JPS641436B2 - - Google Patents

Description

[Detailed description of the invention] (b) Industrial application fields The present invention relates to a composting device.

(b) Conventional technology Composting equipment is a device that puts raw materials into a fermenter and ferments them to make compost.In order to obtain compost of excellent quality, it is necessary to It is necessary to accurately control the amount of However, in conventional composting equipment, the amount of raw materials input is not accurately controlled, and the amount of raw materials brought in by truck is determined by the amount that is sorted and removed in the pretreatment process leading to the fermentation tank. The approximate amount of input was only estimated by subtracting the amount of leachate from the raw materials that escaped during the process.

(c) Problems to be solved by the invention However, in such conventional composting equipment, it is necessary for workers to constantly monitor the input status, and there is also a need to measure the amount of material that has been sorted and removed. A great deal of effort and time will be expended,
However, there was a problem in that the input amount could not be controlled very precisely. The present invention aims to solve these problems.

(d) Means for solving the problem The present invention measures the weight of the raw material input into the fermenter by converting it into an electrical signal, and controls the pretreatment device based on this electrical signal. This solves the problems mentioned above. That is, the composting apparatus of the present invention includes a measuring punching plate arranged at a position where raw materials inputted into the fermenter from the input section are deposited, and a measuring punching plate that supports the measuring punching plate from the bottom and adjusts the amount according to the weight of the raw materials. It has a load cell that generates an electric signal, and a control device that detects that the weight of the raw material detected by the load cell has reached a preset value and stops the operation of the pretreatment device.

(E) Action The raw materials put into the fermenter are deposited on the measuring punching plate. A load cell provided on the lower surface of the measuring punching plate generates an electric signal according to the weight of the raw material. The electrical signal is sent to a control device. The control device detects that the weight of the raw material has reached a set value and stops the operation of the pretreatment device. That is, it is possible to detect the amount of raw material input into the fermenter based on the electric signal from the load cell, stop the pretreatment device accordingly, and accurately control the input amount.

(f) Example FIG. 1 shows an example of the present invention. The fermenter 10 is provided with a curved measuring punching plate 14a. Measuring punching plate 14a
is arranged at a position where the raw material 16a is input from the input conveyor 32g of the pretreatment device 32. A flat punching plate 14b is provided in a portion of the fermenter 10 other than the bottom portion where the measuring punching plate 14a is provided. The measuring punching plate 14a and the punching plate 14b are independent, and the measuring punching plate 14a
is supported by the fermenter 10 via load cells 18 and 19 as described later, and the punching plate 14b is directly supported by the fermenter 10. A ventilation chamber 20 is formed in the lower part of the measuring punching plate 14a and the punching plate 14b. A stirrer 12 is provided at the top of the fermenter 10 so as to be movable in the longitudinal direction of the fermenter 10. The stirrer 12 feeds raw materials 16a and 16b.
It has a stirring mechanism 12a capable of stirring. The lower surface of the measuring punching plate 14a is connected to a plurality of load cells 1 fixed to the bottom of the fermenter 10.
8 and 19. The load cells 18 and 19 are always on the measuring punching plate 1.
An electric signal corresponding to the weight of the raw material 16a deposited on 4a is sent to the recorder 2 via cables 21 and 22.
Send to 4. Recorder 24 includes load cells 18 and 19
The input amount (weight) of raw materials can be recorded based on the electrical signals sent from the machine. Electrical signals from load cells 18 and 19 are also sent to weight setter 26. The weight setting device 26, which constitutes a control device together with a timer setting device 28 (to be described later), can arbitrarily set the value of the input amount of raw materials in advance, and electrical signals corresponding to this setting value are sent from the load cells 18 and 19. When the timer is set, a control signal is output and sent to the timer setter 28. The timer setting device 28 is connected to the drive motor 30a of the raw material storage feeder 32a, which constitutes the pre-processing device 32, and the conveyor 3.
2b drive motor 30b, crusher 32c drive motor 30c, conveyor 32d drive motor 30
d, cables 29a, 29b, 29c, 29d, 29 are connected to the drive motor 30e of the sieve separator 32e, the drive motor 30f of the conveyor 32f, and the drive motor 30g of the input conveyor 32g, respectively.
Control signals can be supplied via e, 29f and 29g. The timer setting device 28 is the weight setting device 2.
6 via the cable 27, and the cables 29a, 29b, 29
It is configured to supply a control signal for stopping the operation to the terminals c, 29d, 29e, 29f and 29g in this order at a time difference.
A stirrer 12 is installed near the raw material input section of the fermenter 10.
A sensor 36 is arranged to detect the approach of the stirrer controller 34, and an electrical signal from the sensor 36 is sent to the stirrer controller 34 via a cable 31a. The agitator controller 34 is connected to the drive motor 30g of the input conveyor 32g of the pretreatment device 32 via a cable 31b, and is also connected to the agitator running motor 33 via a cable 31c. When the agitator controller 34 receives an electric signal from the sensor 36 indicating the approach of the agitator 12,
The drive motor 30g of the input conveyor 32g operates to stop the movement of the agitator 12 when it is in operation.

Next, the operation of this embodiment will be explained. Raw material 16b
, the material input from the input conveyor 32g onto the measuring punching plate 14a in the fermenter 10 is stirred by the stirring mechanism 12a of the agitator 12 and moved toward the discharge section at the right end of the fermenter 10 in the figure. It is what was done. After a predetermined period of time, there will be no raw material on the measuring punching plate 14a. In this state, the raw material storage feeder 32a and the conveyor 32 constituting the pre-processing device 32 are
b, crusher 32c, conveyor 32d, sieve separator 32e, conveyor 32f and input conveyor 32g
The raw material 16a newly introduced is deposited on the measuring punching plate 14a. The weight of the raw material 16a deposited on the measuring punching plate 14a is measured by load cells 18 and 19. That is, the weight of the raw material 16a is
8 and 19 into electrical signals, which are sent to a recorder 24 via cables 21 and 22 and recorded. The electrical signals from the load cells 18 and 19 are also sent to the weight setting device 26, and when this reaches a preset value, the weight setting device 26
outputs a control signal and sends it to the timer setter 28 via the cable 27. As a result, the timer setting device 28 connects the cables 29a, 29b,
Drive motors 30a, 30b, 30 via 29c, 29d, 29e, 29f and 29g, respectively.
A control signal is supplied to c, 30d, 30e, 30f, and 30g in this order to stop them at a predetermined time difference. Therefore, the pretreatment device 3
2, the operation is stopped sequentially from the upstream side to the downstream side along the flow direction of the raw material. In this way, the weight setting device 2
Since the raw material charging operation by the pretreatment device 32 can be stopped according to the setting value set in No. 6, the raw material charging amount can be accurately controlled by automatic operation. Note that when the pretreatment device 32 is performing the charging operation, when the agitator 12 approaches the raw material input section of the fermenter 10 and reaches the position of the sensor 36, this is immediately detected by the sensor 36, and this is detected by the sensor 36. The detected electrical signal is cable 3
1a to the agitator controller 34.
An electric signal from a drive motor 30g of an input conveyor 32g is also sent to the agitator controller 34 via a cable 31b. Stirrer controller 34
When the drive motor 30g of the input conveyor 32g is operating and the pre-processing device 32 is performing the loading operation, a control signal is sent to the stirrer running motor 33 to stop the movement of the stirrer 12; to stop. That is, priority is given to the operation of the drive motor 30g. Note that while the drive motor 30g of the input conveyor 32g is in operation, the agitator 12 is prevented from entering the input section of the fermenter 10, but conversely, the drive motor 30g is stopped and the agitator 12 is moved from the input section. It is also possible to move it up to Further, in this embodiment, a recorder 24 is provided, but this is for confirmation and is not necessarily necessary.

(g) Effects of the invention As explained above, according to the present invention, by measuring the weight of the raw material input into the fermenter and comparing it with a preset value,
Since the charging operation is stopped, the amount of charging can be accurately controlled at all times.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a composting apparatus according to an embodiment of the present invention. 10...Fermentation tank, 12...Agitator, 14a...Measuring punching plate, 18, 19...Load cell, 24...Recorder, 26...Weight setting device, 28...Timer setting device, 32...Pretreatment device, 34...Agitator Controller, 36...sensor.

Claims (1)

[Scope of Claims] 1. In a composting apparatus having a fermenter in which raw materials are put and fermented, and a pre-treatment device that pre-processes the raw materials and introduces them into the fermenter, A measuring punching plate is placed at a position where the raw material is deposited, a load cell supports the measuring punching plate from below and generates an electric signal according to the weight of the raw material, and the weight of the raw material detected by the load cell is a control device that detects that a preset value has been reached and stops the operation of the pretreatment device;
A composting device characterized by having: