Waste plastic film residue cleaning and impurity removing device

Abstract

The invention discloses a waste plastic film residue cleaning and impurity removing device which comprises a rack, a cleaning tank, a plastic film residue conveying mechanism, a smashing device, a roller screen device, a plastic film residue output device and an impurity discharging device. The residual film conveying mechanism is mounted in the rack and the cleaning tank; the smashing device, the roller screen device and the residual film output device are sequentially arranged from left to right along the cleaning tank, the smashing device is located above the residual film conveying mechanism, the roller screen device is arranged in the cleaning tank and is in transmission connection with the smashing device, and the residual film conveying mechanism penetrates through the roller screen device; the residual film output device is mounted on the rack and is in transmission connection with the residual film conveying mechanism; the impurity discharging device is installed on the side, close to the smashing device, of the outer side wall of the cleaning tank and communicates with the interior of the cleaning tank. Waste residual films are crushed and then fall into the cleaning tank to be subjected to repeated cleaning and film impurity separation, finally, the residual films and impurities are discharged respectively, the cleaning rate and cleaning efficiency of the residual films are improved, and the film impurity separation efficiency and effect are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural solid waste resource utilization, in particular to a waste residual film cleaning and impurity removing device. BACKGROUND

[0002] The recovered waste mulch film (residual film) is a valuable renewable plastic resource. Through cleaning, granulation and other processes, it can be regenerated into plastic particles for producing drip irrigation tape, plastic buckets, plastic bags and other low requirement plastic products, realizing waste-to-resource and circular economy, and making residual film recycling and reuse the main way to reduce white pollution and realize green agriculture. In the face of severe environmental pressure and resource waste problems, recycling and resource utilization of waste mulch film has become an inevitable choice for sustainable development of agriculture and construction of an ecological friendly agriculture.

[0003] However, the residual film recovered from farmland is usually mixed with a large amount of soil, sand, crop roots, straw fragments, water and other impurities. The presence of these impurities hinders the resource utilization of residual film. Currently, residual film cleaning methods such as manual rinsing and simple mechanical flushing are commonly used, but they have the problems of incomplete cleaning, high water consumption, high energy consumption, poor adaptability, complex structure, difficult maintenance and the like. There is a lack of efficient, energy-saving, reliable and continuous operation of special residual film cleaning and impurity removing equipment.

[0004] In addition, although there are some solid waste cleaning equipment or general plastic cleaning lines in the prior art, they are not designed for the characteristics of light and thin, easy to entangle, complex impurities and strong adhesion of soil of farmland residual film, resulting in incomplete removal of small soil particles, embedded sand and entangled roots, unreasonable cleaning process design, lack of water recycling system, huge water consumption, reliance on manual assistance or poor connection, and difficulty in meeting the needs of large-scale processing.

[0005] Therefore, it is an urgent problem for those skilled in the art to provide an efficient and high-quality waste residual film cleaning and impurity removing device. SUMMARY

[0006] Therefore, the present application provides a waste residual film cleaning and impurity removing device to at least solve one of the problems mentioned in the background.

[0007] In order to achieve the above purpose, the present application adopts the following technical solutions: The utility model provides a kind of waste and old residual film cleaning and impurity removing device, including rack, cleaning tank, residual film conveying mechanism, crushing device, rolling screen device, residual film output device and impurity removing device, the cleaning tank is arranged on the rack;The residual film conveying mechanism is installed in the rack and the cleaning tank interior;The crushing device, the rolling screen device and the residual film output device are sequentially arranged from left to right along the cleaning tank, and the crushing device is located above the residual film conveying mechanism, the rolling screen device is arranged in the cleaning tank interior and is transmissionally connected with the crushing device, the residual film conveying mechanism penetrates the rolling screen device, the residual film output device is installed on the rack and is transmissionally connected with the residual film conveying mechanism;The impurity removing device is installed on the cleaning tank outer side wall near the side of the crushing device, and the impurity removing device is communicated with the cleaning tank interior.

[0008] By adopting the above technical scheme, the present application has the following beneficial effects: After being broken, the waste and old residual film falls into the cleaning tank for multiple cleaning and film-impurity separation, and finally the residual film and impurities are discharged respectively, so that the cleaning rate and cleaning efficiency of the residual film are improved, and the film-impurity separation efficiency and effect are improved.

[0009] Further, it further includes a water circulation mechanism, the water circulation mechanism includes a water pump and a water pipe, the water pump is installed on one side of the cleaning tank, one end of the water pipe is connected with the water pump, and the other end of the water pipe extends to the other side of the cleaning tank.

[0010] Further, it further includes a first spraying mechanism and a second spraying mechanism, the first spraying mechanism, the rolling screen device and the second spraying mechanism are sequentially arranged from left to right along the cleaning tank, and the first spraying mechanism and the second spraying mechanism are arranged above the residual film conveying mechanism.

[0011] The above further technical scheme has the beneficial effects that the purpose of maximizing the cleaning of residual film and the separation of impurities is achieved, and the impurity separation rate and the residual film cleanliness rate are greatly improved.

[0012] Further, it further includes an impurity blocking wheel, the impurity blocking wheel is rotatably installed in the cleaning tank through its shaft end, and the impurity blocking wheel is located between the crushing device and the first spraying mechanism, and the impurity blocking wheel is located above the residual film conveying mechanism.

[0013] The above further technical scheme has the beneficial effects that the residual film and impurities floating on the water surface can be pressed into the water, and the impurities floating back with the water flow can also be blocked, so that the impurities enter the impurity removing groove.

[0014] Further, the residual film conveying mechanism comprises a driving mechanism, a chain transmission mechanism and a plurality of hooks, the driving mechanism is installed on the support of the rack near the residual film output device; the chain transmission mechanism is installed inside the rack and the cleaning tank, and the head end of the chain transmission mechanism is located below the crushing device, and the tail end of the chain transmission mechanism is located above the residual film output device to surround the residual film output device; a plurality of hooks are fixed on the side of the transmission chain of the chain transmission mechanism at equal intervals; the impurity blocking wheel corresponds to the position of the hook.

[0015] The beneficial effects produced by the above further technical scheme are that by arranging hooks on the side of the transmission chain, the residual film can be moved with the transmission chain, so that the residual film is conveyed to different areas for cleaning, separation and output operation, thereby improving the residual film conveying efficiency, ensuring the conveying effect and changing the conveying space with a simple structure design.

[0016] Further, the driving mechanism comprises a first motor, a first sprocket, a second sprocket and a driving chain, the chain transmission mechanism comprises a first rotating shaft, a second rotating shaft, a third rotating shaft, a fourth rotating shaft, a fifth rotating shaft, a sixth rotating shaft, a tensioning rotating shaft, a pressing rotating shaft, a plurality of third sprockets, a pressing wheel and the transmission chain, the first motor is installed on the support; the first rotating shaft and the second rotating shaft are respectively installed on the top wall of the support through bearing seats; the third rotating shaft is installed on the support through a bearing seat and located between the first rotating shaft and the second rotating shaft; the fourth rotating shaft and the fifth rotating shaft are installed in the cleaning tank in an up-down staggered manner, and the fourth rotating shaft is located below the second rotating shaft, and the fifth rotating shaft is located below the third rotating shaft; the sixth rotating shaft is installed on the side of the cleaning tank near the crushing device; the tensioning rotating shaft and the pressing rotating shaft are installed in the cleaning tank in an up-down staggered manner and located between the sixth rotating shaft and the fifth rotating shaft; the first rotating shaft, the second rotating shaft, the third rotating shaft, the fourth rotating shaft, the fifth rotating shaft, the sixth rotating shaft, the tensioning rotating shaft and the pressing rotating shaft are distributed in parallel; the first sprocket is installed on the output shaft of the first motor; the second sprocket is installed on the end of the first rotating shaft; the first sprocket and the second sprocket are connected in transmission through the driving chain; a plurality of third sprockets are installed on the first rotating shaft, the second rotating shaft, the third rotating shaft, the fourth rotating shaft, the fifth rotating shaft, the sixth rotating shaft and the tensioning rotating shaft in sequence; the pressing wheel is installed on the pressing rotating shaft; the transmission chain is sequentially wound on a plurality of third sprockets and the pressing wheel, so that the transmission chain extends from one side of the cleaning tank to the other side and surrounds the residual film output device.

[0017] Further, the crushing device comprises a material box, two second motors, two main shafts and a plurality of crushing blades, the material box is open upward and downward; the material box is installed on the rack through a chassis; two second motors are installed on both sides of the material box respectively; two main shafts are installed in parallel inside the material box and are fixedly connected with the output shafts of two second motors respectively; a plurality of crushing blades are installed on two main shafts and are staggered.

[0018] The above-mentioned further technical scheme has the beneficial effect that it is used for film bundle crushing, and the material entering the water is in a scattered state as much as possible, which facilitates subsequent cleaning and impurity removal.

[0019] Further, the rolling screen device comprises a rolling screen, a first transmission tooth, a transmission shaft, two speed changers, a second transmission tooth and a plurality of water flow disturbance plates, the rolling screen is installed in the cleaning tank through a plurality of supporting wheels; a transmission chain penetrates the rolling screen; the first transmission tooth is fixed on the end face of the rolling screen; one end of the transmission shaft is drivingly connected with the second motor close to it through two speed changers; the second transmission tooth is installed on the transmission shaft and is meshingly connected with the first transmission tooth; a plurality of water flow disturbance plates are uniformly installed on the circumferential surface of the rolling screen.

[0020] The above-mentioned further technical scheme has the beneficial effect that the centrifugal rate generated by the rotating rolling screen maximizes the disturbance of the water flow, cleans the residual film while separating the impurities and residual film with large mass, and further improves the residual film separation efficiency.

[0021] Further, the residual film output device comprises a residual film combing wheel, a film discharging base, a film discharging auger, a fourth sprocket, a fifth sprocket, a sixth sprocket and a chain, the residual film combing wheel is rotatably installed on the support through its shaft end and is located between the first rotating shaft and the third rotating shaft; the film discharging base is installed on the support and is located below the residual film combing wheel; the film discharging base has a plurality of uniformly distributed through holes; the film discharging auger is located in the film discharging base, one end of the film discharging auger is a residual film discharging outlet; the fourth sprocket is installed on the other end of the first rotating shaft; the fifth sprocket is installed on one shaft end of the residual film combing wheel; the sixth sprocket is installed on one shaft end of the film discharging auger; the fourth sprocket, the fifth sprocket and the sixth sprocket are drivingly connected through the chain.

[0022] Further, the impurity removal device comprises an impurity removal tank, an impurity removal rack, an impurity removal bottom plate, an impurity removal motor, a driving shaft, a driven shaft, an impurity removal driving sprocket, an impurity removal driven sprocket, an impurity removal chain and a plurality of scrapers, the impurity removal tank is fixed on the side of the cleaning tank outer sidewall close to the crushing device, and the impurity removal tank and the cleaning tank are connected in communication through a backwater inlet; the impurity removal rack is fixed obliquely on one side of the impurity removal tank; the impurity removal rack is open at both ends; the impurity removal bottom plate is fixed on the bottom of the impurity removal rack, and the impurity removal bottom plate has a plurality of uniformly arranged water leakage holes; the impurity removal motor is installed on the impurity removal rack; the driving shaft and the driven shaft are respectively installed on both sides of the impurity removal rack and above the impurity removal bottom plate; the driving shaft is in transmission connection with the output shaft of the impurity removal motor; the impurity removal driving sprocket is installed on the driving shaft, and the impurity removal driven sprocket is installed on the driven shaft; the impurity removal driving sprocket and the impurity removal driven sprocket are in transmission connection through the impurity removal chain; and a plurality of the scrapers are respectively installed on the impurity removal chain at equal intervals.

[0023] Therefore, the waste residual film cleaning and impurity removal device provided by the present application has the following beneficial effects compared with the prior art: The present application optimizes the cleaning process, strengthens the mechanical force, improves the impurity separation efficiency, and recycles water resources, thereby improving the cleaning quality, significantly reducing the impurity content of the recovered residual film, meeting the quality requirements of the regenerated plastic raw material, having wide application adaptability and significant comprehensive benefits, being flexible and adaptable to material characteristics, being applicable to the cleaning of various solid wastes for resource recycling, and solving the key bottleneck of agricultural waste resource utilization from the source, which has important practical significance for promoting residual film management and sustainable development of green agriculture. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the provided drawings.

[0025] Figure 1 The accompanying drawings are schematic diagrams of the overall structure of a waste residual film cleaning and impurity removal device provided by the present application; Figure 2 The accompanying drawings are schematic diagrams of the overall structure of a waste residual film cleaning and impurity removal device provided by the present application; Figure 1 The accompanying drawings are schematic diagrams of the overall structure of a waste residual film cleaning and impurity removal device provided by the present application; Figure 3 The accompanying drawings are schematic diagrams of the overall structure of a waste residual film cleaning and impurity removal device provided by the present application; Figure 1 The accompanying drawings are schematic diagrams of the overall structure of a waste residual film cleaning and impurity removal device provided by the present application; Figure 4The drawing is a schematic view of the overall structure of the waste residual film cleaning and impurity removing device according to another aspect of the present application; Figure 5 The drawing is Figure 4 The drawing is a schematic view of the enlarged structure of the A part in the middle; Figure 6 The drawing is a schematic view of the structure of the crushing device according to the present application; Figure 7 The drawing is a schematic view of the structure of the crushing device according to the present application from another aspect; Figure 8 The drawing is a schematic view of the structure of the rolling screen device according to the present application. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present application.

[0027] As Figures 1-8 shown, the present application discloses a waste residual film cleaning and impurity removing device, which comprises a rack 1, a cleaning tank 2, a residual film conveying mechanism 3, a crushing device 4, a rolling screen device 5, a residual film output device 6 and an impurity removing device 7. The cleaning tank 2 is arranged on the rack 1 and can be directly placed on the edge of the rack 1 or bolted to the rack 1, which is not limited here. The residual film conveying mechanism 3 is installed inside the rack 1 and the cleaning tank 2. The crushing device 4, the rolling screen device 5 and the residual film output device 6 are arranged in sequence from left to right along the cleaning tank 2, and the crushing device 4 is located above the residual film conveying mechanism 3. The rolling screen device 5 is arranged inside the cleaning tank 2 and is in transmission connection with the crushing device 4. The residual film conveying mechanism 3 penetrates through the rolling screen device 5. The residual film output device 6 is installed on the rack 1 and is in transmission connection with the residual film conveying mechanism 3. The impurity removing device 7 is installed on the outer side wall of the cleaning tank 2 near the side of the crushing device 4 and is in communication with the inside of the cleaning tank 3. The present application can directly feed the baled residual film transported from the field into the crushing device 4, break the film bundle and break the wrapping of the residual film on the impurities to the maximum extent, which is beneficial to the subsequent film and impurity cleaning and separation. After the broken residual film falls into the water, it moves forward along the residual film conveying mechanism 3 against the water flow, and then under the action of the rolling screen device 5, the strong water flow disturbance completes the cleaning of the residual film on the residual film conveying mechanism 3. At the same time, the impurities such as cotton rods floating on the water surface enter the impurity removing device 7. Finally, the cleaned residual film is discharged from the residual film output device 6 along with the residual film conveying mechanism 3, realizing the cleaning and impurity removing of the residual film, improving the cleaning rate and cleaning efficiency of the residual film and improving the film and impurity separation efficiency and effect.

[0028] Specifically, the water circulation mechanism comprises a water pump 8 and a water pipe 9, the water pump 8 is installed on one side of the cleaning tank 2, one end of the water pipe 9 is connected with the water pump 8, the other end of the water pipe 9 extends to the other side of the cleaning tank 2, the water pump 8 pumps water, the water is transported from one side of the cleaning tank 2 to the other side of the cleaning tank 2 by the water pipe 9, and then flows back to the water pump 8, so that the water circulation is repeated.

[0029] Of course, in order to facilitate water replacement, the cleaning tank 2 has a drain port at the bottom, and a drain valve is installed on the drain port.

[0030] In order to further optimize the technical scheme of the application, the first spraying mechanism 10 and the second spraying mechanism 11 are arranged in sequence from left to right along the cleaning tank 2, and the first spraying mechanism 10 and the second spraying mechanism 11 are arranged above the residual film conveying mechanism 3, under the interaction of the rolling screen device 5 and the spraying mechanism, the strong water flow disturbance completely completes the cleaning of the residual film on the residual film conveying mechanism 3, realizes the purpose of maximizing the cleaning of the residual film and the separation of impurities, and greatly improves the impurity separation rate and the residual film cleanliness.

[0031] In the embodiment, the first spraying mechanism 10 and the second spraying mechanism 11 are the same in structure, and each comprises a spraying pipe and a plurality of nozzles, the plurality of nozzles are respectively and equally spaced installed on the spraying pipe and aligned with the cleaning tank 2, and a water source enters the spraying pipe through pressurization and is sprayed out through the plurality of nozzles.

[0032] Specifically, the impurity blocking wheel 12 is rotatably installed in the cleaning tank 2 through the shaft end, and the impurity blocking wheel 12 is located between the crushing device 4 and the first spraying mechanism 10, and the impurity blocking wheel 12 is located above the residual film conveying mechanism 3, which can press the residual film and impurities floating on the water surface into the water, and the impurities such as cotton rods floating on the water surface are blocked by the impurity blocking wheel 12 and flow to the side impurity discharge port (backwater port 21) along the water flow, so as to block the impurities floating back along the water flow and promote the impurities to enter the impurity discharge device 7.

[0033] Specifically, the residual film conveying mechanism 3 comprises a driving mechanism, a chain transmission mechanism and a plurality of hooks 31. The driving mechanism is installed on the support of the frame 1 near the residual film output device 6. The chain transmission mechanism 3 is installed inside the frame 1 and the cleaning tank 2, and the head end of the chain transmission mechanism 3 is located below the crushing device 4, and the tail end of the chain transmission mechanism 3 is located above the residual film output device 6 to surround the residual film output device 6. A plurality of hooks 31 are fixed at equal intervals on the side of the transmission chain 32 of the chain transmission mechanism. After the broken residual film falls into the water, it is hooked by the hooks 31 on the transmission chain 32 in the water, moves forward along the transmission chain 32 against the water flow. By arranging the hooks 31 on the side of the transmission chain 32, the residual film can be moved along the transmission chain 32, so as to convey the residual film to different areas for cleaning, separation and output operation, thereby improving the conveying efficiency of the residual film, ensuring the conveying effect and changing the conveying space with simple structure design. The impurity blocking wheel 12 corresponds to the position of the hook 31, and the impurity blocking wheel 12 is driven by the hook 31, achieving the purpose of energy saving and saving resources.

[0034] Specifically, the driving mechanism comprises a first motor 33, a first sprocket 34, a second sprocket 35 and a driving chain 36, the chain transmission mechanism comprises a first rotating shaft 37, a second rotating shaft 38, a third rotating shaft 39, a fourth rotating shaft 310, a fifth rotating shaft 311, a sixth rotating shaft 312, a tensioning rotating shaft 313, a pressing rotating shaft 314, a plurality of third sprockets 315, a pressing wheel 316 and a transmission chain 32, the first motor 33 is installed on the support; the first rotating shaft 37 and the second rotating shaft 38 are respectively installed on the top wall of the support through bearing seats; the third rotating shaft 39 is installed on the support through a bearing seat and located between the first rotating shaft 37 and the second rotating shaft 38; the fourth rotating shaft 310 and the fifth rotating shaft 311 are installed in the cleaning tank 2 in an up-down staggered manner, and the fourth rotating shaft 310 is located below the second rotating shaft 38, and the fifth rotating shaft 311 is located below the third rotating shaft 39; the sixth rotating shaft 312 is installed on one side of the cleaning tank 2 close to the crushing device 4; the tensioning rotating shaft 313 and the pressing rotating shaft 314 are installed in the cleaning tank 2 in an up-down staggered manner and located between the sixth rotating shaft 312 and the fifth rotating shaft 311; the first rotating shaft 37, the second rotating shaft 38, the third rotating shaft 39, the fourth rotating shaft 310, the fifth rotating shaft 311, the sixth rotating shaft 312, the tensioning rotating shaft 313 and the pressing rotating shaft 314 are distributed in parallel; the first sprocket 34 is installed on the output shaft of the first motor 33; the second sprocket 35 is installed on the end of the first rotating shaft 37; the first sprocket 34 and the second sprocket 35 are drivingly connected through the driving chain 36; the plurality of third sprockets 315 are sequentially and correspondingly installed on the first rotating shaft 37, the second rotating shaft 38, the third rotating shaft 39, the fourth rotating shaft 310, the fifth rotating shaft 311, the sixth rotating shaft 312 and the tensioning rotating shaft 313; the pressing wheel 316 is installed on the pressing rotating shaft 314 for pressing the transmission chain 32 downward to press the residual film into water; the transmission chain 32 is sequentially wound on the plurality of third sprockets 315 and the pressing wheel 316, so that the transmission chain 32 extends from one side to the other side of the cleaning tank 2 and surrounds the residual film output device 6.

[0035] Specifically, the crushing device 4 comprises a material box 41, two second motors 42, two main shafts 43 and a plurality of crushing blades 44, the material box 41 is open at the top and bottom, the film bundle is put in from the top, and the crushed material is output from the bottom; the material box 41 is installed on the rack 1 through a chassis 45; the two second motors 42 are respectively installed on the two sides of the material box 41; the two main shafts 43 are installed in parallel inside the material box 41 and are fixedly connected with the output shafts of the two second motors 42, and the two second motors 42 drive the two main shafts 43 to rotate in opposite directions; the plurality of crushing blades 44 are respectively installed on the two main shafts 43 and are staggered, for crushing the film bundle, so that the material entering the water is in a dispersed state as much as possible, facilitating subsequent cleaning and impurity removal.

[0036] Specifically, the rolling sieve device 5 includes a rolling sieve 51, a first transmission tooth 52, a transmission shaft 53, two variable speed commutators 54, a second transmission tooth and a plurality of water flow disturbance plates 55, the rolling sieve 51 is installed in the cleaning tank 2 through a plurality of supporting wheels; the transmission chain 32 penetrates the rolling sieve 51; the first transmission tooth 52 is fixed on the end face of the rolling sieve 51; one end of the transmission shaft 53 is in transmission connection with the second motor 42 close to it through the two variable speed commutators 54; the second transmission tooth is installed on the transmission shaft 53 and is in meshing connection with the first transmission tooth 52, the second motor 42 transmits power to the rolling sieve 51 through the transmission shaft 53, the two variable speed commutators 54 and the gear set, the rolling sieve 51 speed is adjustable according to the variable speed commutator 54, and the main shaft 43 speed of the crushing device 4 realizes linkage, that is, when the main shaft 43 speed of the crushing device 4 is accelerated, the material discharging amount increases, and at the same time, the rolling sieve 51 speed increases; a plurality of water flow disturbance plates 55 are uniformly installed on the circumferential surface of the rolling sieve 51, the centrifugal rate generated by the rotating rolling sieve 51 maximizes the disturbance of the water flow, the quality of the impurities and the residual film is separated while the residual film is cleaned, and the residual film separation efficiency is improved again.

[0037] Specifically, the residual film output device 6 includes a residual film combing wheel 61, a film discharging base 62, a film discharging auger 63, a fourth sprocket 64, a fifth sprocket 65, a sixth sprocket 66 and a chain 67, the residual film combing wheel 61 is rotatably installed on the support through its shaft end and is located between the first rotating shaft 37 and the third rotating shaft 39; the film discharging base 62 is installed on the support and located below the residual film combing wheel 61; the film discharging base 62 has a plurality of uniformly distributed through holes, which can extrude the residual film as much as possible while discharging clean residual film, and discharge water, reducing water waste in the washing process; the film discharging auger 63 is located in the film discharging base 62, and one end of the film discharging auger 63 is a residual film discharging port; the fourth sprocket 64 is installed on the other end of the first rotating shaft 37; the fifth sprocket 65 is installed on one shaft end of the residual film combing wheel 61; the sixth sprocket 66 is installed on one shaft end of the film discharging auger 63; the fourth sprocket 64, the fifth sprocket 65 and the sixth sprocket 66 are in transmission connection through the chain 67, the cleaned residual film falls into the film discharging auger 63 under the brushing of the residual film combing wheel 61 along the hook tooth 31, and finally the clean residual film is discharged from the residual film discharging port and is uniformly collected.

[0038] Specifically, the impurity removal device 7 comprises an impurity removal tank 71, an impurity removal frame 72, an impurity removal bottom plate 73, an impurity removal motor 74, a driving shaft, a driven shaft, an impurity removal driving sprocket, an impurity removal driven sprocket, an impurity removal chain 75 and a plurality of scrapers 76. The impurity removal tank 71 is fixed on the outer side wall of the cleaning tank 2 near the side of the crushing device 4, and the impurity removal tank 71 is in communication with the cleaning tank 2 through the backwater port 21. The impurity removal frame 72 is fixed obliquely on one side of the impurity removal tank 71. The impurity removal frame 72 is open at both ends. The impurity removal bottom plate 73 is fixed on the bottom of the impurity removal frame 72. The impurity removal bottom plate 73 has a plurality of uniformly distributed water leakage holes, which can reduce the waste of water resources as much as possible. The impurity removal motor 74 is installed on the impurity removal frame 72. The driving shaft and the driven shaft are respectively installed on both sides of the impurity removal frame 72 and above the impurity removal bottom plate 73. The driving shaft is in transmission connection with the output shaft of the impurity removal motor 74. The impurity removal driving sprocket is installed on the driving shaft, and the impurity removal driven sprocket is installed on the driven shaft. The impurity removal driving sprocket and the impurity removal driven sprocket are in transmission connection through the impurity removal chain 75. A plurality of scrapers 76 are respectively installed on the impurity removal chain 75 at equal intervals. The straw and other impurities entering the impurity removal tank 71 are scraped out of the water surface by the scrapers 76, and the backflow water flows into the cleaning tank 2 from the backwater port 21.

[0039] It can be understood that, in order to improve the automation level, the application further comprises a control cabinet 13, which is electrically connected with the water pump 8, the first motor 33, the second motor 42 and the impurity removal motor 74 respectively, so as to control the opening and the speed regulation thereof.

[0040] The working process of the application is as follows: Before running, a certain amount of water is injected into the cleaning tank 2. When the running button on the control cabinet 13 is pressed, the water pump 8 starts to pump water, which is transported by the water pipe 9 from one side of the cleaning tank 2 to the other side of the cleaning tank 2, and then flows back to the water pump 8, and so on. Next, the bale material is put into the crushing device 4 by the grabbing machine, and the bale residual film is crushed. The crushed residual film falls into the water. The hook tooth 31 arranged on the side of the transmission chain 32 drives the residual film to move forward. When the transmission chain 32 is driven, the hook tooth 31 drives the impurity blocking wheel 12 to rotate. While rotating, the impurity blocking wheel 12 can press the residual film and impurities floating on the water surface into the water, and can also block the impurities floating back with the water flow, so as to make the impurities enter the water return port 21 (impurity discharge port). The residual film and impurities are driven by the transmission chain 32 to enter the first spraying area, and the first spraying mechanism 10 sprays the residual film and impurities floating on the water surface for the first time. The residual film and impurities are driven by the rolling screen 51 to separate the impurities. The impurities float on the water surface and enter the impurity discharge tank 71 through the water return port 21. Then, under the action of the impurity discharge device 7, the impurities are discharged. The residual film and a small amount of impurities are driven by the transmission chain 32 to enter the second spraying area after passing through the rolling screen 51. The second spraying mechanism 11 sprays the residual film and impurities floating on the water surface for the second time, so as to separate the impurities and the residual film completely, and further clean the residual film. Finally, the residual film is driven by the hook tooth 31 to the residual film combing wheel 61 along with the transmission chain 32. The residual film is combed off from the hook tooth and falls into the residual film discharge auger 63 below under the action of the combing, and is finally discharged through the residual film discharge port.

[0041] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts of each embodiment can be referred to each other. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the related parts can be referred to the method part.

[0042] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A waste and old residual film cleaning and impurity removing device, characterized in that, The device comprises a rack, a cleaning tank, a residual film conveying mechanism, a crushing device, a rolling screen device, a residual film output device and a foreign matter discharging device, the cleaning tank is arranged on the rack, the residual film conveying mechanism is installed inside the rack and the cleaning tank, the crushing device, the rolling screen device and the residual film output device are arranged in sequence from left to right along the cleaning tank, the crushing device is located above the residual film conveying mechanism, the rolling screen device is arranged inside the cleaning tank and is in transmission connection with the crushing device, the residual film conveying mechanism penetrates through the rolling screen device, the residual film output device is installed on the rack and is in transmission connection with the residual film conveying mechanism, and the foreign matter discharging device is installed on the side wall of the cleaning tank close to the crushing device and is in communication with the inside of the cleaning tank.

2. The waste and old residual film cleaning and impurity removing device according to claim 1, characterized in that, The device further comprises a water circulation mechanism, the water circulation mechanism comprises a water pump and a water pipe, the water pump is installed on one side of the cleaning tank, one end of the water pipe is connected with the water pump, and the other end of the water pipe extends to the other side of the cleaning tank.

3. The waste and old residual film cleaning and impurity removing device according to claim 1, characterized in that, The device further comprises a first spraying mechanism and a second spraying mechanism, the first spraying mechanism, the rolling screen device and the second spraying mechanism are arranged in sequence from left to right along the cleaning tank, and the first spraying mechanism and the second spraying mechanism are arranged above the residual film conveying mechanism.

4. The waste and old residual film cleaning and impurity removing device according to claim 1, characterized in that, The device further comprises a foreign matter blocking wheel, the foreign matter blocking wheel is rotatably installed in the cleaning tank through the shaft end, the foreign matter blocking wheel is located between the crushing device and the first spraying mechanism, and the foreign matter blocking wheel is located above the residual film conveying mechanism.

5. The waste and old residual film cleaning and impurity removing device according to claim 4, characterized in that, The residual film conveying mechanism comprises a driving mechanism, a chain transmission mechanism and a plurality of hook teeth, the driving mechanism is installed on the support of the rack close to the residual film output device, the chain transmission mechanism is installed inside the rack and the cleaning tank, the leading end of the chain transmission mechanism is located below the crushing device, the trailing end of the chain transmission mechanism is located above the residual film output device to surround the residual film output device, the plurality of hook teeth are fixed on the side of the transmission chain of the chain transmission mechanism at equal intervals, and the foreign matter blocking wheel corresponds to the positions of the hook teeth.

6. The waste and old residual film cleaning and impurity removing device according to claim 5, characterized in that, The driving mechanism comprises a first motor, a first sprocket, a second sprocket and a driving chain, the chain transmission mechanism comprises a first rotating shaft, a second rotating shaft, a third rotating shaft, a fourth rotating shaft, a fifth rotating shaft, a sixth rotating shaft, a tension rotating shaft, a compression rotating shaft, a plurality of third sprockets, a compression wheel and the transmission chain, the first motor is installed on the support; the first rotating shaft and the second rotating shaft are respectively installed on the top wall of the support through bearing seats; the third rotating shaft is installed on the support through a bearing seat and located between the first rotating shaft and the second rotating shaft; the fourth rotating shaft and the fifth rotating shaft are installed in the cleaning tank in an up-down staggered manner, and the fourth rotating shaft is located below the second rotating shaft, and the fifth rotating shaft is located below the third rotating shaft; the sixth rotating shaft is installed on one side of the cleaning tank close to the crushing device; the tension rotating shaft and the compression rotating shaft are installed in the cleaning tank in an up-down staggered manner and located between the sixth rotating shaft and the fifth rotating shaft; the first rotating shaft, the second rotating shaft, the third rotating shaft, the fourth rotating shaft, the fifth rotating shaft, the sixth rotating shaft, the tension rotating shaft and the compression rotating shaft are distributed in parallel; the first sprocket is installed on the output shaft of the first motor; the second sprocket is installed on the end of the first rotating shaft; the first sprocket and the second sprocket are drivingly connected through the driving chain; a plurality of third sprockets are sequentially and correspondingly installed on the first rotating shaft, the second rotating shaft, the third rotating shaft, the fourth rotating shaft, the fifth rotating shaft, the sixth rotating shaft and the tension rotating shaft; the compression wheel is installed on the compression rotating shaft; the transmission chain is sequentially wound on a plurality of third sprockets and the compression wheel, so that the transmission chain extends from one side of the cleaning tank to the other side and surrounds the residual film output device.

7. The waste and old residual film cleaning and impurity removing device according to claim 1, characterized in that, The crushing device comprises a material box, two second motors, two main shafts and a plurality of crushing blades, the material box is open at the top and bottom; the material box is installed on the rack through a chassis; two second motors are respectively installed on the two sides of the material box; Two main shafts are installed in parallel inside the material box and are respectively fixedly connected with the output shafts of two second motors; a plurality of crushing blades are respectively installed on two main shafts and are staggered.

8. The waste and old residual film cleaning and impurity removing device according to claim 7, characterized in that, The rolling screen device comprises a rolling screen, a first transmission tooth, a transmission shaft, two variable speed commutators, a second transmission tooth and a plurality of water flow disturbance plates, the rolling screen is installed in the cleaning tank through a plurality of supporting wheels; a transmission chain penetrates the rolling screen; the first transmission tooth is fixed on the end face of the rolling screen; one end of the transmission shaft is drivingly connected with the second motor close to it through two variable speed commutators; the second transmission tooth is installed on the transmission shaft and is meshingly connected with the first transmission tooth; a plurality of water flow disturbance plates are uniformly installed on the circumferential surface of the rolling screen.

9. The waste and old residual film cleaning and impurity removing device according to claim 6, characterized in that, The residual film output device comprises a residual film combing wheel, a residual film discharging base, a residual film discharging auger, a fourth chain wheel, a fifth chain wheel, a sixth chain wheel and a chain, the residual film combing wheel is rotatably installed on the support through its shaft end and is located between the first rotating shaft and the third rotating shaft, the residual film discharging base is installed on the support and is located below the residual film combing wheel, the residual film discharging base has a plurality of uniformly distributed through holes, the residual film discharging auger is located in the residual film discharging base, one end of the residual film discharging auger is a residual film discharging outlet, the fourth chain wheel is installed on the other end of the first rotating shaft, the fifth chain wheel is installed on one shaft end of the residual film combing wheel, the sixth chain wheel is installed on one shaft end of the residual film discharging auger, and the fourth chain wheel, the fifth chain wheel and the sixth chain wheel are drivingly connected through the chain.

10. The waste and old residual film cleaning and impurity removing device according to claim 1, characterized in that, The impurity discharging device comprises an impurity discharging tank, an impurity discharging frame, an impurity discharging bottom plate, an impurity discharging motor, a driving shaft, a driven shaft, an impurity discharging driving chain wheel, an impurity discharging driven chain wheel, an impurity discharging chain and a plurality of scrapers, the impurity discharging tank is fixed on the outer side wall of the cleaning tank close to one side of the crushing device, and the impurity discharging tank and the cleaning tank are connected in communication through a backwater inlet; the impurity discharging frame is fixedly inclined on one side of the impurity discharging tank; the impurity discharging frame is open at both ends; the impurity discharging bottom plate is fixed on the bottom of the impurity discharging frame, and the impurity discharging bottom plate has a plurality of uniformly arranged water leakage holes; the impurity discharging motor is installed on the impurity discharging frame; the driving shaft and the driven shaft are respectively installed on both sides of the impurity discharging frame and are located above the impurity discharging bottom plate; the driving shaft is drivingly connected with the output shaft of the impurity discharging motor; the impurity discharging driving chain wheel is installed on the driving shaft, and the impurity discharging driven chain wheel is installed on the driven shaft; the impurity discharging driving chain wheel and the impurity discharging driven chain wheel are drivingly connected through the impurity discharging chain; and a plurality of the scrapers are respectively and equally spaced installed on the impurity discharging chain.

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