JPH10156319A - Garbage treatment apparatus and its inside temperature control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make efficiently execute the aerobic decomposition treatment of garbage and to prevent generation of malodors by allowing aerobic microorganisms to live effectively in carriers without killing these microorganisms. SOLUTION: The agitating vanes 5 of the garbage treating machine contg. agitating vanes rotated by a driving means is provided with agitating blades 21 on one side spirally clockwise from one end side to approximately the central position of a revolving shaft 16 and is provided with another agitating blades 22 spirally counterclockwise from the other end side to approximately the central position of the revolving shaft 16. A heater is operated to maintain or heat up the inside of the body at or to the lower limit temp. when the temp. in the garbage treatment machine body is at the prescribed lower limit temp. The operation of the heater is stopped when the temp. in the crude refuse treating machine body attains the prescribed upper limit temp. The temp. in the garbage treatment machine is thus controlled.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for reliably removing garbage, such as vegetables, fruits, fishes, garbage and the like, discarded from homes, restaurants, etc., at homes, shops, business establishments, and local governments. The present invention relates to a garbage disposer capable of easily performing an aerobic decomposition treatment and a method for controlling the internal temperature thereof.

[0002]

2. Description of the Related Art Regarding the treatment of garbage discharged from ordinary households and restaurants, various local governments and various business establishments have been researching and developing methods for more effective disposal. Conventional methods of disposal of garbage include methods of dumping, landfilling, incineration, and decomposition treatment by microorganisms.However, methods of dumping and landfilling pose pollution such as water pollution, bad smell, and generation of pests. Cause problems. In addition, there is a problem in that the incineration method requires a huge amount and costs.

[0003] Therefore, it is considered that the method of decomposing by microorganisms is the most effective method for the treatment of garbage, and conventionally, Japanese Patent Publication No. 2-3679 and Japanese Patent Publication No. 2-1039.
No. 8, Japanese Patent Publication No. 2-30760, Japanese Utility Model Publication No. 3-2
No. 2385, Japanese Utility Model Publication No. 3-88683, Japanese Patent Application Laid-Open No. 4-4084, Japanese Patent Application Laid-Open No. 5-57264, Japanese Patent Application Laid-Open No. 5-221765, Japanese Patent Application Laid-Open No. 7-51655, and Japanese Patent Application Laid-Open No. 8-57458. Methods and apparatuses have been developed as disclosed in gazettes and the like.

[0004] Here, garbage is generally decomposed by a microorganism (aerobic bacterium "Bacillus") (aerobic decomposition treatment).
To do so, it is necessary to have an optimal location, temperature, oxygen content and moisture content for microorganisms. The cedar chip (hereinafter referred to as a carrier) developed by the present inventors is the most effective as a material that effectively secures the four conditions necessary for this microorganism. This one carrier is a myriad of honeycomb-shaped vessels (cavities)
It is constituted by. The vein is a passage for transferring water absorbed by the plant from the roots to the leaves of the tree, and is most suitable for a place where microorganisms live, and has excellent water retention and breathability, which are important for the growth of microorganisms.

It is considered optimal to process garbage using this carrier. However, currently available garbage processing apparatuses are provided with stirring blades a around a rotating shaft b as shown in FIG. 11, for example. By providing stirring blades c of various forms as shown in the figure and rotating the stirring blades a provided with the stirring blades c, the garbage and the sawdust put into the apparatus are stirred, and they live on the sawdust. The garbage was decomposed into carbon dioxide and water by aerobic microorganisms (hereinafter referred to as cells).

[0006]

Therefore, when the above-mentioned carrier (Biouglan) is used instead of sawdust,
In the structure of the stirring blade a as described above, when the stirring blade a is rotated, each stirring blade c acts so as to hit the carrier, and it becomes difficult to efficiently supply oxygen to the cells by pressing the carrier, and the bacteria Over time, it becomes difficult to kill the body and completely disassemble the garbage. In addition, aerobic decomposition is changed to anaerobic decomposition due to the death of the cells, so that not only can garbage not be efficiently decomposed, but also an odor is generated. Even if the stirring blade a is continuously rotated to solve the problem, aerobic decomposition does not occur, which not only leads to breakage of the carrier but also cannot solve the problem.

[0007] The present invention has been developed in view of the above-mentioned points, and an object of the present invention is to enable bacteria to efficiently inhabit a carrier without killing the cells and to efficiently produce garbage in an aerobic manner. An object of the present invention is to provide a garbage disposer capable of decomposing and preventing the generation of offensive odor and a method of controlling the internal temperature thereof.

[0008]

The present invention has the following configuration in order to effectively achieve the above object. That is, the garbage disposer according to claim 1 of the present invention is a garbage disposer incorporating a stirring blade that is rotated by a driving means, wherein the stirring blade is agitated on one side from one end of the rotating shaft to a substantially central position. The blade is provided in a right-handed spiral shape, and the other stirring blade is provided in a left-handed spiral shape from the other end of the rotating shaft to a substantially central position.

According to a second aspect of the present invention, there is provided a method for controlling an internal temperature of a garbage disposer according to the present invention, wherein a heater is operated when the temperature inside the garbage disposer is at a predetermined lower limit temperature, so that the inside of the main unit can be controlled to a lower limit temperature. The temperature of the garbage disposer is controlled by controlling the temperature of the garbage disposer by stopping the operation of the heater when the temperature inside the garbage disposer reaches a predetermined upper limit temperature. .

According to a third aspect of the present invention, there is provided a method for controlling the internal temperature of a garbage disposer according to the second aspect, wherein the lower limit temperature is 20 ° C. and the upper limit temperature is 40 ° C.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, reference numeral 1 denotes an example of a garbage processing machine according to the present invention.
Is a garbage disposer main body 2, a stirring tank 3, a stirring blade 4
, Drive means 5, water sprinkler 6, heater 7, temperature detection sensor 8, operation panel 9, control panel 10, and the like.

More specifically (see FIGS. 1 to 10), the garbage disposer main body 2 has a substantially rectangular box shape with a hollow inside, and an opening 11 for garbage introduction is formed at an upper portion thereof. The opening 11 is provided with a lid 12 via a gas spring 13. The opening 11 can be opened and closed by moving the lid 12 up and down. Further, a cutout 14 for discharging the carrier is formed from the front part to the bottom part of the garbage disposer main body 2, and a door 14a that opens forward is provided in the cutout part 14 so as to be openable and closable. Also,
Casters 15 with stoppers are provided at the four bottom corners of the garbage disposer main body 2 so that the garbage disposer main body 2 can be easily moved.

Inside the garbage disposer main body 2, there is provided an upper opening cylindrical stirring tank 3 having an arcuate bottom and closed at both ends. This stirring tank 3 has both side walls 3
a, the rotating shaft 16 which constitutes the stirring blade 4 penetrates the bearing 1
It is rotatably provided by 7, 18 (see FIG. 3).
The bearings 17 and 18 are fixed to support members 19 and 20 provided on the outer surfaces of both side walls 3 a of the stirring tank 3.

The rotary shaft 16 is provided with a right-handed spiral stirring blade 21 on one side from one end of the rotary shaft 16 to a substantially central position, and from the other end of the rotary shaft 16 to a substantially central position. The other stirring blade 22 is provided in a left-handed spiral shape. Each of the stirring blades 21 and 22 is composed of a plurality of support rods 23 provided vertically perpendicularly outward from the rotation shaft 16 and a spirally formed stirring member 24 supported and fixed by the support rods 23. The stirring blade 4 according to
And a plurality of support rods 23 as stirring blades 21 and 22 and a stirring member 24. The rotation shaft 16
In contrast, the stirring blade 21 is provided in a left-handed spiral shape, and the stirring blade 2
2 may be provided in a right-handed spiral.

The rotating shaft 16 is connected to the driving means 5 so as to be rotatable. The driving means 5 includes a sprocket 25 provided at one end of the rotating shaft 16, a motor 26 with a speed reducer, a sprocket 28 provided on a main shaft 27 of the motor 26, and a chain 29 bridged over the sprockets 25 and 28. Become. Motor 2 with reduction gear
Reference numeral 6 is provided on the bottom surface of the garbage disposer main body 2 outside the stirring tank 3.

A water sprinkler 6 (see FIGS. 1 and 7 to 8) is provided inside the upper part of the garbage disposer main body 2, and water appropriate for bacteria is automatically introduced from each nozzle 30 into the stirring tank 3. Water can be sprayed either automatically or semi-automatically. Reference numeral 31 denotes a water supply connection port provided at the bottom of the garbage disposer main body 2 and is connected to the sprinkler 6.

Reference numeral 32 denotes an exhaust fan provided on the upper side of the garbage disposer main body 2, and reference numeral 33 denotes an intake port provided on the upper rear side of the refuse disposer main body 2. An operation panel 9 is provided on the upper front of the garbage disposer main body 2, and a control panel 10 is provided inside the garbage disposer main body 2. Further, a heater 7 and a temperature detection sensor 8 for increasing the temperature in the stirring tank 3 or maintaining the temperature at a constant temperature are provided in the stirring tank 3.

Further, a small opening 34 is formed in a portion of the stirring tank 3 which faces the front position of the notch 14 (see FIG. 7) for discharging the carrier of the garbage disposer main body 2, and this opening is formed. A cover 35 for opening / closing 34 is a take-out opening / closing handle 36
Is provided in the stirring tank 3 via the. 37 is a stirring blade 4
Tank 3 in the vicinity of lid 35 so that
Is a switch provided on the outer surface.

The opening 34 is used when the carrier in the stirring tank 3 is replaced. When the carrier in the stirring tank 3 is taken out, the door 14a of the garbage disposer main body 2 is opened to the front. A tray (not shown) is placed below the opening 34. The switch 37 is turned on to bring the stirring blade 4 into a stirring state. Next, the take-out opening / closing handle 36 is turned. As a result, the opening 34 is opened, and the carrier in the stirring tank 3 automatically falls from the opening 34 to the tray. When the tray is full, switch 37 is turned off. This operation is repeated until the carrier in the stirring tank 3 runs out. After the removal of the carrier is completed, the take-out opening / closing handle 36 is turned to close the opening 34 with the lid 35, and the switch 37 is turned off.

In the figure, reference numeral 38 denotes a handle formed on the side surface of the garbage disposer main body 2, reference numeral 39 denotes a power plug, and cord 40 is connected to a control circuit (not shown) in a control panel. By operating each switch of the operation panel 10, the above-described various devices can be automatically or semi-automatically or manually operated and stopped.

The garbage disposer 1 having the above configuration
First, a carrier is put into the stirring tank 3 and garbage is put into the stirring tank 3 through the opening 11 for putting garbage. Opening 11
The lid 12 is controlled so that the rotation of the stirring blade 4 is stopped by opening the lid 12 when the garbage is put in, and the stirring blade 4 is rotated when the lid 12 is closed.

After the garbage is charged as described above, the heater 7 is automatically operated, and the temperature is raised to 40 ° C. at which the activity of the cells adhering to the vessels of the carrier becomes active, followed by stirring. When the temperature in the tank 3 reaches 40 ° C., the operation of the heater 7 is automatically stopped. The temperature increase of 40 ° C. or more is left to the activation temperature of the cells. By raising the temperature of the stirring tank 3 to 40 ° C., the activity temperature of the cells is artificially created in a short time.

In this way, the garbage is stirred by the stirring blades 4 together with the carrier in which the cells live, whereby the input garbage is decomposed into water and carbon dioxide by the cells over time, and the water is removed from the cells. The carbon dioxide gas is released into the atmosphere by the exhaust fan 32.

The stirring blade 4 has a blade structure that is easy to stir the carrier.
In this structure, the left and right spiral stirring blades 21 and 22 are softly rotated near the bottom surface of the stirring tank 3 filled with the carrier, and the entire carrier is stirred in the stirring tank 3.
It comes to the front center from the bottom inside. For this reason, the blades are directly hit and stirred as in the past,
The entire filled carrier is moved, and moved from the left and right sides to the upper part from the lower part toward the center part, and after the movement, the carrier naturally falls from the upper part to the lower part at the front part in the center part. Easy stirring can be obtained without breakage of the carrier, and the amount of oxygen required by the cells can be uniformly supplied to all the carriers. Therefore, the activity of the anaerobic microorganisms can be suppressed, and the generation of offensive odor can be suppressed.

After the garbage charged as described above is aerobicly decomposed by the cells and completed, the temperature in the stirring tank 3 is reduced to 2 ° C.
The temperature drops to 0 ° C., and thereafter, the heater 7 operates to maintain the temperature in the stirring tank 3 at 20 ° C. By keeping the cells at 20 ° C., the rest temperature of the cells is reached, and the carrier can be used as a carrier for a long time without decomposing the carrier itself.

The temperature in the stirring tank 3 naturally reaches the active temperature of the cells up to about 55 ° C., and after the introduction of garbage, aerobic decomposition is particularly strong up to about 4 to 5 hours, and the generation of carbon dioxide The amount is kept around 2.5%. Of course, the above-mentioned numerical values differ depending on the type of garbage. After this period, the garbage will almost disappear and the amount of carbon dioxide generated will be very small. After the garbage has disappeared, the temperature in the stirring tank 3 naturally drops, and in order to quickly restore the activity temperature of the garbage to be re-entered in the stirring tank 3 after a few hours, the temperature in the stirring tank 3 must be reduced. Is 20
The heater 7 is activated when the temperature in the stirring tank 3 reaches 20 ° C.
Hold at ° C. Further, the temperature of 20 ° C. has an effect of not only preventing the cells from hibernating, but also reducing the operating cost efficiently.

In the conventional garbage disposal apparatus, the heater is activated when the temperature falls below 40 ° C., so that the temperature inside the stirring tank is maintained at 40 ° C. Although the action temperature is maintained, the action of destroying the carrier occurs.
By keeping the temperature at ° C., the carrier is not destroyed even when there is no garbage, the frequency of replacing the carrier can be suppressed, and the running cost can be reduced.

In the above-described example of the garbage processing machine, the predetermined lower limit temperature is set at 20 ° C. and the predetermined upper limit temperature is set at 40 ° C. The predetermined lower limit temperature may be a temperature of about 20 ° C. or another temperature depending on the above condition. Similarly, the predetermined upper limit temperature is set to 40 ° C., but may be a temperature before or after or another temperature.

Further, the garbage processing machine according to the present invention can be used as a processing machine for sewage sludge, swamp lake sludge, animal and plant food residue, and the like.

[0030]

As described above, in the garbage disposer according to the first aspect of the present invention, the stirring blade is provided with a right-handed spiral with one side of the stirring blade from one end of the rotary shaft to a substantially central position. Since the other stirring blade is provided in a left-handed spiral form from the other end of the rotating shaft to substantially the center position, the stirring blade is rotated to stir the garbage together with the carrier, thereby being filled. The entire carrier together with the garbage is moved toward the center from both the left and right sides of the device and moved upward from the lower part of the device, and then the carrier along with the garbage is moved from the upper front to the lower front in the center of the device. Since the carrier falls naturally, gentle stirring can be obtained as compared to the conventional action of the stirring blades hitting the carrier, the carrier is not damaged, and the amount of oxygen required by the bacterial cells is evenly distributed to all the carriers. Can supply . In addition, aerobic decomposition of garbage can be maintained by the cells, and generation of offensive odor can be eliminated.

In the method for controlling the internal temperature of a garbage disposer according to the second aspect of the present invention, the heater is operated to the set upper limit temperature to raise the temperature inside the stop unit, and the garbage is introduced into the apparatus. Later, the bacteria can be quickly activated to decompose the garbage. In addition, after decomposition of garbage, the heater is activated when the temperature inside the device reaches the lower limit temperature, and the temperature inside the device is maintained at the lower limit temperature state, so that the carrier can be destroyed even when there is no garbage. Without
The frequency of carrier exchange can be suppressed, and costs can be reduced.

In the method for controlling the internal temperature of a garbage disposer according to the third aspect of the present invention, the carrier can be prevented from being broken by maintaining the lower limit temperature which is a set temperature in the apparatus. In addition, by setting the upper limit temperature to 40 ° C., the bacteria can be quickly activated to decompose garbage.

[Brief description of the drawings]

FIG. 1 is a simplified perspective view of an example of a garbage processing machine according to the present invention.

FIG. 2 is a plan view of an example garbage disposer according to the present invention.

FIG. 3 is an explanatory view of a main part of an example of a garbage processing machine according to the present invention.

FIG. 4 is a left side view of an example garbage disposer according to the present invention.

FIG. 5 is a right side view of an example garbage disposer according to the present invention.

FIG. 6 is a plan view of a main body of an example garbage disposer according to the present invention.

FIG. 7 is a front view of a main body of an example garbage disposer according to the present invention.

FIG. 8 is a left side view of a main body of the example garbage disposer according to the present invention.

FIG. 9 is a right side view of the main body of the example garbage disposer according to the present invention.

FIG. 10 is an explanatory view of an example of the stirring blade according to the present invention as viewed from the side.

FIG. 11 is an explanatory diagram showing an example of the related art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Garbage processing machine 4 Stirrer blade 5 Drive means 16 Rotating shaft 21 Stirrer blade 22 Stirrer blade

Claims (3)

[Claims] 1. A garbage disposer incorporating a stirring blade that is rotated by a driving means, wherein the stirring blade has a right-handed spiral with a stirring blade on one side from one end of a rotating shaft to a substantially central position. A garbage disposer characterized in that the other stirring blade is provided in a left-handed spiral form from the other end of the shaft to a substantially central position. 2. When the temperature inside the garbage disposal machine is at a predetermined lower limit temperature, a heater is operated to maintain or raise the temperature inside the garbage disposal machine so that the temperature inside the garbage disposal machine body becomes a predetermined temperature. A method for controlling the internal temperature of a garbage disposer, wherein the operation of the heater is stopped when the temperature reaches the upper limit temperature to control the temperature inside the garbage disposer. 3. A method according to claim 2, wherein the lower limit temperature is set to 20 ° C. and the upper limit temperature is set to 40 ° C.