JP2019034271A - Filter cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filter cleaning device having high working efficiency and obtaining a sufficient cleaning effect.
SOLUTION: A mounting portion for mounting a cylindrical filter and an injection portion that injects a cleaning material onto the outer peripheral surface of the filter, the injection portion being viewed from the longitudinal direction of the filter. In plan view, it has a plurality of injection holes arranged in an annular shape so as to surround the outer peripheral surface of the filter, and each of the plurality of injection holes is linear in the plan view and the center of the filter A filter cleaning apparatus, wherein the cleaning material is sprayed toward a portion.
[Selection] Figure 1

Description

The present invention relates to a filter cleaning apparatus.

In the production of liquid products and the like, insoluble solids generated in the raw material processing stage or the like reduce the production efficiency. Moreover, the foreign material mixed in during a manufacturing process causes the quality of a product to fall.

In order to solve the above problem, a filter (also called an element) may be used. As this type of filter, a cylindrical filter is known. For example, a cylindrical notch wire filter, a sintered mesh filter formed into a cylindrical shape by sintering a multi-layered wire mesh to improve shape retention, and Examples thereof include a wedge wire filter element.

This filter removes insoluble solids and foreign matters (hereinafter collectively referred to as “foreign matters”) that are generated or mixed during the manufacturing process. There is a risk that the removal capability may be reduced and the production efficiency of the product may be reduced.

Therefore, in order to continuously maintain a certain removal capability without affecting the manufacturing process, it is necessary to sufficiently wash after using the filter. Conventionally, as a method of cleaning the filter, in addition to a method of cleaning the filter by spraying water or the like on the outer peripheral surface of the filter while the filter is supported by a hand, the filter is cleaned using a cleaning device described in Patent Document 1 The method of doing was known.

JP-A-6-262015

However, in the method of manually cleaning the filter, the working efficiency is low, and the cleaning effect varies depending on the skill level of the operator. Furthermore, depending on the shape of the filter and the size of the mesh structure of the filter medium, it has been difficult to sufficiently wash it over time.

In addition, although the method using the cleaning apparatus can improve the working efficiency as compared with the manual method, it cannot be said that the cleaning effect is sufficient.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a filter cleaning apparatus with high work efficiency and a sufficient cleaning effect.

The present invention includes a mounting portion for mounting a cylindrical filter, and an injection portion that injects a cleaning material onto the outer peripheral surface of the filter, and the injection portion is viewed from the longitudinal direction of the filter. In plan view, it has a plurality of injection holes arranged in an annular shape so as to surround the outer peripheral surface of the filter, and each of the plurality of injection holes is linear in the plan view and the center of the filter A filter cleaning apparatus, wherein the cleaning material is sprayed toward a portion.

According to the present invention, a cleaning device is used in which each injection hole is configured to spray a cleaning material linearly toward the center of the filter in a plan view as viewed from the longitudinal direction of the filter. As a result, the filter can be efficiently cleaned and a sufficient cleaning effect can be obtained.

FIG. 1 is a perspective view schematically showing an example of a filter cleaning apparatus according to the first embodiment of the present invention. FIG. 2 is a perspective view schematically showing a characteristic part of the filter cleaning apparatus shown in FIG. FIG. 3 is an enlarged perspective view of a part of the injection unit. FIG. 4 is a plan view schematically showing a state in which the cleaning material is sprayed onto the outer peripheral surface of the filter. FIG. 5A is a perspective view schematically showing an example of a sintered mesh filter, and FIG. 5B is an exploded perspective view of the sintered mesh filter shown in FIG.

Hereinafter, the filter cleaning apparatus of the present invention will be specifically described.
However, the present invention is not limited to the following embodiments, and can be applied with appropriate modifications without departing from the scope of the present invention. In addition, what combined two or more desirable structures of each embodiment described below is also this invention.

Each embodiment shown below is an illustration and partial substitution or combination of composition shown in a different embodiment is possible. In the second and subsequent embodiments, description of matters common to the first embodiment will be omitted, and only different points will be described. When the embodiments are not particularly distinguished, they are simply referred to as “the filter cleaning device of the present invention”.

[First Embodiment]
FIG. 1 is a perspective view schematically showing an example of a filter cleaning apparatus according to the first embodiment of the present invention. FIG. 1 shows a state where the filter is placed. FIG. 2 is a perspective view schematically showing a characteristic part of the filter cleaning apparatus shown in FIG.

The filter cleaning apparatus 1 shown in FIGS. 1 and 2 includes a mounting unit 10 for mounting a cylindrical filter F, and an injection unit 20 that injects a cleaning material C (see FIG. 4) on the outer peripheral surface of the filter F. (See FIG. 2).

The filter cleaning device 1 includes a moving mechanism 30 that can move the injection unit 20 in the longitudinal direction of the filter F (vertical direction in FIGS. 1 and 2). The outer peripheral surface of the filter F can be evenly cleaned by the ejection unit 20 that ejects the cleaning material moving in the longitudinal direction of the filter F.

As shown in FIG. 1, the filter cleaning device 1 further includes a cleaning chamber 40 that houses the placement unit 10 and the injection unit 20. A door 41 is provided in front of the cleaning chamber 40. Accordingly, the cleaning material is sprayed on the outer peripheral surface of the filter F stored in the cleaning chamber 40.

Further, the filter cleaning device 1 includes an oil separation tank 50 outside the cleaning chamber 40. When the cleaning material after washing the filter F enters the oil separation tank 50, the oil is separated due to the difference in specific gravity, so that wastewater with low environmental load can be discharged.

In addition, the filter cleaning device 1 includes a high-pressure pump, a control box, and the like (not shown).

As shown in FIG. 2, the mounting unit 10 has a mounting table 11 at a lower part thereof. The filter F is placed and held on the placing table 11. The filter F is placed vertically, that is, so that the longitudinal direction of the filter F is parallel to the vertical direction.

Furthermore, the mounting portion 10 has a pressing plate 12 at the top thereof. The pressing plate 12 is operated by an operating rod 13 provided on the upper portion thereof, and presses the end in the longitudinal direction of the filter F to fix the filter F. Therefore, fluttering (swaying) in the longitudinal direction of the filter F can be suppressed. However, the filter F pressed by the pressing plate 12 may rotate somewhat. In addition, as long as the edge part of a filter can be pressed, the means to fix a filter is not limited to a press plate.

FIG. 3 is an enlarged perspective view of a part of the injection unit.
The injection unit 20 has a plurality of injection holes 21. In the filter cleaning device 1, the injection unit 20 has one annular pipe 22, and the inner peripheral surface of the annular pipe 22 facing the outer peripheral surface of the filter is configured by combining a plurality of flat surfaces 23. Three injection holes 21 are provided in the plane 23. The injection holes 21 are desirably provided perpendicular to the respective planes 23.

FIG. 4 is a plan view schematically showing a state in which the cleaning material is sprayed onto the outer peripheral surface of the filter.
As shown in FIG. 4, the plurality of injection holes 21 are arranged in an annular shape so as to surround the outer peripheral surface of the filter F in a plan view viewed from the longitudinal direction of the filter F (the direction perpendicular to the paper surface in FIG. 4). The cleaning material C is sprayed linearly and toward the center of the filter F.

In the filter cleaning device of the present invention, each injection hole is configured to spray the cleaning material linearly and toward the center of the filter in a plan view as viewed from the longitudinal direction of the filter. . Therefore, the cleaning material can reach the back of the filter medium constituting the filter. As a result, the filter can be efficiently cleaned and a sufficient cleaning effect can be obtained.

In the filter cleaning apparatus of the present invention, it is desirable that the injection portion has an annular pipe, and an injection hole is provided on the inner peripheral surface of the annular pipe. In particular, it is desirable that the inner peripheral surface of the annular pipe facing the outer peripheral surface of the filter is configured by combining a plurality of planes, and each of the plurality of planes is provided with at least one injection hole. The shape of the annular pipe is not particularly limited, and may be an annular shape, an elliptical shape, or a square shape such as a square shape.

In the filter cleaning apparatus of the present invention, as long as the outer peripheral surface of the filter can be cleaned uniformly, the shape, number, interval, etc. of the injection holes are not particularly limited, and may be the same or different from each other. Also good.

In the filter cleaning device of the present invention, when the inner peripheral surface of the annular pipe is configured by combining a plurality of planes, the number and size of the planes, etc., as long as the outer peripheral surface of the filter can be cleaned uniformly Is not particularly limited. In addition, the number of injection holes provided in each plane is not particularly limited, and may be the same or different for each plane. When a plurality of injection holes are provided on each plane, the interval between the injection holes is not particularly limited.

In the filter cleaning apparatus of the present invention, when the inner peripheral surface of the annular pipe is formed by combining a plurality of planes, it is desirable that the injection holes are provided perpendicular to the respective planes. When the inner peripheral surface of the annular pipe is configured by a flat surface, it is easy to provide the injection holes perpendicular to the inner peripheral surface as compared with the case where the inner peripheral surface is configured by a curved surface.

In the filter cleaning device of the present invention, the shape of the injection hole is not particularly limited as long as the cleaning material can be sprayed linearly in a plan view viewed from the longitudinal direction of the filter.

In the filter cleaning apparatus of the present invention, the shape of the cleaning material sprayed from each spray hole is not particularly limited as long as it is linear in a plan view viewed from the longitudinal direction of the filter. The “linear” does not have to be a mathematically exact straight line and may have an injection angle of about 5 degrees. Moreover, the shape of the cleaning material injected from each injection hole may be different for each injection hole.

In the plan view, the width of the cleaning material ejected from the ejection holes is desirably 0.2 to 5.0 mm, and more desirably 0.5 to 2.5 mm.

In the filter cleaning apparatus of the present invention, the cleaning material is sprayed from the respective spray holes toward the center of the filter.
The “filter central portion” refers to a portion including the center of gravity of the filter in a plan view as viewed from the longitudinal direction of the filter. Specifically, in the plan view, when the length from the center of gravity to the outer periphery of the filter is R, it indicates a portion that falls within a range of about 5% of the length R. Therefore, the cleaning material injected from the injection hole does not necessarily pass through the center of gravity of the filter in the plan view.

In the filter cleaning apparatus of the present invention, the cleaning material is preferably water or a cleaning liquid. As the cleaning liquid, for example, a water-soluble solvent such as an alcohol aqueous solution, water or a solution obtained by adding a detergent to a water-soluble solvent, an organic solvent, or the like can be used.

The filter cleaned by the filter cleaning apparatus of the present invention filters fluid such as liquid and is formed in a cylindrical shape, for example, a cylindrical shape. In the filter cleaning apparatus of the present invention, any type of filter can be cleaned as long as it is a cylindrical filter. Examples of the cylindrical filter include a sintered mesh filter in which a plurality of laminated metal meshes are sintered to improve shape retention and formed into a cylindrical shape, a cylindrical notch wire filter, a wedge wire filter, and the like. In particular, the filter cleaned by the filter cleaning device of the present invention is preferably a sintered mesh filter in which a plurality of metal meshes laminated on the outer peripheral surface are sintered and wound.

FIG. 5A is a perspective view schematically showing an example of a sintered mesh filter, and FIG. 5B is an exploded perspective view of the sintered mesh filter shown in FIG.
A sintered mesh filter 100 shown in FIG. 5A includes an inner cylinder 101 and a three-layer wire net 102 wound around the inner cylinder 101 as shown in FIG. 5B. The three-layer wire net 102 is sintered and wound around the inner cylinder 101. The sintered mesh filter 100 further includes an upper plate 103 and a lower plate 104 at both ends.

A filter cleaning method using the filter cleaning apparatus having the above configuration will be described below.

The filter F is mounted on the mounting table 11 of the mounting unit 10, and the filter F is fixed by pressing the end of the filter F with the pressing plate 12. After the door 41 is closed and the filter F is stored in the cleaning chamber 40, the cleaning material C is sprayed from the spraying unit 20 and cleaning is started. By moving the injection unit 20 in the longitudinal direction of the filter F by the moving mechanism 30, the outer peripheral surface of the filter F is sequentially cleaned. The movement of the injection unit 20 may be repeated as appropriate.

[Second Embodiment]
In the first embodiment of the present invention, the injection unit has one annular pipe, whereas in the second embodiment of the present invention, the injection unit has a plurality of annular pipes. It is desirable that the inner peripheral surface of each annular pipe is configured by combining a plurality of planes, and each of the plurality of planes is provided with at least one injection hole.

In the second embodiment of the present invention, the plurality of annular pipes are arranged at predetermined intervals in the longitudinal direction of the filter. The configurations of the annular pipes may be the same or different.

The filter cleaning device according to the second embodiment of the present invention preferably includes a moving mechanism that can move the injection unit in the longitudinal direction of the filter, as in the first embodiment of the present invention, but does not include the moving mechanism. May be.

In addition, the filter cleaning apparatus according to the second embodiment of the present invention has the same configuration as the filter cleaning apparatus according to the first embodiment of the present invention, except that the number of annular pipes is different.

[Third Embodiment]
In the first embodiment of the present invention, the filter cleaning device includes a moving mechanism capable of moving the injection unit in the longitudinal direction of the filter, whereas in the third embodiment of the present invention, the filter cleaning device includes the filter described above. A moving mechanism movable in the longitudinal direction is provided.

In the third embodiment of the present invention, the injection unit includes an annular pipe, and the inner peripheral surface of the annular pipe facing the outer peripheral surface of the filter is configured by combining a plurality of planes, It is desirable that at least one injection hole is provided. There may be one annular pipe or a plurality of annular pipes.

In addition, the filter cleaning apparatus according to the third embodiment of the present invention has the same configuration as the filter cleaning apparatus according to the first embodiment of the present invention, except that the filter moves.

[Other Embodiments]
The filter cleaning apparatus of the present invention is not limited to the above embodiment, and various applications and modifications can be made within the scope of the present invention with respect to the configuration of the filter cleaning apparatus and the like.

For example, the filter cleaning device of the present invention may include both a moving mechanism capable of moving the ejection unit in the longitudinal direction of the filter and a moving mechanism capable of moving the filter in the longitudinal direction.

In the filter cleaning apparatus of the present invention, the direction in which the filter is placed is not particularly limited. For example, the filter may be placed vertically, that is, so that the longitudinal direction of the filter is parallel to the vertical direction, or horizontally, that is, placed so that the longitudinal direction of the filter is parallel to the horizontal direction. May be.

The filter cleaning device of the present invention may not include a cleaning chamber that houses the placement unit and the injection unit. Moreover, the filter cleaning apparatus of this invention does not need to be provided with the oil separation tank.

In the filter cleaning apparatus of the present invention, the configuration of the mounting portion is not particularly limited as long as a cylindrical filter can be mounted. Further, the mounting portion may not have means for fixing the filter by pressing the end portion in the longitudinal direction of the filter.

In the previous embodiments, when the injection unit has an annular pipe, the inner peripheral surface of the annular pipe facing the outer peripheral surface of the filter is configured by combining a plurality of planes, but facing the outer peripheral surface of the filter. The inner peripheral surface of the annular pipe does not have to be configured by combining a plurality of planes. For example, a plurality of injection holes may be provided at predetermined intervals on the inner peripheral surface of an annular pipe constituted by a curved surface. In this case, it is desirable that the injection hole is provided perpendicular to the inner peripheral surface of the annular pipe.

In the above embodiments, the apparatus for cleaning one filter has been described. However, the filter cleaning apparatus of the present invention may be an apparatus for cleaning two or more filters. In this case, the apparatus which wash | cleans the same kind of filter may be sufficient, and the apparatus which wash | cleans a different kind of filter may be sufficient. The configuration for cleaning different types of filters may be a configuration not included in the scope of the present invention.

When the filter cleaning device of the present invention is a device for cleaning two or more filters, it may have a cleaning chamber for storing individual filters, or a cleaning chamber for storing a plurality of filters. Alternatively, a cleaning chamber for storing all the filters may be provided.

DESCRIPTION OF SYMBOLS 1 Filter washing | cleaning apparatus 10 Mounting part 11 Mounting base 12 Pressing plate 13 Operation rod 20 Injection | pouring part 21 Injection hole 22 Annular pipe 23 Plane 30 Moving mechanism 40 Cleaning chamber 41 Door 50 Oil separation tank 100 Sintered mesh filter 101 Inner cylinder 102 Wire mesh 103 Upper plate 104 Lower plate C Cleaning material F Filter

Claims (8)

A placement section for placing a tubular filter;
An injection unit for injecting a cleaning material on the outer peripheral surface of the filter,
The injection unit has a plurality of injection holes arranged in an annular shape so as to surround the outer peripheral surface of the filter in a plan view seen from the longitudinal direction of the filter,
Each of the plurality of spray holes sprays the cleaning material linearly and toward the center of the filter in the plan view. The injection unit has an annular pipe,
The inner peripheral surface of the annular pipe facing the outer peripheral surface of the filter is configured by combining a plurality of planes,
The filter cleaning apparatus according to claim 1, wherein each of the plurality of planes is provided with at least one injection hole. The filter cleaning device according to claim 2, wherein the injection hole is provided perpendicular to the plane. The filter cleaning apparatus according to claim 1, wherein the cleaning material is water or a cleaning liquid. A cleaning chamber for storing the placement portion and the spray portion;
The filter cleaning apparatus according to claim 1, wherein the cleaning material is sprayed on an outer peripheral surface of the filter housed in the cleaning chamber. The filter cleaning apparatus according to claim 1, further comprising a moving mechanism capable of moving the ejection unit in the longitudinal direction. The filter cleaning device according to any one of claims 1 to 6, wherein the placement unit includes means for pressing the end of the filter in the longitudinal direction to fix the filter. The filter cleaning apparatus according to any one of claims 1 to 7, wherein the filter is a sintered mesh filter in which a plurality of metal meshes laminated on an outer peripheral surface are sintered and wound.

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