Spiral inner wall crucible furnace

Abstract

The invention discloses a spiral inner wall crucible furnace. The spiral inner wall crucible furnace comprises a furnace body, a hearth is arranged in the furnace body, a crucible is placed in the hearth, the top of the crucible is compressed and fixed through a gland, a flame opening is formed in the position, close to the bottom, of the outer side of the furnace body, a burner is mounted on theflame opening, a spiral guide groove from bottom to top is formed in the hearth along the wall surface of the hearth, a vertical exhaust channel is formed in the position, above the spiral guide groove, of the wall surface of the hearth, the top end of the exhaust channel communicates with the hearth, and the tail end of the exhaust channel communicates with a connecting hole; and a leakage detection alarming opening communicating with the hearth is formed in the outer side of the furnace body. According to the spiral inner wall crucible furnace, the crucible heating efficiency is improved, the dissolving speed is increased, the service life of a crucible is longer, the up-down temperature in the crucible is uniform, the defective rate of a product is increased, waste heat can be recycledfor exhausting, the energy circulating efficiency is improved, the energy-saving effect is achieved, meanwhile, through design of the leakage detection alarming opening, the safety coefficient of thecrucible furnace is increased, and the service life of the crucible furnace is prolonged.

Description

technical field [0001] The invention relates to the field of crucible furnaces, in particular to a crucible furnace with a spiral inner wall. Background technique [0002] The crucible furnace is a furnace with a crucible in the hearth and a fixed or tiltable furnace body. It is mainly used for sintering, melting and analysis of metal, non-metal and compound materials. [0003] At present, the inner wall of the crucible furnace on the market is vertical to the hearth. Its working principle is that the burner located under the side of the furnace emits flames to heat the crucible in the furnace from below, and the exhaust gas generated after the fuel burns It is discharged from the chimney installed on the furnace body. Since the flame of the burner rises directly along the inner wall to heat the crucible, the part of the crucible close to the lower part of the burner will be heated quickly, while the upper part farther away from the burner will be heated relatively slowly, ...

AI Technical Summary

Problems solved by technology

Since the flame of the burner rises directly along the inner wall to heat the crucible, the part of the crucible close to the lower part of the burner will be heated quickly, while the upper part farther away from the burner will be heated relatively slowly, which will affect the melting and temperature of the material in the crucible ;The phenomenon of hot bottom and cold top is particularly prominent in this type of crucible furnace, and if things go on like this, the crucible in the furnace has different surface loads, so it has a great impact on the service life of the crucible, resulting in increased use costs

[0004] In addition, during the use of the existing crucible furnace, hot melt liquid will inevitably leak into the furnace. If the crucible furnace is not found and shut down in time, it will easily cause damage to the crucible furnace and threaten the safety of the staff.

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