JP2004074045A - Vertical crusher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vertical impact crusher for crushing industrial waste consisting of metal and synthetic resin etc. and domestic waste such as bulky refuse etc., in which the crushed material can smoothly be discharged after being crushed by the crusher. <P>SOLUTION: The vertical crusher is constituted in such a manner that rotors 5, 6 are attached to a vertical rotation shaft 4 disposed on the central part of a casing 2, material to be crushed is crushed with a hammer 15 disposed on the rotor and a liner 17 disposed on the inner peripheral part of the casing and the crushed material is received onto a table 20 disposed on the middle position in the casing and is discharged in a prescribed direction with a scraper 23 rotating together with the rotor on the table. The table 20 disposed on the middle step in the casing is partially cut off from the end part of circumference toward the center side, forming a discharge port 30 through which the crushed material conveyed by the scraper 23 is dropped and discharged. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vertical impact-type crusher (referred to as a "vertical crusher") for crushing domestic waste such as industrial waste and bulky garbage made of metal materials, synthetic resins, and the like. .
[0002]
[Prior art]
A rotor provided with a plurality of strikers (hammers) is provided inside a casing having an input port for a material to be crushed provided thereon, and a repulsion plate (liner) is provided on an inner peripheral portion of the casing. A vertical crusher for impact crushing a crushed object by a striker provided in the above and the repulsion plate is widely used.
[0003]
FIG. 1 illustrates this vertical crusher. The crusher 1 has a cylindrical upper frame 2 a constituting a casing 2 on a base 3, and is coupled to a lower side of the upper frame. And a cylindrical main frame 2b. A main shaft 4 that is a vertical rotation shaft is provided at the center of the upper frame 2a and the main frame 2b. The main shaft 4 is provided with an upper rotor 5, a center rotor 6, and a lower rotor 7. The upper rotor 5 is provided with diametrical arms 10a, 10b constituting the fixed hammer 10 in different vertical stages, and hammer blades 11,... Are attached to the left and right sides of the arms 10a, 10b, respectively.
[0004]
On the other hand, a hammer pin 14 is attached between the center rotor 6 and the lower rotor 7, and a plurality of (32 in the figure) ring hammers 15, in which a hole 15a larger than the outer diameter of the hammer pin 14 is provided in the center. ... is loosely fitted.
[0005]
An upper liner 16 and a lower liner 17 are provided on the inner peripheral surface of the upper frame 2a, and a space for crushing is provided between the liners 16, 17 and the hammer blade 11 and the ring hammer 15.
[0006]
A table 20 is provided in the upper and lower middle portions of the main frame 2b, and a liner 21 is provided on the upper surface of the table 20. On the upper surface side of the table 20, there is provided a scraper 23 for scraping up the crushed material and discharging it in a predetermined direction. The scraper 23 is attached to the lower rotor 7 by a scraper pin 24, and rotates at a high speed together with the lower rotor 7. A bearing casing 27 is provided at the center of the main frame 2b and the base 3 provided below the main frame 2b. The main shaft 4 is supported by a bearing 28 provided in the bearing casing. A pulley 29 is attached to the lower end of the main shaft 4, and the rotational force of the motor is transmitted to the main shaft 4 by a belt wound around the pulley.
[0007]
In order to crush the object to be crushed such as industrial waste using the crusher 1, the object to be crushed is thrown in from the upper end opening (input port) 2c of the upper frame 2a while rotating the main shaft 4. This crushed material is crushed between the hammer blade 11, the hammer ring 15, the upper liner 16, and the lower liner 17, and is provided on the table 20 through the space between the lower rotor 7 and the liner on the inner surface of the casing. Falls on the existing table liner 21. The fallen crushed material is scraped by the scraper 23 and discharged from the discharge port 30.
[0008]
[Problems to be solved by the invention]
In this type of crusher, the table 20 has a disk shape in a plan view, and a horizontal discharge portion extending laterally is formed at a part of the circumference thereof, and a discharge chute is directed downward at the tip end. It is general that it is provided in an inclined state. The crushed material crushed between the hammer, the liner, and the like falls on the table 20, is scraped by the scraper 23, and is discharged from the discharge unit.
[0009]
Since the scraper 23 is rotating at a high speed, the crushed material is discharged to the discharge chute side on the horizontal discharge portion and does not stay on the discharge portion, but the crushed material contains water or has an adhesive property. In the case where the crushed material is provided, there is a problem in that the crushed material adheres to the upper surface of the discharge portion, gradually accumulates, solidifies, and hinders discharge of the crushed material. As a method for solving this problem, it is conceivable to eliminate the horizontal part by inclining the table surface itself, but since the lower discharge part requires a height, the height of the entire apparatus is increased and the size is reduced. This is a problem in planning. In addition, an increase in the length of the main shaft to which the rotor is attached may cause a problem in balance.
[0010]
Furthermore, since there is a slight gap along the circumference of the rotor between the liner provided on the table and the rotor to which the scraper is attached, fine crushed material enters this gap and stays without being discharged as it is. As a result, there is also a problem that the rotor is worn by the crushed material. Accordingly, an object of the present invention is to solve the problem of the above-described conventional vertical crusher in terms of discharging the crushed material, and to reliably discharge the crushed material with a simple structure.
[0011]
[Means for Solving the Problems]
In order to solve the above problems, the present invention employs the following configuration. That is, in the vertical crusher according to the present invention, a rotor is attached to a vertical rotation shaft provided in the center of the casing, and the crushed material is separated by a hammer provided on the rotor and a liner provided on the inner periphery of the casing. In a vertical crusher configured to crush and receive the crushed crushed material on a table provided at a middle position in the casing, and configured to discharge in a predetermined direction by a scraper attached to the rotor and rotating on the table. The table provided at the middle stage in the casing is partially cut away from the circumferential end toward the center to form an outlet through which the crushed material carried by the scraper is dropped and discharged. I have.
[0012]
In this vertical crusher, a part of the table on which the crushed material falls is cut out from the circumferential end toward the center and a discharge port is formed, so the crushed material raked by the scraper is During the rotation of the scraper, the scraper is discharged in the circumferential direction by centrifugal force, and is dropped in the vertical direction by gravity to be discharged. For this reason, the crushed material containing water and the crushed material having stickiness are reliably discharged without staying.
[0013]
The fine crushed material that entered the gap between the rotor to which the scraper was attached and the liner on the table was cut off because a part of the table was cut away and the liner was also cut off in that part. It falls from the notch, and its stay is prevented.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described more specifically based on embodiments of the present invention shown in the drawings.
[0015]
The basic structure of this vertical crusher 1 is as already described with reference to FIG. 1, and as a casing 2 having an inlet at the top, a cylindrical upper frame 2a is connected to a lower side of the upper frame. And a cylindrical main frame 2b. A vertical rotating main shaft 4 is provided at the center of the upper frame 2a and the main frame 2b, and the main shaft 4 is provided with an upper rotor 5, a center rotor 6, and a lower rotor 7. A fixed hammer 10 is attached to the upper rotor 5, a hammer pin 14 is attached between the center rotor 6 and the lower rotor 7, and a plurality of holes (15 a) larger than the outer diameter of the hammer pin 14 are provided at the center. (32 in the figure) are loosely fitted.
[0016]
A table 20 is provided in the upper and lower middle portions of the main frame 2b, and a liner 21 for protecting the table surface is provided on the upper surface of the table 20. A scraper 23 for discharging is provided. The scraper 23 is attached to the lower rotor 7 by a scraper pin 24, and rotates at a high speed together with the lower rotor 7.
[0017]
As described above, in the vertical crusher 1, a part of the table 20 provided in the middle stage of the casing 2 is cut off in a half-moon shape from the circumferential end to the center. For this reason, the outer edge of the rotor 7 partially protrudes into the notch. The liner 21 is attached to the outer periphery of the rotor 7 in an annular shape. However, since the table 20 is notched, this liner also has a cutout shape. 7, a small gap t opens outward at the cutout portion.
[0018]
The cutout portion serves as a discharge port 30 from which the crushed material scraped by the scraper 23 falls and is discharged, and a discharge chute 35 formed of an inclined plate is provided below the cutout portion. The upper end of the discharge chute 35 is supported by a support plate 36 hanging down from the edge of the cut-out table 20. In addition, S in FIG. 4 represents the movement locus of the scraper 23.
[0019]
In this vertical crushing machine 1, when a material to be crushed is introduced from an inlet 2c provided at the upper end of the upper frame 2a, the material to be crushed is connected to the hammer blade 11, the hammer ring 15, and the upper hammer ring 15 of the fixed hammer 10. It is crushed between the liner 16 and the lower liner 17, and falls on the table liner 21 provided on the table 20 through the space between the lower rotor 7 and the liner on the inner surface of the casing. The fallen crushed material is raked up by the horizontal rotation of the scraper 23 and is carried to the position of the discharge port 30. Since the table 20 is notched in this portion, the crushed material collected by the scraper 23 While falling freely from the discharge port 30, it is discharged by centrifugal force and slides on the discharge chute to move to a predetermined position.
[0020]
On the other hand, between the lower rotor 7 and the annular liner 21 of the table 20, there is a slight groove-like gap along the entire circumference of the rotor, and fine crushed material enters and accumulates in this gap. For this reason, there was a problem that the rotor 7 rotating at a high speed was worn out. Since it is open outward, the crushed material that fits into this gap is discharged outward from the opening as the rotor 7 rotates. Therefore, wear of the rotor 7 can be suppressed.
[0021]
As described above, in the vertical crusher 1, a part of the table for receiving the crushed material is notched, and the crushed material collected by the scraper 23 is discharged by directly falling at the cutout position. Therefore, even a crushed material that contains moisture or easily adheres to the table does not stay on the table. For this reason, even if the continuous operation is performed, there is no possibility that the state of discharging the crushed material is deteriorated.
[0022]
【The invention's effect】
As described above, in the vertical crusher according to the present invention, since a part of the table for receiving the crushed material after being crushed is cut out to form a discharge port, the crusher is rotated on the table. When the scraper that scrapes up the crushed material reaches the position of the discharge port, the crushed material that has been scraped is discharged by centrifugal force or free fall, and is a crushed material that easily adheres to the table surface or the like. No longer stays. The crushed material that has entered the groove-shaped gap between the rotor and the table liner or the gap between the rotor and the table body is discharged from the opening of the groove-shaped gap at the position of the discharge port by rotation of the rotor. Is done. As described above, the crusher according to the present invention has a simple structure, but can solve the problem caused by the crushed material attached to the vicinity of the discharge port and solidified.
[Brief description of the drawings]
FIG. 1 is a plan view of a vertical crusher.
FIG. 2 is a front view thereof.
FIG. 3 is a longitudinal sectional view of a main part thereof.
4A is a plan view of the table, FIG. 4B is a cross-sectional view, and FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vertical crusher 2 Casing 3 Base 5 Upper rotor 6 Center rotor 7 Lower rotor 10 Fixed hammer 20 Table 21 Table liner 23 Scraper 30 Discharge port

Claims (2)

A rotor is attached to a vertical rotating shaft provided at the center of the casing, and the crushed material is crushed by a hammer provided on the rotor and a liner provided on the inner peripheral portion of the casing. In a vertical crusher configured to be received by a table provided at a middle position and discharged in a predetermined direction by a scraper attached to the rotor and rotating on the table, a table provided at a middle stage in the casing, A vertical crusher characterized in that the crushed material carried by the scraper is partially cut away from its circumferential end toward the center to form a discharge port through which the crushed material carried by the scraper is dropped and discharged. The vertical crusher according to claim 1, wherein a table liner is provided on the table surface, and a gap between the table liner and the rotor opens outward at the position of the discharge port.

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