Flame path structure of carbon calcinator
A fire path and calcination technology, which is applied in the field of carbon calcination furnace fire path structure, can solve the problems such as the large influence of the furnace body structure, and achieve the effects of reducing the impact of local burning loss, improving quality and prolonging the service life
Active Publication Date: 2020-08-18
GUIZHOU BRANCH CHINA ALUMINUM IND
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This method has a great influence on the structure of the furnace body
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[0036] In a prebaked anode factory, the calciner has 8 layers of fire channels, and the uppermost layer of the fire channel is equipped with a mixed combustion chamber 13. The gas outlet 16 and the flue gas outlet 16 are connected with the flue gas inlet 11 on the front wall of the uppermost fire channel, and the fuel inlet 14 is arranged above the smaller section (that is, near the flue gas outlet), and the function of the mixed combustion chamber 13 is Ensure the negative pressure of the fuel introduction hole and avoid surface tempering. The bottom of the mixed combustion chamber 13 is provided with an air inlet 16 for the entry of preheated air, which is controlled by a pressure regulating insert. Under the action of negative pressure, the preheated air tangentially enters the mixed combustion chamber 13 and is fully mixed with fuel for combustion. The burning flame passes through the smoke inlet hole and accelerates into the fire channel. As the space in the fire channel ...
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The invention discloses a flame path structure of a carbon calcinator. The flame path structure comprises a flame path cavity defined by two side walls, a front wall, a rear wall, a top plate and a bottom plate. A plurality of layers of horizontal partition plates which are uniformly distributed at intervals from top to bottom are arranged in the flame path cavity, the horizontal partition platesare arranged in a staggered manner to form an S-shaped flame path, at least one layer of horizontal flow guide bricks is arranged in each layer of flame path, and a smoke inlet hole is formed in the front wall of the uppermost layer of flame path; a co-combustion chamber is arranged outside the flame path cavity, a fuel inlet is formed in the top of the co-combustion chamber, an air inlet is formed in the bottom of the co-combustion chamber, a smoke outlet is formed in the side wall of one side of the co-combustion chamber, and the smoke outlet is connected with a smoke inlet hole formed in the front wall of the uppermost flame path. According to the carbon calcinator flame path structure, calcinating fuel and combustion air can be effectively mixed, airflow in the flame path is homogenized, temperature distribution is balanced, the influence of uneven temperature on local burning loss of refractory materials is reduced, and therefore the quality of calcined petroleum coke is improved,and the service life of a calcinator body is prolonged.
Description
technical field [0001] The invention relates to a carbon calcination furnace, in particular to a fire path structure of a carbon calcination furnace. Background technique [0002] Carbon calciner is a metallurgical furnace for carbon production, and it is the main equipment for calcining carbonaceous materials such as petroleum coke and anthracite. The carbonaceous material is calcined in the calciner, and the fuel is the combustible volatile matter contained in the carbonaceous material itself or an external fuel. [0003] The calcination process is an important raw material heat treatment process in the aluminum anode, cathode, electrode and other industries. The strength and density of the calcined carbonaceous materials are increased, and the physical and chemical indicators meet the requirements of subsequent processes. [0004] The calciner is mainly composed of material tank, fire channel, insulation wall and other structures. Volatile matter or external fuel is bur...
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Login to View More IPC IPC(8): C01B32/05F27B17/00F23D14/02F23D14/46
CPCC01B32/05F27B17/00F23D14/02F23D14/46
Inventor 孙丽贞陈开斌茹德敏蒋杨罗钟生杜婷婷
Owner GUIZHOU BRANCH CHINA ALUMINUM IND