JP2005034813A - Garbage treating apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a garbage treating apparatus capable of efficiently fermenting and drying garbage. <P>SOLUTION: The garbage treating apparatus is provided with a rotatable rotary shaft 22 supporting an agitator 21 mounted in a fermentation tank 2, and a drive control section 5 driving the rotary shaft 22. Further, in the apparatus, the agitator 21 is attached so as to slant to the rotary shaft 22 extending in a roughly horizontal direction, a slant of the agitator 21 to the rotary shaft 22 on one end side of the rotary shaft 22 is arranged so as to become opposite from the slant of the agitator 21 on the other end side to the rotary shaft 22, the drive control section 5 detects a load to drive the rotary shaft 22, and a drive command is outputted so as to rotate the rotary shaft 22 in a opposite direction when a load not less than a predetermined amount is detected. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  This invention is a fertilizer or feed by fermenting food processing residues discharged from kitchens, food processing plants, etc., or organic waste such as unused fish discharged from fish markets, farms, etc., so-called food waste The present invention relates to a garbage disposal apparatus.

In general, garbage contains a lot of moisture. Therefore, in order to ferment the raw garbage and make it into fertilizer or feed, for example, while the raw garbage put in the fermenter is stirred and pulverized by a rotating stirring blade, heated air is supplied to the fermentor or the fermenter is heated. There has been proposed a garbage processing apparatus that promotes fermentation of food waste by heating it or the like and performs a drying treatment after the fermentation treatment. In such a garbage disposal apparatus, in order to facilitate discharge of the object to be processed, a discharge port is provided at the end of the fermenter, and the object to be processed is attached to the end of the fermenter by a ribbon type stirring screw or the like. There is a structure that moves and discharges. As a prior art in this technical field, for example, there is Patent Document 1.
Japanese Patent Application Laid-Open No. 9-1117

  However, in the conventional garbage processing apparatus, the object to be processed is moved only in one direction by the rotation of the rotating stirring blade, so that the stirring efficiency is poor, and the difficulty of fermentation and drying is low because it is difficult to contact with heated air. was there.

  In addition, when a hard workpiece is sandwiched between the rotating stirring blade and the side wall of the fermenter, the rotating stirring blade becomes impossible to rotate, and the process stops when the drive motor automatically stops. May occur.

  In addition, in a garbage processing apparatus that has a structure in which the object to be processed is moved to the end of the fermenter with a ribbon-type stirring screw or the like and discharged, it is necessary to install an outlet for the object to be processed at the end of the fermenter Since a work space for taking out garbage is required also on the side of the apparatus, a larger installation area is required.

  Furthermore, since the air in the fermenter contains dust that is generated when the object to be treated is dried, when discharged to the outside of the garbage processing device, defects in the processing device after exhaust such as a deodorizer There was a problem of causing dust or scattering dust in the environment.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain a garbage disposal device that can efficiently ferment and dry garbage.

  The garbage processing apparatus according to the present invention includes a rotatable rotating shaft that supports a stirring blade provided in a processing tank, and a drive control unit that drives the rotating shaft, and the drive control unit includes the rotating shaft. A load for driving is detected, and when a load of a predetermined amount or more is detected, a drive command is output so as to rotate the rotating shaft in the reverse direction.

  Agitating blades are attached so as to incline to a rotating shaft extending in a substantially horizontal direction, and the inclination of the agitating blade on one end side of the rotating shaft with respect to the rotating shaft is opposite to the inclination of the agitating blade on the other end side of the rotating shaft with respect to the rotating shaft. By arranging in the above, there is an effect of improving the stirring efficiency of the object to be processed.

Embodiment 1 FIG.
1 is a perspective view of a garbage disposal apparatus according to Embodiment 1 of the present invention. As shown in the figure, the garbage processing apparatus 100 includes an operation panel 101, a garbage input door 102, and a garbage discharge door 103. The user opens the garbage input door 102, inputs an object to be processed in which moisture adjusting agents and microorganisms are mixed into the garbage into the garbage processing apparatus 100, and gives an operation instruction using the operation panel 101. In addition, when fermentation and drying of the object to be processed are completed, the discharge door 103 can be opened and the object to be processed can be taken out from the garbage processing apparatus 100.

  FIG. 2 is a schematic diagram showing the internal structure of the garbage disposal apparatus 100. As shown in the figure, the garbage processing apparatus 100 includes a high-temperature air generation unit 1, a fermenter (treatment tank) 2, a dust collector (air discharge unit) 3, a motor 4, and a drive control unit 5.

  An object to be processed 24 is put into the fermenter 2. The high-temperature air generation unit 1 heats the air to heat the workpiece 24 put in the fermenter 2 to about 60 ° C. to 80 ° C. and supplies the air to the fermenter 2. The dust collector 3 removes dust contained in the exhaust when the air in the fermenter 2 is discharged to the outside of the apparatus.

  A rotating shaft 22 is rotatably installed on both end walls of the fermenter 2, and a plurality of stirring blades 21 are attached to the rotating shaft 22. As the rotating shaft 22 rotates, the stirring blade 21 rotates, and the workpiece 24 put into the fermenter 2 is stirred and crushed. The discharge port 23 is provided in the center of the side surface of the fermenter 2 and is used to take out the object to be processed.

  The rotating shaft 22 is rotated by the rotation of the motor 4. The rotation direction of the motor 4 is controlled by the drive control unit 5. The drive control unit 5 includes a current detector 51, a forward rotation driver 52, and a reverse rotation driver 53. The drive control unit 5 outputs a drive command to the motor 4 from the forward drive 52 when rotating the rotary shaft 22 in the forward direction, and outputs a drive command to the motor 4 from the reverse drive 53 when rotating in the reverse direction. To do.

  The drive control unit 5 controls the rotation direction of the rotating shaft 22 at regular time intervals and according to the rotational driving load of the rotating shaft 22 applied to the motor 4. The motor 4 supplies a current value corresponding to a load (torque) applied to the rotational drive of the rotary shaft 22 to the drive control unit 5. For example, if the objects to be processed 24 are gathered at a specific location, the load applied to the rotational drive increases, so that the current value supplied to the drive control unit 5 increases.

  The drive control unit 5 detects a current value in the current detector 51. The current detector 51 stops the motor 4 when the detected current value exceeds a preset value, and outputs a drive command for rotation in the direction opposite to the current rotation direction to the motor 4. That is, if it is currently rotating in the forward direction, a stop command is output to the forward drive 52 and a drive command is output to the reverse drive 53. If it is rotating in the reverse direction, a stop command is output to the reverse drive 53 and a drive command is output to the forward drive 52.

  The forward drive 52 or the reverse drive 53 that has received the command outputs a drive command to the motor 4. The motor 4 rotates the rotating shaft 22 in response to a command from the reverse rotation driver 53 or the forward rotation driver 52. Thus, by changing the direction in which the rotating shaft 22 is rotated according to the current value corresponding to the load applied to the rotational drive, the workpiece 24 is efficiently stirred and the motor 4 detects an excessive load. Thus, it is possible to prevent an abnormal stop and continue the processing.

  FIG. 3 is a partially broken front view of the garbage disposal apparatus 100. The motor 4 transmits a rotational force to the rotary shaft 22 via the chain sprocket mechanism 24. In FIG. 3, six stirring blades 21 are attached to the rotating shaft 22. Each stirring blade 21 has a bar 21a extending in the direction perpendicular to the rotation shaft 22 and a plate 21b fixed to the tip of the bar 21a. Adjacent blade rods are attached to the rotary shaft 22 so as to form an angle of 90 degrees with each other.

  4 (a) and 4 (b) are front views of the rotating shaft 22 when all the stirring blades 21 are virtually arranged in front. As shown in the figure, the rotating shaft 22 extends in a substantially horizontal direction, and the stirring blade 21 is attached to the rotating shaft 22 so as to be inclined. The inclination of the stirring blade 21 on one end side of the rotating shaft 22 with respect to the rotating shaft 22 is arranged to be opposite to the inclination of the stirring blade 21 on the other end side of the rotating shaft 22 with respect to the rotating shaft 22. Preferably, the inclination angle of the stirring blade 21 with respect to the rotation shaft 22 is the same on one end side or the other end side.

  As shown in FIG. 4A, when the rotating shaft 22 rotates in the forward direction, the workpiece 24 is moved by the stirring blade 21 toward the central portion of the rotating shaft 22, that is, in the central portion of the fermenter 2. On the other hand, as shown in FIG. 4B, when the rotary shaft 22 rotates in the reverse direction, the workpiece 24 moves to the direction away from the central portion of the rotary shaft 22, that is, to the side of the fermenter 2. By repeating forward and reverse rotations of the motor 4 at regular time intervals, the object to be processed 24 repeats aggregation and discreteness inside the fermenter 2, and thus can be efficiently stirred.

  5 and 6 are a partially broken side view and a partially broken back view of the garbage disposal apparatus 100, respectively. As shown in FIG. 6, the high-temperature air generation unit 1 includes a blower fan 11, a heater 12, a high-temperature air input port 13, an air preheater 14, an exhaust port 15, and piping that connects them. The blower fan 11 takes in air from the outside and supplies it to the heater 12. The heater 12 heats the supplied air to a high temperature and supplies it to the fermenter 2 from the high temperature air inlet 13. The high-temperature air supplied to the fermenter 2 is exhausted from the exhaust port 15, and after the residual heat is removed by the air preheater 14, the hot air is discharged outside the apparatus through the dust collector 3.

  FIG. 7 is a cross-sectional view of the dust collector 3. As shown in the figure, the dust collector 3 includes a baffle plate 31 and a filter 32. The baffle plate 31 is a stainless steel air-impermeable plate formed in a substantially conical shape. The filter 32 is a filter having a fine mesh structure made of stainless steel. The baffle plate 31 may have a shape other than the conical shape. The air discharged from the exhaust port 15 flows into the dust collector 3 at high speed via the pipe, and collides with the baffle plate 31 to change the direction of the airflow. At this time, relatively large dust contained in the inflowing air collides with the baffle plate 31 and falls. Therefore, relatively large dust is removed from the air. Thereafter, the air is decelerated in the dust collector 3, and further finer dust is removed by passing through the filter 32. The air from which fine dust has been removed by the filter 32 is discharged out of the apparatus as clean air.

Next, the operation will be described.
The user opens the garbage input door 102 and inputs the garbage containing the moisture adjusting agent and the microorganisms into the fermenter 2. After the garbage is input, the garbage input door 102 is closed and the automatic start is selected from the operation panel 101. The garbage disposal apparatus 100 starts operation in response to a user operation. First, the reverse drive 53 of the drive control unit 5 outputs a drive command to the motor 4. The motor 4 rotates in reverse in response to the command, and the rotational force is transmitted via the chain sprocket 24 so that the rotating shaft 22 also rotates in the reverse direction. Accordingly, the stirring blade 21 also rotates in the reverse direction.

  Garbage thrown into the fermenter 2 is dispersed from the center to the end by the reverse rotation of the stirring blade 21. After a certain period of time, the reverse drive unit 53 stops the drive command. Along with this, the motor 4 also stops rotating. Subsequently, the forward rotation driver 52 outputs a drive command to the motor 4, and the motor 4 starts a forward rotation operation in response to the command. Along with this, the rotating shaft 22 and the stirring blade 21 also rotate forward. When the stirring blade 21 rotates in the forward direction, the garbage thrown into the fermenter 2 gathers from the end of the fermenter 2 toward the center. As described above, the normal rotation operation and the reverse rotation operation of the rotating shaft 22 are repeated for a certain period of time under the control of the drive control unit 5, and the garbage is stirred to make it uniform.

  Then, in order to promote fermentation of garbage, the high temperature air production | generation part 1 heats air, makes it high temperature, and supplies it to the fermenter 2. FIG. The high-temperature air generator 1 takes in air from the blower fan and supplies it to the heater 12. The heater 12 heats the supplied air to a high temperature and supplies it to the fermenter 2 from the high temperature air inlet 13. The high-temperature air supplied to the fermenter 2 heats the garbage, and is then discharged out of the apparatus through the air outlet 15 and the dust collector 3 from the exhaust port 15.

  When the fermentation drying process of the garbage is completed, the user opens the discharge door 103 and opens the discharge port 23 provided in the central portion of the fermenter 2. Subsequently, when the user selects the normal rotation drive by the operation panel 101, the stirring blade 21 rotates in the normal direction, and the food waste that has been subjected to the fermentation and drying process is collected at the center. At this time, the user can take out the treated garbage from the discharge port 23.

  As described above, according to the first embodiment, the stirring blade 21 is attached to be inclined to the rotating shaft 22 extending in the substantially horizontal direction, and the stirring blade 21 is inclined with respect to the rotating shaft 22 on one end side of the rotating shaft 22. Is arranged so as to be opposite to the inclination of the stirring blade 21 with respect to the rotation shaft 22 at the other end side, and the rotation direction of the rotation shaft 22 is rotated by the drive control unit 5 according to the load applied to the rotation. Since it is made to change, the stirring efficiency of a to-be-processed object improves, it becomes easy to contact high temperature air, and the effect that the efficiency of fermentation and drying can be improved is acquired.

  Moreover, it can discharge | emit from the discharge port 23 provided in the center part of the fermenter 2 by rotating the rotating shaft 22 to a normal direction by the drive control part 5, and moving the to-be-processed object 24 to the center part of the fermenter 2. As a result, it is possible to easily discharge the object to be processed at the center of the apparatus, and it is possible to obtain an effect that a space for the discharge work is not necessary on the side surface of the apparatus.

  Further, the dust collector 3 collides with the air discharged from the exhaust port 15 to remove the air-impermeable baffle plate 31 for removing relatively large dust and fine powder that could not be removed by the baffle plate 31. Since the filter 32 is provided, it is possible to prevent the deodorizer from deteriorating due to dust mixing even when a deodorizer or the like is installed outside the apparatus, and to disperse dust into the environment. The effect of disappearing is obtained.

It is a perspective view of the garbage processing apparatus by Embodiment 1 of this invention. It is a schematic diagram which shows the internal structure of the garbage processing apparatus by the same Embodiment 1. It is a partially broken front view of the garbage processing apparatus by Embodiment 1 of this invention. (A), (b) is a front view of the rotating shaft when all the stirring blades are virtually arranged in front. It is a partially broken side view of the garbage processing apparatus by Embodiment 1. It is a partially broken rear view of the garbage processing apparatus by Embodiment 1. It is sectional drawing of the dust collector of the garbage processing apparatus by the same Embodiment 1. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 High temperature air production | generation part 2 Fermenter 3 Dust collector 4 Motor 5 Drive control part 11 Blower fan 12 Heater 13 Hot air inlet 14 Air preheater 15 Exhaust port 21 Stirring blade 21a Bar 21b Plate 22 Rotating shaft 23 Exhaust port 24 Processed object 31 Baffle plate 32 Filter 51 Current detector 52 Forward rotation drive 53 Reverse rotation drive 100 Garbage disposal device 101 Operation panel 102 Garbage input door 103 Discharge door

Claims (3)

In a garbage disposal device that stirs the object to be treated in the treatment tank and decomposes it using heated air.
A rotatable rotating shaft that supports a stirring blade provided inside the processing tank;
A drive control unit for driving the rotating shaft,
The drive control unit detects a load for driving the rotary shaft, and outputs a drive command to rotate the rotary shaft in the reverse direction when a load of a predetermined amount or more is detected. Garbage disposal equipment.   The rotating shaft extends in a substantially horizontal direction, and the stirring blade is attached to be inclined with respect to the rotating shaft, and the inclination of the stirring blade with respect to the rotating shaft on one end side of the rotating shaft is the inclination of the rotating shaft. 2. The garbage processing apparatus according to claim 1, wherein the other end side is opposite to the inclination of the stirring blade with respect to the rotation axis.   Air impervious baffle plates arranged so that dust contained in air falls while air discharged from the treatment tank collides and changes the direction of air flow, and fine dust that cannot be removed by the baffle plates The garbage disposal apparatus according to claim 1 or 2, further comprising an air discharge unit having a filter for removing.

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