JPS61200824A - Filter apparatus - Google Patents

Abstract

PURPOSE:To keep filtering efficiency high and to prolong the life of a filter element, by always rotating a scraper by utilizing the inflow force of a fluid to be filtered. CONSTITUTION:The inflow raw solution from a supply pipe 1g pushes a blade 4y to advance and enters a raw solution part 1G through a raw solution supply port 4a while rotates a blade wheel 4 and filtered by a filter element 2e to enter a filter 2 as a pure solution. This pure solution is succeedingly passed through a pure solution part 1J from an outflow port 10 and sent out to a required direction by a pure solution pipe 1j. At this time, the scraper mechanism 3 integrally connected to the blade wheel 4 through a rotary shaft 4k is rotated and scrapers 3s stirr the interior of the raw solution part 1G and the filter cake stagnated on the surface of the filter element 2e is released by the stirred liquid stream to be fallen in the vicinity of an inner bottom plate 1b. Because the concn. of impurities in the raw solution part 1G gradually increases by this operation, said impurities are excluded from a drain pipe 1d at a proper time.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a filtration device that maintains filtration performance by applying rotational force to a scraper and stirring the fluid in a casing using the inflow force of a fluid to be filtered. Regarding.

[Conventional technology]

Conventionally, in a filtration device using a cylindrical filtration element,
The scraper is operated to remove scum from the surface of the element, and the scraper handle is manually rotated or rotated by a motor using temporary external force when the filtration performance decreases. Was.

[Problem that the invention seeks to solve]

However, in such conventional methods, the F slag solidifies as the adhesion time passes, and even if the scraper is operated, sufficient peeling cannot be obtained, and after a certain period of use, the filtration device and filtration It requires time and effort to disassemble the device and thoroughly clean the element, as well as to wipe down the inner surface of the casing.Furthermore, the filtration performance repeatedly decreases and recovers, resulting in poor filtration efficiency. There are drawbacks.

[Means for solving problems]

The present invention has been made in view of the above-mentioned problems.
The purpose of this invention is to solve these problems by configuring the scraper to constantly rotate using the flow force of excess fluid.

〔Example〕

Hereinafter, a first embodiment of the present invention will be described based on FIG.

First, I will explain the configuration.

This filtration device A includes a filter 2 fixed inside a housing 1.
The scraper mechanism 3 is mainly composed of a scraper mechanism 3 that rotates outside the outer periphery of the filter, and a blade wheel 4 that provides driving force for the scraper mechanism 3.

In the case 1, a lid 1C is attached to the top end of a cylindrical main body 1H via a gasket 1p, while a bottom part accommodates filtered fluid (hereinafter referred to as "pure liquid") with an inner bottom plate 1b and an outer bottom plate 1S. Furthermore, the portion formed by the inner bottom plate 1b and the lid 1C is a stock solution section 1G that accommodates the fluid to be filtered (hereinafter referred to as "stock solution"). A drain pipe 1d for discharging the drain from the lower part of the stock liquid section 1G and a pure liquid pipe 1 for discharging the pure liquid from the pure liquid section 1J are attached to the side surface of the main body 1H.

Next, the filter 2 equipped with the cylindrical filter element 2e is fitted onto a fixing bolt 2b erected at the center of the inner bottom plate 1b, and is fixed by being tightened with a nut 2n. A plurality of outflow holes 1a communicate from the inside of the filter 2 to the pure liquid section 1J.
is perforated in the inner bottom plate 1b.

Next, the scraper mechanism 3 includes a plurality of rod-shaped scrapers 3S.
is vertically suspended from the outer periphery of the mounting disc 3t along the element 2e, and the tip is screwed onto a rotating shaft 4 (to be described later) at the center of the mounting disc 3t, and is fastened with a rotation locking nut 3n. ing.

Next, the blade wheel 4 is placed in the blade wheel chamber 4Y formed by the partition plate 4S and 1i1c mounted on the annular projection 1t formed on the upper inner periphery of the housing 1. Bearing 4b provided on the lower surface.

A rotating shaft 4k is supported by the rotating shaft 4b'.

Then, a supply pipe 1g for supplying the stock solution to a required location on the side surface of the main body in the blade chamber 4Y portion is attached with a required inclination, and a partition plate 4S on the opposite side of the attachment location with respect to the rotating shaft 4k.
A stock solution supply hole 4a communicating with the stock solution section 1G is bored at an appropriate position. (See Figure 2) Note that 4h is a donut-shaped reinforcing plate that connects the wings 4y from one side.

Next, the effect will be described.

The stock solution flowing from the supply pipe 1g pushes the blades 4y, rotates the impeller 4, and passes through the stock solution supply hole 4a to the stock solution section 1G.
to go into. Then, it is filtered by the element 2e and enters the filter 2 to become a pure liquid. Subsequently, the liquid is sent out in a desired direction from the outflow hole 1a through the pure liquid section 1J and by the pure liquid pipe 1j.

At this time, the scraper mechanism 3, which is integrally connected to the impeller 4 through the rotating shaft 4k, rotates, and the scraper 3S sweeps up the furnace slag on the surface of the filtration element 2e for stirring the raw liquid part 1G. It peels off due to the stirring liquid flow and falls near the inner bottom plate 1b. As a result, the concentration of impurities in the stock solution portion 1G gradually increases, so they are removed from the drain pipe 1d at an appropriate time.

Note that this embodiment can also be applied to the scraper mechanism of the filtration device t (11), which was filed on the same day by the applicant of the present invention.

Next, a second embodiment will be explained based on FIG. 3 and subsequent figures.

This filtration device 1s rotates by itself instead of stirring the stock solution in the stock solution section 1G by a combination of the impeller 4 of the first embodiment and the scraper mechanism 3 having a rod-shaped scraper 3S as a scraper rotation means. In other words, the spiral scraper mechanism 13 uses a spiral scraper 13S that surrounds the outer periphery of the filtration filter 2e, with its proximal end connected to the rotating arm 13u and its distal end near the inner bottom plate 1b. and are fixed to a rotating ring 13r surrounding the filter 2.

A pair of L-shaped fittings 1t attached to the inner surface of the main body 1H of the casing 1 near the lid 10 include a support arm 14 having a bearing 14b as a center for holding the rotating shaft 131 erected on the rotating arm 13u. is included.

Further, on the inner surface of the main body 1H, there are provided three chain-shaped rolling wheels 1W to support the rotating ring 13r.

Note that 2C is the tip cover of the filter 2 that guides the flow of the stock solution.

With the above configuration, the stock solution supplied from the stock solution tube 1g passes through both sides of the support arm 14 and attempts to push the surface of the spiral scraper 135 in the direction of arrow N. Therefore, the scraper 135 rotates in the direction of arrow M due to this force. That is, the spiral scraper mechanism 13 constantly rotates around the outer periphery of the filtration element 2e in response to the inflow of the stock solution, and continues to stir the stock solution.

Note that the flow of pure liquid and other functions are the same as in the first embodiment.

〔Effect of the invention〕

As explained above, the present invention uses the inflow force of the fluid to be filtered to constantly rotate the scraper to stir the stock solution in the casing. The flow not only forces separation but also promotes filtration, which not only maintains high filtration efficiency but also extends the life of the element.

Moreover, since it is configured inside the housing and does not require external force such as a motor, the external structure is simple and extremely advantageous in terms of safety and handling.

[Brief explanation of drawings]

FIG. 1 is a partially omitted vertical sectional view of the first embodiment of the present invention, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, and FIG.
FIG. 4 is a longitudinal cross-sectional view of the second embodiment with a partially omitted cross section, and is a cross-sectional view taken along the line ■--■ in FIG. 3. 1... Housing 2... Filter 3... Scraper mechanism 3s... Rod-shaped scraper 4.・・・・・・
... Impeller 13 ... ... Spiral scraper mechanism 13S
...Spiral scraper 13r ... Rotating ring procedural amendment September 2, 1985 Michibe Uga, Commissioner of the Patent Office 1, Indication of the case Patent Application No. 38888, 1985 2 , Title of the invention: Filtration device 3, Relationship with the person making the amendment Patent applicant name: Arai Tekkosho Co., Ltd. 4, Agent address: Tamuracho Building 5, 3-3-14 Shinbashi, Minato-ku, Tokyo, Amendment order Date Initiation 6. Subject of amendment: Description 9. Drawings (Detailed explanation of the invention 1. Brief description of the drawings, each column, Figure 4 added) 7. Contents of amendment: Specification, page 7, lines 15 and 16 The following ah between the lines
Add a section. FIG. 4 shows a third embodiment of the present invention, in which a hook portion 4ya is attached to the tip of the volume 4y of the impeller 4 shown in the first embodiment to improve the rotatability of the impeller 4. The impeller 4 is mounted on the upper part of the filter 2 so as to be rotatable, and the partition plate 4S is
is omitted. Since all other structural functions are substantially the same as those of the above-described embodiment, their explanation will be omitted.
The drawings are given the same reference numerals. 2) 3 Ibid., page 8, No. 1
In the first line, between "... sectional view taken along line IV-17 in Fig. 3" and "de", there is a line with ", Fig. 4 is a partially cut-away sloped view showing the third embodiment of the present invention". Insert a figure. 3) Add 1 drawing, Figure 4. Figure 4

Claims (3)

[Claims] (1) A filtration device including a filtration device in a housing, characterized in that a filtration device is configured to constantly remove slag by means of a scraper rotation means that utilizes the inflow force of a fluid to be filtered. (2) The scraper rotating means comprises a blade wheel and a scraper mechanism that suspends a plurality of rod-shaped scrapers and is integrally connected to the blade wheel.
Filtration device described in section. (3) The scraper rotation means is a helical scraper mechanism having a helical scraper whose base end is pivotally supported by the housing and whose distal end is held via a rotating ring. The filtration device according to item 1.