Is a formal dip pipe required to fill a tank truck with tar?
Thread Content
In some smaller coking plants, the conveying equipment used to transfer tar from storage tanks into road tankers is not a dip pipe, but rather a straight pipe with a diameter of φ50 that points downward. Is this in compliance with safety requirements? Please discuss.
If you’re not afraid of accidents caused by static electricity, you can give it a try. What does \"safety first\" mean?
Tar should be fine; if it’s benzene or acids, then it’s dangerous.
Let me share some personal views: In fact, a flexible hose is simply a device that consists of a rotatable joint with good sealing properties connected in series with a pipe; it is used to transfer liquid media between tank trucks and the storage and transportation pipelines at wharves. Purpose: Used for transferring liquid products between a jetty and road or rail tankers. Loading and unloading method: A. Open-top loading and unloading on the tank truck; B. Closed-top loading and unloading on the tank truck; C. Loading and unloading from the bottom of the tank truck. Features: Dual-rail rotary joints and sealing rings with elastic clips ensure that no leakage occurs of the medium being handled ； The spring cylinder balancer with adaptive balance makes the loading and unloading arm easy to operate and requires less effort ； During loading and unloading, within the normal movement range of the tank truck and in conjunction with its movement ； When the loading/unloading arm is in its retracted position, the lock is aligned parallel to the direction of travel of the tank truck, resulting in minimal space occupation ； It has a rational structure, achieving the most appropriate envelope range with the smallest arm size. The use of flexible hoses is mainly due to advantages such as convenience, leak-free operation, and low space occupation. If a φ50 downward-facing straight pipe is used as suggested by the original poster, there should be no major problems, but it will be inconvenient to move around while in use. For some specific information on flexible hoses, you can visit this link: http://hi.baidu.com/amycream29/b ... 61a8ad5edf0e30.html.
Regardless of the type of pipe used, for liquids that tend to generate static electricity, the delivery pipe should extend as far down as possible to prevent static electricity from being generated due to liquid splashing