KR860001380B1 - Liquid filtering devices - Google Patents

Abstract

This invention is concerned with a liquid filter appts. characterised by the inclusion of a stirring plate. The stirring plate (8) is located at the liquid exhausting side of a filter element (1) and rotates relative to the filter element. By the stirring plate, there is no sticking material on the tapered surface(2b) of the filter element. And also the filter element(1) comprises circular surface meshes and a round scraper(6) works to remove the impurities in the liquid.

Description

Liquid filter

1 is a cross-sectional view showing an embodiment of the present invention.

2 is a perspective view showing the relationship between the filter element and the stirring body.

3 is an enlarged cross-sectional view thereof.

4 is an enlarged plan sectional view taken along the line (A)-(A) of FIG.

* Explanation of symbols for main parts of the drawings

(1): filter element (2): bar

(2a): outer peripheral surface (2b): tapered surface

(4): box (5): outlet of the liquid

(6): round scraper (8): stirring body

(11): body 12: inlet of the liquid

(13): cover body 27: outlet

(M): Drive

In general, the present invention is described in detail with respect to the liquid filtration device by rotating the stirring plate installed in close proximity to the cylindrical filter element relative to the filter element, to eliminate the retention of the filtered liquid on the filter element of the filter element The present invention relates to a liquid filtration device that prevents the attachment of contaminants and enables long-term filtration.

In high viscosity and high concentration liquid filtration devices such as chocolate, molasses and detergents, the impurities in the liquid, lead components contained in the liquid, and the clogging of the porcelain due to wascelinous are frequently generated. The scraper is scraped off and the filter surface is regenerated.

However, this type of filter element has a narrow width at the inflow side of the liquid and a wide tapered opening at the discharge side of the liquid, and at the discharge side of the liquid, the flow rate of the liquid Because of the decrease, retention occurred and there was a drawback that deposits occurred on the tapered filter walls described above.

Accordingly, the present invention provides a liquid filtration apparatus which is installed on the discharging side of the filter element in order to eliminate the above-mentioned defects, and rotates relatively with respect to the filter element, and prevents clogging of the filtration surface so as to continuously operate for a long time. It aims to provide.

Another object of the present invention is to provide a liquid filtration apparatus in which a stirring plate holds a means for forcibly discharging the filtered liquid.

The liquid filtration apparatus in the related art is concentrated and retained on the inflow side of the filter element, so that the agitation is prevented by agitation. However, the liquid filtration device is left unattended in the discharge of the liquid after filtration.

As a result of intensive studies on the advantages of the present invention, it has been found that the retention of liquid in the discharging side of the filter element causes the occurrence of deposits on the side of the element, resulting in clogging of the filtration surface. will be.

Embodiments of the present invention will be described below with reference to the drawings.

(1) is a cylindrical filter element composed of a plurality of bars (2) arranged approximately parallel with regular intervals, the upper opening of which covers the cover (3), and the lower part of the liquid via the box (4) It communicates with the exit 5 of.

The bar 2 constituting the filter element 1 has an opening (slit) defined as adjacent bars, and the outer circumferential surface 2a is smooth and the tapered surface 2b which extends inwardly between the adjacent opposing sides. ).

The filter element 1 is a method in which a wire is wound around a drum with a predetermined pitch in a drum outer periphery having an opening, and the surface of the wire is cut and polished to form an expanded state inwardly. A method of forming a slit plate having a self-preservation function formed integrally by forming a V-shaped cut groove at a predetermined interval and discontinuously forming the V-shaped cut groove into a cylindrical shape so that the flaw retains the expansion inwardly. And the like can be formed.

The outer circumferential surface 2a of the filtration surface bar of the filter element 1 described above is smooth and also becomes a surface mesh, and the surface of the round scraper 6 is attached to the mesh by the revolution of the round scraper 6. The filter surface can be regenerated by removing the contaminants present.

The stirring body 8 which protrudes on the rotating shaft 7 which extends to the center of a cylindrical filter element in the same axis as this round scraper 6 stirs the filtered liquid in the element 1.

The stirring body 8 consists of a support arm 9 which is built on the rotating shaft 7 and an inclined plate 10 which is secured by holding the inclined to the arm appropriately. The outer surface of the inclined plate 10 has a filter element ( It is located on the concentric circle at predetermined intervals with respect to 1), and is rotated around by the rotating shaft in a state close to the inner circumference of the filter element 1.

The stirring body 8 is formed in a plurality of stages, and is disposed on the rotational shaft 7 in at least two directions so that the liquid descends as it rotates in turn, the lower end of the inclined plate 10a with respect to the peripheral rotation direction. The vertical relationship is formed in the position which intersects with the upper end of this next inclination board 10b. (11) is a main body with an inlet (12) of the liquid on the upper side and the outlet (5) of the liquid above the lower portion, respectively, the upper opening is covered with a cover (13), the cover body (13) In the upper part of the upper part, the drive device M which rotates the round scraper 6 and the stirring body 8 at low speed is mounted and installed.

This drive device M is constituted as a motor 14, a speed reducer 15, and a cuff ring 16, and is connected to the rotary shaft 7.

The round scraper 6 is axially supported by the shaft 19 fixed to the upper and lower ring plates 17 and 18 and is pressed against the filter element 1 by the coil spring 20.

Moreover, the outer stirring body 21 is provided between the upper and lower ring plates 17 and 18, and the outer periphery of the filter element 1 is stirred so that the liquid which flowed in from the inlet 12 of liquid may not remain. Reference numeral 22 is a connecting member which connects the rotary shaft 7 and the upper ring plate 17 to transmit the rotational force, and is fixed to the upper ring plate 17 from the upper side with a wedge attached to the rotary shaft 7.

The upper ring plate 17 is externally wound on the upper portion of the filter element 1 through the O-ring 23 between the cover 3 of the filter element 1. Reference numeral 24 denotes a receiving plate for internally fixing the lower part of the filter element 1, and is fixed to the upper end of the box 4 in communication with the outlet 5 of the liquid.

The box 4 is attached to the lower part of the main body 11 by the support 25, and a stopper 26 is provided to prevent the filter element 1 from rotating.

The main body 11 attaches the outlet 27 to the lower conical bottom portion, and attaches a ring-shaped washing nozzle 28 to the upper portion of the conical shape. Reference numeral 29 denotes an air vent attached to the lid 13.

As the above-mentioned stirring body 8, in addition to the above-described configuration, the plate may be erected on the rotary shaft 7 in the axial direction thereof, or the end plate may be screw-shaped and supported on the rotary shaft 7. Can be.

In the liquid filtration device made from such a configuration, the chocolate stock solution, molasses, detergent stock solution, etc. delivered from the inlet 12 of the liquid are filtered through the filter element 1 at the main surface of the main body 11, and the filtered liquid is stirred. The outlet 5 of the liquid via the box 4 without being agitated in the sieve 8 and discharging the liquid of the filter element 1, in other words, in the portion that widens the slit width of the element 1. Is sent to the next process.

During this filtration work, the round scraper 6 and the external stirring body 21 rotate to always perform the filter surface regeneration work, and settle the scraped-off contaminants and suspended lumps, etc., and filter by the external stirring body 21. The filtration operation is promoted by moving the stock solution remaining in the outer peripheral portion of the element 1.

On the other hand, the stirring body 8 which rotates at the same time stirs the filtered liquid which stays in the inner peripheral part of the filter element 1, especially the part which expands the width of a slit, and furthermore, it promotes a fall and hopefully promotes the fall of the filter element 1 No deposits are formed on the tapered surface 2b, and clogging of the slit is prevented.

As mentioned above, since the liquid filtration apparatus which concerns on this invention intensively stirs the inner periphery of the filter element 1, a deposit does not arise in the taper surface 2b of the bar 2, and clogging of a slit is prevented for a long time. do.

In addition, the filter element 1 is composed of an accurate circular surface mesh, the round scraper 6 is smoothly operated to completely remove the contaminants, the filter surface is regenerated.

Further, by giving the liquid feeding function to the stirring body 8 downward, the filtered liquid can be moved to promote the filtration work.

Therefore, even in the case of filtering liquids such as chocolate, molasses, detergent, heavy oil, etc., it is possible to carry out long-term filtration automatically and continuously as a small filtration device.

Claims (1)

The inlet 12 and the outlet 5 of the liquid face each other up and down, and the main body 11 is provided with a discharge port 27 at the bottom of the cone shape. The filter element (1) constituted by a plurality of bars (2) having a tapered surface (2b) extending inwardly between adjacently opposed shaft portions with a smooth (2a) portion is internally fixed to the upper part of the main body, and the filter element is fixed. A round scraper (6) circumscribed to the outside and a stirring body (8) built in the filter element are rotated to face each other, and a box (4) communicating with the outlet of the liquid is provided at the bottom of the filter element. And a driving device (M) for covering the cover body (13) on the upper opening and rotating the round scraper and the stirring body at a low speed on the cover body.

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