JP6739298B2 - Drainer - Google Patents

Description

TECHNICAL FIELD The present invention relates to a drainer for removing liquid such as water adhering to various aggregates such as sand and quarry, ore, slag, and other various solids from the solids.

A so-called drainer (drainer) is used to remove water adhering to various aggregates such as sand and quarry, ore, slag, and various solids from the solids. The object processed by the liquid draining device is hereinafter referred to as an object to be processed.

For example, in Patent Documents 1 and 2, there is a centrifugal draining device including a screen having a large number of through holes on a side surface of a truncated cone-shaped basket which is rotationally driven by a driving device such as a motor.

While the object to be treated supplied into the basket moves toward the large diameter side of the truncated cone-shaped basket, water adhering to its surface is gradually separated by centrifugal force, and the through holes of the screen are removed from the inside of the basket. Water that has passed out of the basket is discharged from the discharge port. Further, the object to be processed that has been dehydrated is discharged to the outside of the machine from the end of the large diameter portion of the basket.

JP 2004-225279 A JP 2000-317228 A

For example, when the object to be treated is an aggregate, the aggregate after the washing and classification is often separated from the adhering water by a draining device that vibrates a sieve. However, since the separation of water is insufficient only by draining by vibration, it is awaited for natural draining by storing (field stacking, etc.) in a stationary state for 1 to 2 days. When water is drained by such open stacking, the water adhering to the surface of the aggregate is separated, but most of the water in the non-exposed portion remains. Therefore, there is a problem that the aggregate after classification cannot be shipped immediately.

In this respect, according to the rotary drainer as described above, the separation of water is promoted more than that of the vibration drainer. However, the object to be processed in the basket may stay in one place and may not be smoothly guided to the large-diameter side end. When such retention occurs, there is a problem that the water once separated is mixed with the object to be treated again by the rotation of the basket before passing through the through hole of the screen. On the contrary, in some cases, the object to be processed in the basket may reach the end on the large diameter side at an early stage, and the object to be processed may be discharged without sufficient separation of water by centrifugal force.

Then, the subject of this invention is to isolate|separate efficiently the liquid adhering to a to-be-processed object.

In order to solve the above-mentioned problems, the present invention provides a tubular basket having one end in the axial direction of the cylinder and a discharge portion for the other end in the axial direction, and a cylindrical shaft of the basket. A through hole that is provided on the surrounding wall surface and connects the space inside and outside the basket, a rotating device that rotates the basket around the cylinder axis, and a plurality of spaces for the basket that rise from the wall surface of the basket toward the cylinder axis in the inner diameter direction. A liquid draining device equipped with a partitioning plate divided into the processing chambers was adopted.

Here, the cylindrical basket may have a configuration in which the truncated cone-shaped wall surface that expands from one end in the cylinder axis direction to the other end in the cylinder axis direction is provided in part or all of the cylinder axis direction.

In each of these aspects, it is possible to employ a configuration including a delivery device that delivers the object to be processed in the processing chamber to another processing chamber adjacent to the other end side in the cylinder axis direction.

Further, it is possible to adopt a configuration in which a pressing device for bringing the object to be processed into close contact with the wall surface in the processing chamber is adopted.

According to the present invention, a cylindrical basket having an input portion for the object to be processed at one end in the cylinder axis direction and a discharge portion for the object to be processed at the other end in the cylinder axis direction, and a space inside and outside the basket provided on a wall surface around the cylinder axis of the basket. A draining device that includes a through hole connecting the two, a rotating device that rotates the basket around the cylinder axis, and a partition plate that rises in the inner diameter direction from the wall surface of the basket toward the cylinder axis and divides the basket space into a plurality of processing chambers. Since this is adopted, the liquid attached to the object to be processed can be efficiently separated.

Perspective view of an embodiment of the present invention Front view of the same embodiment (A) is a III-III sectional view of FIG. 2, (b) is an enlarged view of a main part of (a) Other embodiment is shown, (a) is a side view, (b) is a front view

Embodiments of the present invention will be described with reference to the drawings. The liquid draining device M of this embodiment is used to separate water from aggregates such as crushed stone and sand that have been treated with a water washing classifier.

As shown in FIG. 1, the liquid draining device M includes a cylindrical basket 1 having a treatment object input portion 4 at one end in the cylinder axis direction and a treatment object discharge portion 5 at the other end in the cylinder axis direction. I have it.

The basket 1 of this embodiment is provided with a cylindrical wall surface 6 over substantially the entire length in the cylinder axis direction except for a small portion near one end in the cylinder axis direction and near the other end in the cylinder axis direction.

The vicinity of the insertion portion 4 at one end of the basket 1 in the cylinder axis direction is a cone-shaped wall surface 6 that expands from one end side in the cylinder axis direction to the other end side in the cylinder axis direction. As a result, the object to be processed is easily sent out from the charging unit 4 toward the other end side in the cylinder axis direction.

The vicinity of the discharge portion 5 at the other end of the basket 1 in the cylinder axis direction is also a truncated cone-shaped wall surface 6 that expands from one end side in the cylinder axis direction to the other end side in the cylinder axis direction. As a result, the object to be processed is easily sent out toward the discharge portion 5 at the other end in the cylinder axis direction.

The wall surface 6 around the cylinder axis of the basket 1 is provided with a large number of through holes 6 a that connect the space inside the basket 1 and the space outside the basket 1. The through hole 6a is provided on the cylindrical wall surface 6 except for the vicinity of the input portion 4 and the discharge portion 5.

The basket 1 is supported by a frame 10 so as to be rotatable around its cylinder axis. A rotating roller (rotating device) 11 provided on the frame 10 is in contact with the outer surface of the cylindrical wall surface 6 of the basket 1, and the rotating roller 11 is rotated by a driving force of a motor or the like, whereby the basket 1 is rotated. Rotate around.

Further, a pair of rotating rollers (rotating devices) 12 provided on the frame 10 are in contact with both front and back surfaces of the flange portion 3 provided at one end of the basket 1 in the cylinder axis direction. The rotating roller 12 rotates (idles) with the rotation of the flange portion 3 and restrains the position of the basket 1 in the cylinder axis direction from moving. The driving force of a motor or the like may be transmitted to the rotary roller 12.

As a rotating device for rotating the basket 1 around the cylinder axis, in addition to the configuration using the rotating rollers 11 and 12 of this embodiment, for example, a well-known drive for transmitting a driving force using gears, belts, or the like. A device can be employed.

A partition plate 2 is provided in the basket 1 so as to rise from the wall surface 6 toward the cylinder axis in the inner diameter direction. The partition plate 2 divides the space of the basket 1 into a plurality of processing chambers A, B, C, D,... Along the cylinder axis direction.

In this embodiment, partition plates 2 are provided at three locations in the basket 1, and the space of the basket 1 is divided into four processing chambers A, B, C, D. The number can be appropriately increased or decreased according to the number of processing chambers to be installed.

The partition plate 2 is composed of an annular plate member that rises from the inner surface of the wall surface 6 of the basket 1 toward the inner diameter side. The inner diameter side of the partition plate 2 with respect to the inner edge of the ring is a flow hole 2a connecting adjacent processing chambers. Through the flow holes 2a, the object to be processed is transferred between the processing chambers from one end side in the cylinder axis direction of the basket 1 to the other end side in the cylinder axis direction. During this time, the basket 1 rotates around the cylinder axis at a high speed, so that the liquid (water) adhering to the object to be processed is discharged to the outside of the basket 1 through the through hole 6a of the wall surface 6.

Here, in the processing chambers A, B, C other than the terminal processing chamber D facing the discharge part 5, the objects to be treated in the processing chambers A, B, C are adjacent to the other end side in the cylinder axis direction. Of the processing chambers B, C and D.

The delivery device 20 includes a rotation shaft 21 that is inserted into the basket 1 along the cylinder axis direction, and a delivery member 22 that is connected to the rotation shaft 21 via a connection portion 21 a. The axial direction of the rotating shaft 21 is arranged to be parallel to the cylinder axis direction of the basket 1 or substantially parallel to the cylinder axis direction of the basket 1.

The delivery member 22 is provided on the rotary shaft 21 so as to project in a direction away from the axis of the rotary shaft 21. When the rotary shaft 21 rotates about its axis by the driving force of a motor or the like, the delivery member 22 rotates in each of the processing chambers A, B, and C.

The delivery member 22 is formed of a plate-shaped member, and an outer edge 22a of the plate-shaped member on the side farther from the axis of the rotary shaft 21 forms an arc shape along the inner surface of the wall portion 6 of the basket 1. The front surface of the delivery member 22 is a flat delivery surface 22b.

By rotating the delivery member 22 together with the rotating shaft 21, the object to be processed accumulated at the bottom of each of the processing chambers A, B, and C is lifted, and the lifted object is processed by the partition plate 2 It moves to another processing chamber adjacent to the other end side through the flow hole 2a on the inner diameter side. At this time, since the processing chambers are separated by the partition plate 2, water in the processing chamber on one end side in the cylinder axis direction is prevented from flowing into the processing chamber on the other end side in the cylinder axis direction.

Here, the surface direction of the delivery surface 22b is, as shown in FIG. 1, slightly inclined with respect to the direction orthogonal to the cylinder axis direction. As for the inclination direction, along the rotation direction of the rotation shaft 21, the edge on the front side in the rotation direction (downstream side in the rotation direction of the rotation shaft 21) is the edge on the rear side in the rotation direction (upstream side in the rotation direction of the rotation shaft 21). Is located on the one end side in the cylinder axis direction. Due to the inclination of the delivery surface 22b in the surface direction, the delivery surface 22b is directed to the front side in the rotational direction, and the delivery of the object to be processed is promoted.

Further, the rotation direction of the rotation shaft 21, that is, the rotation direction of the delivery member 22 is opposite to the rotation direction around the cylinder axis of the basket 1. By setting this rotation direction, the delivery of the object to be processed is further promoted. Here, in order to increase the centrifugal force for draining, it is desirable that the rotation of the basket 1 be set at a relatively high speed. On the other hand, the rotation of the rotating shaft 21 is sufficiently slower than the rotation of the basket 1.

The delivery member 22 of this embodiment is formed of a plate-shaped member, but the delivery member 22 may be formed of a block-shaped member or a set of shaft-shaped members.

Further, the basket 1 is provided with a pressing device 30 for bringing the object to be processed into close contact with the wall surface 6 in the processing chamber. The pressing device 30 can also exert a function of separating the object to be processed excessively attached to the wall surface 6 from the wall surface 6 and dropping it.

The pressing device 30 includes a rotating shaft 31a that is inserted into the basket 1 along the cylinder axis direction, and a shaft-shaped or elongated reaction force member 31b that is also inserted into the basket 1 along the cylinder axis direction. .. A scraper 32 is attached to the rotating shaft 31a. An elastic member 31c is provided between the scraper 32 and the reaction force member 31b.

The axis of the rotating shaft 31a is arranged so as to be parallel to the cylinder axis of the basket 1 or substantially parallel to the cylinder axis of the basket 1. The direction in which the reaction force member 31b extends is also parallel to the cylinder axis direction of the basket 1 or substantially parallel to the cylinder axis direction of the basket 1.

The tip end 32 a of the scraper 32 is pressed against the inner surface of the wall surface 6 of the basket 1 by the urging force of the elastic member 31 c. By this pressing, the object to be processed is brought into close contact with the wall surface 6, water is smoothly separated by the centrifugal force, and the excessive object to be processed attached to the wall surface 6 is scraped off toward the bottom of the processing chamber. The subsequent smooth processing of the object to be processed is promoted.

In this embodiment, the scrapers 32 are provided in all the processing chambers A, B, C, D, but the scrapers 32 may be installed only in some necessary processing chambers.

Another embodiment is shown in FIG. In this embodiment, the cylindrical basket 1 is shaped like a truncated cone that expands from one end in the cylinder axis direction to the other end in the cylinder axis direction. The inner surface and the outer surface of the wall surface 6 of the basket 1 are tapered so as to expand from the input portion 4 side toward the discharge portion 5 side. Since the radius of the basket 1 is small on the input section 4 side, the water attached to the object to be processed is discharged downward by its own weight, and the object to be processed moves to the discharge section 5 side appropriately.

Further, water that has flowed out of the basket 1 through the through holes 6 a of the wall surface 6 is discharged to the outside from a drainage section 7 provided below the basket 1.

Here, the entire range from one end in the cylinder axis direction to the other end in the cylinder axis direction is a truncated cone shape, but a part from the one end in the cylinder axis direction to the other end in the cylinder axis direction is a truncated cone shape. Can also

Further, in this embodiment, the partition plate 2 is provided at two locations and the processing chambers are provided at three locations A, B, and C. The same can be done.

The delivery device 20 is provided in the processing chambers A and B other than the terminal processing chamber C facing the discharge section 5. Although the installation of the pressing device 30 is omitted, the scraper 32 of the pressing device 30 may be arranged in some or all of the processing chambers as needed.

In the above-described embodiment, the basket 1 is arranged so that the cylinder axis direction thereof is horizontal, but the basket axis direction of the basket 1 is downwardly inclined from the input portion 4 side to the discharge portion 5 side. You may incline and arrange. In particular, when the basket 1 having the cylindrical wall surface 6 is used, it is possible to promote the processing and discharging of the object to be processed by making the cylinder axis have a downward slope in this way.

Further, in the above-described embodiment, the present invention has been described by taking the liquid draining device (water draining device) for separating the water attached to the object to be treated as an example, but various types of liquids other than the water attached to the object to be treated are separated. The present invention can be applied to the liquid draining device.

DESCRIPTION OF SYMBOLS 1 basket 2 partition plate 3 flange part 4 input part 5 discharge part 6 wall surface 6a through hole 7 drainage part 10 frames 11, 12 roller 20 sending device 21 rotating shaft 21a connecting part 22 sending member 22a outer edge 22b sending surface 30 pressing device 31a rotation Drive shaft 31b Reaction force member 31c Elastic member 32 Scraper A, B, C, D Processing chamber

Claims (3)

A tubular basket (1) having a treatment object input portion (4) at one end in the cylinder axis direction and a treatment object discharge portion (5) at the other end in the cylinder axis direction;
A through hole (6a) provided in a wall surface (6) around the cylinder axis of the basket (1) and connecting the space inside and outside the basket (1);
A rotating device (11, 12) for rotating the basket (1) around a cylinder axis;
A partition plate (2) rising from the wall surface of the basket (1) toward the cylinder axis in the inner diameter direction to divide the space of the basket (1) into a plurality of processing chambers;
Bei to give a,
A draining device comprising a delivery device (20) for delivering an object to be processed in the processing chamber to another processing chamber adjacent to the other end side in the cylinder axis direction . The said basket (1) of a cylinder is equipped with the said cone-shaped wall surface (6) which expands toward the other end in the cylinder axis direction from one end in the cylinder axis direction in a part or all of the cylinder axis direction. Drainer. The liquid draining device according to claim 1 or 2 , further comprising: a pressing device (30) for bringing an object to be processed into close contact with a wall surface (6) in the processing chamber.

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