JPH08173994A - Solid-liquid separation apparatus - Google Patents

Abstract

PURPOSE: To prevent the generation of an offensive odor by constituting an apparatus to enable cleaning the front and back of a filtration part and garbage stuck or deposited on a ribbon screw and the inside of a casing. CONSTITUTION: In a solid-liquid separation apparatus in a garbage treatment machine, an electromagnetic gate valve 18 is installed in a drain pipe 2 to store temporarily during cleaning fluid in a casing 19 having the filtration part 1 of the solid-liquid separation apparatus.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solid-liquid separation device after crushing food waste from a kitchen, for example.

[0002]

2. Description of the Related Art A device for draining food waste from a kitchen, that is, for solid-liquid separation, is a filter section (screen).
There is a coil-shaped screw (ribbon screw) rotatably arranged in an annular space formed by concentrically combining inner and outer cylinders having the above.

By the way, sticky garbage is attached to the surface of the filtration part of these solid-liquid separation devices during use,
In addition, oily substances in the drainage may adhere, or fine particles of food waste that have leaked from the filtration unit may adhere to the back side of the filtration unit. In addition, the solid waste liquid-separated food waste adheres to and accumulates on the ribbon screw and the inner surface of the casing.

[0004]

However, in the above-mentioned conventional solid-liquid separation device, the garbage collected on the front and back surfaces of the filtering section and the oily substances in the discharged liquid are removed, and the garbage collected on the ribbon screw is removed. The reality is that no consideration is given to removal. Thus, if the garbage and the oil quality in the drainage adhered to the front and back surfaces of the filtration section and the ribbon screw are left for a long time, a bad odor is generated.

The present invention has been made in view of the above-mentioned problems of the prior art, and is configured to enable cleaning of the front and back surfaces of the filtering portion and the garbage collected and deposited on the ribbon screw and the inner surface of the casing. However, it is an object of the present invention to provide a solid-liquid separation device capable of preventing the generation of a bad odor.

[0006]

In order to achieve the above-mentioned object, the solid-liquid separation device of the present invention has a filter part of the solid-liquid separation device during cleaning in the solid-liquid separation device in the garbage disposal. A sluice valve was arranged in the drain pipe to temporarily store the fluid in the casing, and a scraping body for cleaning the back surface was installed on the back surface side of the filtration body of the filtration unit.

[0007]

In the solid-liquid separation device of the present invention, after closing the sluice valve, a predetermined amount of fluid is stored in the casing having the filtering portion of the solid-liquid separation device, and the solid-liquid separation device is operated in the normal or reverse direction for a predetermined time. By doing so, raw garbage attached to the front and back surfaces of the filtration section, the ribbon screw, and the inner surface of the casing, the oil quality in the discharged liquid, and the like are separated by stirring.

[0008]

An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic vertical cross-sectional view of a solid-liquid separation device of the present invention, FIG. 2 is an enlarged view of the configuration of a filtration part of the solid-liquid separation device of the present invention, and FIG. 3 is a configuration of the solid-liquid separation device of the present invention. It is a diagram showing the shape of an element ribbon screw,
4A is a front view, FIG. 4B is a view taken along the line AA of FIG.
FIG. 3 is a diagram showing a shape of a rotational force transmission plate which is a constituent element of the solid-liquid separation device of the present invention, (a) is a plan view, (b) is a view taken along the line BB of FIG. 5 is a diagram showing the shape of a rotary plate which is a component of the solid-liquid separation device of the present invention,
(A) is a top view, (b) is a CC arrow view of (a).

1 and 2, reference numeral 1 forms an annular space 1c by concentrically arranging a filtration inner cylinder 1a formed of a mesh member and a filtration outer cylinder 1b formed of a mesh member. The lower end of the filtration inner cylinder 1a is connected to the drainage pipe 2, and the lower end of the filtration outer cylinder 1b is fixed to the machine base 3.

Reference numeral 4 denotes a drive wheel rotatably supported on the machine base 3 via a bearing 5. A gear 6 is externally fitted and fixed to the outer periphery of a lower portion of the drive wheel, and a pinion 7 meshing with the gear 6 serves as a drive source. The rotation of a certain motor 8 is transmitted. A coil-shaped ribbon screw 9 inserted into an annular space 1c formed by the inner filtration tube 1a and the outer filtration tube 1b is attached to the upper surface of the drive wheel 4.

As shown in FIG. 3, a concave portion 9a having a depth T1 and a width S1 and a concave portion 9b having a depth T2 and a width S2 are provided on the inner and outer circumferences of the upper end portion of the ribbon screw 9.
0, the rotational force transmission plate 13 is installed on the auxiliary plate 12 to which the scraping plate 11 is attached in a hanging shape, and as shown in FIG. 4, the rotational force transmission plate 13 is fitted into the recess 9a at the inner peripheral portion thereof. The key portion 13a is provided to transmit the rotation of the ribbon screw 9 to the scraping plate 11. The scraping plate 11 has a length capable of covering substantially the entire area in the height direction of the filtration outer cylinder 1b, and its side surface is arranged at a slight distance from the outer peripheral surface of the filtration outer cylinder 1b.

Reference numeral 14 is a rotary plate mounted on the ribbon screw 9 similarly to the rotary force transmitting plate 13, and a key portion 14a fitted to the recess 9b is provided on the outer peripheral portion of the rotary plate 14 as shown in FIG. , Rotation of ribbon screw 9 axis 1
Transmit to 5. A feed blade 16 is attached to the upper portion of the shaft 15, and a cleaning screw 17 inserted into the filtration inner cylinder 1a is attached to the lower portion thereof so as to rotate them. The cleaning screw 17 has a length such that the outer peripheral portion thereof has a slight gap with the inner peripheral surface of the filtration inner cylinder 1a and can cover substantially the entire height direction of the filtration inner cylinder 1a. 9 and reverse winding direction (filtration inner cylinder 1a
Has a coil shape in a direction in which the adhered matter adhered to the inner peripheral surface of is transferred downward).

Reference numeral 18 denotes an electromagnetic sluice valve provided in the drain pipe 2. The opening and closing of the electromagnetic sluice valve 18 stores and discharges water in the filtration unit 1, and is provided in the casing 19. A sensor 21 provided above the drain pipe 20 detects the amount of water stored in the filter unit 1. Reference numeral 22 denotes a carry-in pipe installed below the casing 19, and 23 denotes a discharge pipe installed above the casing 19.

The solid-liquid separation device of the present invention has the above-mentioned structure. During normal operation, the electromagnetic sluice valve 18 is opened, and the garbage discharged from the washing dish (sinker) and crushed Filtering unit 1 through the inlet pipe 22 together with tap water
To the annular space 1c. The raw garbage and tap water in the annular space 1c are driven by a motor 8 to a pinion 7, a gear 6,
It is moved upward by the ribbon screw 9 which is rotated via the drive wheel 4. During this upward movement, water passes from the filtration inner cylinder 1a through the drain pipe 2 and the filtration outer cylinder 1b.
Is drained through the drainage pipes 20 and 2. At this time, drainage from the filtration outer cylinder 1b first flows out from the point F, but if the lower part of the filtration outer cylinder 1b is clogged, it will flow out from the upper point G.

In addition, the solid waste solid material from which the water has been removed by the feed blade 16 installed above the ribbon screw 9 passes through the discharge pipe 23 and is charged with, for example, a waste container (not shown) or an organic matter degrading microorganism (EM bacterium). It is put into the container. At this time, the coil shape of the ribbon screw 9 is formed so that the feeding speed of the food waste solids by the feed blade 16 is lower than the feeding speed of the food waste solids by the ribbon screw 9. Due to the difference in the feeding speed, the food waste solid matter is further compressed during the transportation through the discharge pipe 23, and draining is performed.

Further, while the above-mentioned food waste is subjected to solid-liquid separation and put into a garbage container (not shown) or a container into which organic matter-decomposing microorganisms (EM bacteria) have been introduced, the rotation of the motor 8 causes the rotational force transmission plate 1 to rotate.
3 is transmitted to the scraping plate 11 and the cleaning screw 17 via the rotary plate 14, and the sticky substance and the fine dust particles are adhered to the inner peripheral surface of the filtration inner cylinder 1a and the outer peripheral surface of the filtration outer cylinder 1b. Adhesion is prevented as much as possible, but this alone completely removes adhered matters on the inner and outer peripheral surfaces of the filtration inner cylinder 1a, the inner and outer peripheral surfaces of the filtration outer cylinder 1b, the ribbon screw 9, and the inner surface of the casing 19. Can not.

Therefore, in the solid-liquid separation device of the present invention, the inner and outer peripheral surfaces of the filtration inner cylinder 1a, the inner and outer peripheral surfaces of the filtration outer cylinder 1b, the ribbon screw 9, and the inner surface of the casing 19 are cleaned as follows. That is, after closing the electromagnetic sluice valve 18, tap water is guided to the filtering unit 1 through the carry-in pipe 22. When the sensor 21 detects that a predetermined amount of water is stored in the casing 19 having the filtering unit 1, the ribbon screw 9 is normally and reversely rotated for a predetermined time.

After that, the electromagnetic sluice valve 18 is opened, and the ribbon screw 9 is further rotated forward and backward for a predetermined time. The oil quality in the drainage is discharged from the drain pipe 2 together with water, and the food waste is separated from the inner peripheral surface of the filtration inner cylinder 1a, the outer peripheral surface of the filtration outer cylinder 1b, and the ribbon screw 9.

When the cleaning operation is continuously performed in the food waste processing machine, the operation is as follows. Operate the tap to guide the water to the garbage processor. By operating the operation button of the food waste disposer, the crusher and the solid-liquid separation device provided upstream in the food waste disposer are activated. The garbage is put into the crusher, and after the crushing noise disappears, for example, 20 seconds later, the stop button is operated to stop the crusher. The solid-liquid separation device performs a normal operation for a predetermined time by a timer and then stops, and further performs the cleaning operation as described above for a predetermined time. Operate the tap to stop the water.

In this embodiment, the case where the ribbon screw is normally and reversely rotated for a predetermined time during the cleaning operation is explained, but the ribbon screw may be reversely rotated for a predetermined time. Further, the cleaning effect can be obtained by only the normal rotation, and the control system such as the motor can be constructed at low cost. The solid-liquid separation device of the present invention is shown in FIG.
The present invention is not limited to the internal / external double pipe structure as shown in FIG. 5, but can be used for the raw garbage powder processing apparatus disclosed in Japanese Patent Laid-Open No. 5-184963 and other raw garbage processing apparatuses.

In the embodiment shown in FIG. 1, the filtration inner cylinder 1
Although a and the filtration outer cylinder 1b have shown the cylindrical shape, they may have a truncated conical cylinder shape. In this case, the ribbon screw 9 is also the same. Further, although the filtering unit 1 is shown as vertically arranged in the present embodiment, it may be arranged at an inclination. Further, the ribbon screws 9 may not have the same pitch as in this embodiment, but may have different pitches. Furthermore, the ribbon screw 9 is used to take out the rotational force of the scraping plate 11 and the rotational force of the cleaning screw 17, the feed blade 16, and the like.
It may be taken out from the lower part or the central part instead of the upper end.

[0022]

As described above, according to the solid-liquid separation device of the present invention, in the solid-liquid separation device in the garbage treatment machine, the fluid is temporarily stored in the casing having the filtering part of the solid-liquid separation device at the time of cleaning. Since the sluice valve was installed in the drain pipe in order to do so, after closing the sluice valve, a predetermined amount of fluid was stored in the filtration section of the solid-liquid separation device, and the solid-liquid separation device was operated in the normal or reverse direction for a predetermined time. , Agitating and separating raw garbage attached to the front and back surfaces of the filtration section, the ribbon screw, and the inner surface of the casing, and the oil quality in the discharged liquid. Further, the cleaning effect can be obtained by only the normal rotation, and the control system such as the motor can be constructed at low cost. Furthermore, when a scraping body for cleaning the back side is installed on the back side of the filtration body of the filtration unit,
The effect of removing food waste and oil in drainage increases.

[Brief description of drawings]

FIG. 1 is a schematic vertical sectional view of a solid-liquid separator of the present invention.

FIG. 2 is an enlarged view showing a configuration of a filtration part of the solid-liquid separation device of the present invention.

3A and 3B are diagrams showing the shape of a ribbon screw that is a constituent element of the solid-liquid separation device of the present invention, in which FIG. 3A is a front view and FIG. 3B is a view taken along the line AA of FIG. is there.

FIG. 4 is a diagram showing the shape of a rotational force transmission plate that is a component of the solid-liquid separation device of the present invention, in which (a) is a plan view,
(B) is a BB arrow line view of (a).

5A and 5B are diagrams showing the shape of a rotary plate which is a constituent element of the solid-liquid separation device of the present invention, in which FIG. 5A is a plan view and FIG. 5B is a view taken along the line CC of FIG. is there.

[Explanation of symbols]

 1 Filtration part 1a Filtration inner cylinder 1b Filtration outer cylinder 1c Annular space 2 Drain pipe 8 Motor 9 Ribbon screw 11 Scraping plate 16 Feeding blade 17 Cleaning screw 18 Electromagnetic gate valve 19 Casing 20 Drain pipe 21 Sensor 22 Carrying pipe 23 Discharge pipe

Claims (2)

[Claims] 1. A solid-liquid separator in a food waste processor, wherein a sluice valve is provided in a drain pipe for temporarily storing a fluid in a casing having a filter of the solid-liquid separator during cleaning. Solid-liquid separation device. 2. The solid-liquid separation device according to claim 1, wherein a scraping body for cleaning the back surface of the filtration unit is provided on the back surface side of the filtration body.