Transformed circulating nitrogen Roots blower
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We use a modified catalyst rotary blower to maintain nitrogen circulation, and carry out sulfidation with CS2 and H2. However, the airtightness of the fan housing is poor; bubbles appear at the sealing area of the fan casing when a pressure of 0.3 MPA is reached. Can such a fan be used for heating during vulcanization?
It is recommended to replace or repair the Roots blower; otherwise, it will result in both nitrogen waste and environmental pollution.
Reply to 2# Yan Qiusheng: It has been taken back to the factory for repairs twice, but it still doesn’t work. Polluting the environment is a minor issue; the main problem is the strong odor inside the fan’s soundproof enclosure, which could lead to poisoning or other problems. I can see that the quality of the pouring is very poor; it seems the company isn’t planning to replace it yet
Environmental issues are not trivial either. Of course, human safety comes first – isn’t there an exhaust fan inside the soundproof enclosure? Turn it on
When the fan is turned on, draw a warning line beside the soundproof enclosure door, enter the enclosure and wear a portable gas detector, and assign someone to supervise the process. Since the fan isn’t turned on frequently either, it of course depends on the leakage concentration as well
This post was last edited by 654262293 on 2010-10-16 13:16. What is the outlet pressure of your nitrogen blowers? Ours is only 0.1 MPa; even when the airtightness of the nitrogen heating vulcanization system is increased to 0.2 MPa, there is some leakage, but it’s not severe enough to prevent vulcanization from taking place. However, it’s necessary to set up warning barriers in the surrounding area, and care should be taken during inspections.
During vulcanization, the pressure does not need to be very high; around 0.2 MPa is sufficient. It is important to monitor the operation of the fan, ensure proper ventilation, and prioritize safety.