JPH06170136A - Bag retainer for dry dust collector - Google Patents

Abstract

PURPOSE:To make the space of the upper part of a bag room used when assembling and replacing of filter fabric are performed small and to make a dust collector compact. CONSTITUTION:In a bag retainer for a dry dust collector which is arranged in cylindrical filter fabric and retains the shape of the filter fabric 1, a retainer main body 2 formed into a cylindrical shape with a plurality of ring bodies 3 and connecting materials 4 connected with a plurality of positions on the periphery of this ring body 3 along the shaft center direction, are divided into a plurality of parts and one end part of each of these retainer divided bodies 5 is contracted in its diameter to form a connecting part 6 with a contracted diameter fixed with a ring body 3 with a contracted diameter. In addition, a receiving ring body is fixed on another end part of the retainer divided body 5 to form a part 7 to be connected where the connecting part with a contracted diameter can be inserted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retainer for holding a bag filter for removing dust and dust from exhaust gas in a dry dust collector arranged in a refuse incineration facility or the like.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 7, a bag filter 21 for filtering exhaust gas is hung from a bag mounting hole D in a partition wall C of a bag chamber A and a clean gas discharge chamber B into the bag chamber A. A retainer (middle bone) 23 is arranged inside in order to maintain the shape of the filter cloth 22. For example, the retainer 23 for fixing the filter cloth of the pulse type bag filter has a diameter of 4 to 5 mm.
With the steel round bar of No. 3, a circular ring body 23a having a diameter of about 160 mm to 200 mm and a plurality of connecting wire rods 23b in the axial direction connecting these ring bodies 23a are integrally assembled into a cylindrical shape. It was inserted and fixed in the filter cloth 22 formed in the shape of a circle.

[0003]

However, since the above-described conventional retainer is integrally assembled, when the bag filter 21 is incorporated in the bag chamber A or when the filter cloth is replaced, the bag mounting hole of the partition wall C is attached. When the bag filter 21 is pulled out from D, a space above the height H of the retainer 23 is required in the clean gas discharge chamber B in the clean gas discharge chamber B above the bag chamber A. Will occupy a volume close to. Further, in recent years, the dust collector tends to become larger and larger, and if the height of the filter cloth and the retainer reaches 6 to 8 m, it becomes a problem particularly when installed indoors. Further, the dust collector as a whole is required to be compact, and therefore it is desirable that the space above the bag chamber is small.

The present invention solves the above problems and provides a dry dust collector bag retainer which can reduce the space above the bag chamber used for assembling and replacing the filter cloth, and can promote compactification of the dust collector. The purpose is to provide.

[0005]

In order to solve the above-mentioned problems, the first structure of the bag dust retainer of the dry dust collector of the present invention is arranged in a tubular filter cloth to maintain the shape of the filter cloth. In a baggage retainer for a dry dust collector, a plurality of retainer bodies formed in a tubular shape by a plurality of frame-shaped bodies and connecting members connected to a plurality of locations around the frame-shaped bodies along the axial direction are provided in the axial direction. And a connecting member at one end of the retainer divided body is reduced in diameter to form a reduced diameter connecting portion to which a frame-shaped body is attached, and the reduced diameter connecting portion is provided near the other end of the retainer divided body. Is formed with a frame-shaped body into which is fitted.

The second configuration is a bag dust retainer for a dry type dust collector which is disposed in a tubular filter cloth and retains the shape of the filter cloth. A retainer main body formed in a cylindrical shape with a connecting member connected along the axial direction is divided into a plurality of parts in the axial direction, and the frame-like members are provided near the ends of these retainer divided bodies, respectively. While forming a connecting convex portion on one end, forming a connecting concave portion that can be fitted to the connecting convex portion on the other end,
A retainer for connecting and fixing the ends of the retainer divided body to each other is provided.

[0007]

According to the above construction, the retainer main body is divided into a plurality of pieces along the axial direction, and the end portions of the retainer divided bodies are divided into the reduced diameter connecting portion and the connected portion or the connecting concave portion and the connecting convex portion. Since it is configured to be connectable and separable via the above, when attaching the bag filter by hanging it from the upper space to the bag chamber, it is possible to assemble and insert it into the bag chamber while connecting from the lower retainer division. When replacing the filter cloth of the bag filter that hangs from the upper space into the bag chamber, it can be lifted up and taken out from the bag chamber while separating it from the upper retainer divisions one after another. The bag filter can be attached and removed even if there is no space. Therefore, the space above the bag chamber can be reduced, and the dust collector can be made compact.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a dry dust collector bag retainer according to the present invention will be described below with reference to FIGS.

In the bag chamber A to which the exhaust gas pipe of the refuse incinerator is connected, a partition wall C provided between the bag chamber A and the clean gas discharge chamber (the bag filter attachment / detachment space) above it.
, A plurality of bag filters are hung on the side of the bag chamber A through the bag mounting holes D, and the filter cloth is placed in the outer periphery of these bag filters and the bottom of which is closed. A retainer body 2 that holds the cylindrical shape of the cloth 1 is provided. The retainer body 2 is formed of a round bar having a diameter of 4 to 5 mm, and has ring bodies (frame-like bodies) 3 arranged at predetermined intervals in the axial direction (height direction), and the ring body 3
The retainer body 2 is formed into a cylindrical shape with the connecting member 4 connected to the outer peripheral portion of the retainer body 2 at regular intervals, and the internal space of the retainer body 2 is directly communicated with the clean gas discharge chamber B side. Further, the retainer body 2 is constituted by a retainer division body 5 which is divided into a plurality of pieces in the axial direction and can be assembled and separated from each other.

That is, the lower end portion of the retainer divided body 5, which is obtained by cutting the connecting member 4 on a plane orthogonal to the axis, has the connecting member 4
Is formed on the center side through a stepped portion 4a bent into an L shape, and a reduced diameter portion 4b is formed. A reduced diameter ring body 3a is attached to the inner peripheral side of the reduced diameter portion 4b to reduce the diameter. The connection portion 6 is formed. On the other hand, at the upper end of the connecting member 4 of the retainer division body 5, the receiving ring body 3 into which the connecting portion 4b can be fitted.
A connected portion 7 to which b is attached is provided. Further, a handle 8 for pushing in or separating the retainer division body 5 at the time of attachment / detachment is attached between the connecting members 4 at the upper position of the retainer division body 5 at the facing position. The diameter-reduced portion 4b of the connecting member 4 is slightly inclined toward the outer peripheral side toward the tip so that it does not come off. Also, the lowermost retainer division body 5a
The connecting portion 6 is not formed at the lower end of the, but is formed in a straight shape.

In the above structure, when the bag filter is attached by inserting it from the clean gas discharge chamber B into the bag chamber A through the bag attachment hole D of the partition wall C, first, the retainer division body 5 at the bottom is filtered. The retainer divided body 5 is inserted into the tip end of the retainer divided body 5, and the connecting portion 6 of the upper retainer divided body 5 is fitted and connected and fixed to the connected portion 7 at the upper end of the lowermost retainer divided body 5, and the retainer divided bodies 5 are sequentially connected. Then, the filter cloth 1 is inserted into the bag chamber A together with the retainer divided body 5 at the uppermost stage to assemble the retainer body 2, and then the filter cloth 1 is fixed to the retainer body 2 and the retainer body 2 Partition wall C with filter cloth 1
Fixed to.

Further, when the filter cloth 1 is replaced, the retainer main body 2 is separated in the reverse order of the above, and the retainer division body 5 is taken out from the bag chamber together with the filter cloth 1 to the clean gas discharge chamber B side in sequence. Good.

According to the structure of the first embodiment described above, the retainer division body 6 on the lower stage side is fitted or separated from the retainer division body 5 on the upper stage side via the diameter-reduced connecting portion 6 and the connected portion 7. Since the bag filter can be attached and detached, the bag filter can be assembled and maintained even if the height of the clean gas discharge chamber B into which the bag filter is inserted and removed is low.

Next, a second embodiment will be described with reference to FIGS. The same members as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted. Connecting material 11 of retainer division body 5
Is formed of a pipe, and a connecting pin (connecting convex portion) 12 is projectingly provided at the upper end of each connecting member 11 in the length direction of the connecting member 11, and the connecting pin 12 can be fitted at the lower end thereof. The connection hole (connection recess) 13 is the hole portion 1 of the connection material 11.
A plurality of retainer division bodies 5 are formed along 1a and are configured to be vertically connectable and separable. And, in the end ring bodies 14a and 14b attached near the end,
A fixing spring (fixing tool) 15 or a hook is detachably connected to fix the connected retainer divided bodies 5 to each other.

According to the above structure, the retainer division body 5 on the lower stage side is connected and separated from the retainer division body 5 on the upper stage side via the connecting pin 12 and the connecting hole 13, and the end ring bodies 3c and 3d are formed. By attaching and detaching the fixing spring 14 between them, the retainer separating bodies can be connected and separated from each other,
Even if the height of the clean gas discharge chamber B where the bag filter is inserted into and removed from the bag chamber A side is low, the bag filter can be assembled and maintained.

In the above embodiment, the frame-shaped body is a circular ring body, but it may be a triangle, a quadrangle, or a polygon.

[0017]

As described above, according to the bag retainer of the dry dust collector of the present invention, the retainer main body is divided into a plurality of pieces along the axial direction, and the ends of the retainer divided bodies are connected to the reduced diameter connection portion. Since it is configured to be connectable and separable through the connected part or the connecting concave part and the connecting convex part, the retainer splits when installing the bag filter hanging from the upper space part into the bag chamber or replacing the filter cloth. The bag filter can be attached to or detached from the space while assembling or separating the body, and the bag filter can be attached and detached even if there is no large space above the bag chamber. Therefore,
The space above the bag chamber can be made smaller, and the dust collector can be made more compact.

[Brief description of drawings]

FIG. 1 is a partial vertical sectional view showing a first embodiment of a bag retainer according to the present invention.

FIG. 2 is a sectional view taken along line I-I shown in FIG.

FIG. 3 is an overall configuration diagram showing the bag retainer.

FIG. 4 is a partial vertical sectional view showing a second embodiment of the bag retainer.

5 is a sectional view taken along line II-II shown in FIG.

FIG. 6 is a partial vertical cross-sectional view showing a connecting portion of a connecting member of the bag retainer.

FIG. 7 is a schematic perspective view showing a conventional bag retainer.

[Explanation of symbols]

 A bag chamber B clean gas discharge chamber 1 filter cloth 2 retainer body 3 ring body (frame-shaped body) 3a reduced diameter ring body 3b receiving ring body 4 connecting material 4a stepped portion 4b reduced diameter connection portion 5 retainer split body 6 reduced diameter connection Part 7 Connected part 11 Connecting material 11a Hole part 12 Connecting pin (connecting convex part) 13 Connecting hole (connecting concave part) 14 Fixing spring (fixing tool)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kanshi Ohta, 5-3-8 Nishikujo, Konohana-ku, Osaka-shi, Osaka, Hitachi, Ltd. (72) Naoko Hirata, Inventor Naoko Hirata, Nishi-kujo, Nishinojo, Osaka, Osaka 3-28, Hitachi Shipbuilding Co., Ltd.

Claims (2)

[Claims] 1. A bag-type retainer for a dry dust collector, which is arranged in a tubular filter cloth and retains the shape of the filter cloth, wherein a plurality of frame-shaped bodies and a plurality of locations around the frame-shaped bodies are arranged along the axial direction. The retainer body, which is formed into a tubular shape with the connecting material that has been connected in the axial direction, is divided into multiple parts in the axial direction, and the connecting material at one end of the retainer divided body is reduced in diameter to attach a frame-like body. A bag dust retainer for a dry dust collector, which is formed at a connection portion and has a connection portion formed with a frame-like body into which the reduced diameter connection portion can be fitted is formed near the other end of the retainer divided body. 2. A bag dust retainer for a dry dust collector, which is arranged in a tubular filter cloth and retains the shape of the filter cloth, wherein a plurality of frame-shaped bodies and a plurality of locations around the frame-shaped bodies are arranged along the axial direction. The retainer body formed in a cylindrical shape with the connecting material connected by
The retainer divided body is divided into a plurality of parts in the axial direction, the frame-like bodies are provided near the ends of the retainer divided bodies, and a connecting protrusion is formed on one end of the connecting member, and the connecting protrusion is formed on the other end. And a fixing tool for connecting and fixing the ends of the retainer divided body to each other.