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Cathode roasting furnace gas burner nozzle

A gas burner and roaster technology, applied in the direction of burners, combustion methods, combustion types, etc., can solve the problems of increasing the operation and maintenance workload of the gas inlet pipe, affecting the roasting quality of the cathode carbon block, and the gas inlet is not ideal, etc. Achieve the effect of low operation and maintenance cost, small thermal shock and low implementation cost

Active Publication Date: 2007-04-11
GUIYANG AL-MG DESIGN & RES INST
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The consequences of this are: on the one hand, the steel pipe is severely deformed and corroded at high temperature, and its life is extremely short; on the other hand, the steel pipe cannot be made long enough, resulting in a local high temperature in the furnace chamber close to the furnace cover, which makes the temperature difference between the upper and lower furnaces larger.
This not only affects the roasting quality of cathode carbon blocks, but also wastes a lot of materials and energy, and also increases the workload of operation and maintenance due to frequent replacement of gas inlet pipes
Obviously, the gas inlet of the existing cathode roaster is not ideal enough

Method used

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  • Cathode roasting furnace gas burner nozzle

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Embodiment

[0015] Embodiment: The structure of the gas burner of the cathode roasting furnace is shown in Figure 1. The nozzle 1 and the nozzle 2 are all made of high-temperature resistant ceramic materials, and the lower end of the nozzle 2 is connected with the nozzle 1 by threads. The ceramic fiber 8 is filled, the length of the pipe section of the nozzle 2 extending into the furnace chamber is 500mm; the nozzle diameter of the nozzle 1 is 11mm, the length of the tapered section is 25mm, the taper is 13.5o, and the inner diameter of the nozzle 2 is 17mm; the base 3 adopts It is made of heat-resistant cast iron, and it is connected with the connection section 4 by bolts 5. The material of the connection section 4 is heat-resistant steel. The lower surface of the pipe is pressed against the upper end of the lower inner hole of the base 3, and the space formed by the connecting pipe section 4, the base 3 and the nozzle (2) is filled with ceramic fibers 8.

[0016] When working, the natur...

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Abstract

The gas burning nozzle for cathode roasting furnace has a connecting pipe, a base, a nozzle pipe and a nozzle head connected successively, and the base has the inner hole with lower end connected to the nozzle pipe and upper end connected to the containing pipe. The present invention has low cost, long service life, capacity of reach homogeneous combustor temperature, high heat energy utilizing rate and small heat shock to the furnace.

Description

technical field [0001] The invention relates to a carbon cathode production device, in particular to a gas burner of a cathode roasting furnace. Background technique [0002] At present, the production of carbon cathode requires that the cathode carbon block be roasted to a certain temperature, which is generally realized by a covered cathode roaster, and quite a few cathode roasters use gaseous fuel (natural gas, coal gas). In the prior art, the furnace space (fire well) under the cathode roasting furnace cover is generally used as a combustion chamber, and an ordinary steel pipe or a heat-resistant steel pipe is used as a gas inlet pipe on the cover. Due to the extremely high temperature in the furnace space under the furnace cover, and the asphalt fume released by the cathode carbon block corrodes the steel pipe. The consequences of this are: on the one hand, the steel pipes are severely deformed and corroded at high temperatures, and their lifespan is extremely short; ...

Claims

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Application Information

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IPC IPC(8): F23D14/58F23D14/48
Inventor 陈宁
Owner GUIYANG AL-MG DESIGN & RES INST
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