JPH08967Y2 - Dehydrator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a dehydration treatment device for dehydrating resin pieces such as resin pellets and resin sheets after washing.

(B) Conventional Technology Conventionally, as a dehydration processing apparatus such as the above-described example, a large number of blades are provided along the spiral direction on the circumferential surface of a cylindrical dehydration rotor, and the dehydration rotor is rotated to rotate it. There has been a structure in which an article to be dehydrated put in a lower portion of a rotor is made to collide with the above-mentioned vane plates to be dehydrated, and the dehydrated article to be dehydrated is transferred to an upper portion and discharged.

However, in the case of such a dehydration treatment apparatus, there is a problem that the dehydration treatment cannot be performed sufficiently.

That is, during operation of the device, fine mist-like water droplets generated by the rotation of the dehydration rotor and water that flows in when the material to be dehydrated is deposited adhere to the peripheral surface of the dehydration rotor, and these water are accompanied by the rotation of the dehydration rotor. Thus, the peripheral surface of the dewatering rotor is transmitted along the arranging direction of the vane plate, in other words, water is made to flow in the same direction as the transport direction of the dehydrated substance, and the dehydrated substance and water are discharged together.

Therefore, the present applicant has proposed a dewatering apparatus that forms a draining plate projecting outward of the dewatering rotor along the axial direction of the dewatering rotor between blade plates arranged on the peripheral surface of the dewatering rotor. developed.

In this dewatering device, the water drops that hit the peripheral surface of the dewatering rotor are received by the water draining plate, the centrifugal force of the dewatering rotor is used to guide the water drops to the tip of the water draining plate, and the water drops that have no place to go are shaken off there. .

(C) Problems to be solved by the invention However, even in the case of the developed dehydration treatment apparatus,
Move to the discharge side along the base of the draining plate,
There was a drop of water that was discharged with the material to be dehydrated.

Therefore, in consideration of the above-described phenomenon, the present invention provides a dehydration treatment apparatus that blocks the movement of water along the peripheral surface of the dehydration rotor in the discharge direction of the substance to be dehydrated, and can perform a complete dehydration treatment. With the goal.

(D) Means for Solving the Problems This invention is intended to remove water to be dehydrated introduced into one end of a rotating dewatering rotor while transferring it with a large number of vanes provided on the circumferential surface of the dewatering rotor. In the dehydration processing device for discharging to the end side, a drainer plate protruding outward of the peripheral surface of the dehydration rotor is provided between the blade plates, and a path of water droplets that circulates the peripheral surface by rotation of the dehydration rotor is the object to be dehydrated. It is characterized in that it is a dehydration treatment device formed so as to be inclined at an angle that prevents it from being directed to the discharge side.

(E) Action The dewatering apparatus of the present invention removes the centrifugal force of the dewatering rotor from the water droplets that move along the outer peripheral surface of the dewatering rotor as it rotates and the water that adheres to the dewatering rotor when the material to be dewatered is introduced. The water drop that is received is shaken off from the end surface of the draining plate, while the water droplets that cannot receive the centrifugal force and cannot crawl onto the end surface of the draining plate move to the discharge side of the dehydrated product depending on the installation angle of the draining plate. It is able to crawl up to the edge of the draining plate under the action of centrifugal force by blocking the water and increasing the amount together with the subsequent water, and is eliminated from the edge surface of the draining plate as described above. It

(F) Advantageous Effect of the Invention As described above, according to the present invention, the dewatering rotor is tilted at an angle that prevents the path of water droplets passing through the dewatering rotor from facing the discharge side of the substance to be dehydrated. Since the water draining plate is provided, the water that tries to move to the discharge side of the substance to be dehydrated along the peripheral surface of the dewatering rotor is blocked, and the blocked water drops are integrated with the following water. By increasing the amount, it can crawl onto the draining plate and be discharged to the outside by the centrifugal force of the draining plate.
As a result, the movement of extra water droplets can be completely prevented, water can be efficiently removed by the action of the draining plate utilizing centrifugal force, and more complete dehydration processing can be performed.

(G) Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

The drawing shows a dehydration treatment apparatus for dehydrating dehydrated substances such as resin pellets. In FIG. 1, the dehydration treatment apparatus 1 is a cylindrical dehydration rotor 3 rotating in a casing 2 and arranged on the outer periphery of the dehydration rotor 3. A mesh screen 4
From the lower part of the screen 4 to the outside of the dehydrating rotor 3, there is an inlet 5 for introducing the substance to be dehydrated after cleaning, and in the upper part of the casing 2, a cyclone for separating the dehydrated substance to be dehydrated from air. It is composed of a separator 6 and a drain port 7 formed in the lower part of the casing 2.

The dehydrating rotor 3 described above has a large number of blade plates 8 on its outer peripheral surface.
Are fixed by welding so that the substance to be dehydrated introduced from the lower portion of the dehydration rotor 3 is transferred upward. That is, each blade 8 ...
Moreover, the blades 8 are mounted vertically and horizontally with a gap between them.

Then, band-shaped draining plates 9, 9 protruding outward of the dehydrating rotor 3 are welded and fixed at appropriate places between the blade plates 8 arranged in this way. In this mounting, one of the blade plates 8 ... Attached along the spiral direction is assumed to be virtual, and the blade plate 8 that is diagonal to the virtual blade plate 8a.
Between b and 8b, inclined in a direction opposite to the spiral direction, that is, at an angle that prevents the path of water droplets that circulate the circumferential surface of the dehydration rotor 3 from heading in the transfer direction above the dehydration rotor 3,
I am doing it.

In addition, the cyclone separator 6 above the dewatering rotor 3
Ejection blades 10 ... Are formed at positions corresponding to and blow air toward the cyclone separator 6.

Then, the lower end of the support shaft 11 passes through the central portion of the bottom plate of the casing 2 and is pivotally attached to the base 12, the upper end is pivotally attached to the center of the top plate 13, and the outer periphery is close to the inner peripheral surface of the screen 4. The motor 14 is configured to rotate via a belt 15 and pulleys 16 and 17.

The aforementioned screen cleaner 4 is attached to cylindrical flanges 18 and 19 provided at an upper portion and a lower portion inside the casing 2 at a proper distance from the inner wall surface of the casing 2, whereby the above-mentioned charging port 5 is provided. To Cyclone Separator 6 was contacted.

The cyclone separator 6 described above introduces the substance to be dehydrated, which is discharged together with the air, into the outer cylindrical portion for swirling, and while swirling there, the air is discharged from the central cylindrical portion to the outside to remove the substance to be dehydrated. It is configured to be discharged from the lower end of the tubular portion.

The drainage port 7 is formed between the flange 19 at the lower part of the screen 4 and the casing 2 and is led out from the drainage channel 20 through which the water after the dehydration process flows.

Assuming that the illustrated embodiment is formed as described above, the operation will be described below.

When the dewatering rotor 3 is rotated for the dewatering process, the dewatering rotor 3 is thrown in through the lower inlet, and the dewatered matter accompanied by water collides with the vane plates 8 on the outer peripheral surface of the dewatering rotor 3 to remove the water from the dewatered matter. Drop it. At this time, atomized fine water droplets float between the outer periphery of the dewatering rotor 3 and the screen 4, and as the dewatering rotor 3 further rotates, these water droplets try to rise along the circumferential surface of the dewatering rotor 3. . Further, the water attached to the peripheral surface of the dehydrating rotor 3 when the material to be dehydrated is supplied also tries to rise along the peripheral surface of the dehydrating rotor 3 by the rotation of the dehydrating rotor 3.

However, as shown in FIG. 2, draining plates 9 and 9 are attached to the outer peripheral surface of the dehydrating rotor 3 so as to be inclined at an angle that prevents the path of water droplets passing through the peripheral surface from being directed upward of the dehydrating rotor 3. The above-mentioned water that rises by catching the outer peripheral surface of the dehydration rotor 3 is captured, guided outward by centrifugal force due to rotation, and shaken off at the end face portions of the draining plates 9 to be removed. Further, among the water droplets that rise along the peripheral surface of the dehydration rotor 3, even water droplets that cannot receive the centrifugal force and cannot crawl onto the end surface portion of the water draining plate 3 may be moved upward depending on the installation angle of the water draining plates 9 and 9. Is blocked from moving to and increases with the amount of water that follows,
It can climb up to the end face of the draining plate 9 under the action of centrifugal force and is removed from the end face of the draining plate 9.

As described above, since the water that can be mixed with the dehydrated product to be dehydrated can be removed by raising the peripheral surface of the dehydrating rotor 3, it is possible to separate the excess water from the dehydrated product, so that a good dehydration process can be performed. .

Further, since the centrifugal force generated during the dehydration process is used to remove the excess water, a simple configuration in which only the draining plates 9 and 9 are attached is sufficient, which is economical.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment.

For example, in the previous embodiment, a part of the blades 8 arranged so as to draw a spiral is assumed to be a virtual one, and the longer draining plates 9 and 9 are attached, but between the blades 8 ... A drainer plate having a length that can be attached may be attached.

Also, the angles of the draining plates 9 and 9 may be fixed by bolts so that the angles can be adjusted appropriately.

[Brief description of drawings]

 The drawings show one embodiment of the present invention, FIG. 1 is a cross-sectional view showing a dehydration treatment apparatus, and FIG. 2 is a perspective view showing an operating state. 1 ... Dehydration treatment device, 3 ... Dehydration rotor 8 ... Blade plate, 9 ... Drain plate

Claims (1)

[Scope of utility model registration request] 1. A dehydration treatment apparatus for dehydrating an object to be dehydrated introduced into one end side of a rotating dewatering rotor while transporting it with a large number of vane plates provided on a peripheral surface of the dewatering rotor and discharging it to the other end side. A draining plate protruding outward from the peripheral surface of the dewatering rotor between the vane plates, and an angle that prevents the path of water droplets that circulate the peripheral surface of the dewatering rotor from turning toward the discharge side of the substance to be dehydrated. A dehydration treatment device that is formed with an inclination.