JPS6138649Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to the improvement of a filtration structure in sanitary equipment that filters dust-containing gas, separates dust, purifies the air, and returns it to the outside air. It is.

(Prior Art) Conventionally, in this type of filtration structure, as shown in Fig. 3, an inlet 31 for introducing dust-containing gas is placed on one side of the upper part, and a rotary valve is placed on the lower part for removing separated and trapped dust. A duct 36 having an outlet 35 for purified air is provided in the upper part by a partition plate 34 which divides the inside of the dust collection hopper 33 into upper and lower parts. A plurality of seats 37 having a plurality of openings in the vertical and horizontal directions are arranged in series on the plate 34, and each seat 37 has a cylindrical case 38 with an upper opening and a case 38.
A filter bag 39 coated so as to cover the entire surface is suspended from each seat 37, and a cap 40 is dropped into the seat 37 from the duct 36 side to support it, and high-pressure air is placed directly above the center of each cap 40. By arranging a pneumatic pipe 42 with a nozzle 41 projecting downward,
The load of the pneumatic tube 42 is applied to the cap 40 via a spring 43.

In the case of the above items, if a hole occurs in a part of the filter bag due to deterioration of the material structure of the filter bag over time or damage due to partial concentrated ventilation, etc. There was a disadvantage that the dust gas was dissipated into the atmosphere through the air duct and seriously polluted the air.

(Problem to be solved by this invention) The problem to be solved by this invention is to interpose the dust gas leaking from the damaged part of the filter bag between the separate air duct and the air duct, which are divided into three bags. The goal is to ensure that it is captured through a strainer.

(Means for solving the problem) An upper partition plate and a lower partition plate are provided between the upper air duct and the lower dust collection hopper to separate the upper and lower parts, and a large number of seats arranged in an opening shape are installed in the upper partition plate. Each seat of the lower partition plate is equipped with a plurality of cylindrical cases whose entire surfaces are covered with filter bags except for the opening at the upper end. Suspended from seats provided in series in the vertical and horizontal directions on the upper partition plate between the purified gas air duct and the lower dust collection hopper, on one side above the row of caps to which the housing and filter bag are fixed for each seat. A pneumatic tube is rotatably supported, and a tube having the same number of nozzles as the cap is protruded from the pneumatic tube, and each spring is connected to a spring for holding the cap through an arm installed perpendicular to the tube. It is designed to apply the weight of the technique.

(Example) Hereinafter, an example of this invention will be described in detail based on the drawings.

In the embodiment of this invention, as shown in FIGS. 1 and 2, a dust-containing gas filtration structure 1 includes an air duct 3 having a purified air outlet 2 at the upper part and a dust-containing gas filtration structure 1 at the lower part. It has a dust collection hopper 6 equipped with an inlet 4 for introducing the dust and a droplet 5 for removing the captured dust, and an upper partition plate 7 and a lower partition plate 8 are provided between the dust collection hopper 6 and the empty duct 3. The upper partition plate 7 and the lower partition plate 8 are provided with common seats 9 and 9' passing through them in the form of almost concentric openings, and each seat 9 is provided with a base 10 through a base 10. A strainer 11 covering the entire surface of the opening is removably arranged, and the strainer 11 may have a fine mesh. The separated air duct 12 is divided into a required volume by vertical surrounding walls 13, 13' for each seat 9', and each separated air duct 12 has a pneumatic pipe 14 penetrating the surrounding wall 13'. A technical pipe 15 (described later) is provided protruding from each separated air duct 12 of the pneumatic pipe 14, and the pneumatic pipe 14 is connected to the outer wall of the filtration structure 1 via bearings 16, 16'. It is supported for free rotation of approximately 90°. The technical pipe 15 has the nozzle part 17 bent at a substantially right angle to face the center of the seat 9'.
An arm 18 is provided to protrude laterally from the base of the seat 9', that is, horizontally at an angle of approximately 90 degrees with the nozzle portion 17.
The load of the tube 15 is applied via a spring 19 that elastically presses the cap 10' fitted in the tube. The gear 20 is connected to the pneumatic pipe 1
The gear 20 is attached to a part of the filtration structure 1 extending outside, and the gear 20' on the gear shaft 21 is engaged with the handle 22 at the end of the gear shaft 21.
By this operation, the pneumatic tube 14 is connected so as to be able to rotate back and forth through approximately 90 degrees.

The separately provided housing 23 has a vertically elongated cylindrical shape with an open top, and is provided with a flange portion 24 corresponding to the seat 9' on the upper periphery. The bag opening 26 of the filter bag 25 and the flange portion 24 of the housing 23 are locked to the seat 9', and the cap 10' is dropped onto it. It is fitted into the seat 9'.

Due to operation over time in the above configuration,
If a hole is created in the filter bag 25 due to deterioration of the material structure constituting the filter bag 25 or damage due to partial concentrated ventilation, and dust-containing gas is allowed to pass through, the filter bag 25 with the hole becomes For example, in the case of the filter bag 25a shown in FIG. The air then travels straight to the air and dissipates into the outside air through the outlet 2 shown in Figure 1. In this case, the dust in the dust-containing gas passing through the seat 9' is removed by a fine mesh strainer 11 that covers the entire opening of the seat 9'.
Because most of them are captured by the mesh of
The air discharged into the outside air through the outlet 2 is substantially purified. The discovery of the hole in the filter bag 25a can be easily recognized when the strainer 11 is inspected from the air duct 3 side because the mesh of the strainer 11 is significantly clogged.
Taro bag 2 that is damaged and unusable like this
5, stop the filtration operation and operate the handle 22 shown in FIG.
The pneumatic tube 14 is fixed to the pneumatic tube 14 because the upper gear 20' rotates and rotates the pneumatic tube 14 in the direction of arrow P in FIG. Each technique tube 15 is tilted upward in the same direction and retracted together with the arm 18 from above the mouthpiece 10'.
The spring 19, which has been compressed toward the base 10', is released using the arm 18. By retracting the technical tube 15 and the arm 18, all obstacles above and near the mouthpiece 10' are removed, so that operations such as removal and installation of the mouthpiece 10', the case 23, the filter bag 25, etc. can be carried out. can be done easily and quickly. After replacing the filter bag 25 that has been damaged by the above operations, the housing 23, the filter bag 25,
Restore the cap 10' in the reverse order, place the spring 19 on top of the cap 10', and then attach the handle 2.
2 in the opposite direction, pneumatic tube 14, technique tube 15
At the same time, the arm 18 is restored and the damaged filter bag 25 is replaced, and the seat 9 corresponding to the filter bag 25a is replaced.
Remove the strainer 11 from the base 9 and remove the cap 10.
After removing it from the tank, cleaning it, blowing air on it, and other cleaning methods to eliminate clogging, put it back in place.

(Effects) Since this device has the above configuration, it has the following advantages.

(1) An upper partition plate, a lower partition plate, an enclosing wall, etc. are installed between the dust collection hopper, which suspends a large number of cages whose entire surrounding area is covered with filter bags, and the air duct that discharges purified air. In addition to providing a plurality of separated air ducts that are separated from each other along the entire circumference of the upper, lower, and side surfaces, the individual separated air ducts are connected to each other through a strainer, so that it is possible to prevent clogging or dirtiness of any of the strainers. Not only can this be easily confirmed visually, but the effect of filtering and collecting dust-containing gas can be significantly enhanced by discovering the holes when they are small and replacing the filter bag at an early stage.

(2) Since the strainer is simply interposed at each seat of the air duct via a cap, cleaning work can be carried out extremely easily and quickly when clogging or dirt becomes severe.

(3) Compared to conventional products, even if a filter bag has a hole, the strainer can reliably capture dust, and the separation air duct can separate the damaged filter bag securely. This allows maintenance and inspection to be carried out efficiently.

[Brief explanation of the drawing]

Figure 1 is a vertical cross-sectional view of a dust-containing gas filtration structure equipped with the present invention, and Figure 2 is a Z-Z diagram in Figure 1.
FIG. 3, an enlarged plan perspective view of lines, is an explanatory diagram of the prior art. Explanation of symbols of main parts, 1...filtration structure, 3
...Air duct, 6...Dust collection hopper, 7...Upper partition plate, 8...Lower partition plate, 9,9'...Seat,
10, 10'...cap, 11...strainer, 1
2... Separated air duct, 13, 13'... Surrounding wall,
14...Pneumatic tube, 23...Casing, 25, 25a...
...filter bag.

Claims (1)

[Scope of utility model registration request] A cylindrical housing 23 with an open top is covered over its entire surface except for the top with filter bags 25 of the same shape. A filtration structure in which the seat 9' is suspended in the dust collection hopper 6 through the base 10', and a high-pressure air pneumatic pipe 11 is rotatably arranged on one side above the base 10' via a driving means. In the body 1, a plurality of separated air ducts 12 are formed which are vertically divided by the lower partition plate 8 and the upper partition plate 7 and separated from each other by a surrounding wall 13 for each cap 10, and the separated air An air duct 3 partitioned by the upper partition plate 7 is constructed above the group of ducts 12, and the air duct 3 and the separated air duct 12 are connected to the upper partition plate 7 by a plurality of air ducts facing the base 10'. It is supported on a seat 9 and communicated with a cap 10 that has a strainer 11 and covers the entire surface of the opening,
The filter bag 25 collects the purified air through the first filtration and dust collection, and the strainer 11 passes through the second filtration to collect the dust in the dust-containing gas leaking from the filter bag 25. A two-stage filtration device in a dust-containing gas filtration and collection mechanism characterized by cleaning.