JP3162672U - Filter cage for dust collector and filter bag assembly including the same - Google Patents

Abstract

Provided are a filter cage for a dust collector and a filter bag assembly including the same, which do not require a separate installation place in order to increase the surface area of a filter cloth for filtering. A filter bag assembly includes a filter cage and a filter bag. The filter cage includes a lower plate in which a through hole is formed on the inside, an upper plate disposed on the upper portion of the lower plate, corresponding to the through hole, and an outer support frame formed to extend upward along the edge of the lower plate. And an inner support frame that extends upward along the periphery of the through hole and is coupled to the upper plate. The filter bag includes a bottom surface portion supported by the lower plate, an outer side surface portion that extends upward along the edge of the bottom surface portion and is supported by the outer support frame, an upper surface portion that is supported by the upper plate, and an upper surface portion. And an inner side surface portion supported by the inner support frame. [Selection] Figure 2

Description

  The present invention relates to a dust collector filter cage applied to a dust collector and a filter bag assembly including the same, and more particularly to a dust collector filter cage capable of increasing dust collection efficiency and a filter bag assembly including the dust collector filter cage.

  This application claims the benefit of the filing date of utility model registration application No. 20-2009-11106 filed with the Korean Patent Office on August 26, 2009, the entire contents of which are included in this specification.

  In general, in cement, fiber, chemical and other manufacturing factories and metal processing factories, dust collectors are essential to prevent environmental pollution caused by exhaust gas, fine dust, and industrial waste discharged during manufacturing or processing. Is used.

  At this time, the dust collection capacity, size, weight, etc. of the filtration method by the filter bag are determined by the filter bag built in the filter bag. Although built-in, the number of built-in filter bags varies depending on the desired filtering efficiency.

  However, as the number of filter bags increases, not only does the size of the dust collector increase, but the facility area corresponding to that size is required. A wrinkle type filter bag having an increased surface area has already been proposed.

  Such a wrinkle-type filter bag has a relatively large surface area that can be filtered as compared to a filter bag having a smooth surface without wrinkles in the filter cloth, so the filter efficiency increases. Depending on the material of the filter cloth used, it is very troublesome to form wrinkles or to maintain the formed wrinkles so that only specific materials such as polyester are used. In addition, there is a disadvantage that the dust collection target or use place where the filter bag can be used is limited. For example, since polyester is very weak in alkalinity, it is difficult to use it in places where alkaline dust is discharged. In addition, dust collected between the wrinkles is not easily separated at the time of dedusting, thereby reducing dust collection efficiency.

  Due to the above-mentioned problems of the wrinkle-type filter bag, a filter bag for a dust collector that can be filtered without forming wrinkles in the filter bag and that can increase the surface area is disclosed in Korean Registered Patent No. 10-0790334.

The filter bag for the dust collector includes an outer filter cloth 33 and an inner filter cloth 34, and the inner filter cloth 34 is formed in a cone shape that decreases as the diameter increases.
Therefore, although the surface area that can be filtered by the internal filter cloth 34 is increased, the internal filter cloth 34 is disposed inside the external filter cloth 33 and does not require a separate installation space.

  However, in the dust collector filter bag described above, only the external filter cloth 33 is supported by the filter cage 31 and the form of the internal filter cloth 34 is not supported by a support structure such as the filter cage 31. At the time of dust removal for removing dust and the like attached to the outside, deformation of the cone-shaped inner filter cloth 34 may occur and local damage of the inner filter cloth 34 may occur.

  In addition, when the dust is removed, the inside of the filter cloth 34 is inclined so that the air pressure inside the filter bag does not become uniform as a whole.

  In addition, there is a problem in that dust adheres to the lower part of the cone-shaped inner filter cloth 34 and lowers the filtration efficiency. In particular, when the dust containing organic matter adheres to the lower part of the inner filter cloth 34, the rot caused by microorganisms Such problems may occur.

  In order to solve the above-mentioned conventional problems, the present invention provides a dust collector filter cage and a filter bag assembly including the same, which do not require a separate installation site in order to increase the surface area of the filter cloth for filtering. The purpose is to do.

  In addition, the present invention provides a filter cage for a dust collector that can support the filter bag as a whole so that it can be prevented from being damaged locally because part of the filter bag is not supported during dust collection or dedusting. And a filter bag assembly including the same.

  Another object of the present invention is to provide a filter cage for a dust collector and a filter bag assembly including the dust cage, which can prevent non-uniform dust removal because the air pressure inside the filter bag is not uniform as a whole. .

  In order to achieve the above object, the present invention provides a lower plate having a through hole formed therein, an upper plate disposed on an upper portion of the lower plate, and disposed along an edge of the lower plate corresponding to the through hole. An outer support frame that extends upward from the lower plate, and a filter cage that includes an inner support frame that is disposed along the periphery of the through hole and extends upward from the lower plate and is coupled to the upper plate; A bottom surface corresponding to the lower plate, supported by the lower plate, extending upward along the edge of the bottom surface, supported by the outer support frame, and an upper surface supported by the upper plate; A filter bag including an inner side surface portion extended between the upper surface portion and the bottom surface portion and supported by the inner support frame. It provides an assembly.

  In the present invention, since the inner side surface portion of the filter bag is disposed inside the outer side surface portion and no separate installation space is required for the inner side surface portion, the surface of the filter bag is increased and the dust collection efficiency is increased. However, the installation area does not increase, which has the advantage that the space utilization of the dust collector is high.

  In addition, since all of the inner side surface portion and outer side surface portion of the filter bag are supported by the filter cage, it is possible to prevent local damage because part of the filter bag is not supported during dust collection or dust removal. Have.

  In addition, the inner side surface portion and the outer side surface portion are arranged side by side, and the air pressure inside the filter bag acts uniformly on the whole so that the dust is uniformly removed.

It is sectional drawing for demonstrating the filter bag for conventional dust collectors. 1 is an exploded perspective view illustrating a filter bag assembly for a dust collector according to a preferred embodiment of the present invention. FIG. 3 is a cross-sectional view illustrating a dust collection state and a dust removal state of a filter bag assembly according to a preferred embodiment of the present invention. FIG. 3 is a cross-sectional view illustrating a dust collection state and a dust removal state of a filter bag assembly according to a preferred embodiment of the present invention.

  A filter bag assembly for a dust collector according to the present invention is disposed along a lower plate having a through hole formed therein, an upper portion of the lower plate, an upper plate corresponding to the through hole, and an edge of the lower plate. An outer support frame extending upwardly from the lower plate; and a filter cage including an inner support frame disposed along the periphery of the through hole and extending upward from the lower plate and coupled to the upper plate; A bottom surface corresponding to the plate, supported by the lower plate, extending upward along the edge of the bottom surface and supported by the outer support frame, an upper surface supported by the upper plate, and an upper surface A filter bag including an inner side surface portion that is extended between the bottom portion and the bottom surface portion and is supported by the inner support frame. To.

The filter bag assembly for a dust collector according to the present invention includes a coupling member that penetrates the upper plate and the upper surface portion and is mutually coupled.
In addition, the filter bag assembly for the dust collector according to the present invention includes a connection frame that interconnects the upper plate and the outer support frame.

  On the other hand, the filter cage supporting the filter bag so as to maintain the shape of the filter bag for dust collection and dedusting according to the present invention is a lower plate having a through hole formed inside; An upper plate corresponding to the through hole; and an outer support frame disposed along the edge of the lower plate and extending upward from the lower plate; disposed along the periphery of the through hole and above the lower plate And an inner support frame coupled to the upper plate.

  In addition, a filter cage according to the present invention includes a coupling member that interconnects an upper plate and a filter bag supported by the upper plate.

  Hereinafter, a filter bag assembly 10 for a dust collector according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. However, the following embodiments are for illustrating the present invention, and the scope of the present invention is not limited by the embodiments described in detail below.

FIG. 2 is an exploded perspective view illustrating a filter bag assembly 10 for a dust collector according to a preferred embodiment of the present invention.
As shown in FIG. 2, the filter bag assembly 10 for a dust collector according to the present embodiment includes a filter cage 100 including a plate and a frame for supporting the filter bag 200, and a filter bag 200 for collecting and removing dust. Including.

  The filter cage 100 includes a lower plate 110, an upper plate 120, an outer support frame 130, an inner support frame 140, and a connection frame 150.

  The lower plate 110 has a predetermined area, and can be provided in the form of a polygon such as a square, a trapezoid, or a rhombus. In the present embodiment, the lower plate 110 is provided in a circular shape, and has a through-hole inside thereof. 112 is formed. In addition, the through hole 112 can be provided in a polygonal shape or a circular shape as in the case of the lower plate 110, and the shape of the through hole 112 is provided in a circular shape as in the lower plate 110 in this embodiment. Some can be provided in other forms.

  The upper plate 120 is provided in a form corresponding to the shape of the through hole 112 of the lower plate 110. In the present embodiment, the upper plate 120 is provided in a circular shape corresponding to the circular through hole 112, and the diameter of the upper plate 120 is a through hole. Provided at about the inner diameter of the hole 112.

A plurality of outer support frames 130 are arranged along the peripheral edge of the lower plate, that is, along the edge, and are extended upward from the lower plate 110.
At this time, the outer support frame 130 of the present embodiment has a length that is roughly similar to the distance between the upper plate 120 and the lower plate, but may be longer or shorter depending on circumstances.

  A plurality of inner support frames 140 are arranged along the periphery of the through hole 112 inside the outer support frame 130, extend upward from the lower plate 110, and are coupled to the edge of the upper plate 120.

  At this time, since the inner diameter of the through hole 112 and the diameter of the upper plate 120 are substantially the same, the outer support frame 130 and the inner support frame 140 can be arranged side by side. This is so that an outer side surface portion 230 and an inner side surface portion 240 of the filter bag 200, which will be described later, are arranged side by side and supported, and thereby, a uniform air pressure is applied over the entire filter bag 200 during dust removal. This increases the dust removal efficiency.

  In addition, the connection frame 150 may be welded at both ends to the outer periphery of the upper plate 120 and the upper end of the outer support frame 130 so as to interconnect the upper plate 120 and the outer support frame 130.

  The filter bag 200 for collecting and removing dust includes a bottom surface portion 210, an outer side surface portion 230, an upper surface portion 220, and an inner side surface portion 240.

  The bottom surface portion 210 is provided in a circular shape corresponding to the lower plate 110 and is supported in close contact with the bottom surface of the lower plate 110.

  The outer side surface portion 230 extends upward along the edge of the bottom surface portion 210, that is, the outer periphery, and is supported by the outer support frame 130 outside the outer support frame 130.

  The upper surface part 220 is supported by the upper plate 120 and is provided in a circular shape similar to the through hole 112.

  The inner side surface portion 240 extends between the upper surface portion 220 and the bottom surface portion 210 and is supported by the inner support frame 140 inside the inner support frame 140.

  On the other hand, in the filter bag 200 of the present embodiment, the bottom surface portion 210, the outer side surface portion 230, the upper surface portion 220, and the inner side surface portion 240 are connected to each other. Specifically, a material such as filter cloth or cloth is used. The bottom surface portion 210, the outer side surface portion 230, the upper surface portion 220, and the inner side surface portion 240 of the filter bag 200 can be joined using a stitch or a separate adhesive.

The filter bag 200 can be fitted and coupled from the lower side of the filter cage 100, and the filter bag 200 coupled to the filter cage 100 has an outer side surface portion 230 having a diameter of the bottom surface portion 210 forming one cylinder, and an upper surface. An inner side surface portion 240 having a diameter of the portion 220 forms another cylinder.
That is, the inner side surface portion 240 is located inside the outer side surface portion 230, so that a separate installation space for the inner side surface portion 240 is not necessary, and the filtering area can be increased. Can be increased.

3 and 4 are cross-sectional views showing the dust collection and dedusting states of the filter bag assembly 10 according to a preferred embodiment of the present invention.
The dust collection state will be described with reference to FIG. 3. Dust that has flowed into the dust collector is removed by the filter bag 200 of the present invention. At this time, the dust is removed from the surface of the outer side surface 230 and the inner side surface. Since dust is collected through the surface of 240, the surface area for dust collection is significantly larger than that of a conventional filter bag of the same size. On the other hand, the outer side surface portion 230 and the inner side surface portion 240 are supported by the outer support frame 130 and the inner support frame 140, respectively, and their forms are not deformed.

  The dust removal state will be described with reference to FIG. 4. In the dust collection process, the dust adhered to the surface of the outer side surface portion 230 and the inner side surface portion 240 of the filter bag 200 is the inner side surface portion 240 and the upper surface portion 220. Are removed periodically or as needed by the air supplied to the space formed between the two.

  As described above, since the inner side surface portion 240 and the outer side surface portion 230 of the filter bag 200 are all supported by the filter cage 100, even when high-pressure air passes through the filter bag 200 during dust collection or dust removal, the filter bag The shape of 200 is not deformed, and it can be prevented from being deformed or damaged by the flow of high-pressure air.

  Further, the inner side surface portion 240 and the outer side surface portion 230 are arranged side by side, and the air pressure inside the filter bag 200 acts uniformly as a whole, whereby a filter close to an injection nozzle that injects high-pressure air when dust is removed. All dust is uniformly removed from the upper part of the bag 200 and the lower part of the filter bag 200 that is relatively far from the spray nozzle.

  Meanwhile, a coupling member 160 that can prevent the upper surface portion 220 of the filter bag 200 from drooping downward from the upper plate 120 of the filter cage 100 is provided. In the present embodiment, a hole 122 is formed in the upper plate 120 to form the upper surface portion. 220 is formed with a separate hole 222 corresponding to the hole 122, and then a bolt that passes through the holes (122, 222) and a nut that is screwed to the bolt and tightly contacts the upper surface portion 220 and the upper plate 120. Thus, the filter bag 200 and the filter cage 100 can be coupled to each other.

  Although the present invention has been described in detail through the preferred embodiments as described above, the present invention is not limited to the embodiments described herein, and those skilled in the art may Obviously, various modifications and variations can be made without departing from the spirit and scope. Therefore, such modifications or variations should be considered as belonging to the claims of the present invention.

DESCRIPTION OF SYMBOLS 10 ... Filter bag assembly for dust collectors 100 ... Filter cage 110 ... Lower plate 112 ... Through-hole 120 ... Upper plate 130 ... Outer support frame 140 ... Inner support frame 160 ...・ Coupling member 200 ・ ・ ・ Filter bag 210 ・ ・ ・ Bottom surface portion 220 ・ ・ ・ Top surface portion 230 ・ ・ ・ Outer side surface portion 240 ・ ・ ・ Inner side surface portion

Claims (6)

A filter bag assembly for a dust collector,
A lower plate having a through-hole formed on the inner side thereof, disposed at an upper portion of the lower plate, and disposed along an edge of the lower plate corresponding to the through-hole and the lower plate, and extends upward from the lower plate An outer support frame formed; and a filter cage disposed along the periphery of the through hole, extending upward from the lower plate, and including an inner support frame coupled to the upper plate;
Corresponding to the lower plate, supported by the upper plate, a bottom surface portion supported by the lower plate, an outer side surface portion extending upward along an edge of the bottom surface portion, and supported by the outer support frame. A filter bag including an upper surface portion and an inner side surface portion extended between the upper surface portion and the bottom surface portion and supported by the inner support frame;
Including filter bag assembly for dust collector.   The filter bag assembly according to claim 1, further comprising a coupling member penetrating the upper plate and the upper surface portion and interconnecting each other.   The filter bag assembly of claim 1, further comprising a connecting frame that interconnects the upper plate and the outer support frame.   The filter bag assembly according to claim 1, wherein the outer support frame and the inner support frame are aligned with each other. A filter cage that supports the filter bag to maintain the form of the filter bag for dust collection and dedusting,
A lower plate having a through hole formed inside;
An upper plate disposed on the lower plate and corresponding to the through hole;
An outer support frame disposed along an edge of the lower plate and extending upward from the lower plate;
An inner support frame disposed along the periphery of the through hole, extending upward from the lower plate, and coupled to the upper plate;
A filter cage comprising:   The filter cage according to claim 5, further comprising a coupling member that interconnects the upper plate and the filter bag supported by the upper plate.

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