JP2001347246A - Kitchen garbage disposer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a kitchen garbage disposer, in which an installation space is small and only one is used. SOLUTION: The garbage disposer 10 is provided with a decomposition tank 11, an intermediate pipe 12 being freely rotatably provided in the inside of the decomposition tank and equipped with agitating elements 30 in the surrounding, a screw shaft 13 provided concentrically freely rotatably in the inside of the intermediate pipe and a driving mechanism 15 equipped with a piece of motor M rotating and driving the intermediate pipe 12 and the screw shaft 13. The garbage disposer 10 is constituted so that crushed garbage containing moisture passed through the intermediate pipe 12 is carried on the upper end side of the intermediate pipe 12 by the screw shaft 13 and is shifted from a window 33 to the decomposition tank 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a garbage disposal apparatus. More specifically, the present invention relates to an apparatus for processing garbage discharged from business establishments handling food such as restaurants, and kitchens at home.

[0002]

2. Description of the Related Art Garbage discharged from business establishments and households is usually incinerated or landfilled by a city cleaning station or the like. Further, a disposer for crushing garbage is provided in a sink at home, the crushed garbage is poured into sewage together with water, and the garbage is decomposed by a waterworks bureau or the like. However, in each case, the burden on the environment is large. Recently, garbage has been pulverized with a disposer or the like, and then stored in a decomposition tank together with bacteria that decompose the garbage, processed into compost or livestock feed, or decomposed into carbon dioxide. Have been.

[0003] When such a decomposition tank is used, a solid-liquid separation treatment is carried out by a drainer using a screw conveyor at a stage prior to the decomposition layer, water is flowed into sewage, and only solid components are sent to the decomposition tank in many cases. . In that case, the installation space of the device is widened even when the draining device (solid-liquid separation device) and the decomposition tank are directly connected, or when a conveyor is interposed in the middle. In addition, since a drive mechanism such as a motor is provided in each device, if a control device and the like are included, the equipment becomes large and a large installation space is required.

[0004]

SUMMARY OF THE INVENTION It is a first object of the present invention to integrate a drainer and a decomposition tank, thereby reducing the installation space of the whole garbage disposal apparatus. Further, a second object of the present invention is to share a drive mechanism such as a motor so as to reduce the entire equipment and installation space.

[0005]

According to a first aspect of the present invention, there is provided a garbage disposal apparatus comprising: a decomposition tank; a stirring shaft rotatably provided inside the decomposition tank; A crushed garbage containing a screw shaft rotatably provided concentrically in a pipe provided in the vicinity of the decomposition tank and a drive mechanism for rotating and driving the stirring shaft and the screw shaft, and containing moisture passed through the pipe. Is conveyed to one end of the pipe by a screw shaft, and is moved to a decomposition tank from a window formed near the end.

In such a garbage disposal apparatus, the center axis of the stirring shaft is an intermediate pipe containing a screw shaft,
It is preferable that the rotation drive device drives the intermediate pipe and the screw shaft to rotate by one motor (claim 2). Further, it is preferable that the intermediate pipe and the screw shaft extend in the vertical direction, and the conveying direction of the screw shaft is upward (claim 3). Further, it is preferable to provide a partition wall for draining at some distance from the inner surface of the intermediate pipe (claim 4). Further, it is preferable that the center axis of the screw shaft is made of a pipe having a large number of holes, and one end of which is connected to a pipe for supplying washing water.

[0007]

The garbage disposal apparatus according to the present invention (claim 1) feeds crushed garbage and water into a pipe and rotates the screw shaft to feed the garbage in one direction in the pipe. Water and solids are separated on the way.
As you move closer to the end of the intermediate pipe,
The garbage is compressed and the water is extruded. The garbage that reaches the end of the pipe is sent from the window into the decomposition layer outside the pipe. Bacteria for processing are stored in the decomposition tank in advance. As a result, the garbage in the decomposition tank is stirred by the stirring blades provided around the rotation of the stirring shaft, and bacteria enter the garbage. Therefore, garbage is decomposed by bacteria, and feed and compost are produced or decomposed into carbon dioxide according to the type of bacteria and temperature conditions.

[0008] As described above, in the garbage disposal apparatus of the present invention, dewatering is performed inside a pipe provided near the decomposition tank and decomposed in the decomposition tank. Therefore, solid-liquid separation and decomposition can be performed simultaneously or sequentially by one device. Therefore, the installation space for the equipment is small.

In such an apparatus, the central axis of the stirring shaft is an intermediate pipe containing the screw shaft, and the rotary drive device drives the intermediate pipe and the screw shaft by one motor. In item 2), space is saved because dehydration is performed inside the decomposition layer. Further, since the stirring shaft and the screw shaft are rotated by one motor, the space for the motor and the space for the control circuit for the motor can be reduced to one. Of course, this reduces the number of parts and costs.

In the garbage processing apparatus wherein the intermediate pipe and the screw shaft extend in the vertical direction, and the conveying direction of the screw shaft is upward, the garbage is fed through the intermediate pipe by the screw shaft. Then, the water falls downward. Therefore, the solid-liquid separation action is more reliable.

Further, in the garbage disposal apparatus in which a partition wall for draining water is provided at a certain interval from the inner surface of the intermediate pipe, water in the garbage passes through the partition wall and the intermediate pipe and the partition wall. Extruded during. And it flows along the inner wall of the intermediate pipe. Therefore, the solid-liquid separation action is more reliable.

In a garbage disposal apparatus in which the center axis of the screw shaft is made of a pipe having a large number of holes, and one end of which is connected to a pipe for supplying washing water, the pipe is closed when the apparatus is stopped. By flowing the washing water from the road, the garbage in the intermediate pipe can be washed away. Therefore, clogging hardly occurs.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a garbage disposal apparatus of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view showing an embodiment of the garbage processing apparatus of the present invention, FIG. 2 is a perspective view showing the appearance of the garbage processing apparatus, and FIG.
FIGS. 4, 5, and 6 are cross-sectional views taken along the line III-III, and are cross-sectional views showing other embodiments of the garbage disposal apparatus of the present invention.

A garbage disposal apparatus 10 shown in FIG. 1 has a cylindrical decomposition tank 11 and an intermediate pipe (stirring shaft) 12 provided concentrically with the decomposition tank and rotatable around a vertical line.
And a screw shaft 13 provided concentrically and rotatably in the intermediate pipe. A tank 14 for storing dehydrated water is provided below the decomposition tank 11. A drive mechanism 15 for rotating the intermediate pipe 12 and the screw shaft 13 is provided above the decomposition tank 11.

On the bottom surface of the decomposition tank 11, a porous plate material, for example, a wire mesh 21, which allows water to pass but does not allow solids to pass therethrough is provided for partitioning from the tank 14. In addition, decomposition tank 11
As shown in FIG. 2, the side wall 22 has an opening 23 for approximately half a circumference and a door 24 for closing the opening 23 in a liquid-tight manner.
Are provided. Such an opening 23 and the door 2
4 cleans the decomposition tank 11 and the intermediate pipe 12,
This is for performing other maintenance. Returning to FIG. 1, a shower nozzle 26 for watering is provided on the top plate 25 of the decomposition tank 11. This shower nozzle 26
Is for cooling the heat generated in the garbage stored inside the decomposition tank 11 and for cleaning the decomposition tank 11. Also, the bottom surface 27 or the side wall 22 of the decomposition tank 11
Is provided with an electric heater for maintaining the temperature inside the decomposition tank 11 at a predetermined temperature. In addition, cooling may be performed by providing a cooling pipe or the like. Above the side wall 22 of the decomposition tank 11, an air hole 28 for supplying air is provided.

Around the intermediate pipe 12, for example, a screw-shaped stirring blade 30 is provided. The number of turns of the screw is preferably about 2 to 3 turns. In the case of a screw shape, in addition to stirring the garbage, the garbage below can always be sent upward to efficiently stir the garbage vertically. The upper end of the intermediate pipe 12 protrudes from the top plate 25 of the decomposition tank 11, and is rotatably supported by a bearing 31 or the like. The lower end protrudes downward from the wire net 21 and is rotatably supported by a bearing 32 or the like. The lower end of the intermediate pipe 12 is provided with a gap between itself and the bottom of the tank 14. The stirring blade 30 may be composed of a plurality of blades provided radially.

The agitating blades 30 are provided around the intermediate pipe 12 within the decomposition tank 11. Further, a window 33 communicating between the inside and the outside of the intermediate pipe 12 is formed near the upper end of the inside of the decomposition tank 11 of the intermediate pipe 12. On the inner surface of the intermediate pipe 12, a cylindrical, porous plate that allows water to pass but does not allow solids to pass, such as a wire mesh 34, is arranged so that there is some gap between the inner pipe 12 and the inner wall.

The screw shaft 13 has a pipe-shaped center shaft 41 and blades 42 around it. The outer diameter of the blade 42 is large enough to contact the inner surface of the wire mesh 34 in the intermediate pipe 11. A number of small holes (not shown) are formed in the central shaft 41. The size of the pores is such that water can pass through but not solids. The upper end of the central shaft 41 is connected to the output shaft of a motor M with a speed reducer and is rotatably supported. The lower end protrudes below the tank 14, is connected to a rotary joint 43, and is rotatably supported. The rotary joint 43 is for sending water for washing into the pipe-shaped central shaft 41, and a pipe 44 therefor is connected thereto.

Further, near the upper end of the screw shaft 13,
A push plate 45 is provided movably in the axial direction, and the push plate 45 is constantly urged downward by a spring 46.

A cylindrical partition wall 51 is provided in the dewatering tank 14 so as to surround a lower portion of the intermediate pipe 12. The partition wall 51 is formed with a number of small holes 52 that allow water to pass through but not solids. Further, to the partition wall 51, a pipe 53 for sending garbage crushed by the disposer together with water is connected. A pump P sends the crushed garbage together with water. The pipe 53 passes through the outer wall 54 of the tank 14.

A drain pipe 55 for flowing water collected by dehydration is connected to a lower portion of the outer wall 54 of the tank. Further, a pipe 56 for deaeration connected to a blower is connected to an upper portion of the outer wall 54 of the tank.

FIG. 3 shows the driving mechanism 15, which includes an upper part of a central shaft 41 of the screw shaft 13, a first gear 61 fixed to the central shaft 41, a first gear 61 A second gear 62 that meshes, a third gear 63 coaxially fixed so as to co-rotate with the second gear 62, and a ring gear 64 fixed around the intermediate pipe 12 so as to mesh with the third gear 63. Consists of The number of teeth of the second gear 62 is greater than the number of teeth of the first gear 61, and the number of teeth of the third gear 63 is less than the number of teeth of the second gear. The number of teeth of the ring gear 64 is larger than the number of teeth of the third gear 63. Therefore, when the center shaft 41 rotates, the intermediate pipe 12 rotates at a reduced rotation speed according to the gear ratio. The rotation direction is the same direction as the screw shaft 13. However, if the twisting direction of the stirring blade 30 is changed, the stirring blade 30 may be rotated in the opposite direction.

The rotation of the motor M may be intermittently performed according to a predetermined program, for example, by rotating the motor M for a certain period of time, temporarily stopping it, and then rotating it again depending on the compost or feed to be produced. However, it may be rotated continuously.

The garbage disposal apparatus 1 configured as described above
When 0 is used, bacteria for decomposing garbage are put in the decomposition tank 11 in advance. As the bacterium, for example, a conventionally known bacterium attached to sawdust or the like is used. As the type of fungus, an appropriate type is used depending on the type of garbage or the product produced by decomposition, that is, compost, feed, or the like. Depending on the type of garbage and the type of bacteria, it can be decomposed into water and carbon dioxide. Also, depending on the aerobic bacteria or the anaerobic bacteria, the temperature / humidity conditions of the activity, etc., by the heater or the shower nozzle 26 described above,
The conditions such as temperature, humidity, and carbon dioxide concentration inside the stirring layer are maintained in appropriate ranges.

Next, the motor M is driven to drive the intermediate pipe 12
Then, while rotating the screw shaft 13, the pump P is driven to feed garbage and water from the pipe 53 into the partition wall 52. The mixture of garbage and water sent into the partition wall 52 is sent upward on the blades 42 by the rotation of the screw shaft 13. The screw shaft 13
Sends the garbage containing water upward by the same action as the screw conveyor. As the mixture of garbage solids and water rises, the water gradually falls.

In this embodiment, the wire mesh 3 is formed inside the intermediate pipe 12 so as to form a gap between itself and the inner surface.
4 is provided, so that moisture flows downward from the gap. Therefore, the water flowing downward is not absorbed by the garbage on the lower blade 42. Therefore, the dehydration efficiency is high. As it goes upward, the garbage becomes only solids. Instead of providing the wire mesh 34, a small hole may be formed in the blade 42, in which case the falling water is absorbed by the garbage on the lower blade.

The solid content of the garbage carried to the upper end on the blades 42 hits the push plate 45, and is compressed at that portion, and further falls from the window 33 into the decomposition tank 11. In this case, since the push plate 45 is urged by the spring 46, the occurrence of clogging is prevented.

The solid content of the garbage deposited on the bottom of the decomposition tank 11 is stirred by the stirring blades 30 of the intermediate pipe 12 and mixed with the aforementioned bacteria. Further, in this embodiment, the stirring blade 30
Is formed in a screw shape, so that the garbage collected at the bottom of the decomposition tank 11 is sent upward by the stirring blades 36 and falls midway or from the upper end. Therefore, up and down stirring can be sufficiently performed. Air is contained in the garbage by stirring. Thereby, the activity of aerobic bacteria becomes active.

When bacteria decompose garbage into carbon dioxide and water,
Moisture comes out, and the moisture returns to the outside of the partition wall 51 in the tank 14 through the wire mesh 21 on the bottom surface. The water dehydrated from the garbage and the water generated by the decomposition are drained from the drain pipe 55. Since the inside of the tank 14 is constantly evacuated by the pipe 56 connected to the blower, the pressure is somewhat negative. Therefore, the water is forcibly squeezed below the wire net 21. The carbon dioxide gas generated by the decomposition at that time is also sucked into the tank 14 through the wire mesh 21 and discharged from the pipe 56. Although the inside of the decomposition tank 11 also has a negative pressure due to the exhaust by the blower, the air holes 2
Since air enters from 8, normal pressure is maintained.

When the garbage is decomposed into carbon dioxide and water by the bacteria as described above, the door 24 of the decomposition tank 11
Hardly needs to be opened. However, if it becomes necessary to replace the bacteria for some reason, the door 24 is opened, the inside of the decomposition tank 11 is washed, and new bacteria are introduced. In the case of washing, the shower nozzle 26 can be used, and the inside of the intermediate pipe 12 can be washed by supplying washing water to the screw shaft 13 from the pipe 44 at the lower end.

When producing compost or feed from garbage by bacteria, the compost or feed is taken out of the decomposition tank 11 by opening the door 24 as appropriate. In this case as well, the decomposition tank 11
Then, the inside of the intermediate pipe 13 is washed and new bacteria are introduced.

In the garbage processing apparatus 10 shown in FIG. 4, the intermediate pipe 12 is arranged in the horizontal direction, and the stirring blades 30 are arranged radially around the intermediate pipe 12. The tank 14 is provided separately at the end of the intermediate pipe 12 and the lower part of the decomposition tank 11. The other points are the same as those in FIG. The garbage can be sufficiently stirred by the stirring blade 30.

In the garbage processing apparatus 10 shown in FIG. 5, the intermediate pipe 12 is disposed obliquely. In other respects, it is substantially the same as that of FIG.

In the garbage processing apparatus 10 shown in FIG. 6, a pipe 70 is provided outside the decomposition tank 11, and the screw shaft 13 is accommodated in the pipe 70. The central axis 72 of the stirring shaft 71 is a solid rod. The center shaft 72 and the screw shaft 13 are driven to rotate by one motor M. This also saves space and simplifies the drive mechanism. Note that the stirring shaft 71 may be horizontal as shown in FIG. 4 or may be inclined as shown in FIG.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating an embodiment of a garbage disposal apparatus of the present invention.

FIG. 2 is a perspective view showing an appearance of the garbage processing apparatus of FIG.

FIG. 3 is a sectional view taken along line III-III of FIG.

FIG. 4 is a sectional view showing another embodiment of the garbage disposal apparatus of the present invention.

FIG. 5 is a cross-sectional view showing another embodiment of the garbage disposal apparatus of the present invention.

FIG. 6 is a sectional view showing another embodiment of the garbage disposal apparatus of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Garbage disposal apparatus 11 Decomposition tank 12 Intermediate pipe 13 Screw shaft 14 Tank 15 Drive mechanism 21 Wire mesh 22 Side wall 23 Opening 24 Door 25 Top plate 26 Shower nozzle 27 Bottom surface 28 Air hole 30 Stirring blade 31 Bearing 32 Bearing 33 Window 34 Wire mesh 41 central shaft 42 blade 43 rotary joint 44 pipe 45 push plate 46 spring 51 partition wall 52 small hole 53 pipe P pump 54 outer wall 56 pipe 61 first gear 62 second gear 63 third gear 64 ring gear 70 pipe 71 stirring shaft 72 center axis

Claims (5)

[Claims] 1. A decomposition tank, a stirring shaft rotatably provided inside the decomposition tank, and a stirring shaft provided around the decomposition tank, and a screw rotatably provided concentrically in a pipe provided near the decomposition tank. A shaft, a drive mechanism for rotating and driving the stirring shaft and the screw shaft, and crushed garbage containing moisture passed through the pipe is conveyed to one end of the pipe by the screw shaft and formed near the end thereof Garbage disposal device that is configured to move from the opened window to the decomposition tank. 2. A center axis of the stirring shaft is an intermediate pipe accommodating the screw shaft, and the rotation driving device is
The garbage disposal apparatus according to claim 1, wherein the motor drives the intermediate pipe and the screw shaft to rotate. 3. The garbage disposal apparatus according to claim 2, wherein the intermediate pipe and the screw shaft extend in a vertical direction, and a conveying direction of the screw shaft is upward. 4. A draining partition wall is provided at some distance from the inner surface of the intermediate pipe.
The garbage disposal device as described. 5. The garbage disposal apparatus according to claim 2, wherein a central axis of said screw shaft is made of a pipe having a large number of holes, and a pipe line for supplying washing water is connected to one end.