Pretreatment device for waste film

Abstract

The utility model discloses a waste film pretreatment device which comprises a transversely-arranged cleaning roller, spiral blades are fixed to the inner wall of the cleaning roller, a plurality of gaps are formed in the roller wall of the cleaning roller in the axial direction, and the cleaning roller is driven by a driving subassembly to rotate. A water spraying system is fixed at the upper end in the cleaning roller; a wastewater tank is arranged at the lower end of the cleaning roller; the device further comprises a roller line which is arranged on the outlet side of the cleaning roller, and a pressing roller is arranged at the upper end of the roller line. A shifting roller is arranged at the feeding front end of the roller line, a shifting fork is installed on the shifting roller, and the shifting roller is driven by a motor to rotate. According to the utility model, small gravel blocks, soil blocks and large stone blocks mingled in the waste membrane can be respectively filtered, so that the filtration is more thorough, and meanwhile, water in the cleaned and filtered waste gas is removed, so that the next treatment is facilitated.

Description

Technical Field

[0001] This utility model relates to a pretreatment device for waste membranes, belonging to the field of waste membrane pretreatment technology. Background Technology

[0002] Mulch film, also known as ground cover film, is typically a transparent or black PE film, though green and silver films are also available. It is used to cover the ground to increase soil temperature, retain soil moisture, maintain soil structure, prevent pests from attacking crops and diseases caused by certain microorganisms, and promote plant growth. Waste mulch film left in the field is difficult to degrade, affecting crop growth, making its recycling essential. Currently, there are three main methods for recycling waste mulch film: recycling and reuse, resource utilization, and calorific value utilization. In recycling and reuse, waste mulch film is processed through washing, cutting, extrusion, and granulation to produce recycled plastic granules for use in manufacturing new mulch film.

[0003] Chinese utility model patent CN217454554U discloses a pretreatment device for preparing recycled materials from waste plastic film. Through the transmission action of a rotating wheel and a belt, two bevel gears can mesh to realize the rotation operation of the feed blades, agitating and conveying the plastic film. Through the setting of water spray head, the spray head will spray the plastic film to achieve the cleaning effect of the plastic film during processing. Through the rotation of the stirring rod, the plastic film is stirred and crushed to realize the crushing processing operation of the plastic film.

[0004] However, the above-mentioned patented technology has the following problems in practical application: some stones and soil clods are inevitably present in the waste plastic film, which cannot be crushed by the stirring rod; more importantly, the stones and bumps are of different sizes, especially the stones of different sizes, which cannot be dissolved in water, and large stones cannot be removed by the filter screen.

[0005] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0006] This utility model addresses the shortcomings of the prior art by providing a pretreatment device for waste membranes, which can filter out small pieces of sand and soil, as well as large stones, trapped in the waste membranes, making the filtration more thorough. At the same time, it removes moisture from the waste gas after cleaning and filtration, facilitating further processing.

[0007] To solve the above technical problems, the present invention adopts the following technical solution:

[0008] A waste membrane pretreatment device includes a horizontally arranged cleaning drum, with spiral blades fixed on the inner wall of the cleaning drum. Multiple slits are provided axially on the drum wall of the cleaning drum, and the cleaning drum rotates under the drive of a drive unit.

[0009] A water spray system is fixed at the upper end of the cleaning drum, and a wastewater tank is provided at the lower end of the cleaning drum.

[0010] It also includes a roller conveyor, which is located on the outlet side of the cleaning roller. The upper end of the roller conveyor is equipped with a pressure roller. The feed front end of the roller conveyor is equipped with a shift roller, which is equipped with a shift fork. The shift roller rotates under the drive of a motor.

[0011] Furthermore, a conveyor line is provided between the cleaning drum and the drum line, with the front end of the conveyor line connected to the outlet of the cleaning drum and the rear end of the conveyor line connected to the feed front end of the drum line.

[0012] Furthermore, the roller is located at the rear end of the conveyor line, and there is a certain gap between the rear end of the conveyor line and the front end of the roller line.

[0013] Furthermore, baffles are provided on both sides of the conveyor line and the roller conveyor.

[0014] Furthermore, an impurity trough is provided on the lower side of the gap between the rear end of the conveyor line and the front end of the roller line feed.

[0015] Furthermore, the sidewall of the cleaning drum is composed of multiple angle irons arranged in combination, with gaps formed between the angle irons, and end caps fixed at both ends of the angle irons.

[0016] Furthermore, the water spraying system includes a ring-shaped water pipe with multiple nozzles arranged at its lower end.

[0017] Furthermore, the drive assembly includes a gear ring fixed to the outer wall of the cleaning drum, which meshes with a gear to drive the gear through a drive motor; a circular track is also fixed to the outer wall of the cleaning drum, which cooperates with the roller.

[0018] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0019] Small pieces of sand and pebbles mixed in with the waste film flow from the gaps in the washing drum into the wastewater tank, while larger stones are discharged from the washing drum along with the waste film onto the conveyor line. The waste film is then pushed from the conveyor line to the feed front of the roller conveyor by the pusher rollers, and the larger stones are discharged through the gap between the conveyor line and the roller conveyor. On the roller conveyor, the waste film is squeezed by the pressure rollers to expel the water from the waste film, preparing it for further processing.

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the cleaning drum structure;

[0023] Figure 3 This is a cross-sectional view of the cleaning drum.

[0024] In the picture,

[0025] 1-Cleaning roller, 101-Angle iron, 102-End cap, 2-Gear ring, 3-Gear, 4-Drive motor, 5-Annular water pipe, 6-Spiral blade, 7-Spray head, 8-Railway, 9-Roller, 10-Conveyor line, 11-Baffle, 12-Pulling roller, 13-Roller line, 14-Pressure roller, 15-Wastewater tank, 16-Impurity tank, 17-Support frame. Detailed Implementation

[0026] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0027] like Figure 1-3 As shown, this utility model provides a pretreatment device for waste membrane, including a horizontally arranged cleaning drum 1, a spiral blade 6 fixed on the inner wall of the cleaning drum 1, and multiple slits along the axial direction on the drum wall of the cleaning drum 1. The cleaning drum 1 rotates under the drive of the driving unit.

[0028] A water spraying system is fixed at the upper end of the cleaning drum 1 to spray water into the cleaning drum 1, and a wastewater tank 15 is provided at the lower end of the cleaning drum 1.

[0029] This utility model also includes a roller conveyor 13, which is disposed on the outlet side of the cleaning drum 1. A pressure roller 14 is provided at the upper end of the roller conveyor 13. A deflector roller 12 is provided at the feed front end of the roller conveyor 13, and a deflector fork is installed on the deflector roller 12. The deflector roller 12 rotates under the drive of a motor (not shown in the figure). The waste film discharged from the outlet of the cleaning drum 1 is deflected onto the roller conveyor 13 by the deflector roller 12 and conveyed forward with the roller conveyor 13. During the conveying process, the pressure roller 14 squeezes out the water mixed in with the waste film.

[0030] Furthermore, a conveyor line 10 is provided between the cleaning roller 1 and the roller line 13. The front end of the conveyor line 10 is connected to the outlet of the cleaning roller 1, and the rear end of the conveyor line 10 is connected to the feed front end of the roller line 13.

[0031] The pusher roller 12 is located at the rear end of the conveyor line 10, and there is a certain gap between the rear end of the conveyor line 10 and the front end of the roller line 13. Small pieces of sand and gravel are discharged from the gap of the washing roller 1, while larger stones are discharged from the washing roller 1 along with the waste film onto the conveyor line 10. The waste film is pushed from the conveyor line 10 to the front end of the roller line 13 by the pusher roller 12, and the larger stones are discharged through the gap between the conveyor line 10 and the roller line 13.

[0032] Both sides of the conveyor line 10 and the roller line 13 are equipped with baffles 11 to block waste film.

[0033] An impurity trough 16 is provided on the lower side of the gap between the rear end of the conveyor line 10 and the front end of the roller line 13 for holding large impurities.

[0034] The side wall of the cleaning drum 1 is composed of multiple angle irons 101 arranged together, with gaps formed between the angle irons 101, and end caps 102 fixed at both ends of the angle irons 101.

[0035] The water spraying system includes an annular water pipe 5, with multiple nozzles 7 arranged at the lower end of the annular water pipe 5. The annular water pipe 5, the shift roller 12, and the pressure roller 14 are all fixedly mounted on the support frame 17.

[0036] The drive assembly includes a gear ring 2 fixed to the outer wall of the cleaning drum 1. The gear ring 2 meshes with a gear 3 for transmission, driving the gear 3 through a drive motor 4. A circular track 8 is also fixed to the outer wall of the cleaning drum 1, and the track 8 cooperates with a roller 9.

[0037] The specific working principle of this utility model:

[0038] Waste film is placed into the feed inlet of washing drum 1. Inside washing drum 1, the waste film is washed and conveyed forward. Small pieces of sand and pebbles mixed in with the waste film flow through the gaps to the wastewater tank 15, while larger stones are discharged from washing drum 1 along with the waste film onto conveyor line 10. The waste film is then pushed from conveyor line 10 to the feed front end of roller line 13 by push roller 12. Larger stones are discharged through the gap between conveyor line 10 and roller line 13. On roller line 13, the waste film is squeezed by pressure roller 14 to expel water, preparing it for further processing.

[0039] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A waste film pre-treatment apparatus characterized by: It includes a horizontally arranged cleaning drum (1), with a spiral blade (6) fixed on the inner wall of the cleaning drum (1), and multiple slits provided along the axial direction on the drum wall of the cleaning drum (1). The cleaning drum (1) rotates under the drive of the driving unit. A water spraying system is fixed at the upper end of the cleaning drum (1), and a wastewater tank (15) is provided at the lower end of the cleaning drum (1). It also includes a roller line (13), which is located on the outlet side of the cleaning roller (1). The upper end of the roller line (13) is provided with a pressure roller (14). The feed front end of the roller line (13) is provided with a pusher roller (12), which is equipped with a pusher fork. The pusher roller (12) rotates under the drive of a motor.

2. A waste film pre-treatment apparatus as claimed in claim 1, characterized in that: A conveyor line (10) is provided between the cleaning drum (1) and the drum line (13). The front end of the conveyor line (10) is connected to the outlet of the cleaning drum (1), and the rear end of the conveyor line (10) is connected to the feed front end of the drum line (13).

3. A waste film pre-treatment apparatus as claimed in claim 2, characterized in that: The roller (12) is located at the rear end of the conveyor line (10), and there is a certain gap between the rear end of the conveyor line (10) and the front end of the roller line (13).

4. A waste film pre-treatment apparatus as claimed in claim 3, characterized in that: Both sides of the conveyor line (10) and the roller line (13) are equipped with baffles (11).

5. A waste film pre-treatment apparatus as claimed in claim 3, characterized in that: An impurity trough (16) is provided on the lower side of the gap between the rear end of the conveyor line (10) and the front end of the roller line (13).

6. A waste film pre-treatment apparatus as claimed in claim 1, characterized in that: The side wall of the cleaning drum (1) is composed of multiple angle irons (101) arranged together, with gaps formed between the angle irons (101), and end caps (102) fixed at both ends of the angle irons (101).

7. A waste film pre-treatment apparatus as claimed in claim 1, characterized in that: The water spraying system includes a ring-shaped water pipe (5), and multiple nozzles (7) are arranged at the lower end of the ring-shaped water pipe (5).

8. The waste film pre-treatment apparatus of claim 1, wherein: The drive assembly includes a gear ring (2) fixed on the outer wall of the cleaning drum (1), which meshes with a gear (3) to drive the gear (3) through a drive motor (4); a circular track (8) is also fixed on the outer wall of the cleaning drum (1), which cooperates with a roller (9).

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