JPH10156328A - Garbage treatment apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress pressure increase in a decomposition vessel by forming the section parallel with a revolving shaft of vane surfaces for transporting crude refuse by the centrifugal force of a transporting section for transporting the crude refuse pulverized by a pulverizing section to the decomposition vessel to a size larger toward the outer side of the diameter of the revolving shaft. SOLUTION: A user treads a foot pedal to open an opening/closing gate to drop the crude refuse accumulated in a draining section into the transporting section 11 when treating the crude refuse accumulated in the draining section. Next, the user closes the opening/closing gate and operates an electric motor 11a for a prescribed time. The crude refuse is then coarsely pulverized by a pulverizing hammer 11c and is finely pulverized and cut by a stationary blade 11d for pulverizing. Centrifugal force is applied on the crude refuse falling from clearances 11f and the crude refuse is transported to the microorganism vessel of the decomposition vessel by rotation of vane surfaces 12b in the transporting section 12. At this time, the height (h) of the vane surfaces 12b is made larger toward the outer side of the diameter of the revolving shaft 11b, by which the large centrifugal force is applied on the crude refuse and the formation of the vane surfaces 12b small over the entire part is made possible.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage processing apparatus for processing garbage discharged in a kitchen or the like.

[0002]

2. Description of the Related Art As a garbage disposal apparatus, the present inventors have already filed an application in Japanese Patent Application No. Hei 8-105655, which includes a pulverizing section, a transport section, and a decomposition tank.

[0003]

By the way, the present inventors have conducted trial production and examination of the garbage disposal apparatus shown in the above-mentioned application, and found that the odor (unusual odor) in the decomposition tank was directed toward the garbage inlet. And the odor in the decomposition tank leaks out to the outside. Then, the inventors continued the examination and examination and found that the above-mentioned inconvenience occurred due to the causes described below.

[0004] That is, the transport unit of the above-mentioned application rotates a plurality of rotors to apply centrifugal force to the garbage, and conveys the garbage by blowing the garbage by the centrifugal force. An airflow is generated in the direction in which garbage is conveyed with the rotation of the rotor. For this reason, the pressure in the decomposition tank, which is on the downstream side of the airflow, increases, and when the rotary blades stop, the odor in the decomposition tank flows back toward the garbage input port.

[0005] Here, means for suppressing the generation of air flow by reducing the size of the rotating blades are conceivable. However, simply reducing the size of the rotating blades causes a new problem that the ability to convey garbage is reduced. Will occur. In view of the above, an object of the present invention is to suppress a rise in pressure in a decomposition tank while suppressing a decrease in transport capacity in a food waste treatment apparatus.

[0006]

The present invention uses the following technical means to achieve the above object. According to the first aspect of the present invention, the rotation axis (11) of the wing surface (12b) is provided.
The dimension (h) of the portion parallel to b) is characterized in that it increases toward the radially outer side of the rotating shaft (11b).

By the way, the transport section (12) of the garbage disposal apparatus according to the present invention transports the garbage toward the decomposition tank (14) by applying a centrifugal force through the wing surface (12b). Therefore, if the size of the wing surface (12b) is simply reduced, the centrifugal force applied to the garbage will be reduced, and the transfer capacity of the transfer unit (12) will be reduced.

On the other hand, in the present invention, the dimension (h)
(Hereinafter referred to as the height (h) of the wing surface (12b).) The larger the wing surface (12b) is, the larger the radially outward side of the rotating shaft (11b) is. The height (h) of the wing surface (12b) is larger at a portion on the radially outer side where the airflow can be performed. Therefore, the wing surface (12b) can be reduced as a whole while effectively applying a centrifugal force to the garbage when conveying the garbage.

The transport section (12) includes a passage (11f)
Is transported toward the decomposition tank (14), so that at least a portion corresponding to the passage (11f) needs to have a wing surface (12b). . In other words, the diameter of the rotating blade (12a) (the dimension from the rotating shaft (11a) to the radially outer end of the rotating blade (12a)) needs to be larger than the outer dimension of the crushing portion (11). is there.

For this reason, the means for reducing the diameter of the rotating blade (12a) as a means for reducing the rotating blade (12a) involves downsizing of the crushing section (11) (decreasing crushing ability). Above is difficult. Therefore, as means for reducing the size of the rotary wing (12a), the wing surface (12b)
Is a practical means to reduce the height (h) of the object.
However, if the height (h) of the wing surface (12b) is uniformly reduced, the area of the outlet (12e) of the transport unit (12) is reduced, as described later, so that the reduction of the transport capacity is reduced. I will invite you.

On the other hand, according to the present invention, since the height (h) of the wing surface (12b) becomes larger toward the radially outer side, the outlet (12e) of the transporting section (12) is formed. Reduction of the area can be suppressed. As described above, according to the garbage processing apparatus of the present invention, it is possible to suppress a rise in pressure in the decomposition tank (14) while preventing a decrease in the transfer capacity of garbage, and thus the decomposition tank It is possible to prevent the odor in (14) from flowing back toward the inlet (6).

According to the present invention, a centrifugal force is applied to the garbage through a frictional force generated between the garbage and the circumferential rotating surface (13c), and the garbage is removed by the centrifugal force. It is transported toward the decomposition tank (14). Thus, unlike the invention according to claim 1, the rotation shaft (11
Even if there is no wing surface (12b) crossing the rotation direction of a),
Since garbage can be transported, the wing surface (12b) can be eliminated. Therefore, it is difficult to generate an airflow flowing toward the decomposition tank (14), so that it is possible to prevent the pressure in the decomposition tank (14) from increasing.

According to the third aspect of the present invention, the conical inclined surface (13a) whose radial dimension increases toward the lower side in the vertical direction is formed on the circumferential rotating surface (13c). Features. By the way, if the rotating body (13) has a simple disk shape, when the rotating body (13) is not rotating, garbage is easily deposited on the disk-shaped rotating body.

On the other hand, according to the present invention, since the conical inclined surface (13a) is formed, the garbage falls down along the inclined surface (13a), so that the rotating body (13) is formed. ) Can be prevented from accumulating garbage. According to the fourth aspect of the present invention, the inclined surface (13
In (a), a projection (13b) projecting radially from the inclined surface (13a) may be formed on the upper side in the vertical direction.

The reference numerals in parentheses of the above means indicate the correspondence with the specific means described in the embodiment described later.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; (First Embodiment) FIG. 1 shows a schematic overall configuration diagram of a garbage processing apparatus 1 according to the present embodiment. The garbage processing apparatus 1 is installed in a kitchen sink (sink) in a general household. This is the type (type) that is used.

Reference numeral 2 denotes a sink, and the sink 2 is provided with a discharge hole 3 for discharging waste water discharged to a sink to a sewer pipe. The drain hole 3 is provided with a grid-shaped drainer 4 having a plurality of small holes. In addition, below the draining unit 4, garbage is crushed by a crushing unit 11 described later.
A transfer path 5 is formed to transfer the garbage to the garbage. And
The inlet 6 is opened and closed by a spherical opening / closing gate 7 installed between the drainer 4 and the inlet 6.

Incidentally, the opening / closing gate 7 is configured to be opened / closed by means of a user's own operating force by means such as a foot pedal (not shown). In addition, a discharge path 8 for discharging the drainage flowing out of the draining section 4 is provided at an outer peripheral portion of the transfer path 5, and the discharge path 8 is provided with:
When the opening / closing gate 7 opens the input port 6, the opening / closing gate 7
Also functions as a storage unit in which is stored.

Downstream of the discharge passage 8, a first discharge pipe 9 made of, for example, butyl rubber or the like (chloroprene rubber) is attached. Is connected to a merging / discharging section 10 described below. On the other hand, a pulverizing section 11 for pulverizing garbage is provided at a downstream portion of the transfer path 5, and the pulverizing section 11 includes an electric motor 11a as shown in FIG.
Hammer 11c that rotates in conjunction with the rotating shaft 11b
And a grinding fixed blade 11d fixed to the housing 5a around the grinding hammer 11c.

The crushing hammer 11c is connected to a rotating shaft 11b via a disk-shaped crushing rotor 11e, and a crushing section is provided between the outer edge of the crushing rotor 11e and the fixed crushing blade 11d. A gap 11f is formed which forms a passage connecting the transfer section 11 and a transport section 12 described later. Also, 11g is
The crushed garbage is sequentially transferred to the transport unit 12 through the gap 11f.
A guide plate (guide plate) for sending out the sheet.
And this guide plate 11g is used for the grinding hammer 11
and a predetermined angle θ with respect to the rotating shaft 11b (vertical direction) so as to deflect the velocity component in the rotation direction given to the garbage by the c and the crushing rotor 11e toward the conveying unit 12 (vertically downward) (this embodiment). (See FIG. 3).

Reference numeral 12 denotes a transport unit for transporting the garbage crushed by the crushing unit 11 to a decomposition tank 14 which will be described later. As shown in FIG. 2, the transport unit 12 interlocks with the rotating shaft 11b. A plurality of (two in this embodiment) rotating blades 1
2a. A portion of the rotary blade 12a corresponding to the gap 11f is provided with a blade surface 12b substantially orthogonal to the rotation direction of the rotary shaft 11b.
2b is formed in a substantially right triangle so that the dimension h of a portion parallel to the rotating shaft 11b (hereinafter referred to as the height of the wing surface 12b) increases toward the radially outer side of the rotating shaft 11b. ing.

In this embodiment, the height h of the wing surface 12b is the lower side in the vertical direction (hereinafter, this portion is referred to as the hypotenuse 12c).
Call. ) Has changed (inclined). And hypotenuse 12
A predetermined gap 12d is formed between the housing 5a and the housing 5a facing the hypotenuse 12c.
Is set so that the gap 12d is substantially constant.
The shape conforms to the shape of.

In FIG. 1, reference numeral 14 denotes a decomposition tank for decomposing garbage pulverized in the pulverizing section 11, in which a microorganism container 15 is provided. 15 contains a microbial carrier carrying aerobic bacteria that can withstand high temperatures. At the bottom of the microorganism container 15, a mesh-shaped water-passing portion 16 having water-permeability is provided. Decomposed water generated at the time of decomposition of garbage by the water-passing portion 16 is discharged to a discharge passage located below. 17

The microorganism container 15 is provided with a stirring blade 18 for stirring the garbage introduced into the microorganism container 15 and the microorganism carrier to increase the efficiency of decomposition of the garbage. The stirring blade 18 is rotationally driven by a stirring motor 20 via a belt 19. Further, a pipe-shaped second discharge pipe 21 for discharging the decomposed water flowing in the discharge passage 17 to the merged discharge part 10 is attached downstream of the discharge passage 17.

On the other hand, a temperature control heater 22 for adjusting the temperature inside the microorganism container 15 to a predetermined temperature is provided above the decomposition tank 14, and heat generated by the temperature control heater 22 is supplied to a fan 23. Is blown into the microorganism container 15. Reference numeral 24 denotes a ventilation pump 24 which leaks decomposition gas generated in the microorganism container 15 to the outside of the garbage disposal apparatus 1 via a pipe 25 made of vinyl chloride, that is, to a room (for example, a kitchen). It is discharged to the merging discharge unit 10 so that it does not occur.

In this embodiment, the ventilation pump 24 and the temperature control heater 22 are configured to always operate while power is supplied from outside the garbage disposal apparatus 1.
Next, the garbage processing process of the garbage processing apparatus 1 will be briefly described (see FIG. 1). First, as the garbage accumulates in the draining part 4, the water in the garbage naturally flows out from the plurality of small holes formed in the draining part 4 to the discharge path 8, and the garbage is discharged. Draining is performed.

When the user disposes of the garbage deposited in the draining section 4, the user opens the opening / closing gate 7 (input port 6) by stepping on the foot pedal. Then, the drainer 4 is removed and the garbage deposited in the drainer 4 is dropped to the crusher 11 through the transfer path 5. Next, after the foot pedal is released and the opening / closing gate 7 is closed, the electric motor 11a operates for a predetermined time (about 2 minutes in the present embodiment). Thereby, in the crushing unit 11,
The garbage is coarsely pulverized by the impact force of the pulverizing hammer 11c, and the coarsely pulverized garbage is blown outwardly and finely pulverized and cut by the fixed pulverizing blade 11d.

On the other hand, in the transport section 12, a centrifugal force is directly applied to the garbage dropped from the gap 11f through the wing surface 12b, and the garbage is blown off by the centrifugal force so that the microorganism container 15 in the decomposition tank 14 is removed. Conveyed toward. Also,
In the microorganism container 15, the stirring wing 18 is rotated to stir the garbage sent into the microorganism container 15 and the microorganism carrier in the microorganism container 15, thereby promoting the decomposition of the garbage by the microorganism.

The decomposed water generated at the time of decomposition of the garbage is discharged to the merging and discharging part 10 by the second discharging pipe 21, while the decomposed gas is discharged to the merging and discharging part 10 by the ventilation pump 24. You. By the way, when the garbage disposal device 1 is not used, the waste water is discharged to the discharge passage 9 located on the right side in FIG.
Is sent to the merging / discharging section 10.

Next, the features of this embodiment will be described. The transporting unit 12 transports the garbage toward the decomposition tank 14 (microorganism container 15) by applying centrifugal force to the garbage falling into the transporting unit 12 from the gap 11f via the wing surface 12b. Therefore, if the size of the rotary wing 12a (wing surface 12b) is simply reduced, the conveyance unit 1
2, the centrifugal force applied to the garbage that has fallen becomes small, and the carrying capacity of the carrying unit 12 decreases.

On the other hand, in the present embodiment, the wing surface 12
Since the height h of the b increases toward the radially outer side of the rotating shaft 11b, the radially outward portion capable of applying a large centrifugal force to the garbage increases the height of the blade surface 12b. The height h will increase. Therefore, when conveying the garbage, the centrifugal force can be effectively applied to the garbage, and the wing surface 12b can be reduced as a whole.

Since the crushing unit 12 transports the garbage that has fallen into the transport unit 12 from the gap 11f toward the decomposition tank 14, at least a portion corresponding to the gap 11f has a wing surface 12b. Is required to be present. In other words, the diameter R of the rotating blade 12a (the rotating shaft 11
a to the radially outer end of the rotor 12a) must be larger than the radius of the grinding rotor 11e.

Therefore, as means for reducing the size of the rotor 12a, means for reducing the radial dimension R of the rotor 12a include:
Since the size of the crushing unit 11 is reduced (the crushing ability is reduced), it is difficult to design the packaging. Therefore, as a means for reducing the size of the rotary wing 12a, it is a practical means to reduce the height h of the wing surface 12b. However, if the wing surface 12b
If the height h is uniformly reduced, the area of the outlet 12e (see FIG. 1) of the pulverizing unit 11 is reduced, which leads to a reduction in the transport capacity.

On the other hand, according to the present embodiment, since the height h of the wing surface 12b becomes larger toward the radially outer side, the area of the outlet 12e of the transport section 12 is suppressed from being reduced. can do. As described above, according to the garbage processing apparatus 1 according to the present embodiment, it is possible to suppress a rise in the pressure in the decomposition tank 14 while preventing a reduction in the transfer capacity of the garbage, The odor in 14 can be prevented from flowing back toward inlet 6.

(Second Embodiment) In the present embodiment, the transport unit 1
As shown in FIG. 4, instead of the rotating blades 12a, the transporting means 2 rotates in conjunction with the rotating shaft 11a as shown in FIG.
The rotating body 13 has a circumferential rotating surface 13c parallel to the rotating direction of the rotating shaft 11b. And furthermore,
A conical inclined surface 13a whose radial dimension increases from the vicinity of the portion corresponding to the gap 11f toward the radially outer side of the circumferential rotating surface 13c toward the lower side in the vertical direction is formed.

Thus, the transport unit 12 applies a centrifugal force to the garbage via the frictional force generated between the garbage and the circumferential rotation surface 13c (the inclined surface 13a), and the centrifugal force causes the garbage to be applied to the garbage. Is transported toward the decomposition tank 14. Therefore, unlike the above-described embodiment, food waste can be transported without the wing surface 12b intersecting with the rotation direction of the rotation shaft 11a, and the wing surface 12b can be eliminated. Therefore, it is difficult to generate an airflow flowing toward the decomposition tank 14, and it is possible to prevent the pressure in the decomposition tank 14 from increasing.

Assuming that the rotating body 13 has a simple disk shape, the garbage remaining in the space 5b (see FIG. 4) between the rotating body 13 and the housing 5a causes the rotating body 13 to rotate. Otherwise, it is deposited on the disk-like rotating body 13. On the other hand, in the present embodiment, since the conical inclined surface 13a is formed, garbage and the like remaining in the space 5b fall downward along the inclined surface 13a. It is possible to prevent garbage and the like from being deposited on the garbage.

(Third Embodiment) In the present embodiment, as shown in FIG.
A plurality of (two in the present embodiment) projecting wings (projecting portions) 13b radially protruding from the inclined surface 13a are formed on the vertically upper side of the inclined surface 13a.

By the way, the transport unit 1 in the second embodiment
2, the blade surface 12b intersecting with the rotation direction of the rotation shaft 11a
Garbage is likely to accumulate in the space 5b between the inclined surface 13a and the housing 5a. On the contrary,
In the present embodiment, since the projection wing 13b is formed,
With the rotation of the rotating body 13, the garbage accumulated in the space 5b is pushed out by the projection wings 13b. Therefore, garbage hardly accumulates in the space 5b, and the transport capacity of the transport unit 12 can be improved.

By the way, depending on the shape of the projection wing 13b, an airflow flowing toward the decomposition tank 14 is generated with the rotation of the projection wing 13b. It is necessary to appropriately select a shape that does not excessively increase. According to the examination and examination by the inventors, the wing surface 13d of the projection wing 13b is oriented in such a manner that an airflow is generated toward the inlet 6 (vertically upward) with the rotation of the projection wing 13b. It is inclined (see FIG. 6), and it is concluded that the angle Θ between the wing surface 13d and the direction (horizontal direction) perpendicular to the rotation axis 11c is desirably 0 ° to 10 °. ing.

In the first embodiment, the rotating blades 12
In a, the straight hypotenuse 12c is formed such that the height h of the wing surface 12b becomes larger toward the radially outward side of the rotation shaft 11b, but the wing surface 12c is formed such that the hypotenuse 12c becomes a curve. The height h of 12b may be changed. Further, in the second and third embodiments, the conical inclined surface 13a is formed on the rotating body 13, but the inclined surface 13a is eliminated to simplify the shape of the circumferential rotating surface 13c (the rotating body 13). It may be flat.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a garbage processing apparatus according to the present embodiment.

FIG. 2 is a sectional view of a pulverizing unit and a transporting unit.

FIG. 3 is an enlarged perspective view of a crushing unit.

FIG. 4 is a cross-sectional view of a pulverizing unit and a transporting unit according to a second embodiment.

FIG. 5A is a top view illustrating a rotating body of a pulverizing unit according to a third embodiment, and FIG. 5B is a front view of the rotating body.

FIG. 6 is an explanatory diagram for explaining the inclination of the projection wing.

[Explanation of symbols]

11: crushing unit, 11a: electric motor, 11b: rotary shaft,
11c: grinding hammer, 11d: fixed blade for grinding, 11e ...
Grinding rotor, 11f gap (passage), 12 transport section, 1
2a: rotating wing, 12b: wing surface, 13: rotating body, 13a ...
Slope.

Claims (4)

[Claims] An input port (6) into which garbage is charged, a crushing section (11) for crushing the garbage input from the input port (6), and crushed in the crushing section (11). A garbage processing apparatus comprising: a decomposition tank (14) for decomposing and purifying garbage; and a transport section (12) for transporting the garbage crushed in the crushing section (11) to the decomposition tank (14). A portion of the transport section (12) corresponding to a passage (11f) from the pulverizing section (11) to the transport section (12) is provided with a rotating shaft (11b). (11
b) a plurality of rotating blades (12a) having a blade surface (12b) that rotates around and intersects with the rotation direction of the rotating shaft (11b); A centrifugal force is applied to the garbage via the wing surface (12b), and the garbage is conveyed toward the decomposition tank (14) by the centrifugal force.
The dimension (h) of the part parallel to b) is the same as the rotation axis (11).
b) A garbage disposal apparatus characterized in that the garbage disposal apparatus becomes larger toward the outer side of the diameter. 2. A decomposition tank (14) for storing the garbage and decomposing and purifying the stored garbage, and an input port (6) communicating with the decomposition tub (14) and into which the garbage is introduced. A transport unit (12) for transporting the garbage input from the input port (6) to the decomposition tank (14), wherein the transport unit (12) includes a rotating shaft. A rotating body (13) that rotates in conjunction with (11b) and has a circumferential rotating surface (13c) parallel to the rotating direction of the rotating shaft (11b) is provided. , The garbage and the circumferential rotating surface (13
c) by applying a centrifugal force to the garbage via a frictional force generated between the garbage and the centrifugal force, thereby separating the garbage into the decomposition tank
A garbage disposal device that is transported toward 3. An axial direction of the rotating shaft (11b) is parallel to a vertical direction, and further, on the circumferential rotating surface (13c), a cone whose radial dimension increases toward the lower side in the vertical direction. Inclined surface (1
3. The garbage disposal device according to claim 2, wherein 3a) is formed. 4. A projection (13b) projecting radially from the inclined surface (13a) is formed vertically above the inclined surface (13a). A garbage disposal apparatus according to item 1.