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KR-20260064034-A - A lower cap for dust collector filter and cartridge filter having that lower cap

KR20260064034AKR 20260064034 AKR20260064034 AKR 20260064034AKR-20260064034-A

Abstract

A bottom cap for a dust collector filter and a filter structure having the same are disclosed for collecting and separating dust and pollutants. The bottom cap for a dust collector filter according to the present invention comprises a circular bottom portion and a perimeter portion connected to the bottom portion, wherein a cartridge filter member is fitted into the interior of the perimeter portion and joined by an adhesive, and a main body portion for supporting and fixing the cartridge filter member; wherein a circular first fixing plate is attached to the central portion of the bottom portion of the main body portion, a cylindrical protrusion protruding to a predetermined height is formed around the first fixing plate, and a donut-shaped second fixing plate is formed at the edge of the protrusion. According to the present invention, a circular first fixing plate is attached to the central portion of the bottom portion of the main body portion, a cylindrical protrusion protruding to a predetermined height is formed around the first fixing plate, and a donut-shaped second fixing plate is formed at the edge of the protrusion, so that when the filter and the bottom cap are combined, the adhesive permeates into the lower part of the second fixing plate and hardens, thereby enabling a robust connection between the filter bag and the bottom cap.

Inventors

  • 황영운

Assignees

  • (주)대성휠타테크

Dates

Publication Date
20260507
Application Date
20241031

Claims (7)

  1. A bottom cap that combines with a cartridge filter element of a dust collector filter that collects and separates dust and pollutants, A main body portion comprising a circular bottom portion and a perimeter portion connected to the bottom portion, wherein the cartridge filter member is fitted into the interior of the perimeter portion and joined by an adhesive, and which supports and fixes the cartridge filter member; A bottom cap for a dust collector filter, characterized in that a circular first fixing plate is attached to the central part of the bottom portion of the main body, a cylindrical protrusion protruding to a predetermined height is formed around the first fixing plate, and a donut-shaped second fixing plate is formed at the edge of the protrusion.
  2. In paragraph 1, A bottom cap for a dust collector filter, characterized in that the second fixing plate is formed to be spaced apart from the bottom part, so that when the filter member and the main body are combined, the adhesive permeates into the spaced portion between the bottom part and the second fixing plate and hardens.
  3. In paragraph 2, A bottom cap for a dust collector filter, characterized by allowing the adhesive to cure in a state where it seeps between the second fixing plate and the bottom part when the cartridge filter member and the main body are combined, thereby ensuring a strong connection between the filter bag and the bottom cap.
  4. In paragraph 3, A bottom cap for a dust collector filter, characterized in that the first fixing plate and the bottom part of the main body can be welded or fixed with rivets or bolts.
  5. In paragraph 4, The first fixed plate has a diameter of 3-5 cm, and the protrusion has a height of 0.7-1.2 cm, forming a bottom cap for a dust collector filter.
  6. In paragraph 5, A bottom cap for a dust collector filter, wherein the width between the outer and inner perimeters of the second fixed plate is 0.8-1.4 cm.
  7. In a filter structure for a dust collector filter that collects and separates dust and pollutants, A filter structure for a dust collector filter characterized by including a bottom cap for a dust collector filter as described in any one of claims 1 to 6.

Description

A lower cap for a dust collector filter and a filter structure having the same The present invention relates to a bottom cap for a dust collector filter and a filter structure having the same. In particular, the invention relates to a bottom cap for a dust collector used in a dust collector, wherein a circular first fixing plate is attached to the central part of the bottom portion of the bottom cap, a cylindrical protrusion protruding to a predetermined height is formed around the first fixing plate, and a donut-shaped second fixing plate is formed at the edge of the protrusion, so that the second fixing plate is spaced apart from the bottom portion, so that when the filter and the bottom cap are combined, an adhesive permeates into the spaced portion between the bottom portion and the second fixing plate and hardens, thereby ensuring a strong connection between the filter bag and the bottom cap. The following description merely provides background information related to the present invention and does not constitute prior art. A dust collector is a type of air purification device that filters gases containing dust and other particles, and then either reintroduces them into the indoor space or discharges them to the outside. The general structure of a dust collector consists of an intake chamber, an exhaust chamber, an intake port, an exhaust section, multiple cartridge filters coupled to tube seat holes, a compressed air supply pipe, injection nozzles, etc. The intake and exhaust chambers within the housing are separated by a bulkhead. Gas entering the intake chamber through the intake port is filtered of dust and other particles by multiple cartridge filters before moving to the exhaust chamber. The gas in the exhaust chamber then flows into the indoor space or is discharged to the outside through the exhaust section. Multiple dust collection filters are installed in the dust collector. Dust collection filters need to be heat-resistant as required to withstand heated gases, and their surface area is formed to be as large as possible to increase filtering efficiency. Cartridge filters are an example of filters with a large surface area. Figures 1 and 2 are drawings showing a conventional cartridge filter in a combined state. As shown in FIGS. 1 and 2, a conventional cartridge filter includes a cartridge filter bag (10), a band (21, 22, 23), upper and lower caps (31, 32), an adhesive (41, 42), and a support mesh (50). In the cartridge filter bag (10), a plurality of peaks and valleys are formed to increase the surface area. One or more bands (21, 22, 23) are attached to the outer circumference of the cartridge filter bag (10). The bands (21, 22, 23) maintain the shape of the cartridge filter bag (10) and suppress deformation of the cartridge filter bag (10) when high-pressure compressed gas is applied to the cartridge filter bag (10). The upper cap (31) and the lower cap (32) are respectively attached to the upper and lower ends of the cartridge filter bag (10) to support and secure the multi-stage cartridge filter bag (10). An adhesive is applied to the inside of the bottom cap (32), and when the bottom part of the cartridge filter bag (10) is inserted into the inside of the bottom cap (32), the cartridge filter bag (10) and the bottom cap (32) are bonded together by the adhesive. The support wire mesh (50) serves to support the filter bag (10) so that it does not sink inward and maintains its original shape. The bottom cap (32) is typically made of metal. Meanwhile, when the lower part of the cartridge filter bag (10) is inserted into the interior of the lower cap (32), the cartridge filter bag (10) and the lower cap (32) are bonded together by the adhesive as they harden. However, there is a problem in that the adhesive on the bottom cap (32) generally shrinks and hardens, causing it to separate from the filter bag (10), and when applied to and operated in a dust collector, continuous impact through jet pulsing is applied to the bottom cap (32), causing a serious problem in which the filter bag (10) and the bottom cap (32) separate. In particular, multiple filter structures are applied to a conventional dust collector, and there is a problem that the entire dust collector must stop operating when the filter bag (10) and the bottom cap (32) are separated from one of the filter structures, so a solution to this is urgently needed. Figure 1 is a drawing showing a conventional cartridge filter in a combined state. Figure 2 is a drawing showing a filter structure having a bottom cap for a conventional dust collector filter. FIG. 3 is a drawing showing a filter structure having a bottom cap for a dust collector filter according to a first embodiment of the present invention. FIG. 4 is a drawing showing a bottom cap for a dust collector filter according to the first embodiment of the present invention. FIG. 5 is an exploded perspective view of a bottom cap for a dust collector filter according to the first embo