JPS6023578Y2 - Explosion-proof hatch device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an explosion-proof hatch device for municipal waste incineration plants and the like.

Today, the contents of waste in municipal waste incinerators have become more complex.
Several explosion accidents occur across the country every year due to the industrial waste thrown into non-combustible waste decomposition machines containing potentially explosive substances such as propane cylinders that should not be thrown away.

In the unfortunate event of an explosion, the design was such that the explosive force would escape from the main body of the crusher to the top, and an opening was also provided in the ceiling of the building to allow the blast wave to escape into the atmosphere.

In order to prevent rainwater from flowing in, a lightweight explosion-proof hatch is placed over the opening, and the structure is as shown in Figure 1. In Figure 1, 1 is an opening in the ceiling of the building. This is to prevent buildings from being damaged by the blast wave in the event of an explosion.

2 is an explosion-proof hatch arranged at the top of the opening 1, and is placed on a receiving frame 4 fixed to the top via a support frame 3 fixed to the explosion-proof hatch 2 to prevent rainwater from entering. .

5 is an anchor of the receiving frame 4.

In this way, the explosion-proof hatch 2 had a structure that would only scatter in order to release the force in the event of an explosion.

However, since the explosion-proof hatch 2 is installed at a height of about 12 m above the ground, and the explosive force is large, if the hatch 2 falls from a high place and hits people or property, there is a risk of loss of life and damage to property. is clear.

This invention is an improvement on the explosion-proof hatch in consideration of this point. Normally, the opening is closed, but in the event of an explosion, it opens upward to release the explosive force, prevents it from scattering, and closes the opening again. The purpose of this invention is to provide an explosion-proof hatch device that makes it possible.

In order to achieve the above object, the present invention provides a pair of left and right double-sided explosion-proof hatches that are rotatable via hinges at the top of the opening for escaping the blast wave, and the explosion-proof hatches are placed in the closed position near the hinges. The hatch receiver that holds the hatch is provided with a stopper, and has a length between the bottom surfaces of the explosion-proof hatches near the mutually opposing ends and the lower part of the opening to allow each hatch to rotate upward by a predetermined angle about the hinge. A pair of left and right checks 7 are interposed therebetween, and a plate is installed between the opposing ends of the explosion-proof batches in the closed position and fixed to the upper surface of one batch. Since the explosion-proof batch opens in a double-door shape when an explosion occurs, a space can be quickly created through which the blast wave can pass along the direction of the blast.The explosion-proof batch rotates at a predetermined angle around the hinge due to wind pressure and will not fly away. It is held by Che 7 without any problem.

An embodiment of the present invention will be described below based on the drawings.

In FIG. 2, reference numeral 11 is an opening provided in the ceiling of the building, which is the same as that in FIG.

12. 12 is a pair of left and right explosion-proof badges configured in a double-opened shape, and the bases on the opposite side of the opposite ends are rotated by a pair of left and right receiving frames 13, 13 fixed to the top of the opening 11. They are pivotally connected via hinges 14, 14, respectively.

15.15 is an anchor for fixing the receiving frame 13.13 to the top of the opening 11, and 16, 16 is an explosion-proof batch 1.
Each batch receiver corresponding to 2°12 is a stopper, and the stopper 16.16 rotates and the batch receiver
4 and 14 to maintain the closed position of the explosion-proof batch 12 and 12.

Reference numeral 17 denotes a plate for rain protection, and the plate 17 is extended between the opposing ends of the explosion-proof patch 12.degree. 12 and welded to the upper surface of one patch 12.

18 is a top plate placed above the plate 17;
Of the protrusions in the width direction provided on the upper surfaces of the explosion-proof batches 12, 12, each of the protrusions adjacent to the plate 17 is fitted over the outside so as to cover the gold mines of the batches 12, 12 to ensure rain protection. .

Reference numeral 19.19 denotes a pair of left and right shock absorbers connected to a ring body 20.20 provided on the lower side of the pair of explosion-proof batches 12, 12 near the ends facing each other; A pair of chenos 21.21 on the left and right between the bottom and the bottom.
is interposed.

. The length of the chain 721 is such that the explosion-proof badge 12 is the rotation hinge 1.
The length is such that it allows rotation by a predetermined angle when rotated upward about 4.

22 and 22 are anchors for fixing the lower ends of the chains 721, 21 to the side walls of the opening 11, respectively.

FIG. 3 shows details of the shock absorber 19, in which a hanging hook 24 is fixed to the upper part of the outer cylinder 23, a shaft 26 extending from the lower part of the hanging hook 25 is inserted into the internal space, and the shaft 26 and the outer cylinder A spring 27 is interposed between 23 and the upper hanging hook 24 is attached to the ring body 2 of the explosion-proof batch 12.
0, the hooks 25 are connected to the chains 721 at the lower end.

The explosion-proof batch 12.12 normally closes the opening 11 as shown by the solid line and acts as a roof to prevent rainwater from entering, but in the event of an explosion, the explosion-proof batch 12.12 rotates around the rotating hinge 14 as shown by the imaginary line due to the blast wave. It bounces up and releases its explosive power.

At this time, the impact device 19 prevents the batch attachment portion from coming off due to shock.

When it rotates to the upper plate, it is held by a checker 721 to prevent it from scattering.

and be restored automatically or manually after the explosion.

As described above, according to the present invention, the explosion-proof batch in the closed position can completely prevent rain etc. from entering by the plate, and in the event of an explosion,
The explosion-proof badge is opened in a double-door shape by the blast wave, so
A space can be quickly formed through which the blast can pass along the direction of the blast, allowing the explosive force to escape into the atmosphere.
Can prevent danger.

Moreover, since the explosion-proof batch rotated by a predetermined angle around the hinge due to wind pressure is held by the checker 7, the danger of it flying off can be prevented, and there is no risk of injury to human life or damage to other equipment.

It is also possible to reclose the opening.

[Brief explanation of the drawing]

FIG. 1 is a front configuration diagram of a conventional example, FIG. 2 is a front configuration diagram showing an embodiment of the present invention, and FIG. 3 is a sectional view of the shock absorbing device.

Claims (1)

[Scope of utility model registration request] A pair of left and right double-opening explosion-proof hatches rotatable via hinges is provided at the top of the opening for escaping the blast, and a stopper is provided near the hinge for maintaining the explosion-proof hatch in a closed position. interposing a pair of left and right chains having lengths that allow each hatch to rotate upward by a predetermined angle about the hinge, between the lower surfaces of the hatches near mutually opposing ends and the lower part of the opening; An explosion-proof hatch device comprising a plate that extends between opposing ends of the explosion-proof hatch in the closed position and is fixed to the upper surface of one of the hatches.