CN111387161A - Hot air fumigation pest killing method - Google Patents

Abstract

The invention discloses a hot air fumigation and insecticidal method, which comprises the following steps: S1: cleaning the workshop and removing all movable combustibles out of the workshop; S2: prefabricating and protecting the non-movable instruments and equipment in the workshop from heat insulation; for preventing the workshop High temperature damage to the inner instrument electrical; S3: The modulation workshop opens all the soft connection windows of the equipment in the workshop and cleans up the internal impurities and the residue of the original raw materials, which is used to open the air duct for the hot air flow in the workshop to make the hot air heat exchange smoothly in the workshop; S4: Seal the workshop to seal all the air leaks in the workshop and isolate the hanging holes; S5: Arrange hot air generators and temperature control devices to control the temperature in the fumigation workshop and fumigation; S6: For fumigation, start the hot air generator to the workshop Heating, workshop fumigation temperature is 55-65℃ for 24-30 hours. The present invention adopts the physical fumigation method without any drug residue, so it can ensure the safety of food, traditional Chinese medicine and other items, and the environmental protection does not harm the air and the environment.

Description

Hot air fumigation to kill insects

technical field

The invention relates to the technical field of fumigation and insecticide, in particular to a hot air fumigation and insecticide method.

Background technique

In the grain and oil production workshop and its storage workshop, food production, processing and its storage workshop, traditional Chinese medicine production, processing and its storage workshop and other industrial workshops, due to dust breeding rice elephants, grain thieves, moths, etc., seriously affecting the safety of food and traditional Chinese medicine . In this regard, in the prior art, the method of drug fumigation and drug extermination is mostly used. Among them, the Chinese Patent Authorization Announcement No. CN208047842U, the patent name is the utility model patent of sulfuryl fluoride fumigation and spraying device is one of them. It specifically discloses a sulfuryl fluoride fumigation and application device, which includes a pressure reducing valve, a heater and a regulating valve, and the air inlet of the pressure reducing valve is connected to the sulfuryl fluoride output port of the sulfuryl fluoride high-pressure bottle through a pipeline. , the heater is connected to the air outlet of the pressure reducing valve through a pipeline, the output end of the heater is connected to the input end of the regulating valve through a pipeline, and the regulating valve is connected to the applicator head to output sulfuryl Fluorine fumigation gas to the fumigation space. It heats sulfuryl fluoride gas to 100°C, 200°C, 300°C and 360°C and then releases it into the target.

It can be seen that the drug fumigation and insecticidal method of the prior art has a large amount of drug residues, which is not conducive to the safety of food and traditional Chinese medicine, and a method for reversing the traditional drug fumigation and insecticide in the industry is urgently needed; secondly, the existing drug fumigation has a significant effect on adult insecticidal. However, the insecticidal effect on insect eggs in the equipment is not good. Therefore, through scientific research and long-term practice, the inventor believes that it is necessary to technically improve the existing drug fumigation and insecticidal methods in the industry to solve the above-mentioned technical problems.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned technical problems, the present invention provides a kind of hot air fumigation and insecticidal method, which is specifically realized by the following technical solutions:

A hot air fumigation insecticidal method according to the present invention comprises the following steps:

S1: Clean up the workshop and remove all movable combustibles from the workshop to prevent spontaneous combustion of combustibles in the workshop during fumigation;

S2: Prefabricated protection insulates the immovable instrumentation equipment in the workshop; it is used to prevent high temperature damage to the instrumentation in the workshop;

S3: The modulation workshop opens all the soft connection windows of the equipment in the workshop and cleans up the internal impurities and the residue of the original raw materials, which is used to open the air duct for the hot air flow in the workshop to make the hot air exchange smoothly in the workshop;

S4: The airtight workshop seals all the air leaks in the workshop and isolates the hanging holes;

S5: Arrange hot air generating device and temperature control device to control the temperature of fumigation workshop and fumigation;

S6: Fumigation, start the hot air generator to supply heat to the workshop, and the fumigation temperature of the workshop is 45-75 ℃ for 72-24 hours.

Preferably, in S6, fumigation, the hot air generator starts to supply heat to the workshop, and the fumigation temperature of the workshop is 50-70°C for 30-20 hours.

Preferably, in S5, live insect samples are added to observe and verify the insecticidal effect of fumigation; the live insect samples are located at the corner of the workshop and at the docking point of the equipment in the workshop.

Preferably, the hot air generating device is a hot air blower, and a plurality of the hot air blowers are arranged, and one hot air blower of 30-50 KW is arranged for every 350-500 m ³ .

It is preferable to set up a thermal imaging system inside or outside the workshop to observe the fumigation and insecticidal effect of the equipment and the entire workshop.

Preferably, the hanging object hole is sealed with a plastic film for isolation to prevent the rise of hot air.

Beneficial effects of the present invention: the present invention creatively breaks the traditional method of fumigation and insecticide by using high temperature fumigation, and scientifically controls the fumigation temperature to be 55-65°C, which can effectively kill adults and eggs, and can protect the workshop. Instrumentation, its insecticidal effect is good, efficient and safe. The present invention adopts the physical fumigation method without any drug residue, so it can ensure the safety of food, traditional Chinese medicine and other items, and the environmental protection does not harm the air and the environment. Other beneficial effects of the present invention will be further described with reference to the following specific embodiments.

Description of drawings

Figure 1. Insecticidal effect diagram.

Detailed ways

As shown in the figure: a hot air fumigation insecticidal method of the present invention comprises the following steps:

S1: Clean up the workshop and remove all movable combustibles from the workshop to prevent spontaneous combustion of combustibles in the workshop during fumigation; the combustibles include paints, washing oils, fire extinguishers, etc. that are commonly found in the workshop to prevent spontaneous combustion during fumigation, Of course, in order to avoid the nature of movable electronic products, such as electronic scales, electronic watches, etc. are also removed from the fumigation workshop.

S2: Prefabricated protection insulates the immovable instruments and equipment in the workshop; it is used to prevent high-temperature damage to the instruments in the workshop; for the convenience of fumigation, saving the time of the whole fumigation process, and improving the efficiency of fumigation, it is necessary to avoid disassembling the equipment as much as possible. It can protect the electronic equipment that cannot be removed, such as the control instrument installed with the equipment, etc. with thermal insulation cotton cover.

S3: The modulation workshop opens all the soft connection windows of the equipment in the workshop and cleans up the internal impurities and the residue of the original raw materials, which is used to open up the air duct for the hot air flow in the workshop to make the hot air exchange smoothly inside the workshop; The cleaning window is opened, for example, the reclaiming hole of the chute is opened and the material in the chute is emptied, and the upper cover of the auger, the unloading door is cleaned and opened, etc., so that the hot air can be poured into the equipment, which is more effective in the high temperature fumigation stage. Dead eggs deposited in equipment.

S4: The airtight workshop seals all the air leaks in the workshop and isolates the hanging object hole; in order to reduce heat loss and ensure the effective fumigation temperature in the workshop and equipment, the workshop is fully sealed, especially the hanging object hole is isolated to avoid its influence Effective fumigation temperature in the workshop. Further, the hanging object hole can be isolated by plastic film sealing and isolation. Specifically, the plastic film can be placed on the workshop wall at the hanging object hole, so that the space of the hanging object hole in the plastic film can be separated from the plastic film. The space outside the membrane is isolated to prevent the rise of hot air, ensuring the effective fumigation temperature of each workshop or the entire factory building.

S5: Arrange hot air generating device and temperature control device to control the temperature of fumigation workshop and fumigation;

S6: fumigation, start the hot air generator to supply heat to the workshop, the workshop fumigation temperature is 45-75 ℃, and lasts for 72-24 hours. Adults, larvae and eggs are kept at about 50°C for more than 24 hours in the environment, the water in the worms evaporates, and the protein denatures solidifies and dies. The working environment temperature of electrical components is -20℃--60℃, and its temperature resistance temperature is generally 65-70℃. As the optimization of the above scheme, in S6, fumigation starts the hot air generating device to supply heat to the workshop, and the fumigation temperature of the workshop is at 50-70°C for 30-20 hours. In the present invention, the preferred workshop fumigation temperature is 60°C for 24 hours. Its insecticidal effect is shown in Figure 1.

In this embodiment, in S5, a live insect sample is added to observe and verify the insecticidal effect of fumigation; the live insect sample is set at the corner of the workshop and the docking point of the equipment in the workshop. The live insect samples shown can be stored in a transparent glass container or a container made of the same material and thickness as the equipment, which can verify the insecticidal effect of fumigation, and can count the mortality or survival of live eggs and live insects. Wind direction and hot air outlet temperature to ensure insecticidal effect.

The hot air generating device is a hot air blower, and a plurality of the hot air blowers are arranged, and one hot air blower of 30-50 KW is arranged every 350-500 m ³ . Through repeated and long-term experiments, the inventor has found that 400m ³ 1 hot air blower can not only achieve and ensure the continuity of the insecticidal temperature, but will not cause excess hot air blowers, effectively improve the utilization rate of equipment resources and reduce power consumption, and its economical good sex. 350-500m ³ Set the number of hot air blowers and the number of hot air blowers, as shown in the following table:

Hot air blower power (KW) Workshop volume (m³) Running time (h) Pest survival rate (%) 40 300 30 86 50 300 twenty four 93 60 300 20 98.3

In this embodiment, a thermal imaging system is installed inside or outside the workshop to observe the fumigation and insecticidal effect in the equipment and the entire workshop.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be Modifications or equivalent substitutions without departing from the spirit and scope of the technical solutions of the present invention should be included in the scope of the claims of the present invention.

Claims (6)

1. a hot air fumigation insecticidal method, is characterized in that: comprise the steps: S1: Clean up the workshop and remove all movable combustibles from the workshop to prevent spontaneous combustion of combustibles in the workshop during fumigation; S2: Prefabricated protection insulates the immovable instrumentation equipment in the workshop; it is used to prevent high temperature damage to the instrumentation in the workshop; S3: The modulation workshop opens all the soft connection windows of the equipment in the workshop and cleans up the internal impurities and the residue of the original raw materials, which is used to open the air duct for the hot air flow in the workshop to make the hot air exchange smoothly in the workshop; S4: The airtight workshop seals all the air leaks in the workshop and isolates the hanging holes; S5: Arrange hot air generating device and temperature control device to control the temperature of fumigation workshop and fumigation; S6: fumigation, start the hot air generator to supply heat to the workshop, the workshop fumigation temperature is 45-75 ℃, and lasts for 72-24 hours. 2. The method for killing insects by hot air fumigation according to claim 1, characterized in that: in S6, the fumigation starts the hot air generating device to supply heat to the workshop, and the workshop fumigation temperature is at 50-70° C. for 30-20 hours. 3. hot air fumigation insecticidal method according to claim 1, is characterized in that: in S5, add live insect sample, for observing and verifying fumigation insecticidal effect; Described live insect sample is located in workshop corner and in workshop Device docking point. 4. hot air fumigation insecticidal method according to claim 1, is characterized in that: described hot air generating device is hot air blower, and described hot air blower is arranged in multiple, according to every 350-500m ³ set 1 30-50KW generator hot air blower. 5 . The hot air fumigation and insecticidal method according to claim 1 , wherein a thermal imaging system is arranged inside or outside the workshop to observe the fumigation and insecticidal effect in the equipment and the whole workshop. 6 . 6 . The hot air fumigation and insecticidal method according to claim 1 , wherein the hanging object hole is sealed and isolated with a plastic film for isolation to prevent the rising of hot air. 7 .

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