JPH0742249Y2 - Hot water control machine for taro - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sterilizer for taro and the like, and more particularly to a seed sterilizer for which heated water is used.

[0002]

2. Description of the Related Art Since taro is a relatively labor-saving crop,
The cultivated area is growing, centering on paddy field cropping. However, the spread of a disease (Fusarium bacterium), which is considered to be the cause of continuous disability and infects seed potatoes, has become a major problem in terms of production and storage.

Taking the example of Niigata prefecture, the taro cultivation area is 935 ha (1990), of which 46% is due to paddy crop transfer. Taro is a vegetatively propagating crop and requires a large amount of seed potatoes, and the annual requirement in Niigata prefecture is estimated to be about 1400 tons.

[0004] Seed potatoes have a high infection rate of diseases (Fusarium bacterium) and supply and demand are extremely unstable, and it is difficult to secure seeds. The unit price is also high (about 90000 yen / 10a ・ 600
(Yen / kg), area expansion is largely hindered.

Conventionally, chemicals have been used for controlling this disease, but the reality is that the effect is difficult to increase and the production amount and storage properties are significantly reduced. Therefore, the development of a new control method that does not rely on pesticides has been advanced, and as a result, it has been found that it is effective to immerse it in hot hot water for a short time. However, it has been pointed out that it is difficult to introduce it on site because accurate processing is required for implementation.

[0006]

[Problems to be Solved by the Invention] As a result of basic research, the present invention discovered the relationship between the killing temperature of pathogenic bacteria and the heat-resistant temperature of taro, and based on the fact that the possibility of control by heating was suggested, The objective is to develop a hot water sterilizer that enables simple, reliable, and large-scale continuous treatment by combining a constant temperature heating water tank and a transfer system to elucidate the mortality temperature and heat resistance of taro.

[0007]

The apparatus of the present invention is a large-sized treated water tank in which the heating temperature can be controlled by a hot water boiler, and hot water is pressurized with a pump and sprayed from a spray pipe to generate a water flow and stir the disinfectant. Comprising a stirring means to perform, and a disinfectant transport system that uses a rope that rotates at a constant speed to fill the net bag with the disinfectant and suspend the rope to move in the water tank. Is the size (45
0 cm (L) * 60 cm (H) * 55 cm (W)), water volume (1000 l), material (12 mm control panel, 30 mm
A fired styrene / waterproof sheet) is used as a heating device for a hot water boiler (fully automatic hot water boiler (Nepon).
HB-250TGK 25,000 kcal / hr 2
00V 3-phase), circulation pump (SANSO hot water circulation pump (three-phase electric) PB-1023A 165V 0.85
A 200V 3 phase), temperature controller (200V thermo (nepon) 200V relay (nepon) thermocouple temperature sensor), radiating pipe (40mm (D) steel pipe 32m extension in water tank) Stirring pump (self-priming cascade pump (Kawamoto) CS2-405-MO7
5 750W 3.6a 200V 3 phase), injection pipe (20mm (D) PVC pipe 3.5m * 4 pieces) Injection hole
1.2 mm (D) 25 cm interval Valve switching 2 steps 1 step 22 holes Injection pressure 2.4 kg / cm ² , 2 steps 44 holes Injection pressure 1.2 kg / cm ² ) Compressor (small reciprocating air compressor Iwata Painting C)
S-150P) is a constant speed rotary motor (motor for curtain (Mizuho Bussan) 20D 20)
0V 3-phase), driving drum and rope induction drum (driving drum curtain drum (Mizuho Bussan) 2D 14
5mm (D) induction drum Curtain drum (Mizuho Bussan) 2A 120mm (D), rope (Cremona nylon rope (Kuraray) 12mm (D) rope movement distance 51cm / min), loosening prevention device (60mm
(D) Door roller 45mm for hanging doors (D) bracket wheel anchor concrete block)
0mm steel ring, 35mm ball chain, 35
A mm metal ball chain stopper and an S-shaped hook can be preferably used.

In this device of the present invention, the set temperature of the water tank is
The heating water temperature can be freely set up to about 70 ° C, the set temperature range is 0.5 ° C, and the 1000 liter large water tank and circulation structure in the tank hardly cause temperature unevenness, and a small amount of disinfectant can be continuously supplied. By adopting the charging method, there is almost no temperature drop during processing. In addition, the disinfectant is processed in small units of about 5 kg, but since it is continuously charged, the processing amount per hour is 300 kg. Stirring of the disinfectant is performed by injecting warm water, but if necessary, bubbles can be mixed to further improve the stirring ability.

[0009]

The operation of the apparatus of the present invention will be described below with reference to FIG. 1. The hot water produced by the hot water boiler (2) is
The large-scale treated water tank (1) is circulated through a radiating pipe (9), and the water in the water tank is heated. The radiating pipe is a closed circulation system and is not mixed with the water in the aquarium. The temperature control is performed by connecting a temperature sensor (5) and a controller (4) to a circulation pump (3) that circulates the hot water in the radiating pipe.

Hot water in the water tank is circulated in the water tank by a stirring pump (6). At the time of processing, pressure is injected from the injection pipe (8) to generate a water flow and at the same time, the object to be disinfected is stirred. If necessary, the compressor (7) is operated to mix air bubbles, whereby the stirring ability can be further enhanced.

The drive drum (11) is set on the constant speed rotation motor (10), and the rope (12) is continuously rotated at constant speed. A certain amount of the disinfectant is put in the net bag (16), and the rope is hung on the hanging metal fitting (13). An anchor (15) is connected to the suspension bracket (14) so that the rope does not become loose, and a certain tension is applied to the rope to prevent slipping.

The distance that the net bag moves in the water tank is converted into time, and after moving a certain distance, the hanging bag is removed and the treatment is completed. The processing capacity is 300 for 2 workers.
It is about kg / hr.

[0013]

[Effects of the Invention] The apparatus of the present invention can easily set the temperature of the heated water up to about 70 ° C, and since there is almost no temperature unevenness in the treatment tank, the sterilization process for controlling the dry disease of taro is easy. And now it can be implemented reliably.
As a result, it is expected that the disease-free seeds will be stably secured, at the same time that the storability will be improved and long-term shipment will be possible, and further mass production of taro with better quality is expected, and other There is a possibility that it can be applied to the control of pests of other crops by using it in combination with a drug.

[0014]

[Brief description of drawings]

FIG. 1 is a schematic explanatory view showing the constitution of the device of the present invention. Explanation of symbols 1. Large aquarium, 2. Hot water boiler, 3. Circulation pump,
5. Temperature sensor, 6. Stirring pump, 8. Injection pipe,
7. Compressor, 12. Rope, 16. Net for filling objects.

Claims (1)

[Scope of utility model registration request] 1. A large-sized heating water tank whose heating temperature can be controlled by a hot water boiler, a stirring means for pressurizing and spraying the heating water in this water tank from a spray pipe, and an object to be treated filled in a net is suspended on a rope. Hot water control machine for taro, characterized in that it comprises a conveying means for moving the heated water for a certain period of time, and adjusts the relation between the heated water temperature and the conveying speed.