JPS5942720Y2 - Air filter disassembly equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for dismantling an air filter, particularly an air filter for adsorbing radioactive dust, in which a filter material is housed in a cylindrical wooden frame.

Conventionally, used air filters that have absorbed radioactive dust are stored in 11-packs, but this method requires a large amount of storage space, and as the demand for this type of air filter increases, storage becomes difficult and costly. There was a drawback that it was expensive.

Therefore, it has been considered to press the air filter for one time and then store and discard it, but this method has drawbacks such as requiring a large press machine and having a small volume reduction rate.

Alternatively, it is possible to incinerate the air filter in step 1-1, but this method burns the glass fibers together with the wooden frame.
Since filter materials made of asbestos etc. are also incinerated,
There are drawbacks such as hearth clogging due to molten glass fiber and asbestos.

The present invention was developed based on these circumstances, and its purpose is to separate the wooden frame from the filter material and cut the wooden frame into pieces to easily and inexpensively dispose of the air filter. The purpose of the present invention is to provide an air filter disassembly device that can disassemble air filters.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

1. Air filter IV to be disassembled by the device of the present invention
i. As shown in Figures 1a and bK, it is made of, for example, a cylindrical wooden frame 2 with a square cross section, glass fiber, asbestos, etc., and is housed inside the wooden frame 2 by being adhered with an adhesive. It is composed of a filter material 3.

This air filter 1 is used, for example, to adsorb radioactive dust.

Next, the dismantling apparatus will be explained with reference to FIGS. 2 to 6.

4 in the figure is a box-shaped base, and the third
A glove box 5 in the form of a sealed box is placed on the left side of the figure via a gasket (not shown).

Inside the glove box 5, there is a large discharge door 5a on the upper side.
, glove port) 5b, whistle) 5c, and other lighting, ventilation equipment, etc. (not shown) are provided, and the lower side can be opened and closed by a door 6.

In addition, the support piece 4aKH1 fixed to the right end of the top surface of the base 4
The base end of a piston rod 7a of a hydraulic cylinder device (extrusion drive device) 7 is pivotally supported.

A rod 9 surrounding the cylinder 7b of the hydraulic cylinder device 7 and integrally fixed thereto is reciprocatably movable and airtightly supported by a support member 10 adjacent to the right side of the glove box 5.

These supporting pieces 4a, the hydraulic cylinder device 7, the rod 9, and the supporting member 10Iri are covered by the cover 8.

The tip of this rod 9 is connected to the glove box 5.
The extrusion member 11 is fixed here while facing inside.

This extrusion member 11 has a substantially square shape when viewed from the front, and cutters 12 are fixed to its entire periphery.

The surface formed by the outer edges of the cutters 12 is slightly smaller than the opening 2a of the air filter wooden frame 2 described above.

Further, the extrusion member 11 has a vertical hole 1 that opens from the upper surface to the lower surface.
3 is formed, and this vertical hole (push hole) 13 is inserted into the wooden frame 2.
It is formed to be slightly wider than the cross section of the plate material 2b constituting the plate material 2b, so that the plate material 2b can be inserted vertically as described later.

The lower edge KH cutter 14 of this vertical hole 13 is fixed.

In addition, on the top surface of the base 4 in the glove box 5,
A receiver member 15 is installed opposite to the extrusion member 11.

This receiver member 15 is formed with an extrusion hole 16 through which the filter material 3 passes during extrusion, which will be described later.

The receiver has a pad 17 on the surface of the member 15 facing the extrusion member 11Vc so as to surround the extrusion hole 16;
A cutter 18 is attached.

That is, the upper edge and both side edges of the extrusion hole 16 are provided with pads 1.
The cutter 18 is attached to the lower edge of the extrusion hole 16 slightly above the lower edge of the extrusion hole 16. It is attached so that it protrudes from the top.

The opening surrounded by the pad 17 and the cutter 18 is formed to be slightly larger than the opening 2a of the wooden frame 2, and the end faces of the pad 17 and the cutter 18 are designed to protect the wooden frame 2 from each other, as will be described later. The receiver for receiving the plate constitutes the plate 20.

Furthermore, a pair of support members 21 and 21 for supporting the air filter 1 are provided between the receiver member 15 and the extrusion member 11.

This support member 21 is composed of a base 22, two sliders 23 provided on the lower surface of this base 22, and a pair of clamping pieces 24a and 24b provided upright on the upper surface of this base 22. There is.

The base portion 22 protrudes inward from the inner holding piece 24b, and the upper surface of this protrusion constitutes a first mounting portion 25 on which the air filter 1 is placed, as will be described later.

The pair of holding pieces 24a and 24b (ri) are each formed in a lattice shape, and between both ends thereof there is a second placing portion for placing the wooden frame 2 of the air filter, as will be described later. 26, 26 are formed.

This second mounting section 26 is higher than the first mounting section 25 described above.

Then, by fitting the slider 23 of this support member 21 into the slider receiver 27, the opposing support members 21
, 21 can be changed.

There are stoppers 28 at both ends of the slider receiver 27 in the housing.
a t 28 b is provided, thereby restricting movement of the support member 21.

What 29 is a limit switch, this switch 29
The detection element 30 is rotated by a protrusion 31 provided on one side of the support member 21 when the support member 21 is at its maximum level, and is thereby turned ON to detect the position of the support member 21. It has become.

Furthermore, on the upper surface of the base 4, a discharge hole 32 for discharging wood chips is formed in the vicinity of the tube member 15, as will be described later.

As shown in FIG. 10, the discharge hole 32t'i is formed at a position slightly shifted from the vertical hole 13 of the extrusion member 11 in the left-right direction when viewed from the front.

As shown in FIG. 3, a cylindrical body 33 is attached to the lower part of the discharge hole 32 and has a shape that expands downward.
A storage bag 34 is attached to cover the opening.

A storage box 35 is placed on the lower T/c of this storage bag 34.

2 and 3, a filter material discharge hole 36 is formed in the upper surface of the base 4 which is hung on the left side of the member 15, and a discharge duct 37 communicates with the lower part of this discharge hole 36. has been done.

Note that 38 is a door provided on the side of the base 4, and a part of the base 4 can be opened and closed by this door 38.

As is clear from FIG. 3, etc., the extrusion member 11 has a vertical hole 13.
It is configured to be reciprocated by a hydraulic cylinder device 7 in a direction substantially perpendicular to the horizontal direction.

Next, the operation of the device having the above configuration will be explained.

The first step is the extrusion step of the filter material 3, which is shown in FIGS. 7a and 7b.

That is, the support member 21.21 is connected to the outer stopper 28a.
, 28aK, and these supporting members 21, 2
Expand one interval to the maximum.

Then, the air filter 1 in the upright state is supported by each support member 21,
21, and placed between the inner clamping pieces 24b and 24b, and placed on the first placing portion 25.25.

The end surface of the wooden frame 2 of the air filter 1 is brought into contact with the receiving surface 20 of the receiving member 15.

After the air filter 1 is supported in this way, the push-out member 11 is moved to the left in the figure by the operation of the hydraulic cylinder device 7.

Then, the filter material 3 of the air filter 1 is inserted into the extrusion member 11
The extrusion force releases the adhesive state with the wooden frame 2, and the receiver passes through the extrusion hole 16 of the member 15, falls downward from the discharge hole 36 formed on the upper surface of the base 4, and passes through the discharge duct 37. It is stored in a storage section (not shown) provided outside the base 4.

Next, the second step will be explained based on FIGS. 8a, b, and c.

The second step is a step of dividing the wooden frame 2 from which the filter material 3 was separated in the first step described above into four plate materials 2b.

That is, the support member 21° 21 is moved to the inner stopper 28b.
, 28b move inward to minimize the distance between them.

Then, the wooden frame 2 is placed on these supporting members 21, 21 in a laid down state.

To explain in detail, two opposing sides of the wooden frame 2 are connected to each support member 2.
1, and its lower end is placed on the second mounting portion 26.

Further, one side of the wooden frame 2 is brought into contact with the surface 20 of the receiving member 15.

Then, the pressing member 11 is activated by the operation of the hydraulic cylinder device 7.
Move to the left and press the wooden frame 2 strongly.

As a result, the cutters 1 provided on both sides of the suppressing member 11
Cut the edge of wooden frame 2 with step 2.

At this time, the wooden frame 2 is placed at a high position because it is placed on the second mounting part 26, so that the required cutting line of the wooden frame 2 is placed within the range of the cutters 12 and 12 on both sides of the extrusion member 11. be able to.

During this cutting, the wooden frame 2 may be bent due to the pressing force of the extrusion member 11, and there is a risk that buckling may occur, especially at both sides.

However, both sides of the wooden frame 2 are attached to the clamping pieces 24 of the support member 21.
Since the wooden frame 2 is held between the wooden frame 2 and the wooden frame 2, there is no problem such as bending or buckling of the wooden frame 2.

Next, the third step is a step of cutting the opposite side of the wooden frame 2 to the one side cut in the second step, as shown in FIG.

That is, after the second step is completed, the wooden frame 2 is attached to the support member 2.
Pull it out from 1 and 21, turn it 180 degrees, and turn it again to the second
It is supported by the support member 21.21 in the same manner as in the step.

Then, the other side of the wooden frame 2 is cut by the force vines 12, 12 on both sides of the extrusion member 110.

In this way, the wooden frame 2 is divided into four plates 2b...

Next, in the fourth step, as shown in FIG. 10, the plate material 2b divided in the third step is further cut into thinner pieces.

That is, the plate material 2b is vertically inserted into the vertical hole 13 formed in the extrusion member 11.

In this state, the extrusion member 1 is pushed out by the operation of the hydraulic cylinder device 7.
1 to reciprocate.

Then, this extrusion member 11 is inserted into the extrusion hole 16 of the member 15.
When entering and leaving the receiver, the lower end of the plate material 2b is cut to a predetermined width by a cutter 18 provided at the lower end edge of the member 15 and a cutter 14 provided at the lower end edge of the vertical hole 13.

The cut pieces 2c fall from the discharge hole 32 and are stored in the storage bag 34.
stored inside.

Note that the vertical hole 13 of the extrusion member 11 and the discharge hole 32 formed on the upper surface of the base 4 are at positions shifted from each other when viewed from the front, as shown in FIG. (d) Before cutting, it is supported by the upper surface of the base 4, and after cutting, it falls tilting from one end as shown in Figure 10.

After the cut strip 2c falls, the plate material 2b stored in the vertical hole 13 moves downward by the width of the strip 2c due to its own weight, and then due to the forward movement of the extrusion member 11. disconnected again.

In this way, by reciprocating the extrusion member 11 many times, the plate material 2b is cut into a large number of strips 2c...

Since the filter material 3 taken out in the above-described process is stored and discarded after being melted, the storage space can be extremely small.

Note that the filter material 3 may be shredded, compressed, stored and disposed of.

In addition, a shredder and a compressor are installed at the bottom of the base 4, and a discharge hole 36 is installed.
The filter material 3 that has fallen from the machine may be immediately shredded and compressed by these machines.

On the other hand, the storage bag 34Fi containing the strips 2c is placed in a storage box 35 using a known bag-out method and taken out to the outside.

After this, the pieces 2c... are incinerated. In this way, the filter material 3 is separated from the wooden frame 2 and treated separately, and the wooden frame 2 is cut into pieces and incinerated, so that the storage space for storage and disposal can be extremely reduced.

Moreover, the first to fourth steps described above are performed using a common extrusion member 11. Since the receiver uses the member 15 and the support member 21, the device has a simple structure and can be made compact.
This also makes the device cheaper.

In addition, fewer parts are contaminated with radioactivity, making the work safer and easier to maintain and inspect.

Furthermore, since the device is small, it can be covered by the glove box 5, thereby reliably preventing radioactive contamination to the outside and allowing work to be performed safely.

Furthermore, since the cutting is not performed using a rotating blade, scattering of radioactive substances can be prevented, which further improves work safety.

Among them, air filter 1 and wooden frame 2 are assembled in each process.
-t This is done manually via the glove port 5b while using the hoist 5c inside the glove box 5 as an auxiliary means.

Moreover, the filter material 3 and the strips 2c can be taken out manually while isolating the radioactively contaminated air from the outside by using a WC bag-out method or the like, so safety and workability are taken into consideration.

As explained above, in the present invention, the wooden frame and the filter material can be separated by extruding the filter material using the extrusion member, so that the wooden frame and the filter material can be disposed of separately, making this process easy and convenient. It can be done cheaply.

Furthermore, the wooden frame can be cut into small pieces using an extrusion member and the receiver can be cut into small pieces by a cutter provided on a part of the member, thereby making it easier to dispose of the wooden frame.

Further, since common extrusion members and receivers are used in each step of the air filter disassembly process, the number of parts is small, and the apparatus can be made smaller.

Furthermore, since no rotating blade is used, scattering of cutting chips can be prevented.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1a is a front view of the air filter, b is a sectional view taken along line I-I in Fig. a, Fig. 2 is a plan view of the dismantling device, and Fig. 3 is a front view of the air filter. 4 is a sectional view taken along the line IV-IV in FIG. 2, FIG. 5 is a sectional view taken along the line ■-■ in FIG. 3, and FIG. FIG. 7 shows an outline of the first step, a is a partially sectional side view, b is a view of the support member viewed from the direction of movement of the extruded member, and FIG. The outline of the two steps is shown; a is a partially cross-sectional side view, b is a view of the support member seen from the direction of movement of the extruded member, C is a partially cross-sectional plan view, and Figure 9 shows the third step. The partially sectional plan view shown in Fig. 10 is the fourth
The process is shown, and a is a partially cross-sectional side view, and b is a view seen from the direction of the arrow X in figure a. 1... Air filter, 2... Wooden frame, 3
... Filter material, 11 ... Extrusion member,
12, 14... Cutter, 15... Receiver is member, 16... Extrusion hole, 18... Cutter, 20... Receiver. surface.

Claims (1)

[Scope of utility model registration request] A receiver disposed in the glove box 5 for receiving the cylindrical wooden frame 2 containing the filter material 3 has a member 15 and an insertion hole 13 for the plate material 2b constituting the wooden frame 2, and the receiver has the member 15.
The filter material 3 is inserted into the wooden frame 2 which is in contact with the wooden frame 2.
The receiver is the extrusion member 11 that is extruded into the extrusion hole 16 of the member 15.
, an extrusion drive device 1 that reciprocates the extrusion member 11 in a direction substantially orthogonal to the insertion hole 13 , and a first cutter that is provided at the peripheral edge of the extrusion member 11 and cuts the wooden frame 2 by the movement of the extrusion member 11 . 12, and a plate material 2 disposed at the edge of the insertion hole 13 of the extrusion member 11 and inserted into the insertion hole 13.
the second cutter 1 that cuts b by the movement of the extrusion member 11;
4. An air filter dismantling device characterized by comprising: