JPS6115925Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a dehydration device having a dehydration basket.

FIG. 1 is a sectional view showing a conventional example of a dewatering device having a dewatering basket. 1, a hopper 3 for feeding raw materials such as pebbles into the pressure-feeding tube 1, and a dewatering basket 6 supported on the outer periphery of a rotary plate 5 supported by a rotating body 4 provided at a position facing the pressure-feeding tube 1. and a first and second liquid chute 7, 8 attached to the lower part of the pressure-feeding cylinder 1 and dewatering basket 6, respectively, and a solid chute 9 attached to surround the first liquid chute 7. It is configured.

When in use, the rotating body 4 is
is rotated to rotate the rotating plate 5 and dewatering basket 6, and at the same time, raw materials such as pebbles are introduced into the pressure-feeding tube 1 through the hopper 3 while sending air into the pressure-feeding tube 1 by a blower. Then, the moisture attached to the raw material fed into the pressure-feeding cylinder 1 is separated from the raw material by the air sent by the blower.
A portion of the liquid is discharged to the outside from a notch 2 provided in the pressure-feeding cylinder 1 through a first liquid chute 7 . Further, the remaining moisture and raw material are discharged from the discharge port 1a of the pressure-feeding cylinder 1. The raw material discharged from the pressure-feeding cylinder 1 collides with the rotary plate 5 which is rotated by the rotary body 4,
Furthermore, it collides with the dehydration basket 6, and due to centrifugal force, the dehydration basket 6
It enters the solid chute 9 while moving along the inner circumferential surface of the solid chute 9, and is discharged to the outside from the lower part of the solid chute 9. In addition, the moisture remaining on the surface of the raw material is separated from the raw material when it collides with the rotary plate 5 and the dehydration basket 6, and is transferred to the dehydration basket 6 together with the moisture released from the pressure-feeding cylinder 1.
The liquid flows through the second liquid chute 8 and is discharged to the outside via the second liquid chute 8.

However, if the dehydration device is configured as described above,
The raw material discharged from the pressure-feeding cylinder 1 collides with the rotary plate 5 and then bounces back to collide with the dewatering basket 6, so that the dehydrating basket 6 is subjected to a severe impact. If the dehydration basket 6 is constantly subjected to severe impacts in this way, the dehydration basket 6 will be severely worn down, and the corner portion 6a of the dehydration basket 6 will be particularly damaged, causing raw material to jump into the liquid chute 8 from this portion. There were some shortcomings.

In addition, as shown in FIG.
There is also a structure in which a reinforcing plate 10 is placed at the top, but in this case as well, the dewatering basket 6 cannot have sufficient strength and the dehydrating basket 6 is damaged.

In view of the above-mentioned conventional drawbacks, the present invention arranges a baffle plate at a position facing the rotary plate on the outer periphery of the tip of the pressure-feeding cylinder, and prevents the raw material discharged from the pressure-feeding cylinder from bouncing between the rotary plate and the baffle plate. The purpose of the present invention is to provide a dewatering device which weakens the impact force applied to the dewatering basket and prevents the dehydrating basket from being damaged by guiding the dewatering basket to the dehydrating basket. The details are as follows.

FIG. 2 is a cross-sectional view showing the dewatering device according to the present invention. In the figure, 20 is a casing of the dehydrating device, and 21 is a pressure tube inserted horizontally into the casing 20 from the side. A blower (not shown) is connected to one end of the holder, and notches 22 are provided at several locations on the lower surface. Note that if the type of raw material releases little moisture during movement, it is not necessary to provide a notch in the pressure-feeding tube. 23 is a hopper placed at the rear of the pressure-feeding tube 21, and 24 is the pressure-feeding tube 2.
This is a baffle plate that faces a rotating plate 25, which will be described later, and which is disposed at the front end of the rotary plate 1 and at a position located inside a dehydration basket 27, which will be described later.
It has a larger diameter. A gap is provided between the inner surface of the dehydration basket 27 and the peripheral edge of the baffle plate 24 through which the raw material can pass. The rotating plate 25 is connected to the pressure feeding cylinder 21.
It is a plate-shaped plate having a side wall 25a on the outer periphery, which is disposed at a position facing the baffle plate 24 attached to the outer periphery of the tip of the rotary plate 25, and the rotating plate 25 is rotated by a rotating body 26 disposed behind it. It is structured like this. Note that the surface of the rotating plate 25 facing the reflecting plate 24 may have a flat plate shape instead of being conical as shown. Further, the side wall 25a may not be provided. 2
Reference numeral 7 designates a dehydration basket through which only moisture and sludge supported by the rotary body 26 can pass, and the dehydration basket 27 has a shape that covers the outer periphery of the rotary plate 25 and the baffle plate 24. 29 is a first liquid chute disposed below the pressure-feeding cylinder 21; 30 is a second liquid chute disposed below the dehydration basket 27;
1 is a solid chute arranged so as to surround the first liquid chute 29, and 32 is a reinforcing plate fixed to a corner of the dehydration basket 27.

In the above configuration, in order to dehydrate the raw material using the dehydrating apparatus according to the present invention, the rotating body 26 is rotated by any means, and the rotating plate 25 and the dehydrating basket 27 are rotated. ] while sending air into the pressure-feeding cylinder 21, the hopper 23
Raw materials such as pebbles are introduced into the pressure-feeding cylinder 21 through the cylinder. Then, the moisture adhering to the raw material fed into the pressure-feeding tube 21 is separated from the raw material by the air sent by the blower, and a part of it is transferred to the pressure-feeding tube 2.
1 from the notch 22 provided in the first liquid chute 2
9 and is discharged to the outside. In addition, the remaining moisture is released from the front opening end 21a of the pressure-feeding cylinder 21 together with the raw material, and the remaining water is released from the rotary plate 2 rotated by the rotary body 26.
Collision with 5. The raw material that collided with the rotary plate 25 bounces back and collides with the baffle plate 24 disposed at a position facing the rotary plate 25. After that, the raw material collides with the rotary plate 25 and the baffle plate 25 repeatedly, and the rotary plate 25 from the space 33 formed between the rotating plate 25 and the baffle plate 24 to the dewatering basket 27 located on the outer periphery of the rotary plate 25 and the baffle plate 24. Then, by centrifugal force, the dehydration basket 2
7 toward the solid chute 31, enters the solid chute 31 from the open end of the dehydration basket 27, passes through the solid chute 31, and is discharged to the outside. In addition, when the raw material is discharged from the pressure-feeding cylinder 21, the moisture attached to the raw material is removed by the rotary plate 25 and the baffle plate 2.
The space 3 is separated from the raw material during repeated collisions with the rotating plate 25 and the baffle plate 24.
3, passes through the dehydration basket 27 having a fine gap, flows into the second liquid chute 30, and is discharged to the outside through the second liquid chute 30.

Also, it is separated from the raw material in the pressure-feeding tube 21, and the pressure-feeding tube 21
The water discharged from the rotating plate 25 and the baffle plate 24
The liquid passes through the dehydration basket 27 from the space 33 formed between the liquid and the liquid, and is discharged to the outside through the second liquid chute 30.

In this way, the baffle plate 24 facing the rotating plate 25 is arranged at the tip of the pressure-feeding tube 21, and the pressure-feeding tube 21
By colliding the raw material discharged from the rotating plate 25 and the baffle plate 24 before guiding it to the dehydration basket 27, when the raw material collides with the inner peripheral surface of the dehydration basket 27, the force will be weakened. Therefore, it is possible to prevent the dehydration basket 27 from being damaged due to collision with the raw material.

FIG. 3 shows an embodiment in which a predetermined number of weirs 34 are provided on the inner circumferential surface of the dehydration basket 27 in the direction of the rotation axis to reduce the friction generated between the inner circumferential surface of the dehydration basket 27 and the raw material. It is. That is, when the raw material moves inside the dehydration basket 27, the dehydration basket 27 is rotating at high speed, so the raw material moving on the inner peripheral surface of the dehydration basket 27 cannot keep up with the rotation of the dehydration basket 27, and the dehydration basket 2
7, it moves toward the opening 27a while spirally moving on the inner circumferential surface of the dehydration basket 27. Therefore, when there is no weir 34 on the inner peripheral surface of the dehydration basket 27, friction occurs due to the speed difference between the two, and the dehydration basket 2
There was a drawback that 7 was worn out. However, if the weir 34 is provided in the direction of the rotational axis on the inner circumferential surface of the dehydration basket 27 as in this embodiment, a part of the raw material moving spirally inside the dehydration basket 27 will be blocked by the weir 34, and the dehydration basket 27 will be A layer of raw material is formed on the inner circumferential surface of 27. This raw material layer acts as a protective film, and prevents the inner circumferential surface of the dehydrating basket 27 from being worn out when the raw material moves on the inner circumferential surface of the dehydrating basket 27.

At this time, since there is a sufficient gap in the layer of raw material formed on the inner peripheral surface of the dehydration basket 27, the water separated from the raw material passes through the dehydration basket 27 and enters the second liquid chute 30. There is no obstruction to the influx.

Further, when dewatering is performed using a dewatering device, if a large amount of mud or the like is attached to the raw material, a cleaning water injection nozzle 35 is placed at a predetermined position on the inner periphery of the dewatering basket 27, as shown in FIG. Alternatively, the mud adhering to the raw material may be washed away with the washing water spouted from the washing water injection nozzle 35.

As explained above, the dewatering device according to the present invention is provided with a baffle plate at the tip of the pressure-feeding tube and at a portion located inside the dehydration basket, facing the rotating plate, and interfering with the inner surface of the dehydration basket. A gap is formed between the plate and the periphery of the plate, and the raw material discharged from the pressure cylinder repeatedly collides between the rotating body and the baffle plate, and then is guided to the dewatering basket located on the outer periphery of the rotary plate and the baffle plate. This prevents raw materials from violently colliding with the dehydration basket, thereby preventing the dehydration basket from being damaged.

[Brief explanation of the drawing]

Figure 1 is a sectional view showing a conventional example of a dewatering device;
The figure is a sectional view showing a dewatering device according to the present invention, FIG. 3 is an enlarged sectional view of main parts showing a second embodiment of the dehydrating device according to the present invention, and FIG. 4 is a third embodiment of the dehydrating device according to the present invention. It is a sectional view showing an example. 21...Pressure cylinder, 23...Hopper, 24...
Baffle plate, 25... Rotating plate, 26... Rotating body, 27
...Dehydration basket.

Claims (1)

[Scope of utility model registration request] The water-containing granules introduced into the pressure-feeding tube are ejected from the outlet at the other end by an air flow introduced from the air outlet at one end of the pressure-feeding tube, and the granules are placed at a position opposite to the outlet of the pressure-feeding tube. A dewatering device that separates solid and liquid through a dewatering basket that is arranged around the rotary plate, rotates together with the rotary plate, and expands in a shape of a bulge toward the pressure-feeding cylinder side. In this step, a baffle plate is provided at the tip of the pressure-feeding cylinder and at a portion located within the dehydration basket so as to face the rotary plate, and a space is formed between the inner surface of the dehydration basket and the peripheral edge of the baffle plate. A dehydration device characterized by: