JPS642438B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a wind sorting machine for separating non-combustible materials into heavy materials that contain a large amount of renewable valuables and light materials that do not contain any valuables in a garbage treatment plant. Regarding.

A large amount of garbage is generated from households and businesses, and each local government is currently struggling with how to dispose of this garbage. Non-combustible items such as cans are placed in separate garbage bags and collected on separate collection days. Combustible materials are sent directly to incinerators, while non-combustible materials are buried or transported to coastal landfills.

However, some of these nonflammable materials include scrap iron and aluminum cans.
A large amount of valuable materials that can be recycled as resources, such as tin cans and glass, are being thrown away, and the problem is how to make the recovery of these valuable materials more efficient in terms of resource utilization.

The present invention utilizes wind power to dispose of non-combustible materials such as heavy materials containing a large amount of recyclable valuables such as iron scraps and glass, and non-recyclable lightweight materials such as plastic bags and Styrofoam containers. A particular feature of the present invention is that it considers how to recover aluminum cans and tin cans, which have the greatest utility as valuables.

Empty beer cans, aluminum cans for soft drinks, and tin cans are being thrown away in larger quantities than expected and are being included in non-combustible garbage. Empty aluminum cans and tin cans, which are often used as recycled resources, are lightweight, but when they are sorted by the wind using a wind sorter, they are placed on the side where lightweight items such as plastic bags fall. The aluminum cans have to be picked up and sorted by hand to collect them.

The wind sorter in a garbage processing plant of the present invention is particularly characterized in recovering aluminum cans, and has the function of pulling aluminum cans that have been blown away by the wind toward the lighter items back toward the heavier items. be.

Next, the device of the present invention will be explained with reference to the attached drawings.
The figure shows a cross-sectional view of a wind sorter,
A indicates a sorting tank. This sorting tank A has tanks A at the front and back.
It has side walls 7, 7' that are inclined inward, a chevron-shaped partition D is provided in the center of the tank A, and a top plate 1 is provided at the top.
1 so that the wind is sent from the direction of the side wall 7 to the top and bottom. The front side of the partition D is a heavy object fall port B, and the opposite side is a light object fall port C. At the top of the partition D, there are many rollers 5, 5 that are always rotating forward as shown by the arrows. are arranged in parallel at intervals,
Its tip is extended so as to reach the upper part of the light object drop port C, and a feed plate 6 is provided below this part.
The two-stage air outlet that sends out air from the side wall 7 is the upper air outlet 3.
The wind ports are oriented horizontally so that the wind blows out horizontally, and the wind ports 4 on the lower stage are turned upward so that the wind blows upward. A projecting plate 8, 8' is provided above each air outlet 3, 4. The air vents 3 and 4 are connected by an air passage 2 outside the tank A, and air is sent from the blower 1 at the base. 13 is a non-combustible garbage input port,
The numeral 9 above the input port 13 is a conveyor for feeding non-combustible waste, and it is placed at the top of the sloping side wall 7. On the other hand, there is a wind outlet at the back of the sorting tank A, which is connected to the cyclone S outside the tank. Although not shown, the cyclone S is connected to the blower 1 by an air passage and circulates, and the pressure is reduced from above the blower 1 by the dust remover 10, so that the pressure inside the sorting tank A is always negative than atmospheric pressure. It's in the atmosphere.

The non-combustible garbage wind sorter of the present invention has the above-mentioned structure, so to explain its operation, the upper conveyor 9
The non-combustible garbage sent from the side wall 7 rolls down the upper slope of the side wall 7, hits the veneer 8, and is once thrown up. Then, due to the horizontal wind force from the wind vent 3 below this veneer 8, light garbage, such as plastic bags, etc.
The pieces of the Styrofoam container are blown away into the direction of the light object drop port C, and the remaining garbage is further dumped onto the side wall 7.
The lightweight garbage rolls in the opposite direction, hits the veneer 8' again, is thrown up, and is blown away by the upward wind from the air outlet 4 below, and falls toward the lightweight object drop opening C. Therefore, the remaining heavy objects fall into the heavy object drop port B, and valuable materials such as iron scraps and glass are recovered from the heavy objects.

However, among the non-flammable materials that are blown forward as lightweight items, there are aluminum cans and tin cans mixed in with plastic bags and foamed plastic waste.

In the device of the present invention, the rollers 5, 5, etc. arranged above the partition D catch the empty cans that are blown toward the lightweight object, and catch the unnecessary plastic bags that mistakenly fall toward the lightweight object. These were to be sent to the light object side, and were lined up in large numbers at intervals of about 7 to 8 cm with a slight inclination toward the front, extending from the end of the heavy object drop port B to above the light object drop port C. A feed plate 6 is provided on the lower surface of the portion that covers the light object drop opening. The rollers are constantly rotating forward (toward the lightweight object drop port C side) as shown by the arrows in the figure. Therefore, empty cans that fall on the lightweight side are once caught on the rollers and rolled forward by the rotation of the rollers, but there is a gap of 7 to 8 cm between the rollers that allows the cans to fall. falls and hits the lower feed plate 6 and is returned to the heavy object drop port B side. On the other hand, plastic bags and the like that are stuck to the heavy object drop port are sequentially sent by the rotation of the rollers and fall to the light object drop port.

Since this device is equipped with a cyclone and a dust remover, there is no environmental pollution, and since the inside of the treatment tank A is kept at negative air pressure, garbage can be quickly sorted.

The garbage wind sorter of the present invention can easily separate heavy items containing a large amount of valuable materials from unnecessary materials such as plastic bags that are simply sent to a landfill.
It has the unique ability to collect valuable materials only from the garbage that has been sorted by heavy objects, and can reliably capture aluminum cans and youth tin cans, which are attracting particular attention as useful resources. ,
We believe that it is particularly effective in large-scale garbage treatment plants in local governments, etc., and that it is valuable as a chain of resources.

[Brief explanation of drawings]

FIG. 1 shows a cross-sectional view of a wind sorter in a waste treatment plant. A...Sorting treatment tank, B...Heavy object drop port, C...
...Light object drop port, 1...Blower, 2...Wind path,
3, 4... Wind outlet, 5... Rotating roller, 6
...Feeding plate, 7,7'...Slanted side wall, 8,8'...
Veneer, 11...Top plate.

Claims (1)

[Claims] 1 In the wind sorting machine, the sorting tank A has front and rear side walls 7, 7' that are formed to be inclined inward in the sorting tank A.
The tank A is composed of a chevron-shaped partition D at the center of the bottom and a top plate 11, and a non-combustible waste inlet 13 is provided above the side wall 7, and the front side of the partition D of the tank A is a heavy object drop port C.
A large number of rollers 5, 5 which are constantly rotating forward are arranged in parallel at intervals on the upper part of the chevron-shaped partition D, and this row of rollers is extended to the upper part of the light object drop port c. Air outlets 3 and 4 are provided in two stages at the top and bottom of the front side wall, with the upper outlet 3 blowing air horizontally and the lower outlet 4 blowing air horizontally.
The tank A is formed so that the air is blown upward, projecting plates 8 and 8' are provided above the other air outlet, and a wind outlet is provided at the rear of the tank A to create a negative air pressure inside the entire tank A. A wind sorter at a waste treatment plant.