JP2013220416A - Filter cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filter cleaning device which is of a simple construction and can remove dirt on a cylindrical filter easily and securely, so that the filter can be reused.SOLUTION: A filter cleaning device 1 for cleaning the cylindrical filter 50 includes an air bubble jetting device 7 inside a cleaning container 3 in which a cleaning liquid 2 can be stored. While the cylindrical filter 50 is rotated by blowing air bubbles from below to the cylindrical filter 50 afloat on the cleaning liquid 2, the cylindrical filter 50 is cleaned by being brought in slide contact with a plate-like object 12 arranged almost in parallel in the axial direction of the cylindrical filter 50.

Description

  The present invention relates to a filter cleaning device that cleans a cylindrical filter while rotating it.

  For dust collectors that suck dust and devices for obtaining powder products of a certain particle size, a filter that restricts the passage of particles of a certain size or larger by allowing gas to pass from the outside to the inside, and collects these particles on the surface. It is known to use. Such a filter is clogged while being used and its efficiency is lowered, so that it is replaced with an unused product, or washed and regenerated and reused. Washing with water is generally performed as a method for regenerating the filter.

  However, hand-washing a clogged filter has a problem in that it takes a lot of time to wash the entire filter and the working posture is deteriorated to avoid contaminated cleaning liquid.

  Therefore, for example, as in Patent Document 1, a filter receiver using a thrust ball bearing is attached to the bottom of a core rod that serves as a filter holder, and the cylindrical filter is cleaned and rotated by a jet of cleaning liquid. It has been known.

  Further, as in Patent Document 2, the cylindrical filter is supported rotatably around a rotation shaft provided in the processing container, and cleaned while rotating the cylindrical filter with bubbles supplied from an air nozzle for supplying bubble flow. It is known to do.

JP 2002-336621 A JP 2008-279429 A (particularly Example 6)

  However, the cleaning device of Patent Document 1 has a problem that the apparatus becomes large, maintenance of a ball bearing and the like with liquid is difficult, and dust and cleaning liquid are scattered.

  Furthermore, in the cleaning device of Patent Document 2, a hand must be put into the cleaning liquid that has become bent forward and contaminated, and a rotating shaft is inserted into the center of the filter so as to be attached to and detached from the filter support plate. In addition, there is a problem that maintenance is difficult because the rotating shaft is in a position where the cleaning liquid is immersed.

  The present invention has been made in view of such a point, and an object of the present invention is to easily and surely remove the dirt from the cylindrical filter so that it can be reused with a simple configuration.

  In order to achieve the above object, in the present invention, the cylindrical filter floating in the cleaning liquid is rotated by bubbles to be cleaned.

Specifically, in the first invention, on the premise of a filter cleaning device for cleaning a cylindrical filter,
The filter cleaning device
A cleaning container capable of storing cleaning liquid;
A bubble jetting device that is arranged in the cleaning container and blows bubbles from below to the cylindrical filter floating on the cleaning liquid of the cleaning container, and rotates the cylindrical filter by the bubbles;
And a plate-like body which is disposed substantially parallel to the axial direction of the cylindrical filter floating in the cleaning container and is in sliding contact with the cylindrical filter while rotating.

  According to the above configuration, the cylindrical filter is slidably brought into contact with the plate-like body arranged substantially parallel to the axial direction thereof, so that the cylindrical filter rotates stably around the axial direction, thereby improving the cleaning efficiency. . Further, since the cylindrical filter is only floated on the cleaning liquid without inserting the rotation shaft into the center of the cylindrical filter, the contamination of the cylindrical filter can be easily and reliably removed with a simple configuration. Furthermore, the trouble of inserting the rotating shaft into the center of the cylindrical filter can be saved.

In the second invention, in the first invention,
The plate-like body is configured to be able to change its position in the container in accordance with the outer diameter of the cylindrical filter.

  According to said structure, a cylindrical filter can be reliably rotated stably by arrange | positioning a plate-shaped object in the optimal position according to the magnitude | size of a cylindrical filter.

In the third invention, in the first or second invention,
The cleaning container is provided with a discharge port capable of adjusting the height of the cleaning liquid,
By adjusting the height of the discharge port, the distance from the bubble injection nozzle provided in the bubble injection device to the cylindrical filter is adjustable.

  That is, if the distance from the bubble injection nozzle to the cylindrical filter is too large, the momentum of the bubble is reduced and the cylindrical filter does not rotate well and cannot be cleaned sufficiently. By adjusting the height, the distance from the bubble injection nozzle to the cylindrical filter can be adjusted optimally by adjusting the liquid level height, so that the cylindrical filter rotates appropriately and the cleaning efficiency is improved.

  As described above, according to the present invention, the bubble ejection device is provided in the cleaning container, and the bubbles are blown from below to rotate on the cylindrical filter floating on the cleaning liquid. It is possible to easily and reliably remove the dirt of the cylindrical filter and make it reusable.

It is the II sectional view taken on the line of FIG. It is a top view which shows the filter washing | cleaning apparatus which concerns on embodiment of this invention. It is a perspective view which shows an air introduction pipe. It is the IV-IV sectional view taken on the line of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 and 2 show a filter cleaning apparatus 1 according to an embodiment of the present invention, and this filter cleaning apparatus 1 includes a rectangular parallelepiped cleaning container 3 capable of storing a cleaning liquid 2. For example, the cleaning liquid 2 may be tap water or a liquid such as water to which a cleaning agent is added. The cylindrical filter 50 to be cleaned has a cylindrical shape in which a large number of filter cloths 51 are folded. The cylindrical filter 50 collects particles on the surface of the filter cloth 51 by restricting the passage of particles of a certain size or larger by allowing gas to pass from the outside to the inside.

  The cleaning container 3 is made of, for example, a resin molded product, but the material is not particularly limited. An introduction pipe 4 for introducing the cleaning liquid 2 is provided at the bottom of the cleaning container 3. The introduction pipe 4 is connected to a hose connected to a tap or the like. Note that an opening / closing valve may be provided in the introduction pipe 4 so that the cleaning liquid 2 in the used cleaning container 3 is discharged from the introduction pipe 4. A discharge port 5 for discharging the cleaning liquid 2 is provided in the upper part of the cleaning container 3. The discharge port 5 is preferably configured to be slidable up and down, for example. For example, as shown in FIG. 2, the discharge port 5 is provided with a vertically long rectangular flange portion 5b in the pipe portion 5a, and the flange portion 5b moves up and down in a watertight manner to the opening 3a formed in the cleaning container 3. Insert it as much as possible. In this way, it is preferable that the water level in the cleaning container 3 can be adjusted by adjusting the height of the discharge port 5.

  A bubble ejection device 7 is provided at the bottom of the cleaning container 3. For example, as shown in FIG. 3, the bubble ejection device 7 includes a plurality of bubble ejection nozzles 9 opened in an air introduction pipe 8 made of a vinyl chloride pipe or the like. The distal end of the air introduction pipe 8 is closed with a cap 10, and the proximal end side communicates with the compressor 11 so that, for example, compressed air of 0.4 MPa is introduced. The bubble injection nozzle 9 plays a role in blowing bubbles from below to the cylindrical filter 50 floating on the cleaning liquid 2 of the cleaning container 3 and rotating the cylindrical filter 50 by the bubbles. As shown in FIG. 1, the cylindrical filter 50 floats in a state where 50% or more of its diameter D sinks (d ≧ 0.5D). Preferably, 70% or more of the diameter D sinks (d ≧ 0.7D).

  As shown in FIG. 3, the bubble injection nozzle 9 is formed, for example, in two rows of openings in an air introduction pipe 8 having a diameter of 20 mm in a staggered pattern with an interval x of 50 mm (x = 50 mm). The size of the opening is, for example, 1 mm in diameter. As shown in FIG. 4, the bubble injection nozzle 9 has one row arranged on the upper side and the other row arranged at a position where the angle α is 45 °, for example. The angle α is not particularly limited, but an optimum position where the cylindrical filter 50 can be easily rotated is desirable. Further, the bubble injection nozzles 9 are not limited to being arranged in a zigzag pattern in two rows, and may be at an optimal position where the cylindrical filter 50 can be easily rotated. As shown in FIG. 2, the bubble injection nozzle 9 is preferably disposed below the cylindrical filter 50 in a plan view, but is disposed so as to be separated from the central axis so as to be slightly seen from the cylindrical filter 50. May be.

  If the distance between the bubble injection nozzle 9 and the filter cloth 51 is too long, the bubbles diverge and the cylindrical filter 50 is difficult to rotate. Therefore, as shown in FIG. The height h1 from the bottom surface may be equal to or higher than the height h2 of the lowermost part of the cylindrical filter 50 so as not to hit the filter cloth 51 (h1 ≧ h2). The lowermost height h2 of the cylindrical filter 50 may be adjusted by adjusting the height of the discharge port 5.

  A plate-like body 12 made of a smooth wooden plate is arranged in the cleaning container 3 so as to be substantially parallel to the axial direction of the cylindrical filter 50 (longitudinal direction of the air introduction pipe 8). When the cylindrical filter 50 is in sliding contact with the plate-like body 12 while rotating, the cylindrical filter 50 rotates stably. The plate-like body 12 is preferably configured so that its position can be changed in the cleaning container 3 in accordance with the diameter D of the cylindrical filter 50. For example, as shown by a solid line arrow in FIG. 1, the end 12 a of the plate-like body 12 may be fixed to the cleaning container 3 by being translated at an arbitrary position. If the distance y between the straight line in which the bubble jet nozzles 9 are arranged and the side surface 3b of the cleaning container 3 substantially parallel to the straight line is smaller than the radius of the cylindrical filter 50, the cylindrical filter 50 unexpectedly causes the plate-like body 12 to be in contact. It is desirable not to escape to the opposite side (y <D / 2). In addition, it is good to provide a clearance gap between the lower end of the plate-like body 12, the bottom surface of the cleaning container 3, and the load so that the cleaning liquid 2 can flow.

  The plate-like body 12 may be perpendicular to the water surface (vertical direction), or as shown by an imaginary line arrow in FIG. 1, the inclination angle is such that the upper end is inclined toward the cylindrical filter 50 side from the vertical direction. May be changeable. The plate-like body 12 does not necessarily need to be a smooth wooden, but it is preferable that the plate-like body 12 has no step or unevenness and has a small frictional resistance.

  Next, the operation of the filter cleaning device 1 according to this embodiment will be described.

  First, tap water is filled into the cleaning container 3 from the introduction pipe 4. It is good also as a washing | cleaning liquid 2 by adding a washing | cleaning agent to tap water.

  Next, the height of the discharge port 5 is adjusted to some extent. Also, a discharge hose may be connected to the tip of the discharge port 5.

  Next, in a state where the cleaning liquid 2 is accumulated, the dirty cylindrical filter 50 is floated on the cleaning liquid 2 so as to be substantially parallel to the plate-like body 12.

  Next, the position of the plate-like body 12 is adjusted according to the diameter D of the cylindrical filter 50.

  Next, compressed air is sent out from the compressor 11 and bubbles are generated vigorously from the bubble injection nozzle 9. Then, the cylindrical filter 50 rotates vigorously, and dust adhering to the filter cloth 51 of the cylindrical filter 50 is scraped off and floats on the water surface. By bringing the cylindrical filter 50 into sliding contact with the plate-like body 12 disposed substantially parallel to the axial direction, the cylindrical filter 50 rotates stably around the axial direction, so that the cleaning efficiency is improved.

  By leaving a predetermined amount of tap water, dust floating on the water surface is automatically discharged from the discharge port 5. It is desirable for environmental protection to drain the dust after rubbing it with a filter.

  After the cylindrical filter 50 is rotated for a predetermined time to remove dust, the compressed air from the compressor 11 is stopped and the cylindrical filter 50 is taken out.

  If there is a dirty cylindrical filter 50 of the same size, the same operation is repeated, and if there are different sizes of the cylindrical filter 50, the position of the plate 12 and the height of the discharge port 5 are changed. Repeat the above procedure.

  By arranging the plate-like body 12 at an optimal position according to the size of the cylindrical filter 50, the cylindrical filter 50 can be reliably rotated stably.

  In addition, by adjusting the height of the discharge port 5, the distance from the bubble injection nozzle 9 to the cylindrical filter 50 can be adjusted optimally by adjusting the liquid level height, so that the cylindrical filter 50 rotates appropriately. Cleaning efficiency.

  As described above, since the rotation shaft is not inserted into the center of the cylindrical filter 50 and the cylindrical filter 50 is only floating on the cleaning liquid 2, the labor of inserting the rotation shaft into the center of the cylindrical filter 50 can be saved. By washing the cylindrical filter 50 while rotating it with the force of bubbles, for example, when it is washed by hand, it takes about 5 minutes to take 20-30 minutes.

  Instead of suddenly putting the dirty cylindrical filter 50 into the cleaning liquid 2, a little water may be poured in advance to slightly remove the dirt or to easily sink into the cleaning liquid 2.

  Therefore, according to the filter cleaning device 1 according to the present embodiment, the bubble ejection device 7 is provided in the cleaning container 3 and the bubbles are vigorously blown and rotated against the cylindrical filter 50 floating on the cleaning liquid 2. Thus, the cylindrical filter 50 can be easily and reliably removed and reused with a simple configuration.

(Other embodiments)
The present invention may be configured as follows with respect to the above embodiment.

  That is, although an example of the dimensions is shown in the above embodiment, the present invention is not limited to this, and each dimension may be set according to the size of the cylindrical filter 50.

  In the above embodiment, the plate-like body 12 is provided, but the size of the cleaning container 3 is relatively small with respect to the cylindrical filter 50, and the cylindrical filter 50 can be removed from the bubble injection nozzle 9 without the plate-like body 12. When it does not leave, the side surface of the cleaning container 3 may play the role of the plate-like body 12.

  In the above-described embodiment, only one air introduction pipe 8 is provided, but a plurality of cylindrical filters 50 may be cleaned simultaneously by providing a plurality of air introduction pipes 8.

  In addition, the above embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or a use.

  As described above, the present invention is useful for a filter cleaning apparatus that cleans while rotating a cylindrical filter.

DESCRIPTION OF SYMBOLS 1 Filter cleaning apparatus 2 Cleaning liquid 3 Cleaning container 5 Outlet 7 Bubble ejection apparatus 9 Bubble injection nozzle 12 Plate body 50 Cylindrical filter

Claims (3)

In a filter cleaning apparatus for cleaning a cylindrical filter,
A cleaning container capable of storing cleaning liquid;
A bubble ejection device that is disposed in the cleaning container and blows air bubbles from below to the cylindrical filter floating on the cleaning liquid of the cleaning container, and is cleaned while rotating the cylindrical filter by the bubbles;
A filter cleaning apparatus, comprising: a plate-like body that is arranged substantially parallel to an axial direction of the cylindrical filter floating in the cleaning container and is in sliding contact with the cylindrical filter while rotating. The filter cleaning apparatus according to claim 1,
The said plate-shaped object is comprised so that a position can be changed within the said container according to the outer diameter of the said cylindrical filter, The filter washing | cleaning apparatus characterized by the above-mentioned. In the filter cleaning apparatus according to claim 1 or 2,
The cleaning container is provided with a discharge port capable of adjusting the height of the cleaning liquid,
A filter cleaning device configured to be capable of adjusting a distance from a bubble injection nozzle provided in the bubble ejection device to the cylindrical filter by adjusting a height of the discharge port.

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