JPH0511135Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to a bag removing device that continuously separates the contents contained in a bag.

(Conventional technology) Generally, when cultivating nameko mushrooms and maitake mushrooms, a fungal bed is created by filling plastic bags such as vinyl or polyethylene with sawdust or rice bran. ) and produce mushrooms.

Once the mushrooms have been harvested, the fungus bed is separated from the plastic bag and reused as compost for vegetable cultivation, or it is sometimes left alone in the forest for disposal.

For pollution reasons, plastic bags must be removed and separated from their contents, whether they are to be recycled as compost or disposed of.

Generally, the number of used mushroom beds released and disposed of at a time by mushroom cultivation facilities ranges from several thousand to tens of thousands of bags.
That's enough for one or two tons of regular trucks.

Conventionally, such a large amount of bacterial beds were released by manually removing the plastic bags and separating them, which had the drawback of extremely poor workability and high processing costs.

(Problems to be solved by the invention) The present invention eliminates the above-mentioned drawbacks, continuously crushes a large amount of bag contents, efficiently and automatically separates the contents from the bag, and improves workability. The purpose of the present invention is to provide a bag removing device with improved performance.

[Structure of the invention] (Means for solving the problem) The present invention has two crushing drums each having crushing blades protruding from their circumferential surfaces arranged horizontally on the bottom side of the hopper with a gap between them. The crushing drum is connected to a motor so that the crushing blades pass through the gap from above to below, and a bag separation drum formed into a cylindrical mesh is installed horizontally below the crushing drum so that it can rotate freely. The device is characterized in that stirring blades are provided inside the bag separation drum on the bag carrying-in side to support the bag separation drum and to rotate in the opposite direction to the rotational direction of the bag separation drum.

(effect) Next, the operation of the present invention will be explained.

When the motor is rotated, rotational force is transmitted, and the two parallel crushing drums rotate in opposite directions so that the protruding crushing blades pass through the gap from above to below, and the bags are The separation drum also rotates.

In this state, when the bagged bacterial bed from which the mushrooms have been removed is put into the hopper, it is drawn into the gap by the rotation of the crushing blades of both crushing drums.

At this time, the bagged bacterial bed is crushed by the crushing blade protruding in the gap, and the bacterial bed is crushed and pushed out of the bag and falls. In this state, the bags with some of the bacterial beds remaining inside also fall downward and are transported to the bag separation drum arranged laterally.

A stirring blade that rotates in the opposite direction to the bag separation drum is installed inside the bag separation drum on the bag carry-in side.
The dropped bags are thrown up by the stirring blades and hit strongly against the mesh on the inner circumferential surface of the bag separation drum, which is rotating in the opposite direction. The remaining bacterial bed is discharged.

Further, after being strongly struck by the stirring blade against the mesh on the inner peripheral surface of the bag separation drum, the bags and the crushed bacterial bed are moved while rotating within the rotating bag separation drum and are sieved by the mesh.

As the bag is rotated several times in this state, the remaining clumps of the bacterial bed are finely pulverized, and the bacterial bed remaining in the bag is also completely discharged and falls from the mesh, emptying it. The bag, which has become lighter, is discharged from the outlet of the bag separation drum and is continuously separated from the crushed bacterial bed.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to FIGS. 1 and 2.

In the figure, reference numeral 1 denotes a hopper, and at the bottom of the hopper 1, crushing drums 2A and 2B are arranged laterally with a gap 3 provided therebetween.

The crushing drums 2A and 2B have an outer diameter of 100 to 200 mm.
Plate-shaped crushing blades 4 having a height of 15 to 40 mm are arranged in 4 to 6 equal parts and protrude from the outer periphery in parallel with the axis.

A receiving tank 5 having a U-shaped cross section is arranged below the grinding drums 2A, 2B, and a screw conveyor 6 is provided therein.

A bag separation drum 7 is rotatably supported at the opening of the receiving tank 5 on a drive wheel 8 and a support wheel 9 with a slight inclination.

This bag separation drum 7 is formed into a cylindrical shape with a mesh 10 connected with round rods, and the mesh size is
Approximately 50 to 80 mm is preferable.

Furthermore, a ring-shaped weir plate 11 is attached to the carry-in side of the inner circumferential wall of the bag separation drum 7, and a spiral guide plate 12 is attached to the discharge port 21 side.

Further, a rectangular frame-shaped stirring blade 13 is connected to the tip of the screw conveyor 6, protruding from the center inside the bag separation drum 7 on the bag carry-in side.
The rotation direction of this stirring blade 13 is determined by the rotation direction of the bag separation drum 7.
It's starting to rotate in the opposite direction.

14 is a motor attached to the lower part of the receiving tank 5, and the rotational force of this motor 14 is transmitted to the grinding drums 2A, 2B, the screw conveyor 6, and the drive wheel 8 via gears 15... and a chain 16. It is becoming more and more like this.

Also, from the crushing drum 2A to the adjacent crushing drum 2
B is connected to a gear 15... by a chain 16 on the bag separation drum 7 side, rotates in the opposite direction, and changes the gear ratio so that the peripheral speed of rotation of the crushing drum 2A is 0.5 to 0.7 m/s. The rotation peripheral speed of the other crushing drum 2B is set to be 0.05 to 0.1 m/s.

In the figure, 17 is a carry-out conveyor installed below the bag separation drum 7, 18 is a plastic bag,
19 is a fungal bed made of sawdust, etc., and 20 is a bagged fungal bed.

Next, the operation of the above device will be explained.

First, when the motor 14 and the unloading conveyor 17 are rotated, the rotational force is transmitted by the gear 15 and the chain 16, and as shown by the arrow, the crushing drums 2A,
2B rotate in opposite directions to each other so that the protruding crushing blades 4 pass through the gap 3 from above to below.

At the same time, the screw conveyor 6 and the stirring blade 13 connected to its tip rotate, and the bag separation drum 7 rotates in the opposite direction due to the rotation of the drive wheel 8.

In this state, the diameter after removing the mushrooms is 80~
When a bagged bacterial bed 20 with a size of 120 mm and a height of 80 to 160 mm is put into the hopper 1, both crushing drums 2
There is a difference in rotational circumferential speed between A and 2B, and the crushing blade 4
It is drawn into the gap 3 by the rotation of.

At this time, the bagged bacterial bed 20 is crushed by the crushing blades 4 protruding from the gap 3, and the bacterial bed 19 is crushed and pushed out from the plastic bag 18.
It falls into the receiving tank 5. In this state, a part of the crushed bacterial bed 19 remains in the plastic bag 18, and is conveyed to the front side by a screw conveyor 6 provided in the receiving tank 5.

The bags 18 and the crushed bacterial bed 19 that have been conveyed to the bag separation drum 7 are thrown away by the stirring blade 13 attached to the tip of the screw conveyor 6, as shown in FIG. 1, and then rotated in the opposite direction. The bacterial bed that has formed into a lump by being struck by the mesh 10 of the bag separating drum 7 is finely crushed, and the bacterial bed remaining in the bag is discharged. The bag separation drum 7 further rotates and sieves the finely pulverized bacterial bed 19, which falls downward and is discharged to the outside by a discharge conveyor 17.

A ring-shaped weir plate 1 is provided on the inner peripheral wall of the bag separation drum 7.
1 is attached, the large, heavy bacterial bed 19 and the plastic bag 18 in which the bacterial bed 19 remains are rotated in close contact with the inner wall surface due to centrifugal force and are dammed by the dam plate 11. , outlet 21
It continues to rotate while being prevented from moving to the side.

While rotating several times in this state, the large bacterial bed 19 is finely pulverized, and the bacterial bed 19 remaining in the bag 18 is also discharged and falls from the mesh 10.

As a result, the lightened plastic bag 18 moves over the ring-shaped weir plate 11, is guided by the spiral guide plate 12 to the discharge port 21, and falls from there.

Note that the bagged bacterial bed 20 is small and the crushing drum 2
Even if the bag is not sufficiently crushed in A or 2B and falls into the receiving tank 5 while being crushed, it will be crushed and separated in the bag separation drum 7 as it continues to rotate. Bag separation drum 7 for 11
Since the residual time inside the bag will be longer, the bagged bacterial bed 20
The gap 3 between the crushing drums 2A and 2B may be set according to the size of the crushing drums 2A and 2B, or the gap 3 may be movably attached so that the gap 3 can be adjusted.

The fungal bed 19 thus finely separated is carried out by a carrying conveyor 17 and reused as compost, and the separated plastic bags 18 are incinerated all at once.

Note that the shape of the crushing blade 4 is not limited to a continuous plate shape, but can also be a shape that does not tear the plastic bag 18 into small pieces, such as one with short plates arranged in a staggered manner, or one with many piece-like protrusions protruding. Anything is fine as long as it is.

Further, in the above embodiment, the crushing drums 2A and 2B are installed horizontally, but they may be installed at different levels.

Further, in the above embodiment, the screw conveyor 6 is provided inside the receiving tank 5, but a structure may be adopted in which a shooter is used in place of the receiving tank 5 and the bags are fed into the bag separating drum 7 by sliding the screw conveyor 6 therein.

Furthermore, instead of the mesh 10 constituting the bag separation drum 7, a perforated plate such as a perforated plate may be used. Further, the bag separation drum 7 is not limited to a cylindrical shape, but may be a rectangular tube shape.

[Effects of the invention] As explained above, according to the invention, the contents of a large amount of bags can be continuously crushed and the contents and bags can be automatically separated to improve work efficiency, especially for mushroom cultivation. This is effective for processing used bagged bacterial beds from facilities.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view of a bag removing device according to an embodiment of the present invention, and FIG. 2 is a front view in which the main parts of FIG. 1 are cut away. 1...Hopper, 2A, 2B...Crushing drum,
3...Gap portion, 4...Crushing blade, 5...Receiving tank, 6...
...Screw conveyor, 7...Bag separation drum, 8
...Drive wheel, 9...Support wheel, 10...Meshyu,
11... Weir plate, 12... Guide plate, 13... Stirring blade, 14... Motor, 15... Gear, 16...
Chain, 17...Export conveyor, 18...Plastic bag, 19...Bacteria bed, 20...Bag bed, 21...Discharge port.

Claims (1)

[Scope of utility model registration request] Two crushing drums with crushing blades protruding from the periphery are arranged horizontally on the bottom side of the hopper with a gap between them.
The crushing drum is connected to a motor so that the crushing blades pass through the gap from above to below, and a bag separating drum formed into a cylindrical mesh is installed laterally below the crushing drum and rotated. What is claimed is: 1. A bag removing device, which is freely supported and is provided with an agitating blade that rotates in the opposite direction to the rotational direction of the bag separating drum on the inside of the bag carrying-in side of the bag separating drum.