Waste plastic washing and dehydration equipment

Abstract

This utility model discloses a waste plastic washing and dewatering device, specifically relating to the field of plastic washing and dewatering technology. It includes a washing tank with a feeding frame at its upper end. A vibrating screen is movably connected to the upper end of the washing tank, with a screen plate fixedly connected inside the vibrating screen. An inclined plate is fixedly connected to the bottom of the screen plate, and a vibrating motor is fixedly connected to the top of the vibrating screen. Two fixing blocks are fixedly connected to both sides of the vibrating screen, with a spring fixedly connected to the bottom of each fixing block. A mounting plate is fixedly connected to the rear end of the washing tank. This utility model uses the screen plate on the vibrating screen to screen out fine fragments from the plastic scraps. Other plastic particles enter the washing chamber through the opening on the front side of the vibrating screen. When screening is not required, the bolts can be removed to remove the vibrating screen, pre-screening out fine fragments from the plastic scraps, improving rinsing efficiency and reducing wastewater turbidity. This prevents fine particles from clogging the machine during the dewatering stage, thus improving dewatering efficiency.

Description

Technical Field

[0001] This utility model relates to the field of plastic cleaning and dehydration technology, and more specifically, to a waste plastic cleaning and dehydration device. Background Technology

[0002] Waste plastic washing and dehydration is a key recycling process that uses mechanical and physical methods to remove surface stains and moisture. After being crushed, the plastic fragments are cleaned by a friction washer or rinsing tank to remove impurities such as mud and oil stains. They then enter a high-speed cyclone dehydrator or centrifugal dehydrator to remove surface moisture using centrifugal force. Some production lines combine hot air drying or spiral extrusion to further reduce the moisture content, ultimately obtaining clean and dry plastic fragments that provide qualified recycled raw materials for subsequent melting and granulation. This process emphasizes quality separation and water recycling to improve recycling efficiency and reduce energy consumption.

[0003] During the washing and dewatering process of waste plastics, fine debris is easily suspended in the water, reducing rinsing efficiency and increasing wastewater turbidity, leading to repeated adhesion of impurities. In the dewatering stage, fine particles can easily clog the centrifuge screen or hydrocyclone drain hole, reducing dewatering efficiency and accelerating equipment wear. This not only affects the cleanliness and moisture content of recycled plastics, but also increases the cost of water recycling and the difficulty of subsequent sorting.

[0004] In summary, to improve dewatering efficiency and reduce equipment wear, it is necessary to address the following issues during the washing and dewatering process of waste plastics: fine debris tends to remain suspended in the water during washing, reducing rinsing efficiency and increasing wastewater turbidity, leading to repeated adhesion of impurities; and fine particles easily clog the centrifuge screen or hydrocyclone drain hole during the dewatering stage. These issues need to be addressed to improve dewatering efficiency and reduce equipment wear. Utility Model Content

[0005] The waste plastic washing and dewatering device provided by this utility model aims to solve the following problems: during the washing and dewatering process of waste plastics, fine debris is easily suspended in the water, which reduces rinsing efficiency and increases the turbidity of the wastewater. During the dewatering stage, fine particles are easy to clog the centrifuge screen or the drain hole of the hydrocyclone, which reduces the dewatering efficiency and accelerates equipment wear, affecting the cleanliness and moisture content of the recycled plastics.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a waste plastic washing and dewatering device, including a washing tank, a feeding frame at the upper end of the washing tank, a vibrating screen movably connected to the upper end of the washing tank, a screen plate fixedly connected inside the vibrating screen, an inclined plate fixedly connected to the bottom of the screen plate, a vibrating motor fixedly connected to the top of the vibrating screen, two fixing blocks 1 fixedly connected to the left and right sides of the vibrating screen, a spring 1 fixedly connected to the bottom of the fixing block 1, a fixing block 2 fixedly connected to the bottom of the spring 1, the fixing block 2 fixedly connected to the vibrating screen, an mounting plate fixedly connected to the rear end of the washing tank, bolts threadedly connected to the fixing block 2, the bolts threadedly connected to the mounting plate, two fixing blocks 3 fixedly connected to the left and right sides of the vibrating screen, a spring 2 fixedly connected to the bottom of the fixing block 3, a fixing block 4 fixedly connected to the bottom of the spring 2, the fixing block 4 fixedly connected to the vibrating screen, mounting blocks fixedly connected to the left and right sides of the washing tank, bolts threadedly connected to the fixing block 3, the bolts threadedly connected to the mounting blocks.

[0007] In a preferred embodiment, a motor is fixedly connected to the top of the cleaning tank, and a stirring rod is fixedly connected to the output end of the motor.

[0008] In a preferred embodiment, a water inlet pipe is provided at the front end of the cleaning tank, multiple stirring plates are fixedly connected to the outer surface of the stirring rod, and a connecting pipe is fixedly connected to the bottom of the cleaning tank.

[0009] In a preferred embodiment, a valve is provided inside the connecting pipe, and a filter screen barrel is fixedly connected to the bottom of the connecting pipe.

[0010] In a preferred embodiment, a support frame is provided at the bottom of the filter screen barrel, and a motor is fixedly connected to the upper end of the support frame.

[0011] In a preferred embodiment, a rotating rod is fixedly connected to the output end of motor two, and motor two is used to drive the rotating rod to rotate. A spiral plate is provided on the outer surface of the rotating rod.

[0012] In a preferred embodiment, a support plate is provided at the upper end of the support frame, and the support plate is fixedly connected to the filter screen barrel.

[0013] In a preferred embodiment, a discharge port is provided at the bottom front of the filter screen barrel, and a water outlet is provided at the bottom of the support frame.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention uses a vibrating motor to power the vibrating screen for screening. The screen plate on the vibrating screen filters out the fine particles from the plastic fragments. The filtered fine particles fall onto an inclined plate and then flow out of the vibrating screen through the inclined plate. Other plastic particles enter the washing cabinet through the opening on the front side of the vibrating screen. Bolts fix the second fixing block to the mounting plate, and the fourth fixing block is fixed to the mounting block. When screening is not needed, the vibrating screen can be easily removed to screen out the fine particles from the plastic fragments in advance, improve rinsing efficiency, reduce wastewater turbidity, prevent fine particles from clogging the machine during the dewatering stage, and improve dewatering efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a schematic diagram of the vibrating screen structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the cleaning box structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the feed frame structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the spiral plate structure of this utility model.

[0021] The attached diagram is labeled as follows: 1. Cleaning tank; 2. Feed frame; 3. Vibrating screen; 4. Screen plate; 5. Inclined plate; 6. Vibrating motor; 701. Fixing block one; 801. Spring one; 901. Fixing block two; 101. Mounting plate; 11. Bolt; 702. Fixing block three; 802. Spring two; 902. Fixing block four; 102. Mounting block; 12. Motor one; 13. Water inlet pipe; 14. Stirring rod; 15. Connecting pipe; 16. Valve; 17. Filter screen barrel; 18. Motor two; 19. Rotating rod; 20. Spiral plate; 21. Support frame; 22. Support plate; 23. Discharge port; 24. Water outlet. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] Refer to the instruction manual appendix Figures 1 to 5A waste plastic washing and dewatering device includes a washing tank 1, a feeding frame 2 at the upper end of the washing tank 1, a vibrating screen 3 movably connected to the upper end of the washing tank 1, a screen plate 4 fixedly connected inside the vibrating screen 3, an inclined plate 5 fixedly connected to the bottom of the screen plate 4, a vibrating motor 6 fixedly connected to the top of the vibrating screen 3, and two fixing blocks 701 fixedly connected to the left and right sides of the vibrating screen 3. A spring 801 is fixedly connected to the bottom of fixing block 701, and a fixing block 901 is fixedly connected to the bottom of spring 801. The fixing blocks 901 are fixedly connected to the vibrating screen 3. The rear of the washing tank 1... The end is fixedly connected to the mounting plate 101. The internal thread of the fixing block 2 901 is connected to the bolt 11, which is threaded to the mounting plate 101. The left and right sides of the vibrating screen 3 are fixedly connected to two fixing blocks 3 702. The bottom of the fixing block 3 702 is fixedly connected to the spring 2 802. The bottom of the spring 2 802 is fixedly connected to the fixing block 4 902, which is fixedly connected to the vibrating screen 3. The left and right sides of the washing box 1 are fixedly connected to the mounting block 102. The internal thread of the fixing block 3 702 is connected to the bolt 11, which is threaded to the mounting block 102.

[0024] It should be noted that the vibrating motor 6 provides power for the vibrating screen 3 to operate. The screen plate 4 on the vibrating screen 3 screens out the fine particles in the plastic fragments. The screened fine particles fall onto the inclined plate 5 and then flow out of the vibrating screen 3 through the inclined plate 5. Other plastic particles enter the cleaning cabinet through the opening on the front side of the vibrating screen 3. Bolt 11 fixes the fixing block 2 901 to the mounting plate 101 and fixes the fixing block 4 902 to the mounting block 102, so that the vibrating screen 3 can be easily removed when screening is not required.

[0025] Refer to the instruction manual appendix Figure 2 A motor 12 is fixedly connected to the top of the cleaning tank 1, and a stirring rod 14 is fixedly connected to the output end of the motor 12. The motor 12 is used to drive the stirring rod 14 to rotate.

[0026] It should be noted that motor 12 drives the stirring rod 14 to rotate, stirring and mixing the plastic fragments evenly.

[0027] Refer to the instruction manual appendix Figure 4 The front end of the cleaning tank 1 is provided with a water inlet pipe 13, and multiple stirring plates are fixedly connected to the outer surface of the stirring rod 14. The bottom of the cleaning tank 1 is fixedly connected with a connecting pipe 15.

[0028] It should be noted that the water for cleaning the plastic fragments enters the cleaning tank 1 through the water inlet pipe 13. The stirring plate on the stirring rod 14 stirs the water and plastic fragments, cleaning the plastic fragments while stirring them evenly.

[0029] Refer to the instruction manual appendix Figure 2A valve 16 is installed inside the connecting pipe 15, and a filter screen barrel 17 is fixedly connected to the bottom of the connecting pipe 15.

[0030] It should be noted that after the water and plastic fragments are stirred and washed, valve 16 is opened to allow the sewage and plastic fragments to flow into the filter screen bucket 17. Valve 16 controls the opening and closing of the connecting pipe 15.

[0031] Refer to the instruction manual appendix Figure 2 The bottom of the filter screen barrel 17 is provided with a support frame 21, and the upper end of the support frame 21 is fixedly connected to a motor 18.

[0032] It should be noted that the filter screen barrel 17 is a cylindrical shape that is narrower at the front and wider at the back. The filter screen barrel 17 is made of filter screen. The support frame 21 provides support for the motor 18 and the filter screen barrel 17, and can also collect the squeezed wastewater.

[0033] Refer to the instruction manual appendix Figure 3 The output end of motor 18 is fixedly connected to a rotating rod 19. Motor 18 is used to drive the rotating rod 19 to rotate. The outer surface of the rotating rod 19 is provided with a spiral plate 20.

[0034] It should be noted that motor 18 drives the rotating rod 19 to rotate, and the spiral plate 20 on the rotating rod 19 drives the plastic fragments forward, while squeezing out the water from the plastic fragments.

[0035] Refer to the instruction manual appendix Figure 2 A support plate 22 is provided at the upper end of the support frame 21, and the support plate 22 is fixedly connected to the filter screen barrel 17.

[0036] It should be noted that the support plate 22 provides support for the filter screen barrel 17, and the support plate 22 is arc-shaped and tightly connected to the filter screen barrel 17.

[0037] Refer to the instruction manual appendix Figure 2 The filter screen barrel 17 has a discharge port 23 at the bottom front position, and the support frame 21 has a water outlet 24 at the bottom.

[0038] It should be noted that the plastic fragments that have been squeezed out of water flow out from the discharge port 23, while the wastewater accumulated in the support frame 21 flows out from the water outlet 24.

[0039] Working principle: The vibrating motor 6 provides power to the vibrating screen 3. The screen plate 4 on the vibrating screen 3 screens out the fine particles from the plastic fragments. The screened fine particles fall onto the inclined plate 5 and then flow out of the vibrating screen 3 through the inclined plate 5. Other plastic particles enter the cleaning cabinet through the opening on the front side of the vibrating screen 3. Bolt 11 fixes the fixing block 2 901 to the mounting plate 101 and the fixing block 4 902 to the mounting block 102, making it easy to remove the vibrating screen 3 when screening is not needed. Then, the motor 12 drives the stirring rod 14 to rotate. At the same time, the water for washing the plastic fragments enters the cleaning tank 1 from the water inlet pipe 13. The stirring rod 14 agitates the water. The plate agitates the water and plastic fragments, washing them while stirring. After the water and plastic fragments are stirred and washed, valve 16 is opened to allow the wastewater and plastic fragments to flow into the filter screen barrel 17. The filter screen barrel 17 is a cylindrical shape that is narrow at the front and wide at the back. The filter screen barrel 17 is made of filter screen. The support frame 21 provides support for the motor 18 and the filter screen barrel 17, and can also collect the squeezed wastewater. The motor 18 drives the rotating rod 19 to rotate, and the spiral plate 20 on the rotating rod 19 moves the plastic fragments forward, squeezing out the water from the plastic fragments. The plastic fragments with squeezed water flow out from the discharge port 23, while the wastewater accumulated in the support frame 21 flows out from the water outlet 24.

[0040] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A waste plastic washing and dewatering device, characterized in that: The system includes a cleaning tank (1), a feeding frame (2) at the top of the cleaning tank (1), a vibrating screen (3) movably connected to the top of the cleaning tank (1), a screen plate (4) fixedly connected inside the vibrating screen (3), an inclined plate (5) fixedly connected to the bottom of the screen plate (4), a vibrating motor (6) fixedly connected to the top of the vibrating screen (3), two fixing blocks (701) fixedly connected to the left and right sides of the vibrating screen (3), a spring (801) fixedly connected to the bottom of the fixing block (701), a fixing block (901) fixedly connected to the bottom of the spring (801), and the fixing block (901) fixedly connected to the vibrating screen (3). The rear end of the cleaning tank (1) is fixedly connected to... There is an installation plate (101), and the internal thread of the fixing block two (901) is connected to the bolt (11). The bolt (11) is threaded to the installation plate (101). The vibrating screen (3) is fixedly connected to two fixing blocks three (703) on both the left and right sides. The bottom of the fixing block three (703) is fixedly connected to the spring two (802). The bottom of the spring two (802) is fixedly connected to the fixing block four (902). The fixing block four (902) is fixedly connected to the vibrating screen (3). The cleaning box (1) is fixedly connected to the left and right sides with the installation block (102). The internal thread of the fixing block three (703) is connected to the bolt (11). The bolt (11) is threaded to the installation block (102).

2. The waste plastic washing and dewatering device according to claim 1, characterized in that: A motor (12) is fixedly connected to the top of the cleaning tank (1), and a stirring rod (14) is fixedly connected to the output end of the motor (12). The motor (12) is used to drive the stirring rod (14) to rotate.

3. The waste plastic washing and dewatering device according to claim 2, characterized in that: The front end of the cleaning tank (1) is provided with a water inlet pipe (13), and multiple stirring plates are fixedly connected to the outer surface of the stirring rod (14). The bottom of the cleaning tank (1) is fixedly connected with a connecting pipe (15).

4. The waste plastic washing and dewatering device according to claim 3, characterized in that: A valve (16) is installed inside the connecting pipe (15), and a filter screen barrel (17) is fixedly connected to the bottom of the connecting pipe (15).

5. The waste plastic washing and dewatering device according to claim 4, characterized in that: A support frame (21) is provided at the bottom of the filter screen barrel (17), and a motor (18) is fixedly connected to the upper end of the support frame (21).

6. The waste plastic washing and dewatering device according to claim 5, characterized in that: The output end of motor 2 (18) is fixedly connected to a rotating rod (19). Motor 2 (18) is used to drive the rotating rod (19) to rotate. The outer surface of the rotating rod (19) is provided with a spiral plate (20).

7. The waste plastic washing and dewatering device according to claim 5, characterized in that: A support plate (22) is provided at the upper end of the support frame (21), and the support plate (22) is fixedly connected to the filter screen barrel (17).

8. The waste plastic washing and dewatering device according to claim 5, characterized in that: The filter screen barrel (17) has a discharge port (23) at the bottom front position, and the support frame (21) has a water outlet (24) at the bottom.

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