Melting furnace

Abstract

The invention discloses a melting drop furnace, which comprises a heating furnace, a heating tube, a crucible, a pressing device and a driving device for driving the pressing device into and out of the heating tube, the heating tube vertically passes through the hearth of the heating furnace, and the heating tube The upper end of the furnace has an inlet and outlet for the crucible and the pressing device to enter and exit. The lower end of the heating tube is connected to a sealed air intake box. The hearth of the heating furnace is set in a form that can be opened and closed. The dripping furnace has the advantages of easy to ensure the verticality and sealing of the heating tube, convenient installation, replacement and calibration of the heating tube, and convenient inspection and maintenance of the heating tube.

Description

technical field [0001] The invention relates to the technical field of heat treatment kiln equipment, in particular to a drip melting furnace. Background technique [0002] The existing melting and dripping furnace is to make the heating tube run through the furnace of the heating furnace and be fixedly connected with the heating furnace. When the heating furnace is repaired, the heating tube is likely to move, which affects the verticality and sealing of the heating tube. At the same time, the heating tube is installed and replaced. , Inspection and maintenance are also very inconvenient, and verticality and sealing are also difficult to guarantee. [0003] In the existing droplet melting furnace, the graphite crucible is installed in the heating tube using the following installation method: a graphite support tube with a tapered hole at the upper end is arranged in the heating tube, and the bottom of the graphite crucible is designed as a conical structure. Insert it into...

AI Technical Summary

Problems solved by technology

[0002] The existing melting and dripping furnace is to make the heating tube run through the furnace of the heating furnace and be fixedly connected with the heating furnace. When the heating furnace is repaired, the heating tube is likely to move, which affects the verticality and sealing of the heating tube. At the same time, the heating tube is installed and replaced. , inspection and maintenance are also very inconvenient, and it is difficult to guarantee verticality and sealing

[0003] In the existing droplet melting furnace, the graphite crucible is installed in the heating tube using the following installation method: a graphite support tube with a tapered hole at the upper end is arranged in the heating tube, and the bottom of the graphite crucible is designed as a conical structure. Insert it into the taper hole of the graphite support tube, so that the graphite crucible is positioned and supported on the graphite support tube, and the heating tube lumen is divided into the upper section and the lower section. The sealing of the connection between the graphite crucible and the graphite support tube of this installation structure is poor, and graphite The installation stability of the crucible is poor, and it is difficult to ensure the verticality of the heating tube. At the same time, the contact surface of the graphite crucible and the graphite support tube is easy to wear, resulting in shortened service life

[0004] In addition, the existing melting drop furnace still has the disadvantages of inconvenient disassembly and assembly of the crucible, difficulty in aligning the material pressing device with the heating tube to enter and exit the heating tube, poor sintering efficiency and sintering effect of tail gas, etc.

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