Gas and oil storage industry gas mask

The grain storage and storage industry mainly refers to the local government grain bureau, grain management and other departments. On April 20th, 2012, the State Administration of Safety Production and Supervision issued to each subordinate grain storage unit: “Self-absorption filter gas mask Not suitable for all kinds of grain and oil storage and processing companies." Then, we can not help but ask why self-priming filter gas mask is not suitable for storage industry? In the end the warehousing industry needs to choose which kind of gas mask ? The following small series to give you detailed answers.

I. Why does the grain and oil storage industry not use self-priming gas masks ?
The first thing to understand is that the self-absorption filter type gas mask mainly refers to the type B respiratory protection product. The gas mask generally contains a filter box. Its working principle is to rely on the user's respiratory pressure difference to obtain the filtered filter box after filtration. Air, but exhaled gas can not be discharged through the filter box. It flows through the exhalation valve. Self-priming filter-type gas masks are the premise of the largest use of the operating environment must have sufficient oxygen content (oxygen content of not less than 19.5%), and the selection of the filter box must be able to effectively prevent the intrusion of toxic gases in the environment.
However, in the grain and oil warehousing industry, phosphine circulation fumigation is generally used to use equipment for forced fumigation of gas circulation, prompting its rapid and even distribution in the grain piles, thus killing more quickly and thoroughly. In this case, the biggest problem for everyone when working is that the warehouse is flooded with a large amount of phosphine gas, and the oxygen content is extremely low; at the same time, the gas masks used must be able to effectively protect the human body from damage caused by hydrogen sulfide. The combination of these two factors, self-priming gas mask can not be satisfied, once the use of such gas masks, will inevitably lead to the operation of human poisoning.
Second, what kinds of gas masks can be used in the grain and oil storage industry?
Since it is low in oxygen and contains toxic and toxic gases, it is recommended that you use isolated gas masks . Insulating gas masks have higher protection levels than self-priming filter gas masks and belong to Class A respiratory protection products. They mainly include long tube respirator and air respirator. Although both can directly isolate the toxic substances from the human body's breathing contact, the working principle is not the same. The long tube respirator is mainly used to connect the clean air source with a long tube directly to the user to breathe while the air respirator is compressed. Gas cylinders are supplied directly to the user as gas sources, and the cylinders contain compressed air.
The structure of the long tube respirator is that the user wears a gas mask and then the mask is attached to a long tube. The length of the tube can be determined according to the distance between the specific location and the source of clean air. Its biggest advantage is to wear lightweight and use it. The time is not limited, but the disadvantage is the limitation, because the length of the pipe can not be unlimited. Air respirator is just the opposite. Its advantage is that it is not affected by the location of the environment. It is more flexible. However, due to the relatively heavy gas, the user bears a certain amount of pressure, and the compressed air of the bottle is generally used for 45 minutes. Around, the use of time is limited.
Therefore, when selecting specific types of gas masks, we must choose long-pipe respirator or air respirator according to the specific environment. After ordering respiratory protection products, we must follow the product instructions and properly maintain the daily inspections. Maintenance and other work.

This website solemnly declares: This article is the reprint of the online media, only represents the author's point of view, has nothing to do with this site. If news articles and comments infringe your legal rights, please call us and we will handle it in a timely manner.