Coking plants resume operations
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Demand for coke remains strong on a stable level, and many coking enterprises that had suspended operations for maintenance are considering resuming production. From a technical perspective, what aspects need to be taken into account when restarting coking operations? I would appreciate the advice of experts
The main factors are environmental protection and safety; if these two criteria are not met, it’s hard to say what the demand for and price of coke will be.
Environment protection, environment protection, environment protection. If environmental standards aren’t met, everything gets a zero
In coking plants that are generally shut down for maintenance, the coke ovens are also shut down and have cooled to room temperature. At this time, if production is to resume, the biggest issue lies with the furnace. When the coke oven is cooled from a temperature of over 1300 degrees during production to normal temperatures, cracks of varying degrees will inevitably appear inside and outside the oven. For a coke oven in use, integrity is of paramount importance; without it, nothing else can function properly. It is necessary to repair the oven from the inside out while it is cold, and in some cases, the bricks must be replaced to ensure that the oven meets the integrity requirements for production ； The second step is to bake the furnace. Then there are various devices on the furnace body, such as tie rods, springs, furnace columns, protective plates, rising tubes, and exchange systems; any defective devices should be replaced while the furnace is at room temperature. It’s quite troublesome anyway; the investment requires tens of millions or even hundreds of millions.