61results about How to "Increase flue gas volume" patented technology

The invention relates to a low-temperature calcining process for petroleum coke, particularly a low-temperature calcining process for a pot furnace for producing anodes, cathodes and electrodes for aluminum in a carbon industry and petroleum coke in a special carbon industry. By controlling the flame path temperature and the discharge speed of the pot furnace, the calcining temperature range of petroleum coke in a material pot is ensured at 1150-1220 DEG C, the discharge speed which is 10-20% higher than a normal discharge speed reaches 110-120 kg / h, and the sulfur removal amount in the calcining process of petroleum coke is reduced, so that the true density of calcined coke is ranged from 2.05 g / cm3 to 2.07 g / cm3, and an over-calcined phenomenon that the calcined coke for producing prebaked anodes in the pot furnace is avoided. As a result of a relatively low calcining temperature and shorter standing time, the sulfur removal amount in the petroleum calcining process is reduced, and the content of sulfur dioxide in flue gas and the flue gas purifying pressure are reduced; as the furnace body temperature is reduced and the sulfur removed is reduced, corrosion of sulfur in the petroleum coke on silica bricks is alleviated, so that the service life of the furnace body is greatly prolonged under the condition that the pot furnace calcines high-sulfur coke; and acceleration of the discharge speed further improves the capacity of the pot furnace and improves the flue gas amount of a system, thereby favorably increasing the capacity of waste heat steam.