JPH0757287B2 - Solid-liquid separation device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a solid-liquid separator, and is particularly suitable for separating aluminum chips from a liquid and collecting the chips.

[Prior art and its problems]

Conventionally, a method of filtering metal chips generated from machine tools from a liquid has been the mainstream method, though
Since it often causes clogging, it is necessary to attach a backwashing device and to drive it at all times, and there is a drawback that the wire mesh is often broken when scraping the clogging with a scraper.

[Object of the Invention]

An object of the present invention is to provide a solid-liquid separation device that does not cause clogging and does not require a backwash device or a scraper.

[Structure of Invention]

In the solid-liquid separation device according to the present invention, between the solid-liquid storage box and the discharge port, a plurality of movable annular plates are arranged in a stack in the axial direction, and a gap is held between the stacked movable annular plates in sliding contact. Insert the plate from the outer peripheral direction and support it on the fixed body,
By inserting the spacing plate, a narrow gap-shaped liquid outflow passage extending from the inner diameter direction to the outer diameter direction is formed between the stacks of the movable annular plates, and the outer periphery of the mountain portion is larger than the inner diameter of the movable annular plate and is larger than the outer diameter. Is a spiral screw mechanism that is driven by a prime mover by extending a spiral body twisted to a small diameter from the inside of the solid-liquid storage box in the opening direction of the discharge port, and at the same time, extending the spiral body to the center hole of the movable annular plate. By being engaged, the outer periphery of the ridge of the spiral body rotates while pressing the inner diameter surface of the movable annular plate to cause the movable annular plate to perform an eccentric rotational motion, and the inside of the solid-liquid storage box is driven when the spiral feeding mechanism is driven. Solid liquid is transferred in the axial direction so that the liquid flows out from the liquid outflow passage and the solid matter is discharged from the front discharge port, and
The fine solid matter that has entered the liquid outflow passage is configured to be removed by the sliding contact action with the spacing plate accompanying the eccentric rotational movement of the movable annular plate and the outflow action of the liquid.

〔Example〕

In the drawings of the embodiment, 1 is a solid-liquid storage box having a solid-liquid input port 2 opened on the upper surface, 3 is a discharge port opened forward from the solid-liquid storage box 1 at a predetermined interval, 4 ... 4 Is a movable annular plate made of a thin metal plate, and a plurality of sheets are arranged in a stack in the axial direction between the solid-liquid storage box 1 and the discharge port 3. Numerals 5 ... 5 are spacing plates made of thin metal plates, which are supported by the fixed body 6 in such a manner that they are fitted from the outer peripheral direction so as to be slidably contacted between the laminated layers of the movable annular plates 4 ,. By inserting these space holding plates 5 ... 5, narrow gap liquid outflow passages 7 ... 7 are formed between the movable annular plates 4. 8 is a prime mover such as a motor installed behind the solid-liquid storage box 1, 9 is a spiral body rotated at a low speed by the prime mover 8, and the outer circumference of the mountain portion is larger than the inner diameter of the movable annular plates 4 ... The spiral feeding mechanism 10 is constructed by being twisted to have a smaller diameter than the outer diameter and extending from the inside of the solid-liquid container 1 toward the opening of the discharge port 3. In addition, the extending portion of the spiral body 9 is connected to the movable annular plates 4 ... 4
By being inserted into the center hole of the spiral body 9, the outer periphery of the mountain portion of the spiral body 9 rotates while pressing the inner diameter surface of the movable annular plates 4 ... 4 to cause the movable annular plates 4 ... 4 to perform an eccentric rotation motion. It is configured as follows. Reference numeral 11 is a restriction bar arranged so that the inner diameter surface of the movable annular plates 4 ... 4 does not separate from the spacing plates 5.

The solid-liquid filled in the solid-liquid storage box 1 flows in the front-rear direction along the spiral body 9 and flows into the central holes of the stacked movable annular plates 4 ... Then, when the spiral feeding mechanism 10 is driven at a low speed, the solid liquid is advanced along the spiral body 9, the liquid is caused to flow outside from the liquid outflow passages 7 ... 7 and the solid matter is discharged from the front discharge port 3. To be Then, the fine solid matter that has entered the liquid outflow passages 7 ... 7 is removed by the sliding action of the spacing plates 5 ... 5 and the outflow action of the liquid. That is,
The liquid outflow passage 7 is used to select the solid matter discharged from the discharge port 3 and the fine solid matter flowing down from the liquid outflow passage 7 ...
The depth is set according to the depth of 7 ..., ie, the thickness t of the spacing plate 5. Therefore, various spacing holding plates 5 ... 5 for exchange having different plate thicknesses are prepared in advance, and by appropriately replacing them, the regulation standard of the solid overparticle size can be arbitrarily changed. Can be done.

〔The invention's effect〕

In the device of the present invention, the eccentric rotary motion of the movable annular plates 4 ... 4 accompanying the driving of the spiral body 9 performs the solid-liquid separation action and the cleaning action at the same time, so that clogging does not occur and a backwashing device or a scraper is not produced. Has the advantage of not requiring. In addition, the regulation of the solid particle size, that is, the selection of the solid matter discharged from the discharge port 3 and the minute solid matter flowing down from the liquid outflow path 7 ... 7 is performed by the liquid outflow path 7 ... 7.
Since it is a method of setting the depth depending on the depth, that is, the thickness t of the spacing plates 5 ... 5, various spacing plates 5 ... If this is done, by replacing this, the standard for regulating the solid particle diameter can be arbitrarily changed, which is extremely convenient.

[Brief description of drawings]

FIG. 1 is a side view of the external appearance of the device of the present invention, and FIG. 2 is a cross-sectional front view of the essential parts showing the relationship between the movable annular plate, the spacing plate and the spiral in the device of the present invention. It shows a state in which a spacing plate is fitted between the laminated plates, [B]
Shows a state in which the gap holding plate is pulled out from between the laminated layers of the movable annular plates in order to replace it with another gap holding plate. Fig. 3 [A]
Is a vertical sectional side view taken along the line AA of FIG. 2A, and FIG. 3B is a longitudinal sectional side view taken along the line BB of FIG. 2B. 1 ... Solid-liquid storage box, 3 ... Discharge port, 4 ... Movable annular plate,
5 ... Interval holding plate, 6 ... Fixed body, 7 ... Liquid outflow passage,
8 ... motor, 9 ... spiral, 10 ... spiral feeding mechanism.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B01D 29/66

Claims (1)

[Claims] 1. A plurality of movable annular plates (4) ... (4) are arranged in a stack in the axial direction between the solid-liquid storage box (1) and the discharge port (3), and these movable annular plates are arranged. Board (4) ……
Interval holding plate (5) that slides between the stacked layers of (4) (5)
Are inserted from the outer peripheral direction and supported by the fixed body (6), and the space holding plates (5) ... (5) are inserted so that the movable annular plates (4). A narrow gap-shaped liquid outflow passage (7) (7) is formed to extend in the radial direction, and the outer circumference of the mountain portion is larger than the inner diameter of the movable annular plate (4) (4) and smaller than the outer diameter. Spiral twisted in (9)
From the inside of the solid-liquid container (1) toward the opening of the discharge port (3) and is driven by the prime mover (8).
(0) and by inserting the extended portion of the spiral body (9) into the center hole of the movable annular plates (4) (4), the outer periphery of the mountain portion of the spiral body (8) is moved to the movable annular plate (4). ) ……
The movable annular plate (4) is rotated while pressing the inner diameter surface of (4).
...... (4) is configured to perform eccentric rotational movement, and when the spiral feeding mechanism (10) is driven, the solid-liquid in the solid-liquid storage box (1) is axially transferred so that the liquid flows out into the fluid outflow path ( 7) ……
The solid matter is discharged to the outside from (7) and is discharged from the front discharge port (3), and the fine solid matter entering the liquid discharge path (7) (7) is moved to the movable annular plate (4). ) ... (4) is configured so that it can be removed by the sliding contact action with the spacing plate (5) ... (5) accompanying the eccentric rotational movement and the outflow action of the liquid. Liquid separator.