Harmless recycling treatment and high-value utilization method for agricultural mulching film

Abstract

The invention discloses an agricultural mulching film harmless recovery treatment and high-value utilization method, and relates to the technical field of recovery treatment.The agricultural mulching film harmless recovery treatment and high-value utilization method comprises a winnowing chamber, a solid recovery mechanism, a dust suppression recovery mechanism, a spraying mechanism and an air guide mechanism, dust is subjected to dust suppression recovery through cooperation of the spraying chamber and the spraying mechanism, and a degradation reagent is sprayed to mulching film fragments; meanwhile, a recycling conveying belt is matched with an air guide mechanism to guide airflow and recycle mulching film fragments carried by the recycling conveying belt, so that the mulching film fragments are attached to the surface of the recycling conveying belt, are transferred into a drying chamber and are matched with an air heater to be recycled and dried, and pesticide on the surfaces of the mulching film fragments is degraded by a degradation reagent sprayed in the transferring-in process; the air guide mechanism guides air flow and cooperates with the flat air jet head and the inclined air jet plate to discharge the air flow in a split-flow manner, so that the air flow is utilized to reduce sludge blockage of the discharge port at the bottom of the discharge groove and maintain the bottom temperature of the opening-closing screen, and the situation that the temperature of the opening-closing screen is too high, and consequently mulching film fragments accumulated on the top face of the opening-closing screen are melted and attached is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of recycling, in particular to a harmless recycling and high-value utilization method of agricultural mulching film. BACKGROUND

[0002] Agricultural mulching film is a plastic film widely used in the field of agriculture, mainly used for covering farmland to improve soil temperature, maintain soil humidity, promote seed germination and rapid growth of seedlings, and inhibit weed growth. Moreover, since agricultural mulching film is an important material that can achieve "reduction, reuse, and resource" in modern economic development, its production and processing are pollution-free, low-consumption, and high-efficiency processes. Most agricultural mulching film mixed with sand and straw and other impurities can be reused after shredding and sorting, and is a typical resource-saving material. Therefore, shredding, sorting recycling, and reuse of agricultural mulching film have very important practical significance.

[0003] The main shortcomings of the prior art are that the existing sorting equipment for recycling and regenerating waste mulching film generally uses air separation, and the dust generated together with the mulching film fragments is concentrated in the filtering and screening equipment. Although the mulching film fragments can be effectively intercepted and recycled, they are easily mixed with a large amount of dust during the recycling process due to factors such as wind force or surface indentations of the mulching film fragments. Moreover, the dust accumulated on the surface of the mulching film affects the efficiency of subsequent spraying of degradation reagents. In addition, during the subsequent drying process, the filter ventilation net at the bottom of the drying chamber is usually heated by continuous hot air, which causes the surface temperature to be relatively high, easily melting the mulching film fragments, and affecting subsequent recycling. SUMMARY

[0004] Therefore, in order to solve the above problems, the present application provides a harmless recycling and high-value utilization method of agricultural mulching film.

[0005] The present application is implemented by constructing a harmless recycling and high-value utilization method of agricultural mulching film, with the following steps: Step one: separate the soil and debris mixed with mulching film fragments by air separation equipment; Step two: recycle most of the larger soil and debris particles by solid recycling equipment; Step three: blow the separated dust and mulching film fragments into the dust suppression and recycling equipment by generating a larger airflow by the air separation equipment; Step four: suppress and recycle the dust in the airflow by the spraying part of the dust suppression and recycling equipment, and spray degradation reagents for the mulching film fragments; Step five: guide the airflow and recycle the mulching film fragments in the airflow by the transmission part of the dust suppression and recycling equipment in cooperation with the air guide part; Step six: dry the mulching film fragments by the drying part of the dust suppression and recycling equipment; Step seven: through the guide wind part of dust suppression recycling equipment to reuse airflow, reduce the silt blockage at the bottom of the spraying part; Step eight: through the extrusion melting equipment to extrude and melt the mulch fragments for recycling; Step nine: through the guide wind part of dust suppression recycling equipment to reuse airflow, maintain the temperature at the bottom of the drying part.

[0006] The device comprises: the air separation equipment comprises: an air separation chamber, the solid recycling equipment comprises: a solid recycling mechanism, the dust suppression recycling equipment comprises: a dust suppression recycling mechanism, a spraying mechanism and a guide wind mechanism, the extrusion melting equipment comprises: an extrusion melting device, the dust suppression recycling mechanism further comprises: a spraying chamber and a drying chamber, the air separation chamber rear outlet is fixedly connected with the spraying chamber, the rear end of the spraying chamber is fixedly connected with the drying chamber, a recycling conveying belt is vertically arranged between the spraying chamber and the drying chamber, the recycling conveying belt is internally provided with the guide wind mechanism, the spraying chamber bottom is provided with a discharge chute, spraying mechanisms are arranged on the left and right sides of the spraying chamber, a hot air blower is fixedly connected to the top surface of the drying chamber, three groups of inclined scrapers are fixedly connected to the inner side of the drying chamber at equal intervals, the front ends of the inclined scrapers are attached to the back of the recycling conveying belt, a second recycling hopper is fixedly connected to the bottom of the drying chamber, the top surface of the second recycling hopper is provided with an opening and closing screen, and the extrusion melting device is arranged at the lower end of the second recycling hopper.

[0007] Preferably, a first motor is fixedly connected to the middle of the front side of the air separation chamber, the output shaft of the first motor penetrates and is rotationally connected to the front side of the inner side of the air separation chamber, the output shaft of the first motor is fixedly connected to the front end of a transmission long shaft, the transmission long shaft penetrates and is rotationally connected to the central shaft of the inner side of the air separation chamber, a fan is fixedly connected to the front end of the transmission long shaft, a crushing knife is fixedly connected to the middle rear end of the transmission long shaft, the front end of the transmission long shaft penetrates and is rotationally connected to the through hole in the middle of the isolation net, the isolation net is fixedly connected to the front part of the inner side of the air separation chamber, a first scraper is fixedly connected to the front end of the crushing knife, the front end of the crushing knife is attached to the back of the isolation net, and an arc-shaped screen is arranged at the bottom of the air separation chamber.

[0008] Preferably, the guide wind mechanism comprises: a hollow guide wind plate, the hollow guide wind plate is arranged in the recycling conveying belt, inclined guide wind transverse plates are fixedly connected to the front side of the hollow guide wind plate at equal intervals, fans are fixedly connected to the middle of the left and right sides of the hollow guide wind plate, a first guide wind pipe is fixedly connected to the side of the fan of the right side of the hollow guide wind plate, a flat jet head is fixedly connected to the lower end of the hollow guide wind plate, the front end of the flat jet head is fixedly connected to the side of the discharge port of the discharge chute, a second guide wind pipe is fixedly connected to the side of the fan of the left side of the hollow guide wind plate, an inclined jet plate is fixedly connected to the lower end of the second guide wind pipe, and the inclined jet plate is arranged on the inner side of the left and right inclined surfaces of the second recycling hopper.

[0009] Preferably, the solid recovery mechanism comprises: a first recovery hopper, the bottom of the winnowing chamber is fixedly connected with the first recovery hopper, the top of the first recovery hopper is slidably connected with an arc-shaped tool holder, the inner side of the arc-shaped tool holder is equidistantly provided with a plurality of groups of arc-shaped scrapers, the upper left and right sides of the arc-shaped tool holder are fixedly connected with transmission rods, the middle sliding grooves of the transmission rods are in transmission connection with the side transmission short shafts of a transmission turntable, the side centers of the transmission turntable are fixedly connected with the output shafts of a second motor, and the middle parts of the left and right sides of the first recovery hopper are fixedly connected with the second motor.

[0010] Preferably, the spraying mechanism comprises: a first transmission belt, the rear end of the transmission long shaft is fixedly connected with the center of the middle transmission wheel of the first transmission belt, the centers of the front side transmission wheels of the left and right parts of the first transmission belt are in transmission connection with a second transmission belt through bevel gears, the center of the upper transmission wheel of the second transmission belt is fixedly connected with a spraying head, and the spraying head is rotatably connected with the left and right side walls of the spraying chamber.

[0011] Preferably, the left and right side walls of the spraying chamber are fixedly connected with second scrapers, the lower ends of the second scrapers are attached to the spraying surfaces of the spraying head, the first transmission belt is installed on the front side of the installation horizontal plate, the centers of the back parts of the transmission wheels of the left and right parts of the first transmission belt are fixedly connected with a connecting long shaft, the rear end of the connecting long shaft is fixedly connected with the lower transmission wheel of a third transmission belt, and the center of the upper transmission wheel of the third transmission belt is fixedly connected with the rear end of a reciprocating screw rod.

[0012] Preferably, the rear end of the reciprocating screw rod is threadedly connected with the left and right end through holes of a connecting horizontal rod, the left and right ends of the connecting horizontal rod are slidably connected with the left and right side walls of a discharging chute, the bottom of the connecting horizontal rod is installed with a trapezoidal scraper, the bottom of the trapezoidal scraper is attached to the bottom of the discharging chute, the lower part of the second transmission belt is rotatably connected with the installation short plates of the left and right side walls of the spraying chamber, the installation horizontal plate is fixedly connected with the bottom of the spraying chamber, and the upper transmission wheel of the third transmission belt is rotatably connected with the reciprocating screw rod in the left and right side walls of the spraying chamber.

[0013] Preferably, the plurality of groups of arc-shaped scrapers on the inner side of the arc-shaped tool holder are attached to the bottom of the arc-shaped screen, the side walls of the recovery conveying belt are triangular, the front side of the recovery conveying belt is an inclined surface, the upper end of the recovery conveying belt leaves a certain gap with the top of the spraying chamber, and the recovery conveying belt is composed of a waterproof and breathable film.

[0014] Preferably, the front side of the hollow air guide plate and the inclined air guide horizontal plate leave a certain gap with the front side of the inner side of the recovery conveying belt, the opening and closing screen is driven to open and close by a motor, the lower end collecting groove of the second recovery hopper is rotatably connected with the auger of the extrusion melting device, the left and right parts of the back part of the inclined scraper are provided with flow guide blocks, the back flow guide surface of the flow guide blocks is trapezoidal, and the discharging port of the discharging chute is provided with a rotary dust discharging valve.

[0015] The present application has the following advantages: the present application provides an agricultural mulch harmless recycling and high value utilization method, which has the following improvements compared with the same type of equipment: The agricultural mulch harmless recycling and high value utilization method provided by the present application can suppress dust and recycle dust through the spraying chamber and the spraying mechanism, and spray degradation reagents on the mulch fragments, guide the airflow and recover the mulch fragments entrained by the airflow through the recycling transmission belt and the air guide mechanism, so that the mulch fragments adhere to the surface of the recycling transmission belt, and are transferred into the drying chamber and dried by the recycling transmission belt and the air guide mechanism, and the degradation reagents sprayed during the transfer process degrade the pesticides on the surface of the mulch fragments. The airflow is guided by the air guide mechanism, and the airflow is divided and discharged by the flat air jet head and the inclined air jet plate, so as to reduce the silt blockage of the discharge port at the bottom of the discharge chute and maintain the temperature at the bottom of the screen, so as to avoid the melting and adhesion of the mulch fragments accumulated on the top of the screen due to the high temperature of the screen. BRIEF DESCRIPTION OF DRAWINGS

[0016] FIG. 1 is a schematic diagram of the method steps of the present application; FIG. 2 is a schematic diagram of the structure of the present application; FIG. 3 is a schematic diagram of the internal structure of the air separation chamber of the present application; FIG. 4 is a schematic diagram of the internal structure of the dust suppression and recovery mechanism of the present application; FIG. 5 is a schematic diagram of the air guide mechanism structure of the present application; FIG. 6 is a schematic diagram of the spraying mechanism structure of the present application; FIG. 7 is a schematic diagram of the internal structure of the drying chamber and the second recycling hopper of the present application; FIG. 8 is a schematic diagram of the solid recovery mechanism structure of the present application.

[0017] The components include: air separation chamber-100, first motor-101, solid recovery mechanism-102, transmission shaft-103, fan-104, isolation net-105, crushing blade-106, first scraper-107, arc-shaped plug net-108, first recovery funnel-109, arc-shaped blade holder-110, transmission rod-111, transmission turntable-112, second motor-113, dust suppression and recovery mechanism-200, spraying chamber-201, drying chamber-202, recovery conveyor belt-203, discharge chute-204, second scraper-205, second recovery funnel-206, opening and closing screen-207, and extrusion. Melting device-208, inclined scraper-209, hot air blower-210, spraying mechanism-300, first transmission belt-301, mounting plate-302, bevel gear-303, second transmission belt-304, spray head-305, connecting long shaft-306, third transmission belt-307, reciprocating screw-308, connecting crossbar-309, trapezoidal scraper-310, air guiding mechanism-400, hollow air guiding plate-401, inclined air guiding plate-402, fan-403, first air guiding pipe-404, flat jet nozzle-405, second air guiding pipe-406, inclined jet plate-407. Detailed Implementation

[0018] The following is in conjunction with the appendix FIG. 1~FIG. 8 The principles and features of the present invention are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of the invention. The invention is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.

[0019] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of the present application, it should be noted that unless otherwise expressly specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The embodiments are described below according to the overall structure of the present application.

[0021] Embodiment one:

[0022] Please refer to FIG. 1~FIG. 8 The harmless recycling and high-value utilization method of the agricultural mulching film of the present application comprises the following steps: Step one: the soil block sundries mixed with film fragments are crushed and separated by the air separation equipment, and most of the larger particles of soil block sundries and dust and film fragments are transported to the next process mechanism respectively by using air flow and gravity; Step two: most of the larger particles of soil block sundries are recycled by the solid recycling equipment, and the bottom screen of the air separation equipment is continuously scraped by the solid recycling equipment to avoid blockage when the soil block sundries fall; Step three: the dust and film fragments separated during crushing are blown into the dust suppression recycling equipment by the air flow generated by the air separation equipment, so as to avoid the mixing of the separated materials after crushing, which is not conducive to subsequent recycling; Step four: the dust in the air flow is suppressed and recycled by the spraying part of the dust suppression recycling equipment, and the film fragments are sprayed with degradation reagent to facilitate harmless treatment; Step five: the air flow is guided by the transmission part of the dust suppression recycling equipment in cooperation with the air guide part, and the film fragments in the air flow are recycled, so as to maintain the stability of the air flow of the dust suppression recycling equipment while recycling and reusing the air flow; Step six: the film fragments are dried by the drying part of the dust suppression recycling equipment to facilitate subsequent melting and shaping for reuse; Step seven: the air flow is reused by the air guide part of the dust suppression recycling equipment to reduce the silt blockage at the bottom of the spraying part, so as to avoid blockage caused by slow natural flow of silt; Step eight: the film fragments are extruded and melted to shape for reuse by the extrusion melting equipment, so as to improve the reuse value of the film fragments; Step nine: the air flow is reused by the air guide part of the dust suppression recycling equipment to maintain the temperature at the bottom of the drying part, so as to avoid melting of the film fragments during the drying process and adhesion to the drying part.

[0023] Embodiment two:

[0024] Please refer toFIG. 1~FIG. 8 The present invention discloses a method for the harmless recycling and high-value utilization of agricultural mulch film, comprising: an air separation device including an air separation chamber 100; a solid recycling device including a solid recycling mechanism 102; a dust suppression and recycling device including a dust suppression and recycling mechanism 200, a spraying mechanism 300, and an air guiding mechanism 400; an extrusion melting device including an extrusion melting device 208; the dust suppression and recycling mechanism 200 further including a spraying chamber 201 and a drying chamber 202; a first motor 101 is fixedly connected to the middle of the front side of the air separation chamber 100; and the output shaft of the first motor 101... A drive shaft 103 is rotatably connected to the front side of the air classifier chamber 100. The output shaft of the first motor 101 is fixedly connected to the front end of the drive shaft 103, which is rotatably connected to the central shaft inside the air classifier chamber 100. A fan 104 is fixedly connected to the front end of the drive shaft 103, and a crusher 106 is fixedly connected to the rear end of the drive shaft 103 for easy material separation. The front end of the drive shaft 103 is rotatably connected to a through hole in the middle of an isolation net 105, which is fixedly connected to the front side of the air classifier chamber 100 to prevent material separation. The product adheres to the fan 104. A first scraper 107 is fixedly connected to the front end of the crushing blade 106 to facilitate continuous scraping away blockages. The front end of the crushing blade 106 is attached to the back of the isolation net 105 to facilitate continuous scraping away the separated material blocking the isolation net 105. An arc-shaped plug net 108 is provided at the bottom of the air separation chamber 100. The solid recovery mechanism 102 includes: a first recovery funnel 109, which is fixedly connected to the bottom of the air separation chamber 109. An arc-shaped blade holder 110 is slidably connected to the top surface of the first recovery funnel 109. Inside the arc-shaped blade holder 110... Multiple sets of arc-shaped scrapers are equidistantly arranged on the sides, and transmission rods 111 are fixedly connected to the left and right sides of the upper end of the arc-shaped scraper holder 110. The middle groove of the transmission rod 111 is connected to the short transmission shaft on the side of the transmission turntable 112. The center of the side of the transmission turntable 112 is fixedly connected to the output shaft of the second motor 113. The second motor 113 is fixedly connected to the middle of the left and right sides of the upper end of the first recycling funnel 109. Multiple sets of arc-shaped scrapers on the inner side of the arc-shaped scraper holder 110 are in contact with the bottom of the arc-shaped plug 108, which facilitates scraping the arc-shaped plug 108 and prevents the arc-shaped plug 108 from becoming blocked.

[0025] The working principle of the agricultural mulch film harmless recycling and treatment equipment based on Embodiment 2 is as follows: First, the material is poured into the air separation chamber 100. Then, the first motor 101 drives the transmission shaft 103, which in turn drives the fan 104 and the crushing blade 106 to rotate, thereby generating airflow and separating large particles such as soil clods, dust and mulch film fragments. The airflow carries the dust and mulch film fragments into the spray chamber 201 of the dust suppression and recovery mechanism 200, while large particles such as soil clods fall into the solid recovery mechanism 102 through the arc-shaped plug net 108. The second motor 113 output shaft of the solid recovery mechanism 102 drives the transmission turntable 112 to rotate, thereby cooperating with the transmission rod 111 to drive the arc-shaped cutter holder 110 to reciprocate on the top surface of the first recovery funnel 109, so that the arc-shaped scraper in the arc-shaped cutter holder 110 scrapes the bottom of the arc-shaped plug screen 108, avoids large-particle impurities from blocking the arc-shaped plug screen 108, and speeds up the large-particle impurities to fall into the first recovery funnel 109 for recovery.

[0026] Example three:

[0027] Please refer to FIG. 1~FIG. 8Compared with the second embodiment, the harmless recycling equipment for agricultural mulching film of the present application further comprises: the air outlet at the rear end of the air separation chamber 100 is fixedly connected with the spraying chamber 201, the rear end of the spraying chamber 201 is fixedly connected with the drying chamber 202, a recycling conveying belt 203 is vertically arranged between the spraying chamber 201 and the drying chamber 202, a wind guide mechanism 400 is arranged on the inner side of the recycling conveying belt 203, a discharge chute 204 is arranged at the bottom of the spraying chamber 201, which is convenient for stacking the recycling sludge, spraying mechanisms 300 are arranged on the left and right sides of the spraying chamber 201, a hot air blower 210 is fixedly connected to the top surface of the drying chamber 202, which is convenient for drying the film fragments, three groups of inclined scrapers 209 are fixedly connected to the inner side of the drying chamber 202 at equal intervals, the front end of the inclined scraper 209 is attached to the back of the recycling conveying belt 203, which is convenient for scraping off the wet film fragments, a second recycling hopper 206 is fixedly connected to the bottom of the drying chamber 202, an openable screen 207 is arranged on the top surface of the second recycling hopper 206, and an extrusion melting device 208 is arranged at the lower end of the second recycling hopper 206, which is convenient for extruding and melting the dried film fragments for recycling, the wind guide mechanism 400 comprises: a hollow air guide plate 401, the hollow air guide plate 401 is arranged on the inner side of the recycling conveying belt 203, inclined air guide horizontal plates 402 are fixedly connected to the front surface of the hollow air guide plate 401 at equal intervals, which is convenient for guiding the airflow, air blowers 403 are fixedly connected to the left and right surfaces of the middle part of the hollow air guide plate 401, which is convenient for maintaining the introduction and exhaust of the airflow, a first air guide pipe 404 is fixedly connected to the side surface of the air blower 403 on the right side surface of the hollow air guide plate 401, a flat air jet head 405 is fixedly connected to the lower end of the hollow air guide plate 401, the front surface of the flat air jet head 405 is provided with oblique air jet holes, which is convenient for obliquely discharging the airflow to continuously blow the sludge and reduce the blockage of the discharge chute 204, the front end of the flat air jet head 405 is fixedly connected to the side surface of the discharge port of the discharge chute 204, which is convenient for maintaining the temperature of the bottom of the openable screen 207 through the discharged airflow, a second air guide pipe 406 is fixedly connected to the side surface of the air blower 403 on the left side surface of the hollow air guide plate 401, an inclined air jet plate 407 is fixedly connected to the lower end of the second air guide pipe 406, the inclined air jet plate 407 is arranged on the left and right inclined surfaces of the inner side of the second recycling hopper 206, the side surface of the recycling conveying belt 203 is triangular, and the front surface thereof is inclined, which is convenient for guiding the airflow, the upper end of the recycling conveying belt 203 is left with a certain gap from the top surface of the spraying chamber 201, which is convenient for transferring the film fragments into the drying chamber 202, the recycling conveying belt 203 is composed of a waterproof and breathable film, which is convenient for the airflow to pass through and reduce the moisture entering the drying chamber 202, the front surface of the hollow air guide plate 401 and the inclined air guide horizontal plate 402 are left with a certain gap from the front surface of the inner side of the recycling conveying belt 203, the openable screen 207 is driven to open and close by a motor, the lower end collecting groove of the second recycling hopper 206 is rotatably connected with the extrusion melting device 208, which is convenient for the dried film fragments to enter the extrusion melting device 208, the left and right parts of the back of the inclined scraper 209 are provided with flow guide blocks, and the back flow guide surface thereof is trapezoidal, which is convenient for concentrating and scraping off the wet film fragments to the openable screen 207,The bottom of the discharge port of the discharge chute 204 is provided with a rotary dust valve, which facilitates the discharge of sludge and does not affect the sealing of the spraying chamber 201, avoiding the deviation of the airflow.

[0028] In this embodiment: When the airflow generated by the fan 104 carries the dust and mulch fragments into the spraying chamber 201, the spraying head 305 of the spraying mechanism 300 continuously sprays water containing degradation reagents into the spraying chamber 201, keeping the inside of the spraying chamber 201 moist, thereby suppressing dust condensation in the airflow and causing the dust to fall into the discharge chute 204 to form sludge, and causing the mulch fragments on the surface to mix with the degradation reagents and degrade; The air fan 403 of the air guide mechanism 400 guides the airflow to pass through the waterproof and breathable membrane of the recycling conveyor belt 203 and enter the hollow air guide plate 401, so that the mulch fragments in the airflow are affected by the airflow and the moist state, and then adhere to the front side of the recycling conveyor belt 203, thereby transferring the mulch fragments into the drying chamber 202 through the recycling conveyor belt 203; The inclined scraper 209 scrapes the wet mulch fragments onto the top surface of the opening and closing screen 207, and the hot air fan 210 dries the mulch fragments. After the processing of this batch of materials is completed, the opening and closing screen 207 is opened, and the accumulated mulch fragments fall into the second recycling hopper 206, and then the mulch fragments are extruded and melted by the extrusion and melting device 208 for reshaping and reuse; The airflow is divided by the air fan 403 cooperating with the first air guide pipe 404 and the second air guide pipe 406, and is discharged through the flat air jet head 405 and the inclined air jet plate 407. When the airflow is discharged through the flat air jet head 405, the airflow continuously blows the sludge at the bottom of the discharge port of the discharge chute 204, reducing the likelihood of clogging. When the airflow is discharged through the inclined air jet plate 407, the airflow maintains the temperature at the bottom of the opening and closing screen 207, preventing the opening and closing screen 207 from melting and adhering to the top surface of the opening and closing screen 207 due to prolonged baking, which affects subsequent discharge and recycling. After the opening and closing screen 207 is opened, the two screens are aligned with the inclined air jet plate 407 at a certain level, and the airflow continuously discharged through the inclined air jet plate 407 blows the mulch fragments to the bottom of the second recycling hopper 206, preventing the mulch fragments from being stuck to the screen surface due to irregular shapes.

[0029] Embodiment Four:

[0030] Please refer to FIG. 1~FIG. 8Compared with example three, the agricultural mulching film harmless recycling equipment of the present application further comprises: the spraying mechanism 300 comprises: the first transmission belt 301, the rear end of the transmission long shaft 103 is fixedly connected with the center of the transmission wheel in the middle part of the first transmission belt 301, the front side of the transmission wheel in the left and right parts of the first transmission belt 301 is fixedly connected with the center of the transmission wheel of the second transmission belt 304 through the bevel gear 303, the center of the transmission wheel in the upper part of the second transmission belt 304 is fixedly connected with the spraying head 305, the spraying head 305 is rotatably connected to the left and right side surfaces inside the spraying chamber 201, the second scraper 205 is fixedly connected to the left and right side surfaces inside the spraying chamber 201, the lower end of the second scraper 205 is attached to the spraying surface of the spraying head 305, which facilitates scraping the spraying surface of the rotating spraying head 305, the first transmission belt 301 is installed on the front side of the installation horizontal plate 302, and the back center of the transmission wheel in the left and right parts of the first transmission belt 301 is fixedly connected with the connecting long shaft 306, the rear end of the connecting long shaft 306 is fixedly connected with the lower transmission wheel of the third transmission belt 307, the center of the upper transmission wheel of the third transmission belt 307 is fixedly connected with the rear end of the reciprocating screw rod 308, the rear end of the reciprocating screw rod 308 is threadedly connected with the through hole in the left and right ends of the connecting horizontal rod 309, which facilitates reciprocatingly driving the connecting horizontal rod 309, the connecting horizontal rod 309 is slidably connected to the left and right side surfaces inside the discharge chute 204, the trapezoidal scraper 310 is installed at the bottom of the connecting horizontal rod 309, which facilitates scraping the sludge in the reciprocating motion through the trapezoidal scraper 310, the bottom of the trapezoidal scraper 310 is attached to the bottom of the discharge chute 204, the lower part of the second transmission belt 304 is rotatably connected to the installation short plate on the left and right side surfaces of the spraying chamber 201, and installation and fixation are provided, the installation horizontal plate 302 is fixedly connected to the bottom of the spraying chamber 201, and the upper transmission wheel of the third transmission belt 307 is rotatably connected to the inner walls on both sides of the spraying chamber 201.

[0031] In the embodiment: Through the cooperation of the transmission long shaft 103, the first transmission belt 301 and the bevel gear 303, two groups of second transmission belts 304 are synchronously driven, and then the spraying head 305 is synchronously driven to rotate, so that the spraying area and effect are enlarged, and the spraying surface of the spraying head 305 is continuously scraped by the fixed second scraper 205, so that dust condensation is prevented from adhering to the spraying holes, and the spraying efficiency is affected. The first transmission belt 301 drives the third transmission belt 307 to rotate through the connecting long shaft 306, so that the reciprocating screw rod 308 is driven to rotate, so that the connecting horizontal rod 309 and the trapezoidal scraper 310 are driven to reciprocate inside the discharge chute 204, so that the sludge accumulated inside the discharge chute 204 is scraped into the discharge port at the bottom of the discharge chute 204 through the reciprocating trapezoidal scraper 310, and is continuously discharged through the rotary dust discharging valve at the bottom of the discharge port.

[0032] The present application provides an agricultural mulching film harmless recycling equipment by improving, dust is suppressed and recycled by the cooperation of the spraying mechanism 300 in the spraying chamber 201, and the mulching film fragments are sprayed with degradation reagent, at the same time, the airflow is guided by the cooperation of the air guide mechanism 400 in the recycling transmission belt 203, and the mulching film fragments entrained by the airflow are recycled, so that the mulching film fragments are attached to the surface of the recycling transmission belt 203, and are transferred into the drying chamber 202 and cooperate with the hot air blower 210 for recycling and drying, and the degradation reagent sprayed in the transfer process degrades the pesticide on the surface of the mulching film fragments, the airflow is guided by the air guide mechanism 400, and the airflow is branched and discharged by the cooperation of the flat air jet head 405 and the inclined air jet plate 407, so as to reduce the silt blockage of the discharge port at the bottom of the discharge chute 204 and maintain the temperature at the bottom of the opening and closing screen 207, so as to avoid the melting and attachment of the mulching film fragments accumulated on the top surface of the opening and closing screen 207 due to the excessively high temperature of the opening and closing screen 207.

[0033] The above shows and describes the basic principles and main features of the present application and the advantages of the present application, and the standard parts used in the present application can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, and the specific connection mode of each part adopts the conventional screw, rivet, welding and other conventional means in the prior art, and the mechanical parts and equipment adopt the conventional types in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0034] The above description of disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for the harmless recycling and high-value utilization of agricultural mulch film, characterized in that... Includes the following steps: Step 1: Separate soil clods and debris mixed with plastic film fragments using an air separation device; Step 2: Use solid waste recycling equipment to recover most of the larger soil clods and debris; Step 3: A large airflow is generated by the air separation equipment to blow the dust and mulch film fragments separated during the crushing process into the dust suppression and recycling equipment; Step 4: The dust in the airflow is suppressed and recovered by the spraying part of the dust suppression and recovery equipment, and degradation reagents are sprayed on the mulch film fragments; Step 5: The dust suppression and recovery equipment guides the airflow and recovers the mulch film fragments in the airflow through the transmission section and the air guide section. Step Six: Dry the plastic film fragments using the drying section of the dust suppression and recycling equipment; Step 7: Reuse the airflow through the air guide section of the dust suppression and recovery equipment to reduce sludge blockage at the bottom of the spraying section; Step 8: The plastic film fragments are extruded, melted, shaped, and reused using an extrusion melting device; Step 9: The airflow is reused through the air guide section of the dust suppression and recovery equipment to maintain the temperature at the bottom of the drying section.

2. A device for the harmless recycling and treatment of agricultural mulch film, used to implement the method for the harmless recycling and high-value utilization of agricultural mulch film as described in claim 1, characterized in that: The air separation equipment includes an air separation chamber (100), the solid recovery equipment includes a solid recovery mechanism (102), the dust suppression and recovery equipment includes a dust suppression and recovery mechanism (200), a spraying mechanism (300) and an air guiding mechanism (400), and the extrusion melting equipment includes an extrusion melting device (208). The dust suppression and recovery mechanism (200) further includes a spraying chamber (201) and a drying chamber (202). The rear air outlet of the air separation chamber (100) is fixedly connected to the spraying chamber (201), and the rear end of the spraying chamber (201) is fixedly connected to the drying chamber (202). A recovery conveyor belt (203) is vertically arranged between the spraying chamber (201) and the drying chamber (202). An air guide mechanism (400) is provided on the inner side of the recovery conveyor belt (203). A discharge chute (204) is provided at the bottom of the spraying chamber (201), and the left and right sides of the spraying chamber (201) are... A spraying mechanism (300) is provided on the side. A hot air blower (210) is fixedly connected to the top surface of the drying chamber (202). Three sets of inclined scrapers (209) are fixedly connected at equal intervals on the front side of the inner side of the drying chamber (202). The front end of the inclined scraper (209) is attached to the back of the recycling conveyor belt (203). A second recycling funnel (206) is fixedly connected to the bottom of the drying chamber (202). An opening and closing screen (207) is provided on the top surface of the second recycling funnel (206). An extrusion melting device (208) is provided at the lower end of the second recycling funnel (206).

3. The agricultural mulch film harmless recycling and treatment equipment according to claim 2, characterized in that: A first motor (101) is fixedly connected to the center of the front side of the air separator (100). The output shaft of the first motor (101) passes through and is rotatably connected to the inner front side of the air separator (100). The output shaft of the first motor (101) is fixedly connected to the front end of a transmission shaft (103). The transmission shaft (103) passes through and is rotatably connected to the inner central shaft of the air separator (100). A fan (104) is fixedly connected to the front end of the transmission shaft (103). A crusher (106) is fixedly connected to the rear end of the shaft (103). The front end of the transmission shaft (103) passes through and is rotatably connected to the through hole in the middle of the isolation net (105). The isolation net (105) is fixedly connected to the front part of the inner side of the air classifier (100). A first scraper (107) is fixedly connected to the front end of the crusher (106). The front end of the crusher (106) is in contact with the back of the isolation net (105). An arc-shaped plug net (108) is provided at the bottom of the air classifier (100).

4. The agricultural mulch film harmless recycling and treatment equipment according to claim 3, characterized in that: The air guiding mechanism (400) includes: a hollow air guiding plate (401), the hollow air guiding plate (401) is provided on the inner side of the recycling conveyor belt (203), inclined air guiding cross plates (402) are fixedly connected at equal intervals on the front side of the hollow air guiding plate (401), a fan (403) is fixedly connected to the middle of the left and right sides of the hollow air guiding plate (401), and a first air guiding pipe (404) is fixedly connected to the side of the fan (403) on the right side of the hollow air guiding plate (401). A flat jet nozzle (405) is fixedly connected to the lower end of the air deflector (401). The front end of the flat jet nozzle (405) is fixedly connected to the side of the discharge port of the discharge trough (204). A second air guide pipe (406) is fixedly connected to the side of the fan (403) on the left side of the hollow air guide plate (401). An inclined jet plate (407) is fixedly connected to the lower end of the second air guide pipe (406). The inclined jet plate (407) is set on the inclined surface on the left and right sides inside the second recovery funnel (206).

5. The agricultural mulch film harmless recycling and treatment equipment according to claim 4, characterized in that: The solid recycling mechanism (102) includes: a first recycling funnel (109), the bottom of the air separation chamber (100) is fixedly connected to the first recycling funnel (109), the top surface of the first recycling funnel (109) is slidably connected to an arc-shaped knife holder (110), the inner side of the arc-shaped knife holder (110) is provided with multiple sets of arc-shaped scrapers at equal intervals, and the upper left and right sides of the arc-shaped knife holder (110) are fixedly connected to a transmission rod (111), the middle groove of the transmission rod (111) is connected to the short transmission shaft on the side of the transmission turntable (112), the center of the side of the transmission turntable (112) is fixedly connected to the output shaft of a second motor (113), and the second motor (113) is fixedly connected to the middle of the upper left and right sides of the first recycling funnel (109).

6. The agricultural mulch film harmless recycling and treatment equipment according to claim 5, characterized in that: The spraying mechanism (300) includes: a first transmission belt (301), the rear end of the transmission shaft (103) is fixedly connected to the center of the transmission wheel in the middle of the first transmission belt (301), the center of the front side of the transmission wheel on the left and right sides of the first transmission belt (301) is connected to the second transmission belt (304) through a bevel gear (303), the center of the upper transmission wheel of the second transmission belt (304) is fixedly connected to the spray head (305), and the spray head (305) is rotatably connected to the left and right sides inside the spraying chamber (201).

7. The agricultural mulch film harmless recycling and treatment equipment according to claim 6, characterized in that: The spray chamber (201) is fixedly connected to the left and right sides of the inner side of the spray chamber (201). The lower end of the second scraper (205) is in contact with the spray surface of the spray head (305). The first transmission belt (301) is installed on the front side of the mounting plate (302). The center of the back of the transmission wheel of the left and right parts of the first transmission belt (301) is fixedly connected to the connecting long shaft (306). The rear end of the connecting long shaft (306) is fixedly connected to the lower transmission wheel of the third transmission belt (307). The center of the upper transmission wheel of the third transmission belt (307) is fixedly connected to the rear end of the reciprocating screw (308).

8. The agricultural mulch film harmless recycling and treatment equipment according to claim 7, characterized in that: The rear end of the reciprocating screw (308) is threadedly connected to the left and right end through holes of the connecting crossbar (309). The left and right ends of the connecting crossbar (309) are slidably connected to the left and right sides inside the discharge trough (204). A trapezoidal scraper (310) is installed at the bottom of the connecting crossbar (309). The bottom of the trapezoidal scraper (310) is in contact with the bottom of the discharge trough (204). The lower part of the second transmission belt (304) is rotatably connected to the short plates installed on the left and right sides of the spray chamber (201). The mounting crossbar (302) is fixedly connected to the bottom of the spray chamber (201). The upper transmission wheel of the third transmission belt (307) is rotatably connected to the reciprocating screw (308) inside the two side walls of the spray chamber (201).

9. The agricultural mulch film harmless recycling and treatment equipment according to claim 8, characterized in that: The inner side of the arc-shaped blade holder (110) has multiple sets of arc-shaped scrapers that fit against the bottom of the arc-shaped mesh (108). The side of the recycling conveyor belt (203) is triangular with its front side being an inclined surface. The upper end of the recycling conveyor belt (203) has a certain gap with the top surface of the spray chamber (201). The recycling conveyor belt (203) is made of a waterproof and breathable membrane.

10. The agricultural mulch film harmless recycling and treatment equipment according to claim 9, characterized in that: The front side of the hollow air guide plate (401) and the inclined air guide plate (402) have a certain gap with the inner front side of the recycling conveyor belt (203). The opening and closing screen (207) is driven by a motor to open and close. The lower end collection trough of the second recycling funnel (206) is rotatably connected to the auger of the extrusion melting device (208). The left and right sides of the back of the inclined scraper (209) are provided with guide blocks, and the back guide surface is trapezoidal. The bottom of the discharge port of the discharge trough (204) is provided with a rotary ash discharge valve.

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