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Method for drying carbon anode roasting furnace

A carbon anode and roasting furnace technology, which is applied in the field of aluminum electrolytic carbon anode roasting furnace, can solve problems such as troublesome and long baking time, achieve the effects of optimizing process parameters, short baking time, and reducing the cost of baking

Active Publication Date: 2010-11-10
SUNSTONE DEV
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Problems solved by technology

[0003] In view of this, the purpose of the present invention is to provide an oven method for an annular open roaster, which can solve the problem that the oven time is long, and it is troublesome to switch from the roasting oven curve to the normal roasting production curve after the oven is finished. question

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Embodiment Construction

[0020] The invention discloses a method for baking a carbon anode roaster. The roaster chamber is an annular open roaster with 38 chambers, which uses natural gas as fuel, and the roaster adopts two flame systems.

[0021] The specific furnace loading requirements for the roasting furnace are as follows: 1# and 21# furnace chambers are filled with raw blocks and sealed furnace chambers, 2# and 22# furnace chambers are filled with waste raw blocks, and from 3# and 23# furnace chambers are loaded with qualified raw blocks. The furnace room guarantees one out, one in, and one in preparation. The combustion rack is placed in the 2# and 22# furnace chambers 2 and 4 observation holes, and the smoke exhaust rack is placed in the 4# and 23# furnace chambers. Ignite from the observation hole of 2# and 22# furnace chamber 2. After 3 flame movement cycles, move the smoke exhaust rack to add the 4th furnace chamber, and confirm whether to ignite the second row of nozzles according to whet...

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Abstract

The invention discloses a method for drying an annular open roasting furnace, which is characterized in that: (1), a 240-hour heating curve and a 240-hour cooling curve are adopted in a roasting process; and (2), combustion racks are placed in observation holes 2 and 4 of a No.2 furnace chamber and a No.22 furnace chamber, smoke exhaust racks are placed in a No.4 furnace chamber and a No.23 furnace chamber, ignition is started from the observation holes 2 in the No.2 furnace chamber and the No.22 furnace chamber, a fourth furnace chamber is added by moving the smoke exhaust racks after three flame travel periods, ignition in the observation hole 4 is determined according to the following condition of the temperature rise to the temperature curve of the drying furnace, and after each flame travel period, the smoke exhaust rack is continuously moved and a combustion rack is added till each system has three combustion racks and forms 8-chamber operation, wherein a system travel period is 30 hours. In the method for drying the carbon anode roasting furnace, the carbon anode roasting furnace is a 38-chamber annular open roasting furnace, the technical parameters are optimized effectively, the furnace drying time is shortened, the process for converting a roasting drying furnace curve into a normal roasting production curve after the furnace drying is finished is simplified, and the furnace drying cost is reduced.

Description

technical field [0001] A method for baking a carbon anode roaster relates to a method for drying an aluminum electrolytic carbon anode roaster. Background technique [0002] In the production process of carbon anode for aluminum, the roasting furnace is a very important equipment. At present, the roasting furnace adopts the six-chamber operation 360-hour baking curve, and the system movement cycle is 60 hours. After the oven is finished, relatively good results have been achieved. However, this oven method also has certain problems, that is, the oven takes a long time, and it is troublesome to switch from the roasting oven curve to the normal roasting production curve after the oven is finished, and the unit cost of natural gas per ton of anode is high. Contents of the invention [0003] In view of this, the purpose of the present invention is to provide an oven method for an annular open roaster, which can solve the problem that the oven time is long and it is troublesom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C3/12
Inventor 唐林
Owner SUNSTONE DEV
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