JP2007069085A - Garbage treatment machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a garbage treatment machine capable of preventing the occurrence of the clogging of the filter, which covers the overflow port of treated water opened to a treatment tank to reduce the load of maintenance work opened including the replacement and cleaning the filter. <P>SOLUTION: A shower pipe 58, which is connected to a make-up tank 5 and has a showering pump 56 and a motor-operated valve 57 on its way, is extended to the inside of the drain chamber 12 on the outside of the filter 11 for covering the overflow port 10 opened to the peripheral wall of the treatment tank 1 and the water, which is jetted from the shower head 59 provided to the end part of the shower pipe 58, is sprayed on one side of the filter 11 to wash off the captured substance bonded to one side of the filter 11. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a garbage processing machine that decomposes raw garbage thrown into a treatment tank by the activity of microorganisms that live in the treated water inside the treatment tank.

  In recent years, various garbage processing machines have been proposed for the purpose of processing garbage generated in kitchens of ordinary households and restaurants. As one of this kind of garbage processing machines, microorganisms that inhabit the treated water by introducing the garbage into the treatment tank storing an appropriate amount of treated water and stirring with the treated water by the operation of the stirring means There is a wet-type garbage processing machine configured to be decomposed by the activity of (food fermentation bacteria, yeast, etc.) (see, for example, Patent Document 1).

  In addition, it is known that the treatment capacity can be improved by, for example, densely floating a bio-base material configured as a porous foam in the treated water inside the treatment tank. This bio-base material has an effect of securing a habitat for the microorganism, retaining raw garbage put into the treatment tank, and increasing the chance of contact with the microorganism.

Also, the treated water inside the treatment tank is introduced together with water generated by the decomposition process of garbage, water that is appropriately replenished to increase the activity of microorganisms, and also from the disposer that pretreats garbage, along with crushed garbage. Therefore, an overflow port is opened in the peripheral wall of the treatment tank so that excess treated water exceeding a predetermined water level is drained. Further, a net-like filter is attached to the overflow port, and only clean water that has passed through the filter is drained and discharged into sewage after simple post-treatment.
JP 2002-336830 A

  However, in the wet-type garbage disposal machine configured as described above, many foreign substances including untreated garbage are mixed in the treated water inside the treatment tank, and these foreign substances cover the overflow port. As a result of the trapping by the filter, the filter is clogged at an early stage, and there is a problem that frequent maintenance work including replacement and cleaning of the filter is forced.

  This problem can be mitigated by using coarse filters, but in this case the post-treatment burden of overflow water to meet the BOD (Biochemical Oxygen Demand) criteria required for sewage effluent. This causes a problem of increasing the number.

  The present invention has been made in view of such circumstances, and water is sprayed onto one or both sides of the filter covering the overflow port to wash away the trapped matter and prevent the filter from being clogged. And it aims at providing the garbage processing machine which can reduce the burden of the maintenance work including cleaning.

  In addition, the water flow generated by the agitation pump is used to agitate the treated water to wash away the trapped matter on the inner surface of the filter that covers the overflow port, preventing clogging of the filter, and maintenance including filter replacement and cleaning. It aims at providing the garbage processing machine which can reduce the burden of work.

  In the garbage processing machine according to the present invention, the garbage introduced into the treatment tank for storing treated water is decomposed by the activity of microorganisms living in the treated water, while the excess of the treated water is In the garbage processing machine configured to drain through an overflow port established by covering the peripheral wall of the treatment tank with a filter, cleaning means for spraying water onto one or both surfaces of the filter and cleaning the one or both surfaces It is characterized by providing.

  In the present invention, water is sprayed on one or both sides of the filter covering the overflow port to wash away foreign matter captured by the filter, thereby preventing the filter from being clogged.

  In addition, the garbage processing machine according to the present invention decomposes the garbage introduced into the treatment tank storing the treated water by the activity of microorganisms that live in the treated water, while the excess of the treated water is In the garbage processing machine designed to drain through an overflow port established by covering the peripheral wall of the treatment tank with a filter, the garbage is disposed inside the treatment tank, and the treatment water is supplied and discharged to generate a water flow. A stirring pump for stirring the treated water, and a cleaning means for cleaning the one surface by flowing a water flow generated by the stirring pump along one surface of the filter facing the inside of the processing tank. Further, the cleaning means further includes a control means for increasing the rotation speed of the stirring pump for a predetermined time every predetermined time in order to strengthen the water flow.

  In the present invention, the agitation pump inside the treatment tank causes the water flow generated for the agitation of the treated water to collide with the inner peripheral surface of the treatment tank at a position near the filter covering the overflow port, The inner surface of the filter is washed using the rise of the water surface of the treated water due to the collision. Furthermore, the rotational speed of the agitation pump is increased by a predetermined time every predetermined time, the water flow generated by the agitation pump is strengthened, and the swell is caused by the collision to clean the inner surface of the filter over a wide range. To do.

  In the garbage processing machine according to the present invention, water is sprayed on one or both surfaces of the filter covering the overflow port, and the trapped matter that causes clogging is washed away, so that stable operation can be continued for a long time. This can greatly reduce the burden of maintenance work including clogged filter replacement and cleaning.

  Further, in the garbage processing machine according to the present invention, the water flow generated by the stirring pump that stirs the treated water is caused to flow along the inner surface of the filter that covers the overflow port, so that the trapped matter that causes clogging is washed away. The clogging of the filter can be effectively prevented, and further, the rotation speed of the agitation pump is increased every predetermined time, so that the inner surface of the filter can be washed extensively by strengthening the water flow. The present invention has excellent effects, such as being able to continue stable operation over a long period of time and greatly reduce the burden of maintenance work including clogged filter replacement and cleaning.

  Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof. FIG. 1 is a longitudinal sectional view schematically showing a configuration of a garbage disposal apparatus according to the present invention. In the figure, reference numeral 1 denotes a processing tank, which is configured as a pot-shaped hollow container with a reduced diameter at the top.

  In the treatment tank 1, treated water 2 is stored with a predetermined depth, and the bio-substrates 3, 3... Are suspended in the treated water 2. These bio-substrates 3, 3... Are configured as porous foams to provide a habitat for microorganisms to be introduced as described later, and floated so as to cover the water surface of the treated water 2 closely. is there.

  An overflow port 10 is opened at one place in the circumferential direction on the peripheral wall of the treatment tank 1, and the overflow port 10 is covered with a filter 11 using a mesh plate. A drainage chamber 12 is provided outside the processing tank 1 so as to face the opening position of the overflow port 10, and a drainage pipe 13 for discharging to sewage (not shown) is connected to the drainage chamber 12.

  The overflow port 10 is provided to discharge the treated water 2 exceeding the opening position thereof to the drainage chamber 12 and keep the water level of the treated water 2 stored in the treatment tank 1 constant. The filter 11 covering the overflow port 10 acts to trap foreign matter contained in the treated water and clean the drainage into the drainage chamber 12. The drainage in the drainage chamber 12 is discharged into the sewage through the drainpipe 13, but it is desirable to further purify it before passing through a water treatment tank (not shown) such as an aeration tank.

  Further, one end of a transfer pipe 14 is connected to the circumferential wall of the processing tank 1 at a circumferential position facing the overflow port 10 and above the overflow port 10. The other end of the transport pipe 14 is connected to a disposer (not shown), and the garbage inside the processing tank 1 is crushed by a known operation of the disposer and transported through the transport pipe 14 together with water for transport. Is configured to be introduced. In addition, in the upper part of the processing tank 1, there is provided an inlet for raw garbage covered by a cover plate 15 so as to be freely opened and closed, and it is also possible to receive raw garbage introduced directly from the inlet. This introduction is performed only in a state where introduction by the transfer pipe 14 cannot be performed, such as when the disposer is out of order.

  On the other hand, two stirring pumps 4 and 4 using submersible pumps are installed on the bottom plate inside the processing tank 1. These agitation pumps 4 and 4 are each provided with a suction port (not shown) that opens to the lower surface separated from the bottom plate by an appropriate length, and are provided with discharge pipes 40 and 40 that extend upward. Suction is performed from the suction port and discharged from the upper ends of the respective discharge pipes 40 and 40.

  FIG. 2 is a transverse cross-sectional view taken along the line II-II in FIG. 1, and shows a planar arrangement of the agitation pumps 4 and 4 inside the processing tank 1. As shown in the figure, the overflow port 10 established in the peripheral wall of the treatment tank 1 has an appropriate width in the circumferential direction, and the agitation pumps 4 and 4 are arranged in the treatment tank 1 passing through the center of the overflow port 10. They are arranged on both sides of the center line. The discharge pipes 40 and 40 of the agitation pumps 4 and 4 arranged in this way are bent in the same direction in the circumferential direction of the treatment tank 1, and as shown in FIG. Located below the surface of the water.

  Therefore, when the agitation pumps 4 and 4 are driven, water flows are generated in the treated water 2 by the action of the discharged water from the tips of the respective discharge pipes 40 and 40, and these water flows collide with the inner surface of the treatment tank 1. As shown by white arrows in FIG. 2, a stirring flow that rotates clockwise is generated inside the processing tank 1. The garbage introduced as described above is agitated by the action of the agitation flow together with the treated water 2 stored in the treatment tank 1 and the bio-base materials 3, 3... Floating on the surface of the treated water 2.

  Further, the discharge pipes 40, 40 of the agitation pumps 4, 4 are provided with discharge ports that open upward as shown in FIG. 1, and when the discharge flow from these collides with the inner surface of the processing tank 1, the vicinity of the collision position. The surface of the treated water 2 rises. Here, the discharge pipe 40 of one stirring pump 4 (the right stirring pump 4 in FIG. 2) is directed toward the end of the overflow port 10 on one side in the width direction (upstream side of the stirring flow). The rise of the water surface of the treated water 2 due to the discharge water flow from 40 occurs at the upstream end of the stirring flow at the overflow port 10.

  FIG. 3 is an explanatory view of the swell generated on the surface of the treated water by the stirring flow. The collision of the discharge flow indicated by the white arrow in the figure causes the surface of the treated water 2 on one side of the overflow port 10. The generated swell 2a moves toward the other side along the inner surface of the filter 11 (the surface facing the inner side of the processing tank 1) covering the overflow port 10 by the action of the stirring flow in the direction indicated by the arrow in the figure. As a result, the foreign matter adhering to the inner surface can be washed away.

  Since the height of the swell 2a increases as the discharge amount of the agitation pump 4 increases, the operation of the agitation pump 4 having the discharge pipe 40 toward the overflow port 10 is increased, for example, at a predetermined speed. By carrying out for a certain period of time and strengthening the discharge water flow by the stirring pump 4 to produce a high swell 2a, the inner surface of the filter 11 can be periodically cleaned and kept clean. The operation of the agitation pump 4 as described above is performed by the control operation of the control means for controlling the operation of the garbage disposal machine.

  In addition, the garbage processing machine according to the present invention includes a makeup water tank 5 fixedly supported on the top plate of the processing tank 1. The makeup water tank 5 is connected to a water pipe (not shown) via a known ball tap 50, and the makeup water 51 supplied from the water pipe is substantially constant inside the makeup water tank 5 by the operation of the ball tap 50. The water level is maintained and stored. A heater 52 is disposed at the bottom of the make-up water tank 5, and the water stored in the make-up water tank 5 is maintained at a predetermined temperature by heating the heater 52.

  Such a makeup water tank 5 is connected to the inside of the treatment tank 1 through a water supply pipe 54 provided with an electric valve 53 in the middle, and the stored water inside the makeup water tank 5 is periodically executed, for example. When the motor-operated valve 54 is opened, the processing tank 1 is replenished through the water supply pipe 54.

  In addition, a shower pipe 58 provided with a showering pump 56 and an electric valve 57 in the middle is connected to the makeup water tank 5. The shower pipe 58 faces the opening position of the overflow port 10 and extends into the drainage chamber 12 provided outside the treatment tank 1, and a filter 11 covering the overflow port 10 is provided at the extended end. A shower head 59 is attached to the outer surface of the camera.

  The extension of the shower tube 58 into the drain chamber 12 is also illustrated in FIG. As shown in the figure, the drainage chamber 12 is provided over the entire width outside the overflow port 10. The shower pipe 58 extends from one side in the width direction into the drain chamber 12, and the shower head 59 at the tip of the shower pipe 58 is connected to the outer surface of the filter 11 covering the overflow port 10 (on the drain chamber 12 side). Are arranged in parallel so as to face a plurality of places (two places in the figure) in the width direction.

  With the above configuration, when the showering pump 56 is driven and the motor-operated valve 57 is opened, the stored water in the makeup water tank 5 becomes high-pressure water by the operation of the showering pump 56, and the interior of the shower pipe 58 And sprayed from the shower heads 59 and 59 at the tip of the shower tube 58 and sprayed over the entire outer surface of the filter 11 facing each other. As a result, foreign matter adhering to the outer surface of the filter 11 can be washed away and kept clean. The driving of the showering pump 56 and the opening of the motor-operated valve 57 for the cleaning are also periodically performed as in the case of cleaning the inner surface by the stirring flow.

  The cleaning of the filter 11 by such water spraying is performed by, for example, extending the shower tube 58 inside the processing tank 1 and providing the shower head 59 at the extended end to the inner surface of the filter 11. However, it can be carried out in exactly the same manner, and the cleaning effect can be enhanced by carrying out the cleaning together with the cleaning of the inner surface by the stirring flow.

  The garbage processing machine according to the present invention further includes a bio tank 6 and an air pump 7. The bio tank 6 is connected to the inside of the processing tank 1 by a supply pipe 61 provided with a bio pump 60 in the middle. The bio-tank 6 stores a bio-fluid containing a large number of microorganisms having the ability to decompose organic substances such as food fermenting bacteria and yeasts. It is introduced into the processing tank 1 through the supply pipe 61 by the operation of the pump 60.

  The air pump 7 is a pump that performs an operation of sucking outside air and sending it out into an air supply pipe 70 extended in the processing tank 1. The air supply pipe 70 extends to the bottom of the processing tank 1 and is connected to the aeration pipe 71 along the bottom surface. The outside air sucked by the operation of the air pump 7 is a large number of small air provided in the aeration pipe 71. It is aerated in the treated water 2 through the holes.

  The garbage processing machine configured as described above is used in a state in which the treated water 2 having a predetermined water level is stored in the treatment tank 1 in advance, and the bio-substrates 3, 3,. . When an operation switch (not shown) is turned on in this state, a fixed amount of bio-liquid is introduced from the bio-tank 6, the agitation pumps 4, 4 are driven, and the treated water 2 and the bio-base materials 3, 3,. Ready for operation.

  As a result of the above operation preparation operation, the microorganisms that decompose the organic substances contained in the bio-liquid are introduced into the treatment tank 1 and are agitated together with the treated water 2 and the bio-base materials 3, 3. The microorganisms are inhabited in an evenly dispersed state using the bio-base materials 3, 3... Made of porous foam.

  Thereafter, when the garbage is introduced through the transport pipe 14, the garbage processor starts the treatment operation, and the treated water 2 is periodically stirred by the operation of the stirring pumps 4 and 4 and introduced into the treatment tank 1. The treated garbage is taken into the treated water 2 and is decomposed into water and carbon dioxide gas and disappears by the activity of microorganisms in the treated water 2.

  During such a treatment operation, the replenishment of replenishment water 51 from the replenishment water tank 5 and the operation of the air pump 7 are performed for the purpose of increasing the activity of microorganisms in the treated water 2 and maintaining the decomposition treatment capacity of the garbage. Aeration is also performed every predetermined time. In addition, during the above processing operation, the introduction of the bio liquid from the bio tank 6 is also periodically performed. However, it is sufficient that the introduction is performed with a long period of about every 6 hours, for example.

  During the above treatment operation, the level of the treated water 2 inside the treatment tank 1 is determined by the decomposition of the water introduced together with the garbage through the transfer pipe 14, the makeup water 51 supplemented from the makeup water tank 5, and the garbage. Although it rises due to the generated water, this rise is discharged to the drainage chamber 12 through the overflow port 10 and discharged into the sewage through the drainage pipe 13 as described above.

  At this time, the filter 11 that covers the overflow port 10 captures foreign matter such as untreated raw garbage mixed in the treated water 2 and cleans the waste water. May cause clogging. In the garbage processing machine according to the present invention, as described above, the inner surface of the filter 11 is caused by the stirring flow generated by the stirring pump 4, and the water sprayed from the shower heads 59, 59 at the tip of the shower pipe 58 is Since the outer surfaces (or both surfaces) are respectively cleaned, it is possible to effectively prevent clogging of the filter 11 and to continue stable operation over a long period of time. Maintenance including replacement and cleaning of the filter 11 The labor of the work can be greatly reduced.

It is a longitudinal section showing the composition of the garbage processing machine concerning the present invention typically. It is a cross-sectional view by the II-II line of FIG. It is explanatory drawing of an effect | action of the swell produced on the water surface of treated water by the stirring flow.

Explanation of symbols

1 treatment tank 2 treated water 4 stirring pump 5 makeup water tank
10 Overflow port
11 Filter
56 showering pump
57 Motorized valve
58 shower tube
59 shower head

Claims (3)

  The garbage introduced into the treatment tank for storing treated water is decomposed by the activity of microorganisms that live in the treated water, and the excess of the treated water is covered with a filter on the peripheral wall of the treatment tank. A garbage disposal machine configured to discharge water through an overflow port, wherein the garbage disposal apparatus includes a cleaning unit that sprays water onto one or both surfaces of the filter and cleans the one or both surfaces. . The garbage introduced into the treatment tank for storing treated water is decomposed by the activity of microorganisms that live in the treated water, and the excess of the treated water is covered with a filter on the peripheral wall of the treatment tank. A garbage disposal machine configured to drain through the overflow port, and a stirring pump disposed inside the processing tank, supplying and discharging the treated water to generate a water flow, and stirring the treated water; ,
A garbage processing machine, comprising: a cleaning unit configured to flow a water flow generated by the agitation pump along one surface of the filter facing the inside of the processing tank and to clean the one surface.   The garbage processing machine according to claim 2, wherein the cleaning means includes a control means for increasing the rotation speed of the stirring pump for a predetermined time every predetermined time so as to strengthen the water flow.

Images