JPH04322752A - Garbage disposer - Google Patents

Abstract

PURPOSE:To solve both convergence of solid substance to the bottom face side and deviation thereof in the circumferential direction and also to obtain prescribed dehydration performance at low speed of rotation and to reduce labor burden necessary to garbage disposal in constitution wherein drainage incorporating garbage ground by a disposer is introduced into a centrifugal separation tank and solid substance is strained to perform dehydration. CONSTITUTION:The substance discharged from a disposer is introduced into the inside of a rotated centrifugal separation tank 4 through a drainage pipe 6, a manifold 7, an introduction pipe 5 and a conduit pipe 56. This discharged substance is energized in the circumferential direction by centrifugal force. Solid substance is strained by a filter 41 arranged in the circumferential wall. A tapered part 43 is provided in the whole circumference of the bottom part of the centrifugal separation tank 4. Upward force is given to drainage energized toward the circumferential wall to push up the solid substance stuck to the filter 41 to the upper part. Thereby the solid substance is prevented from being converged to the bottom face side. Further diameter of the centrifugal separation tank 4 is regulated to at least depth and high dehydration performance is obtained at the low speed of rotation. On the other hand, drainage is introduced into the center of the tank 4 from the conduit pipe 56 and uniformly distributed in the circumferential direction of the tank 4 to prevent deviation of the solid substance. Generation of vibration based on rotation is inhibited by adopting the low speed of rotation.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a kitchen waste disposal device that processes kitchen waste generated in a kitchen and allows a portion of it to be disposed of into a public sewer system.

0002

[Prior Art] Food waste (kitchen waste) that is generated every day in the kitchens of households, restaurants, etc., if left unattended, causes foul odors due to decomposition and the breeding of pests, impairing the sanitary environment of the kitchen. . Therefore, in Western countries, a kitchen waste crusher (disposer) is installed next to the drain of the sink, and after the kitchen waste that is directly thrown into the drain is crushed by the operation of this disposer, it is sent along with the waste water through the drain pipe to the public sewer system. It is common practice to dispose of

[0003] However, in Japan, there are problems such as blockage of sewage pipes and increased load on sewage treatment plants due to crushed kitchen waste, and in combined rainwater sewer systems, overflow water containing crushed kitchen waste is The amount of suspended solids (SS) in wastewater discharged to public sewers and biochemical oxygen demand are increasing due to the risk of pollution of natural water bodies such as rivers, lakes, and marshes due to runoff, and the occurrence of eutrophication phenomena. The allowable value of BOD (BOD) is strictly regulated by ordinance, and the reality is that wastewater from a disposer that contains crushed kitchen waste and is in a thick liquid state cannot meet the above regulations, and the use of disposers is prohibited. be.

[0004] Due to these circumstances, the general kitchen waste treatment in Japan is to capture kitchen waste with a mesh basket connected to the drain of the sink or a triangular corner basket placed on the corner of the sink. The procedure is to dispose of the kitchen waste taken out from the facility along with other garbage.

However, in such kitchen waste processing,
Kitchen waste left in the mesh basket or triangular corner basket may rot and fill the kitchen with a foul odor, and when the kitchen waste is removed, the sewage contained in the waste may spill out and contaminate the area around the sink. There are various inconveniences that impede the maintenance of a sanitary environment in the kitchen, and kitchen waste has to be taken out frequently, and each time it is taken out, it is necessary to wash the mesh basket or triangular corner basket and the area around the sink, which is a huge labor burden. There was a difficulty in being forced to do so.

[0006] In order to solve these difficulties, the applicant of the present application has
A disposer is connected to the drain of the sink, and a cylindrical centrifugal tank equipped with a fine-mesh filter on the peripheral wall and rotating around its axis is placed downstream of the disposer to remove crushed kitchen waste from the disposer. wastewater is introduced into the centrifugal separation tank, the solid content in the wastewater is filtered out by the filter, and only the water that has passed through the filter is discharged to the public sewer system. Already proposed.

[0007] In this kitchen waste treatment device, not only can the wastewater discharged to the public sewer meet the wastewater regulations stipulated by local ordinances, but also the kitchen waste remaining in the centrifugal separation tank is dehydrated after being crushed by the disposer. It is easy to take out, there is little risk of spoilage, the labor burden required for kitchen waste disposal is reduced, and a good sanitary environment in the kitchen can be maintained.

[0008]

[Problems to be Solved by the Invention] However, in the kitchen waste processing apparatus described above, the wastewater introduced from the disposer into the centrifugal separation tank once falls onto the bottom surface and is pressed against the peripheral wall by the centrifugal force accompanying the rotation of the centrifugal separation tank. Since the solid content is filtered out by a filter provided on the surrounding wall, the filtered solid content tends to concentrate on the bottom side, and the next drainage is not introduced after one operation is completed. When this is done, some of the solids that have already been dehydrated dissolve into this waste water and are filtered out again.As a result, the load on the filter increases each time the operation is repeated, and the kitchen waste must be processed many times in a row. However, there is an inconvenience in that the strained kitchen waste must be taken out frequently.

[0009] In addition, the kitchen waste filtered into the centrifugal separation tank is
Sufficient dehydration is required to prevent spoilage, but if a centrifugal separation tank that rotates at high speed is used to obtain the desired dehydration performance, large vibrations will occur as a result of rotation, which can be unpleasant to the ears. There is a possibility that this may lead to the generation of noise.

[0010]Furthermore, since the solid content in the waste water introduced during rotation of the centrifugal tank is pressed against the peripheral wall near the introduction position in plan view, the solid content adhering to the peripheral wall is biased in the circumferential direction. However, there is a problem in that the rotational vibration of the centrifugal separation tank is aggravated by the generation of an eccentric load due to this deviation, and in order to eliminate this eccentric load, the strained kitchen waste must be taken out frequently, and the kitchen waste must be processed multiple times. There is an inconvenience that it cannot be performed continuously.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to eliminate the concentration of solids near the bottom and the deviation in the circumferential direction in a centrifugal separation tank that filters solids in waste water from a disposer. The purpose of the present invention is to provide a kitchen waste processing device that can obtain a predetermined dewatering performance without adopting a high rotation speed, eliminates the need for frequent removal of strained kitchen waste, and is capable of continuous processing many times. do.

0012

[Means for Solving the Problems] A kitchen waste processing device according to a first aspect of the present invention includes a disposer that is connected to a drain port of a sink and that crushes kitchen waste that is thrown into the drain port together with the waste water, and an opening at the top. It has a cylindrical shape and includes a centrifugal separation tank into which wastewater from the disposer is input and rotates around its axis to filter solid content in the wastewater to a fine-mesh filter provided on its peripheral wall. , a kitchen waste treatment device configured to discharge wastewater that has passed through the filter, characterized in that the centrifugal separation tank has a bottom portion having a tapered surface whose diameter increases toward the top around the entire circumference thereof. do.

[0013] Furthermore, the kitchen waste processing apparatus according to the second aspect of the present invention is characterized in that the centrifugal separation tank has a diameter larger than its depth dimension.

Furthermore, the kitchen waste processing apparatus according to a third aspect of the present invention is characterized by comprising a water conduit that guides the waste water from the disposer to approximately the center of the opening of the centrifugal separation tank.

[0015]

[Function] In the first aspect of the present invention, the action of the tapered surface formed around the bottom applies an upward force to the waste water directed toward the peripheral wall of the centrifugal separation tank, and this force causes the waste water that has already adhered to the filter to Pushes solids upward to prevent solids from concentrating near the bottom.

Further, in the second aspect of the invention, a centrifugal separation tank having a diameter larger than its depth is used to obtain the desired dewatering performance at a low rotational speed and to suppress the occurrence of rotational vibration.

Furthermore, in the third aspect of the present invention, a water conduit pipe is provided approximately in the center of the centrifugal separation tank to guide the waste water, so that the waste water after introduction is evenly distributed in the circumferential direction of the centrifugal separation tank, and the solid content is distributed around the circumference of the centrifugal separation tank. Prevents deviation in direction and prevents rotational vibration from occurring.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to drawings showing embodiments thereof. FIG. 1 is a schematic side sectional view showing the overall configuration of a kitchen waste processing device according to the present invention (hereinafter referred to as the device of the present invention). In the figure, 1 is a sink, and 2 is a sink. The device of the present invention has a centrifugal separator 5 equipped with a centrifugal separation tank 4 on the downstream side of a disposer 3 connected to a drain port 2a that opens at the bottom of the sink 2. It will be arranged.

As is well known, the disposer 3 has a drain port 2.
A cylindrical housing 31 connected to a is provided with a fixed blade 32 projecting from the inner wall of the housing 31 and a rotary blade 33 that rotates in the same plane as the fixed blade 32. is configured to be rotated by a drive motor 34 fixed to the bottom of the housing 31. Kitchen waste thrown into the housing 31 from the drain port 2a is transferred to the fixed blade 32 and the rotary blade 3.
3 and is finely pulverized and discharged together with waste water into a drain pipe 6 whose one end is opened on the bottom side circumferential surface of the housing 31.

FIGS. 2 and 3 are enlarged sectional views of the centrifugal separator 5. The centrifugal separator 5 has a box-shaped housing 5.
A drive motor 52 is fixed to the bottom of the 0 via a plurality of damping spring legs 51, 51..., while a drain tank 53 is formed above the drive motor 52, and the drive motor 52 protrudes into the drain tank 53. The centrifugal separation tank 4 is detachably fixed to the tip of the output shaft via a vibration-proof rubber 54.

The upper part of the housing 50 can be opened and closed over almost the entire surface by an upper cover 55 which is hinged on one side edge, and the centrifugal separation tank 4 can be attached and detached from the output shaft of the drive motor 52 by simply This is done by opening the housing 50 as shown in FIG. The drain tank 53 formed inside the housing 50 has one end fixed to the bottom thereof, and is connected to a public sewer system (not shown) via a drain pipe 8 extending outside the housing 50.

A water guide pipe 56 is fixedly installed inside the upper lid 55 and extends along the inner surface of the upper lid 55 and is bent at a substantially right angle in the middle. The introduction tube 57 is fixed in such a manner that it penetrates the inside and outside, and when the upper lid 55 is closed as shown in FIG.
The proximal end of the water conduit 56 is loosely fitted into the inner end of the introduction pipe 57,
Both are configured to be interconnected. Also, at this time, the peripheral edge of the proximal end of the water conduit 56 comes into close contact with the annular packing 58 fixed around the introduction pipe 57, so that a watertight state can be obtained at the joint between the water conduit 56 and the introduction pipe 57. At the same time, the bent side end of the water conduit 56 is suspended substantially vertically downward, and is positioned substantially at the center of the centrifugal separation tank 4 in plan view.

The outer end of the introduction pipe 57 is connected to the drain pipe 6 of the disposer 3 via the connecting pipe 7 made of a flexible tube, and the water is discharged from the disposer 3 into the drain pipe 6 as described above. The waste water is introduced into the centrifugal separation tank 4 via the introduction pipe 57 and the water conduit 56. At this time, since the tip of the water conduit 56 is in the above-mentioned planar position, the waste water from the disposer 3 is transferred to the centrifugal separation tank 4.
It is introduced approximately at the center of the axial cross section. Also, the introduction pipe 5
The distal end side of 7 is reduced in diameter to be smaller than the connecting pipe 7 connected to the base end and the drain pipe 6 upstream of this, and has a function of limiting the amount of wastewater introduced into the centrifugal separation tank 4. fulfill.

FIG. 4 is an enlarged sectional view of the centrifugal separation tank 4. As shown in this figure, the centrifugal separation tank 4 has a cylindrical shape with the entire upper part open, and a fine-mesh filter 41 is provided on the entire inner surface of the peripheral wall in which a large number of extremely small diameter water passage holes 40, 40... are formed. It becomes attached. The bottom of the centrifugal separation tank 4 has a central flat surface 42.
The inner diameter D of the centrifugal separation tank 4 is
is set to be greater than or equal to the inner depth dimension H to the top of the tapered surface 43. In addition, 44 in the figure is a balance weight for dynamic balance adjustment made by thickening a part of the peripheral wall, and 45 is a balance weight that prevents the wastewater introduced into the centrifugal separation tank 4 from scattering from the upper opening. The distal end of the water conduit 56 is inserted into an opening formed in the center of the cover plate 45 for a predetermined length.

The centrifugal separation tank 4 configured as described above rotates around its axis by the rotation of the drive motor 52, and the lid plate 45
The filter 4 provided on the peripheral wall urges the wastewater introduced from the opening through the water conduit 56 toward the peripheral wall by centrifugal force.
1, the solid content contained in the wastewater, specifically the kitchen waste crushed by the disposer 3, is filtered out. The wastewater is introduced in a concentrated manner at the axial center of the centrifugal separation tank 4, and the force of the wastewater toward the peripheral wall is uniformly applied over the entire circumference, so that solids are removed in the circumferential direction of the filter 41. There is no deviation, and there is little possibility that rotational vibration will occur in the centrifugal separation tank 4 due to the eccentric load associated with this. Furthermore, since the slight rotational vibration generated in the centrifugal separation tank 4 is absorbed by the damping spring legs 51, 51, . It is carried out quietly without the noise associated with it.

Further, the tapered surface 43 formed at the bottom of the centrifugal separation tank 4 functions to apply an upward component force to the waste water urged toward the peripheral wall as described above. As a result, the waste water and the solid content contained therein do not concentrate near the bottom of the centrifugal separation tank 4, and the solid content is filtered out over a wide range in the depth direction of the filter 41. has the effect of pushing up the solid content already attached to the filter 41 toward the upper part of the centrifugal separation tank 4, so there is little risk that these solid content will dissolve into the waste water introduced later, and the bottom side Since the possibility of early clogging in the filter 41 is also reduced, it becomes possible to carry out multiple kitchen waste processes in succession.

Due to the centrifugal force caused by the rotation of the centrifugal separation tank 4,
The water that has passed through the filter 41 is ejected into the drainage tank 53 through the water passage holes 40, 40, etc. on the peripheral wall of the centrifugal separation tank 4, and then flows into the public sewer system through the drain pipe 8 connected to the bottom of the drainage tank 53. It is released into the river. This discharged water that has passed through the fine-mesh filter 41 can fully satisfy various drainage regulations based on local ordinances, and can be discharged into public sewers without any problems.

In addition, the solid content filtered out by the filter 41 (
The pulverized kitchen waste) has been sufficiently dehydrated by the rotation of the centrifugal separation tank 4, and can be left for a certain period of time without the risk of spoilage, and can be easily taken out without the risk of contaminating the surrounding area with sewage. The labor burden required for kitchen waste disposal is reduced. Note that the centrifugal separation tank 4 in the apparatus of the present invention has a diameter D larger than the depth dimension H, so that a sufficient dehydration effect can be obtained at a low rotation speed, and vibrations caused by the rotation of the centrifugal separation tank 4 can be prevented. On the other hand, the inner volume of the centrifugal separation tank 4 determined from the wastewater treatment amount can be reduced by a smaller depth dimension H.
This can be realized by adopting the centrifugal separator 5, which reduces the overall height of the centrifugal separator 5.
There is also the advantage that it can be arranged with plenty of room in the limited space at the bottom.

In this embodiment, a centrifugal separation tank 4 having a tapered surface 43 at the bottom and a diameter D greater than depth H is used, and a guide is further provided to guide the waste water to approximately the center of the centrifugal separation tank 4. In the case where the water pipe 56 is provided, that is, in the first embodiment of the present invention,
Although the case where the second and third inventions are simultaneously realized has been described, it goes without saying that each of these may be realized independently.

[0030]

Effects of the Invention As detailed above, in the apparatus of the present invention, the centrifugal separation tank that filters the solid content in the waste water introduced from the disposer through the fine filter provided on the peripheral wall expands upward. It has a tapered surface with a diameter, and as the centrifugal separation tank rotates, an upward force is applied to the wastewater that is urged toward the peripheral wall, which alleviates the concentration of wastewater on the bottom side and removes the water that has already adhered. Since the solids contained in the filter are successively pushed upwards, the load on the filter is reduced and kitchen waste can be processed multiple times in succession.

Furthermore, since the centrifugal separation tank has a diameter greater than its depth, desired dewatering performance can be obtained at low rotational speeds, and the occurrence of rotational vibrations can be suppressed.

Furthermore, since the waste water is introduced from the water conduit located approximately in the center of the centrifugal separation tank, the waste water flows approximately evenly in the circumferential direction of the centrifugal separation tank, and the solids that are filtered out by the filter are distributed in the circumferential direction. Due to the synergistic effect with the adoption of the low rotational speed, the occurrence of rotational vibration accompanying the rotation of the centrifugal separation tank is suppressed.

[0033] From the above, the kitchen waste captured in the centrifugal separation tank is not forced to be taken out frequently, and the kitchen waste can be processed many times in succession, the labor burden required for processing the kitchen waste is reduced, and the sanitary environment of the kitchen is improved. The present invention has excellent effects, such as being useful for maintaining.

[Brief explanation of drawings]

FIG. 1 is a schematic side sectional view showing the overall configuration of the device of the present invention.

FIG. 2 is an enlarged sectional view of a characteristic part of the device of the present invention.

FIG. 3 is an enlarged sectional view of a characteristic part of the device of the present invention.

FIG. 4 is an enlarged sectional view of a centrifugal separation tank.

[Explanation of symbols]

1. Sink 2 Sink 2a Drain port 3 Disposer 4 Centrifugal separation tank 5 Centrifuge device 6 Drain pipe 7 Connecting pipe 8 Drain pipe 41 Filter 43 Tapered surface 52 Drive motor 53 Drainage tank 56 Water pipe 57 Introductory pipe

Claims (3)

[Claims] Claims: 1. A disposer connected to a drain of a sink and pulverizing kitchen waste that is thrown into the drain along with the wastewater; and a cylindrical disposer with an opening at the top, into which the wastewater from the disposer is thrown. A kitchen waste treatment device comprising a centrifugal separation tank that rotates around an axis and filters solid content in the wastewater through a fine-mesh filter provided on its peripheral wall, and discharges the wastewater that has passed through the filter. The kitchen waste processing apparatus is characterized in that the centrifugal separation tank has a bottom portion having a tapered surface around the entire circumference, the diameter of which increases toward the top. 2. A disposer that is connected to a drain of the sink and that crushes kitchen waste that is thrown into the drain along with the waste water; and a disposer that has a cylindrical shape with an opening at the top and into which the waste water from the disposer is thrown. A kitchen waste treatment device comprising a centrifugal separation tank that rotates around an axis and filters solid content in the wastewater through a fine-mesh filter provided on its peripheral wall, and discharges the wastewater that has passed through the filter. A kitchen waste processing apparatus characterized in that the centrifugal separation tank has a diameter greater than its depth. 3. A disposer that is connected to a drain of the sink and that crushes kitchen waste that is thrown into the drain along with the wastewater; and a cylindrical disposer that has an opening at the top and into which the wastewater from the disposer is thrown. A kitchen waste treatment device comprising a centrifugal separation tank that rotates around an axis and filters solid content in the wastewater through a fine-mesh filter provided on its peripheral wall, and discharges the wastewater that has passed through the filter. A kitchen waste processing device characterized by comprising a water conduit pipe that guides wastewater from the disposer to approximately the center of the opening of the centrifugal separation tank.