JPH04267977A - Waste refuse sorting apparatus - Google Patents

Abstract

PURPOSE:To easily sort heavy matter and light matter by forming a suction chamber to the under surface of a belt provided with a large number of holes and moving the light matter in the state sucked to the belt by the suction force from the suction chamber. CONSTITUTION:A belt 7 movable upwardly is trained over front and rear rollers 5,6 in an inclined state and a large number of holes 9 are formed to the belt 7. A cover 12 is provided to the under surface of the belt 7 at the position where waste refuse is supplied to the belt 7 to form the suction chamber 13 opposed to the belt 7. When waste is supplied to a belt conveyor 1, heavy matter moves downwardly on the belt 7 and light matter moves upwardly with the movement of the belt 7 in the state sucked to the surface of the belt 7 by the suction force from the suction chamber 13. Further, the dust generated when the waste is supplied to the belt conveyor 1 is sucked in the suction chamber 13 through the holes 9 of the belt 7. By this constitution, the heavy and light matters can be certainly sorted.

Description

[Detailed description of the invention]

0001

FIELD OF INDUSTRIAL APPLICATION The present invention is used in the field of a sorting device for separating heavy objects such as bottles from light objects such as paper.

0002

[Prior Art] A belt conveyor in which an endless belt is wound between rollers in an inclined state is moved upward, and waste containing a mixture of heavy and light materials is placed at an intermediate position of the belt conveyor. The sorting work is carried out by moving light objects upwards by friction with the belt and moving heavy objects downwards by their own weight.

0003

[Problems to be Solved by the Invention] However, with the above structure, if the inclination of the belt conveyor is made too loose, the frictional force with the belt will overcome and the heavy object will be moved upward. If the condition is too steep, the weight of the object will overcome the frictional force with the belt, making it difficult to move the lightweight object upwards, so selecting the angle of inclination has been extremely difficult. Furthermore, if the installation location is restricted by another device, there is a problem in that it is impossible to install the device at an inclined angle that allows the sorting work to be performed reliably. Another problem is that when the waste is fed onto the belt conveyor, dust in the waste is scattered around.

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problems, and provides a sorting device that can be used in any inclined state by providing a belt with a large number of holes and sucking waste from the bottom side of the belt. It is something.

[0005]

[Means for Solving the Problems] The present invention provides a belt that is stretched between front and rear rollers in an inclined manner and is movable upward, and has a large number of holes formed in the belt to dispose of the belt. A cover is provided on the lower surface of the belt at a position where objects are fed onto the belt to form a suction chamber facing the belt, and a suction device is connected to the suction chamber via piping. It is.

[0006]

[Operation] When waste is supplied to the center of the belt conveyor, the heavy object moves downward under its own weight in the opposite direction to the direction of movement of the belt. The lightweight object is attracted to the belt surface by suction from the suction chamber and moves upward in the belt movement direction. Further, dust generated when being fed to the belt conveyor is sucked into the suction chamber through holes in the belt.

[0007]

[Embodiment] An embodiment of the present invention will be explained with reference to the drawings. Reference numeral 1 denotes a belt conveyor provided in an inclined manner, and the belt conveyor 1 collects bottles, cans, and rubble among the wastes supplied from the supply conveyor 2. Heavy objects 3 such as paper and vinyl sheets are sorted downward, and light objects 4 such as paper and vinyl sheets are sorted upward.

The belt conveyor 1 includes a rear roller 5, a front roller 6 located diagonally above the rear roller 5, and both rollers 5, 6.
It consists of an endless belt 7 and an auxiliary roller 8, which are stretched between them. The belt 7 has a plurality of holes 9 formed therein. The holes 9 have a shape that allows dust to pass through but not waste. The auxiliary roller 8 is located on the lower surface of the belt 7 located above.
A steep slope 10 is formed between the rear roller 5 and the auxiliary roller 8.
A gently sloped portion 11 is formed between the front roller 6 and the front roller 6 at a slope angle that allows the belt 7 to move sufficiently upward by the frictional force with the belt 7. The front roller 6 is appropriately rotated by a drive source, so that the belt 7 can be moved in the direction of the arrow in FIG.

The steep slope section 10 and the supply conveyor 2
A cover 12 is provided on the lower surface of the belt 7 facing the belt 7, and the cover 12 and the belt 7 form a suction chamber 13. A sealing member 14 made of rubber or the like is attached to the outer peripheral edge of the cover 12 to improve sealing performance with the belt 7 and to allow the belt 7 to move smoothly. A suction port 15 is provided in the center of the cover 12, and the suction port 1
A pipe 16 extends from 5 and is connected to an exhaust fan 17 that performs a suction action. A cyclone 18 is installed in the middle of the pipe 16.
A filter 19 is provided on the discharge side of the exhaust fan 17,
Dust is removed by a cyclone 18 and a filter 19 to prevent the dust from scattering into the atmosphere.

Reference numeral 20 denotes a magnetic separator provided on the rear roller 5, and the magnetic separator 20 separates a non-metal 21 such as a bottle from a metal 22 such as a can among the heavy objects 3 that have moved downward. It has become. In addition, in the embodiment, a steeply sloped part and a gently sloped part are provided, but the entire part may be made into a steeply sloped part. In that case, the same effect can be obtained by expanding the suction chamber forward. It is something that you have. The presence or absence and arrangement of the waiting cyclone and filter can be arbitrarily selected.

[0011] The present invention has the above-mentioned structure. Next, the operation will be explained. The waste carried by the supply conveyor 2 is supplied to the center of the belt conveyor 1. Among the supplied wastes, the heavy objects 3 move downward on the opposite side to the moving direction of the belt 7 because their own weight overcomes the suction force by the exhaust fan 17. The heavy object 3 that has moved downward is moved to the rear roller 5
The magnetic separator located at
1 and metals 22 such as cans.

On the other hand, among the supplied waste, light materials 4 such as paper are attracted to the surface of the belt 7 by the suction force from the suction chamber 13 by the exhaust fan 17, and in this state, the light materials 4 such as paper are drawn to the surface of the belt 7.
0 upward, which is the moving direction of the belt 7, and after moving to the gently sloped part 11, it moves forward due to the frictional force with the belt 7. Moreover, the dust in the waste is also sucked through the holes 9 of the belt 7 by the suction force from the suction chamber 13, and the sucked dust is removed by the cyclone 18 and the filter 17.

[0013]

Effects of the Invention As described above, the present invention provides a belt with a plurality of holes, a suction chamber is formed on the lower surface of the belt, and the suction force from the suction chamber is used to move lightweight objects while being attracted to the belt side. This makes it possible to reliably sort heavy items from lightweight items. Furthermore, since the inclination angle can be selected arbitrarily, it can be installed in restricted areas without interfering with the sorting work. Furthermore, since dust can also be sucked in, it is possible to prevent dust from scattering around.

[Brief explanation of the drawing]

FIG. 1 is an overall view.

FIG. 2 is a partially enlarged perspective view of a belt conveyor.

[Explanation of symbols]

1 Belt conveyor 5 Rear roller 6 Front roller 7 Belt 9 holes 12 Cover 17　Exhaust fan

Claims (1)

[Claims] 1. A belt is provided in an inclined manner and is stretched between front and rear rollers, and the belt is movable upward, and a large number of holes are formed in the belt, and waste is supplied onto the belt. A waste sorting device is provided with a cover on the lower surface of the belt at a position where a suction chamber facing the belt is formed, and a suction device is connected to the suction chamber via piping.