【Basic Knowledge of Haichuan Coke Oven System 013】What are the technical features of rapid coal loading in 7.63-meter coke ovens?

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What are the technical features of rapid coal charging for 7.63-meter coke ovens? (1) The charging system has absolutely no air leaks. The general approach to reducing dust emissions is to ensure that the loading system is completely airtight. The general approach to reducing soot emissions is to collect and treat the emitted soot. The concept of this technology, however, is to use a completely sealed system that keeps the flue gas generated during coal charging within the closed environment of the carbonization chamber, preventing any escape of the gas. This minimizes pollutant emissions during coal charging, while also eliminating the need for subsequent soot collection and purification processes. This device features airtight sealing measures at the space between the coal loading hole and the gate sleeve, at the connections of all gate sleeves, and at the discharge port. (2) One print medium. To ensure that no pollutants escape during the entire coal loading process, in addition to using the airtight sealing devices mentioned above, it is also necessary to ensure that the gases generated can be discharged smoothly through the rising tubes; in other words, the pathways for raw coal gas within the carbonization chamber must remain unobstructed throughout the coal loading process. Therefore, this technology employs the minimum number of coal leveling operations; that is, no coal leveling is done during the coal loading process, and it is only performed once after the loading is completed. But the prerequisite is to ensure a clear gas passage between the coal pile in the carbonization chamber and the top of the carbonization chamber throughout the coal loading process. (3) Control coal loading. To ensure that the gas passages remain unobstructed after coal is loaded and during coal leveling, it is first necessary to prevent overloading of each coal hopper. At the same time, ensure that the height deviation of the coal piles at each coal inlet does not exceed 50 mm. Therefore, a method of controlled coal loading must be adopted, that is, independent coal loading through each loading hole, with the volume of each coal pile precisely controlled by weighing devices and variable-frequency motors to meet the above requirements. (4) Coal loading simultaneously. When using the aforementioned control coal loading technology, simultaneous coal loading must be employed, that is, the rotary feeders at the discharge openings of each coal hopper must start and stop at the same time. If a coal peak in the carbonization chamber forms earlier or later than expected, it will affect the volume of the adjacent coal peaks, thereby obstructing the gas pathways. During simultaneous coal loading, each pile of coal forms a contact line between the carbonization chamber and the adjacent piles. By controlling the coal loading, it is ensured that each coal peak is formed from coal from its own hopper, which in turn guarantees unobstructed gas flow in the top part of the carbonization chamber.