A residue film recovery bale material origin treatment method and equipment

Abstract

The application discloses a kind of residual film recovery bale origin processing method and equipment, wherein method includes residual film bale and is carried out cutting process, residual film crushing process and impurity removal grading process;Rotary screen separation treatment process is arranged between cutting process and residual film crushing process.Equipment includes cutting machine, crusher and impurity removal grading machine, respectively for executing cutting process, residual film crushing process and impurity removal grading process;It also includes rotary screen separator between cutting machine and crusher to implement rotary screen separation treatment process.The application is processed by setting rotary screen separation treatment process, can screen out most of sandstone soil impurities in time to avoid wear and tear to crushing equipment, residual film block can also be scattered to reduce the crushing difficulty of residual film.Various materials can be fully utilized by processing the material obtained by rotary screen separation treatment process and impurity removal grading process, and the utilization value of residual film bale is maximized.

Description

Technical Field

[0001] This invention relates to the field of agricultural residual film recycling technology, and in particular to a method and equipment for processing residual film at the place of origin. Background Technology

[0002] Plastic film is an important agricultural production material. my country uses about 1.4 million tons of plastic film annually, covering an area of ​​nearly 300 million mu (approximately 20 million hectares), accounting for about 90% of the global plastic film covering area. The soil of farmland covered with plastic film has varying degrees of residual pollution. The average residual amount per mu (approximately 0.067 hectares) of farmland nationwide is about 4.5 kg, which seriously restricts the effective treatment of residual pollution from plastic film in arable land and the green and low-carbon development of agriculture.

[0003] After recycling, plastic film is generally transported directly to processing plants without further processing. This results in large land occupation, high volume of transported finished products, difficulty in handling impurities, and low overall economic efficiency. Currently, new-type plastic film recycling machines bundle the recycled film to reduce its volume, requiring further unbundling by processing plants, increasing processing costs. Therefore, it is necessary to pre-treat the bundled plastic film to save costs.

[0004] In the prior art, patent CN 113878758 A discloses a waste agricultural film recycling production line, which mainly includes a pre-cutting and crushing module, an impurity separation and collection module, a stubborn impurity separation module, and a synchronous dewatering module. The pre-cutting and crushing module includes a gantry shearing mechanism and a crushing mechanism. The gantry shearing mechanism is responsible for pre-cutting the waste agricultural film into smaller sizes, and then feeding it into the crushing mechanism through a feeding and conveying device. The gantry shearing mechanism includes a conveying roller, a pushing device, and a gantry hydraulic shear. During operation, the film roll is aligned with the conveying direction of the conveying roller, and the pushing device pushes the film roll segment by segment to the bottom of the hydraulic shear. The shear cuts the film roll into multiple segments. This patent has the following problems: (1) After the film segments obtained by the segmenting mechanism are crushed by the crushing mechanism, impurity separation and other operations are carried out. On the one hand, the straw impurities become difficult to separate after being crushed. On the other hand, many sand and gravel impurities will affect the life of the blades in the crushing mechanism, increase the difficulty of crushing, and make it more difficult to crush the neatly rolled residual film. (2) The gantry shearing mechanism pushes the film rolls section by section to the bottom of the hydraulic shearing machine for shearing, which makes it difficult to perform continuous cutting and has a slow processing efficiency for residual film rolls. Summary of the Invention

[0005] Purpose of the invention: In order to overcome the shortcomings of the existing technology, the present invention provides a method and equipment for recycling and processing residual film at the production site, which has a reasonable process, is beneficial to the service life of equipment, reduces the difficulty of residual film crushing, and allows the obtained material to be fully utilized.

[0006] Technical solution: To achieve the above objectives, the present invention provides a method for processing residual film recycled bundles at the place of origin, the method comprising a cutting process for the residual film bundles, a crushing process for the residual film, and a purification and grading process;

[0007] A rotary screening process is provided between the cutting process and the residual film crushing process.

[0008] By employing the above method, a rotary screening process is set between the cutting process and the residual film crushing process. On the one hand, impurities such as sand, gravel, and soil in the residual film blocks obtained from the cutting process can be initially screened out, preventing them from affecting the crushing operation of the residual film in the subsequent crushing process and extending the life of the equipment performing the residual film crushing process. On the other hand, the rotary screening process allows the residual film blocks to tumble fully, loosening them. This not only fully releases the sand, gravel, and soil but also breaks up the relatively neat structure of the residual film blocks, reducing the difficulty of crushing and facilitating subsequent processing.

[0009] The length of the residual film block obtained after the cutting process is about 30cm. This facilitates the removal of impurities and makes the residual film block looser during the subsequent rotary screening process.

[0010] Furthermore, the impurity removal and grading process classifies the material obtained after the residual film crushing process into three types of materials: sand, gravel, soil and impurities, straw and residual film fragments; the method also includes: summarizing the sand, gravel, soil and impurities obtained from the rotary screening process and the sand, gravel, soil and impurities obtained from the impurity removal and grading process, and sending them to the brick factory as raw materials for brick making.

[0011] Furthermore, the method also includes: packaging and transporting the straw material as a wood-plastic raw material to a wood-plastic factory to produce wood-plastic products.

[0012] Furthermore, the method also includes: packaging and transporting the residual film fragments to a granulation plant to produce recycled granule products.

[0013] A residual film recycling and processing equipment includes a block cutter, a crusher, and a grading and impurity removal machine, which are used to perform the block cutting process, the residual film crushing process, and the grading and impurity removal process, respectively; it also includes a rotary screen placed between the block cutter and the crusher to perform a rotary screening process, wherein the residual film blocks obtained by the block cutter are processed by the rotary screener and then enter the crusher.

[0014] Furthermore, the dicing machine includes a base, a cutting mechanism, and a conveying mechanism; the base has multiple support platforms; the cutting mechanism includes multiple sets of chains and multiple crossbars distributed along the chains, each crossbar connecting all the chains; there is a gap between every two adjacent support platforms, and a set of chains is installed at the position of each gap; each crossbar is fixed with a pushing unit that is the same number as the support platforms and is arranged in a one-to-one correspondence.

[0015] Furthermore, the cutting mechanism includes a lifting seat and a gantry frame; the lifting seat is equipped with a disc cutter and a cutting motor, and the lifting seat can be driven by a hydraulic cylinder to perform lifting movements.

[0016] Furthermore, it also includes a robotic arm for gripping the residual film bundles onto the cutting machine.

[0017] During operation, the robotic arm grabs the residual film bundle and places it above the machine base. The residual film bundle is located between two adjacent crossbars and is supported by each support platform. When the chain runs, the crossbars run and push the residual film bundle to slide on the support platform through the pushing unit, and then pass under the cutting mechanism. The cutting mechanism cuts the residual film bundle into residual film blocks.

[0018] The height of the disc cutter can be changed by raising and lowering the lifting platform relative to the gantry using a hydraulic cylinder. In one method, the height of the disc cutter can be determined based on the thickness of the remaining film bundle, and the disc cutter can be maintained at a fixed height for cutting. In a preferred method, the hydraulic cylinder can adjust its extension and retraction movement in real time based on the real-time position of the crossbars approaching it and the thickness of the remaining film bundle, so that the disc cutter can move up and down regularly to cut the remaining film bundle. This cutting method is more efficient and improves cutting efficiency.

[0019] Furthermore, the crusher includes a feed hopper, a primary crushing mechanism, a secondary crushing structure, and a material outlet arranged sequentially from top to bottom. The crushed material is blown out of the material outlet by airflow. The impurity removal and grading machine includes multiple receiving mechanisms for receiving the material discharged from the material outlet, and the receiving positions of each receiving mechanism are different.

[0020] Furthermore, there are three receiving mechanisms: a first receiving mechanism, a second receiving mechanism, and a third receiving mechanism. The first receiving mechanism is a first material container. The second receiving mechanism includes a first conveyor belt and a first receiving hopper and a second material container located at the beginning and end of the first conveyor belt. The third receiving mechanism includes a second conveyor belt and a second receiving hopper and a third material container located at the beginning and end of the second conveyor belt. The first material container, the first receiving hopper, and the second receiving hopper are arranged sequentially, with the latter being taller than the former.

[0021] Beneficial effects: The method and equipment for processing residual film recycling bundles at the place of origin of the present invention have the following beneficial effects:

[0022] (1) The residual film recycling and processing method and equipment of the present invention, by setting up a rotary screening process, can not only screen out most of the sand, gravel and soil impurities in time to avoid wear on the crushing equipment, but also break up the residual film blocks to reduce the difficulty of crushing the residual film.

[0023] (2) By processing the materials obtained from the rotary screening process and the impurity removal and grading process respectively, the full utilization of various materials can be achieved, and the utilization value of the residual film bundle can be maximized.

[0024] (3) Compared with the cutting machines in the prior art, the cutting machine in the processing equipment of the present invention can cut the residual film bundle into multiple segments at the same time, and can continuously cut the residual film bundle conveyed by the conveying mechanism, thus greatly improving the cutting efficiency. The structural design of the conveying mechanism and the support table fully meets the characteristics of the residual film bundle, enabling the soft residual film bundle to be pushed evenly and cooperate with the cutting operation.

[0025] (4) This invention mainly targets the pretreatment of recycled residual film bundles near the field, and then the processed products are sent to the relevant processing enterprises. This processing method can ensure that the recycled residual film is processed without other waste, and the components are treated in the best way after graded processing to maximize benefits. Moreover, for downstream enterprises, the raw materials can be packaged to reduce transportation costs and storage space, which is reasonable for enterprises to carry out large-scale production and achieve economies of scale. Attached Figure Description

[0026] Figure 1 A flowchart illustrating the on-site processing method for recycled film bundles;

[0027] Figure 2 A schematic diagram of the equipment for processing residual film at the production site;

[0028] Figure 3 This is a front view of the block cutting machine.

[0029] Figure 4 This is a 3D structural diagram of a dicing machine;

[0030] Figure 5 This is a structural diagram of the crusher and the impurity removal and grading machine;

[0031] Figure 6 This is a structural diagram of the primary crushing mechanism;

[0032] Figure 7 This is a structural diagram of the secondary crushing mechanism.

[0033] In the diagram: 1-Cutter; 1A-Base; 1B-Cutting mechanism; 1C-Conveying mechanism; 11-Holding platform; 12-Chain; 13-Crossbar; 14-Pushing unit; 15-Lifting seat; 16-Disc cutter; 17-Cutting motor; 18-Hydraulic cylinder; 19-Gantry frame; 2-Crusher; 21-Feed hopper; 22-Primary crushing mechanism; 221-Baffle plate; 222-Blade; 223-Cutter shaft; 23-Secondary crushing structure; 23 1-Drum; 232-Serrated blade; 233-Fixed blade; 24-Material outlet; 25-Processing box; 3-Impurity removal and grading machine; 31-First receiving mechanism; 32-Second receiving mechanism; 321-First conveyor belt; 322-First receiving hopper; 323-Second material container; 33-Third receiving mechanism; 331-Second conveyor belt; 332-Second receiving hopper; 333-Third material container; 4-Rotary screener; 5-Robot arm. Detailed Implementation

[0034] The invention will now be further described with reference to the accompanying drawings.

[0035] like Figure 1 The method for processing residual film recycled bundles at the production site includes a cutting process, a crushing process, and a grading and impurity removal process for the residual film bundles; a rotary screening process is provided between the cutting process and the crushing process.

[0036] By employing the above method, a rotary screening process is set between the cutting process and the residual film crushing process. On the one hand, impurities such as sand, gravel, and soil in the residual film blocks obtained from the cutting process can be initially screened out, preventing them from affecting the crushing operation of the residual film in the subsequent crushing process and extending the life of the equipment performing the residual film crushing process. On the other hand, the rotary screening process allows the residual film blocks to tumble fully, loosening them. This not only fully releases the sand, gravel, and soil but also breaks up the relatively neat structure of the residual film blocks, reducing the difficulty of crushing and facilitating subsequent processing.

[0037] The length of the residual film block obtained after the cutting process is about 30cm. This facilitates the removal of impurities and makes the residual film block looser during the subsequent rotary screening process.

[0038] It is evident that by setting up a rotary screening process, most of the sand, gravel, and soil debris can be screened out in a timely manner to avoid wear on the crushing equipment, and the residual film blocks can be broken up to reduce the difficulty of crushing the residual film.

[0039] Preferably, the impurity removal and grading process classifies the material obtained after the residual film crushing process into three types of materials: sand, gravel, soil and impurities, straw and residual film fragments. The method further includes: summarizing the sand, gravel, soil and impurities obtained from the rotary screening process and the sand, gravel, soil and impurities obtained from the impurity removal and grading process, and sending them to the brick factory as raw materials for brick making, where they are processed into building brick products.

[0040] Preferably, the method further includes: packaging and transporting the straw material as a wood-plastic composite raw material to a wood-plastic composite factory to produce wood-plastic composite products. Alternatively, the straw material obtained from the rotary screening process and the straw material obtained from the impurity removal and grading process can be combined and packaged together for transportation.

[0041] Preferably, the method further includes: packaging and transporting the residual film fragments to a granulation plant to produce recycled granule products.

[0042] In the above method, by processing the materials obtained from the rotary screening process and the impurity removal and grading process separately, the full utilization of various materials can be achieved, and the utilization value of the residual film bundles can be maximized.

[0043] A type of equipment for recycling and processing residual film at the production site, such as Figure 2 As shown, it includes a block cutter 1, a crusher 2, and a grading and impurity removal machine 3, which are used to perform the block cutting process, the residual film crushing process, and the grading and impurity removal process, respectively; it also includes a rotary screener 4 placed between the block cutter 1 and the crusher 2 to perform a rotary screening process. The residual film blocks obtained by the block cutter 1 are processed by the rotary screener 4 and then enter the crusher 2.

[0044] Preferably, such as Figure 3 and Figure 4 As shown, the dicing machine 1 includes a base 1A, a cutting mechanism 1B, and a conveying mechanism 1C; the base 1A has multiple support platforms 11; the cutting mechanism 1B includes multiple sets of chains 12 and multiple crossbars 13 distributed along the chains 12, each crossbar 13 connecting all the chains 12; there is a gap between every two adjacent support platforms 11, and a set of chains 12 is installed at the position of each gap; each crossbar 13 is fixed with a pushing unit 14 that is the same number as the support platforms 11 and is arranged in a one-to-one correspondence.

[0045] Preferably, the cutting mechanism 1B includes a lifting seat 15 and a gantry frame 19; a disc cutter 16 and a cutting motor 17 are installed on the lifting seat 15, and the lifting seat 15 can be driven by a hydraulic cylinder 18 to perform lifting and lowering movements.

[0046] Preferably, it also includes a robotic arm 5 for gripping the residual film bundles onto the cutting machine 1.

[0047] During operation, the robotic arm 5 grabs the residual film bundle and places it above the machine base 1A. The residual film bundle is located between two adjacent crossbars 13. The residual film bundle is held by each support platform 11. When the chain 12 is running, the crossbars 13 are running and push the residual film bundle on the support platform 11 through the pushing unit 14. It then passes under the cutting mechanism 1B, which cuts the residual film bundle into residual film blocks.

[0048] The height of the disc cutter 16 can be changed by driving the lifting seat 15 to rise and fall relative to the gantry frame 19 with the hydraulic cylinder 18. In one method, the height of the disc cutter 16 can be determined according to the thickness of the residual film bundle, and the disc cutter 16 can be maintained at a fixed height for cutting. In a preferred method, the hydraulic cylinder 18 can adjust its extension and retraction movement in real time according to the real-time position of each crossbar 13 approaching it and the thickness of the residual film bundle, so that the disc cutter 16 can move up and down regularly to cut the residual film bundle. This cutting method is more reasonable and can improve cutting efficiency.

[0049] Compared to existing cutting machines, the cutting machine 1 in the processing equipment of this invention can simultaneously cut residual film bundles into multiple segments, and can continuously cut the residual film bundles conveyed by the conveying mechanism 1C, significantly improving cutting efficiency. The structural design of the conveying mechanism 1C and the support table 11 fully conforms to the characteristics of residual film bundles, enabling the soft residual film bundles to be pushed evenly and cooperate with the cutting operation.

[0050] like Figure 5 As shown, the crusher 2 includes a feed hopper 21, a primary crushing mechanism 22, a secondary crushing structure 23, and a material outlet 24 arranged from top to bottom. The primary crushing mechanism 22 and the secondary crushing structure 23 are both installed in the processing box 25. The crushed material is blown out of the material outlet 24 by airflow. The impurity removal and grading machine 3 includes multiple receiving mechanisms for receiving the material discharged from the material outlet 24. The receiving positions of each receiving mechanism are different.

[0051] Preferably, there are three receiving mechanisms: a first receiving mechanism 31, a second receiving mechanism 32, and a third receiving mechanism 33. The first receiving mechanism 31 is a first material container. The second receiving mechanism 32 includes a first conveyor belt 321 and a first receiving hopper 322 and a second material container 323 located at both ends of the first conveyor belt 321. The third receiving mechanism 33 includes a second conveyor belt 331 and a second receiving hopper 332 and a third material container 333 located at both ends of the second conveyor belt 331. The first material container, the first receiving hopper 322, and the second receiving hopper 332 are arranged sequentially, with the latter being higher than the former. The second conveyor belt 331 is mounted above the first conveyor belt 321.

[0052] In the above structure, such as Figure 6 As shown, the primary crushing mechanism 22 includes a cutter shaft 223 and multiple blades 222 mounted on the cutter shaft, as well as multiple partitions 221 fixed inside the processing box 25. The partitions 221 and the blades 222 are arranged alternately. When the cutter shaft 223 rotates, the blades 222 carry the residual film pieces through the gaps between the partitions 221, thereby initially tearing the residual film. Figure 7 As shown, the secondary crushing mechanism 23 includes a drum 231 with axially arranged serrated blades 232 mounted on it. A fixed blade 233, matching the serrated blades 232, is fixed inside the processing box 25. The serrated blades 232 and the fixed blade 233 work together to further refine the material initially crushed by the primary crushing mechanism 22. Simultaneously, when the drum 231 rotates with multiple sets of circumferentially arranged serrated blades 232, it generates a large airflow that blows the material below out from the material outlet 24. The material outlet 24 has an upwardly inclined guide plate. Heavier soil and impurities enter the first material container, while heavier materials such as straw are blown higher and farther into the first receiving hopper 322, and then transported to the second material container 323 via the first conveyor belt 321. The lightest residual film fragments are blown the highest and farthest, falling into the second receiving hopper 332, and then transported to the third material container 333 via the second conveyor belt 331. This achieves impurity removal and allows soil and straw to be collected separately for convenient transportation.

[0053] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for processing residual film bundles at the production site, the method comprising a cutting process, a crushing process, and a grading and impurity removal process for the residual film bundles, wherein the three processes are performed in a sequential order; characterized in that: A rotary screening process is provided between the cutting process and the residual film crushing process; the length of the residual film block obtained after the cutting process is 30cm; the rotary screening process screens out sand, gravel, soil and impurities from the residual film block obtained from the cutting process to prevent sand, gravel and soil from affecting the crushing operation of the residual film in the subsequent residual film crushing process; on the other hand, the rotary screening process causes the residual film block to tumble, making the residual film block loose. The dicing process is carried out by a dicing machine, which includes a base (1A), a cutting mechanism (1B), and a conveying mechanism (1C). The base (1A) has multiple support platforms (11). The cutting mechanism (1B) includes multiple sets of chains (12) and multiple crossbars (13) distributed along the chains (12). Each crossbar (13) is connected to all the chains (12). There is a gap between every two adjacent support platforms (11), and a set of chains (12) is installed at the position of each gap. Each crossbar (13) is fixed with a pushing unit (14) that is the same number as the support platforms (11) and is arranged one-to-one. The dicing machine includes two sets of cutting mechanisms (1B), and each cutting mechanism (1B) includes a disc cutter (16). The residual film crushing process and the impurity removal and grading process are respectively implemented by the crusher (2) and the impurity removal and grading machine (3); the material after being crushed by the crusher (2) is blown out of the material outlet (24) by the airflow; the impurity removal and grading machine (3) includes multiple receiving mechanisms for receiving the material discharged from the material outlet (24), and the receiving positions of each receiving mechanism are different; The number of receiving mechanisms is three, namely a first receiving mechanism (31), a second receiving mechanism (32), and a third receiving mechanism (33); the first receiving mechanism (31) is a first material container; the second receiving mechanism (32) includes a first conveyor belt (321) and a first receiving hopper (322) and a second material container (323) respectively placed at the beginning and end of the first conveyor belt (321); the third receiving mechanism (33) includes a second conveyor belt (331) and a second receiving hopper (332) and a third material container (333) respectively placed at the beginning and end of the second conveyor belt (331); the first material container, the first receiving hopper (322), and the second receiving hopper (332) are arranged in sequence, and the latter is taller than the former; The material outlet (24) has an upward-sloping guide plate. The heaviest soil and debris in the material enters the first material container, while the second heaviest straw material is blown higher and farther into the first receiving hopper (322) and transported to the second material container (323) via the first conveyor belt (321). The lightest residual film fragments in the material are blown the highest and farthest, fall into the second receiving hopper (332), and are transported to the third material container (333) via the second conveyor belt (331).

2. The method for on-site processing of recycled film bundles according to claim 1, characterized in that, The impurity removal and grading process classifies the material obtained after the residual film crushing process into three types of materials: sand, gravel, soil and impurities, straw and residual film fragments. The method also includes: summarizing the sand, gravel, soil and impurities obtained from the rotary screening process and the sand, gravel, soil and impurities obtained from the impurity removal and grading process, and sending them to the brick factory as raw materials for brick making.

3. The method for on-site processing of recycled film bundles according to claim 2, characterized in that, The method further includes: packaging and transporting the straw material as a wood-plastic raw material to a wood-plastic factory to produce wood-plastic products.

4. The method for on-site processing of recycled film bundles according to claim 2, characterized in that, The method further includes: packaging and transporting residual film fragments to a pelletizing plant to produce recycled pellet products.

5. A residual film recycling and bundling processing equipment for implementing the residual film recycling and bundling processing method of claim 1, comprising a dicing machine (1), a crusher (2), and a de-impurity grading machine (3), respectively used to perform the dicing process, the residual film crushing process, and the de-impurity grading process; characterized in that, It also includes a rotary screen (4) placed between the block cutter (1) and the crusher (2) to carry out the rotary screening process. The residual film blocks obtained by the block cutter (1) are processed by the rotary screen (4) and then enter the crusher (2).

6. The residual film recycling and bundling processing equipment according to claim 5, characterized in that, The dicing machine (1) includes a base (1A), a cutting mechanism (1B), and a conveying mechanism (1C); the base (1A) has multiple support platforms (11); the cutting mechanism (1B) includes multiple sets of chains (12) and multiple crossbars (13) distributed along the chains (12), each crossbar (13) connecting all the chains (12); there is a gap between every two adjacent support platforms (11), and a set of chains (12) is installed at the position of each gap; each crossbar (13) is fixed with a pushing unit (14) that is the same number as the support platforms (11) and is arranged one-to-one.

7. The residual film recycling and bundling processing equipment according to claim 6, characterized in that, It also includes a robotic arm (5) for gripping the residual film bundles onto the cutting machine (1).

8. The residual film recycling and bundling processing equipment according to claim 5, characterized in that, The crusher (2) includes a feed hopper (21), a primary crushing mechanism (22), a secondary crushing structure (23), and a material outlet (24) arranged from top to bottom.

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