JPH0773642B2 - 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, wire mesh is the mainstream method for separating metal chips generated from machine tools from liquid,
Since it frequently causes clogging, it is necessary to attach a backwashing device to drive it continuously, 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, the inner diameter surface is perforated so as to be fitted eccentrically along the outer circumference of the ridge portion of the screwed body from the outer circumference of the ridge portion between the solid-liquid storage box and the outlet. The plurality of movable annular plates are arranged in a stacked manner in the axial direction, and the plurality of annular interstitial plates are punched so that the inner diameter surface is fitted substantially concentrically with the outer periphery of the threaded portion of the threaded body described later. Of the movable annular plate or annular interstitial plate, and by disposing the spacing-holding sliding protrusions at key points on the plate surface of the movable annular plate or annular interstitial plate, the space between the adjacent plate surfaces is removed from the inner diameter direction. A threaded body formed by forming a narrow gap-shaped liquid outflow groove extending in the radial direction and winding a spiral fin around the outer circumference of the core material driven by the prime mover is discharged from the solid-liquid storage box. To form a screw-feeding machine groove in the opening direction, and the extension portion of the screw-applied body is provided with a movable annular plate or And the center hole of the annular disc, the outer periphery of the threaded portion of the threaded body rotates along the inner surface of the annular disc while pressing the inner surface of the movable annular plate, causing eccentric rotation of the movable annular plate. When the screw feeding and feeding machine groove is driven, the solid-liquid in the solid-liquid storage box is transferred in the axial direction so that the liquid flows out to the outside from the liquid outflow groove and the solid matter is discharged to the front. The fine solids discharged from the outlet and entering the liquid outflow groove are removed by the sliding action of the sliding protrusions and the outflow action of the liquid accompanying the eccentric rotational movement of the movable annular plate. I configured it.

〔Example〕

In the drawings of the embodiment, 1 is a solid-liquid container with a solid-liquid inlet 2 opened on the upper surface, 3 is a discharge port opened forward from the solid-liquid container 1 at a predetermined interval, and 4 is solid liquid. A prime mover 5 such as a motor installed at the rear of the housing box 1 is a screw body rotated at a low speed by the prime mover 4, and for example, one core member 6a is provided as shown in FIG. A spiral fin 7a is wound around the outer periphery as the horizontal axis, or a plurality of core materials 6b ... 6b arranged in parallel at regular intervals as seen in FIG. 7b is wound to form a threaded body having ridges and valleys, and the threaded body 5 is extended from the inside of the solid-liquid storage box 1 in the opening direction of the discharge port 3 to form the threading feeder groove 8. Composed. Reference numeral 9 indicates a movable annular plate made of a thin metal plate, and a plurality of the movable annular plates are arranged in the axial direction in a laminated manner between the solid-liquid storage box 1 and the discharge port 3, and the inner diameter surface is formed by the threaded body. 5 is eccentrically fitted from the outer circumference of the crest portion to the outer circumference of the trough portion, so that the inner diameter b is perforated such that the inner diameter b is smaller than the mountain diameter M of the threaded body 5 and larger than the valley diameter G. . Ten…
Reference numeral 10 denotes an annular spacer made of a thin metal plate, which is supported by the fixed body 11 in a state of being interposed between the movable annular spacers 9 ... In order to fit the outer periphery of the crest portion substantially concentrically, the inner diameter B is perforated such that the inner diameter B is the same as or slightly larger than the crest diameter M of the threaded body 5. Then, by disposing the sliding projections 12 ... 12 for maintaining the spacing for regulating the solid particle diameter in the plate surface points of the movable annular plates 9 ... 9 or the annular spacers 10. , Narrow gap-shaped liquid outflow grooves 13 are formed between the adjacent plate surfaces from the inner diameter direction to the outer diameter direction.
The spacing protrusions 12 ...
As shown in FIG. 7 (b), the movable annular plates 9 ... 9 may be projected on both sides, or, as shown in FIG. 7 (b), the movable annular plates 9 ... 9 and the annular spacer 10 ... Each of the ten surfaces may be convexly provided in the same direction. The extending portion of the threaded body 5 is inserted into the center holes of the movable annular plates 9 ... 9 and the annular interphase plates 10 ... 10, but as described above, the movable annular plates 9 ...
Since there is a difference in diameter between the inner diameter b of the annular disc 10 and the inner diameter B of the annular disc 10, when the threaded body 5 rotates, the outer periphery of the mountain portion presses the inner diameter surface of the movable annular plate 9 while the annular disc is rotated. By rotating along the inner diameter surface of 10, the movable annular plate 9 is caused to perform an eccentric rotation motion.

The outer diameter a of the movable annular plates 9 ... 9 is larger than the inner diameter B of the annular interstitial plates 10 ... 10 and smaller than the outer diameter A, and is movable by the outer circumference of the valley portion of the threaded body 5. Plate 9 ... 9 is an annular plate 10 ...
It is regulated so that it does not protrude from the outer periphery of 10.

The most desirable dimensional ratio between the movable annular plate 9 and the annular spacer 10 will be described with reference to FIGS. 3 and 4. a = A-α [Note] α: outer diameter difference α <W W = W ′ Become. If α is larger than W, it becomes impossible to regulate the particle size of the excess material. Further, if W is larger than W ', the cleaning effect of the liquid outflow grooves 13 ... 13 is deteriorated, and if W'is larger than W, the movable annular plate 9 may be damaged. The inner diameter B of the annular spacer 10 is 5
It is desirable that the diameter is slightly larger than the thread diameter M of the threaded body so that the rotation can be performed smoothly. The difference between the thread diameter M of the threaded body and the inner diameter b of the movable annular plate is the amount of sliding of the movable annular plate 9 in the radial direction. The root diameter G of the threaded body is set so that the movable annular plate 9 is not excessively eccentric.

The solid-liquid filled in the solid-liquid storage box 1 flows in the front-rear direction along the threaded body 5, and flows into the center holes of the stacked movable annular plates 9 ... When the screw-feeding machine groove 8 is driven at a low speed, the solid liquid is advanced in the axial direction along the screw-applying body 5, the liquid is caused to flow out from the liquid outflow grooves 13 ... 13 and the solid matter is moved forward. It is discharged from the discharge port 3 of. The fine solid matter that has entered the liquid outflow grooves 13 ... 13 can be removed by the sliding action of the sliding protrusions 12 ... 12 and the outflow action of the liquid.
The regulation of the solid over-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 groove 13 ... 13 is performed by the depth or interval of the liquid outflow groove 13 ... 13. It is set by the height t of the holding sliding protrusion 12 ... 12. Therefore, various movable annular plates 9 ... 9 for exchange having different heights of the convex elements 12 ... 12 are prepared in advance, and by appropriately replacing them, the regulation standard of the solid over-particle diameter is determined. It can be changed arbitrarily.

〔The invention's effect〕

In the device of the present invention, since the cleaning action is performed simultaneously with the solid-liquid separation action by the eccentric rotation movement of the movable annular plates 9 ... 9 accompanying the driving of the screw applying body 5, clogging does not occur, and the backwashing device does not occur. It has the advantage that no scraper or scraper is required. Moreover, 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 groove 13 ...
The depth of the groove of 13, that is, the height t of the sliding protrusion 12 ...
Since it is a method of setting by using,
If various kinds of movable annular plates 9 for replacement with different heights are prepared in advance, by replacing them, it is possible to arbitrarily change the regulation standard for the solid particle size. , Very convenient. Further, the threaded body 5 in the device of the present invention
Is not a mere ribbon screw, but has a rigid structure with a spiral fin wound around the core with the horizontal axis as the horizontal axis, so it can be deformed even in a solid liquid with high concentration or a solid liquid with high viscosity. Without it, it can effectively perform overfunction.

[Brief description of drawings]

FIG. 1 is an external side view of the device of the present invention, and FIG. 2 is an external side view showing a structural example of a threaded body in the device of the present invention.
[A] is a case where a screw is wound around the horizontal axis to form a threaded body having ridges and valleys, and [B] is the inner side of a ribbon screw wound in a threaded shape. This is an example in which a bottom plate is brought into contact with and a threaded body having peaks and valleys is formed. FIG. 3 is a front view of a movable annular plate in the device of the present invention, and FIG. 4 is a front view of an annular plate in the device of the present invention. FIG. 5 is a vertical sectional side view of a main part showing the relationship between the movable annular plate and the annular interstitial plate and the threaded body in the device of the present invention, [a] using the threaded body of FIG. 2 [a]. The case [B] is a case using the threaded body of FIG. FIG. 6B is a vertical sectional front view taken along the line YY of FIG. 5B, and FIG. 6B is a vertical sectional front view taken along the line YY of FIG. 5B. FIG. 7 (a) is a vertical sectional side view of a main part showing an example in which the spacing holding sliding protrusions are provided on both sides of the movable annular plate, and FIG. 7 (b) shows the spacing holding sliding protrusions movable. It is a principal part longitudinal cross-sectional view which shows the example in which the annular plate and the annular interstitial plate were made to project in the same direction on one side. FIG. 8 is a vertical cross-sectional front view of a main part illustrating the bearing mode of the annular disc in the device of the present invention. 1 ... Solid-liquid storage box, 3 ... Discharge port, 4 ... Motor, 5 ...
… Screwed body, 8 …… Screwed feeding machine groove, 9 …… Movable annular plate, 10
…… Annular disc, 12 …… Sliding protrusions for maintaining spacing, 13 …… Fluid outflow groove.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location B01D 33/58

Claims (1)

[Claims] 1. From the solid-liquid storage box (1) to the discharge port (3), the inner diameter surface is eccentrically fitted along the threaded body (5) described below from the ridge outer circumference to the valley outer circumference. Plural movable annular plates (9) ... (9) are arranged in a stack in the axial direction so that the inner diameter surface fits almost concentrically with the outer periphery of the threaded body (5) described below. A plurality of annular discs (10) ... (10) perforated as shown in the figure are interposed between the movable annular plates (9).
It is supported by 1), and the sliding protrusions (12) for maintaining spacing are provided on the plate surface points of the movable annular plates (9).
By arranging (12), a narrow gap-shaped fluid outflow groove (13) extending from the inner diameter direction to the outer diameter direction between adjacent plate surfaces.
... (13) is formed, and a core is driven by the prime mover (4), and a spiral fin is wound around the outer periphery of the core as a horizontal axis.
(5) is extended from the inside of the solid-liquid storage box (1) in the opening direction of the discharge port (3) to form a screw-feeding machine groove (8), and the above-mentioned screw-threaded body (5).
The extension part of the movable ring plate (9) …… (9) and ring plate (10)
...... By inserting it into the center hole of (10), the threaded body
The outer periphery of the mountain portion of (5) rotates along the inner diameter surface of the annular plate (10) …… (10) while pressing the inner diameter surface of the movable annular plate (9) …… (9). 9) ... (9) is configured to perform an eccentric rotary motion, and when the screw feeding and feeding machine groove (8) is driven, the solid-liquid in the solid-liquid storage box (1) is transferred in the axial direction and the liquid is removed. The liquid outflow groove (13) …… (13) flows out to the outside and the solid matter is discharged from the front discharge port (3), and the fine solids that have entered the liquid outflow groove (13) …… (13). Items can be removed by the sliding action of the sliding protrusions (12) ... (12) and the outflow action of the liquid accompanying the eccentric rotation of the movable annular plate (9). A solid-liquid separation device characterized by being configured.