Plastic cleaning and separating device
By using a combination of hard-pressed plastic crushing material and air flotation, along with a screw conveyor and air flotation device, the problem of unsatisfactory cleaning effect in existing plastic washing and separation devices has been solved, achieving a highly efficient separation of floating and sinking materials.
Patent Information
- Application Number
- CN202423273573.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing plastic washing and separation devices have the problem of unsatisfactory cleaning effect, especially when dealing with large quantities of crushed plastic materials, where sludge and other impurities are difficult to separate from the plastic.
The method of hard-pressing and air flotation of crushed plastic material is adopted. The material is pushed into the washing tank by inclined screw conveyor and cleaned by air flotation device. Combined with impeller device to collect floating material, the material is effectively separated into sinking and floating materials.
It improves the cleaning effect of plastics, ensures simple structure, convenient operation and good operational stability, and effectively separates sludge from plastic fragments.
Smart Images
Figure CN223604754U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to waste plastics recycling technical field especially, relates to a plastic cleaning and separating device. BACKGROUND
[0002] With the continuous increase of plastic product consumption, waste plastics are also increasing, and if these waste plastics are not properly treated, they will inevitably damage the environment and harm human health.
[0003] The current waste plastic treatment methods mainly include sanitary landfill, incineration treatment and waste plastic recycling. Waste plastic recycling is most common through mechanical and physical recycling, reprocessing and utilization through processes such as crushing and cleaning, which is suitable for most plastics and is the most common harmless treatment method at present.
[0004] The common plastic cleaning and separating device on the market includes a cleaning pool, and a stirring device is arranged in the cleaning pool. The crushed plastic crushing material is poured into the cleaning pool from above the cleaning pool, and the stirring device in the cleaning pool stirs and cleans. Since the plastic crushing material is floating material, it floats on the water surface, so even if there is a stirring device, some sludge and impurities will still adhere to the plastic crushing material and cannot be completely cleaned, especially when the amount of plastic crushing material in the cleaning pool is large, some sludge and impurities will be lifted by the plastic crushing material and cannot be separated from the plastic crushing material, and the cleaning effect of the plastic crushing material is very poor. UTILITY MODEL CONTENTS
[0005] The technical problem to be solved by the utility model is to provide a plastic cleaning and separating device which is simple in structure, easy to operate and good in cleaning effect.
[0006] In view of the poor cleaning effect of the plastic crushing material entering and stirring mode, the utility model adopts hard pressing of the plastic crushing material into + air flotation mode, and the plastic crushing material is punched into water. The plastic crushing material punched into water can be dispersed under the action of air flotation and cleaned under the action of air flotation during upward floating, so as to improve the separation effect of sludge and other sinking materials and plastic crushing material and other floating materials.
[0007] The technical scheme of the utility model is: the plastic cleaning and separating device comprises a cleaning pool, a floating material collecting area is arranged at the rear of the cleaning pool, a pulsator device group for pushing and cleaning the floating material from front to back and finally pushing the floating material into the floating material collecting area is arranged on the cleaning pool, a feeding port is arranged on the front side wall of the lower segment of the cleaning pool, a material conveying device for pressing the plastic crushing material into the cleaning pool is connected to the feeding port, and an air flotation device for flushing and cleaning the plastic crushing material is arranged on the cleaning pool.
[0008] The air floatation device comprises a gas dissolving tank, an air compressor and a water pump arranged outside the cleaning tank, a gas outlet of the air compressor is communicated with a gas inlet of the gas dissolving tank through a gas pipeline, a first valve is arranged on the gas pipeline, a water inlet of the water pump is communicated with a water outlet on the cleaning tank through a first pipeline, a second valve is arranged on the first pipeline, a water outlet of the water pump is communicated with a water inlet of the gas dissolving tank through a second pipeline, a third valve is arranged on the second pipeline, and a main pipeline is connected to a gas dissolving water outlet of the gas dissolving tank.
[0009] In order to monitor the pressure of the air input into the gas dissolving tank in real time, a first pressure gauge is arranged on the gas pipeline.
[0010] The material conveying device has various structures, and the material conveying device adopts a screw conveyor considering the properties of the plastic crushed material.
[0011] Further, the plastic cleaning and separating device, wherein the screw conveyor is arranged at the feeding port of the cleaning tank in an inclined manner, and the feeding port of the screw conveyor is higher than the discharging port of the screw conveyor.
[0012] Further, the plastic cleaning and separating device, wherein the screw rod in the screw conveyor is a variable pitch screw rod, and the pitch of the variable pitch screw rod gradually increases from the feeding port of the screw conveyor to the discharging port of the screw conveyor, so as to improve the uniformity and smoothness of discharging and prevent the phenomenon of material jamming.
[0013] The device adopts the hard pressing and air floatation mode, the plastic crushed material is punched into water, the plastic crushed material punched into water can be dispersed under the air floatation effect and can be cleaned under the air floatation effect in the process of upward floating, the device has the advantages of simple structure, convenient operation, good cleaning effect, good running stability and the like. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 is a structural schematic view of the plastic cleaning and separating device.
[0015] Figure 2 is Figure 1 is a local structural schematic view of the left view direction.
[0016] wherein:
[0017] 1, cleaning pool; 2, floating material collecting area; 3, impeller device group; 4, screw conveyor; 5, dissolved air tank; 6, air compressor; 7, water pump; 8, gas pipeline; 9, second pipeline; 10, main pipeline; 11, branch pipeline; 12, releaser; 13, hopper. DETAILED DESCRIPTION
[0018] The technical solutions of the present application will be described in further detail below with reference to the preferred embodiments and the accompanying drawings.
[0019] In the following, the example embodiments will be described more fully with reference to the accompanying drawings, in which, however, the example embodiments can be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, the purpose of the embodiments is to explain the principles of the present disclosure to a person skilled in the art fully and completely, and to enable the person skilled in the art to fully understand the scope of the present disclosure.
[0020] For the convenience of description, the embodiments are defined as "front" in the left-hand direction shown in Figure 1 "back" in the right-hand direction shown in Figure 1 all the direction words related to "front" and "back" in this document are defined accordingly.
[0021] As shown in Figure 1 and Figure 2 A plastic cleaning and separating device in the embodiments comprises a cleaning pool 1, a floating material collecting area 2 is arranged at the rear of the cleaning pool 1, and an impeller device group 3 is arranged on the cleaning pool 1 to move and clean the floating material such as plastic crushed material floating on the water surface from front to back, and finally to move the floating material into the floating material collecting area 2. The impeller device group 3 comprises a plurality of impellers supported on the cleaning pool 1 by respective bearing groups, the impellers are distributed at intervals from front to back, and each impeller is driven to rotate by a corresponding motor. A plurality of hoppers 13 are arranged at the bottom of the cleaning pool 1, and the sinking material in the plastic crushed material sinks into the hoppers 13 after cleaning.
[0022] A feeding port is arranged on the front side wall of the lower section of the cleaning pool 1, and a material conveying device is connected to the feeding port to press the plastic crushed material into the cleaning pool 1. The material conveying device in the embodiments is preferably a screw conveyor 4, which is arranged at the feeding port of the cleaning pool 1 in an inclined manner, and the feeding port of the screw conveyor 4 is higher than the discharge port of the screw conveyor 4. The inclined hard pressing and punching of the screw conveyor 4 can increase the floating distance of the plastic crushed material, thereby improving the separation effect of the sinking material and the floating material.
[0023] In addition, the screw in the screw conveyor 4 in the embodiment is a variable pitch screw, and the pitch of the variable pitch screw gradually increases from the feeding port of the screw conveyor 4 to the discharging port of the screw conveyor 4. This arrangement facilitates uniform discharging and smooth discharging, and avoids the problem of material jamming, thereby improving the stability of the screw conveyor 4.
[0024] The embodiment is provided with a gas floatation device on the cleaning tank 1, which washes and flushes the plastic broken material hard-pressed into the cleaning tank 1 by the screw conveyor 4. Figure 1 and Figure 2 As shown in the drawings, the gas floatation device in the embodiment comprises a gas dissolving tank 5, an air compressor 6 and a water pump 7 arranged outside the cleaning tank 1. The gas outlet of the air compressor 6 is communicated with the gas inlet of the gas dissolving tank 5 through a gas pipeline 8, and a first valve and a first pressure gauge are arranged on the gas pipeline 8. The water inlet of the water pump 7 is communicated with the water outlet on the cleaning tank 1 through a first pipeline, and a second valve is arranged on the first pipeline. The water outlet of the water pump 7 is communicated with the water inlet of the gas dissolving tank 5 through a second pipeline 9, and a third valve and a second pressure gauge are arranged on the second pipeline 9. The gas dissolving water outlet of the gas dissolving tank 5 is connected with a main pipeline 10. A plurality of branch pipelines 11 are arranged in the cleaning tank 1, and a releaser 12 is arranged at the bottom end outlet of each branch pipeline 11, and the top end inlet of each branch pipeline 11 is communicated with the main pipeline 10.
[0025] In operation, the water pump 7 continuously draws water from the cleaning tank 1 into the gas dissolving tank 5, the air compressor 6 sends compressed air with a certain pressure into the gas dissolving tank 5, and after gas-water mixing in the gas dissolving tank 5, the mixed gas-water is flushed into the cleaning tank 1 through the releasers 12 at a certain pressure. Meanwhile, the screw conveyor 4 continuously presses the plastic broken material into the cleaning tank 1 in a hard-pressing and tilting manner. The plastic broken material in the cleaning tank 1 is scattered by the gas-water flushed into the cleaning tank 1 at a certain pressure, and is washed under the action of gas floatation, so as to effectively separate the sinking material such as impurities from the floating material such as plastic broken material. The sinking material sinks into the hopper 13, and the floating material floats on the water surface and is scraped into the floating material collection area 2 by the wave device group 3.
[0026] The plastic cleaning and separating device adopts the hard-pressing and gas floatation method, and the plastic broken material is pressed into water, and the plastic broken material in the water is scattered and washed under the action of gas floatation in the process of floating upward, so that the device has the advantages of simple structure, convenient operation, good washing effect and good running stability.
[0027] The above description is only a preferred embodiment of the present application, and does not limit the present application in any other form. Any modification or equivalent change made according to the technical essence of the present application still falls within the scope of protection of the present application.
Claims
1. A plastic cleaning and separating apparatus comprising: The application discloses a cleaning pool characterized in that a floating material collecting area is arranged at the rear of the cleaning pool, a wave wheel device group for pushing the floating material from front to back for cleaning and finally pushing the floating material into the floating material collecting area is arranged on the cleaning pool, a material inlet is arranged on the front side wall of the lower section of the cleaning pool, a material conveying device for pressing the plastic crushing material into the cleaning pool is connected to the material inlet, and an air flotation device for washing and cleaning the plastic crushing material is arranged on the cleaning pool.
2. A plastic cleaning and separating device according to claim 1, characterized in that The air flotation device comprises a gas dissolving tank, an air compressor and a water pump which are arranged outside the cleaning pool; the gas outlet of the air compressor is communicated with the gas inlet of the gas dissolving tank through a gas pipeline, and a first valve is arranged on the gas pipeline; the water inlet of the water pump is communicated with the water outlet on the cleaning pool through a first pipeline, and a second valve is arranged on the first pipeline; the water outlet of the water pump is communicated with the water inlet of the gas dissolving tank through a second pipeline, and a third valve is arranged on the second pipeline; the gas dissolving water outlet of the gas dissolving tank is connected with a main pipeline; a plurality of branch pipelines are arranged in the cleaning pool, a releaser is arranged at the bottom end outlet of each branch pipeline, and the top end inlet of each branch pipeline is communicated with the main pipeline.
3. A plastic cleaning and separating device according to claim 2, characterized in that A first pressure gauge is arranged on the gas pipeline, and a second pressure gauge is arranged on the second pipeline.
4. The plastic cleaning and separating device according to claim 1, characterized in that: The material conveying device is a screw conveyor.
5. A plastic cleaning and separating device according to claim 4, characterized in that The screw conveyor is arranged at the material inlet of the cleaning pool in an inclined mode, and the material inlet of the screw conveyor is higher than the material outlet of the screw conveyor.
6. A plastic cleaning and separating device according to claim 4 or 5, characterized in that The screw in the screw conveyor is a variable pitch screw, and the pitch of the variable pitch screw gradually increases from the material inlet of the screw conveyor to the material outlet of the screw conveyor.