JPS6227207Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a filter cloth for a dust collector mainly used in a small bag filter dust collector.

In small bag filter dust collectors with small cabinets, dust collector filter cloths in which a large number of flat bag-like filter cloths are arranged in parallel are widely used to increase dust collection efficiency. The first known filter cloth for this type of dust collector is one in which a large number of flat bag-shaped filter cloths are sewn together in parallel, but filter cloths for dust collectors that are widened to the size of the cabinet are also available. Therefore, in factories that use dust collectors with different processing capacities, that is, cabinet sizes, it is necessary to prepare filter cloths for each type of dust collector, and it is time-consuming to manage them. In short, also,
There is a drawback that if a part of the bag-like filter cloth is damaged, the entire bag-like filter cloth becomes unusable. On the other hand, a plurality of sets of filter cloth units each having a suitable number of flat bag-like filter cloths sewn in succession are arranged side by side in a cabinet with a frame-like packing portion formed on each rim. It is also known that the filter cloth unit is attached to the cloth frame using butterfly bolts, etc., but although the above-mentioned drawbacks are solved, each filter cloth unit is attached to the frame-like gasket formed on the edge of the filter cloth frame. The installation work is time-consuming because it has to be attached to the filter cloth frame in a narrow cabinet, and in addition, there is a space between the parallel filter cloth units that corresponds to the side frame portions of both filter cloth frames. This has the disadvantage that wasted space is created, which limits the number of bag-like filter cloths that can be used, and reduces dust collection efficiency.

The present invention was completed with the aim of creating a filter cloth for a dust collector that does not have the above-mentioned drawbacks.As shown in the illustrated embodiment, a unit filter cloth 1 consisting of an appropriate number of flat bag-like filter cloths 1' is used. A plurality of pairs of frame-shaped packing parts 2 are integrally formed on each mouth edge of the frame-shaped packing part 2. Adjacent side frame parts 2', 2' of the frame-shaped packing part 2 are superimposed and arranged in parallel, and the upper and lower parts 1 sandwich the frame-shaped packing part 2. It is characterized by having a pair of filter cloth frames 3 and 4 connected and integrated.
In addition, in the figure, 5 is a screw as one means for connecting and integrating the pair of upper and lower filter cloth frames 3 and 4 that sandwich the frame-shaped packing part 2, and 6 is a screw that is fitted into each bag-shaped filter cloth 1' as necessary. This is a corrugated sheet for shape preservation.

In this structure, a plurality of sets of unit filter cloths 1 each consisting of an appropriate number of flat bag-like filter cloths 1' are connected and integrated by filter cloth frames 4, 4, so that the cabinet Installation to the dust collector is completed by simply fixing the filter cloth frames 3 and 4 to the partition plate 10 that separates the dust-containing gas chamber 8 and the clean gas chamber 9 in No. 7 using fasteners 11 such as wing nuts. The unit filter cloth 1 is extremely easy to operate and replace, and the unit filter cloth 1, which is made by continuously sewing an appropriate number of flat bag-like filter cloths 1', has an extremely large filtration surface area. Since the adjacent side frame portions 2', 2' of the frame-shaped packing portion 2 integrally formed on the mouth edge are superimposed and arranged in parallel, the space between the unit filter cloths 1, 1 is also minimized. The total filtration surface area can be increased and the filtration efficiency can be increased.
Further, as described above, each unit filter cloth 1 is constructed by overlapping and juxtaposing the adjacent side frame portions 2', 2' of the flexible frame-shaped packing part 2 integrally formed therewith, and then attaching the frame-shaped packing part 2 in parallel. Since it is connected and integrated with a pair of upper and lower filter cloth frames 3 and 4 that sandwich the section 2, it is easy to attach to the filter cloth frames 3 and 4, and the dust seal is sufficient, preventing dust leakage. There is no fear at all. Note that the girder parts 3', 4' provided on the filter cloth frames 3, 4 so as to correspond to the side frame parts 2' of the frame-shaped packing part 2 are integrally formed with the peripheral frame parts 3'', 4'' as shown in the figure. In addition, the peripheral frame portion 3″,
It may be a separate item from 4''.

Therefore, the present invention has extremely high practical value as a filter cloth for dust collectors, which has extremely high filtration efficiency and is easy to install and assemble.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing an embodiment of the present invention, Fig. 2 is a partially cutaway front view of the main part, and Fig. 3 is a partially cutaway front view of a small bag filter dust collector using the present invention. It is. 1: Unit filter cloth, 1': Bag-shaped filter cloth, 2: Frame-shaped packing part, 2': Side frame part, 3: Filter cloth frame, 4:
Filter cloth frame.

Claims (1)

[Scope of utility model registration request] Adjacent side frame parts 2', 2' of a frame-shaped packing part 2 integrally formed on each mouth edge of a plurality of sets of unit filter cloths 1 consisting of an appropriate number of flat bag-like filter cloths 1'. A filter cloth for a dust collector, characterized in that a pair of upper and lower filter cloth frames 3 and 4 sandwiching the frame-shaped packing part 2 are interconnected and integrated, which are stacked and arranged in parallel.