Chemical and pharmaceutical harmful gas filtering equipment with partial pressure filtering function

Abstract

The invention discloses chemical and pharmaceutical harmful gas filtering equipment with partial pressure filtering function. The harmful gas filtering equipment comprises: a tank body, a bracket, a dirty material outlet, a gas inlet pipe, a partial pressure gas filtering device, a gas-pressure meter, a movable cover and an adjusting knob piece. Air flow is subjected to split-flow installation tobe subjected to filtering treatment; therefore, the phenomenon that gas is locally injected into the tank body due to the instantaneous pressure of the gas in the tank body and a thinned position on the wall under the long-term action can be avoided; thus, rust is generated, under the effect of the components of the rust, the rust is removed; the rust and the harmful gas are subjected to a chemical reaction again; dirt on the inner side wall of the tank body is removed through the rotary scraping mechanism; the rotary scraping mechanism is arranged in the tank body to prevent part of gas whichcannot be treated by activated carbon in the tank body from generating gas-solid reaction with dirt, and meanwhile, the dirt scraped off by the rotary scraping mechanism is further treated under theaction of the wall slag structure, so that the normal use of an air filter of equipment is ensured, and the filtering abrasion of the equipment is reduced.

Description

Technical field [0001] The invention relates to the technical field of chemical and pharmaceutical filtration, and more specifically, is a harmful gas filtration equipment for chemical pharmaceuticals with partial pressure filtration. Background technique [0002] With the gradual improvement of my country’s medical industry, the field of pharmaceutical technology has also been gradually improved, and because the chemical pharmaceutical is produced by a variety of chemicals or bacteria in the production process, a large amount of Therefore, in order to ensure the safety of pharmaceutical personnel, harmful gas filtering equipment is usually installed in the workshop to filter the air. [0003] However, due to the uninterrupted harmful gas generated during the pharmaceutical industry, after the gas is introduced through the inlet pipe, the circulation pressure of the gas is large, and it is directly directed at the tank for input. Under long-term action, the inner wall of the tank D...

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Problems solved by technology

[0003] However, because the harmful gas produced during the pharmaceutical process is continuous, after the gas is introduced through the intake pipe, the circulation pressure of the return gas is relatively high, so it is directly directed at the tank body for input. Under long-term effects, the inner wall of the tank Due to the direct impact of the harmful gas, the wall pipe appears to be thin, causing a small amount of rust on this part. At the same time, under the action of the rust's own components, it will react chemically with the harmful gas, resulting in the emergence of new gases and At the same time, while the harmful gas is being filtered inside the tank, the filtered impurities are easily trapped on the inner wall of the tank under the action of air pressure, resulting in a large amount of impurities appearing on the inner wall of the tank. Under the action, it will affect the work of the equipment

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