Analyze the accidents that are common or occasionally occur during railway shipping
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For example, fires caused by static electricity during loading, or other such incidents. I have summarized the key points to keep in mind during loading; if anything is missing, I hope everyone can help to supplement it. 1. After receiving instructions from the station dispatcher, the personnel responsible for loading should make preparations before starting the process, assist in positioning the vehicle correctly, determine the type, quantity, and timing of the oil to be loaded as per regulations, and then coordinate with the tank farm to arrange the corresponding procedures. 2. Carry out the loading operation; check again to ensure that the loading equipment is in good condition. Once the process is confirmed to be correct, place the flexible hose at the bottom of the tank truck, open the corresponding loading valves, connect the static electricity clamp, and inform the pump room in the tank area to start pumping oil. During the loading process, it is necessary to control the flow rate properly; generally, the flow rate for light oil should be kept between 1 and 4.5 m/s. When the tank truck is filled to 3/4 capacity, the flow rate should be reduced to below 1 m/s, mainly to prevent static discharge accidents. When there are still 10–15 tons left to reach full capacity, it is advisable to contact the tank area 15 minutes in advance to have someone monitor the pump. Once only 2 tons remain, the pump should be stopped. During loading, the amount should not exceed the limit; a margin of 1 ton should be left, mainly to prevent overfilling and to provide space for the evaporation of oil vapors. 3. After loading is complete, close the valve at the loading flexible hose. At the same time, inform the pump room to stop pumping, and carry out reset operations for equipment such as the flexible hose, escalators, and covers. Additionally, conduct thorough measurements and take accurate records.
Excuse me, Count, are all railway tank cars equipped with static grounding clamps?
By the way, how long does it usually take you to install one vehicle? Including gauge checking?
Due to work reasons, I came straight here to read this post as soon as I got off work. I’m very sorry to have kept the two gentlemen on the 2nd and 3rd floors waiting for so long. Now I’ll answer their questions. Regarding the static electricity clamps, they are essential; when it comes to production, static electricity is an issue that cannot be ignored. As for the control time during loading, it is determined based on the flow rate from the tank area to the railway. When the flow rate is high, 3–6 tank cars can be filled simultaneously, but it’s still necessary to control the flow rate to prevent static electricity-induced fires. The reason I posted this thread isn’t related to my job position; it’s simply to share ideas and discuss things with everyone. Also, I’ve been on this forum for only a short time, and this is my first post. Thank you all for your active comments. If there are any shortcomings, please feel free to criticize. I hope everyone has a smooth and happy work life. By the way, I’d like to clarify that the static electricity clamps are connected to the lower part of the dip pipe, and they are not built into the tank cars themselves. This post was last edited by aymzj on 2009-3-1 at 07:58
Mr. Count, based on your description, your loading facilities must be from at least the 1980s; am I correct?
I’m not really familiar with high-end loading facilities after all; my working experience is still quite short. You’re absolutely right – our facilities are indeed outdated, and we need time to improve them as we move forward with operations. It’s for this reason that this communication platform exists; I hope everyone will participate actively in the discussions here :)
After reading everyone’s discussions above, I think Count and I are from the same company. Our company’s railway loading control system is fairly good; it includes batch controllers, flow meters, and hydraulic control valves. Pneumatic transfer hoses are divided into two types: those used for loading gasoline are sealed pneumatic hoses, while those used for loading gasoline, diesel, and jet fuel are manual transfer hoses.
Thank you to the person upstairs for sharing the materials