Compound apparatus for fumigant

Abstract

The invention belongs to the technical field of fumigation, and particularly relates to a fumigant compounding device used for preparing compounded fumigant. The fumigant compounding device provided by the invention is characterized in that an air inlet is formed at the top part of a steel bottle in the shape of a long column; an air-inlet valve is mounted at the air inlet; a vacuum meter and a manometer are mounted in drill-holes on two sides of the air-inlet valve respectively; needle valves are arranged on pipelines through which the vacuum meter head of the vacuum meter and the manometer head of the manometer are connected with the steel bottle; needle valves are mounted in drill-holes at the upper, the middle and the lower parts of the bottle body of the steel bottle; and the air outlets of the needle valves in the three positions on the bottle body of the steel bottle are taken as sampling ports for compounding fumigant. When being used for experimental research, the fumigant compounding device provided by the invention can ensure the convenience of sample despite of larger pressure, and is timesaving and safe.

Description

technical field [0001] The invention belongs to the technical field of fumigation, in particular to a compounding device for fumigants used in preparing compound fumigants. Background technique [0002] The currently used fumigants mainly include methyl bromide, ethylene oxide, sulfuryl fluoride, and phosphine. The development of a new fumigant will be very expensive in terms of time and capital investment, and there is a relatively high risk. In addition, single-component fumigants often cannot meet the requirements of production practice. For example, sulfuryl fluoride has good penetrability, kills adults, larvae and rodents of insects, and has low residues. It is a good fumigation agent, but the effect of killing insect eggs is poor, and it has no bactericidal effect. Combining fumigants with different functions or drugs containing other ingredients to give full play to their respective strengths can better serve many aspects such as quarantine treatment, food preservati...

AI Technical Summary

Problems solved by technology

For example, Liu Xiaozhen and others studied the disinfection, insecticide and rodent control effects of sulfuryl fluoride and methyl bromide in the container, but they could not use this method to determine the compound formula of the two fumigants (Chinese Journal of Vector Biology and Control, 2005 February, Volume 16, Issue 1, p19~20)

Due to the different molecular weights of various fumigants, when they are compounded together, especially when they are in a liquid state in a pressurized steel cylinder, stratification often occurs, and they cannot be fully mixed, resulting in compounded fumigants sprayed from the pressure vessel. The components of the fumigant have large deviations, which brings difficulties to the development of compound fumigants

Images