Crushing device for recycling mulching film

Abstract

The utility model relates to a crushing device for recycling mulching films, which comprises a machine frame, a machine body, an upper-stage crushing roller group, a lower-stage crushing roller group, two groups of driving devices, an induced draft fan and a dust remover, and the upper-stage crushing roller group and the lower-stage crushing roller group are respectively in driving connection with the two groups of driving devices. Each of the upper-stage crushing roller group and the lower-stage crushing roller group comprises two crushing rollers which are arranged in parallel, and the upper-stage crushing roller group and the lower-stage crushing roller group are staggered up and down to form a cross shape and are mounted in the machine body. Aiming at the characteristics that a mulching film is made of plastic, has certain elasticity and is sheet-shaped, the mulching film is torn and cut in a staggered manner through the upper-stage crushing roller group, the lower-stage crushing roller group and the plurality of cutting knives, so that the mulching film is crushed into fragments, and the crushing efficiency of the mulching film is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste ground film recycling equipment, and in particular relates to a crushing device for ground film recycling. Background Art

[0002] Ground film is usually made of plastic and used for ground covering to increase soil temperature, maintain soil moisture, maintain soil structure, prevent pests from attacking crops and diseases caused by certain microorganisms, etc., and has the function of promoting plant growth. However, after the crops are harvested, the ground film remaining in the soil is difficult to degrade. If it is left in the soil for a long time, it will cause pollution and damage to the soil. If the content of plasticizers in the soil is too high, the crops planted will also be harmful to humans and animals. Therefore, it is necessary to recycle and utilize the waste ground film. However, most of the ground film is made of plastic, which is large in size and has a certain elasticity. It is not easy to pack, transport and store. In addition, there are sand, grass and other impurities on the waste ground film, which is not conducive to recycling and subsequent processing and use. Therefore, a device that can break the ground film into fragments is needed. The plastic ground film has a certain elasticity and is in a flaky shape, so as to facilitate packaging and transportation during recycling. Utility Model Content

[0003] The utility model aims to solve the deficiencies of the prior art and provide a crushing device for recovering ground film.

[0004] The utility model is realized by the following technical solutions:

[0005] A crushing device for recycling ground film, comprising a frame, a body, an upper crushing roller group, a lower crushing roller group, two sets of driving devices, an induced draft fan and a dust collector, wherein the body is mounted on the frame by welding, a feed port is provided on the top of the body, a discharge port is provided on the bottom of the body, the discharge port is in a trapezoidal structure and the front and rear sides are narrowed downward, the upper crushing roller group and the lower crushing roller group are respectively connected to the two sets of driving devices, the upper crushing roller group and the lower crushing roller group each comprise two crushing rollers arranged in parallel, the upper crushing roller group and the lower crushing roller group are connected to the upper crushing roller group and the lower crushing roller group. The crushing roller group is staggered up and down in a cross shape and installed inside the machine body. The crushing roller is provided with a plurality of cutting knives. The ground film is staggered by the crushing rollers staggered up and down and the cutting knives on the crushing rollers to improve the crushing efficiency. The induced draft fan is connected to one side of the discharge port through a pipeline, and the air outlet of the induced draft fan is connected to the dust collector through a pipeline. The dust generated when the ground film is crushed is sucked away by the induced draft fan, so as to achieve the purpose of pre-dust removal of the ground film. The power of the induced draft fan can be adjusted. By adjusting the power of the induced draft fan, the ground film fragments can be prevented from being adsorbed at the interface between the induced draft fan and the discharge port.

[0006] Furthermore, each set of driving devices includes two driven wheels, a transmission wheel, a driving wheel, a reducer and a crushing motor. The driven wheel is fixedly connected to one end of the machine body extending from the central axis of the crushing roller. The two driven wheels are respectively connected to the transmission wheel through belts, the transmission wheel is connected to the driving wheel through a belt, and the driving wheel is connected to the reducer and the crushing motor in turn through a shaft coupling. When the transmission wheel rotates, it drives the two driven wheels to rotate in the same direction, so that the opposite sides of the two parallel crushing rollers rotate alternately to tear and cut the ground film.

[0007] Furthermore, a plurality of pressing rollers are provided on both sides of the inner part of the discharge port. Since the ground film has certain elasticity and a large volume, the ground film is squeezed by the pressing rollers to reduce its volume, thereby preventing the ground film from blocking the feed port.

[0008] Furthermore, a filter screen is provided at the interface between the induced draft fan and the discharge port to prevent the ground film fragments from being sucked into the induced draft fan.

[0009] Compared with the prior art, the utility model has the following beneficial effects: 1. The utility model provides a device specially used for crushing and recycling waste mulch film. In view of the fact that the mulch film is made of plastic, has a certain elasticity and is in the form of sheets, the mulch film is torn and cut in an alternating manner by means of upper and lower crushing roller groups and a plurality of cutting knives, so that it is broken into pieces, thereby improving the crushing efficiency of the mulch film. At the same time, the soil, grass and other impurities contaminated on the mulch film are also cut into pieces, so that they fall off the mulch film, which is beneficial to the subsequent packaging, recycling and processing of the mulch film; 2. The utility model uses an induced draft fan to absorb the dust generated when the mulch film is crushed, thereby reducing the dust and fine impurities on the mulch film fragments, and achieving the purpose of pre-dust removal of the mulch film; 3. The utility model arranges a pressure roller at the feed inlet to compress and reduce the volume of the mulch film entering, thereby preventing the mulch film from blocking the feed inlet, and thereby ensuring the stable operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is the front view of the utility model;

[0011] Figure 2 It is a right view of the utility model;

[0012] In the figure: 1-frame, 2-induced draft fan, 3-dust collector, 4-machine body, 5-crushing roller, 6-cutting knife, 7-upper crushing roller group, 8-feeding port, 9-pressing roller, 10-driven wheel, 11-reducer, 12-crushing motor, 13-transmission wheel, 14-filter screen, 15-lower crushing roller group, 16-driving wheel, 17-discharging port. DETAILED DESCRIPTION

[0013] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but the protection scope of the present invention is not limited by the embodiments. Example 1

[0014] like Figure 1 and 2 As shown: a crushing device for recycling ground film, including a frame 1, a body 4, an upper crushing roller group 7, a lower crushing roller group 15, two groups of driving devices, an induced draft fan 2 and a dust collector 3, the body 4 is installed on the frame 1 by welding, the top of the body 4 is provided with a feed port 8, the bottom of the body 4 is provided with a discharge port 17, the discharge port 17 is a trapezoidal structure and the front and rear sides are narrowed downward, the upper crushing roller group 7 and the lower crushing roller group 15 are respectively connected to the two groups of driving devices, the upper crushing roller group 7 and the lower crushing roller group 15 each include two crushing rollers 5 arranged in parallel, the upper crushing roller group 7 The lower crushing roller group 15 is staggered up and down and installed in a cross shape inside the body 4. The crushing roller 5 is provided with a plurality of cutting knives 6. The ground film is staggered by the crushing rollers 5 staggered up and down and the cutting knives 6 on the crushing rollers 5 to improve the crushing efficiency. The induced draft fan 2 is connected to one side of the discharge port 17 through a pipeline, and the air outlet of the induced draft fan 2 is connected to the dust collector 3 through a pipeline. The dust generated when the ground film is crushed is sucked away by the induced draft fan 2 to achieve the purpose of pre-dust removal of the ground film. The power of the induced draft fan 2 can be adjusted. By adjusting the power of the induced draft fan 2, the ground film fragments can be prevented from being adsorbed at the interface between the induced draft fan 2 and the discharge port 17.

[0015] Furthermore, each set of driving devices includes two driven wheels 10, a transmission wheel 13, a driving wheel 16, a reducer 11 and a crushing motor 12. The driven wheel 10 is fixedly connected to one end of the central axis of the crushing roller 5 extending out of the body 4. The two driven wheels 10 are respectively connected to the transmission wheel 13 through belts, and the transmission wheel 13 is connected to the driving wheel 16 through a belt. The driving wheel 16 is connected to the reducer 11 and the crushing motor 12 in turn through a shaft coupling. When the transmission wheel 13 rotates, it drives the two driven wheels 10 to rotate in the same direction, so that the opposite sides of the two parallel crushing rollers 5 rotate alternately to tear and cut the ground film.

[0016] Furthermore, a plurality of pressing rollers 9 are provided on both sides of the discharge port 17 . Since the ground film has certain elasticity and a large volume, the ground film is squeezed by the pressing rollers 9 to reduce its volume, thereby preventing the ground film from blocking the feed port 8 .

[0017] Furthermore, a filter screen 14 is provided at the interface between the induced draft fan 2 and the discharge port 17 to prevent the film fragments from being sucked into the induced draft fan 2 .

[0018] During specific use, the waste mulch is put into the machine body 4 from the feed port 8. If the volume of the mulch is large, it can be cut into small pieces in advance and then put into the machine body 4. The crushing motor 12 and the induced draft fan 2 are started. The crushing motor 12 drives the driving wheel 16 to rotate through the reducer 11. The driving wheel 16 is transmitted through the transmission wheel 13 to drive the driven wheel 10 to rotate. The driven wheel 10 drives the crushing roller 5 to rotate. The two crushing rollers 5 of the same crushing roller group rotate in the same direction, and the opposite sides rotate alternately to tear and cut the mulch through the cutting knife 6. The upper crushing roller group 7 and the lower crushing roller group 15 rotate alternately up and down to cut the mulch, so that the mulch is broken. After the mulch is broken into pieces, it falls to the discharge port 17. In the process of falling, the suction force of the induced draft fan 2 sucks away the dust on the fragments and the dust generated during the crushing, and intercepts the mulch fragments through the filter net 14, so that the mulch fragments fall from the discharge port 17.

Claims

1. A crushing device for recycling ground film, comprising a frame (1), a body (4), an upper crushing roller group (7), a lower crushing roller group (15), two sets of driving devices, an induced draft fan (2) and a dust collector (3), wherein the body (4) is mounted on the frame (1), a feed inlet (8) is provided at the top of the body (4), a discharge outlet (17) is provided at the bottom of the body (4), the upper crushing roller group (7) and the lower crushing roller group (15) are respectively connected to the two sets of driving devices, and characterized in that: The upper crushing roller group (7) and the lower crushing roller group (15) each include two crushing rollers (5) arranged in parallel. The upper crushing roller group (7) and the lower crushing roller group (15) are installed inside the machine body (4) in a cross-shaped manner in an upper and lower staggered manner. A plurality of cutting knives (6) are provided on the crushing rollers (5). The induced draft fan (2) is connected to one side of the discharge port (17) through a pipeline, and the air outlet of the induced draft fan (2) is connected to the dust collector (3) through a pipeline.

2. A crushing device for recovering ground film according to claim 1, characterized in that: Each set of driving devices comprises two driven wheels (10), a transmission wheel (13), a driving wheel (16), a speed reducer (11) and a crushing motor (12); the driven wheel (10) is fixedly connected to one end of the central axis of the crushing roller (5) extending out of the machine body (4); the two driven wheels (10) are respectively connected to the driving wheel (13) through belts; the driving wheel (13) is connected to the driving wheel (16) through a belt; and the driving wheel (16) is connected to the crushing motor (12) through the speed reducer (11).

3. A crushing device for recovering ground film according to claim 1, characterized in that: A plurality of pressing rollers (9) are provided on both sides of the inside of the discharge port (17).

4. A crushing device for recovering ground film according to claim 1, characterized in that: A filter screen (14) is provided at the interface between the induced draft fan (2) and the discharge port (17).

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