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Key points for methanol filling operations I. Preparatory work before filling: 1. The personnel carrying out the filling operation must wear protective goggles or face shields, as well as rubber gloves as protective equipment. ⒉Contact the on-duty dispatcher and team leader before filling. II. Inspect the tank truck before filling; the inspection items include: 1. Check the inspection marks and nameplate to ensure that their expiration dates have not passed. . ⒉Tanks must be equipped with safety valves and inlet/outlet valves, and their seals must be intact, reliable, and effective. Protective covers must be installed on any exposed pipes and valves on the tank. ⒊If there is residual liquid in the tank, it is necessary to determine the name of the material contained in it. ⒋The transport vehicle must be in good condition, and the tank must be securely fixed to the vehicle body. ⒌It has no obvious deformation or damage on the outside, and is equipped with appropriate safety devices such as those for dissipating static electricity. ⒍Vehicle exhaust pipes must be equipped with flame arresters and electrical systems, as well as devices for cutting off the main power supply and preventing electric sparks. ⒎Vehicles should be equipped with the necessary gas protection and fire-fighting equipment (two of each). ⒏Drivers of vehicles transporting methanol, as well as escorts, must hold a license for the transportation and escort of methanol (a hazardous chemical). III. Key points for filling methanol tank trucks 1. The personnel responsible for filling must receive training and education, pass examinations, and hold valid certificates to carry out their duties; this team should remain stable, with no arbitrary changes in personnel. ⒉When a new tank truck is first filled after maintenance, or when there are materials of unknown identity in the tank, it is necessary to report to the Safety and Environment Department, which will then instruct the QC laboratory to take samples for analysis of the substances in the tank. ⒊Tank trucks must be weighed before filling. ⒋Before filling the tank truck, it must be parked steadily in the designated location before proceeding with the following procedures: apply the brakes, engage the handbrake, and turn off the engine. ⒌Adjust the outlet valve of the filling pump once it is confirmed that there is no leakage, being careful not to fill the methanol too quickly. ⒍During filling, it is necessary to carefully monitor changes in the temperature and liquid level of the tank truck. If any abnormalities are detected, the filling pump should be stopped immediately, the pump’s outlet valve closed, as well as the tank truck’s emergency shut-off valve, in order to resolve the issue promptly. ⒎Once the filling volume is reached, immediately close the outlet valve of the filling pump, stop the pump, close the output valve, and remove the dip pipe to prevent methanol from spilling on the floor. ⒏When filling a tank truck, it is necessary to carefully fill in the filling record, date, unit, truck number, capacity, initial and lowest liquid levels, the start and end times of filling (hours and minutes), as well as the name of the person who carried out the filling. IV. Precautions for methanol tank trucks ⒈ The pumps used for filling, as well as the dipstick pumps, must come with certificates of conformity; they should also undergo pressure tests, and regular inspections and maintenance should be carried out. . ⒉If a leak is detected at the start of or during filling, the outlet valve of the filling pump should be closed immediately, the pump stopped, and the outlet valve of the storage tank shut off, before addressing the leak. ⒊Stop filling immediately in case of thunderstorms or a fire in the vicinity. ⒋The filling personnel must stay at their posts and are not allowed to leave without permission. . ⒌The filling speed should not be too fast to prevent methanol from splashing out.