JP2002273401A - Crushed organic waste transfer system and operating method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a crushed organic waste transfer system and an operating method thereof which prevents an odor generated by the decomposition of crushed organic waste which remains in a storage pit over a long term, the generation of a toxin and the clogging of a transfer pump due to sludge formation of the crushed organic waste in the storage pit of the crushed organic waste. SOLUTION: By combining a means of detecting the water level in the storage pit and a timer, the whole quantity or almost the whole quantity of the organic waste in the storage pit is allowed to be transferred.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an organic waste transfer system for crushing and transferring organic waste such as kitchen waste generated in homes and offices, and a method of operating the same.

[0002]

2. Description of the Related Art In an organic waste treatment system for processing crushed organic waste by crushing garbage generated in a conventional home or office with a crusher such as a disposer, the crushed organic waste is used. As shown in Fig. 1, a submersible pump and a submersible pump are stored in a storage pit in order to delay the corrosion of the pump by temporarily immersing the submersible pump in the water when the product is temporarily stored in the pit and sent to the processing section at the subsequent stage. A means for detecting the high water level of the pit (hereinafter abbreviated as HWL) and the low water level of the storage pit (hereinafter abbreviated as LWL) is provided. The submersible pump is started by the HWL, and the submersible water is set by the LWL set to the height of the pump or more. A method of stopping the pump was employed.

[0003]

However, the crushed organic waste is liable to rot, and in the prior art, L
In some cases, the crushed organic waste remaining in the WL rots and generates toxic gases such as odors and hydrogen sulfide.

In some cases, the crushed organic waste remaining in the LWL rots in the storage pit, transforms into a high-viscosity sludge, and causes a blockage of the liquid feed pump.

[0005] Furthermore, the crushed organic waste remaining in the LWL rots in the storage pit, and when valuable materials and the like are collected in an organic waste treatment system at a later stage, toxins generated by the rot are collected. Was likely to be mixed in.

[0006] In order to solve the above-mentioned problems, the present invention provides an organic waste transfer system capable of transferring almost all the crushed organic waste to a subsequent stage before it is putrefused in a storage pit, and an operating method thereof. The purpose was to.

[0007]

According to one aspect of the present invention, there is provided a storage pit for temporarily storing organic waste crushed by a waste crushing unit for crushing organic waste. In a system that has a pump that sends organic waste crushed from the pit, when pumping the organic waste crushed from the storage pit, all (or almost all) the organic waste crushed in the storage pit )
After the liquid is supplied, the operation of the pump is stopped. This makes it possible to transfer the crushed organic waste to a later stage before the crushed organic waste rots in the storage pit and generates odors and toxins.

According to a second aspect, in the method for transferring crushed organic waste according to the first aspect, the storage pit HWL is provided.
And a timer for maintaining the operation of the liquid sending pump for a certain period of time.
It is possible to start the liquid feeding pump at the time of detection and operate the liquid feeding pump until all (or almost all) of the crushed organic waste in the storage pit is discharged.

According to a third aspect of the present invention, in the method for transferring crushed organic waste according to the first aspect, the means for detecting the storage pit HWL, the means for detecting the storage pump LWL, and the operation of the liquid supply pump for a certain period of time. It has a timer to maintain it, so it is possible to start the liquid supply pump when LWL is detected and to operate the liquid supply pump until all or almost all of the crushed organic waste in the storage pit is discharged It is.

According to a fourth aspect of the present invention, in the crushed organic waste transfer pump transfer system according to the second aspect, the liquid supply pump is started when the storage pit HWL is detected, and the timer is turned on at the same time as the start, and after the set time of the timer, The control of stopping the liquid feed pump is performed, and the liquid feed pump liquid amount set by the timer is set to at least 1 time, preferably at least 1.2 times the liquid amount of the storage pit HWL. Even when a high-viscosity residue accumulates and the transfer pump flow rate decreases, the liquid feed pump is started when HWL is detected,
The pump can be operated until all or almost all of the crushed organic waste in the storage pit is discharged.

According to a fifth aspect of the present invention, in the system for transferring a crushed organic waste according to the third aspect, the liquid supply pump is started when the storage pit HWL is detected, and the storage pit LWL is activated.
At the same time as the detection, the timer is turned on, and after the set time of the timer, the liquid feed pump is stopped. Because of the features described above,
Even if high-viscosity residue accumulates at the bottom of the pit and the flow rate of the transfer pump decreases, the liquid feed pump is started when the LWL is detected, and all or almost all of the crushed organic waste in the storage pit is discharged. It is possible to operate the liquid feed pump.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Organic waste such as kitchen garbage is pulverized by a disposer, transferred to a pipe with water, and disposed near a place where the waste is generated.
Houses include single-family houses, city blocks, and apartments.
At the factory, the waste is transferred to the waste disposal department installed at each factory. At this time, when the crushing unit and the waste treatment unit are located at a distance from each other, a storage pit is provided near the crushing unit, and liquid is sent from the storage pit to the waste treatment unit using a liquid sending pump. Hereinafter, embodiments of the invention will be described with reference to the accompanying drawings.

[0013]

2 and 3 show an embodiment according to the present invention. In the embodiment of FIG. 2, in a storage pit having an effective storage pit capacity of 100 L during HWL,
A submersible pump with an output of 0.15 kW and a flow rate of 120 L / min is installed, a float switch for detecting HWL is installed, crushed organic waste flows in from the inlet pipe, and crushed organic waste is temporarily stored in the storage pit. Store municipal waste.

When the water level in the storage pit rises and reaches HWL and the HWL float switch is turned on, the liquid supply pump is turned on to start the supply of the crushed organic waste.
At the same time, the timer starts counting. Since the flow rate of the liquid sending pump is 120 L / min and the storage pit capacity is 100 L, almost all the crushed organic waste in the storage pit is sent in 0.83 minutes. Should be set to 1 minute, which is 1.2 times 0.83 times,
One minute after the start of the liquid feeding pump, the liquid feeding pump was stopped.

According to this operation method, almost all of the crushed organic waste in the storage pit is sent in full for each batch of storage and liquid sending, and there is no crushed organic waste remaining in the storage pit for a long time. Odor generation due to spoilage of the crushed organic waste, generation of toxins, and blockage of the liquid feeding pump due to sludge formation of the crushed organic waste did not occur, and a clean and safe storage tank operation could be obtained. In addition, the pump flow rate was reduced due to the increase in viscosity of the slurry remaining at the bottom of the pit. In some cases, the entire amount could not be discharged in 0.83 minutes, but within 1 minute of the setting, the entire amount was discharged.

In the embodiment shown in FIG. 3, an output as a liquid pump is provided in a storage pit having an effective storage pit capacity of 100 L during HWL and an effective storage pit capacity of 20 L during LWL.
A 0.15kW, 120L / min submersible pump is installed, and a float switch for detecting HWL and LWL is installed, and crushed organic waste flows in from the inlet pipe and is temporarily crushed into the storage pit. Stores organic waste.

When the water level in the storage pit rises and reaches HWL and the HWL float switch is turned on, the liquid supply pump is turned on to start liquid supply of the crushed organic waste.
When the liquid supply proceeds and the water level in the storage pit reaches LWL, the LWL float switch is turned on, and at the same time, the timer starts counting. The flow rate of the liquid supply pump is 120 L / mi.
n and the storage pit capacity at the time of LWL is 20 L, so that almost all the crushed organic waste in the storage pit should be sent 0.17 minutes after LWL detection. Is 0.25 which is 1.5 / 0.17 times
Minutes, and the liquid feed pump was stopped 0.25 minutes after the start of the liquid feed pump.

[0018]

According to the present invention, the following effects are exhibited by the above configuration. In claim 1, almost all of the crushed organic waste in the storage pit is sent in full amount for each batch of storage and liquid sending,
Since there is no long-term remaining crushed organic waste in the storage pit, odor generation due to decay of crushed organic waste, generation of toxins, and blockage of the liquid transfer pump due to sludge formation of crushed organic waste do not occur. A safe storage pit operation was obtained.

In the second and fourth aspects, the storage pit HW
A means for detecting L is provided, a liquid supply pump is started when HWL is detected, and a timer is used to measure a time longer than a time during which all of the crushed organic waste having an effective storage pit capacity can be supplied by the liquid supply pump. Stopping the pump ensures that all or almost all of the crushed organic waste in the storage pit is sent, eliminating long-term remaining crushed organic waste in the storage pit and decay of the crushed organic waste. Occurrence of odor, generation of toxin, and blockage of the liquid feed pump due to sludge formation of crushed organic waste did not occur, and a clean and safe storage pit operation could be obtained.

According to the third and fifth aspects of the present invention, the transfer pump is stopped by the time from the detection of the storage pit LWL. There is an advantage that the measurement time is short and is less affected by a timer error.

[Brief description of the drawings]

FIG. 1 is a conventional implementation method.

FIG. 2 is a first embodiment of the present invention.

FIG. 3 is a second embodiment of the present invention.

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Claims (5)

[Claims] 1. A storage pit for temporarily storing organic waste crushed by a waste crushing unit for crushing organic waste, and a pump for sending the organic waste crushed from the storage pit. In the method of operating the crushed organic waste transfer system having the above method, when the crushed organic waste is transferred from the storage pit by the pump, the operation of the pump is performed after all the crushed organic waste in the storage pit is sent. A method for operating a crushed organic waste transfer system, wherein the system is stopped. 2. The crushed organic waste transfer system according to claim 1, further comprising means for detecting the storage pit HWL, and a timer for maintaining the operation of the liquid feed pump for a predetermined time. Crushed organic waste transfer system. 3. The system for transferring crushed organic waste according to claim 1, wherein the means for detecting the storage pit HWL, the means for detecting the storage pump LWL, and the operation of the liquid feed pump are maintained for a certain period of time. A crushed organic waste transfer system, characterized in that it has a timer. 4. The crushed organic waste transfer system according to claim 2, wherein the liquid feed pump is started when the storage pit HWL is detected, the timer is turned on at the same time as the start, and the liquid feed pump is stopped after the set time of the timer. Operation of the crushed organic waste transfer system, characterized in that the amount of liquid supplied by the liquid supply pump set by the timer is set to be at least one time, preferably at least 1.2 times, the amount of the storage pit HWL. Method. 5. The crushed organic waste transfer system according to claim 3, wherein a liquid feed pump is started when the storage pit HWL is detected, a timer is turned on simultaneously with the detection of the storage pit LWL, and the liquid is sent after a set time of the timer. A crushing organic waste transfer characterized by performing control to stop the pump and setting a pumping liquid supply amount set by a timer to at least 1 times, preferably at least 1.2 times the storage pit LWL liquid amount. How the system operates.