KR20000054895A - fumigating device using sulfur - Google Patents

Abstract

PURPOSE: A sulfur fumigator using P.T.C(Positive TemperatureCoefficient) is provided to control the deflation of sulfur dioxide in using the sulfur fumigator and to prevent damages of human beings or garden plants by not inflaming sulfur. CONSTITUTION: A sulfur fumigator comprises as follows. A main body has a step-sill part on an upper part. An inserting part is fit into the step-sill part by cocking and fumigates sulfur powder or agricultural chemical- or wettable-liquid. A furnace includes a heatproof port around the edge. A P.T.C thermistor controls the fumigating temperature by the setting temperature attached to a lower part of the furnace. An electric power part supplies the electric power to the P.T.C thermistor. A fuse box automatically blocks the over voltage when the electric power is supplied to the P.T.C themistor. The furnace and the main body are fixed by a fastening device to be a unity. A lead wire is connected to left/right ring groove of an upper end of the main body for fixing the fumigator to the ceiling.

Description

Sulfur fume {fumigating device using sulfur}

The present invention relates to a pest prevention sulfur fume for house, particularly PTC (Positive Temperature Coefficient) to suppress the discharge of sulfurous acid gas when using sulfur fume, and prevent the sulfur from being ignited to prevent human and horticultural damage It relates to a sulfur fume using.

In general, in the production of leafy vegetables and flowers using gardening facilities, sulfur disinfection is usually performed to remove pests such as aphids. Sulfur disinfection methods currently used include sulfur incineration and sulfur fumigation.

The sulfur incineration method is easy to use because it does not require a separate facility cost, but in addition to the sulfur vapor required for incineration, toxic gases such as sulfurous acid gas are generated, which is not only harmful to the human body, but also causes damage to greenhouse facilities and horticultural materials. The use of sulfur incineration is gradually decreasing, and the safer sulfur fume technique is increasingly being used.

However, most of the current fumigated sulfur fumes are made in the USA, Japan, and Europe, which are expensive for farmers, and the fumigators produced in Korea as a supply are infrared light bulb heating. Compared with the disadvantage that the efficiency is not good compared to the problem.

Therefore, in order to solve the above problems, the applicant has proposed the Korean Patent Application No. 97-68968 "Sulfur fumigation".

That is, the configuration thereof will be briefly described with reference to FIGS. 1 to 3 as follows.

A lid 1 integrally formed with a fumigation port 1a and a heat dissipation port 1b, a body 2 formed of polyethylene, an internal crucible 3 into which sulfur powder or a pesticide solution or a hydration solution is charged, and the inside An external crucible (4) for fumigation of sulfur powder or pesticide solution or hydration solution charged into the crucible (3), a PTC thermistor (5) for controlling the fumigation temperature as a set temperature attached to the external crucible (4), and A power supply unit 6 for supplying power to the PTC thermistor 5, a lamp 7 for checking whether the power supply of the power supply unit 6 is supplied to the PTC thermistor 5, and a left upper part of the body 2 It is composed of a lead wire (8) connected to the ring groove on the right side to fix the fumigation to the ceiling.

Therefore, the sulfur fumigation constituted as described above is set to 140 to 170 ° C. so that the sulfur fumigation gas is not discharged and sulfur is not ignited.

In addition, economical and efficient temperature control should maintain proper temperature, reduce the number of user's operation and monitoring, and PTC (Positive Temperature Coefficient) ) Thermistor (7) is used.

On the other hand, when the power supply 6 is supplied to the PTC thermistor 5, the lamp 7 is turned on, and when the power supply 6 is not supplied to the PTC thermistor 5, the lamp 7 is turned off, and the PTC thermistor 5 The external crucible (4) is heated as power is supplied, and thus the fumigation pot (1a) formed on the lid (1) by fumigation of the sulfur powder or pesticide or hydrating solution charged in the inner crucible (3). Sulfur vapor or hydrating solution (pesticide) is scattered through the heat dissipation through the heat dissipation port (1b) formed in the lid (1).

At this time, the P.T.C thermistor 5 is appropriately controlled by the set temperature (140 ~ 170 ° C) to suppress the discharge of sulfurous acid gas to prevent the sulfur to be ignited.

However, the sulfur fumigation configured as described above is manufactured because the lid (1), the body (2), the inner crucible (3), the outer crucible (4) are separately assembled and assembled as shown in FIG. The fumigation assembled as described above by the increase in manufacturing cost and the external impact according to the process and assembly process has a problem that the body and the lid and the inner and outer crucibles are easily separated.

In addition, since the fume of the sulfur powder or pesticide solution or the hydrating agent solution which has not escaped from the fumigation pot 1a formed on the lid as described above is accumulated on the lid, and the fumigation port is blocked by the continuously flowing fumigation as described above, There is a problem that the fumigation effect is lowered.

The present invention is to solve the above problems, by installing a PTC thermistor on the bottom of the crucible having an opening and a heat dissipation port in the rim to control the temperature control, the fumigant of the pesticide solution or the hydrating solution solution is The purpose of the present invention is to prevent the accumulation of sulfur, to suppress the emission of sulfurous acid gas, to prevent the sulfur from being ignited, to improve the electrical efficiency and safety of the sulfur fume, and to supply the farm at low cost.

As a specific means for achieving the above object, the body having a stepped portion on the top; A crucible having a heat dissipation port formed in an insert portion and an edge portion for fumigation of sulfur powder or a pesticide solution or a hydrating solution solution by being coped with the stepped portion of the body by a caulking operation; A PTC thermistor attached to the bottom of the crucible to control the fumigation temperature as a set temperature, a power supply for supplying power to the PTC thermistor, and a fuse box that is automatically shut off when overvoltage flows when the power supply of the power supply is supplied to the PTC thermistor. And the crucible and the body are fastened by reinforcing ribs and screws.

1 is a perspective view of a conventional sulfur fumigation,

2 is a cross-sectional view of a conventional sulfur fumigation,

3 is a bottom view of a conventional sulfur fumigation,

4 is a perspective view of the present invention sulfur fumigation,

5 is an exploded perspective view of the present invention sulfur fume,

6 is a longitudinal cross-sectional view of the present invention sulfur fume,

<Description of the code | symbol about the principal part of drawing>

5: P.T.C Thermistor 6: Power Supply

8 Lead Wire 10 Body

11 step 12: hole

20: crucible 21: insertion portion

22: edge 23: heat dissipation port

24: reinforcement rib 25: screw hole

30: fuse box 40: fastening means

41: screw

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

First, among the present invention, the same reference numerals are given to the same shapes and names, and description thereof will be omitted.

Figure 4 is a perspective view of the present invention sulfur fumigation, Figure 5 is an exploded perspective view of the invention sulfur fumigation, Figure 6 is a longitudinal cross-sectional view of the invention sulfur fumigation.

The present invention is a sulfur fumigation, as shown in Fig. 5 or 6 as the overall cylindrical shape and the step 10 formed on the upper end 11 is caulking on the stepped portion 11 of the body 10 A crucible 20 in which a heat dissipation port 23 is formed in the insertion portion 21 and the edge portion 22 for fumigation of sulfur powder or pesticide solution or hydration solution; The PTC thermistor 5 attached to the bottom of the crucible 20 to control the fumigation temperature as the set temperature, the power supply unit 6 for supplying power to the PTC thermistor 5, and the power supply of the power supply unit 6 The fuse box 30 and the crucible 20 and the body 10 which are automatically cut off when an overvoltage flows to the PTC thermistor 5 are integrally fixed by the fastening means 40, and the body 10. It is connected to the ring grooves on the left and right sides of the upper end, and the technical configuration is given because the lead wires 8 fix the fumigation to the ceiling.

As shown in FIG. 6, at least two reinforcing ribs 24 are formed at the bottom of the crucible 20, and screw holes 25 are formed at the bottom of the fastening means 40. It is positioned in the hole 12 formed in the surface and is configured to be fastened by the screw 41.

The sulfur fumigation configured as described above should first set the sulfur fumigation temperature, in which the sulfurous acid gas should not be discharged and sulfur should not be ignited, but the optimal sulfur fumigation temperature is set to 140 to 170 ° C.

In addition, economical and efficient temperature control should maintain proper temperature, reduce the number of user's operation and monitoring, and should be able to prevent excessive heating of the device. As a device, a PTC (Positive Temperature Coefficient) thermistor 5 is used.

In general, thermistor is a resistor that shows a very large change in resistivity with respect to temperature change, and has a negative resistance, and has a switching temperature for preventing overheating and fire prevention. The PTC thermistor 5 is a barium titanate (BaTiO3) system. In practical use as an electronic ceramic, a sintered barium titanate is used as a heating element and a phosphorus (In) and nickel (Ni) electrode is used as an electrode.

The PTC thermistor (5) is inserted into an electronic circuit and used, but the direction of change of the resistance value with respect to temperature is reversed, and thus the same method as the use of a negative temperature coefficient (NTC) thermistor is used. As a current-limiting resistor and a constant temperature heating element, the heating element application is used in the form of a plate, such as an electronic jar (jar), an electronic mosquito incense, and in the form of a honeycomb, it is used in a hair dryer and a clothes dryer, and can be used for a long time without the risk of overheating. It is easy to assemble and has the advantage of quickly reaching the set temperature.

On the other hand, the power supply 6 heats the crucible 20 as power is supplied to the PTC thermistor 5, and thus sulfur powder or pesticide solution or hydrating agent solution charged in the crucible 20 is fumigation and is directly sulfur vapor. Alternatively, the hydrous solution (pesticide) may be scattered, and heat may be dissipated through the heat dissipation port 23 formed in the crucible 20.

At this time, the P.T.C thermistor 5 is appropriately controlled by the set temperature (140 ~ 170 ° C) to suppress the discharge of sulfurous acid gas to prevent the sulfur to be ignited.

On the other hand, the melting point of sulfur is 388.36K (115.36 ° C) at 1 atmosphere, and the evaporation point is 717.75K (444.75 ° C), and the sulfur fumigation temperature that can be dried without burning is 140 to 170 ° C.

In addition, the fume gives an inclination angle to the plate and the top portion to increase the heating area and uniform temperature distribution.

In order to facilitate the handling of the fume, the sulfur powder is solidified to an appropriate size. The solidification of the sulfur powder is performed by using a hot press method and an optimization experiment of the compression process conditions to obtain a theoretical density (2 g / cc). As a result, 95% or more of theoretical density can be obtained at a working pressure of 200 kg / cm 2 and a heating temperature of 90 to 100 ° C.

In addition, the size of the pellet (pellet) was designed in a mold size of Φ 8mm × 6mmH, which is the amount that can be fumigation for 8 hours with one pellet.

In addition, the qualitative and quantitative analysis of substances in steam or gas is usually measured by using a gas chromatography method or a portable gas detector. Although it was tried to measure the scattering distance by collecting it, a satisfactory result was not obtained. This is a solid sulfur particle in which sulfur vapor was not ionized, and thus it was not easy to collect and analyze in a gas detector or gas chromatography.

As an alternative to the gas detector or gas chromatography, as a result of qualitative analysis of the SO2 generated by burning evaporated sulfur particles by using candles at a certain distance using a portable SO2 detector, the amount of sulfur particles by distance cannot be measured. It can be seen that sulfur particles at a distance of approximately 5 m are scattered, and from this, the available area of the system is estimated to be approximately 80 m 2 (25 pyeong to 26 pyeong).

Therefore, the optimum fumigation temperature (140-170 ° C) that prevents ignition of sulfur and suppresses the release of sulfurous acid gas is set, and it is 95% or more of theoretical density at 200kg / cm2 pressure and 90-100 ° C heating temperature by hot compression method. SUS 304 is used as an optimal surface material which does not form slag by reacting with the surface after fumigation as the improvement of the surface condition of the hot plate.

In addition, by using the PTC heating element heating plate that does not require a separate temperature control device, it can reach the optimum fumigation temperature (140 ~ 170 ℃) within 5 minutes, the electricity consumption is reduced, the fumigation body is durable, corrosion resistance, safety In consideration of the practicality and design, and by putting sulfur into the fume once a day, one can cover 25 pyeong to 30 pyeong.

As described above, in the present invention, the power consumption of the sulfur fume is about 30 W, thereby saving power. The temperature response is controlled by a PTC element, which is a semiconductor, so that the control response is quick, and there is no control deviation, thereby preventing generation of harmful factors due to water-soluble chemicals. Reliability is improved, and accurate temperature control is possible to suppress the generation of harmful substances such as sulfurous acid gas, and to prevent fire, etc., and stability is also secured. Because it can prevent the contact of the facility, the facilities are not damaged, thereby reducing the economic loss.

In addition, since the crucible and the body are integrally formed by the fastening means and the caulking operation, assembly is easy.

Claims (1)

A body having a stepped portion thereon; A crucible having a heat dissipation port formed in an insert portion and an edge portion for fumigation of sulfur powder or a pesticide solution or a hydrating solution solution by being coped with the stepped portion of the body by a caulking operation; A PTC thermistor attached to the bottom of the crucible to control the fumigation temperature as a set temperature, a power supply for supplying power to the PTC thermistor, and a fuse box that is automatically shut off when overvoltage flows when the power supply of the power supply is supplied to the PTC thermistor. And, the crucible and the body is sulfur fume, characterized in that fixed to the integral by the fastening means.