JP2001062328A - Blast relief device for crusher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a discharging outlet cover from being deformed by a blast, by opening a blast port, when a lid plate is unlocked from a bone member by the break of a locking member or the lid plate at the generation of the blast in a crusher. SOLUTION: Flammable gas remaining in gas cylinders, paint cans, etc., existing in waste catches fire, on igniting when the waste is subjected to crushing treatment, and burns explosively. At this time, a blast is generated in a crusher C to spread from a crushing drum 1 to a discharging outlet cover 16, and further to a conveyor cover 17, working on a blast removing device E mounted on their wall surfaces. The blast breaks a plurality of locking members 35 locking a lid plate 34 to a bone member 31, or the flexible lid plate 34, and this lid plate 34 is unlocked from the bone member 31 to open a blast port 30, thereby the blast can be released to the atmosphere. As a result, the wall faces of the discharging outlet cover 16 and a conveyor cover 17 are prevented from being deformed by the blast.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crushing apparatus for removing blast generated by explosive combustion of combustible gas or the like contained in waste in a crushing apparatus. It concerns the device.

[0002]

2. Description of the Related Art Conventionally, gas cylinders, paint cans, and the like, in which combustible gas remains, are mixed in the waste crushed by a crushing apparatus. The ignition of the gas ignites the gas, which explodes and burns, generating a blast in the crusher. However, these covers (formed of a thinner material than the crushing vessel of the crushing machine) have a disadvantage that they are deformed and damaged.

Therefore, a blast door is provided on the wall surface of the cover, and when a blast occurs, the blast door is opened to release the blast to the outside (Japanese Patent Laid-Open No. 56-1981). No. 121646).

[0004]

However, the conventional blast door is damaged or broken each time it receives a blast.
There is a problem that it is difficult to reuse it, and furthermore, it takes time and effort to repair it, which leads to an increase in cost and a reduction in the operation time of the crushing device, which causes a reduction in crushing efficiency.

The present invention has been made in view of the above circumstances, and has as its object to provide a novel blast elimination device for a crushing device which can solve the above-mentioned problems.

[0006]

According to the first aspect of the present invention, there is provided a crusher in which an outlet of a crusher is covered with an outlet cover.
A blast port is opened on the wall surface of the discharge port cover, a bone member having a vent hole is fixed to the blast port, and a lid plate for closing the blast port is locked outside the bone member by a locking member. When the blast occurs in the crushing device, the cap member is detached from the bone member due to breakage of the locking member or the cover plate, so that the blast port is opened. According to this, the discharge cover can be prevented from being deformed by the blast beforehand, and furthermore, the cover plate can be locked to the bone member at any position thereof, and the mounting work is easy and easy. Further, the bone member is not damaged or damaged even by the blast, and can be used many times.

In order to achieve the above object, according to the second aspect of the present invention, a carry-out conveyor is provided below the discharge port of the crusher, and the discharge port is provided by a discharge port cover. In the crushing device in which the carrying-out conveyor is covered by a conveyor cover, a blast opening is opened in a wall surface of the conveyor cover, and a bone member having a ventilation hole is fixed to the blast opening. The cover plate closing the blast opening is locked by a locking member, and when the blast occurs in the crushing device, the locking member or the cover plate is broken and the cover plate comes off from the bone member. It is characterized by opening the mouth, according to such a feature, it is possible to prevent deformation of the conveyor cover due to blast, and furthermore, the lid plate is a bone member at any position thereof To Can be stopped, the mounting work is simple and easy, yet the bone member, damage be subjected to blast, without damage, it is possible to use many times.

In order to achieve the above object, according to the third aspect of the present invention, in the above first or second aspect, the bone member is constituted by a grid-like mesh member. According to such features,
In addition to achieving the same effect as that of the first or second aspect, the production of the bone member and its attachment to the blast port are easy.

According to a fourth aspect of the present invention, the cover plate is made of a soft rubber member. According to this feature, in addition to achieving the same effect as that of the first or second aspect, the cover plate can be provided at low cost, and the attachment to the bone member is easy. .

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below based on embodiments of the present invention illustrated in the accompanying drawings.

First, referring to FIGS. 1 to 4, a first embodiment of the present invention will be described.
FIG. 1 is a partially cutaway overall view of a crusher equipped with the blast elimination device of the present invention, FIG. 2 is an enlarged longitudinal sectional view taken along line 2-2 of FIG. 1, and FIG. FIG. 4 is a rear view of the blast eliminator taken along line 3 of FIG. 2, and FIG.
FIG. 3 is the same view as FIG. 2, showing a state in which a cover plate has been removed.

In FIG. 1, a concrete foundation F such as a building is equipped with a crushing device. A crusher C, which constitutes a main part of the crusher, includes a crushing drum 1. The crushing drum 1 has a cylindrical container 2 extending in a vertical direction, and a funnel-shaped container integrally connected to an upper edge thereof. Hopper 3
It is composed of A crushing shaft 4 is provided in the crushing drum 1.
Are supported rotatably in the vertical direction.
A large number of disks 5 are fixed at intervals in the axial direction, and a plurality of hammers 6 are rotatably supported on the outer periphery of these disks 5. An electric motor 7 is operatively connected to the lower end of the crushing shaft 4 via a belt transmission mechanism 8.
The crusher C is operated.

An input port 10 is opened on one side of the upper surface of the hopper 3, and the input port 10 is covered with an input port cover 11. The input port cover 11 extends upward from the input port 10. ing. Also, the inlet cover 11
On the side opposite to the crusher C, a carry-in port 12 is opened.
The waste that is conveyed by the carry-in conveyor 13, that is, the crushed material, falls from the carry-in port 12 into the inlet cover 11, and passes through the inlet 10 into the crusher C. It is thrown in and crushed by a group of hammers 6 rotated by driving of the electric motor 7 here.

The lower side of the crushing drum 1 has an outlet 15
The outlet 15 is covered with an outlet cover 16. The outlet cover 16 is used for the crushing drum 1.
, And the entrance of the conveyor cover 17 is connected to the lower end of the opening.
7 extends to the side of the crushing drum 1.

A pit P is formed on a foundation F below the crusher C. In the pit P, the conveyor cover 1 is formed.
A carry-out conveyor 18 is provided along the lower surface of the opening 7. The space between the carry-out conveyor 18 and the discharge port cover 16 is covered with a conveyor cover 17, and the waste crushed by the crusher C is discharged through the discharge port cover 16 and the conveyor cover 17. It falls onto the carry-in part of the conveyor 18 and is carried out to the outside,
The generated dust is scattered to the outside by the conveyor cover 1.
7 prevents it.

At the upper part of the crusher C, the inlet 10
To monitor the clogging condition of the crusher C
An inspection device I is provided. The inspection device I includes a monitoring camera 20 for television for photographing the inside of the crusher C, and a pair of illumination lights 21 illuminating the inside of the crusher C.

In FIG. 1, reference numeral 22 denotes a workbench provided on the foundation F on the side of the crusher C, and reference numeral 23 denotes a spring cover provided on the upper part of the hopper 3.

One or more blast eliminators E are provided on the wall surfaces of the outlet cover 16 and the conveyor cover 17. Since the blast eliminators E have the same structure, the structure of the blast eliminator E provided on the outlet cover 16 will be described below with reference to FIGS. Is a square blast outlet 30
A bone member 31 having a vent 32 over the entire surface is fixed to the blast outlet 30. This bone member 3
1, the vertical bar 31 ₁ and the horizontal bar 32 ₂ is constituted by a mesh for example a wire mesh formed by assembling a grid pattern, a rigid not to deform even under blast. Outlet cover 1
6, a mounting frame 33 is fixed so as to border the blast port 30. A soft rubber plate covering the blast port 30 is provided between the mounting frame 33 and the wall surface of the discharge port cover 16. The periphery of the lid plate 34 is attached. A plurality of arbitrary portions at the intermediate portion of the cover plate 34 are locked in a spot-like manner to the mesh-shaped bone member 31 by a locking member 35 such as a wire, a string, or a scrap. As the locking member 35, a material having such physical properties that it can be broken by receiving a blast is used.

Next, the operation of this embodiment will be described. First, wastes, that is, objects to be crushed, are loaded into the crushing drum 1 through the loading port 10 by the carry-in conveyor 13, and the electric power is supplied to the inside of the crushing drum 1. The crushing process is performed by hitting by a group of hammers 6 rotated by a motor 7. After the crushing process, the waste is discharged from the outlet 16 to the outlet cover 1.
6 and conveyor 1 for unloading through conveyor cover 17
8 to the outside.

By the way, during the waste crushing process,
The flammable gas remaining in the gas cylinders and paint cans, etc., which was mixed with the waste, ignited due to the ignition of the waste during the crushing process, exploded and burned, and at that time, a blast occurred in the crusher C Then, the blast blows from the crushing drum 1 to the outlet cover 16,
Further, it also spreads to the conveyor cover 17 and acts on the blast elimination device E provided on those wall surfaces. Then, the blast blows, as shown in FIG. 4, a plurality of locking members 35 for locking the lid plate 34 to the bone member 31 or the soft lid plate 3.
4, the cover plate 34 comes off the bone member 31, opens the blast port 30, and allows the blast to escape to the atmosphere. As a result, the outlet cover 1
6. The wall surface of the conveyor cover 17 (thinner than the wall of the crushing drum) can be prevented from being deformed.

Further, even if a negative pressure is generated in the crushing apparatus during the crushing process, the cover plate 34 is supported by the outer surface of the bone member 31, so that the cover plate 34 is not dented.

Next, a second embodiment of the present invention will be described with reference to FIG. 5. FIG. 5 is a rear view of the blast eliminator partially broken away, and the same members as those in the first embodiment are used. Are denoted by the same reference numerals.

In the second embodiment, the structure of the bone member is different from that of the first embodiment, but the other structure is the same as that of the first embodiment.

The metal bone member 131, a plurality of horizontal bars 131 _{and second} vertical bars at both ends left 13 which are parallel in parallel with each other
1 ₁ is configured by fixing the rubber-made cover plate 34 on each bar 131 ₂ is locked by the locking member 35.

The bone member 131 has the same function as the bone member 31 of the first embodiment.

Next, a third embodiment of the present invention will be described with reference to FIG. 6. FIG. 6 is a rear view of the blast elimination device with a part cut away, and the same members as those in the first embodiment are used. Are denoted by the same reference numerals.

This third embodiment also differs from the first embodiment in the structure of the bone members, but is otherwise the same as the first embodiment.

The metal bone member 231 is formed by punching a large number of punches 231 _{2 on} a punching metal, that is, a metal plate 231 _1.
The opening is formed.

The bone member 231 has the same function as the bone member 31 of the first embodiment.

The blast eliminator E is provided with an inlet cover 1
It may be provided also on the wall surface of the first.

Although the first to third embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various embodiments are possible within the scope of the present invention.

For example, the bone member may be made of a perforated plate or a porous body instead of a wire mesh, a rod, or a punched metal, and the lid plate may be made of a synthetic resin instead of a rubber plate. It may be constituted by another equivalent material such as a plate, and the locking member may be constituted by another equivalent material such as a wire, a string, or a thread instead of a scratched portion. ,
The blast port may be formed in another shape such as a circle instead of a square.

[0033]

As described above, according to the first aspect of the present invention, the discharge port cover covering the discharge port of the crusher can be prevented from being deformed by the blast. ,
It can be locked to the bone member at any position, and the mounting operation is simple and easy. Further, the bone member can be used many times without being damaged or broken by the blast.

According to the second aspect of the present invention, the conveyor cover for covering the discharge conveyor can be prevented from being deformed by the blast, and the cover plate can be provided with a bone at any position. It can be locked to the member, and its attaching work is easy and easy. Further, the bone member is not damaged or damaged even by the blast and can be used many times.

Further, according to the third aspect of the present invention,
In addition to achieving the same effect as that of the first or second aspect, the production of the bone member and its attachment to the blast port are easy.

According to the fourth aspect of the present invention, in addition to achieving the same effects as those of the first or second aspect, the cover plate can be provided at a low cost, and It is easy to attach to a member.

[Brief description of the drawings]

FIG. 1 is a partially broken whole view of a crushing device provided with a blast elimination device (first embodiment)

FIG. 2 is an enlarged vertical sectional view taken along line 2-2 of FIG. 1;

FIG. 3 is a rear view of the blast eliminator as viewed in the direction of arrows 3 in FIG. 2;

FIG. 4 is a view similar to FIG. 2, showing a state in which a cover plate has been removed when a blast occurs.

FIG. 5 is a partially broken rear view of the blast eliminator (second embodiment).

FIG. 6 is a partially cutaway rear view of the blast eliminator (third embodiment);

[Explanation of symbols]

15 discharge port 16 discharge port cover 17 conveyor cover 18 ₁ ... Conveyer 30... Explosion port 31. ··· Bone member 32 ·········· Vent 34 ············································ Bone member 231 ··················· C ... Crusher

Claims (4)

[Claims] 1. A crusher comprising an outlet (15) of a crusher (C) covered by an outlet cover (16), wherein a blast port (30) is opened on a wall surface of the outlet cover (16). A bone member (31; 131; 231) having a vent (32) is fixed to the blast port (30), and the blast port (3) is provided outside the bone member (31; 131; 231).
0) is closed by a locking member (35), and the locking member (35) is closed when a blast occurs in the crushing device.
Alternatively, the cover plate (34) due to breakage of the cover plate (34)
The blast opening (30) is opened by deviating from the bone member (31; 131; 231). 2. An unloading conveyor (18) is provided below the discharge port (15) of the crusher (C), and the discharge port (1) is provided.
5) In a crusher in which the discharge cover (16) is covered by the discharge cover (16) and the carrying-out conveyor (18) is covered by the conveyor cover (17), a blast port (30) is opened in the wall surface of the conveyor cover (17). Then, a bone member (31; 131; 231) having a vent (32) is fixed to the blast port (30), and the blast port (3) is provided outside the bone member (31; 131; 231).
0) is closed by a locking member (35), and the locking member (35) is closed when a blast occurs in the crushing device.
Alternatively, the cover plate (34) due to breakage of the cover plate (34)
Wherein the blast opening (30) is opened by detachment from the bone member (31; 131; 231). 3. The blast removing device for a crushing device according to claim 1, wherein said bone member (31) is constituted by a lattice-like mesh member. 4. The blast removing device for a crusher according to claim 1, wherein said lid plate (34) is made of a soft rubber member.