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Emergency Plan for Ammonia Water Pump Failures in Coke Ovens

2009-02-15View Original

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The ammonia water pump in coke ovens is an important device for the normal operation of coke production. Ensuring the proper functioning of this pump is a key factor in maintaining safe and efficient coke production processes as well as achieving the set objectives. To ensure safe production, my workshop has developed a specific plan for providing top-level maintenance to the ammonia water pumps, assigned dedicated personnel to oversee them, and conducts regular monitoring of their operating conditions at designated locations. Carefully monitor factors such as noise, temperature, current, flow rate, and pressure changes, and keep accurate records. In the event of any abnormalities, report them promptly and notify the relevant technical personnel immediately so that they can conduct analysis and take action. Given the importance of ammonia water pumps, in addition to the regular monitoring and maintenance mentioned above, special emergency technical measures have been established to address situations involving accidents. 1. The main power supply is equipped with a dual-circuit system; in the event that one of the power supply circuits fails and loses power, the built-in double-throw switch allows for quick switching to the other power supply circuit. Its power supply comes from Power Source 1 and Power Source 2 in the main distribution room. In this way, if a power supply in a certain section of the main distribution room is interrupted due to a power outage or some other reason, it is possible to quickly switch to another power supply circuit, ensuring the safe operation of the equipment. 2. Automatic switching between two pumps: When one of the ammonia water pumps is in operation, if an overload or some other fault occurs on the load side, the thermal relay and automatic circuit breaker installed will activate, thereby quickly cutting off the power supply to the pump’s motor. After a brief delay via the time relay, it automatically switches to another ammonia water pump to operate. The personnel on duty promptly reported to their superiors and informed the relevant staff to take immediate action to restore normal operation, ensuring it could function as a backup. When the ammonia water pump is operating normally, due to its continuous operation, environmental constraints, and the highly corrosive nature of ammonia water, various types of failures are inevitable. This requires us to improve the quality of our staff, enhance their sense of responsibility, and carry out regular as well as specialized inspections to ensure the proper operation of the ammonia water pumps.
Reply #22009-02-15
If automatic switching is required, what should be done with the valves before and after the pump – do they also open and close automatically?
Reply #32009-02-25
A good question was asked upstairs – I’ve never heard of automatic switching for circulating ammonia pumps. Besides, these are all high-pressure devices. Here, for such devices we don’t supply power to those that aren’t in use; power is supplied only when they need to be operated. Moreover, there is a set of procedures for starting these large pumps, and they certainly won’t be started without first rotating the shaft manually
Reply #42009-02-25
The original poster, could you explain how the problem on the 2nd floor was resolved?

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