Discussion on the coal loading volume for coke oven operation
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When the coke oven is put into operation, is the coal loading amount up to the design value? Should less coal be loaded, or should the designed amount of coal be used? What are the advantages and disadvantages of each? What problems have occurred? Everyone is welcome to discuss! ! This post was last edited by z_yulei on 2009-3-25 17:27]
The coal loading capacity (on a dry basis) of our plant’s 6-meter coke ovens at startup is 21.65 tons. Moreover, the coal used has a high volatility content. Purpose: To obtain the necessary gas to connect gas collectors, etc., start the chemical production process, and test pusher rods, etc. This post was last edited by Jin Yusi on 2009-3-25 12:55]
Even when operations resume, it is necessary to ensure that each furnace is filled to as close as possible to the designed coal loading amount; however, more time should be allocated to controlling the coking time, so as to provide sufficient time for thermal management of the coke oven, equipment calibration, and adjustments to the iron components.
I hope everyone can have an in-depth discussion on this. When our plant’s coke ovens were brought online, due to time pressures, it was not possible to use flat coal rods, so coal loading began, using 2/3 of the amount normally required. Later, it was because 1, the fineness of the coal was too high, 92 ； 2. The temperature of the ammonia solution is too low ； 3. Excessively long coking time ； 4. The furnace top temperature is too high. Tar, which results in a high viscosity, clogs the intake pipe. I just want to know if the pipes would get clogged if they were filled with coal, while all other conditions remained the same. This post was last edited by Keke on 2009-3-25 15:50.]
The coke ovens that have just started operating should be filled as much as possible with coal, in order to prevent blockages in the gas collection pipes caused by excessively high temperatures in the space above the carbonization chamber
In the first cycle of a newly commissioned coke oven, two-thirds of the coal is loaded at the end.
2/3 of the coal has been loaded; filling it to capacity due to temperature can have a negative impact on the coke oven
I’ve encountered a situation where insufficient gas was available when starting the furnace due to too little coal being loaded. We checked every possible reason, and it was only later that we realized the amount of coal loaded was too low; around three-quarters of the required amount is a more reasonable level
In the first few chambers of a coke oven that has just started operation, 2/3 of the designed amount is charged, as the volatile matter content of the coal used is high. The necessary gas is generated to connect the gas collection pipes and other components and to initiate the chemical conversion process; the process is simplified as much as possible, and by returning the gas to the furnace for normal heating, coal can be loaded according to the design requirements. If the furnace is heated with gas and has returned to normal heating, coal should be loaded according to the design requirements.