Method and equipment for treating plastic film residue recycling and bundling materials in producing area

Abstract

The invention discloses a method and equipment for treating a residual film recycling bundle material in a production place. The method comprises a process of dicing the residual film bundle material, a process of crushing the residual film and a process of removing impurities and grading. And a rotary screening treatment process is arranged between the dicing process and the residual film crushing process. The equipment comprises a dicing machine, a crusher and an impurity removing and grading machine which are respectively used for executing a dicing process, a residual film crushing process and an impurity removing and grading process; the rotary screening machine is arranged between the dicer and the crusher and is used for implementing a rotary screening treatment procedure. Through the arrangement of the rotary screening treatment procedure, most of gravel, soil and impurities can be screened out in time to avoid abrasion to crushing equipment, and the residual film blocks can be scattered to reduce the crushing difficulty of the residual films. Materials obtained in the rotary screening treatment procedure and the impurity removing and grading procedure are treated respectively, full utilization of various materials can be achieved, and the utilization value of the residual film bundle material is maximized.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural residual film recovery, and in particular to a method and equipment for processing residual film recovery bale materials at a production site. Background Art

[0002] Ground film is an important agricultural production material. my country's annual ground film usage is about 1.4 million tons, covering an area of ​​nearly 300 million mu, accounting for about 90% of the global film-covered area. The soil of farmland covered with ground film is contaminated to varying degrees by ground film residues. The average residue per mu of farmland nationwide is about 4.5 kilograms, which seriously restricts the effective control of ground film residue pollution in cultivated land and the green and low-carbon development of agriculture.

[0003] After recycling, the ground film is usually transported directly to the processing enterprises without processing, which takes up a lot of space, is high in finished product transportation, is difficult to handle impurities, and has low overall economic benefits. At present, the new residual film recycling machine bundles the recovered residual film to reduce its volume, and the processing enterprises need to further handle the broken bales, which increases the processing cost. Therefore, it is necessary to pre-process the residual film bales to save costs.

[0004] In the prior art, patent CN 113878758 A discloses a waste agricultural mulch film regeneration and processing 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 dehydration 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 mulch film into smaller sizes, and then feeding it into the crushing mechanism through a feeding transmission device. The gantry shearing mechanism includes a conveying roller, a pushing device and a gantry hydraulic shearing machine. During operation, the mulch film roll is flush with the conveying direction of the conveying roller. The pushing device pushes the mulch film roll section by section to the bottom of the hydraulic shearing machine, and the shearing machine cuts the mulch film roll into multiple sections. This patent has the following problems: (1) After the mulch film segments obtained by the segmenting mechanism enter the crushing mechanism for crushing and then perform impurity separation and other operations, on the one hand, the straw impurities therein become difficult to separate after being crushed, and on the other hand, many of the sand, gravel and soil impurities therein will affect the life of the cutter in the crushing mechanism, increase the difficulty of damage, and make it more difficult to crush the residual film rolled together in a regular manner. (2) The gantry shearing mechanism pushes the ground film roll section by section under the hydraulic shearing machine for shearing, which makes it difficult to perform continuous cutting and has a slow processing efficiency for the residual film roll. Summary of the invention

[0005] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a method and equipment for processing residual film recovery bales at the production site, which has a reasonable process, is beneficial to the life of the equipment, reduces the difficulty of residual film crushing, and enables the obtained materials to be fully utilized.

[0006] Technical solution: To achieve the above-mentioned purpose, the present invention provides a method for processing the residual film recycling bale material at the production site, the method comprising a process of cutting the residual film bale material into pieces, a process of crushing the residual film, and a process of removing impurities and grading;

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

[0008] By adopting 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 in the cutting process can be preliminarily screened out to prevent the sand, gravel and soil from affecting the crushing operation of the residual film in the subsequent residual film crushing process, and the life of the equipment implementing the residual film crushing process can be improved; on the other hand, the residual film blocks can be fully rolled during the rotary screening process to loosen the residual film blocks, which can not only fully release the sand, gravel and soil, but also break the relatively neat structure of the residual film blocks, reduce the difficulty of crushing, and be more conducive to the subsequent process.

[0009] The length of the residual film block obtained after the cutting process is about 30 cm. In this way, in the subsequent rotary screening process, it is helpful to screen out impurities and to loosen the residual film block.

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

[0011] Furthermore, the method further comprises: packaging the straw material as a wood-plastic raw material and transporting it to a wood-plastic factory to make a wood-plastic product.

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

[0013] A processing equipment for residual film recycling bale materials at the production site, comprising a block cutter, a crusher and a de-impurity classifier, which are respectively used to perform a block cutting process, a residual film crushing process and a de-impurity classifier process; and also includes a rotary screening machine placed between the block cutter and the crusher to implement a rotary screening processing process. The residual film blocks cut by the block cutter are processed by the rotary screening machine and then enter the crusher.

[0014] Furthermore, the block cutter includes a machine base, a cutting mechanism and a conveying mechanism; the machine base is provided with a plurality of supporting platforms; the cutting mechanism includes a plurality of groups of chains and a plurality of cross bars distributed along the chains, and each of the cross bars connects all of the chains; there is a gap between every two adjacent supporting platforms, and a group of the chains is installed at the position of each gap; and each of the cross bars is fixed with a pushing unit whose number is consistent with the number of the supporting platforms and which is arranged one-to-one.

[0015] Furthermore, the cutting mechanism comprises a lifting seat and a gantry; a disc cutter and a cutting motor are installed on the lifting seat, and the lifting seat can be driven by a cylinder to perform lifting movement.

[0016] Furthermore, it also includes a robot arm for grabbing the residual film bundle to the cutting machine.

[0017] During operation, the robot grabs the residual film bale and puts it on the top of the machine base, and the residual film bale is located between two adjacent cross bars. The residual film bale is supported by each supporting platform. When the chain is running, the cross bar runs and pushes the residual film bale to slide on the supporting platform through the pushing unit, and passes under the cutting mechanism. The cutting mechanism cuts the residual film bale and cuts the residual film bale into residual film blocks.

[0018] The height of the disc cutter can be changed by driving the lifting seat to rise and fall relative to the gantry frame through the oil cylinder. In one method, the height of the disc cutter can be determined according to the thickness of the residual film bundle, and the disc cutter can be maintained at a fixed height for cutting. In a preferred method, the oil cylinder can adjust the telescopic movement of the oil cylinder in real time according to the real-time position of each crossbar approaching it and the thickness of the residual film bundle, so that the disc cutter can regularly rise and fall to cut the residual film bundle, so that the cutting is more reasonable and the cutting efficiency can be improved.

[0019] Furthermore, the crusher includes a feeding hopper, a primary crushing mechanism, a secondary crushing structure and a material outlet arranged in sequence from top to bottom, and the broken material is blown out of the material outlet by airflow; the impurity removal and classifying machine includes a plurality of material receiving mechanisms for receiving the material discharged from the material outlet, and the material receiving positions of each of the material receiving mechanisms are different.

[0020] Furthermore, the number of the material receiving mechanisms is three, namely the first material receiving mechanism, the second material receiving mechanism and the third material receiving mechanism; the first material receiving mechanism is a first material container; the second material receiving mechanism includes a first conveyor belt and a first material receiving hopper and a second material container respectively disposed at both ends of the first conveyor belt; the third material receiving mechanism includes a second conveyor belt and a second material receiving hopper and a third material container respectively disposed at both ends of the second conveyor belt; the first material container, the first material receiving hopper and the second material receiving hopper are arranged in sequence front to back, and the latter is higher than the former.

[0021] Beneficial effects: The residual film recovery and bundling processing method and equipment of the present invention have the following beneficial effects:

[0022] (1) The method and equipment for processing the residual film recovery bundles at the production site of the present invention can not only timely screen out most of the sand, gravel and dirt to avoid wear on the crushing equipment, but also break up the residual film blocks to reduce the difficulty of crushing the residual film by setting a rotary screening process.

[0023] (2) By processing the materials obtained from the rotary screening process and the impurity removal and classification process separately, it is possible to fully utilize various materials and maximize the utilization value of the residual film bales.

[0024] (3) Compared with the prior art, the block cutter in the processing equipment of the present invention can cut the residual film bales into multiple sections at the same time, and can cut the residual film bales conveyed by the conveying mechanism continuously and uninterruptedly, which greatly improves the block cutting efficiency. The structural design of the conveying mechanism and the supporting platform fully meets the characteristics of the residual film bales, and can make the soft residual film bales be evenly pushed and cooperate with the cutting operation.

[0025] (4) The present invention mainly pre-treats the recycled residual film bundles near the fields, and then sends the processed products to relevant processing enterprises. This processing method can make the recycled residual film free of other waste after production processing, and the best processing method can be obtained after classification processing of each component to maximize the benefits. In addition, the packaging of raw materials for downstream enterprises can reduce transportation costs and storage space, which is reasonable for enterprises to scale production and achieve scale benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the process of processing the residual film recovery bale material at the production site;

[0027] Figure 2 This is a schematic diagram of the composition of the residual film recovery and bale material processing equipment at the production site;

[0028] Figure 3 This is a front view structural diagram of the block cutter;

[0029] Figure 4 The three-dimensional structure diagram of the block cutting machine;

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

[0031] Figure 6 This is the structural diagram of the first-level crushing mechanism;

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

[0033] In the figure: 1-block cutter; 1A-machine base; 1B-cutting mechanism; 1C-conveying mechanism; 11-supporting platform; 12-chain; 13-crossbar; 14-pushing unit; 15-lifting seat; 16-disc cutter; 17-cutting motor; 18-oil cylinder; 19-gantry; 2-crusher; 21-feeding hopper; 22-primary crushing mechanism; 221-partition plate; 222-blade; 223-knife shaft; 23-secondary crushing structure; 23 1-drum; 232-serrated blade; 233-fixed blade; 24-material outlet; 25-processing box; 3-impurity removal and classification machine; 31-first material receiving mechanism; 32-second material receiving mechanism; 321-first conveyor belt; 322-first material receiving hopper; 323-second material container; 33-third material receiving mechanism; 331-second conveyor belt; 332-second material receiving hopper; 333-third material container; 4-rotary screening machine; 5-manipulator. DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with the accompanying drawings.

[0035] like Figure 1 The method for processing the residual film recycling bales at the production site shown includes a process of cutting the residual film bales, a process of crushing the residual film, and a process of removing impurities and grading; a rotary screening process is arranged between the cutting process and the residual film crushing process.

[0036] By adopting 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 in the cutting process can be preliminarily screened out to prevent the sand, gravel and soil from affecting the crushing operation of the residual film in the subsequent residual film crushing process, and the life of the equipment implementing the residual film crushing process can be improved; on the other hand, the residual film blocks can be fully rolled during the rotary screening process to loosen the residual film blocks, which can not only fully release the sand, gravel and soil, but also break the relatively neat structure of the residual film blocks, reduce the difficulty of crushing, and be more conducive to the subsequent process.

[0037] The length of the residual film block obtained after the cutting process is about 30 cm. In this way, in the subsequent rotary screening process, it is helpful to screen out impurities and to loosen the residual film block.

[0038] It can be seen that by setting up the rotary screening process, most of the sand, gravel and soil can be screened out in time 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 classification process classifies the materials obtained after the residual film crushing process into three types of materials: sand, gravel and soil materials, straw materials and residual film fragment materials; the method also includes: summarizing the sand, gravel and soil materials obtained by the rotary screening process and the sand, gravel and soil materials obtained by the impurity removal and classification process, and sending them to a brick-making factory as brick-making raw materials, and processing them into building brick products by the brick-making factory.

[0040] Preferably, the method further comprises: packaging and transporting the straw material as a wood-plastic raw material to a wood-plastic factory to make a wood-plastic product. Here, the straw material obtained in the rotary screening process and the straw material obtained in the impurity removal and classification process can also be combined and packaged and transported together.

[0041] Preferably, the method further comprises: packaging the residual film fragments and transporting them 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 classification process respectively, it is possible to fully utilize various materials and maximize the utilization value of the residual film bales.

[0043] A residual film recovery and bale material processing equipment, such as Figure 2 As shown, it includes a block cutter 1, a crusher 2 and a de-impurity classifier 3, which are respectively used to perform a block cutting process, a residual film crushing process and a de-impurity classifier process; it also includes a rotary screening machine 4 placed between the block cutter 1 and the crusher 2 to implement a rotary screening process. The residual film blocks cut by the block cutter 1 are processed by the rotary screening machine 4 and then enter the crusher 2.

[0044] Preferably, if Figure 3 and Figure 4 As shown, the block cutter 1 includes a base 1A, a cutting mechanism 1B and a conveying mechanism 1C; the base 1A is provided with a plurality of supporting platforms 11; the cutting mechanism 1B includes a plurality of chains 12 and a plurality of cross bars 13 distributed along the chains 12, and each of the cross bars 13 connects all of the chains 12; there is a gap between every two adjacent supporting platforms 11, and a group of the chains 12 is installed at the position of each gap; each of the cross bars 13 is fixed with a pushing unit 14 which is the same in number as the supporting platforms 11 and is arranged one-to-one.

[0045] Preferably, the cutting mechanism 1B comprises a lifting seat 15 and a gantry 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 cylinder 18 to perform lifting motion.

[0046] Preferably, it also includes a robot 5 for grabbing the residual film bundle to the cutter 1.

[0047] During operation, the robot 5 grabs the residual film bale and puts it above the machine base 1A, and the residual film bale is located between two adjacent cross bars 13. The residual film bale is supported by each supporting platform 11. When the chain 12 is running, the cross bar 13 runs and pushes the residual film bale to slide on the supporting platform 11 through the pushing unit 14, and passes under the cutting mechanism 1B. The cutting mechanism 1B cuts the residual film bale and cuts the residual film bale 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 19 through the oil 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 oil cylinder 18 can adjust the telescopic movement of the oil cylinder 18 in real time according to the real-time position of each cross bar 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, so that the cutting is more reasonable and the cutting efficiency can be improved.

[0049] Compared with the block cutter in the prior art, the block cutter 1 in the processing equipment of the present invention can cut the residual film bales into multiple sections at the same time, and can cut the residual film bales conveyed by the conveying mechanism 1C continuously and uninterruptedly, and the block cutting efficiency is greatly improved. The structural design of the conveying mechanism 1C and the supporting platform 11 fully meets the characteristics of the residual film bales, and can make the soft residual film bales be evenly pushed and cooperate with the cutting operation.

[0050] like Figure 5 As shown, the crusher 2 includes a feeding hopper 21, a primary crushing mechanism 22, a secondary crushing structure 23 and a material outlet 24 which are arranged in sequence from top to bottom. The primary crushing mechanism 22 and the secondary crushing structure 23 are both installed in a processing box 25, and the broken materials are blown out of the material outlet 24 by air flow; the impurity removal and classifying machine 3 includes a plurality of material receiving mechanisms for receiving the materials discharged from the material outlet 24, and the material receiving positions of each of the material receiving mechanisms are different.

[0051] Preferably, the number of the material receiving mechanisms is three, namely the first material receiving mechanism 31, the second material receiving mechanism 32 and the third material receiving mechanism 33; the first material receiving mechanism 31 is a first material container; the second material receiving mechanism 32 includes a first conveyor belt 321 and a first material receiving hopper 322 and a second material container 323 respectively disposed at both ends of the first conveyor belt 321; the third material receiving mechanism 33 includes a second conveyor belt 331 and a second material receiving hopper 332 and a third material container 333 respectively disposed at both ends of the second conveyor belt 331; the first material container, the first material receiving hopper 322 and the second material receiving hopper 332 are arranged in sequence front to back, and the latter is higher than the former. The second conveyor belt 331 is erected above the first conveyor belt 321.

[0052] In the above structure, if Figure 6 As shown, the primary crushing mechanism 22 includes a knife shaft 223 and a plurality of blades 222 mounted on the knife shaft, and also includes a plurality of partitions 221 fixed in the processing box 25. The partitions 221 and the blades 222 are arranged in a staggered manner. When the knife shaft 223 rotates, the blades 222 carry the residual film blocks through the gaps between the partitions 221, thereby preliminarily tearing the residual film into pieces; Figure 7 As shown, the secondary crushing mechanism 23 includes a drum 231, on which a sawtooth blade 232 arranged in an axial manner is installed, and a fixed blade 233 arranged in cooperation with the sawtooth blade 232 is fixed in the processing box 25. The sawtooth blade 232 cooperates with the fixed blade 233 to further refine and crush the material initially crushed by the primary crushing mechanism 22. At the same time, when the drum 231 is running with multiple groups of sawtooth blades 232 arranged in a circumferential array, a large airflow can be generated to blow the material below out from the material outlet 24. The material outlet 24 has an upwardly inclined guide inclined plate. The heavier dirt in the material enters the first material container, and the less heavy materials such as straw are blown higher and farther into the first receiving hopper 322, and are 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. In this way, the impurity removal operation is realized, and the dirt and straw are collected separately, which is convenient for separate transportation.

[0053] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for processing residual film recycling bales at the production site, the method comprising a process of cutting the residual film bales, a process of crushing the residual film, and a process of removing impurities and grading; characterized in that: A rotary screening process is provided between the cutting process and the residual film crushing process.

2. The method for processing the residual film recovery bale material at the production site according to claim 1, characterized in that: The impurity removal and classification process classifies the materials obtained after the residual film crushing process into three types of materials: sand, gravel and soil materials, straw materials and residual film fragment materials; the method also includes: summarizing the sand, gravel and soil materials obtained by the rotary screening process and the sand, gravel and soil materials obtained by the impurity removal and classification process, and sending them to a brick-making factory as brick-making raw materials.

3. The method for processing the residual film recovery bale material at the production site according to claim 2, characterized in that: The method further comprises: packaging the straw material as a wood-plastic raw material and transporting it to a wood-plastic factory to make a wood-plastic product.

4. The method for processing the residual film recovery bale material at the production site according to claim 2, characterized in that: The method further comprises: packaging the residual film fragments and transporting them to a granulation plant to produce recycled granule products.

5. A residual film recycling and bundling processing equipment, comprising a block cutter (1), a crusher (2) and a de-impurity classifier (3), which are used to perform a block cutter, a residual film crusher and a de-impurity classifier, respectively; characterized in that: It also includes a rotary screening machine (4) placed between the block cutter (1) and the crusher (2) to implement a rotary screening process. The residual film blocks cut by the block cutter (1) are processed by the rotary screening machine (4) and then enter the crusher (2).

6. The residual film recovery and bale material processing equipment according to claim 5 is characterized in that: The block cutting machine (1) comprises a machine base (1A), a cutting mechanism (1B) and a conveying mechanism (1C); the machine base (1A) is provided with a plurality of supporting platforms (11); the cutting mechanism (1B) comprises a plurality of chains (12) and a plurality of cross bars (13) distributed along the chains (12), each of the cross bars (13) connecting all the chains (12); there is a gap between every two adjacent supporting platforms (11), and a group of the chains (12) is installed at the position of each gap; each of the cross bars (13) is fixed with a pushing unit (14) whose number is the same as the number of the supporting platforms (11) and which is arranged one-to-one.

7. The residual film recovery and bale processing equipment according to claim 6 is characterized in that: The cutting mechanism (1B) comprises a lifting seat (15) and a gantry (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 an oil cylinder (18) to perform lifting motion.

8. The residual film recovery and bale processing equipment according to claim 6 is characterized in that: It also includes a robot (5) for grabbing the residual film bundle and bringing it to the block cutter (1).

9. The residual film recovery and bale material processing equipment according to claim 1 is characterized in that: The crusher (2) comprises a feeding hopper (21), a primary crushing mechanism (22), a secondary crushing structure (23) and a material outlet (24) arranged in sequence from top to bottom, and the broken materials are blown out of the material outlet (24) by air flow; the impurity removal classifier (3) comprises a plurality of material receiving mechanisms for receiving the materials discharged from the material outlet (24), and the material receiving positions of the material receiving mechanisms are different.

10. The residual film recovery and bale material processing equipment according to claim 9, characterized in that: The number of the material receiving mechanisms is three, namely a first material receiving mechanism (31), a second material receiving mechanism (32) and a third material receiving mechanism (33); the first material receiving mechanism (31) is a first material container; the second material receiving mechanism (32) comprises a first conveyor belt (321) and a first material receiving hopper (322) and a second material container (323) respectively disposed at both ends of the first conveyor belt (321); the third material receiving mechanism (33) comprises a second conveyor belt (331) and a second material receiving hopper (332) and a third material container (333) respectively disposed at both ends of the second conveyor belt (331); the first material container, the first material receiving hopper (322) and the second material receiving hopper (332) are arranged in sequence front to back, and the latter is higher than the former.

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