KR100684689B1 - Measuring pool of food refuse - Google Patents

Abstract

The present invention is to measure the amount of storage of the weighing tank by the mechanical configuration of the iron parts that do not corrode the food waste, to automatically control the input output of the weighing tank, the mechanical configuration of the iron parts that do not corrode food waste In order to measure the amount of storage in the weighing tank and to automatically control the input / output of the weighing tank, the tubular body extends from both sides of the lower side of the tank equipped with a stirring screw to both sides. And a screw conveyor disposed inside the tubular body, wherein the storage flow measuring means is disposed at a predetermined position of the lower side and the upper side in the tank, and the load variation means in the storage measuring means When the current meter detects a change in the current value and inputs it to the PLC, the PLC inputs the data. The amount of food waste stored in the tank is always maintained at a constant level by performing a thorough control of the waste supply facility for supplying food waste which is connected to the supply side of the tank and supplies food waste according to the result. It is.

Food Waste Weighing Tank, Waste Weighing Tank, Food Waste Crushing, Stirring

Description

Measuring pool of food refuse}

1 is a schematic perspective view showing the overall configuration of a weighing tank according to the present invention;

Figure 2 is a view showing the configuration of the storage amount measuring means provided in the measuring tank of the present invention.

3 is a front sectional view of FIG.

<Description of the symbols for the main parts of the drawings>

2: tank 4: screw conveyor

6: tube 8: supply side

10: discharge side 12: stirring blade

14: stirring screw 16a, 16b: storage amount measuring means

17; Motor 18: reducer with shaft

19; Underbody 20: Current meter

22: PLC 24: previous stage equipment

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metering tank, and more particularly, to a metering tank for food waste processing suitable for the purpose of pulverizing, mixing and dispensing food waste collected at a food waste disposal facility.

Among the wastes derived from human life, food wastes have recently been collected by special vehicles due to the development of recyclable technology, collected at certain places, and then recycled into food, fertilizers, etc. through biochemical treatment.

The collected food waste is once put into a storage tank where it is crushed and mixed through several stages of treatment facilities, such as screw presses, shred sorters, transfer conveyors, etc. via conveyor means, and finally biochemically treated.

In general, food wastes are treated by fermentation by microorganisms, landfills which are compression molded into moisture-free masses, and the fermentation process is widely used because it has the advantage of being immediately recycled into livestock feed or agricultural fertilizer. Is in.

According to the known method of treating food waste, the collected food waste is temporarily stored in a storage tank, then transported on a conveyor to be crushed and stirred, and some moisture is removed, and then sent to a fermentation tank or a compressor for fermentation, or It is carried out in a flow which is compression molded into a block.

In such a food waste treatment method, the fermentation treatment by microorganisms is closely related to the amount of food waste to be input once and the amount of microorganisms.

Therefore, food waste that is primarily accommodated in the reservoir needs to be quantitatively managed when it is crushed and stirred and then sent to the process.

In general, the weighing tank is provided with a stirring screw and a conveying screw conveyor therein, and they are driven at a constant speed to always discharge a certain amount of crushed and stirred food waste.
More specifically, the food waste is processed so that there is no bone fragments, food lumps, etc. through the shredding sorter in the storage tank, and then the water is removed by a screw press, and the processed food waste is sent to the weighing tank to a certain amount. It is discharged gradually, and an effective biochemical treatment is planned by adding microorganisms in quantitative quantities.

In the above-described food waste treatment process, the operation of the equipment does not occur when the amount of food waste passing through the supply side and the discharge side of the food waste metering tank is kept the same.

In other words, if the amount of food waste supplied from the supply side is larger than the discharge amount, the amount of storage in the tank increases and is overloaded, and vice versa, since the amount of storage decreases and is operated under low load, the equipment is severely stressed and easily breaks down.

Because of this problem, the manager is conventionally operating in a manager-resident manner in which the storage of the tank in the tank of the weighing tank is popular through the observation window, and the supply line is controlled to maintain the storage in the tank.

The operation of the manager resident system as described above is not preferable because it causes overloading of the weighing tank in the same manner when management is neglected, in addition to the problem of manpower.

In addition, it is possible to control the amount of supply to the supply side by installing a means for measuring the amount of storage in the tank of the weighing tank, for example, a float contact point to generate an electronic signal according to the water level. Float contacts are difficult to apply due to the high moisture content and easy corrosion.

The present invention is to measure the storage amount of the weighing tank in the mechanical configuration of the iron parts that do not corrode to the food waste, in order to eliminate the trouble that the manager should reside in the food waste metering tank as described above, and based on the measured value Its aim is to provide a food waste metering tank that can maintain a consistent stock of food.

The above object is that the pipe body is extended from both the lower center of the tank equipped with a stirring screw to both sides, and both ends of the pipe body to the supply side and the discharge side, respectively, and the screw conveyor is disposed inside the pipe body In the food waste metering tank of the structure, a storage amount measuring means made of a material which is not corroded to the food wastes supplied to and stored in the tank is arranged, and the current value change according to the load variation in the storage amount measuring means is present in the current tank. If the amount of food waste stored in is inputted to the PLC, this PLC can be achieved by computing the input data and controlling the amount of food waste supplied to the supply side of the tank according to the result.

The present invention, in order to achieve the above object, the pipe body is attached to both sides extending from the lower center of the tank having a stirring screw therein, both ends of the pipe form a supply side and a discharge side, respectively, In the food waste dispensing tank which consists of a screw conveyor arrange | positioned inside, the storage device which consists of a motor with a reducer to the predetermined position of the lower side and the upper side inside the said tank, and the storage amount measuring means which consist of the skin underbody which cross-bonds to the end of the shaft are respectively arrange | positioned. The input terminal of the motor with the reducer is connected to a current measuring device to detect a change in current according to the load change of the motor, and the current measuring device inputs the detected change in the current value to the PLC as data, and the PLC stores the storage tank. , Shredders, screw presses and conveyor systems for transferring food waste between them By controlling, the amount of food waste supplied to the supply side of the tank is controlled.

In addition, in the present invention, the output signal of the current meter is a low current consumption value when the motor attached to the upper storage amount measuring means disposed inside the tank is measured by rotating at a constant speed outside the food waste, and also the lower level The current consumption value when the motor assigned to the storage measuring means is measured by rotating at constant speed in the food waste should be set to the lower normal reference, respectively.

Hereinafter, the present invention will be described in detail with reference to preferred embodiments according to the accompanying drawings.

1 is a perspective view showing the configuration of the present invention, the tank (2) in which food waste is stored in a narrowly extended form, the screw conveyor (4) is built through the center extending to both sides As for the part extended to the both sides, the outer periphery is coat | covered with the tubular body 6, one side is set to the supply side 8 and the other to the discharge side 10. As shown in FIG.

Moreover, inside the tank 2, the stirring screw 14 provided with the stirring blade 12 in the outer periphery is arrange | positioned rotatably, and it is made to grind | pulverize and stir the stored food waste, and at the predetermined position of the lower side and the upper side Storage amount measuring means 16a and 16b are arranged.

As shown in FIG. 2, the storage amount measuring means 16a, 16b is composed of a motor 17 with a speed reducer and a subcutaneous body 18 cross-bonded to an end of the shaft 18 of the motor 17. As shown in FIG.

In practice, the reduction geared motor 17 is disposed to be exposed to the outside of the tank 2, and only the underbody 18 is provided to be positioned inside the tank 2.

In addition, the current applied to the input terminal of the motor 17 constituting the storage amount measuring means 16a and 16b is connected to be applied via the current measuring device 20, and the current measuring device 24 changes the applied current. Is input to the PLC (Programmable Logic Controller) 22.

In the PLC 22, data of a current consumption value corresponding to the load applied to the motor 17 is input, and the input signal of the current measuring device 20 is calculated based on this, so that the current rotation of the motor 17 is normal. Program logic to determine whether the

The flow result of the stored program logic is based on the storage amount measuring means 16a and 16b respectively disposed on the upper and lower sides, and is output at an opposite value to control the previous stage equipment 24 disposed just before the weighing tank.

In the present invention, the previous stage equipment 24 refers to all known equipment, such as a storage tank, a shredding sorter, a screw press, and a conveyor system connecting them, which should be provided as a food waste treatment facility.

The reduction geared motor 17 can employ a relatively small motor waterproofed.

The storage amount measuring means 16a and 16b cause a change in the consumed current value depending on the case where the underbody 22 attached to the end of the shaft 18 rotates in the food waste and the case where it rotates outside.

However, as described in detail in FIG. 3, since the storage amount measuring means 16a and 16b are arranged separately in the tank 2 into the lower part and the upper part, their changes are opposed to the internal environment of the tank 2. Will be displayed.

Therefore, while the upper storage amount measuring means 16a should set the current consumption value when the motor 17 rotates at a constant speed outside the food waste, as the normal data, the lower storage amount measuring means 16b has the motor ( It is necessary to set the current consumption value at the constant speed of 17) to normal data.

With this setting, the amount of food waste storage in the tank 2 does not always reach the upper storage amount measuring means 16a, and at the same time, it is maintained at a level beyond the lower storage amount measuring means 16b.

More specifically, when the lower body 19 of the motor 17 is buried in the food waste and rotated in the upper storage measuring means 16a, the speed is slowed under the load, and thus the current consumption value is increased. Therefore, the output signal of the current measuring device 20 exclusively transmitted to the upper storage amount detecting means 16a is recognized as the storage amount over state by the PLC 22, and the previous stage facility 24 is controlled to be paused to control the inside of the tank 2. Prevent food waste from increasing anymore.

On the contrary, when the lower body 19 is placed outside the food waste and rotated by the lower storage amount detecting means 16b, the speed is increased because there is no load rotation, and thus the current consumption value is lowered, and as a result, the lower storage amount measuring means 16b. The change in the output signal of the current measuring device 20, which is transmitted to (), is determined by the PLC 22 as the storage amount under, so as to control the operation of the previous stage equipment 24 to be increased to increase the amount of food waste supplied.
As such, the reason why the PLC 22 controls the entire previous stage equipment 24 in the present invention is that the entire previous stage equipment 24 which supplies food waste to the tank 2 affects the amount of food waste. This is because, if only one part is controlled, bottlenecks occur in food waste transportation, which may result in poor results.

As a result of the control action of the PLC 22 as described above, the internal lower screw conveyor 4 and the stirring screw 14 of the tank 2 are not operated in an overloaded or unloaded state, as well as always a constant amount of food. Since the waste is being stored, the amount of food waste fed to the subsequent process through the discharge side is also supplied in a more precise quantity.

As described above, according to the present invention, a storage amount detecting means for detecting a load state that changes depending on whether or not food waste is stored as a rotary load is disposed in the upper and lower sides of the tank, and the load change is calculated by the PLC to determine the supply side. By controlling the previous stage equipment to increase or decrease the amount of food waste supplied to the weighing tank, there is an advantage that the equipment can be automatically operated even if the manager does not reside.

In addition, since the present invention is configured to measure the amount of storage of food waste by changing the current consumption value according to the change of the rotational speed of the motor, the lower body of the skin is made of a material such as stainless steel that is not easily corroded, thereby causing rust or breakage. I also have the advantage of running equipment without work.

Claims (2)

Both ends of the tubular body extending in both directions from the lower center of the tank equipped with a stirring screw therein are respectively supplied to the discharge side and a screw conveyor is disposed inside the tubular body to discharge a predetermined amount of food waste stored therein. In the food waste measuring tank A storage amount measuring means comprising a motor with a reducer and a subcutaneous lower body cross-bonded to the shaft end of the motor and attached to position the subcutaneous lower body to the inside of the tank at a predetermined position outside the tank; A current measuring device interposed at an input terminal of the motor with a speed reducer to detect a current change according to the load change and output the data; In accordance with the value calculated from the data input from the current meter to control the previous stage equipment connected to the supply side of the tank, the configuration with a PLC to ensure that the amount of food waste stored in the tank is always maintained at a certain level Food waste weighing tank. The food waste metering tank according to claim 1, wherein the normal data conditions of the motor with the reducer of the upper storage amount measuring means arranged inside the tank and the motor with the reducer of the lower storage amount measuring means are set to be opposite to each other.

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