Novel muffle furnace

Abstract

The invention provides a novel muffle furnace to overcome the problems of pollution to glassware and influence on the shape of the glassware due to heating manners of traditional muffle furnaces. The novel muffle furnace comprises a furnace chamber, a heating chamber, silicon-molybdenum rods and a heat-insulation layer. The novel muffle furnace is characterized in that the furnace chamber is made of a heatproof plate; the periphery of the heating chamber is made of a steel plate; six silicon-molybdenum rods are arranged in the heating chamber and divided into two groups; the two groups of silicon-molybdenum rods are in the shape of a regular triangle and coat the outer side of a glass tube at positions one third and two thirds of the axial height of the glass tube respectively; and the number of the silicon-molybdenum rods is plural, and each group of silicon-molybdenum rods coats the outer side of the glass tube in the form of a regular polygon. The novel muffle furnace provided by the invention has the advantages of high thermal efficiency, usage of clean and environment-friendly energy, uniform and controllable temperature in the furnace chamber, etc.

Description

technical field [0001] The invention relates to a novel muffle furnace, which is particularly suitable for forming, processing and manufacturing glass pipes such as energy-saving lamp tubes and solar hot water pipes, and belongs to the technical field of glass smelting and forming. Background technique [0002] In the process of processing various glass tube products by the maintenance method, the glass raw materials are made into glass tubes with various diameters. The most critical process is to blow the glass liquid formed after heating and pass through a set temperature of the muffle furnace to obtain glass tubes of the desired diameter. The traditional muffle furnace is made of refractory materials. Its radial shape is generally a regular hexagon. There are two upper and lower flame holes on the wall of each side. The natural gas or city gas fuel used is injected The fire hole sprays fire into the furnace cavity for heating. Such a muffle furnace has low thermal effic...

AI Technical Summary

Problems solved by technology

Such a muffle furnace has low thermal efficiency, is not environmentally friendly and exhaust gas is discharged, and the temperature in the furnace cavity is uneven and difficult to control, so the diameter and roundness of the glass tube cannot be guaranteed.

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