A residual film mixture washing and separation device

Abstract

The invention discloses a residual film mixture water washing and separation device, which relates to the technical field of agricultural machinery, including a frame, a crushing and air selection system, a film feeding roller, a cleaning system, a cleaning tank, a hook-tooth film washing mechanism, a film unloading mechanism and a spiral conveying mechanism; the crushing and air selection system is installed on the left side of the frame, the film feeding roller is arranged at the right end of the crushing and air selection system, the hook-tooth film washing mechanism is arranged on the right side of the film feeding roller, the cleaning system is arranged on the upper end of the hook-tooth film washing mechanism, the film unloading mechanism is arranged on the right side of the hook-tooth film washing mechanism, and the spiral conveying mechanism is arranged on the right side of the film unloading mechanism. The invention has a reasonable layout, a compact structure, saves resources, has a good effect of separating straw from residual film, is convenient for the recycling of residual film, and is more practical; it is beneficial to the protection of the environment.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, and in particular to a residual film mixture water washing and separation device. Background Art

[0002] Film mulching technology has been widely used in agriculture due to its good heat preservation, water retention and weed suppression effects, which has greatly promoted the increase of crop yields and incomes. However, with the increase in the use of film mulching technology, the disadvantages of film mulching technology have become increasingly prominent. The "white pollution" it brings not only easily deteriorates the soil structure, but also has a serious impact on the ecological environment.

[0003] With the development of agricultural equipment technology, the recycling and subsequent treatment of residual film have received more and more attention. According to statistics, my country has developed more than 100 types of residual film recycling machines, which can basically solve the problem of residual film. However, the residual film recycled by the existing residual film recycling machines generally has high sediment content and difficulty in separating residual film from straw, resulting in the residual film mixture after recycling being randomly piled up, buried or burned, which not only pollutes the environment, but also wastes resources.

[0004] Both residual film and straw are important recyclable resources. Residual film is a thermoplastic. When its cleanliness meets the standard and the melting temperature is appropriate, the plastic particles produced still have good application prospects. Straw is a biomass resource with a high degree of lignification, which can be used for papermaking and power generation. Obviously, if you want to achieve the secondary utilization of residual film and straw, separating them from each other is an indispensable link. In this regard, my country has successively developed some residual film mixture separation devices, which mostly use vibration or air selection methods to separate residual film mixtures. There are generally problems such as poor separation effect of residual film and straw, and high amount of soil adhesion on the surface, which makes it difficult to meet the recycling standards.

[0005] How to develop a residual film mixture water washing and separation device for washing and separating agricultural field residual film mixture so that the residual film can be recycled has become a technical problem that needs to be solved urgently by technicians in this field. Summary of the invention

[0006] The purpose of the present invention is to provide a residual membrane mixture water washing and separation device to solve the problems listed in the background technology.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] The present invention discloses a residual film mixture washing and separation device, comprising a frame, on which a crushing and air separation system, a film feeding roller, a debris removal system, a cleaning tank, a hook-tooth type film washing mechanism, a film unloading mechanism and a spiral conveying mechanism are installed;

[0009] The crushing and air separation system is installed on the left side of the frame, the film feeding roller is arranged at the right end of the crushing and air separation system, the hook-tooth film washing mechanism is arranged on the right side of the film feeding roller, the impurity cleaning system is arranged at the upper end of the hook-tooth film washing mechanism, the film unloading mechanism is arranged on the right side of the hook-tooth film washing mechanism, and the spiral conveying mechanism is arranged on the right side of the film unloading mechanism; except the crushing and air separation system, the film feeding roller, the impurity cleaning system, the hook-tooth film washing mechanism, the film unloading mechanism and the spiral conveying mechanism are all installed in the cleaning tank;

[0010] During operation, the initial residual film mixture is added to the pulverizing and air separation system, and is separated into a mixture of straw, soil and residual film after preliminary air separation. The straw and soil with a higher specific gravity are discharged through the pulverizing and air separation system, and the separated residual film is blown into the cleaning tank by the pulverizing and air separation system for water washing. After the straw and soil wrapped in the residual film are separated again, the straw floats on the water and is discharged from the top of the cleaning tank, and the soil is discharged from the bottom of the cleaning tank after settling by its own gravity for a period of time;

[0011] The residual film enters the lower water body of the cleaning tank under the disturbance of the film feeding roller, and is continuously transported to the film unloading roller in the film unloading mechanism through the hook-tooth type film washing mechanism, and the residual film after cleaning is removed, and the removed residual film is discharged through the spiral conveying mechanism.

[0012] Preferably, the frame is formed by connecting rigid rods arranged horizontally and vertically, and the frame as a whole is a rectangular parallelepiped frame.

[0013] Preferably, the pulverizing and air separation system comprises a pulverizing and air separation mechanism, a transmission belt and a pulverizing motor;

[0014] The pulverizing and air selection mechanism comprises a straw outlet, a blower, a pulverizing roller assembly, a gear transmission assembly, a residual film mixture outlet and a pulverizing box, a straw outlet is arranged at the lower left part of the pulverizing box, the residual film mixture outlet is arranged at the right side of the pulverizing box, the residual film mixture outlet is higher than the straw outlet, two blowers are arranged above the straw outlet, the air outlet of the blower is flush with the film inlet end of the residual film mixture outlet, the residual film mixture outlet is connected to the cleaning pool, the pulverizing roller assembly is installed inside the pulverizing box and corresponds to the feed opening at the upper end, the pulverizing roller assembly comprises two pulverizing rollers with opposite rotation directions, and the ends of the pulverizing rollers are transmission-connected via the gear transmission assembly;

[0015] The pulverizing motor is mounted on the frame, and the pulverizing motor is connected to the gear transmission assembly through the transmission belt.

[0016] Preferably, the film feeding roller comprises a film feeding roller main shaft and film feeding teeth, and the film feeding teeth are circumferentially distributed on the cylindrical surface of the film feeding roller main shaft; both ends of the film feeding roller are rotatably connected in the cleaning pool, and the position of the film feeding roller corresponds to the outlet of the residual film mixture.

[0017] Preferably, the cleaning tank comprises a debris discharge port, a sewage valve, a sedimentation tank and a filter plate, wherein the debris discharge port is symmetrically opened in the cleaning tank and is located on the top edge of the cleaning tank; the filter plate is located at the bottom of the cleaning tank, and circular through holes are distributed on the filter plate; the sedimentation tank is located below the filter plate, and two sewage valves are connected to the left and right ends of the bottom surface of the sedimentation tank.

[0018] Preferably, the cleaning system comprises a water pump, a water inlet pipe, a water outlet pipe, an arc-shaped nozzle and a guide triangular plate; the water pump is connected to the bottom of the frame and is located at one end of the spiral conveying mechanism; one end of the water inlet pipe is connected to the water pump, and the other end of the water inlet pipe is connected to the water body inside the cleaning pool; one end of the water outlet pipe is connected to the water pump, and the other end of the water outlet pipe is connected to the arc-shaped nozzle, and the water outlet pipe on which the arc-shaped nozzle is installed is installed on the frame and close to the film feeding roller; the water inlet pipe and the water outlet pipe are fixed on the frame in an orderly manner;

[0019] The guide triangle is placed vertically on the top of the cleaning pool, one end of the top angle of the guide triangle is connected to the outlet pipe located above, one end of the bottom angle of the guide triangle is connected to the side plate of the cleaning pool and corresponds to the impurity discharge port of the cleaning pool, and the guide triangle is provided with water-passing holes distributed in a matrix.

[0020] Preferably, the hook-tooth type film washing mechanism comprises hook teeth, a hook-tooth shaft, a transmission sprocket, a transmission main shaft, a connecting plate and a transmission chain;

[0021] The hook teeth are evenly distributed on the hook tooth shaft; both ends of the hook tooth shaft are connected to the transmission chain, and the hook tooth shaft and the connecting plate are spaced and connected to the transmission chain; four transmission sprockets are installed at both ends of the two transmission main shafts, and the two transmission sprockets on the same side are connected together through the transmission chain, one of the transmission main shafts is connected to the film unloading motor through two sets of sprocket chain assemblies, and the film unloading motor drives the transmission sprocket to rotate, and then drives the hook tooth shaft to move through the transmission chain;

[0022] The hook-tooth type membrane washing mechanism is connected to the cleaning tank as a whole through the transmission main shaft, and the hook-tooth type membrane washing mechanism is parallel to the bottom of the cleaning tank.

[0023] Preferably, the film unloading mechanism includes a film unloading roller, a film unloading motor and a first chain, the film unloading roller includes a film unloading roller main shaft and a film unloading scraper, the film unloading scraper is circumferentially distributed on the cylindrical surface of the film unloading roller main shaft, and the film unloading scraper is staggered with a group of the hook teeth on the right side; the film unloading motor is installed at the bottom of the right side of the frame, and the film unloading motor is connected to the transmission wheel at the end of the film unloading roller through the first chain, and the two ends of the film unloading roller are rotatably installed on the cleaning tank.

[0024] Preferably, the screw conveying mechanism comprises a film inlet, a variable pitch auger, an auger cover, an auger motor, a fourth chain, a fifth chain, a film discharge impeller and a film outlet; the auger cover is installed on the right side of the cleaning tank, the film inlet is provided at the lower part of the auger cover, the film inlet is built into the cleaning tank, and the film inlet is adjacent to the film unloading roller; the variable pitch auger is rotatably connected to the auger cover, one end of the variable pitch auger is rotatably connected to the bottom of the cleaning tank through a bearing, and the other end is connected to the film discharge impeller, the auger motor is installed at the left end of the film discharge impeller, the auger motor is connected to the film discharge impeller through the fourth chain, and the auger motor is connected to the driving sprocket at the other end of the variable pitch auger through the fifth chain; circular through holes are distributed on the inner wall of the auger cover and the variable pitch auger; the upper end of the film outlet corresponds to the film discharge impeller, and the lower end of the film outlet extends out of the cleaning tank.

[0025] Preferably, the film unloading roller is connected to the transmission main shaft on one side of the hook-tooth film washing device through a second chain; the transmission main shaft on the other side of the hook-tooth film washing device is connected to the film feeding roller through a third chain.

[0026] Compared with the prior art, the beneficial technical effects of the present invention are:

[0027] 1) The crushing and air separation mechanism can pre-separate the residual film mixture, so that the residual film wrapped with a small amount of straw and sediment enters the cleaning tank from the residual film mixture outlet for cleaning under the action of the blower, while most of the straw and sediment are discharged from the straw outlet under the action of their own gravity, which can effectively perform preliminary separation of the residual film and the straw;

[0028] 2) The cleaning system is installed on the upper part of the cleaning pool, and the filter plate and the sedimentation tank are provided at the bottom. When the residual film mixture enters the cleaning pool, the straw floats on the water surface under the action of buoyancy, and moves along the guide triangular plate to the discharge port for discharge under the action of the water jet from the arc-shaped nozzle. Circular through holes are evenly distributed on the surface of the guide triangular plate. When the straw moves toward the discharge port under the action of the jet water, the water will gradually flow through the through holes and will not flow out of the discharge port with the straw, thus saving water resources to a great extent; and the silt is deposited in the sedimentation tank through the filter plate and discharged by the sewage valve. In this process, the filter plate can not only effectively block the residual film, but also reduce the influence of the disturbed water flow on the sedimentation;

[0029] 3) The hook-tooth film washing mechanism transmission chain is staggered with the hook-tooth shaft and the connecting plate. When the hook-tooth film washing mechanism starts to work, the residual film will enter the lower water body under the action of the hook belt of the hook teeth, and will be continuously transported to the film unloading roller, where it will be unloaded by the film unloading roller. During this process, since the distance between the hook-tooth shaft and the connecting plate is very small, the residual film will not float upward under the action of the hook belt of the hook teeth, and the top of the hook teeth is bent at a certain angle, which can effectively prevent the residual film from being entangled on the hook teeth, which is beneficial for the film unloading roller to unload the residual film and ensure the secondary separation effect of the residual film and straw.

[0030] 4) The top profile of the film feeding teeth is curved, which can effectively prevent residual film from winding around the film feeding teeth when the film feeding roller rotates; the top profile of the film unloading scraper is also curved, and circular through holes are distributed on its surface, which can not only prevent residual film from winding around the film unloading scraper, but also reduce the influence of the disturbed water flow generated when the film unloading roller rotates on the film unloading process;

[0031] 5) The auger motor drives the film discharge impeller to rotate via the fourth chain, and drives the variable pitch auger to rotate via the fifth chain, and the rotation speed of the film discharge impeller is greater than the rotation speed of the variable pitch auger, which can prevent the residual film from being blocked at the film outlet; in addition, circular through holes are evenly distributed on the inner wall of the auger cover and the variable pitch auger. When the residual film is transported, the moisture carried by the residual film will flow into the cleaning pool from the through holes under the squeezing action of the variable pitch auger, which can not only effectively reduce the use of water resources, but also squeeze out the residual film to facilitate subsequent processing.

[0032] In general, the present invention has a reasonable layout, a compact structure, saves resources, has a good effect of separating straw from residual film, is convenient for recycling residual film, and is more practical; it is beneficial to environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be further described below in conjunction with the accompanying drawings.

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 This is a schematic diagram of the structure of the crushing and air separation mechanism of the present invention;

[0036] Figure 3 It is a schematic diagram of the structure of the film feeding roller of the present invention;

[0037] Figure 4 This is a schematic diagram of the structure of the cleaning system of the present invention;

[0038] Figure 5 It is a cross-sectional view of the cleaning pool of the present invention;

[0039] Figure 6 It is a schematic diagram of the structure of the hook-tooth type film washing mechanism of the present invention;

[0040] Figure 7 This is a schematic diagram of the film unloading roller structure of the present invention;

[0041] Figure 8 It is a cross-sectional view of the spiral conveying mechanism of the present invention.

[0042] Description of reference numerals: 1. frame; 2. crushing and air selection mechanism; 201. straw outlet; 202. blower; 203. crushing roller assembly; 204. gear transmission assembly; 205. residual film mixture outlet; 206. crushing box; 3. film feeding roller; 301. film feeding roller main shaft; 302. film feeding teeth; 4. debris cleaning system; 401. water pump; 402. water inlet pipe; 403. water outlet pipe; 404. arc nozzle; 405. guide triangle plate; 5. cleaning tank; 501. debris discharge port; 502. sewage valve; 503. sedimentation tank; 504. filter plate; 6. hook-tooth type film washing mechanism; 601, hook tooth; 602, hook tooth shaft; 603, transmission sprocket; 604, transmission main shaft; 605, connecting plate; 606, transmission chain; 7, film unloading roller; 701, film unloading roller main shaft; 702, film unloading scraper; 8, spiral conveying mechanism; 801, film inlet; 802, variable pitch auger; 803, auger cover; 804, auger motor; 805, fourth chain; 806, fifth chain; 807, film discharge impeller; 808, film outlet; 9, film unloading motor; 10, first chain; 11, second chain; 12, third chain; 13, transmission belt; 14, crushing motor. DETAILED DESCRIPTION

[0043] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0044] like Figure 1-8 As shown, a residual film mixture washing and separation device comprises a frame 1, on which a crushing and air separation system, a film feeding roller 3, a debris removal system 4, a cleaning tank 5, a hook-tooth film washing mechanism 6, a film unloading mechanism and a screw conveying mechanism 8 are installed;

[0045] The crushing and air separation system is installed on the left side of the frame 1, the film feeding roller 3 is arranged at the right end of the crushing and air separation system, the hook-tooth film washing mechanism 6 is arranged on the right side of the film feeding roller 3, the impurity removal system 4 is arranged on the upper end of the hook-tooth film washing mechanism 6, the film unloading mechanism is arranged on the right side of the hook-tooth film washing mechanism 6, and the spiral conveying mechanism 8 is arranged on the right side of the film unloading mechanism; except the crushing and air separation system, the film feeding roller 3, the impurity removal system 4, the hook-tooth film washing mechanism 6, the film unloading mechanism and the spiral conveying mechanism 8 are all installed in the cleaning tank 5;

[0046] During operation, the initial residual film mixture is added to the pulverizing and air separation system, and is separated into straw, soil and the separated residual film mixture after preliminary air separation. The straw and soil with higher specific gravity are discharged through the pulverizing and air separation system, and the separated residual film mixture is blown into the cleaning tank 5 by the pulverizing and air separation system for water washing. After the straw and soil wrapped in the residual film are separated again, the straw floats on the water and is discharged from the top of the cleaning tank 5, and the soil is first precipitated in the sedimentation tank 503 under the action of its own gravity, and after accumulating for a certain period of time, it is discharged through the sewage valve 502 at the bottom of the cleaning tank 5;

[0047] The residual film enters the lower water body of the cleaning pool 5 under the disturbance action of the film feeding roller 3, and is continuously transported to the film unloading roller 7 in the film unloading mechanism through the hook-tooth film washing mechanism 6, and the residual film after cleaning is removed, and the removed residual film is discharged through the screw conveying mechanism 8.

[0048] Specifically, the frame 1 is formed by connecting rigid rods arranged horizontally and vertically, and the frame 1 is a rectangular frame as a whole.

[0049] like Figure 2As shown, the pulverizing and air selection system includes a pulverizing and air selection mechanism 2, a transmission belt 13 and a pulverizing motor 14; the pulverizing and air selection mechanism 2 includes a straw outlet 201, a blower 202, a pulverizing roller assembly 203, a gear transmission assembly 204, a residual film mixture outlet 205 and a pulverizing box 206, the straw outlet 201 is arranged at the lower left part of the pulverizing box 206, the residual film mixture outlet 205 is arranged on the right side of the pulverizing box 206, the residual film mixture outlet 205 is higher than the straw outlet 201, two blowers 202 are arranged above the straw outlet 201, the air outlet of the blower 202 is flush with the film inlet end of the residual film mixture outlet 205, the residual film mixture outlet 205 is connected to the cleaning pool 5, the pulverizing roller assembly 203 is installed inside the pulverizing box 206 and corresponds to the feed opening at the upper end, the pulverizing roller assembly 203 includes two pulverizing rollers with opposite rotation directions, and the ends of the pulverizing rollers are transmission-connected through the gear transmission assembly 204;

[0050] The pulverizing motor 14 is mounted on the frame 1 , and the pulverizing motor 14 is connected to the gear transmission assembly 204 via the transmission belt 13 .

[0051] The crushing and air separation mechanism 2 can first pre-treat the residual film mixture, so that the residual film containing a small amount of straw and mud enters the cleaning tank 5 from the residual film mixture outlet 205 for cleaning under the action of the blower 202, while most of the straw and mud are discharged from the straw outlet 201 under the action of their own gravity, which can effectively perform a preliminary separation of the residual film and the straw.

[0052] like Figure 3 As shown, the film feeding roller 3 includes a film feeding roller main shaft 301 and film feeding teeth 302, and the film feeding teeth 302 are circumferentially distributed on the cylindrical surface of the film feeding roller main shaft 301; both ends of the film feeding roller 3 are rotatably connected in the cleaning tank 5, and the position of the film feeding roller 3 corresponds to the residual film mixture outlet 205. The top profile of the film feeding teeth 302 is a curve shape, and when the film feeding roller 3 rotates, it can effectively prevent the residual film from being wound around the film feeding teeth 302.

[0053] like Figure 5 As shown, the cleaning tank 5 includes a debris discharge port 501, a sewage valve 502, a sedimentation tank 503 and a filter plate 504. The debris discharge port 501 is symmetrically opened in the cleaning tank 5 and is located on the top edge of the cleaning tank 5; the filter plate 504 is located at the bottom of the cleaning tank 5, and circular through holes are distributed on the filter plate 504; the sedimentation tank 503 is located below the filter plate 504, and two sewage valves 502 are connected to the left and right ends of the bottom surface of the sedimentation tank 503.

[0054] like Figure 4 As shown, the cleaning system 4 includes a water pump 401, a water inlet pipe 402, a water outlet pipe 403, an arc-shaped nozzle 404 and a guide triangle plate 405; the water pump 401 is connected to the bottom of the frame 1 and is located at one end of the spiral conveying mechanism 8; one end of the water inlet pipe 402 is connected to the water pump 401, and the other end of the water inlet pipe 402 is connected to the water body inside the cleaning pool 5; one end of the water outlet pipe 403 is connected to the water pump 401, and the other end of the water outlet pipe 403 is connected to the arc-shaped nozzle 404. Specifically, in one embodiment, four arc-shaped nozzles 404 are provided and symmetrically distributed front to back, and the water outlet pipe 403 on which the arc-shaped nozzle 404 is installed is installed on the frame 1 and close to the side of the film feeding roller 3; the water inlet pipe 402 and the water outlet pipe 403 are fixed on the frame 1 in an orderly manner;

[0055] The guide triangle plate 405 is vertically placed on the top of the cleaning pool 5, and one end of the top angle of the guide triangle plate 405 is connected to the outlet pipe 403 located above, and one end of the bottom angle of the guide triangle plate 405 is connected to the side plate of the cleaning pool 5 and corresponds to the cleaning pool impurity outlet 501. The guide triangle plate 405 has water-through holes distributed in a matrix.

[0056] When the residual film mixture enters the cleaning pool 5, the straw floats on the water surface under the action of buoyancy, and moves along the guide triangular plate 405 to the impurity discharge port 501 for discharge under the action of the water jet from the arc-shaped nozzle 404. The surface of the guide triangular plate 405 is evenly distributed with circular through holes. When the straw moves toward the impurity discharge port 501 under the action of the water jet, the water will gradually flow through the through holes and will not flow out of the impurity discharge port 501 with the straw, thus saving water resources to a great extent; while the silt is deposited in the sedimentation tank 503 through the filter plate 504 and discharged by the sewage valve 502. In this process, the filter plate 504 can not only effectively block the residual film, but also reduce the influence of the disturbed water flow on the sedimentation.

[0057] like Figure 6 As shown, the hook-tooth type film washing mechanism 6 includes a hook tooth 601, a hook-tooth shaft 602, a transmission sprocket 603, a transmission main shaft 604, a connecting plate 605 and a transmission chain 606;

[0058] The hook teeth 601 are evenly distributed on the hook tooth shaft 602; both ends of the hook tooth shaft 602 are connected to the transmission chain 606, and the hook tooth shaft 602 and the connecting plate 605 are spaced and connected to the transmission chain 606; four transmission sprockets 603 are installed at both ends of the two transmission main shafts 604, and the two transmission sprockets 603 on the same side are connected together through the transmission chain 606, one of the transmission main shafts 604 is connected to the film unloading motor 9 through two sets of sprocket chain assemblies, and the film unloading motor 9 drives the transmission sprocket 603 to rotate, and then drives the hook tooth shaft 602 to move through the transmission chain 606;

[0059] The hook-tooth type membrane washing mechanism 6 is connected to the cleaning tank 5 as a whole through the transmission main shaft 604 , and the hook-tooth type membrane washing mechanism 6 is parallel to the bottom of the cleaning tank 5 .

[0060] When the hook-tooth type film washing mechanism 6 starts to work, the residual film will enter the lower water body under the action of the hook belt of the hook tooth 601. In this process, since the distance between the hook tooth shaft 602 and the connecting plate 605 is very small, the residual film will not float upward under the action of the hook belt of the hook tooth 601, and the top of the hook tooth 601 is bent at a certain angle, which can prevent the residual film from being entangled on the hook tooth 601.

[0061] like Figure 7 As shown, the film unloading mechanism includes a film unloading roller 7, a film unloading motor 9 and a first chain 10, the film unloading roller 7 includes a film unloading roller main shaft 701 and a film unloading scraper 702, the film unloading scraper 702 is circumferentially distributed on the cylindrical surface of the film unloading roller main shaft 701, and the film unloading scraper 702 is staggered with an adjacent group of hook teeth 601; the film unloading motor 9 is installed at the bottom of the right side of the frame 1, and the film unloading motor 9 is connected to the transmission wheel at the end of the film unloading roller 7 through the first chain 10, and the two ends of the film unloading roller 7 are rotatably installed on the cleaning tank 5.

[0062] The top profile of the film unloading scraper 702 is curved, and circular through holes are distributed on its surface, which can not only prevent residual film from being entangled on the film unloading scraper 702, but also reduce the influence of the disturbed water flow generated when the film unloading roller 7 rotates on the film unloading process.

[0063] like Figure 8As shown, the spiral conveying mechanism 8 includes a film inlet 801, a variable pitch auger 802, an auger cover 803, an auger motor 804, a fourth chain 805, a fifth chain 806, a film discharge impeller 807 and a film outlet 808; the auger cover 803 is installed on the right side of the cleaning tank 5, and the lower part of the auger cover 803 is provided with the film inlet 801, the film inlet 801 is built into the cleaning tank 5, and the film inlet 801 is adjacent to the film unloading roller 7; the variable pitch auger 802 is rotatably connected to the auger cover 803, and one end of the variable pitch auger 802 is connected to the cleaning tank 5. The bottom of the pool 5 is rotatably connected through a bearing, and the other end is connected to the film discharge impeller 807. The auger motor 804 is installed at the left end of the film discharge impeller 807. The auger motor 804 is connected to the film discharge impeller 807 through the fourth chain 805. The auger motor 804 is connected to the active sprocket at the other end of the variable pitch auger 802 through the fifth chain 806; circular through holes are distributed on the inner wall of the auger cover 803 and the variable pitch auger 802; the upper end of the film outlet 808 corresponds to the film discharge impeller 807, and the lower end of the film outlet 808 extends out of the cleaning pool 5.

[0064] When the spiral conveying mechanism 8 is working, the auger motor 804 drives the film discharge impeller 807 to rotate through the fourth chain 805, and drives the variable pitch auger 802 to rotate through the fifth chain 806, and the rotation speed of the film discharge impeller 807 is greater than the rotation speed of the variable pitch auger 802, which is beneficial to prevent the residual film from being blocked at the film outlet of the spiral conveying mechanism; in addition, the inner wall of the auger cover 803 and the variable pitch auger 802 are evenly distributed with circular through holes. When the residual film is conveyed, the moisture carried by the residual film will flow back to the cleaning pool 5 from the through holes under the squeezing action of the variable pitch auger, which can not only effectively reduce the use of water resources, but also squeeze out the residual film to facilitate subsequent processing.

[0065] Specifically, the film unloading roller 7 is connected to the transmission main shaft 604 on one side of the hook-tooth film washing mechanism 6 through the second chain 11; the transmission main shaft 604 on the other side of the hook-tooth film washing mechanism 6 is connected to the film feeding roller 3 through the third chain 12.

[0066] In addition, a controller is also included, and the controller can be installed in a vacant position on the frame. The auger motor 804, the film unloading motor 9, the crushing motor 14 and the blower 202 are all electrically connected to the controller, combined with existing programming technology to achieve automatic control, wherein the programming technology is known and can be implemented by those skilled in the art, and will not be repeated here.

[0067] The working process of the present invention is as follows:

[0068] When the device starts working, the crushing motor 14 drives the gear transmission assembly 204 to rotate through the transmission belt 13, and the gears in the gear transmission assembly 204 drive the crushing roller assembly 203 to rotate, and then the blower 202 is started, so that the residual film wrapped with a small amount of straw and mud enters the cleaning tank 5 from the residual film mixture outlet 205 under the action of the blower 202, while most of the straw and mud are discharged from the straw outlet 201 under the action of their own gravity, completing the preliminary separation of the residual film mixture.

[0069] At the same time, the film unloading motor 9 first drives the film unloading roller 7 to rotate through the first chain 10, and the film unloading roller 7 then drives the transmission main shaft 604 on one side of the hook-tooth film washing mechanism 6 to rotate through the second chain 11, and the transmission main shaft 604 on the other side of the hook-tooth film washing mechanism 6 then drives the film feeding roller 3 to rotate through the third chain 12. After the above transmission process, the residual film entering the cleaning pool 5 enters the lower water body under the disturbance of the film feeding roller 3, and is continuously transported to the film unloading roller 7 by the hook-tooth film washing mechanism 6, and is removed by the film unloading roller 7 to complete the cleaning of the residual film. The straw floats on the water surface under the action of buoyancy, and is discharged from the impurity discharge port 501 under the action of the water jet from the arc nozzle 404 in the impurity cleaning system 4, and the mud and sand are deposited in the sedimentation tank 503 through the filter plate 504. After accumulating for a certain period of time, it is discharged through the sewage valve 502 at the bottom of the cleaning pool 5. In this process, the distance between the hook tooth shaft 602 and the connecting plate 605 is very small, so the residual film will not float upward under the action of the hook belt of the hook tooth 601, thereby ensuring the secondary separation effect of the residual film and the straw.

[0070] Finally, after the residual film is removed by the film unloading roller 7, it enters the variable pitch auger 802 through the film inlet 801, and the auger motor 804 drives the variable pitch auger 802 to rotate through the fifth chain 806, and the auger motor 804 drives the film discharge impeller 807 to rotate through the fourth chain 805, and the rotation speed of the film discharge impeller 807 is greater than the rotation speed of the variable pitch auger 802. The inner wall of the auger cover 803 and the variable pitch auger 802 are both provided with circular through holes. When the residual film is transported, the moisture carried by the residual film will flow into the cleaning tank 5 from the through holes under the squeezing action of the variable pitch auger 802, and the residual film is transported to the film discharge impeller 807 through the variable pitch auger 802, and is discharged from the film outlet 808 under the action of the centrifugal force generated by the film discharge impeller 807.

[0071] At this point, the residual membrane mixture washing and separation operation is completed.

[0072] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0073] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A residual film mixture washing and separation device, characterized in that: The machine comprises a frame (1), on which a crushing and air-selecting system, a film feeding roller (3), a debris removal system (4), a cleaning tank (5), a hook-tooth type film washing mechanism (6), a film unloading mechanism and a screw conveying mechanism (8) are installed; The crushing and air separation system is installed on the left side of the frame (1); the film feeding roller (3) is arranged at the right end of the crushing and air separation system; the hook-tooth film washing mechanism (6) is arranged on the right side of the film feeding roller (3); the impurity removal system (4) is arranged at the upper end of the hook-tooth film washing mechanism (6); the film unloading mechanism is arranged on the right side of the hook-tooth film washing mechanism (6); and the spiral conveying mechanism (8) is arranged on the right side of the film unloading mechanism; in addition to the crushing and air separation system, the film feeding roller (3), the impurity removal system (4), the hook-tooth film washing mechanism (6), the film unloading mechanism and the spiral conveying mechanism (8) are all installed in the cleaning tank (5); The frame (1) is formed by connecting rigid rods arranged horizontally and vertically, and the frame (1) is a rectangular parallelepiped frame as a whole; The hook-tooth type film washing mechanism (6) comprises a hook tooth (601), a hook tooth shaft (602), a transmission sprocket (603), a transmission main shaft (604), a connecting plate (605) and a transmission chain (606); The hook teeth (601) are evenly distributed on the hook tooth shaft (602); both ends of the hook tooth shaft (602) are connected to the transmission chain (606), and the hook tooth shaft (602) and the connecting plate (605) are spaced and connected to the transmission chain (606); four transmission sprockets (603) are installed at both ends of the two transmission main shafts (604), and the two transmission sprockets (603) on the same side are connected together by transmission through the transmission chain (606), and one of the transmission main shafts (604) is connected to the film unloading motor (9) through two sets of sprocket chain assemblies, and the film unloading motor (9) drives the transmission sprocket (603) to rotate, and then drives the hook tooth shaft (602) to move through the transmission chain (606); The hook-tooth type membrane washing mechanism (6) is connected as a whole to the cleaning tank (5) via the transmission main shaft (604), and the hook-tooth type membrane washing mechanism (6) is parallel to the bottom of the cleaning tank (5); The film unloading mechanism comprises a film unloading roller (7), a film unloading motor (9) and a first chain (10); the film unloading roller (7) comprises a film unloading roller main shaft (701) and a film unloading scraper (702); the film unloading scraper (702) is circumferentially distributed on the cylindrical surface of the film unloading roller main shaft (701), and the film unloading scraper (702) and a group of hook teeth (601) on the right are arranged in a staggered manner; the film unloading motor (9) is installed at the bottom of the right side of the frame (1); the film unloading motor (9) is connected to the transmission wheel at the end of the film unloading roller (7) through the first chain (10); and the two ends of the film unloading roller (7) are rotatably installed on the cleaning tank (5); During operation, an initial residual film mixture is added to the pulverizing and air separation system, and after preliminary air separation, it is separated into a mixture of straw, soil and residual film. The straw and soil with a higher specific gravity are discharged through the pulverizing and air separation system. The separated residual film is blown into the cleaning tank (5) by the pulverizing and air separation system for water washing. After the straw and soil wrapped in the residual film are separated again, the straw floats on the water and is discharged from the top of the cleaning tank (5), and the soil is discharged from the bottom of the cleaning tank (5) after settling by its own gravity for a period of time; The residual film enters the lower water body of the cleaning pool (5) under the disturbance action of the film feeding roller (3), and is continuously transported to the film unloading roller (7) in the film unloading mechanism through the hook-tooth type film washing mechanism (6), and the residual film after cleaning is removed, and the removed residual film is discharged through the screw conveying mechanism (8).

2. A residual film mixture washing and separation device according to claim 1, characterized in that: The pulverizing and air separation system comprises a pulverizing and air separation mechanism (2), a transmission belt (13) and a pulverizing motor (14); The pulverizing and air separation mechanism (2) comprises a straw outlet (201), a blower (202), a pulverizing roller assembly (203), a gear transmission assembly (204), a residual film mixture outlet (205) and a pulverizing box (206); the straw outlet (201) is arranged at the lower left side of the pulverizing box (206); the residual film mixture outlet (205) is arranged at the right side of the pulverizing box (206); the residual film mixture outlet (205) is higher than the straw outlet (201); the straw outlet (201 ) are arranged above the two blowers (202), the air outlet of the blower (202) is flush with the film inlet end of the residual film mixture outlet (205), the residual film mixture outlet (205) is connected to the cleaning pool (5), the crushing roller assembly (203) is installed inside the crushing box (206) and corresponds to the feed opening at the upper end, the crushing roller assembly (203) includes two crushing rollers with opposite rotation directions, and the ends of the crushing rollers are transmission-connected via the gear transmission assembly (204); The pulverizing motor (14) is mounted on the frame (1), and the pulverizing motor (14) is connected to the gear transmission assembly (204) via the transmission belt (13).

3. A residual film mixture washing and separation device according to claim 2, characterized in that: The film feeding roller (3) comprises a film feeding roller main shaft (301) and film feeding teeth (302), and the film feeding teeth (302) are circumferentially distributed on the cylindrical surface of the film feeding roller main shaft (301); the two ends of the film feeding roller (3) are rotatably connected in the cleaning tank (5), and the position of the film feeding roller (3) corresponds to the residual film mixture outlet (205).

4. The residual film mixture washing and separation device according to claim 1, characterized in that: The cleaning tank (5) comprises a debris discharge port (501), a sewage valve (502), a sedimentation tank (503) and a filter plate (504); the debris discharge port (501) is symmetrically arranged in the cleaning tank (5) and is located on the top edge of the cleaning tank (5); the filter plate (504) is located at the bottom of the cleaning tank (5), and circular through holes are distributed on the filter plate (504); the sedimentation tank (503) is located below the filter plate (504), and two sewage valves (502) are connected to the left and right ends of the bottom surface of the sedimentation tank (503).

5. A residual membrane mixture washing and separation device according to claim 4, characterized in that: The debris cleaning system (4) comprises a water pump (401), a water inlet pipe (402), a water outlet pipe (403), an arc-shaped nozzle (404) and a guide triangle plate (405); the water pump (401) is connected to the bottom of the frame (1) and is located at one end of the spiral conveying mechanism (8); one end of the water inlet pipe (402) is connected to the water pump (401), and the other end of the water inlet pipe (402) is connected to the water body inside the cleaning pool (5); one end of the water outlet pipe (403) is connected to the water pump (401), and the other end of the water outlet pipe (403) is connected to the arc-shaped nozzle (404); the water outlet pipe (403) on which the arc-shaped nozzle (404) is installed is installed on the frame (1) and close to the film feeding roller (3); the water inlet pipe (402) and the water outlet pipe (403) are fixed on the frame (1) in an orderly manner; The guide triangle plate (405) is vertically placed on the top of the cleaning pool (5); one end of the top corner of the guide triangle plate (405) is connected to a water outlet pipe (403) located above; one end of the bottom corner of the guide triangle plate (405) is connected to the side plate of the cleaning pool (5) and corresponds to the impurity discharge port (501); and water through holes are distributed in a matrix on the guide triangle plate (405).

6. The residual film mixture washing and separation device according to claim 1, characterized in that: The spiral conveying mechanism (8) comprises a film inlet (801), a variable pitch auger (802), an auger cover (803), an auger motor (804), a fourth chain (805), a fifth chain (806), a film discharge impeller (807) and a film outlet (808); the auger cover (803) is installed on the right side of the cleaning tank (5), the lower part of the auger cover (803) is provided with the film inlet (801), the film inlet (801) is built in the cleaning tank (5), and the film inlet (801) is adjacent to the film unloading roller (7); the variable pitch auger (802) is rotatably connected to the auger cover (803), and one end of the variable pitch auger (802) is connected to the film discharge roller (7). The bottom of the cleaning tank (5) is rotatably connected via a bearing, and the other end is connected to the film discharge impeller (807); the auger motor (804) is installed at the left end of the film discharge impeller (807); the auger motor (804) is connected to the film discharge impeller (807) via the fourth chain (805); the auger motor (804) is connected to the active sprocket at the other end of the variable pitch auger (802) via the fifth chain (806); circular through holes are distributed on the inner wall of the auger cover (803) and the variable pitch auger (802); the upper end of the film outlet (808) corresponds to the film discharge impeller (807), and the lower end of the film outlet (808) extends out of the cleaning tank (5).

7. The residual membrane mixture washing and separation device according to claim 1, characterized in that: The film unloading roller (7) is connected to the transmission main shaft (604) on one side of the hook-tooth film washing mechanism (6) via a second chain (11); the transmission main shaft (604) on the other side of the hook-tooth film washing mechanism (6) is connected to the film feeding roller (3) via a third chain (12).

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