JPS5991400A - Dust processing device for central type vacuum cleaning facility - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a dust treatment device for centralized vacuum cleaning equipment installed in nuclear reactor facilities and the like.

[Technical background of the invention]

Centralized vacuum cleaning equipment is effective for nuclear reactor facilities, etc. from the standpoint of reducing indoor radiation exposure, improving the working environment, and reducing waste. This centralized true 7P cleaning equipment consists of a suction valve, piping, dust treatment device, blower, and exhaust duct.
In this centralized direct air ♂ I sweeping equipment, suction valves placed at various locations in the facility suck in dust of various sizes, from minute dust such as floating objects to fine dust such as welding layers. This dust-containing air is collected in one place by piping, and the dust is collected there by a dust treatment device such as a Zyclone.

[Problems with background technology]

By the way, in a dust processing device, it is desirable to efficiently collect dust of a wide range of sizes.

However, with a dust processing device such as Zyclone, in order to efficiently collect dust of a wide range of sizes, the device inevitably becomes large and its installation area becomes large.

Furthermore, since the dust to be treated is radioactive, it is necessary to suppress its release to the outside as much as possible, and to minimize exposure to radiation during handling, but the above-mentioned apparatus is insufficient.

[Purpose of the invention]

The present invention has been made in response to such circumstances, and the first invention is
The purpose of the present invention is to obtain a dust treatment device that is small and capable of collecting dust of a wide range of sizes with high efficiency.

In addition to the above, a second object is to provide a dust processing device that can easily collect collected dust without directly touching it and that reduces exposure to radioactive dust.

[Summary of the invention]

The first object is to provide an inlet for taking in dust-containing air at the lower side of the container, an outlet for discharging clean air above the container, and a position in the container relative to the inlet. Coarse dust is formed from dust air.

The second purpose is to provide an inlet for taking in dust-containing air at the lower side of the container, provide an outlet for discharging clean air above the container, and provide a discharge port at a position corresponding to the inlet in the container. A baffle plate is attached to the container to separate coarse dust from the dust-containing air, and a filter is attached to both sides of the baffle plate in the container to collect fine dust. This is achieved by a dust processing device which is equipped with a shaking mechanism to shake off the collected dust, and is further provided with a dust discharge damper below the front fte container to remove the dust.

[Embodiments of the invention]

The present invention will be described below based on illustrated embodiments.

As shown in FIG. 1, the container 1 consists of a cylindrical bag chamber 2 located above and a hopper chamber 3 connected to the lower end of the bag chamber 2. An inlet 1"4 for taking in dust-containing air from the direction is provided, and an outlet 1"5 is provided for discharging clean air after dust collection on the earthen wall of the bag chamber 2. .

The reason why a large number of baffle plates 6 are arranged in a louver shape at the position corresponding to the inlet 4 in the container is to efficiently separate coarse dust from the dust-containing air. The size is the size of the baffle plate 6,
Since it changes depending on the spacing, angle, etc., it is necessary to keep these in mind when installing.

A support member 7 is installed at the upper part of the bag chamber, and a plurality of shaking mechanisms 8 such as vibrators are supported on the support member 7. This shaking mechanism 8 is for shaking off dust collected on a bag filter 9, which will be described later.

Further, below the support member 7 in the bag chamber, a large number of bag filters 9 made of polyester or the like are arranged so that their axes are located in the vertical direction. As shown in FIG. 3, this bag filter 9 has a hollow cylindrical shape with its upper part closed, and passes through the buckle plate 6.
The incoming dust-containing air is guided through the lower opening and is configured to collect fine dust on its inner circumferential wall. The upper end of this bag filter 9 is suspended from the disk 10 via the center 1f 49a, and the bag filter 9 is further suspended from the shaking machine (attached to the shaker 8) via the rod 10a of the disk 10. There is.

On the other hand, the lower end of the bag filter 9 is attached to a plate 11 that partitions the bag chamber 2 and the hopper chamber 3. This plate 11 is provided with a large number of small holes at positions corresponding to the internuclear space 1'' so that the dust-containing air from the hopper chamber 3 can be sufficiently guided through the opening of the bag filter 9.

Further, an opening 3a formed at the lower end of the hopper chamber 3 is provided with a waste discharge damper 13 having a shoe 12. This M, 111' output damper 13 has its discharge port 13a.
The lid 14 is configured to be opened and closed by rotating an arm 16 about a support shaft A by operating a handle 15 provided on the outside.

Next, the operation of the embodiment will be explained.

As shown in FIG. 1, dust-containing air sucked into the hopper chamber 3 from the inlet 4 is first guided to the baffle plate 6.

Here, relatively coarse particles in the dust-containing air (Japanese dog 17Q dust)
is directly attached to the baffle plate 6 because its inertia is large.
The baffle plate 6 imparts a downward transport amount, separates the particles from relatively fine particles (fine dust), and deposits them in the lower part of the hopper chamber 13.

On the other hand, regarding the fine dust contained in the dust-containing air, the fine dust passes through the buckle plate 6 along the upward flow of air and passes through the small holes in the plate L to the bag filter 9.
The fine dust contained in the dust-containing air after coarse dust separation is collected by the inner wall of the bag filter 9. The clean air after collection passes through the wall of the bag filter 9 and enters the bag chamber 2, and is then led to the discharge port 5.

Therefore, the dust collected by the bag filter 9 is
It is shaken off by a shaking mechanism 8 such as a vibrator and deposited in the lower part of the hopper chamber 3. The accumulated dust is collected from the waste discharge damper 13 at a proper time. In that case, the lid 14 is opened by operating the nozzle 15, and the dust is discharged directly into a collection cart (not shown).

In the above embodiment, first the coarse dust contained in the dust-containing air is separated by the baffle plate 6, and then the fine dust is collected, so that the apparatus can be made smaller. Moreover, it becomes possible to efficiently collect dust particles of a wide range of sizes.

Further, since the dust collected on the bag filter 9 is shaken off by the shaking machine 1#8 and the dust thus shaken off is collected from the waste discharge damper 13, the collection power is very high. Moreover, the exposure of workers' limbs and the inhalation of dust into their bodies can be significantly reduced.

〔Effect of the invention〕

As described above, the dust treatment device of the first invention has the advantage of being small and capable of efficiently collecting dust of a wide range of sizes.

In addition to the effects of the first invention, the dust treatment device of the second invention has the effect of being easy to collect and significantly reducing the radiation exposure of workers and the inhalation of dust into the body. have

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a vertical cross-sectional front view of an embodiment of the first invention and the second invention, Fig. 2 is a sectional view of a corresponding portion of Fig. The figure is a vertical cross-sectional view of the lag filter shown in Figure 1. 1... Container, 4... Inlet, 5... Group 1 old'', 6
...) Kutsufuru plate, 8...shaking machine t
f'f, 9...Nog filter, J3...
IJHI = Out damper. Applicant's representative Kiyoshi Inomata 1st hearing 2nd figure 5 0

Claims (2)

[Claims] (1) An inlet for taking in dust-containing air is provided at the lower side of the container, an outlet for discharging clean air is provided above the container, and a position corresponding to the inlet in the container is for dust-containing air. A baffle plate is installed to separate coarse dust from the container, and a filter is installed above the baffle plate in the container to collect fine dust. A dust processing device for centralized vacuum cleaning equipment, characterized by being equipped with a shaking mechanism that removes dust. (2) An inlet for taking in dust-containing air is provided at the bottom of the container R11 (11, lj), a discharge port is provided below the container for releasing clean air, and a position corresponding to the inlet in the container is provided. A baffle plate is attached to the container to separate coarse dust from the dust-containing air, and a filter is attached above the front TTC buckle plate in the container to collect fine dust. 1. A dust processing device for a centralized vacuum cleaning equipment, characterized in that a shaking mechanism is installed to shake off the dust, and a dust discharge damper for discharging the dust is further provided below the container.