shaft rods on both sides of the magnetization particle bearing cylinder.

[0007] Preferably, bearing sleeve rods are also installed on the shaft rods on both sides of the magnetization particle bearing cylinder, the end of the bearing sleeve rod away from the magnetization particle bearing cylinder is fixedly installed on a connecting cross frame, and both ends of the connecting cross frame are fixedly installed on the inner wall of the box body above the enzyme degradation inner cavity.

[0008] Preferably, mutually meshing tooth discs are fixedly installed on the roller shafts of the pair of crushing rollers or grinding rollers, sprockets are fixedly installed on the roller shafts on one side of the crushing rollers and the grinding rollers, the upper and lower sprockets are connected by a chain, and the sprockets are also connected to a driving sprocket installed on the driving shaft of a crushing motor. The crushing rollers and the grinding rollers are driven to rotate synchronously by the rotation of the crushing motor, and the crushing motor is fixedly installed outside the box body.

[0009] Preferably, a through hole for inserting a shaft rod on one side of the magnetization particle carrying cylinder is provided at the axis of the adjusting turntable. An adjusting motor is fixedly installed on one side of the magnetization particle carrying cylinder close to the adjusting turntable. An adjusting gear is fixedly installed on the driving shaft of the adjusting motor. The adjusting gear meshes with the teeth provided on the adjusting turntable. The adjusting turntable is driven to rotate by a preset angle through the rotation of the adjusting motor.

[0010] Preferably, a blanking hole is further provided at the bottom of the box body. A cut-off ball valve is rotatably installed on a fixed shaft in the blanking hole. The cut-off ball valve is fixedly connected to the driving shaft of the blanking motor.

[0011] Preferably, the magnetic enzyme degradation particles use Fe4O3 - SiO2 core - shell nanoparticles as enzyme carriers, and the Fe4O3 - SiO2 core - shell nanoparticles carry PET enzyme and LCC enzyme.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention uses magnetic enzyme degradation particles for the biodegradation of broken plastics. Compared with the existing physical fragmentation methods, the substances after biodegradation have higher environmental friendliness, and the magnetic adsorption characteristics of the magnetic enzyme degradation particles are fully utilized, facilitating their recycling and reuse, and being more energy - saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic cross - sectional view of the overall structure of the present invention from the front view angle; Figure 2 is a schematic cross - sectional view of the overall structure of the present invention from the side view angle; Figure 3 is a three - dimensional schematic view of the connection structure of the magnetization particle carrying cylinder of the present invention; Figure 4 is a schematic cross - sectional view of the magnetization particle carrying cylinder of the present invention.

[0014] In the figure: 1 box body, 2 crushing roller, 3 grinding roller, 4 enzyme degradation inner cavity, 5 magnetization particle carrying cylinder, 6 magnetic adsorption groove, 7 storage groove, 8 blocking piece, 9 adjusting turntable, 10 shaft rod, 11 pump liquid screw, 12 liquid supply sleeve, 13 filter hole, 14 liquid supply pipe, 15 liquid spraying plate, 16 rotating motor, 17 stirring blade, 18 bearing sleeve rod, 19 connecting cross - frame, 20 tooth disc, 21 sprocket, 22 chain, 23 driving sprocket, 24 adjusting gear, 25 opening and closing motor, 26 opening and closing ball valve. DETAILED DESCRIPTION OF THE INVENTION

[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0016] Please refer to Figures 1-4 , the present invention provides a technical solution: Embodiment 1: A plastic waste recycling and crushing device includes a box body 1. Above the box body 1, a pair of crushing rollers 2 and grinding rollers 3 are provided. The pair of grinding rollers 3 are arranged below the crushing rollers 2. An enzyme degradation inner cavity 4 is arranged in the box body below the grinding rollers 3. A magnetization particle bearing cylinder 5 is rotatably installed on a fixed axis in the enzyme degradation inner cavity 4. Magnet adsorption grooves 6 are annularly arranged at the outer edge of the magnetization particle bearing cylinder 5. Magnetic enzyme degradation particles are placed in the magnet adsorption grooves 6. Electromagnets for adsorbing the magnetic enzyme degradation particles are arranged in the magnet adsorption grooves 6. Receiving grooves 7 are correspondingly arranged on one side of the magnetization particle bearing cylinder 5 where the magnet adsorption grooves 6 are located. Blocking pieces 8 are movably installed in the receiving grooves 7. A plurality of blocking pieces 8 are fixedly installed on an adjusting turntable 9. By rotating the adjusting turntable 9 around its own axis by a preset angle, a plurality of blocking pieces 8 are driven to move synchronously. When the blocking pieces 8 move out of the receiving grooves 7 and are located above the magnet adsorption grooves 6, the magnetic enzyme degradation particles are restricted inside the receiving grooves 7; A pump liquid screw 11 is also fixedly installed on a shaft rod 10 on one side of the magnetization particle bearing cylinder 5. The pump liquid screw 11 is movably inserted into a liquid supply sleeve 12. The liquid supply sleeve 12 is provided with annularly arranged filter holes 13. The liquid supply sleeve 12 is fixedly installed on one side of the enzyme degradation inner cavity 4. The liquid supply sleeve 12 is communicated with a pair of liquid spraying plates 15 arranged between the crushing rollers 2 and the grinding rollers 3 through a connected liquid supply pipe 14. The pair of liquid spraying plates 15 are fixedly installed in the tangential direction above the grinding rollers 3. The liquid pumped out by the liquid spraying plates 15 is used to clean the surface of the grinding rollers 3.

[0017] In this embodiment, the box body 1 serves as a bearing mechanism for various components. A pair of crushing rollers 2 and grinding rollers 3 are installed on its upper part. The recycled plastics are crushed and ground into fine particles by the crushing rollers 2 and grinding rollers 3 respectively. An enzyme degradation inner cavity 4 is arranged in the box body below the grinding roller 3. A degradation solution is placed in the enzyme degradation inner cavity 4, with deionized water as the main solvent, and a buffer, a stabilizer and a surfactant are added to the solvent. Magnetic enzyme degradation particles are used as biodegradable enzymes for the biodegradation of plastics. Among them, the magnetic enzyme degradation particles use Fe4O3-SiO2 core-shell nanoparticles as enzyme carriers, and PET enzyme and LCC enzyme are carried inside the Fe4O3-SiO2 core-shell nanoparticles. The biodegradable enzymes catalyze the breakage of plastic polymer chains, decompose them into smaller molecules or monomers, and finally enable them to be further metabolized by microorganisms or naturally degraded. This degradation method has the advantages of high efficiency, environmental friendliness and specificity, and is an important way to solve the plastic pollution problem. Moreover, the magnetic enzyme degradation particles can be adsorbed by magnetic materials, which enables them to be recycled quickly and accurately and then reused. The magnetic enzyme degradation particles are located in the magnetic adsorption groove 6. An electromagnet is also arranged in the magnetic adsorption groove 6. When the electromagnet is energized to generate magnetism, the magnetic enzyme degradation particles are adsorbed into the magnetic adsorption groove 6. On the contrary, when the electromagnet is powered off, the magnetic enzyme degradation particles fall off from the magnetic adsorption groove 6. Further, a blocking piece 8 is arranged to protect and block the magnetic enzyme degradation particles. When the blocking piece 8 is moved out of the storage groove 7 and located above the magnetic adsorption groove 6, the magnetic enzyme degradation particles are restricted inside the storage groove 7. The device for supplying power to the electromagnet is arranged outside the box body 1. The electromagnet is powered on and off by supplying power to the electric wire buried inside the shaft rod 10 on one side of the magnetization particle carrying cylinder 5. In addition, stirring blades 17 are installed on the shaft rods 10 on both sides of the magnetization particle carrying cylinder 5. The setting of the stirring blades 17 can make the plastic particles and the solution mix more evenly. A pump liquid screw 11 is also fixedly installed on the shaft rod 10 on one side of the magnetization particle carrying cylinder 5. The pump liquid screw 11 rotates synchronously with the magnetization particle carrying cylinder 5. The pump liquid screw 11 is inserted into the liquid supply sleeve 12. Filter holes 13 arranged in an annular array are opened on the liquid supply sleeve 12. During the rotation of the pump liquid screw 11, the solution is continuously pushed to one side of the liquid supply sleeve 12 and finally released from the liquid spraying plate 15 through the liquid supply pipe 14. The advantage of this setting is that the solution in the enzyme degradation inner cavity 4 continuously flushes the surface of the grinding roller 3 to keep its surface rough, so as to perform the grinding and refining operation more efficiently. This solution serves as a cleaning device for the grinding roller 3 during the crushing process and as a degradation solvent during the biodegradation process, thus ensuring the normal progress of the physical crushing and biodegradation processes. After the biodegradation is completed, the electromagnet is energized again, and combined with the rotation of the magnetization particle carrying cylinder 5, the magnetic enzyme degradation particles are recycled by the magnetism of the electromagnet and enter the magnetic adsorption groove 6. After the recycling and adsorption are completed,Close the blocking piece 8 to confine the magnetic enzyme-degrading particles inside the storage tank 7.

[0018] Example 2: The shaft rod 10 on the side of the magnetization particle-carrying cylinder 5 away from the pump liquid screw 11 is fixedly connected to the drive shaft of the rotary motor 16 fixedly installed on the box body 1, and the magnetization particle-carrying cylinder 5 is driven to rotate by the rotation of the rotary motor 16.

[0019] On the roller shafts of a pair of crushing rollers 2 or grinding rollers 3, mutually meshing tooth discs 20 are fixedly installed. On the roller shafts on one side of the crushing rollers 2 and the grinding rollers 3, sprockets 21 are fixedly installed. The upper and lower sprockets 21 are connected by a chain 22, and the sprocket 21 is also connected to the driving sprocket 23 installed on the drive shaft of the crushing motor. The crushing rollers 2 and the grinding rollers 3 are driven to rotate synchronously by the rotation of the crushing motor. The crushing motor is fixedly installed outside the box body 1.

[0020] A through hole for inserting the shaft rod on one side of the magnetization particle-carrying cylinder 5 is provided at the center of the adjusting turntable 9. An adjusting motor is also fixedly installed on the side of the magnetization particle-carrying cylinder 5 close to the adjusting turntable 9. An adjusting gear 24 is fixedly installed on the drive shaft of the adjusting motor. The adjusting gear 24 meshes with the teeth provided on the adjusting turntable 9, and the adjusting turntable 9 is driven to rotate by a preset angle by the rotation of the adjusting motor 24.

[0021] In this embodiment, the drive mechanisms of the magnetization particle-carrying cylinder 5, the crushing rollers 2, the grinding rollers 3, and the adjusting turntable 9 are further disclosed. Among them, the drive devices of the magnetization particle-carrying cylinder 5, the crushing rollers 2, and the grinding rollers 3 are widely used in the prior art and will not be elaborated here. The adjusting gear 24 is fixedly installed on the drive shaft of the adjusting motor. The adjusting gear 24 is perpendicular to the inner side surface of the adjusting turntable 9 and abuts against the teeth provided on the inner side surface of the adjusting turntable 9. When the adjusting gear 24 rotates, it drives the adjusting turntable 9 to rotate, thereby playing a role in adjusting the position of the blocking piece 8.

[0022] Example 3: Bearing sleeve rods 18 are also installed on the shaft rods 10 on both sides of the magnetization particle-carrying cylinder 5. One end of the bearing sleeve rod 18 away from the magnetization particle-carrying cylinder 5 is fixedly installed on the connecting cross frame 19. Both ends of the connecting cross frame 19 are fixedly installed on the inner wall of the box body 1 above the enzyme degradation inner cavity 4.

[0023] In this embodiment, the magnetization particle-carrying cylinder 5 is supported by the bearing sleeve rods 18 so that it can stably perform a fixed-axis rotation motion.

[0024] Example 4: A blanking hole is also provided at the bottom of the box body 1. A shut-off ball valve 26 is rotatably installed on the fixed axis in the blanking hole. The shut-off ball valve 26 is fixedly connected to the drive shaft of the shut-off motor 25.

[0025] In this embodiment, a blanking hole is also formed at the bottom of the box body 1, and the solution after biodegradation is released through the blanking hole. A on-off ball valve 26 is rotatably installed on a fixed axis in the blanking hole, and the on-off of the blanking hole is controlled by the on-off ball valve 26. The on-off ball valve 26 is fixedly connected to the drive shaft of the on-off motor 25, and the rotation of the on-off ball valve 26 is controlled by the on-off motor 25.

[0026] It should be noted that the various motors and electrical components involved in the above content are all powered by an external power supply and are manually controlled through the corresponding switches provided on the box body 1.

[0027] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic waste recycling and crushing device, comprising a box body, a pair of crushing rollers and grinding rollers are arranged above the box body, and the pair of grinding rollers are arranged below the crushing rollers, and it is characterized in that: An enzyme degradation inner cavity is arranged in the box body below the grinding roller. A magnetization particle bearing cylinder is rotatably installed on a fixed axis in the enzyme degradation inner cavity. Magnet adsorption grooves are annularly and arrayedly formed on the outer edge of the magnetization particle bearing cylinder. Magnetic enzyme degradation particles are placed in the magnet adsorption grooves. Electromagnets for adsorbing the magnetic enzyme degradation particles are arranged in the magnet adsorption grooves. Receiving grooves are correspondingly formed on one side of the magnetization particle bearing cylinder where the magnet adsorption grooves are located. Blocking sheets are movably installed in the receiving grooves. A plurality of the blocking sheets are fixedly installed on an adjusting turntable. By rotating the adjusting turntable around its own axis by a preset angle, the plurality of blocking sheets are driven to move synchronously. When the blocking sheets move out of the receiving grooves and are located above the magnet adsorption grooves, the magnetic enzyme degradation particles are restricted inside the receiving grooves. A pump liquid screw rod is also fixedly installed on the shaft rod on one side of the magnetization particle bearing cylinder. The pump liquid screw rod is movably inserted into a liquid supply sleeve. Filter holes are annularly and arrayedly formed on the liquid supply sleeve. The liquid supply sleeve is fixedly installed on one side of the enzyme degradation inner cavity. The liquid supply sleeve is communicated with a pair of liquid spraying plates arranged between the crushing roller and the grinding roller through a connected liquid supply pipe. The pair of liquid spraying plates are fixedly installed in the tangential direction above the grinding roller. The liquid pumped out by the liquid spraying plates is used to clean the surface of the grinding roller.

2. The plastic waste recycling and crushing equipment according to claim 1, wherein: The shaft rod on the side of the magnetization particle bearing cylinder away from the pump liquid screw rod is fixedly connected with the driving shaft of a rotating motor fixedly installed on the box body. The magnetization particle bearing cylinder is driven to rotate by the rotation of the rotating motor.

3. A plastic waste recycling and crushing device according to claim 1 or 2, characterized in that: Stirring blades are installed on the shaft rods on both sides of the magnetization particle bearing cylinder.

4. A plastic waste recycling and crushing device according to claim 3, characterized in that: Bearing sleeve rods are also installed on the shaft rods on both sides of the magnetization particle bearing cylinder. One end of the bearing sleeve rod away from the magnetization particle bearing cylinder is fixedly installed on a connecting cross frame. Both ends of the connecting cross frame are fixedly installed on the inner wall of the box body above the enzyme degradation inner cavity.

5. A plastic waste recycling and crushing device according to claim 4, characterized in that: Mutually meshing tooth discs are fixedly installed on the roller shafts of a pair of the crushing rollers or the grinding rollers. Sprockets are fixedly installed on the roller shafts on one side of the crushing roller and the grinding roller. The upper and lower sprockets are connected by a chain. The sprockets are also connected with a driving sprocket installed on the driving shaft of a crushing motor. The crushing roller and the grinding roller are driven to rotate synchronously by the rotation of the crushing motor. The crushing motor is fixedly installed on the outer side of the box body.

6. The plastic waste recycling and crushing equipment according to claim 5, characterized in that: A through hole for inserting the shaft rod on one side of the magnetization particle bearing cylinder is formed at the center of the adjusting turntable. An adjusting motor is also fixedly installed on the side of the magnetization particle bearing cylinder close to the adjusting turntable. An adjusting gear is fixedly installed on the driving shaft of the adjusting motor. The adjusting gear meshes with the teeth formed on the adjusting turntable. The adjusting turntable is driven to rotate by a preset angle by the rotation of the adjusting motor.

7. A plastic waste recycling and crushing device according to claim 6, characterized in that: A blanking hole is also formed at the bottom of the box body. An opening and closing ball valve is rotatably installed on a fixed axis in the blanking hole. The opening and closing ball valve is fixedly connected with the driving shaft of a blanking motor.

8. A plastic waste recycling and crushing device according to claim 7, characterized in that: The magnetic enzyme degradation particles use Fe4O3-SiO2 core-shell nanoparticles as enzyme carriers, and PET enzyme and LCC enzyme are carried in the Fe4O3-SiO2 core-shell nanoparticles.

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