JPH0824700A - Garbage disposer - Google Patents

Abstract

PURPOSE:To provide a garbage disposer which can crush and discharge garbage and the like without restrictions on its setting site, avoid the blocking in a flow path generated by the accumulation of garbage and the like and release the locking in the case where foreign matters are bitten in and the disposer is stopped at the time of crushing. CONSTITUTION:The garbage disposer 1 comprises a crushing mechanism section 1 for crushing garbage 21 and the like, a non-blocking type compression transfer device 7' for sucking the crushed garbage 21 and the like together with water content from the crushing mechanism section 1 and discharging from a discharge line section 9 and a reversible motor 5' for driving in the two forward and reverse rotating directions, and a gas-liquid separation section 17' is formed on a connecting flow path section 17, and an impeller 18 with a blade facing backward is provided in the non-blocking type compression transfer device 7'.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a kitchen waste processing machine capable of crushing kitchen garbage generated in a kitchen and discharging it to sewers.

[0002]

2. Description of the Related Art Garbage, etc., which is generated daily in kitchens such as general households and restaurants, when left unattended, causes bad odor due to decay and breeds pests and the like, thereby obstructing the sanitary environment of the kitchen. Therefore, in Western countries, a kitchen waste disposer (disposer) is installed at the drainage port of the sink, and the kitchen waste that is directly thrown into the drainage port is crushed by the operation of this kitchen waste disposal machine, and then drained together with the drainage pipe to the sewer. It is common practice to discharge it.

However, in Japan, drainage pipes and sewers are blocked by cholesterol-like foreign substances and the load on the sewage treatment plant increases if the crushed kitchen waste is flown as it is, and also in rivers and lakes. For the administrative reason that the amount of suspended solids (SS) and biochemical oxygen demand (BOD) in wastewater is strictly regulated in order to prevent the progress of pollution and eutrophication, etc. It is difficult to discharge the kitchen waste in slurry form directly from the kitchen crusher to the sewer.

Since the kitchen waste cannot be discharged into the sewer, the conventional kitchen waste treatment in Japan is to collect the kitchen waste with a net cage installed at the drainage port of the sink or a corner corner cage placed at the corner of the sink. The procedure is to collect this and dispose of it together with other waste. However, such a garbage treatment method has a drawback that a kitchen user is required to bear a great amount of labor in order to maintain a sanitary environment in the kitchen.

Therefore, as one means for solving these problems, a technique of a crushing / drainage pumping device (Japanese Utility Model Publication No. 63-91566) has been proposed. This conventional technique will be described below. FIG. 3 is a cross-sectional view showing a conventional crushing / drainage pumping device for garbage disposal. In FIG. 3, reference numeral 1 is a crushing mechanism portion for processing garbage and the like. The crushing mechanism unit 1 is composed of a closed container, and includes a case 1 ′, a garbage equal pressure feed chamber 2 provided in the case 1 ′, a strainer 3 provided on an upper portion of the garbage equal pressure feed chamber 2, and a strainer 3. It has the inlet channel part 4 connected. In addition, the crushing mechanism section 1 is provided with a kitchen waste equalizing chamber 2
Of the motor 5, a pump 7 connected to one of the output shafts of the motor 5 and driven to rotate, and a pump housed in the strainer 3 and connected to the other output shaft of the motor 5 to rotate. A driven cutter (crushing means) 6 is provided.

A water passage hole 8 is provided at the bottom of the pump 7, and a discharge passage portion 9 is connected to the water passage hole 8. Therefore, the crushing mechanism unit 1 crushes the solid matter, kitchen waste, and the like contained in the miscellaneous wastewater that has flowed into the crushing mechanism unit 1 from the inlet flow path unit 4 with the cutter 6 to liquefy it into a slurry. After the kitchen waste that has been crushed into a slurry is passed through the strainer 3 together with water, the case 1 ′ and the kitchen waste equal pressure feed chamber 2 are allowed to flow down, and the pump 7 is used to pass this through the water passage hole in the lower part of the kitchen waste equal pressure feed chamber 2. After being sucked from No. 8, it is forcibly fed to the discharge passage section 9.

This conventional crushing / drainage pumping device can slurry solids, kitchen waste, etc. contained in miscellaneous drainage generated in a sink of a kitchen or the like, and further forcefully pumps this to enable smooth post-treatment. It is possible to deal flexibly with the diversification of the layout around the water, because it is not restricted by the topographical constraints such as slope, distance, pipe diameter, etc.

In addition to this, as a conventional technique, a garbage treatment device with a metal detection device (Japanese Utility Model Laid-Open No. 4-45550) has been proposed.

[0009]

Considering that there are strict regulations on wastewater in Japan, it is necessary to sufficiently perform post-treatments such as kitchen waste after crushing, and it is also necessary to improve the quality of the garbage disposal machine itself. Performance improvements need to be achieved. At the same time, hygiene and environmental aspects such as safety, durability, and ease of use must be pursued.

However, the above-mentioned conventional crushing / drainage pressure-feeding device (1) easily mixes air during drainage pressure-feeding,
Therefore, the pumping ability gradually declines, and sediment such as kitchen waste easily occurs,
(2) Since the crushing means is only a cutter, it is difficult to crush relatively hard kitchen waste, and (3) there is a problem that foreign matter is apt to be caught in the strainer portion structurally.

Further, the conventional garbage disposal device with a metal detection device has the following problems: (1) It is difficult to detect a hard foreign substance other than metal because it uses a metal detection sensor, and (2) a mechanism for control is provided. It is complicated and expensive, and (3) there is a problem regarding reliability that detection sensitivity becomes unstable and characteristics deteriorate when used for a long period of time in high humidity.

Therefore, the present invention solves these problems of the prior art, and is capable of crushing and discharging garbage etc. without being restricted by the place of installation, and by the air mixed in the slurry of crushed garbage etc. There is no interruption in the pumping of kitchen waste, etc., and it is possible to avoid clogging in the flow path due to the accumulation of kitchen waste etc., and it is possible to release the lock if foreign matter is caught during crushing and stopped. It is an object to provide a kitchen waste processing machine that can do it.

[0013]

The kitchen garbage processing machine of the present invention comprises:
A crushing mechanism part for crushing garbage etc., a non-blocking type pressure feeding device for sucking the crushed garbage etc. together with water from the crushing mechanism part through the connection flow path part and discharging it from the discharge path part, the crushing mechanism part and non-blocking An impeller provided with a reversible motor capable of driving the die pressure feeding device in two rotation directions, a gas-liquid separating portion is provided in the connection flow path portion, and a rearward-facing blade is formed in the non-blocking type pressure feeding device. Is provided.

Further, it is desirable that the rotation direction of the reversible motor be switched at regular intervals. Further, the crushing mechanism section is provided with a detection means for detecting that food waste has been bitten, and a motor control means for reversing the reversible motor in response to a detection signal from the detection means, and for stopping the reversible motor when reversing is impossible. desirable.

[0015]

Since the kitchen waste processing machine of the present invention is provided with the gas-liquid separation section in the connection flow path section, air mixed in the slurry containing the crushed kitchen waste can be gas-liquid separated. Further, since the non-blocking type pumping device is provided with an impeller having rearward-facing blades and the reversible motor rotates the non-blocking type pumping device in the forward and reverse directions, the non-blocking type pumping device does not rotate at the time of normal rotation. There is a difference in the pumping capacity between the reverse rotation and the low flow velocity at the reverse rotation in which the pumping performance is lowered, whereby the air can be effectively separated from the slurry in the gas-liquid separator.

Further, since the rotation direction of the reversible motor can be switched at regular intervals, it is possible to perform efficient garbage crushing without causing uneven wear in one direction, and to interrupt the pressure feeding due to the mixed air. It is possible to discharge crushed kitchen waste etc. It is possible to effectively transfer kitchen waste and the like and gas-liquid separation without impairing any functions.

Further, the crushing mechanism is provided with a detection means for detecting that food waste has been bitten, and a motor control means for reversing the reversible motor in response to a detection signal from the detection means, and for stopping the reversing motor when it cannot be reversed. Therefore, it is possible to release the locked state automatically.

[0018]

Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a schematic side cross-sectional view of a garbage processing machine according to an embodiment of the present invention. As shown in FIG. 1, the garbage treating machine of the present invention basically has a structure in which a crushing mechanism and a non-blocking type pressure feeding device are combined. 1 is a crushing mechanism part, 2'is a kitchen waste equal pressure feed port, 3 is a strainer. 5'is a reversible motor, 6 '
Is a shredder and 7'is a non-blocking type pressure feeding device. Also,
Reference numeral 8 is a water passage hole, and 9 is a discharge passage portion. 10 is a sink, 11
Is a sink stopper, and 12 is a sink flange. Further, 13 is a main body connecting rubber, 14 is a hopper, 15 is a flywheel, 16 is a hammer, 17 is a connection flow path section, 17 'is a gas-liquid separation section including a standing pipe provided in the connection flow path section 17, 18 Is an impeller (shown in FIG. 2) in which rearward facing blades are formed, and 19 is a control panel having a starter switch, a controller, memory means and the like built therein. Reference numeral 21 indicates kitchen waste and the like.
In the above description, the same reference numerals as those of the conventional example have the same basic operation and function, and thus the description thereof will be omitted.

The crushing mechanism portion 1 of the kitchen waste processing machine of this embodiment is
The flywheel 15, the hammer 16, and the shredder 6 ′ are provided, and these can rotate in both forward and reverse directions by rotating the reversible motor 5 ′ forward and backward. This is for the purpose of avoiding uneven wear of the shredder 6'and the hammer 16 if it continues to rotate only in one direction. At the same time, when foreign matter is caught and locked, the locked state can be avoided. It is possible. The forward and reverse rotation does not cause uneven wear and the like, and the locked state of the hammer 16 can be easily released by rotating the hammer 16 in the direction opposite to the biting direction. For this reason, the shredder 6'and the hammer 16 have symmetrical shapes with respect to the radial direction so as to allow rotation in both the forward and reverse directions.

The kitchen waste processing machine and the sink 10 are connected by the body connecting rubber 13 and the sink flange 12. The sink stopper 11 has a structure that allows miscellaneous drainage used in the sink 10 to pass therethrough, but has a structure that does not allow dishes such as spoons to pass through.

By the way, in this embodiment, the connection flow path portion 1
7 is provided with an upright pipe section, which is installed in a gas-liquid separating section 17 '.
And The crushed kitchen waste 21 or the like 21 slowly flows through the crushed garbage 21 so that the slurry is temporarily retained in the gas-liquid separation unit 17 'to separate air, and the non-blocking type pressure feeding device 7' Sucked by. The separated air is exhausted through the crushing mechanism 1. The configuration of the gas-liquid separation unit 17 'is not limited to the configuration of such a standing pipe portion, and a configuration in which an expanded portion is formed for more effective gas-liquid separation and an exhaust valve is attached thereto But it's okay.
This is because even if air or the like is mixed in the slurry containing the garbage 21 or the like, the air is separated and discharged from the exhaust valve as the flow velocity decreases in the gas-liquid separating section 17 '. The gas-liquid separating section 17 'including the standing pipe section of this embodiment has a simple structure and is easy to manufacture and assemble, and is one of the excellent configurations of the gas-liquid separating section 17'. When there is no exhaust valve, the separated air is exhausted from the upper end of the connection flow path portion 17 to the crushing mechanism portion 1 and further discharged from the sink 10 to the outside as described above. Gas-liquid separation unit 17 '
When an exhaust valve is provided on the exhaust valve, if a deodorizing mechanism is provided on the exhaust side of the exhaust valve, no bad odor is emitted and the usability is further improved.

By the way, the impeller 1 of the non-blocking type pressure feeding device 7 '
8 has rearward facing vanes as shown in FIG. FIG. 2 is a schematic side cross-sectional view of an impeller of a garbage disposal in one embodiment of the present invention. The rearward-facing blade is a blade whose blade has a substantially spiral shape at an angle so as to recede backward with respect to the rotation direction of the impeller. About 6
An inlet angle of about 0 ° to 90 ° is desirable. By setting the blade angle backwards in this way, it is possible to efficiently pump a large amount of slurry containing garbage 21 etc. during forward rotation, and when it reverses, this becomes a forward blade and reduces the pumping capacity. The non-blocking type pressure feeding device 7'has a characteristic that the pressure feeding ability is largely switched by switching between two normal and reverse rotation directions. Further, in this non-blocking type pressure feeding device 7 ', a gap between the impeller 18 and the casing is made relatively large so that solid matter and the like are prevented from being caught in this gap. It has a so-called non-blocking type or torque flow type pump configuration.

The operation of the non-blocking type pressure feeding device 7'is controlled by the control panel 1
The controller built in 9 carries out based on the procedure stored in the memory means. That is, the reversible motor 5'is driven in the forward direction for a certain period of time, then rotated in the opposite direction for a certain period of time, and this is repeated. At the same time, the hammer 16 of the crushing mechanism unit 1 is also switched and driven in the forward and reverse directions. By performing such an operation, the rotation direction of the impeller 18 is switched at regular intervals, and the pressure-feeding state of the non-blocking type pressure-feeding device 7'changes strongly and weakly. Since the pressure-feeding characteristics of the impeller 18 are changed in the reverse rotation as compared with the normal rotation, the pressure-feeding ability of the non-blocking type pressure-feeding device 7'will periodically decrease. In addition, the ability of the kitchen crusher does not change even if it is reversed.
The slurry containing the garbage 21 or the like that is discharged while being temporarily retained in the connection flow path portion 17 periodically has a long residence time, and thus the mixed air is separated by the gas-liquid separation portion 17 ′. It will be.

The operation of the garbage processing machine configured as described above will be described below. The wastewater and kitchen waste 21 generated in the sink 10 are sent to the crushing mechanism 1 from the inlet 20 along the arrow. 21 such as kitchen waste in the crushing mechanism section 1
When is stored, a command is sent from the control panel 19 to start energization, and the reversible motor 5'starts to rotate. The reversible motor 5'is provided with a hammer 16 and a flywheel 15,
Further, an impeller 18 having rearward facing blades is also provided, and all of them start to rotate at the same time. By rotating the hammer 16, the kitchen waste 21 and the like are crushed between the hammer 16 and the shredder 6 ′. The crushed kitchen waste 21 or the like becomes a slurry having a high relative viscosity, but it is suitable to supply the miscellaneous waste water stored in the hopper 14 or tap water in order to provide fluidity. . It is desirable to supply about five times as much water as kitchen waste 21. Such as kitchen waste 2
The slurry No. 1 is sucked from the crushing mechanism unit 1 by rotating the impeller 18 of the non-blocking type pressure feeding device 7 ′. When the impeller 18 rotates with the sink stopper 11 closed, the inside becomes a negative pressure state and the slurry is sucked, but in addition, the slurry itself is transferred by its own weight. Since the negative pressure acts, the slurry does not flow backward. It is also preferable that the impeller 18 rotates earlier than the flywheel 15 in order to secure a negative pressure.
When the slurry enters the connection flow path section 17, it is once accumulated in the gas-liquid separation section 17 '. Non-blocking type pressure feeding device 7 '
Sucks the slurry such as kitchen waste 21 in this state and discharges it to the outside through the discharge passage 9. By the way, when the non-blocking type pressure feeding device 7'suctions the accumulated slurry at a considerable pressure feeding speed, the air is discharged without sufficiently separating the air in the gas-liquid separation part 17 ', and this air gradually becomes impeller. It will collect in the center of 18. In this state, the non-blocking type pressure feeding device 7'is incapable of pressure feeding and enters an airlock state. The discharging action of the non-blocking type pressure feeding device 7'is stopped. However, in this embodiment, the reversible motor 5'is regularly reversed by the controller in the control panel 19 at regular intervals, so that sufficient time for gas-liquid separation is secured while the reversible motor 5'is reversed. And sufficient air separation can be achieved. Therefore, air can be continuously removed from the slurry without interrupting the pressure feeding, and highly efficient pressure feeding can be performed without impairing both the functions of pressure feeding and separation. The slurry such as kitchen waste 21 is discharged from the non-blocking type pressure feeding device 7 ′, and then discharged to the outside through the discharge path portion 9. The discharged slurry of kitchen waste 21 or the like is further transferred to a post-treatment device using aerobic microorganisms or the like and treated there. When the crushing process of the garbage 21 is completed, the impeller 18 continues to rotate for a predetermined time to discharge the garbage 21, and then stops.

Next, the case where the crushing mechanism 1 bites the garbage 21 will be described. When the bite occurs, the rotation detection sensor installed in the reversible motor 5'transmits a detection signal indicating that the reversible motor 5'is in a locked state to the controller. Based on this detection signal, the controller controls the reversible motor 5'to reversely rotate according to the procedure stored in the memory means. The same applies when a hard metal or the like is mixed. If the locked state is severe and the reversible motor 5'is not rotated in the reverse direction even if the reversible motor 5'is controlled to rotate in the reverse direction, the controller determines that the reversible motor 5'is in a state in which it cannot be reversed, that is, the reversible motor 5'is stopped. . As a result, the safety of the reversible motor 5'can be improved.

As described above, according to the present embodiment, the structure of the garbage processing machine can be simplified, and a small and lightweight garbage processing machine can be realized. Further, since the impeller having the rearward facing blades is provided, the kitchen waste 21 or the like 21 is deposited in the connection flow path portion 17 and further in the water passage hole 8 as compared with the conventional general natural flow-down type discharge method. Therefore, the problem of closing the inside of the pipe by the garbage 21 can be avoided.

[0027]

As is apparent from the above embodiments, according to the present invention, the air mixed in the slurry containing the crushed garbage can be separated into gas and liquid. Further, since the non-blocking type pumping device is provided with an impeller having rearward-facing blades and the reversible motor rotates the non-blocking type pumping device in the forward and reverse directions, the non-blocking type pumping device does not rotate at the time of normal rotation. It is possible to make a difference in the pumping ability between the reverse rotation and the reverse rotation when the pumping ability is lowered, so that the air can be effectively separated and the air lock of the non-blocking type pumping apparatus can be prevented.

Further, since the rotation direction of the reversible motor can be switched at regular time intervals, it is possible to perform efficient garbage crushing without causing uneven wear in one direction, and to interrupt the pumping due to the mixed air. It is possible to discharge crushed kitchen waste etc.

Further, since the crushing mechanism is provided with detection means for detecting that food waste has been caught, and motor control means for reversing the reversible motor in response to a detection signal from the detection means, and for stopping the reversing motor when it cannot be reversed. , It is possible to release the locked state automatically.

[Brief description of drawings]

FIG. 1 is a schematic side sectional view of a garbage processing machine according to an embodiment of the present invention.

FIG. 2 is a schematic side cross-sectional view of an impeller of a garbage processing machine according to an embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a conventional crushing / drainage pumping device for garbage treatment.

[Explanation of symbols]

 1 Grinding mechanism 1'Case 2 Waste / equal pressure feed chamber 2'Waste / equity pressure feed port 3 Strainer 4 Inlet flow passage 5 Motor 5'Reversible motor 6 Cutter 6'Shredder 7 Pump 7'Non-blocking type pressure feed device 8 Water passage hole 9 Discharge path part 10 Sink 11 Sink stopper 12 Sink flange 13 Body connection rubber 14 Hopper 15 Flywheel 16 Hammer 17 Connection flow path part 17 'Gas-liquid separation part 18 Impeller 19 Control panel 20 Input port 21 Kitchen waste etc.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shinsuke Shimomura 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (3)

[Claims] 1. A crushing mechanism section for crushing garbage etc., and a non-blocking type pressure feeding device for sucking the crushed kitchen waste etc. together with water from the crushing mechanism section via a connecting flow path section and discharging it from a discharge path section, Forward and reverse of the crushing mechanism section and the non-blocking type pressure feeding device 2
A reversible motor that can be driven in one rotation direction is provided, a gas-liquid separating section is provided in the connection flow path section, and an impeller having rearward facing blades is provided in the non-blocking type pressure feeding device. A kitchen garbage processing machine characterized by that. 2. The garbage disposal according to claim 1, wherein the rotation direction of the reversible motor is switched at regular intervals. 3. A reversing motor is detected by the detection means for detecting that garbage is bitten into the crushing mechanism, and the reversible motor is rotated in the reverse direction by the detection signal of the detection means. The garbage processing machine according to claim 1 or 2, further comprising a motor control means for stopping the operation.