JPS5855961Y2 - Centrifugal dehydration equipment - Google Patents

Description

[Detailed description of the invention] This invention relates to a centrifugal dehydration device that continuously centrifugally dehydrates fluid water-containing materials, such as kitchen waste, which is finely crushed in a disposer. The purpose is to measure the improvement of

The dehydration basket is formed into a mortar shape with an upward opening, and the material to be dehydrated that is continuously thrown into the dehydration basket is moved along the inclined surface of the dehydration basket by centrifugal force, and water is dehydrated through the filter. On the other hand, a centrifugal dewatering apparatus in which the residue is discharged outwardly over the upper edge of the dewatering basket and is discharged and collected outside the machine is well known and is used, for example, in a juicer.

Such a centrifugal dehydrator is used not only as a juicer but also for dehydrating garbage.

In this case, for example, leftover food, leftover vegetables, and other water-containing materials generated in the kitchen are crushed into small pieces using a disposer, and the garbage is transported as a slurry-like fluid, dehydrated using the centrifugal dehydrator, and then transported. Make it convenient for incineration and fertilizer use.

However, in conventional centrifugal dewatering baskets well-known for juicers, etc., the upper part of the inner surface, which is the passage through which the dehydrated material moves, is completely open, and there is no limit to the cross-sectional thickness of the movement passage, so the dehydrating material had a tendency to be released outside the dehydration basket while it was not sufficiently centrifugally dehydrated.

In order to improve this point and increase the dehydration rate, a centrifugal dewatering device has already been proposed, which has an inner wall body that is installed concentrically at intervals inside the dewatering basket and is driven to rotate together with the dehydrating basket.

This configuration will be explained as follows with reference to FIG.

In FIG. 1, 1 is a base and 2 is a drive motor.

A rotary disk 3 is directly connected to the motor 2, and on the rotary disk 3 there is a mortar-shaped dewatering basket 5 with a large number of small holes 4 to form a filter, and inside the dehydrating basket 5 there is a A mortar-shaped inner wall body 7 is provided concentrically with spaced support pieces 6 disposed at several locations and fixed with screws.

With this structure, a passage 8 for the dehydrated material is formed between the dewatering basket 5 and the inner wall body 7 with a narrow and limited interval.

A casing body 9 surrounds the dehydration basket 5 to form a collection chamber 10 for dehydrated water, and is provided with a drain port 9a.

Reference numeral 11 denotes a casing lid that is placed over the casing body 9, and as is well known, has a cylindrical body 11a for introducing dehydrated materials in the center that opens close to the top surface of the dehydrating basket 5;
A discharge port 11 b for the residue of the dehydrated material is opened in the side surface portion, spanning the space between the casing body 9 and the casing body 9 .

Reference numeral 12 denotes a residue passage groove formed around the outer peripheral area of the upper edge of the dewatering basket 5, which guides the residue toward the discharge port 11b.

In the above configuration, the material to be dehydrated, for example, food waste, which is input from the input cylinder 11a as indicated by the solid arrow A, into the dewatering basket 5, is a slurry-like water-containing, fluid material to be dehydrated, which is obtained by crushing food waste finely with a waste sposer and then adding water. centrifugal force is given by
It is blown away in a radial direction through a narrow passage 8 between the dewatering basket 5 and the inner wall 7.

In this process, water contained in the material to be dehydrated is centrifuged through the small hole 4 of the dehydration basket 5 as indicated by the dotted arrow B, and is drained out of the machine through the water collection chamber 10 through the drain port 9a.

On the other hand, the residue continues to rise further in the narrow passage 8 as indicated by the chain arrow C, is discharged outward from the outer periphery of the dehydration basket 5, and is collected in a collection container (not shown) through the discharge port 1b.

In the above dehydration process, the cross-section of the passage 8 for the dehydrated material is limited to a narrow interval due to the presence of the inner wall 7, so that the dehydrated material passes between the inner wall 7 and the dehydration basket 5 while passing through the passage 8. In addition to the normal centrifugal separation effect, a so-called compression squeeze effect acts to improve the dehydration rate.

According to the experimental example, when the inner wall body 7 was removed from the dehydrated material obtained by adding the same weight of water to crushed food waste and stirring it, the weight reduction due to dehydration was about 60%; When equipped with body 7, it was possible to improve it to 85%.

. With the configuration in which the inner wall body 7 is attached in this manner, the dehydration rate can be improved.

However, as a result of the above-mentioned configuration, since the passage 8 is narrowed, the material to be dehydrated is centrifugally moved while being squeezed, so that passage resistance increases.

In this case, since the passage 8 has a structure in which the entire area is closed by the inner wall body 7 and the dewatering basket 5, a centrifugal pump effect as a kind of centrifugal pump occurs, and despite the increase in passage resistance, it is relatively The material to be dehydrated can be smoothly moved and released.

However, depending on the conditions, such as when the material to be dehydrated is highly sticky such as leftover food, the above-mentioned centrifugal pump effect alone may not be enough, and the movement of the material to be dehydrated for dehydration may not be smooth. Clogging due to residue,
There is also a risk of a decrease in the moving flow velocity.

In this case, if a stronger centrifugal pump effect can be applied to the material to be dehydrated, the high dewatering rate operation function can be utilized more effectively.

The purpose of this invention is to improve the dewatering efficiency by providing a more powerful centrifugal pump effect to the centrifugal dewatering apparatus having the structure already proposed above. For example, the passage of the material to be dehydrated is configured to be closed from the inlet to the outlet, and the bottom area of the dehydration basket is equipped with a rotary vane having a centrifugal pump function, so that the rotary vane dewaters during operation. It applies a strong centrifugal force to the material to be dehydrated placed in the basket, and works together with the inner wall to improve the dehydration rate while maintaining smooth movement of the material to be dehydrated.

This invention will be explained below based on illustrated embodiments.

In FIGS. 1 and 2, the charging cylinder 11a is arranged in alignment with the center of rotation of the dewatering basket 5. As shown in FIGS.

Thus, the inner wall body 7 is formed such that its lower edge 7a is close to the lower outer circumferential surface of the charging cylinder 11a.

A rotary blade 13 is installed on the upper surface of the one-way turntable 3 and located in the bottom area of the dewatering basket 5.

The rotary blade 13 holds the dewatering basket 5 between it and the rotary disk 3, and is secured together with the spacing support piece 6 and the inner wall body 7 with screws 14.

The structure of the rotary blade 13 is such that a plurality of ribs 13b extending in the radial direction are formed on the upper surface of a disk-shaped substrate 13a, and has a centrifugal pump function that acts as a centrifugal pump by rotational drive.

In the above configuration, the drive motor 2 drives the dewatering basket 5,
If a fluid material to be dehydrated is introduced from the input cylinder 11 a while the inner wall body 7 and the rotor 13 are driven to rotate at high speed, the material to be dehydrated is first subjected to a strong centrifugal force by the rotor 13 . It will be done.

Since the passage 8 for the dehydrated material is closed from the population to the outlet, the centrifugal pump effect mentioned above is enhanced,
The object to be dehydrated is powerfully moved inside a narrow passage 8 toward the outer periphery.

Therefore, due to the powerful centrifugal pump effect, the compressive force due to squeezing the material to be dehydrated between the dehydration basket 5 and the inner wall body 7 increases, and the effect of squeezing the contained moisture is accordingly enhanced, thereby improving the dehydration rate.

In addition, the powerful centrifugal pump effect allows the dehydrated material to move smoothly, reliably preventing clogging and adhesion.

As described above, according to this invention, in a device equipped with an inner wall body, the passage of the dehydrated material is closed from the inlet to the outlet, and rotary blades are installed in the bottom area of the dehydration basket. Therefore, it is possible to provide a centrifugal dewatering device which is of great practical use and can improve the dewatering efficiency by further increasing the centrifugal pump effect.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing an embodiment of this invention, and FIG. 2 is a sectional view taken along line II--II in FIG. 2: Drive motor, 4: Small hole constituting the filter, 5: Dewatering basket, 6: Spacing support piece, 7: Inner wall, 7a: Lower edge of inner wall, 8: Passage space for dehydrated material, 9: Casing main body,
11: Casing lid, 11a: Injection cylinder for dehydrated material, 1
3: Rotary blade.

Claims (1)

[Scope of utility model registration request] A mortar-shaped centrifugal dehydration basket having a large number of small holes to form a filter in the casing, and a mortar-shaped inner wall that is installed concentrically at intervals inside the dehydration basket and is driven to rotate together with the dehydration basket. A centrifugal pump function is provided in the bottom area of the dehydration basket, in which the fluid material to be dehydrated, which is placed in the approximate center of the dehydration basket, is subjected to centrifugal dehydration through the space between the inner wall body and the dehydration basket. A rotary blade having a rotary blade is provided, and a charging cylinder for dehydrating material opening facing the upper surface of the rotary blade is fixedly installed in the casing, and a lower edge of the inner wall body is connected to a lower outer circumferential surface of the charging cylinder. 1. A centrifugal dewatering device characterized in that the passageway of the material to be dehydrated is closed from the inlet to the outlet.