Flame-controllable burner of rotary kiln used for vanadium extraction from stone coal

Abstract

The invention relates to a flame-controllable burner of a rotary kiln used for vanadium extraction from stone coal. According to the technical scheme, long-flame air vent holes (8) are evenly formed in an annular boss constructed at the right end of a burner shell body (7), a central hole of the annular boss serves as a combustion chamber (9), switching valves (15) are arranged on a port of a short-flame air inlet connector (16) and a port of a long-flame air inlet connector (16), one end of a short-flame air pipeline (4) is embedded in a left port of the combustion chamber (9), and the other end of the short-flame air pipeline (4) is attached to the inner walls of refractory bricks (6); a gas pipeline (2) is mounted in the short-flame air pipeline (4), an air cyclone (13) is fixed between the inner wall of the short-flame air pipeline (4) and the outer wall of the gas pipeline (2), air outlets are evenly formed in an outlet disc (10) at the right end of the gas pipeline (2), and a central air pipeline (1) is fixed in the center of the outlet disc (10). The flame-controllable burner of the rotary kiln used for vanadium extraction from the stone coal has the advantages that the structure is simple, switching between short flames and long flames is achieved, flames are controllable, energy is saved, applicability is high, and work is stable.

Description

technical field [0001] The invention belongs to the technical field of a rotary kiln burner for vanadium extraction from stone coal. In particular, it relates to a flame controllable burner used in a rotary kiln for extracting vanadium from stone coal. Background technique [0002] The rotary kiln is a kind of equipment that consumes a lot of energy in the process of extracting vanadium. Only by designing a reasonable rotary kiln burner can the energy utilization rate of the rotary kiln be maximized. The burner not only provides fuel and oxidant for combustion, but also is the most important power device for flame forming. Therefore, an accurate device will provide a good working condition, which is very important for the calcination of clinker and the reduction of cost. [0003] There are single-channel, double-channel and multi-channel kiln burners, and the number of channels depends on the specific situation. There are two kinds of typical multi-channel burners current...

AI Technical Summary

Problems solved by technology

[0004] Although the above two burners have their well-known advantages, the structures of these two burners are relatively complicated, the manufacturing cost is high, the applicable occasions are relatively limited, and they can only produce short or long flames, and the length of the flames is uncontrollable , cannot meet different needs, so the above two burners have disadvantages such as complex structure, poor applicability and uncontrollable flame to varying degrees.

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