JPH049095B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a rotary impact crusher that can crush different types of scrap with one machine.

(Prior Art) In the conventional technology, scraps are processed using shredding machines with different functions corresponding to the types of scraps, such as regular scraps, heavy scraps, long scraps, and scraps.

(Problem to be solved by the invention) However, in the conventional technology, different crushers have to be used depending on the type of scrap, so it is necessary to install a large number of expensive crushers, and the equipment cost increases. There are problems in that it is expensive and requires a large installation area.

The object of the invention is to provide a crusher capable of processing any type of scrap.

(Means for Solving the Problems) In order to achieve the above object, the present invention is characterized by employing the following means.

A rotor 4 equipped with a plurality of hammers 5 and switchable between forward and reverse rotation is provided in the crusher casing 1, and a semicircular discharge plate 6 is provided along the lower circumference of the rotor. A first crushing blade 7 and a second crushing blade 8 are fixed to both ends of the plate, respectively. A first damper 9 equipped with a discharge hole 9a for the crushed material H is provided diagonally above the rotor 4, and a first damper 9 is provided below the first damper for adjusting the traveling direction of the crushed material H when the rotor 4 rotates normally. A second damper 10 is provided. Further, below the second damper 10, a third damper 11 is provided which opens upward when the rotor 4 reverses rotation to allow the scrap S to advance. Similarly, above the rotor 4, there is a fourth
A damper 12 is provided.

(Function) In the normal scrap processing according to the present invention, the rotor 4 is rotated in the normal direction, the scrap S is crushed by the cooperation of the first crushing blade 7 and the hammer 5, and the scrap S is moved by the rotation of the rotor 4 and the discharge plate 6 The remaining crushed materials are thrown upward and collide with the arcuate surface of the lower end of the second damper 11 and the wall surface of the casing 1 formed obliquely near the second damper. The direction is changed and the waste is discharged from the first damper 9, and what is not discharged here is returned to the rotor 4 and reprocessed.

To process heavy scraps and scraps of long items, the rotor 4 is rotated in the opposite direction, and the third damper 11 is opened outward to discharge the scraps. The debris around the scrap is removed, and the crushed materials S are discharged from the discharge plate in the same manner as during normal rotation.
The rotor 4 collides with the lower surface of the rotor 2 and changes direction.
is returned to and reprocessed.

(Example) Examples of the present invention will be described below with reference to the drawings.

As shown in the figure, the crusher casing 1 consists of a crushing chamber 1a located in the center, a supply port 1b for the scrap to be processed on the right side thereof, and a discharge chute 1c for the crushed material H located on the left side of the crushing chamber. A fading roller 2 is provided within the supply port 1b and is adjustable by a cylinder 2a. A lining 3 strong enough to withstand collisions of crushed objects is attached to the peripheral wall near the entrance of the crushing chamber 1a.

A rotor 4 is horizontally supported in the center of the crushing chamber 1a, and around this rotor are numerous hammers 5...
is rotatably supported. This rotor 4 can be driven in both forward and reverse directions.

A hammer 5 is installed in a portion corresponding to the floor surface of the crushing chamber 1a.
A discharge plate 6 is fixed to the casing 1 and has an arcuate shape along the rotation locus. The discharge plate 6 is partitioned by a grate bar 6a to form discharge holes 6b. The casing on the right side of the rotor 4 at both ends of this discharge plate has a first crushing blade 7 for use when the rotor rotates in the normal direction, and the left side has a second crushing blade 8 for use when the rotor rotates in the reverse direction. Each is fixed.

The central part of the ceiling of the crushing chamber 1a is formed flat, with a slope sloping downward to the right on the right side and a slope rising upward to the left on the left side. The left side of this slope constitutes a passage communicating with the discharge chute 1c, and a first damper 9 is provided here with its tip located near the ceiling. The first damper 9 has a lattice-shaped discharge hole 9 through which only the fragmented crushed material can pass.
A is formed. Directly below the first damper 9, a second damper 10 having a sector-shaped cross section is provided with its arcuate surface facing downward. This second damper 10 is tilted toward the rotor (double-dashed line) when the rotor 4 rotates normally, so that the crushed material H can collide with the circular arc surface. Further, below the second damper 10, a third damper 11 having a plate-like cross section is provided with its tip located near the second crushing blade 8. This third damper 11 is tilted outward (indicated by a two-dot chain line) when the rotor 4 is rotated in reverse to process long scraps, etc., and serves as a scrap discharge hole. A fourth damper 12 having a fan-shaped cross section is provided in the casing 1 directly above the rotor 4 with its arcuate surface facing left. This fourth damper 12 is tilted downward (double-dashed line) when the rotor 4 reverses, and the crushed material H is thrown up.
The direction of travel (solid arrow) is adjustable.
The angle adjustment of these dampers is appropriately performed by a hydraulic cylinder (not shown) provided outside the casing 1. The processed scraps S and waste H are discharged by a discharge conveyor (not shown) provided below the discharge plate 6 and the discharge chute 1c.

(Effects of the Invention) As described above, according to the present invention, it is possible to process all kinds of scraps with a single device, so there are significant effects such as reduction in equipment costs and no need for a large installation area.

[Brief explanation of drawings]

The drawing is a sectional view of the main part. 1... Casing, 4... Rotor, 5... Hammer, 7, 8... Crushing blade, 9... First damper, 9a
...Discharge hole, 10...Second damper, 11...Third
Damper, 12... Fourth damper, S... Scrap, H... Crushed material.

Claims (1)

[Scope of Claims] 1. A crusher casing, a rotor provided within the casing and capable of rotating in both directions, a plurality of hammers provided on the rotor, and a plurality of hammers provided along the lower circumference of the rotor. a crushing blade fixed to both ends of the discharge plate; a first damper located diagonally above the rotor and provided with a crushed material discharge hole; and a first damper located below the first damper. a second damper for adjusting the advancing direction of the crushed material when the rotor rotates in the normal direction; a third damper located below the second damper to allow the scrap to advance when the rotor rotates in the reverse direction; A crusher comprising: a fourth damper located above the rotor for adjusting the direction of the crushed material when the rotor is reversed.