Zhejiang Longsheng Group Longshan Chemical Nitric Acid Branch has made full use of the ingenuity of frontline employees, and made small changes to the hidden problems in the production process, and achieved good results.
The liquid ammonia tank truck of the company's product storage area is prone to management misoperation and valve leakage during the filling and delivery process. For this reason, the company's employees have carried out a series of optimization and modification of the liquid ammonia loading and unloading arm. Firstly, the loading and unloading arm is equipped with a positioning device and fixed by a lock. The key is kept by a special person to prohibit the non-filled personnel from operating illegally. Secondly, a chain insurance positioning pin is added at the handle of the loading and unloading arm filling valve to prevent the filling operation. The front filling valve is opened by mistake; in addition, an annular anti-loose sleeve is added to the locking buckle of the quick-release joint of the loading and unloading arm to prevent the locking buckle from loosening and causing leakage. Through these small reforms, the safety risks in the liquid ammonia filling operation are eliminated to the utmost extent, and a safety lock is tightened for the liquid ammonia filling operation.
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