CN110435043B

CN110435043B - Agricultural film recycling and granulating production line and method

Info

Publication number: CN110435043B
Application number: CN201910625688.5A
Authority: CN
Inventors: 金银刚
Original assignee: Linyi Hongtai Plastic Industry Co ltd
Current assignee: Linyi Hongtai Plastic Industry Co ltd
Priority date: 2019-07-11
Filing date: 2019-07-11
Publication date: 2021-08-06
Anticipated expiration: 2039-07-11
Also published as: CN110435043A

Abstract

The invention relates to an agricultural film recycling and granulating production line and a method, which comprises a cutting device, a first feeding device, a crushing device, a second feeding device, a cleaning device, a third feeding device, a drying device, a granulating machine and a blanking device which are sequentially arranged along a set direction, wherein the cutting device is used for cutting bundled plastic films into strip-shaped plastic strips; the first feeding device is used for conveying the plastic strips obtained by the cutting device into the crushing device; the crushing device is used for further crushing the plastic strips into plastic sheets; the second feeding device is used for conveying the plastic sheets obtained in the crushing device to the cleaning device; the cleaning device is used for cleaning the plastic sheets; the third feeding device is used for conveying the cleaned plastic sheets to the drying device; the drying device is used for drying the cleaned plastic sheets and conveying the plastic sheets to the granulator. The invention can improve the efficiency of agricultural film recycling and avoid the waste agricultural film from polluting soil.

Description

Agricultural film recycling and granulating production line and method

Technical Field

The invention belongs to the technical field of plastic film recovery, and particularly relates to an agricultural film recovery granulation production line and method.

Background

The agricultural plastic film comprises a ground covering film and a covering film for a greenhouse shed ceiling, and when the agricultural film covers the ground or the greenhouse shed, the space between the agricultural film and soil can be ensured to have a set temperature, and the temperature and the humidity of the soil can be kept.

The plastic film is a non-degradable material, and the waste plastic film in the farmland pollutes the soil and hinders the farming. Therefore, the recycling and reproduction of the plastic film after use become the treatment trend of the existing waste agricultural film.

The inventor knows that the existing production line for recycling the agricultural film has the following defects:

1) there is no equipment for automatically cutting agricultural film, and the bundled agricultural film needs to be manually cut into long strips, and then the long strips are sent into crushing equipment, so that the operation is inconvenient.

2) In the existing equipment for completely crushing the agricultural film into the plastic sheets, the crushing equipment does not have the effect of primary filtration, impurities in the plastic sheets are completely mixed in the plastic sheets, and the impurities are removed by cleaning of the cleaning equipment, so that the burden of the cleaning equipment is caused;

3) the feeding device does not have the function of adjusting the feeding height of the feeding device, so that when the feeding device is used in cooperation with cleaning equipment, crushing equipment or other equipment, the height of the feeding device cannot be conveniently adjusted to adapt to equipment with different feeding port heights;

4) the existing production line does not have a special blanking device, and plastic particles produced by a granulator can not be cooled and dehumidified.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide an agricultural film recycling and granulating production line and method, which can improve the efficiency of recycling an agricultural plastic film to produce plastic particles and reduce the labor burden.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides an agricultural film retrieves granulation production line, includes cutting device, first loading attachment, breaker, second loading attachment, belt cleaning device, third loading attachment, drying device, granulator and unloader that arranges in proper order along setting for the direction.

The cutting device is used for cutting the bundled plastic films into long plastic strips; the first feeding device is used for conveying the plastic strips obtained by the cutting device into the crushing device; the crushing device is used for further crushing the plastic strips into plastic sheets; the second feeding device is used for conveying the plastic sheets obtained in the crushing device to the cleaning device; the cleaning device is used for cleaning the plastic sheets so as to separate the plastic sheets from impurities;

the third feeding device is used for conveying the cleaned plastic sheets to the drying device; the drying device is used for drying the cleaned plastic sheets and conveying the dried plastic sheets to the granulator; the pelletizer is capable of receiving the dried plastic pieces and producing them into plastic pellets; the blanking device is used for receiving the plastic particles discharged from the granulator, and cooling and dehumidifying the plastic particles.

Further, the cutting device comprises a cutting mechanism, a first conveying mechanism and a second conveying mechanism are respectively arranged on two sides of the cutting mechanism, the first conveying mechanism is used for conveying the agricultural film into the cutting mechanism, and the second conveying mechanism is used for sending out the agricultural film processed by the cutting mechanism;

the cutting mechanism comprises a supporting plate, wherein an inverted U-shaped first support is arranged on the upper surface of the supporting plate, the first support stretches across the supporting plate, a hydraulic cylinder is installed in the supporting frame, the cylinder body of the hydraulic cylinder is fixedly connected with the supporting frame, a piston rod of the hydraulic cylinder is vertically arranged downwards, and the piston rod is fixedly connected with the guillotine.

Adopt the combination of first support, pneumatic cylinder, hand hay cutter and backup pad, utilize the intermittent type nature of piston rod in the pneumatic cylinder flexible cutting off that realizes bundle plastic film, avoid the manual cutting plastic film of workman, realized the automatic cutting of plastic film.

The first conveying device and the second conveying device are matched with the cutting device for use, so that the agricultural film is cut off to form assembly line type operation, and assembly line type feeding, cutting and discharging of the agricultural film are realized.

Further, the first feeding mechanism comprises a mounting frame, a first support frame and a second support frame which are vertically arranged, and the first support frame and the second support frame are supported through the ground;

two ends of the mounting rack are respectively supported by a first support frame and a second support frame, the top height of the first support frame is lower than that of the second support frame, and the mounting rack is arranged in an inclined manner;

a first carrier roller is arranged at one end, close to the first support frame, of the mounting frame, a second carrier roller is arranged at one end, close to the second support frame, of the mounting frame, a conveying belt is sleeved outside the first carrier roller and the second carrier roller, the first carrier roller is driven by an external driving device, and the first carrier roller can drive the conveying belt to rotate along a set direction;

one end of the conveying belt, provided with the first carrier roller, is close to the second conveying mechanism, and the plastic strips in the second conveying mechanism can be transferred to the conveying belt.

Furthermore, an outer support is arranged at one end, close to the first support frame, of the mounting frame, the outer support stretches across the mounting frame, a swinging plate is rotatably arranged in the outer support, the swinging plate is rotatably connected with the top end of the outer support, a horizontal support rod is arranged at the top end of the outer support, and the support rod extends out towards the direction of the first carrier roller;

a spring is connected between the supporting rod and the bottom of the swinging plate, a ferromagnet is arranged at the bottom of the swinging plate, and an electromagnet is arranged at the bottom of the outer support.

By adopting the structure of the swing plate, the swing plate can change the distance between the bottom end surface of the swing plate and the conveying belt in the swinging process, and when the bottom end surface of the swing plate is in contact with the outer surface of the conveying belt, the plastic film can be blocked in the transportation process under the condition that the feeding device does not stop, so that the intermittent feeding purpose is realized.

Further, the crushing device comprises two first squeezing rollers and a second squeezing roller which are arranged in the inner cavity of the shell and have mutually parallel central axes;

the two sides of the second extrusion roller are respectively provided with one first extrusion roller, the second extrusion roller is positioned below the first extrusion roller, the outer circle side surfaces of the first extrusion roller and the second extrusion roller are respectively provided with crushing teeth, and the crushing teeth of the first extrusion roller and the second extrusion roller are matched with each other;

the second extrusion roller is fixedly connected with the shell, the first extrusion roller can rotate along the axis of the first extrusion roller under the driving of an external driving device so as to realize the relative rotation of the first extrusion roller and the second extrusion roller, and the crushing teeth can extrude materials in the relative rotation process so as to realize the crushing of the materials;

be equipped with the elasticity filter screen that the slope was arranged in the inner chamber of shell, the inner chamber of shell falls into the broken space on upper portion and the filtration space of lower part with the elasticity filter screen, the shell on elasticity filter screen upper portion is equipped with the discharge gate, the bottom of shell is equipped with the discharge port, the top of shell is equipped with first feed inlet.

Set up the elasticity filter screen in the inner chamber of breaker shell, the impurity that the elasticity filter screen can filter and be less than the settlement particle diameter for impurity such as soil particle separates with the plastic sheet.

Furthermore, the drying device comprises a filter cylinder and two third supports, a plurality of filter holes are uniformly distributed on the outer circle side surface of the filter cylinder, and two ends of the filter cylinder are fixedly connected with one third support respectively;

a rotating shaft with the same rotating axis as the rotating shaft is arranged in the filter cylinder, two ends of the rotating shaft penetrate through two end faces of the filter cylinder and then are respectively connected with the adjacent third supports in a rotating mode, one end of the rotating shaft penetrates through the third supports and is connected with the rotary driving device, and stirring teeth are uniformly distributed on the outer side face of the rotating shaft;

one end of the excircle side surface of the filter cylinder is provided with a feed inlet, the other end of the excircle side surface of the filter cylinder is provided with a first discharge outlet, and the feed inlet and the first discharge outlet are both arranged at the upper part of the filter cylinder;

an air hole is formed in one end face, close to the feeding hole, of the filter cylinder and communicated with an outlet of the fan.

The mode that a filter drum is fixed, and the rotating shaft and the stirring teeth drive the plastic sheet for agricultural film to rotate for spin-drying is adopted, so that the situation that the plastic sheet for agricultural film is attached to the inner wall of the filter drum for a long time to block the filter holes can be avoided while the plastic sheet for agricultural film is spin-dried in a centrifugal mode. By adopting the combination of the air holes and the fan, the dried plastic sheets of the agricultural film can be blown by the air flow generated by the fan, so that the plastic sheets of the agricultural film can be directionally moved in the filter cylinder and finally discharged from the first discharge hole, and the discharge work of the dried plastic sheets of the agricultural film is facilitated.

Further, the blanking device comprises a shell, the shell is of a vertically-arranged cylindrical structure, a bottom plate is arranged at the bottom of the shell, a plurality of air holes are uniformly distributed in the bottom plate, and the lower part of the shell is supported by a fourth support;

a gas injection branch pipe is arranged below the bottom plate, the gas hole is communicated with the gas injection branch pipe, the gas injection branch pipe is communicated with a gas injection main pipe, the gas injection main pipe is communicated with an external gas supply device, and the external gas supply device can provide gas flow;

one side of the shell is provided with a second discharge hole, and a second baffle capable of being opened and closed is arranged at the second discharge hole.

The mode that sets up the gas pocket on the bottom plate is adopted, can follow the gas pocket blowout with the air current that outside air feeder provided, and the gas pocket gets into from the bottom of casing inner chamber, and then the air current can pass the plastic granules in the casing inner chamber to finally discharge from the casing top, the air current and the heat exchange of plastic granules are in order to reduce the temperature of plastic granules, also can take away the moisture on plastic granules surface.

Further, the granulator comprises a plastic strip extruder and a plastic strip cutting device, wherein the plastic strip extruder is used for producing the dried plastic film into plastic strips and discharging the plastic strips, and the plastic strip cutting device is used for cutting the discharged plastic strips into plastic particles.

An agricultural film recycling and granulating production method utilizes the agricultural film recycling and granulating production line, and comprises the following steps:

step 1, recovering, bundling and collecting the agricultural film to a production field, placing the bundled agricultural film into a cutting device and cutting the bundled agricultural film into long strip-shaped plastic strips;

step 2, conveying the plastic strips obtained by the cutting device into a crushing device through a first feeding device;

step 3, crushing the plastic strips into plastic sheets by using a crushing device;

step 4, conveying the plastic sheets obtained in the crushing device to a cleaning device by using a second feeding device;

step 5, cleaning the plastic sheet by using a cleaning device to separate the plastic sheet from impurities;

step 6, conveying the cleaned plastic sheets to a drying device by using a third feeding device;

step 7, drying the cleaned plastic sheets by using a drying device and conveying the dried plastic sheets to a granulator;

step 8, the granulator receives the dried plastic sheet and produces the plastic sheet into plastic granules;

and 9, receiving the plastic particles discharged from the granulator by a discharging device, and cooling and dehumidifying the plastic particles.

And 4, in the process of crushing the plastic strips by using the crushing device, separating impurities with the particle size smaller than the set particle size from the plastic sheets by using the elastic filter screen.

The invention has the beneficial effects that:

1) the cutting device adopts the combination of the first support, the hydraulic cylinder, the hand hay cutter and the supporting plate, utilizes the intermittent type nature of the piston rod in the hydraulic cylinder to stretch out and draw back and realize the cutting off of the bundle of agricultural films, avoids the manual cutting of workers to the agricultural films, and realizes the automatic cutting of the agricultural films. The first conveying device and the second conveying device are matched with the cutting device for use, so that the agricultural film is cut off to form assembly line type operation, and assembly line type feeding, cutting and discharging of the agricultural film are realized.

2) First material feeding unit adopts the swing plate structure, and the swing plate can change the distance between self bottom face and the conveyer belt at the wobbling in-process, and when the bottom face of swing plate and the surface contact of conveyer belt, can realize blocking of plastic film transportation under the circumstances that material feeding unit does not shut down, realizes the purpose of intermittent type nature pay-off.

3) Set up the elasticity filter screen in the inner chamber of breaker shell, the impurity that the elasticity filter screen can filter and be less than the settlement particle diameter for impurity such as soil particle separates with the plastic sheet.

4) The drying device adopts a mode of filtering a cylinder for fixation, the rotating shaft and the stirring teeth drive the plastic sheets of the agricultural film to rotate for spin-drying, and when the plastic sheets of the agricultural film are spun-dried in a centrifugal mode, the situation that the plastic sheets of the agricultural film are attached to the inner wall of the filtering cylinder for a long time to block the filtering holes can be avoided. By adopting the combination of the air holes and the fan, the dried plastic sheets of the agricultural film can be blown by the air flow generated by the fan, so that the plastic sheets of the agricultural film can be directionally moved in the filter cylinder and finally discharged from the first discharge hole, and the discharge work of the dried plastic sheets of the agricultural film is facilitated.

5) The blanking device adopts a mode that the air holes are formed in the bottom plate, air flow provided by the external air supply device can be sprayed out along the air holes, the air holes enter from the bottom end of the inner cavity of the shell, then the air flow can penetrate through plastic particles in the inner cavity of the shell and is finally discharged from the upper side of the shell, the air flow and the plastic particles exchange heat to reduce the temperature of the plastic particles, and moisture on the surfaces of the plastic particles can be taken away.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

FIG. 1 is a front view of the overall structure in an embodiment of the present invention;

FIG. 2 is a front view of a cutting device in an embodiment of the present invention;

FIG. 3 is a left side view showing a part of the structure of the cutting apparatus according to the embodiment of the present invention;

FIG. 4 is a top view of a cutting device in an embodiment of the present invention;

FIG. 5 is a top view of another alternative form of the severing device of an embodiment of the present invention;

FIG. 6 is a front view of a loading device in an embodiment of the present invention;

FIG. 7 is a front view of a part of the structure of a loading device in the embodiment of the invention;

FIG. 8 is a top view of a mounting bracket according to an embodiment of the present invention;

FIG. 9 is an enlarged view of the structure of portion A of FIG. 6;

FIG. 10 is a schematic structural diagram of an external frame according to an embodiment of the present invention;

fig. 11 is a sectional view in front view of a crushing apparatus according to an embodiment of the present invention;

FIG. 12 is a top cross-sectional view of a crushing apparatus according to an embodiment of the invention

FIG. 13 is a front sectional view of a drying apparatus according to an embodiment of the present invention;

FIG. 14 is a schematic view of a filter cartridge and a third bracket according to an embodiment of the present invention;

FIG. 15 is a schematic view of the structure of the collar and scraper in the embodiment of the present invention;

FIG. 16 is a schematic structural diagram of a first baffle plate in an embodiment of the present invention;

FIG. 17 is a front view of a blanking device in an embodiment of the present invention;

FIG. 18 is a top view of a blanking device in an embodiment of the present disclosure;

fig. 19 is a top view of an agitation plate in an embodiment of the present invention.

In the figure: 1. a cutting device; 2. a first feeding device; 3. a crushing device; 4. a third feeding device; 5. a drying device; 6. a delivery pipe; 7. a plastic strip extruder; 8. a plastic strip cutting device; 9. a blanking device; 10. a second feeding device; 11. a cleaning device;

101. a first bracket; 102. a hydraulic cylinder; 103. a piston rod; 104. a connecting plate; 105. a guillotine; 106. a support plate; 107. a through hole; 109. a driving wheel; 110. a first conveying mechanism; 111. a protrusion; 112. a driven wheel; 113. a mounting seat; 114. a second conveying mechanism;

201. a conveyor belt; 202. a flexible baffle; 203. a ferromagnetic body; 204. a spring; 205. a swing plate; 206. a support bar; 207. an electromagnet; 208. a third carrier roller; 209. a fourth carrier roller; 210. a second carrier roller; 211. an extension bar; 212. a first locking bolt; 213. a rod sleeve; 214. an outer support; 214A, a vertical rod; 214B, horizontal bar; 215. a first support frame; 216. a first carrier roller; 217. a mounting frame; 217A, a first frame body; 217B, a second frame body; 217C, a third frame body.

301. An end cap; 302. a first squeeze roll; 303. crushing teeth; 304. a first feed port; 305. a housing; 306. a pulley; 307. a bearing seat; 308. a second squeeze roll; 309. a discharge pipe; 310. an inclined side wall; 311. an elastic filter screen; 312. a vibrator; 313. a second bracket; 314. a material collecting box; 315. an outlet port;

501. a fan; 502. a gas conduit; 503. a third support; 504. a branch air pipe; 505. a feed inlet; 506. a first baffle plate; 507. a filter cartridge; 508. filtering holes; 509. a squeegee; 509A, a gear ring; 509B, a brush; 510. a first discharge port; 511. a first timing pulley; 512. a synchronous belt; 513. a first motor; 514. a second timing pulley; 515. a second motor; 516. a gear; 517. a water outlet; 518. an article receiving box; 519. a rotating shaft; 520. stirring teeth; 521. a collar;

901. a housing; 902. a first support bar; 903. a motor; 904. a second support bar; 905. a limiting sleeve; 906. a second locking bolt; 907. a second baffle; 908. a second discharge port; 909. a discharge plate; 910. a support; 911. a main air injection pipe; 912. a gas injection branch pipe; 913. stirring the plate; 913A, mounting holes; 914. and (4) air holes.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

For convenience of description, the words "up, down, left and right" when appearing in the present invention merely indicate correspondence with the up, down, left and right directions of the drawings themselves, and are not limiting of structure, but merely for convenience of description and simplified description, and do not indicate or imply that the referenced apparatus or component must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting of the present invention.

In a typical embodiment of the present invention, as shown in fig. 1, an agricultural film recycling and granulating production line includes a cutting device 1, a first feeding device 2, a crushing device 3, a second feeding device 10, a cleaning device 11, a third feeding device 4, a drying device 5, a granulator and a blanking device 9, which are sequentially arranged along a set direction.

The cutting device 1 is used for cutting a bundle of plastic films into long plastic strips; the first feeding device 2 is used for conveying the plastic strips obtained by the cutting device 1 to the crushing device 3; the crushing device 3 is used for further crushing the plastic strips into plastic pieces; the second feeding device 10 is used for conveying the plastic sheets obtained in the crushing device 3 to the cleaning device 11; the cleaning device 11 is used for cleaning the plastic sheets so that the plastic sheets are separated from impurities;

the third feeding device 4 is used for conveying the cleaned plastic sheets to the drying device 5; the drying device 5 is used for drying the cleaned plastic sheets and conveying the dried plastic sheets to a granulator; the pelletizer is capable of receiving the dried plastic pieces and producing them into plastic pellets; the blanking device 9 is used for receiving the plastic particles discharged from the granulator, cooling and dehumidifying the plastic particles.

As shown in fig. 2-5, the cutting device 1 includes a cutting mechanism, a first conveying mechanism 110 and a second conveying mechanism 114 are respectively disposed on two sides of the cutting mechanism, the first conveying mechanism 110 is used for conveying the agricultural film into the cutting mechanism, and the second conveying mechanism 114 is used for conveying the agricultural film processed by the cutting mechanism out;

the cutting mechanism comprises a supporting plate 106, wherein an inverted U-shaped first support 101 is arranged on the upper surface of the supporting plate 106, the first support 101 stretches across the supporting plate 106, specifically, the first support 101 comprises two vertical sections and a horizontal section, and the two vertical sections are respectively perpendicular to the supporting plate 106.

A hydraulic cylinder 102 is installed in the supporting frame, a cylinder body of the hydraulic cylinder 102 is fixedly connected with the supporting frame, a piston rod 103 of the hydraulic cylinder 102 is vertically arranged downwards, and the piston rod 103 is fixedly connected with a guillotine 105.

Specifically, the end of the cylinder body in the hydraulic cylinder 102 is fixedly connected with the horizontal section of the support frame, and the fixing mode includes welding and bolt connection, which is not limited herein.

Further, a connecting plate 104 is fixedly arranged on the upper end face of the guillotine 105 and the lower end face of the piston rod 103 respectively, and the two connecting plates 104 are fixedly connected through a fastener.

In particular, the fastener may be a bolt, a screw, or other structures, and is not limited herein.

Further, the hydraulic control system further comprises a PLC control system, and the PLC control system is used for controlling the hydraulic cylinder 102 to complete one expansion at set time intervals.

Further, the hydraulic cylinder 102 is driven by a hydraulic pump, the hydraulic pump is communicated with an oil tank, the hydraulic cylinder 102 is communicated with the oil tank, and the hydraulic cylinder 102, the hydraulic pump and the oil tank form a hydraulic circuit.

Specifically, the PLC control system controls the extension and retraction of the hydraulic cylinder 102 by controlling the rotation of the hydraulic pump, which can be set by a person skilled in the art and should not be considered as being clear.

Further, first conveying mechanism 110 and second conveying mechanism 114 include action wheel 109 and follow driving wheel 112 respectively, pass through the belt between action wheel 109 and the follow driving wheel 112 and be connected, the surface equipartition of belt is equipped with arch 111.

The bottom ends of the driving wheel 109 and the driven wheel 112 are respectively installed on the ground through an installation seat 113, and the driving wheel 109 is driven by a driving device.

Specifically, the driving device may be a motor, a rotating shaft 519 is installed in each of the driving wheel 109 and the driven wheel 112, and the driving wheel 109 and the driven wheel 112 can rotate along the rotating shaft 519. The output shaft of the motor is fixedly connected with the rotating shaft 519 of the driving wheel 109 through a coupler, and the driving wheel 109 can be driven to rotate through the rotation of the motor, so that the belt rotates.

Further, protruding 111 is the strip structure of cuboid, protruding 111's extending direction is perpendicular with the transmission direction of belt.

Specifically, the protrusions 111 can increase the friction force between the belt and the agricultural film, and transportation of the agricultural film is facilitated.

The working principle is as follows: when the agricultural film cutting machine is used for cutting, the hydraulic cylinder 102 and the motor are started by the PLC control system, a worker places the bundled agricultural films on the belt of the first conveying mechanism 110, the first conveying mechanism 110 conveys the agricultural films to the position below the chopper 105 in sequence, and the bundled agricultural films are cut into multiple parts under the up-and-down reciprocating motion of the chopper 105. Then, the cut agricultural film is driven by the belt of the second conveying mechanism 114 to be away from the fodder chopper 105, so as to realize the operation of blanking.

In another structural form of the cutting structure, a plurality of rows of through holes 107 penetrating through the belt are formed in the belt, and a row of through holes 107 is uniformly distributed between every two adjacent protrusions 111. When the bundle of agricultural films moves above the belt of the first conveying mechanism 110 or the cut agricultural films move above the second conveying mechanism 114, the soil remaining in the agricultural films can fall from the through holes 107, and the soil particles are separated by the agricultural films.

As shown in fig. 6 to 10, the first feeding device 2 includes a mounting frame 217, a first support frame 215 and a second support frame which are vertically arranged, and the first support frame 215 and the second support frame are supported by the ground.

Two ends of the mounting frame 217 are respectively supported by a first support frame 215 and a second support frame, the top height of the first support frame 215 is lower than that of the second support frame, and the mounting frame 217 is arranged in an inclined manner.

One end of the mounting frame 217 close to the first support frame 215 is provided with a first carrier roller 216, one end of the mounting frame 217 close to the second support frame is provided with a second carrier roller 210, the conveyor belt 201 is sleeved outside the first carrier roller 216 and the second carrier roller 210, the first carrier roller 216 is driven by an external driving device, and the first carrier roller 216 can drive the conveyor belt 201 to rotate along a set direction.

Specifically, two ends of the mounting frame 217 are respectively provided with a rotating shaft 519, the rotating shaft 519 is used for mounting the first carrier roller 216 or the second carrier roller 210, the rotating shaft 519 is rotatably connected with the mounting frame 217 through a bearing piece, the rotating shaft 519 is fixedly connected with the first carrier roller 216 or the second carrier roller 210, and the first carrier roller 216 and the second carrier roller 210 are sleeved outside the corresponding rotating shaft 519.

An outer support 214 is arranged at one end of the mounting rack 217 close to the first support roller 215, the outer support 214 is arranged across the mounting rack 217, a swing plate 205 is rotatably arranged in the outer support 214, the swing plate 205 is rotatably connected with the top end of the outer support 214, a horizontal support rod 206 is arranged at the top end of the outer support 214, and the support rod 206 extends out towards the direction of the first support roller 216.

A spring 204 is connected between the support rod 206 and the bottom of the swing plate 205, a ferromagnetic body 203 is arranged at the bottom of the swing plate 205, and an electromagnet 207 is arranged at the bottom of the outer bracket 214.

Further, the number of the ferromagnets 203 is two, the two ferromagnets 203 are respectively disposed on two sides of the bottom of the swing plate 205, the outer bracket 214 includes a horizontal rod 214B, two ends of the horizontal rod 214B are mounted with vertical rods 214A, and the lower portions of the vertical rods 214A are respectively provided with one electromagnet 207.

Further, the outer surface equipartition of conveyer belt 201 is equipped with flexible baffle 202, forms the transport space between two adjacent flexible baffles 202, the transport space is used for storing the plastic film.

Specifically, the flexible flapper 202 can block the plastic film from falling down during upward movement with the conveyor belt 201. When the swing plate 205 contacts the upper surface of the conveyor belt 201, the flexible baffle 202 is pressed and deformed, and the flexible baffle 202 does not block the relative movement between the swing plate 205 and the conveyor belt 201.

Further, the mounting frame 217 includes a first frame body 217A, a second frame body 217B and a third frame body which are rotatably connected in sequence.

The first frame 217A and the third frame 217C are both horizontally disposed, the height of the first frame 217A in the vertical direction is lower than that of the third frame 217C, and the second frame 217B is obliquely disposed.

The connecting position of the first frame body 217A and the second frame body 217B is rotatably provided with a third carrier roller 208, the connecting position of the second frame body 217B and the third frame body 217C is rotatably provided with a fourth carrier roller 209, and the third carrier roller 208 and the fourth carrier roller 209 are used for supporting the conveying belt 201.

The top end of the first support frame 215 is fixedly connected with the first frame body 217A, and the top end of the second support frame is fixedly connected with the third frame body 217C.

Further, the second frame body 217B comprises a rod sleeve 213, an extension rod 211 is sleeved in the rod sleeve 213, the top end of the extension rod 211 is fixedly connected with the third frame body 217C, a first locking bolt 212 is arranged at the upper end of the rod sleeve 213, and the first locking bolt 212 penetrates through the side wall of the rod sleeve 213 and then contacts with the side wall of the extension rod 211.

Further, the number of the rod cover 213 and the protruding rod 211 is two.

Further, the first frame body 217A and the second frame body 217B are rotatably connected through a first pin shaft, the second frame body 217B and the third frame body 217C are rotatably connected through a second pin shaft, a third carrier roller 208 is installed on the outer circumferential surface of the first pin shaft, and a fourth carrier roller 209 is installed on the outer circumferential surface of the second pin shaft.

Specifically, the first pin shaft and the second pin shaft are both arranged in the mounting frame 217 through a bearing piece, a third carrier roller 208 is sleeved outside the first pin shaft, a fourth carrier roller 209 is sleeved outside the second pin shaft, the first pin shaft is fixedly connected with the third carrier roller 208, and the second pin shaft is fixedly connected with the fourth carrier roller 209.

Further, the external driving device comprises a motor 903 fixedly connected with the first frame body 217A, and an output shaft of the motor 903 is fixedly connected with a rotating shaft 519 in the first carrier roller 216.

When the second feeding device 10 is used, the plastic film conveyed from the second conveying structure of the cutting device 1 is conveyed onto the conveyor belt 201 above the first rack 217A, the conveyor belt 201 is driven by the first carrier roller 216 to rotate in the set direction, and the plastic film is conveyed obliquely upward to the feed port 505 of the cleaning device 11 under the driving of the conveyor belt 201.

When the number of the plastic films in the crushing device 3 meets the set requirement, in order to avoid the continuous feeding of the crushing device 3, the electromagnet is electrified, the electromagnet 207 attracts the ferromagnetic body 203, the swinging plate 205 swings until the bottom end of the swinging plate 205 is in contact with the upper surface of the conveying belt 201, and the plastic films are blocked at the swinging plate 205 and cannot continuously feed along the conveying belt 201; when the feeding is needed again, the electromagnet 207 is powered off, and the swinging plate 205 is reset under the action of the spring 204.

When the height of the third frame body 217C needs to be changed to adapt to the height of a feeding port of the crushing and washing device, the extending height of the extending rod 211 extending along the rod sleeve 213 is adjusted, then the first locking bolt 212 is screwed to realize fixation, when the height of the third frame body 217C is changed, the inclination angle of the second frame body 217B and the horizontal plane is changed, and the distance between the first frame body 217A and the third frame body 217C is changed.

As shown in fig. 11 to 12, the crushing apparatus 3 includes two first squeeze rollers 302 and one second squeeze roller 308 which are disposed in an inner cavity of a housing 305 with central axes thereof being parallel to each other;

the two sides of the second extrusion roller 308 are respectively provided with one first extrusion roller 302, the second extrusion roller 308 is positioned below the first extrusion roller 302, the outer circle side surfaces of the first extrusion roller 302 and the second extrusion roller 308 are both provided with crushing teeth 303, and the crushing teeth 303 of the first extrusion roller 302 and the second extrusion roller 308 are matched with each other;

the second squeezing roller 308 is fixedly connected with the housing 305, the first squeezing roller 302 can rotate along the axis thereof under the driving of an external driving device so as to realize the relative rotation of the first squeezing roller 302 and the second squeezing roller 308, and the crushing teeth 303 can extrude materials in the relative rotation process so as to realize the crushing of the materials;

specifically, the second pressing roller 308 may be fixed in the inner cavity of the housing 305 by welding or bolting, and other fixing methods may be adopted, which can be set by those skilled in the art, and the present invention is not limited thereto.

Specifically, two ends of the first squeeze roller 302 may be rotatably connected to the housing 305 through a bearing housing 307, the driving device may be a motor 903, one end of the first squeeze roller 302 is mounted in the bearing housing 307 through an end cover 301, the other end of the first squeeze roller 302 penetrates through the bearing housing 307 and then is connected to a pulley 306, the pulley 306 is also fixed to an output shaft of the motor 903, and the two pulleys 306 are connected to each other through a belt.

Be equipped with the elasticity filter screen 311 that the slope was arranged in the inner chamber of shell 305, the crushing space on upper portion and the filter space of lower part are divided into with the inner chamber of shell 305 to elasticity filter screen 311, shell 305 on elasticity filter screen 311 upper portion is equipped with the discharge gate, the bottom of shell 305 is equipped with discharge port 315, the top of shell 305 is equipped with first feed inlet 505304.

Further, the first pressing roll 302 and the second pressing roll 308 are arranged in a V shape in the inner cavity of the housing 305.

Further, the crushing teeth 303 of the first press roll 302 can in turn during rotation protrude into the space between two crushing teeth 303 of the second press roll 308 cooperating therewith.

Specifically, one end of the crushing tooth 303 far away from the first pressing roller 302 or the second pressing roller 308 is in a pointed structure.

Further, elastic filter screen 311 is the slope structure, and the discharge gate sets up in the lower one side of the horizontal height in elastic filter screen 311, makes things convenient for the plastic sheet to discharge from the inner chamber of shell 305.

The center of the lower surface of the elastic filter screen 311 is provided with a rapping device 312.

Further, the lower end face of the discharge port is flush with the edge of the upper surface of the elastic filter screen 311.

Further, a material collecting box 314 is provided at a lower portion of the discharge port 315, and the material collecting box 314 is used for receiving the discharged impurities.

Specifically, the area of the upper end opening of the material collection box 314 is larger than the area of the discharge port 315.

Further, the lower portion of the housing 305 is a tapered, sloped sidewall 310.

Further, the lower portion of the housing 305 is supported by a second bracket 313 so that the discharge port 315 is set at a height above the ground.

Further, a discharge pipe 309 is installed at the discharge port.

Further, the rapper 312 is an air rapper 312, and the air rapper 312 is in communication with an external air source.

When using breaker, utilize first material feeding unit to drop into in the shell 305 inner chamber from the first feed inlet 505304 who sends into breaker 3 with the material, external drive arrangement such as starter motor 903, the plastic sheeting enters into the V-arrangement space that first squeeze roll 302 and second squeeze roll 308 formed, then broken tooth 303 tears plastic sheeting and impurity, extrudees in order to realize the breakage at the rotation in-process, large granule soil is broken into the tiny particle, soil particle and plastic sheeting separation of plastic sheeting for plastic and fall respectively. When the agricultural film and the particle impurities fall on the upper surface of the elastic filter screen 311, the agricultural film cannot pass through the filter holes 508, and the particle impurities fall into the material collecting box 314 from the filter holes 508 of the elastic filter screen 311.

The rapping device 312 can drive the elastic filter screen 311 and the plastic sheets of plastic films to vibrate, and the particle impurities are further separated from the plastic sheets of plastic films to realize filtering and screening. The vibration of the rapper 312 can avoid that the filter holes 508 of the elastic filter screen 311 are clogged.

Because the elastic filter screen has a certain taper, when the rapping device 312 works, the vibration of the whole elastic filter screen 311 causes the broken plastic sheets of plastic films to slide and move towards the edge, and finally reach the discharge port and be discharged from the discharge pipe 309.

The material discharged from the discharging pipe 309 is fed into the cleaning device 11 through the second feeding device for cleaning, and the cleaning device 11 may adopt existing equipment, which is not described herein again.

The second feeding device has substantially the same structure as the first feeding device, except that the second feeding device does not have the inverted U-shaped mounting frame 217 and the swinging plate 205 on the mounting frame 217, and the intermittent feeding cannot be realized.

As shown in fig. 13 to 16, the drying device 5 includes a filter cartridge 507 and two third brackets 503, a plurality of filter holes 508 are uniformly distributed on the outer circumferential side of the filter cartridge 507, and two ends of the filter cartridge 507 are respectively fixedly connected to one third bracket 503.

A rotating shaft 519 with the same rotating axis as the filtering cylinder 507 is arranged in the filtering cylinder 507, two ends of the rotating shaft 519 penetrate through two end faces of the filtering cylinder 507 and then are respectively connected with the adjacent third supports 503 in a rotating mode, one end of the rotating shaft 519 penetrates through the third supports 503 and is connected with a rotary driving device, and stirring teeth 520 are uniformly distributed on the outer side face of the rotating shaft 519.

Specifically, the difference between the length of the stirring teeth 520 and the radius of the filter cylinder 507 is 1-2cm, so that the rotation of the stirring teeth 520 is not obstructed by the filter cylinder 507 while the stirring teeth 520 can separate the plastic sheets of the agricultural film attached to the inner wall of the filter cylinder 507.

The rotation driving device comprises a first motor 513, the first motor 513 is fixedly connected with the third bracket 503, and the first motor 513 can drive a rotating shaft 519 to rotate. One end of the rotating shaft 519 penetrates through the third bracket 503 and then is fixedly connected with the first synchronous pulley 511, an output shaft of the first motor 513 is fixedly connected with the second synchronous pulley 514, and the first synchronous pulley 511 is connected with the second synchronous pulley 514 through the synchronous belt 512.

Specifically, the diameters of the first timing pulley 511 and the second timing pulley 514 may be the same or different, and may be set by those skilled in the art.

One end of the outer circle side surface of the filter cylinder 507 is provided with a feeding hole 505, the other end is provided with a first discharging hole 510, and the feeding hole 505 and the first discharging hole 510 are both arranged at the upper part of the filter cylinder 507.

Specifically, the inlet 505 is connected to a feeding pipe, and the first outlet 510 is connected to a discharging pipe 309.

An end face of the filter cartridge 507 near the feed inlet 505 is provided with an air hole 914, and the air hole 914 is communicated with an outlet of the fan 501.

An outlet of the fan 501 is communicated with one end of a gas pipeline 502, the other end of the gas pipeline 502 is respectively communicated with one end of a plurality of branch gas pipes 504, and the other end of each branch gas pipe 504 is respectively communicated with one gas hole 914.

Specifically, the fan 501 is fixedly connected to a third bracket 503 near the feed inlet 505.

Two lantern rings 521 are sleeved outside the round side face of the filter cylinder 507, the two lantern rings 521 are respectively positioned at the left end and the right end of the filter cylinder 507, a scraping plate 509 is fixedly connected between the two lantern rings 521, and a brush 509B is arranged at one end, close to the filter cylinder 507, of the scraping plate 509; the brush 509B is disposed to be attached to an outer circumferential side surface of the filter cartridge 507, and the collar 521 can be rotated along the filter cartridge 507 by the driving of the driving device. The driving device comprises a second motor 515, the second motor 515 is fixedly connected with a third bracket 503 provided with a first motor 513, and an output shaft of the second motor 515 is fixedly connected with a gear 516; a ring gear 509A is fixedly sleeved on the outer part of the ring 521 close to the second motor 515, and the gear 516 is meshed with the ring gear 509A.

Specifically, the number of the scrapers 509 may be single or plural, and may be set by a person skilled in the art.

A first baffle 506 is arranged outside the filter cylinder 507, the collar 521 is positioned between the first baffle 506 and the filter cylinder 507, and the first baffle 506 is a circular arc-shaped plate.

Specifically, the first baffle 506 is formed by arranging an opening on one side of a cylindrical structure, the first baffle 506 is sleeved outside the filter cylinder 507, and water drops and partial impurities flying out of the filter holes 508 can be blocked and collected by the first baffle 506 and leak down from the lower end opening under the action of gravity.

An object receiving box 518 is installed between the two third brackets 503, and a water outlet 517 is arranged at the bottom of the object receiving box 518.

Specifically, the sidewall of the material receiving box 518 has a taper, and water drops and impurities falling into the material receiving box 518 can flow out from the water outlet 517.

The washed plastic sheets of agricultural film are fed into the filter drum 507 through the feed inlet 505 by using a third feeding device, then the first motor 513 is started, the first motor 513 rotates to drive the rotating shaft 519 and the stirring teeth 520 to rotate, the plastic sheets of agricultural film generate centrifugal action in the filter drum 507, moisture is thrown out of the filter holes 508, and then the plastic sheets fall into the receiving box 518 after being blocked and collected by the first baffle 506.

When the plastic sheets in the filter cartridge 507 are dried, the fan 501 is activated, and the fan 501 can fill the filter cartridge 507 with a directional airflow, and the dried plastic sheets are discharged from the first discharge port 510 along with the airflow.

After a period of use, the second stepping motor 903 is started to rotate the collar 521 along the filter cylinder 507, and the scraper 509 and the motor brush 509B scrape impurities in the filter holes 508 on the outer side wall of the filter cylinder 507, so that the filter holes 508 are prevented from being blocked by the impurities after long-term use.

The plastic sheets of agricultural film blown out from the first discharge port 510 are guided by a conveying pipe 6 to enter a plastic strip extruder 7, extruded to form plastic strips, and then cut into plastic particles by a plastic strip cutting device 8.

As shown in fig. 17 to 19, the blanking device 9 includes a casing 901, a lower portion of the casing 901 is supported by a fourth support 910, the casing 901 is a vertically arranged cylindrical structure, a bottom plate is provided at the bottom of the casing 901, and a plurality of air holes 914 are uniformly distributed on the bottom plate.

The bottom plate is provided with a branch jet pipe 912 below, an air hole 914 is communicated with the branch jet pipe 912, the branch jet pipe 912 is communicated with a main jet pipe 911, the main jet pipe 911 is communicated with an external air supply device, and the external air supply device can provide air flow.

A second discharge hole 908 is formed in one side of the housing 901, and a second baffle 907 capable of being opened and closed is formed in the second discharge hole 908.

Specifically, the air supply device may be an air pump or a fan 501.

Specifically, the outer circumferential side surface of the main jet pipe 911 is provided with a plurality of through holes 107 communicated with the inner cavity of the main jet pipe 911, each through hole 107 is connected with one end of a branch jet pipe 912, the other end of the branch jet pipe 912 is connected with an air hole 914, and the branch jet pipe 912 is used for conveying the air flow in the main jet pipe 911 to the inner cavity of the housing 901. The gas injection branch pipe 912 is of a hose structure, so that the gas injection branch pipe 912 can be bent.

Further, a support rod 206 structure is fixedly arranged at the upper end of the casing 901, a motor 903 is fixedly arranged at the center of the support rod 206 structure, an output shaft of the motor 903 is vertically arranged downwards and extends into the inner cavity of the casing 901, and the output shaft of the motor 903 is overlapped with the central axis of the casing 901.

An output shaft of the motor 903 is fixedly connected with the pipe sleeve, a plurality of stirring plates 913 are uniformly distributed on the outer side surface of the pipe sleeve, and the stirring plates 913 can rotate in the inner cavity of the casing 901 under the driving of the motor 903.

The center of the pipe sleeve is provided with a mounting hole 913A, and an output shaft of the motor 903 is inserted into the mounting hole 913A and fixed with the pipe sleeve in a key connection or bolt connection mode.

Further, the support rod 206 structure includes a first support rod 902 and a second support rod 904 perpendicular to each other, and the first support rod 902 and the second support rod 904 are both arranged along a diameter direction of the housing 901.

Further, a limiting sleeve 905 is fixedly arranged on the outer wall of the casing 901 above the second discharge port 908, the second baffle 907 is installed in the limiting sleeve 905, and the second baffle 907 can move up and down along the limiting sleeve 905 to realize the opening and closing of the second discharge port 908.

Further, a second locking bolt 906 is arranged on the side face of the limiting sleeve 905, and the second locking bolt 906 passes through a threaded hole in the limiting sleeve 905 and then contacts with the second baffle 907.

Further, the second discharge port 908 is provided with a discharge plate 909, and the discharge plate 909 is disposed below the second discharge port 908 and is fixedly connected to the housing 305 of the casing 901.

When the device is used, the discharge port of the plastic strip cutting device is arranged above the shell 901, and plastic particles discharged from the discharge port fall into the inner cavity of the shell 901.

The air current that outside air feeder provided is discharged from gas vent 914 along the transport of jet main 911 and jet branch 912, and the air current is contacted with the plastic granules in the upward motion's of in-process, realizes the cooling and the dehumidification of plastic granules.

During the operation of the external air supply device, the motor 903 is started, and the motor 903 drives the stirring plate 913 to rotate, so that the plastic particles in the housing 901 are stirred and can be fully contacted with the air flow.

The embodiment also provides an agricultural film recycling and granulating production method, which utilizes the agricultural film recycling and granulating production line and comprises the following steps:

step 1, recovering, bundling and collecting the agricultural film to a production field, placing the bundled agricultural film into a cutting device 1 and cutting the bundled agricultural film into long strip-shaped plastic strips;

step 2, conveying the plastic strips obtained by the cutting device 1 into a crushing device 3 through a first feeding device 2;

step 3, crushing the plastic strips into plastic sheets by using a crushing device 3;

step 4, conveying the plastic sheets obtained in the crushing device 3 to a cleaning device 11 by using a second feeding device 10;

step 5, cleaning the plastic sheets by using a cleaning device 11 so as to separate the plastic sheets from impurities;

step 6, conveying the cleaned plastic sheets to a drying device 5 by using a third feeding device 4;

step 7, drying the cleaned plastic sheets by using a drying device 5 and conveying the dried plastic sheets to a granulator;

and 9, receiving the plastic particles discharged from the granulator by the blanking device 9, cooling and dehumidifying the plastic particles.

In the process of crushing the plastic strips by the crushing device 3 in the step 4, impurities smaller than the set particle size are separated from the plastic sheets by the elastic filter screen 311.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.

Claims

1. The utility model provides an agricultural film retrieves granulation production line, includes that it arranges in proper order along setting for the direction:

a cutting device for cutting the bundle of plastic film into an elongated plastic strip;

the first feeding device is used for conveying the plastic strips obtained by the cutting device into the crushing device;

a breaking device for further breaking the plastic strips into plastic pieces;

the second feeding device is used for conveying the plastic sheets obtained in the crushing device to the cleaning device;

the cleaning device is used for cleaning the plastic sheets so as to separate the plastic sheets from impurities;

the third feeding device is used for conveying the cleaned plastic sheets to the drying device;

the drying device is used for drying the cleaned plastic sheets and conveying the dried plastic sheets to the granulator;

a pelletizer capable of receiving the dried plastic flakes and producing them into plastic pellets;

the blanking device is used for receiving the plastic particles discharged from the granulator, cooling and dehumidifying the plastic particles;

the agricultural film cutting device is characterized by comprising a cutting mechanism, wherein a first conveying mechanism and a second conveying mechanism are respectively arranged on two sides of the cutting mechanism, the first conveying mechanism is used for conveying agricultural films into the cutting mechanism, and the second conveying mechanism is used for conveying the agricultural films processed by the cutting mechanism out;

the cutting mechanism comprises a supporting plate, an inverted U-shaped first support is arranged on the upper surface of the supporting plate, the first support is arranged across the supporting plate, a guillotine capable of linearly reciprocating in the vertical direction is arranged in the first support, a hydraulic cylinder is mounted in the first support, the cylinder body of the hydraulic cylinder is fixedly connected with a support frame, the piston rod of the hydraulic cylinder is vertically arranged downwards, the piston rod is fixedly connected with the guillotine, the first feeding device comprises a mounting frame, a first support frame and a second support frame which are vertically arranged, the first support frame and the second support frame are supported through the ground, two ends of the mounting frame are respectively supported through the first support frame and the second support frame, the top end of the first support frame is lower than the top end of the second support frame, and the mounting frame is obliquely arranged;

one end, provided with a first carrier roller, of the conveying belt is arranged close to the second conveying mechanism, plastic strips in the second conveying mechanism can be transferred into the conveying belt, an outer support is arranged at one end, close to the first support frame, of the mounting frame, the outer support stretches across the mounting frame, a swinging plate is rotatably arranged in the outer support, the swinging plate is rotatably connected with the top end of the outer support, a supporting rod in the horizontal direction is arranged at the top end of the outer support, and the supporting rod extends out towards the direction of the first carrier roller;

a spring is connected between the support rod and the bottom of the swinging plate, a ferromagnet is arranged at the bottom of the swinging plate, and an electromagnet is arranged at the bottom of the outer support;

the crushing device comprises two first squeezing rollers and a second squeezing roller which are arranged in an inner cavity of a shell and have mutually parallel central axes, an elastic filter screen which is obliquely arranged is arranged in the inner cavity of the shell and divides the inner cavity of the shell into an upper crushing space and a lower filtering space, a discharge port is formed in the shell at the upper part of the elastic filter screen, a discharge port is formed in the bottom end of the shell, and a first feed port is formed in the top end of the shell;

the blanking device comprises a shell, the shell is of a vertically-arranged cylindrical structure, a bottom plate is arranged at the bottom of the shell, a plurality of air holes are uniformly distributed in the bottom plate, and the lower part of the shell is supported by a fourth support; the air hole is communicated with an external air supply device.

2. The agricultural film recycling and granulating production line of claim 1, wherein one first squeeze roller is respectively arranged on two sides of a second squeeze roller, the second squeeze roller is positioned below the first squeeze roller, crushing teeth are arranged on the outer side surfaces of the first squeeze roller and the second squeeze roller, and the crushing teeth of the first squeeze roller and the crushing teeth of the second squeeze roller are matched with each other;

the second extrusion roller is fixedly connected with the shell, the first extrusion roller can rotate along the axis of the first extrusion roller under the driving of the external driving device so as to realize the relative rotation of the first extrusion roller and the second extrusion roller, and the crushing teeth can extrude materials in the relative rotation process so as to realize the crushing of the materials.

3. The agricultural film recycling and granulating production line of claim 1, wherein the drying device comprises a filter cylinder and two third brackets, a plurality of filter holes are uniformly distributed on the outer circumferential side surface of the filter cylinder, and two ends of the filter cylinder are respectively fixedly connected with one third bracket;

4. The agricultural film recycling and granulating production line of claim 1, wherein a branch air injection pipe is arranged below the bottom plate, the air holes are communicated with the branch air injection pipe, the branch air injection pipe is communicated with a main air injection pipe, the main air injection pipe is communicated with an external air supply device, and the external air supply device can provide air flow;

5. The agricultural film recycling and granulating production line as claimed in claim 1, wherein the granulating machine comprises a plastic strip extruder and a plastic strip cutting device, the plastic strip extruder is used for producing and discharging the dried plastic film into plastic strips, and the plastic strip cutting device is used for cutting the discharged plastic strips into plastic granules.

6. An agricultural film recycling and granulating production method, which utilizes the agricultural film recycling and granulating production line of any one of claims 1 to 5, and is characterized by comprising the following steps:

7. The agricultural film recycling granulation production method according to claim 6,