What kind of air compressor is needed for biological fermentation

Oil-free air compressors are most suitable for the biological fermentation industry.

Biological fermentation is not equivalent to different fermentation, because the staff has almost extremely strict standards for the various indicators of air. In the field of industrial production, most air compressors are used, and their purpose is to provide clean and oil-free compressed air for the fermentation tank, which helps to avoid deterioration of the fermented material.

Energy saving demand is prominent

it should be noted that the power consumption of the air compressor only accounts for nearly 45% of the energy consumption of the entire fermentation plant. However, according to the fermentation process and actual use, it is necessary to choose a compressor that matches it, and the relatively complete maintenance work in the later period can not only effectively ensure product quality, but also effectively reduce energy consumption. In the process of normal use, it is necessary to avoid the air compressor as much as possible to vent or run in the unloading state, which can not only effectively avoid unnecessary wear rate, but also reduce the waste of energy.

The need for water removal and sterilization

in order to ensure the aseptic requirements of the fermentation tank air, the compressed air also needs to be processed by special equipment to achieve the requirements of sterility. At the same time, it is also in order to effectively ensure that the gas can be worked in a relative humidity environment. Considering the overall energy consumption of the preparation of sterile compressed air is relatively large, and the pressure level of the outlet is also closely related to the selection of the entire equipment and the design of the pipeline. Therefore, it is necessary to consider comprehensively when designing to determine the appropriate outlet pressure in order to reduce energy consumption. At present, the country is also vigorously promoting the promotion of new technologies and new equipment in the fermentation industry, so as to reduce the production cost of enterprises and increase the added value of products.

We need to understand the conditions in which microbes live. The survival and reproduction of microorganisms requires several conditions: nutrition, temperature, pH, oxygen content, moisture, radiation, etc. Two conditions of temperature and moisture are involved in the compressor. Then look at the two conditions of the compressor is suitable for the growth and reproduction of microorganisms.

Temperature: Environmental microorganisms can be divided into three categories: low-temperature microorganisms, medium-temperature microorganisms and high-temperature microorganisms according to their growth temperature range. Their survival temperatures are -12~30°C,10~45°C and 25~70°C, respectively. High-temperature microorganisms are suitable for growing at temperatures above 45-50°C, and their distribution in nature is limited to certain areas, such as hot springs, sunny soil surface, compost, fermented feed and other decaying organic matter, such as compost. The temperature can reach 60-70°C. Pasteurization is to use 62~65 degrees or 75-90 degrees can kill 99% of the microorganisms in food.

The water-jet compressor evaluated the risk of microbial survival by simulation tests. Although there is water in the air compressor and the temperature is about 60°C, the microorganisms will die in the running compressor when they are under pressure due to the compressor conditions (temperature, pressure). It can be seen from the air produced by the compressor that even under the condition of serious water pollution, no microorganisms remain in the discharged air.