JPS646921Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a centrifugal dehydrator for separating liquid from solid matter using centrifugal force.

(Prior Art) In a conventional centrifugal dehydrator, a rotating device is formed of a wire mesh. This rotator made of wire mesh has the advantage that a high dehydration effect can be obtained because the entire rotor serves as a filtration hole, but on the other hand, since it is made of wire mesh, it is easily damaged, and as a result, it wears out in a short period of time and has a service lifespan. There was a problem that the period was short, which was disadvantageous in terms of the time and cost required for replacement.

The present invention was devised to solve these conventional problems, and its purpose is to:
It is an object of the present invention to provide a centrifugal dewatering machine in which a rotator is formed by a panel, and the durability of the rotator is improved and a desired dewatering effect can be obtained.

(Structure of the invention) That is, as a technical means to achieve this object, the present invention uses a panel that is formed into an inverted conical shape with an open top and a bottom, and that applies centrifugal force to the processed material put inside. A rotator that rotates at a rotation speed that allows the water to be released from the upper end to the outside; a large number of filtration holes arranged in a row on the same radius of the rotator; A centrifugal dewatering machine comprising: a receiving ring formed in an annular shape; and an annular receiving part provided on the upper edge of a rotator, the tip of which extends into the interior of the rotator; The edge is fixed in a state that closes the space between the receiving ring and the rotator, and the lower edge of the receiving ring is open between the rotor and the lower edge has an inwardly projecting edge. We decided to adopt

(Embodiment) Hereinafter, a centrifugal dehydrator A according to an embodiment of the present invention will be explained with reference to FIGS. 1 and 2.

In the figure, reference numeral 1 denotes a processing chamber, which is divided by an internal cylinder 2 into a solid matter discharge space 3 and a moisture discharge space 4.

Reference numeral 5 denotes a rotator, which is fixed to the upper end of the rotary shaft 6 and is disposed within the moisture discharge space 4 .

The rotator 5 is formed in the shape of a bottomed inverted cone with an open top surface formed by a panel, and rotates so that the processed material placed inside can be discharged outward from the upper end by centrifugal force. It is designed to rotate in numbers. Further, in the rotator 5, filter hole rows 8, 8, 8, in which a large number of filter holes 7, 7... are arranged in a row on the same radius, are formed at the lower end, middle portion, and upper end, and each of the filter holes 7, 7, . Receptacle rings 9, 9, 9 are attached to the outer circumferential surface of the rotator 5, facing the filter hole rows 8, 8, 8, respectively. The upper end 10 of each receiving ring 9 is fixed to the outer circumferential surface of the rotator 5 in a state that closes the gap with the rotator 5, and the lower edge thereof is open between the rotator 5 and the inner side. A protruding edge 11 is formed toward.

Further, the top edge of the rotator 5 is attached to the upper edge of the rotator 5.
An annular receiving portion is formed that extends into the interior of the housing. In this embodiment, an annular flange plate 12 is attached to the upper edge of the rotator 5, and the inner edge of the flange plate 12 is slightly extended into the interior of the rotator 5 to form a receiving portion. The outer edge of the flange plate 12 extends beyond the upper edge of the inner cylinder 2 into the solid matter discharge space 3, and the inner edge of the flange plate 12 extends beyond the upper edge of the inner cylinder 2.
It is wrapped around the edges.

Incidentally, 14 is a chute for introducing the material to be processed, and the lower end port 15 is arranged so as to face the bottom of the rotator 5.

Therefore, when the centrifugal dehydrator A of the present embodiment is used to dehydrate the processed material, for example, hydrated sand, when hydrated sand is introduced from the input chute 14, the hydrated sand that has fallen to the bottom of the rotator 5 is removed from the rotator. The inner circumferential surface of the rotator 5 is continuously moved upward by the centrifugal force accompanying the high speed rotation of the rotator 5.

At this time, initially, a filter sand layer 20 is formed on the inner peripheral surface of the rotator 5 with a width T extending from the inner edge of the flange plate 12 provided on the upper edge of the rotator 5, and at the same time, each of the above-mentioned Water-containing sand is shaken out from each filter hole 7 of the filter hole row 8, and is held in a stable state at an angle of repose while being subjected to pressure due to centrifugal force in the receiving ring 9, and continues integrally with the filter sand layer 20. A sand pool 21 will be formed.

After the filter sand layer 20 is formed as described above, the water-containing sand moves upward along the upper surface of the filter sand layer 20 (arrow M), and during the movement, each filter in each filter hole row 8 Water is removed from the holes 7, and the dehydrated sand is shaken out from the upper edge of the rotator 5 into the solid matter discharge space 3, and after passing through the filter sand layer 20, the water continues to flow through the filter holes 7 into the sand pool. 21, and the angle of repose of water is gentler than the angle of repose of sand, and the specific gravity of water (1.0) is smaller than the specific gravity of sand (2.6). Only the water overflows (arrow N) and is discharged into the water discharge space 4.

In addition, if the sand pool 21 solidifies after a certain period of time and the filtration ability decreases, the injection nozzle 2
Pressure water is injected from 2 to break up the sand pool 21 and form a new sand pool.

Although one embodiment of the present invention has been described above with reference to the drawings, the specific configuration of the present invention is not limited to the above-described embodiment.

For example, in the example, there were three filtration hole rows, but
The number, shape, size, etc. of the filtration holes in each row may be determined as appropriate depending on the type of material to be treated, the magnitude of centrifugal force, etc., without being limited to this.

(Effects of the invention) As explained above, according to the invention, since the rotator is formed of a panel, the service life can be greatly improved compared to the conventional one made of wire mesh. By providing the filter holes and the receiving ring, the desired dehydration effect can be obtained while using the filter.

In addition, in the centrifugal dehydrator of the present invention, the rotator is formed into an inverted conical shape with an open top and a bottom, so dehydration can be performed simply by placing the dehydrator into the rotator, and water-containing sand can be dehydrated. can be performed continuously.

In addition, in the centrifugal dehydrator of the present invention, the rotator is configured to rotate at a speed that allows the processed material put inside to be released from the upper end by centrifugal force, improving the dehydration effect. can be done.

In addition, in the centrifugal dehydrator of the present invention, an inwardly directed protrusion is formed on the lower edge of the receiving ring.
The water-containing sand shaken out from the filter hole is supported by this ridge, and a sand pool is formed within the receiving ring, thereby preventing sand from being shaken out from the filter hole, and only water can be removed.

In addition, in the centrifugal dehydrator of the present invention, an annular receiving part with the tip extending into the inside of the rotor is formed on the upper edge of the rotator, so that the width of the receiving part is on the inner peripheral surface of the rotor. A filter sand layer can be formed. Therefore, the present invention has the effect of preventing wear of the inner circumferential surface due to movement of the processed material and improving durability.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a centrifugal dehydrator according to an embodiment of the present invention, and FIG. 2 is a partially enlarged sectional view of the centrifugal dehydrator. A: Centrifugal dehydrator, 5: Rotator, 7: Filtration hole,
8: Filter hole row, 9: Receiving ring.

Claims (1)

[Claims for Utility Model Registration] The panel is formed into an inverted conical shape with an open top and a bottom, and rotates at a rotation speed that allows the processed material placed inside to be discharged outward from the top end using centrifugal force. a rotator; a large number of filtration holes arranged in rows on the same radius of the rotor; a receiving ring formed in an annular shape on the outer circumferential surface of the rotor facing the filter holes; an upper edge of the rotor; a centrifugal dehydrator, comprising: an annular receiving part with a tip extending into the inside of the rotator; the upper edge of the receiving ring is fixed to close the space between it and the rotator; The centrifugal dehydrator is characterized in that the lower edge of the receiving ring is open between the receiving ring and the rotator, and that the lower edge has an inwardly projecting edge.