JP2002282637A - Filter cleaning method for dust collector and dust collector with filter cleaning function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filter cleaning method for a dust collector devised so as to simply and cleanly shake off dust mixed with fume or oil component or the like stuck to a filter, in such a state that the filter is suspended as it is in a dust collection chamber without being detached from the dust collector, and the dust collector with a filter cleaning function. SOLUTION: The wall panel 10 constituting one side wall of the dust collection chamber 1X is detached and a cleaning wall panel 20 or 30 is attached in place of the wall panel 10 and a part of the cleaning wall 20 or 30 is constituted of a transparent panel 22 or a transparent sheet 31 and nozzle insertion parts 21H and 31H having a slit structure or an insertion hole structure are provided to the panel 22 or the sheet 31.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter cleaning method suitable for use in a dust collecting apparatus having a filtering function of filtering a dust-containing airflow with a filter and a dust removing function of removing dust adhering to the filter. The present invention relates to a dust collector having a filter cleaning function.

[0002]

2. Description of the Related Art For example, as shown in FIG. 1 of JP-A-63-209721, a dust collecting apparatus having a structure in which a plurality of filters are suspended inside a dust collecting chamber performs a dust collecting operation. Dust clogs the filter as it proceeds. Among such clogging, the initial clogging is caused by the backwashing device (dust removing device) provided inside the device injecting compressed air into each filter in a pulsed state, and the injection pressure is applied to the filter by the injection pressure. Adhered dust can be blown off to a dust bucket provided below to eliminate clogging.

However, if fumes and oils are mixed with the dust adhering to the filter, these fumes and oils adhere to the filter together with the dust, and are filtered using the above-described pulse jet type dust remover. Even if compressed air is blown into the inside, there is a problem that the sticking dust cannot be removed and the pressure loss of the filter increases.

[0004]

Therefore, conventionally, the above-mentioned filter to which dust has adhered has been removed from the dust collecting chamber and replaced with a substitute one, and the dirty filter removed from the dust collecting chamber has been replaced with a dust collecting apparatus. Had been cleaned with a separate cleaning device to remove dirt.However, as described above, the method of cleaning by replacing the filter requires a dedicated cleaning device separately from the dust collection device, Replacement filters are also required, resulting in a problem that costs are greatly increased.In addition, it is necessary to remove the dirty filters from the dust collection chamber and carry them to the cleaning device for cleaning work. There was a problem that became very complicated. Furthermore, the dusts washed off from the filter by washing have a problem that various problems are caused when the dusts are discarded as they are, and there is also a problem that it is necessary to treat the dust removal dust again, which is troublesome and costly. .

Therefore, a technical problem of the present invention is to remove dust containing fumes, oils, and the like adhering to a filter, without removing the filter from the dust collecting apparatus, without hanging the filter in the dust collecting chamber. An object of the present invention is to provide a filter cleaning method for a dust collector and a dust collector with a filter cleaning function, which are devised so that they can be easily and cleanly wiped off.

[0006]

Means for Solving the Problems (1) In order to solve the above-mentioned technical problems, in the present invention, as described in the above-mentioned claim 1, dust adhering to the filter is collected by injecting high-pressure air. A method for cleaning a filter for a dust collector, wherein the filter removes a wall plate constituting one side wall of a dust collection chamber and cleans the dust plate by removing the wall plate from a dust bucket provided at the bottom of the dust chamber. By inserting the nozzle of the cleaning air gun through the insertion hole or the nozzle insertion part of the slit structure, and blowing high-pressure air to the filter, dust adhering to the filter from the outside of the dust collection chamber is wiped off. ing.

(2) Next, in the present invention, as described in the second aspect, a filtering function of filtering the dust-containing air sucked into the dust collecting chamber from the suction port by a filter, and the dust attached to the filter to the lower side. A dust collecting device having a dust removing function of sweeping off to a dust bucket provided in the dust collecting chamber, wherein a wall plate forming one side wall of a dust collecting chamber to which the filter is mounted is detachably configured, and instead of this wall plate, At least a part of the cleaning wall plate made of a transparent plate or sheet can be replaced and attached, and the transparent plate or sheet portion of the cleaning wall plate is provided with a filter cleaning air gun. And a nozzle insertion portion having a slit structure or a slit structure which can be operated by inserting the nozzle.

(3) Next, in the present invention, the nozzle insertion portion having the slit structure provided on the transparent plate or sheet portion of the cleaning wall plate is moved in the direction in which the slit is always closed. It is configured using a pair of elastic members that repress.

(4) Next, in the present invention, the nozzle insertion portion having a slit structure provided in the transparent plate or sheet portion of the cleaning wall plate is formed of an elastic member having a substantially cylindrical shape. A pair of upper and lower or left and right cylindrical bodies formed by rolling into a round shape are configured by elastically pressing and contacting the ridge lines thereof.

(5) According to the present invention, the nozzle of the filter-cleaning air gun can be inserted into the dust collecting chamber from the nozzle insertion portion into a substantially straight shape and a substantially hook shape. The nozzles formed in a straight line shape and a hook shape are provided with air injection holes.

According to the means described in the above (1) and (2), one side wall of the dust collecting chamber is replaced with a cleaning wall plate, and the nozzle of the cleaning air gun is inserted from the nozzle insertion portion of the cleaning wall plate. By inserting and blowing high-pressure air to the filter, the filter can remove the fumes and oil mixed with the fumes and oils that have adhered to the filter while removing it, and purposely remove the filter from the dust collection chamber. This eliminates the need to remove and carry this to the cleaning device for cleaning, and eliminates the need to separately prepare a filter cleaning device or a separate filter (spare filter) for replacement. Can be easily cleaned, and
Since dust separated from the filter by blowing high-pressure air can be dropped and collected on a dust bucket provided on the bottom surface side, it is possible to save the trouble of reprocessing the dust mass.

Further, according to the means described in the above (2),
The cleaning work of the filter by the nozzle of the cleaning air gun is performed through a cleaning wall plate that is at least partially made transparent.
Since it is possible to proceed while visually checking from outside the dust collecting chamber, it is possible to more reliably clean the filter.

According to the means described in the above (3) and (4), the nozzle insertion portion for inserting the nozzle of the cleaning air gun is formed in a slit structure, so that the filter is moved while moving the nozzle along the slit. Because it can be cleaned, you can freely operate the position and orientation of the air gun,
The filter can be cleaned by blowing high-pressure air on the filter as desired, and the troublesome cleaning of the filter can be performed relatively easily and reliably, and the slit structure in which the nozzle is inserted is provided. Since the nozzle insertion portion is elastically pressed in a direction in which the slit is always closed by elasticity, no air leaks from the slit during insertion and operation of the nozzle, and therefore,
It is possible to safely and hygienically perform a cleaning operation without blowing out high-pressure air or separated dust from the slit to the outside of the dust collection chamber.

According to the means described in the above (5), by using the nozzles of the filter cleaning air gun formed in a straight line and a hook shape as appropriate, the filter can be used not only from the front but also from the side and back. The high pressure air is blown to the side so that the filter can be completely cleaned.

As described above, the above (1) to (1)
By solving the above technical problem by means of (5),
The problem of the conventional technique can be solved.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a dust collector having a filter cleaning function according to an embodiment of the present invention; FIG. FIG. 1 is a partially cutaway perspective view showing an example. In the figure, reference numeral 1 denotes an entire body of a dust collector, and the inside of the body 1 is a lower side by two partition plates 2 and 3. From above to a dust collection chamber 1X (filter chamber), a dust removal chamber 1Y, and a clean room 1Z.
A suction pipe 1A for dust-containing air is connected to the outer surface of the filter, and an exhaust port 1B for filtered clean air is provided on the ceiling of the clean room 1Z.
Is provided.

Reference numeral 4 denotes a filter provided in the dust collecting chamber 1X, 5 denotes a dust bucket provided at the inner bottom of the dust collecting chamber 1X so as to be freely drawn out, and 5A denotes a door for taking out the bucket 5.
T and 5T are fasteners, 10 is a wall plate constituting one side wall of the dust collecting chamber 1X, 10T is a fastener for the wall plate 10, and the wall plate 10 removes the fastener 10T. By doing so, the dust collecting chamber 1X can be freely removed from one side. However, during normal operation (during the dust collecting operation) as shown in the figure, the fasteners 10T. The dust collecting chamber 1X is firmly attached to one side of the dust collecting chamber 1X to maintain the dust collecting chamber 1X in a sealed state.

Reference numerals 2A ... denote venturis provided on the partition plate 2 for each filter, which also serve as filtered air circulation ports. The dust adhering to the filter 4 is used to remove dust adhering to the filter 4 from the lower dust bucket 5.
During the dust removal operation, high-pressure air is supplied from the broach tube 7 provided in the dust removal chamber 1Y to each of these venturis 2.
The structure is blown into each of the filters 4 through A. Reference numeral 6 denotes a suction fan provided in the cleaning chamber 1Z. Reference numeral 6M denotes a motor for rotating the fan 6, which is sucked into the dust collection chamber 1X through the suction pipe 1A by a suction action of the rotation of the suction fan 6. The dust-containing air is filtered and purified by the filter 4, and the clean air is discharged from the exhaust port 1B through the dust removal chamber 1Y and the clean chamber 1Z.

Although the present invention is embodied in the dust collecting apparatus having the above-described structure, it goes without saying that the dust collecting apparatus is not limited to the illustrated structure. 2 and 7 show an embodiment of the present invention. When dust adheres to the filters 4 by the dust collection operation shown in FIG. 1, the dust is initially clogged with ordinary dust. If
The above-described dust removal operation is performed, and high-pressure air for dust removal is blown into each of the filters 4 through the venturis 2A from the blow tube 7 to blow off dust adhering from the filters 4 to the lower dust bucket 5. The dust is collected, but the dust adhering to the filter 4 is dust that cannot be removed by this dust removal operation, that is, the dust is mixed with fumes and oil, and the dust adheres to the filter 4. In such a case, the cleaning method and the cleaning function of the present invention are used to clean the dust that has adhered to these.

In FIGS. 2 and 7, reference numerals 20 and 30 denote a dust collecting chamber 1 instead of the above-mentioned wall plate 10 at the time of the above cleaning.
X, a nozzle 23 of a filter cleaning air gun is externally inserted into the dust collecting chamber 1X on each of the cleaning wall plates 20 and 30, and the filter 4. Nozzle insertion portions 21H and 31H are formed so that dust that has adhered can be separated from the filter surface by high-pressure air injected from the nozzle 23. Moreover, in the figure, 20T ... and 30T ...
5 shows a fastener for mounting 0.

The structure of the cleaning wall plates 20 and 30 will be described in detail. In the cleaning wall plate 20 shown in FIG. 2, the nozzle insertion portion 21H is formed in a slit shape. The inner filter 4 can be cleaned while moving the inserted nozzle 23 along the slit, and further, the dust collecting chamber 1X
The peripheral portion of the nozzle insertion portion 21H is formed using a transparent plate such as an acrylic plate so that the state of the cleaning in the inside can be visually checked from the outside. To prevent leakage
The slit-shaped nozzle insertion portion 21H is always elastically closed.

That is, in FIG. 2, reference numerals 22 and 22 denote upper and lower transparent plates and 21 and 21 which constitute a part of the cleaning wall plate 20, respectively.
Is a pair of upper and lower cylindrical members formed by rolling an elastic plate material such as rubber material into a substantially cylindrical cross section.
1, 21 are upper and lower transparent plates 2 as shown in the sectional view of FIG.
2, 22 at the inner surface of the opposing tip, its root end 2
1A and 21A are attached using holding plates 22A and 22A and fixing means 24 and 24 such as set screws and fasteners.
In attaching the cylindrical bodies 21 and 21, the ridges of the cylinders 21 and 21 are elastically brought into contact with each other by elastic action, that is, the slit-shaped nozzle insertion portion 21H is always elastically closed. Installed to maintain,
As shown in FIGS. 4 and 5, when the nozzle 23 is inserted into the nozzle insertion portion 21H for cleaning, air leakage is reduced as much as possible.

Further, the nozzle 23 inserted into the slit-shaped nozzle insertion portion 21H as described above can freely move laterally along the slit, and can also freely move up and down as shown in FIG. In combination with the various shapes of the nozzle 23 described later, the entire filter 4 in the dust collecting chamber 1X can be completely and completely cleaned without distinction between the front and back and the upper and lower sides.

FIGS. 2, 5 and 6 show the case where the slit-shaped nozzle insertion portion 21H is provided laterally with respect to the cleaning wall plate 20, but the slit is oriented vertically. However, the direction may be arbitrary.

Next, in the cleaning wall plate 30 shown in FIG. 7, the nozzle insertion portion 31H is formed in an insertion hole shape.
In the drawing, reference numeral 31 denotes a cover body formed entirely of a pyramid shape using a transparent sheet material such as vinyl, for example. Reference numeral 31A denotes a mounting portion of the cover body 31. The interior of the dust collecting chamber 1X can be visually checked from the outside through the cover body 31 having the opening 31H. As the cover body 31, FIG.
As shown in FIG. 8, a hard type that can hold its pyramid shape by itself, a flexible type that is bendable as shown in each drawing of FIG. 8, or a flexible type that is entirely formed in a bag shape (shown in FIG. Various structures such as (omitted) can be considered.

FIG. 9 is a perspective view showing the structure of the nozzle 23 of the filter cleaning air gun. The nozzle 23 has a straight nozzle 23A as shown in FIG. There are various types of nozzles such as a hook-shaped nozzle 23B or a hook-shaped nozzle 23C having a greatly curved distal end.
23C is prepared in advance, and is appropriately replaced and used as shown in FIGS. 8A and 8B according to the position of the filter 4 and the cleaning location.

In FIG. 9, reference numeral 41 denotes an air gun capable of replacing various nozzles, and reference numeral 40 denotes a high-pressure air supply hose. Reference numerals 23A ', 23B' and 23C 'denote nozzles 23A, 23B and 23C. The air injection holes provided at the tip portion (near the tip portion) are shown, and FIG. 10 is an explanatory diagram of the usage of these nozzles 23A, 23B, and 23C. The nozzles 23A to 23A shown in FIGS.
23C is an example of the embodiment, and it goes without saying that the form of the nozzle 23 is not limited to the illustrated one. Further, although not shown, each of the nozzles 23A to 23C is provided with the slit-shaped nozzle insertion portion 21 shown in FIGS.
Of course, it can be inserted into H and used.

Since the present invention is configured as described above,
When dust containing fumes, oils, etc. adheres to the filter 4 and becomes clogged, the wall plate 10 for normal operation shown in FIG. 1 is removed and the cleaning plate shown in FIG. 2 or FIG. Instead of attaching the wall plate 20 or 30 to one side wall of the dust collecting chamber 1X, the slit-shaped nozzle insertion portion 21H or the insertion hole-shaped nozzle insertion portion 31H provided in each cleaning wall plate 20 or 30 is provided. By inserting the nozzle 23 (specifically, any one of the nozzles 23A to 23C) of the filter cleaning air gun 41 and directly blowing high-pressure air to the filter 4, the dust adhered to the filter 4 is peeled off. It can be dumped to the lower dust bucket 5.

In the cleaning operation by the injection of high-pressure air, the nozzles 23A to 23C of various shapes can be visually checked from the outside through the transparent plates 22, 22 or the transparent cover body 31. Combined with the point that the nozzles 23A to 23C can be freely operated up, down, left, and right, the high pressure air can be reliably blown onto all surfaces of the filter 4 provided in the dust collection chamber 1X. Can be cleaned.

[0030]

As described above, the method for cleaning a filter for a dust collecting apparatus and the dust collecting apparatus with a filter cleaning function according to the present invention are as described above. The filter inside the dust collecting apparatus can be cleaned from the outside. This eliminates the need to remove the filter from the inside of the dust collector and transport the removed filter to the cleaning device when removing dust that contains fumes or oil that has adhered. In addition to the advantages that the filter can be easily cleaned, there is no need to prepare a separate cleaning device or a spare filter for cleaning the filter, and it is also necessary to make the structure of the dust collector specially designed. There is no need to prepare a wall plate for cleaning and replace it,
It also has an economic advantage that complicated filter cleaning can be realized at a relatively low cost, and is very suitable to be applied to dust collectors of various structures.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view illustrating a state of a dust collector in which the present invention is implemented during normal operation.

FIG. 2 is a partially cutaway perspective view illustrating a state during cleaning of a dust collector embodying the present invention in which a nozzle insertion portion is formed in a slit shape.

FIG. 3 is an enlarged side sectional view showing a nozzle insertion portion configured in a slit structure.

FIG. 4 is a side sectional view showing a state where a nozzle is inserted into a nozzle insertion portion having a slit structure shown in FIG. 3;

FIG. 5 is a front view of the inserted state of the nozzle shown in FIG. 4 as viewed from the outside of the dust collecting device.

FIG. 6 is a side sectional view for explaining a state of operation of an inserted nozzle.

FIG. 7 is a partially broken perspective view illustrating a state during cleaning of a dust collecting device embodying the present invention in which a nozzle insertion portion is formed in an insertion hole shape.

FIGS. 8A and 8B are plan views illustrating a state in which a nozzle is inserted into a nozzle insertion portion formed in an insertion hole shape and cleaning is performed.

FIG. 9 is a perspective view illustrating a configuration of a nozzle and an air gun used in the present invention.

FIGS. 10 (a), (b), and (c) are illustrations for explaining the usage of each nozzle with respect to the filter.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Body of dust collection apparatus 1X Dust collection chamber 4 Filter 5 Dust bucket 10 Wall plate 20 Cleaning wall plate 21 Cylindrical body 21H Nozzle insertion part of slit structure 22 Transparent plate 23, 23A, 23B, 23C Nozzle 23A ', 23B ', 23C' Air injection port 30 Wall plate for cleaning 31H Nozzle insertion section with insertion hole structure 31 Sheet 41 Air gun

Claims (5)

[Claims] 1. A method for cleaning a filter for a dust collecting device, wherein dust adhering to a filter is blown off by a high pressure air to a dust bucket provided at the bottom of the dust collecting chamber for cleaning. Remove the wall plate that constitutes one side wall, insert the nozzle of the cleaning air gun through the insertion hole or the nozzle insertion part of the slit structure provided in the cleaning wall plate that is attached instead, and blow high-pressure air to the filter. A dust attached to the filter from outside of the dust collecting chamber. 2. A dust collecting apparatus having a filtering function of filtering dust-containing air sucked into a dust collecting chamber from a suction port by a filter, and a dust removing function of sweeping dust attached to the filter into a dust bucket provided below. A wall for cleaning, wherein a wall plate forming one side wall of the dust collecting chamber to which the filter is attached is detachably configured, and at least a part of the wall is made of a transparent plate or sheet instead of the wall plate. An insertion hole or a slit structure in which a transparent plate or sheet portion of the cleaning wall plate can be inserted and operated by inserting a nozzle of a filter cleaning air gun into the transparent plate or sheet portion of the cleaning wall plate. A dust collector with a filter cleaning function, characterized by having a nozzle insertion part. 3. A nozzle insertion portion having a slit structure provided on a transparent plate or sheet portion of a wall plate for cleaning using a pair of elastic members that resiliently press in a direction to close the slits. A dust collector with a filter cleaning function according to claim 2. 4. A pair of upper and lower or left and right cylindrical members formed by rolling a resilient member into a substantially cylindrical shape, and forming a slit-shaped nozzle insertion portion provided in a transparent plate or sheet portion of a cleaning wall plate into each other. The dust collector with a filter cleaning function according to claim 2 or 3, wherein the ridge is elastically pressed and contacted. 5. A nozzle for a filter-cleaning air gun is formed in a substantially straight shape and a substantially hook shape which can be inserted into a dust collecting chamber from a nozzle insertion portion. 3. The dust collector with a filter cleaning function according to claim 2, wherein an air injection hole is provided at a tip portion.