JPH059049Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a replaceable filtration device suitable for filtration of various types and small quantities.

[Conventional technology]

Conventional filtration devices include a cylindrical filter element and a scraper mechanism for scraping off filter slag that accumulates on the outer circumferential surface of the element in a cylindrical filtration tank installed on the top of a frame equipped with a motor. The motor shaft of the motor is extended and connected to the scraper mechanism in an integrated structure.

If it is necessary to filter a different type of liquid to be filtered, remove the lid cover bolted to the top of the filtration tank and replace the filter element each time, then put the lid cover on and restore it to use. ing.

[The problem that the idea aims to solve]

However, in such conventional filtration devices, when changing the liquid to be filtered, for example from M liquid to N liquid, even if the filter element is replaced with a new one for N liquid, the bottom of the filtration tank and internal components A portion of the M solution remains in each corner, and as a result, the M solution mixes into the filtered N solution.

Therefore, it is necessary to thoroughly clean the inside of the filtration tank before use, but this requires a lot of effort and time, and not only does it waste solution and cleaning fluid, but it is also impossible to obtain a completely clean state. It's hard to predict.

The present invention was developed in view of the above circumstances, and when changing the liquid to be filtered, it does not mix other solutions, and when cleaning is performed as required, it is possible to clean the internal parts as well. It is an object of the present invention to provide a replaceable filtration device that can completely clean the inside of a filtration tank.

[Means for Solving the Problems] The replaceable filtration device according to the present invention has a connecting base coupled to a filtration tank in which a cylindrical filter element and a scraper mechanism that rotates along the outer surface of the filter element are installed. The connecting table is removably attached to the top surface of a drive device provided with a motor for driving the scraper mechanism. At this time, the motor shaft protruding from the top surface and the scraper rotation shaft supported by the bottom plate of the filtration tank are removably connected.

In addition, the filtration tank has a cylindrical side wall sandwiched between a top plate that is removably equipped with a filter element on its inner surface, and a bottom plate that pivotally supports a scraper rotation shaft that is removably connected to the scraper mechanism. The structure is such that all parts can be disassembled individually.

[Effect]

In the replaceable filtration device of this invention, the liquid to be filtered is introduced into the filtration tank from the liquid supply port, and is filtered while scraping off the filter slag that accumulates on the surface of the filter element using a scraper mechanism that rotates under the driving force of a motor. Drain from the drain port. Remove the scraped scum from the drain port as necessary.

When installed upside down with the driving device facing upward, liquid is supplied from the drain port and the drain is removed from the liquid supply port. In addition, when changing the liquid to be filtered, remove the support base of the replaceable filtration device currently in use from the top surface of the drive device.
At the same time, after the scraper rotating shaft is removed from the motor shaft, another replaceable filtration device equipped with a filter element to be applied to the liquid to be filtered next is coupled to the drive device to perform filtration.

If you need to clean the inside of the filtration tank, remove the clamp and separate the filtration tank leaving the bottom plate.
Complete cleaning can be easily performed by disassembling each component.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

As shown in FIGS. 1 and 2, this replaceable filter device A consists of a filter 1 and a connecting table 11, and is mounted and connected to a drive device B.

The filter 1 includes a filtration tank 2, a filter element 3, a filter attachment mechanism 4, and a scraper mechanism 5.
and scraper rotating shaft (hereinafter referred to as "rotating shaft") 6
and clamps 7 and 8.

The filtration tank 2 includes a top plate 21 having a liquid supply port 21S on the peripheral edge, a liquid drain port 21E near the center, and an inclined surface 21f on the upper surface of the circumferential edge.
A drain port 22D is provided on the peripheral edge, the rotating shaft 6 is pivotally supported in the center, and an inclined surface 22f is provided on the lower surface of the circumferential edge.
A connecting collar 2 which forms inclined surfaces 23f ₁ and 23f ₂ facing each other on the outer side of the upper and lower edges.
It consists of a cylindrical side wall 23 having 3T ₁ and 23T ₂ and clamps 7 and 8. Then, connecting ribs 23T 1 , 23 of the side wall ₂₃ are attached to the top plate 21 and the bottom plate 22.
T ₂ are overlapped and held together, and the overlapped portions are further fitted and fastened by clamps 7 and 8 to be assembled.

Note that the clamps 7 and 8 have the inclined surface 2 on the inner surface.
Ladder-shaped grooves 7m and 8m are formed to abut on 1f, 23f ₁ and 23f ₂ , 22f, respectively.

The cylindrical filter element 3 has its upper end fitted onto a stepped portion 21d formed on the back surface of the top plate 21,
A filter support 41 that fits inside and supports the lower end, and a mounting bolt 4 that passes through the center of the filter support and screws into a convex portion 21t protruding from the center of the back surface of the top plate 21.
2 and are attached to the top plate 21 by a filter attachment mechanism 4.

The scraper mechanism 5 is provided in the filter tank 2 so as to scrape off filter slag accumulated on the outer surface of the filter element 3 with its tongues, and is provided between the upper edge of the filter element 3 and the outer periphery of the filter support 41. Teflon rings 51 and 52 are interposed therebetween.

The rotating shaft 6 has a fitting part 6 whose tip part is a regular square.
k, followed by a protruding collar 6t,
It is removably connected to the scraper mechanism 5, and its base end is shaped to fit into a coupling c and a key k fixed to the tip of the motor shaft Mj protruding from the top surface of the drive device B. They are free to leave.

Next, the support stand 11 has a frame shape in which a doughnut-shaped connecting plate 12 and the bottom plate 22 are connected by a plurality of supports 13. A hole 12a is bored.

On the other hand, the drive device B is one in which a motor M is provided on a base D.

The base D is made up of a donut-shaped large substrate K with a plurality of columns S erected thereon, and a top plate T supported and connected thereto. The top plate T has a motor M vertically disposed on the lower surface, a motor shaft Mj protruding from the center of the upper surface, and a pair of coupling bolts b at positions corresponding to the blank holes 12a when the coupling plates 12 are overlapped. The replaceable filtration device A and the drive device B are integrally connected by a pair of thumbscrews C.

With the above configuration, the motor M is driven, the scraper mechanism 5 is rotated, and the filter dregs accumulated on the outer surface of the filter element 3 is scraped off while the liquid to be filtered is fed into the filter tank 2 from the liquid supply port 21S. The filtered solution is discharged from the drain port 21E and used. In addition, if necessary, drains containing filter slag can be
Remove from drain port 22D.

Note that this device, which is a combination of replaceable filtration device A and drive device B, can also be used in an upside-down position depending on the situation of the machine to which it is installed. is performed from the drain port 22D, and the drain is removed from the liquid supply port 21S.

Moreover, when changing the liquid to be filtered, another replaceable filtration device equipped with a filter element 3 to be applied to the next solution is prepared in advance and replaced with this.

That is, by removing the pair of thumbscrews C, the replaceable filtration device A can be easily lifted, and the rotating shaft 6 can also be removed from the coupling c and key k fixed to the motor shaft Mj, so that it can be separated from the drive device B. Further, setting another replaceable filter device prepared above to the drive device B can be easily performed by performing the reverse operation at the time of removal.

In addition, in order to clean the inside of the filter tank 2, the clamp 7
By removing the filter element 3, the top plate 21 with the filter element 3 still attached can be pulled upward, and by unscrewing the mounting bolt 42, the filter element 3 and the filter support 41 are also separated. Further, the scraper mechanism 5 can also be removed from the rotating shaft 6 by simply pulling it up. Furthermore, when the clamp 8 is removed, the side wall 23 is also separated.

In this way, all of the constituent parts of the filter 1 can be quickly and easily disassembled into individual parts through extremely simple operations, making it possible to perform thorough and complete cleaning.

Note that the cylindrical filter element 3 in the present invention may be of any desired shape, such as punched metal, porous, or even one in which spiral filter holes are formed by winding a wire with a triangular cross section into a coil shape. I can do it.

[Effect of idea]

As explained above, according to the present invention, the filtration device can be separated from the drive device, and the filtration tank can be easily disassembled and made into a single item.
For filtration of many types and small quantities, replaceable filtration devices with filter elements suitable for each type are prepared and can be replaced easily and quickly, making it possible not only to perform extremely efficient filtration. It is also possible to minimize wasted filtrate and prevent contamination with other solutions.

Furthermore, since the filtration tank can be easily disassembled, all built-in parts can be separated and thoroughly cleaned, making it possible to obtain a filtration tank in a completely cleaned state.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional front view of an embodiment of the present invention, FIG. 2 is a longitudinal sectional view, and FIG. 3 is a plan view. 2... Filter tank, 3... Filter element, 5
...Scraper mechanism, 6...Scraper rotation axis,
7, 8...clamp, 7m, 8m...concave groove, 11
...Connection stand, 21...Top plate, 21S...Liquid supply port,
21E... Drain port, 22... Bottom plate, 22D... Drain port, 23... Side wall, 23T ₁ , 23T ₂ ...
Connecting collar, M...motor, Mj...motor shaft,
A...Replaceable filtration device, B...Drive device.

Claims (1)

[Scope of claim for utility model registration] (1) Equipped with a liquid supply port, a liquid discharge port, a drain port, etc.
It consists of a removable filter tank having a cylindrical filter element and a scraper mechanism that can freely rotate the outer periphery of the filter element, and a connecting stand connected to the bottom plate of the filter tank, and the connecting stand and A replaceable filtration device, characterized in that a scraper rotating shaft supported by the bottom plate is detachably connected to a top surface of a drive device equipped with a motor and a motor shaft protruding from the top surface. (2) The disassembleable filtration tank has a top plate with supply and drain ports, a top plate with a removably mounted filter element on its inner surface, a drain port, and a scraper rotating shaft that is detachably connected to the scraper mechanism. The cylindrical side wall is overlapped and clamped by the connecting ribs protruding from the outer surface of the upper and lower edges of the bottom plate, and two clamps forming ladder-shaped grooves on the inner surface are attached to the overlapping portion. 2. The replaceable filtration device according to claim 1, wherein the filtration device is configured by being externally fitted and fastened to the filtration device.