JPH025150B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Industrial Application Field The present invention is designed to extract lightweight materials such as waste materials that can be reused from waste mixed with heavy materials such as concrete, lightweight materials such as waste materials, and small materials such as earth and sand. It is used in the field of sorting things.

(b) Conventional technology Generally, waste materials include heavy materials such as concrete, etc.
There is waste that is a mixture of lightweight items such as scrap wood and small items such as earth and sand.

However, in the past, the waste was used as it was as a material for landfill, so there was no effective use of lightweight materials such as reusable waste materials.

(c) Problems to be Solved by the Invention The present invention solves the above-mentioned problems by installing a plurality of drums having a plurality of circumferential flanges in parallel in an upwardly facing state, and removing waste from the waste. This allows only lightweight items to be taken out in front of the drum.

(d) Means for Solving the Problems The present invention provides a plurality of rotatably supported drums arranged in parallel in the front-rear direction, and each of the drums has projections and depressions alternately on the outer periphery. In a rotary sieve machine, in which a plurality of circumferential flanges each having a star shape as a whole are attached at appropriate intervals, and each circumferential flanges forms a sieve mesh, adjacent circumferential flanges in the same drum are The protrusions and recesses of the drums are arranged so that they alternate, and each of the drums is rotated in the same direction, and the rotational speed of the front drum is sequentially increased, and as it moves further forward, it is sequentially positioned upward. A charging chute is provided above the rear part of the drum so that heavy items in the waste can be sorted at the rear of the drum, light items at the front of the drum, and small items at the bottom of the screen. This relates to a rotary sieve machine.

(e) Example An example will be described below with reference to the drawings. Reference numeral 1 denotes a pedestal tilted upward, and a plurality of drums 3 having shafts 2 at both ends are provided in parallel on the pedestal 1. Drum 3...The front is raised as a whole.

On the outer surface of the drum 3, there is a protrusion 4 on the outer periphery.
A plurality of circumferential flanges 6 having a star shape as a whole and alternately having recessed portions 5 and so on are attached at appropriate intervals. Adjacent circumferential collars 6 on the same drum 3
In the case of . . . , the protruding portions 4 . . . and the recessed portions 5 .

Also, each circumferential collar 6 of the opposing drums 3 forms sieve meshes 7.

Each of the shafts 2 of the drums 3 is provided with a sprocket 8, and a chain 9 is routed between the sprockets 8 and the frame 1.
A motor 10 provided at the rear end drives each drum 3...
is rotated in the direction of the arrow in FIG. 1, and the number of rotations of the front drum 3 gradually increases.

At the rear upper part of the plurality of drums 3... there is a charging chute 1 for guiding the waste onto the drums 3...
1 is provided.

A rear hopper 12 is provided at the rear lower part of the plurality of drums 3 to accommodate heavy objects such as concrete, and a front hopper 13 is provided at the front lower part to accommodate lighter objects such as larger waste materials. sieve mesh 7
...A central hopper 14 for storing small objects such as earth and sand is provided below.

The present invention has the above-mentioned structure, and the operation thereof will be explained next. First, waste containing a mixture of heavy, light, and small items is transferred to the drum 3 through the input chute 11.
...Transfer upward.

Among the transported waste, heavy objects fall toward the rear of the drums 3 and are stored in the rear hopper 12 because the plurality of drums 3 are all inclined upwards.

On the other hand, light objects are sequentially transferred forward by the projections 4 of the circumferential collar 6 and stored in the front hopper 13.

During the above-mentioned transfer, small pieces of mixed earth and sand and waste materials pass through the sieve mesh 7 and are transferred to the central hopper 1.
It is accommodated in 4.

Light materials such as waste materials sorted in this way are free of impurities and can be efficiently reused.

Incidentally, during the sorting, the rotational speed of the front drum 3 is increased, and the protrusions 4 and recesses 5 of adjacent circumferential flanges 6 within the same drum 3 are alternated. This arrangement ensures that the waste is loosened as it is transported, and any impurities entangled in the waste are removed.

(f) Effects of the Invention As described above, the present invention has a plurality of drums with circumferential flanges raised forward, and the charging chute faces the rear of the drum, so that heavy, light, and small objects can be Light objects such as waste materials can be reliably sorted out from mixed waste materials, and reuse can be carried out efficiently.

In addition, the protrusions and depressions of adjacent circumferential flanges within the same drum are arranged alternately, and the rotational speed of the front drum is made to increase sequentially, so that the waste is loosened at the same time as it is transferred, and the waste is not separated from the waste. Impurities found can be removed reliably.

[Brief explanation of drawings]

FIG. 1 is an overall view, FIG. 2 is a top view, and FIG. 3 is an enlarged sectional view taken along line A-A in FIG. 3 is a drum, 4 is a projection, 5 is a recess, 6 is a circumferential collar, 7 is a sieve, and 11 is a chute for charging.

Claims (1)

[Claims] 1 A plurality of rotatably supported drums are provided in parallel in the front-rear direction, and each drum is provided with a circumferential collar having a star-shaped overall shape and having protrusions and depressions alternately on the outer periphery at appropriate intervals. In a rotary sieve machine in which a plurality of circumferential flanges are provided and each of the circumferential flanges is attached to form a sieve mesh, the protrusions and depressions of adjacent circumferential flanges within the same drum are arranged alternately. Each of the drums is rotated in the same direction, and the rotational speed of the front drum is sequentially increased, and furthermore, the drum is positioned sequentially upward toward the front, and a charging chute is provided above the rear of the drum. A rotary sieve machine characterized in that heavy items in waste can be sorted at the rear of the drum, light items at the front of the drum, and small items at the bottom of the screen.