JPH034368Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Field of the invention This invention dehydrates water such as cooling water that adheres to objects to be treated such as resin pellets as particulates, and removes dirt containing water and oil. The present invention relates to a dehydrator used for dehydrating and deoiling air.

(b) Background of the invention As a device for dehydrating the resin pellets mentioned above,
For example, there is a dehydrating and drying device disclosed in Japanese Utility Model Publication No. 59-36249, in which a spiral passage formed in a cylindrical filter is supplied with a transfer air flow into the passage to swirl the resin pellets. Centrifugal force from the rotation separates water from the resin pellets.

However, if an attempt is made to increase the dehydration capacity by increasing the speed of the airflow flowing through the spiral passage described above, the water separated from the resin pellets will be transported in the same direction as the resin pellets on the high-speed airflow. Therefore, although water is separated from the resin pellets, it adheres to the resin pellets again and is not dehydrated.

In addition, if the transfer airflow is made to flow at a low speed to prevent the above-mentioned moisture from being transferred, sufficient centrifugal force will not act on the resin pellets, resulting in insufficient separation of moisture and a decrease in dewatering ability. .

As a result, there is a natural limit to improving the dewatering capacity by adjusting the flow rate of the transfer air flow.

(c) Purpose of the invention This invention creates a group of vanes inside the spiral passageway that transports the objects to be processed, such as resin pellets and dirty air, toward the outer circumference of the path, thereby effectively moving the objects to be processed using centrifugal force. The water is transferred to the high-speed transfer airflow side on the outer circumferential side that acts on the water, and provides sufficient centrifugal force for dehydration.
It is an object of the present invention to provide a dehydrator that can reliably dewater a workpiece by colliding the workpiece with a group of blades and the inner circumferential surface of a cylindrical filter using the impact vibrations generated at the time of the collision.

(d) Structure of the device In this device, a cylindrical filter that connects the supply port and the discharge port is installed inside a casing that has a supply port and a discharge port at the upper and lower portions, and a cylindrical filter is installed inside the cylindrical filter. A spiral passage is formed along the inner circumferential surface of the cylindrical filter through which the transfer airflow flows, and a group of vanes is provided inside the spiral passage to transfer the material to be processed, which is supplied into the spiral passage, in the direction of the outer circumference of the passage. It is characterized by being a formed dehydrator.

(e) Function of the invention This invention supplies the material to be treated into the casing together with the transfer airflow from the blower through the supply port, causes the material to flow while swirling through the spiral passage in the cylindrical filter, and The material to be processed collides with the group of blades formed inside the container to transport the material toward the outer periphery of the passageway, causing it to flow along with the high-speed transfer air current flowing around the outer periphery of the passageway, thereby applying sufficient centrifugal force for dewatering. At the same time, by colliding the object to be treated with the inner peripheral surface of the blade group and the cylindrical filter, water is separated from the object by the impact vibration generated at the time of these collisions, and the object to be treated after being dehydrated and oiled is Discharge from the outlet of the casing.

(f) Effects of the invention According to this invention, it is possible to forcibly transfer the material to be processed, separated water or oil, etc. to the outer periphery of the passage where centrifugal force effectively acts. By causing the material to flow along with the transfer air current, sufficient centrifugal force is applied to dehydrate or deoil the material to be processed. Water and oil can be reliably separated from the processed material for dehydration and oil removal, and it is possible to perform dehydration and oil removal processing that exceeds the conventional dehydration limit by adjusting the air flow rate.

In addition, the above-mentioned group of blades can stir the material flowing through the spiral path, so that it can be evenly dehydrated and deoiled. Since deoiling is performed, efficient dehydration and deoiling can be performed by continuously supplying a fixed amount of the material to be treated.

(g) Example of the invention An example of the invention will be described below in detail based on the drawings.

The drawing shows a dehydrator for dehydrating resin pellets, for example, as a dehydrating device for granular materials. 1st
2, the dehydrator 1 has a cylindrical casing 2 with both upper and lower ends sealed, and a supply port 2a for supplying resin pellets 3 into the casing 2 on the lower side of the casing 2. A discharge port 2b for discharging the resin pellets 3 is opened on the upper side surface, and a cylindrical filter 4 is installed inside the casing 2. A cylindrical body 5 is fixed at the center, and a spiral passage 6 is formed between the outer circumferential surface of the cylindrical body 5 and the inner circumferential surface of the cylindrical filter 4 by connecting the supply port 2a and the discharge port 2b. A group of vanes 7 are formed on the outer circumferential surface of the cylindrical body 5 in the spiral passage 6 to transport the flowing resin pellets 3 in the direction of the outer circumference of the passage.

As shown in FIG. 1, the above-mentioned casing 2 has a water collection gutter 8 formed on the inner peripheral surface at a position slightly higher than the supply port 2a, and a drainage channel 9 on the side surface communicating with the water collection gutter 8. The drainage channel 9 has an end hanging down into the water storage tank 10.

A supply pipe 11 for supplying the resin pellets 3 into the casing 2 is connected to the above-mentioned supply port 2a.
A hopper 12 is fixed, and the hopper 12 supplies a fixed amount of the resin pellets 3 into the supply pipe 11 from a lower flow port 12a.

On the other hand, a nozzle 13 is connected to the end face of the supply pipe 11, and this nozzle 13 supplies a transfer airflow blown from an air blower 14 into the supply pipe 11.

As shown in FIG. 2, the above-mentioned cylindrical filter 4 is constructed by bending a wire mesh into a cylindrical shape and connecting both ends thereof. The upper and lower openings are fixed to the inner circumferential edge of a partition plate 15 formed on the inner circumferential surface of the lower part, thereby communicating the lower supply port 2a and the upper discharge port 2b.

The aforementioned spiral passage 6 is formed by forming a spiral plate 16 in a spiral shape on the outer peripheral surface of the aforementioned cylindrical body 5 to form a space between the outer peripheral surface of the cylindrical body 5 and the inner peripheral surface of the cylindrical filter 4 in a spiral shape. The lower end opening of this spiral passage 6 is connected to the supply port 2a, and the upper end opening is connected to the discharge port 2a.
It is connected to b.

Note that the above-described spiral plate 1 is disposed between the outer circumferential surface of the cylindrical filter 4 and the inner circumferential surface of the casing 2.
A partition plate 15 is formed in a spiral shape at a peripheral surface position corresponding to 6, and a plurality of water holes 15a are opened in the outer peripheral part of this partition plate 15.

As shown in FIG. 2, the aforementioned blade group 7 includes a large number of blade bodies 7a on the outer peripheral surface of the cylindrical body 5 in the spiral passage 6.
... are provided protrudingly at predetermined intervals, and each of the blade bodies 7a... has its base end fixed to the outer peripheral surface of the cylindrical body 5, and has a concave surface facing the transfer airflow.
In addition, the tip portions of each blade body 7a are provided so as to be inclined radially in the direction of air flow.

The dehydrator 1 configured as described above produces resin pellets 3.
When performing dehydration processing, as shown in FIG. 1, the resin pellets 3 put into the hopper 12 are fed into the supply pipe 11 in a fixed amount, and at the same time, the blower 14 is started to supply a transfer airflow from the nozzle 13. Then, the resin pellets 3 are supplied into the casing 2 through the supply port 2a by the transfer action of this transfer air flow.

The resin pellets 3 supplied into the casing 2 rise while swirling in the spiral passage 6 in the casing 2, and the resin pellets 3 are caused by the blade group 7 formed in the spiral passage 6 to move against the concave surface of each blade body 7a. Since the resin pellets 3 are transferred toward the outer circumference of the passage along the transfer passage 6 and flow along with the high-speed transfer air current flowing through the transfer passage 6, sufficient centrifugal force is applied to the resin pellets 3 to separate moisture, and at the same time, the resin pellets 3 is made to flow while colliding with the inner peripheral surface of the cylindrical filter 4, so that water can be actively separated from the resin pellets 3 by the cylindrical filter 4. After this, the dehydrated resin pellets 3 are sent to the discharge port at the top of the casing 2. Discharge from 2b.

On the other hand, the separated moisture passes through the cylindrical filter 4 and flows down along the inner peripheral surface of the casing 2.
Then, the water is collected in the lower water collection gutter 8 through the water inlets 15a of the partition plate 15, and then discharged from the discharge channel 9 and stored in the water storage tank 10. .

The resin pellets 3 flowing in this way are transferred to the blade group 7.
Since the resin pellets 3 are transported toward the outer circumferential direction of the passage, even though the resin pellets 3 are flowed by the high-speed transport airflow, the resin pellets 3
A centrifugal force sufficient to dehydrate the resin pellets 3 is applied, and at the same time, the resin pellets 3 collide with the inner peripheral surface of the cylindrical filter 4, so that water can be actively separated from the resin pellets 3.

At the same time, the resin pellets 3 can be stirred by the blade group 7 to be evenly dehydrated. Moreover, since the resin pellets 3 are dehydrated while being rotated, efficient dehydration can be achieved by continuously supplying the resin pellets 3 in a constant quantity.

As shown in FIG. 3, a cylindrical body 5 is fixed to the center of a cylindrical filter 4 housed in a casing 2, and on the back side of a spiral plate 16 formed on this cylindrical body 5, a large number of blade plates 7b... In addition to forming alternating large and small
By slanting the outer peripheral edge of each blade plate 7b in the direction of airflow, the resin pellets 3 transferred by the transfer airflow are transferred toward the outer circumference of the passage along the slope of each blade plate 7b. Since the water is transported along with the high-speed transport air current around the outer periphery of the passage, sufficient centrifugal force for dehydration can be obtained, and the same effects as in the above-mentioned embodiments can be obtained.

Incidentally, the blade group 7 may be constructed by using the blade bodies 7a of the above embodiments and the blade plates 7b of the above embodiments in combination, and this invention is not limited to the structure of the embodiments only. do not have.

The device of this invention can also be used to dehydrate dirty air containing moisture and oil discharged from factories, zones generated from dryers such as clothes washed in dry cleaning machines, and air containing moisture. In this case, the hopper 12 may be connected to the inlet of the blower and the inlet for the air to be treated.

The air to be treated introduced into the casing 2 of the dehydrator is dehydrated and deoiled by the cylindrical filter 4 due to centrifugal force, as in the case of the granular material described above, and the clean air is discharged outside the machine from the outlet 2b. Ru.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention, with Fig. 1 being a vertical sectional side view of the dehydrator, and Fig. 2 being a cross sectional view of the dehydrator.
FIG. 3 is a vertical sectional side view of a main part of a dehydrator showing another example. 1... Dehydrator, 2... Casing, 2a... Supply port, 2b... Discharge port, 3... Resin pellet, 4
...Tubular filter, 6...Spiral passage, 7...Blade group, 7a...Blade body, 7b...Blade plate.

Claims (1)

[Scope of Claim for Utility Model Registration] A cylindrical filter connecting the supply port and the discharge port is installed inside a casing having a supply port and a discharge port in the upper and lower parts, and the cylindrical filter is provided inside the cylindrical filter. A spiral passage is formed along the inner circumferential surface of the filter through which the transfer airflow flows, and a group of vanes is formed inside the spiral passage to transfer the material to be processed, which is supplied into the spiral passage, toward the outer circumference of the passage. Dehydrator.