A transparent heating furnace

Abstract

The invention relates to a transparent heating furnace, in particular to a transparent heating furnace for a fluidized bed reactor. A furnace body is provided with an inner pipe and an outer pipe sequentially from inside to outside; a heating element is arranged on the outer wall of the inner pipe; a thermal insulation coating is arranged on the outer wall of the outer pipe; an observation window is formed in the longitudinal middle part of the thermal insulation coating; the inner pipe and the outer pipe are fixed through an inner ring groove and an outer ring groove in a furnace lid and a furnace bottom respectively; the outer pipe can rotate along the outer ring groove; the heating power of the transparent heating furnace for the fluidized bed is 500-5,000W, the heating temperature is not lower than 900DEG C, and the temperature rate is adjustable. The transparent heating furnace is simple in structure and small in size, components are easy to assemble and replace, the transparent heating furnace can serve as a heating device for scientific research in a laboratory and is particularly used in the field of fluidization research for observing particle flow and fluidization actions under the heating condition.

Description

technical field [0001] The invention relates to a heating furnace for scientific research and industrial use in the fields of chemistry, chemical industry, energy, metallurgy, pharmacy and nano material preparation, and more specifically relates to a transparent heating furnace used in the field of fluidization. Background technique [0002] Particle fluidization technology has the advantages of high mass transfer and heat transfer rate and uniform gas-solid reaction temperature, which makes the fluidized bed reactor based on particle fluidization widely used in coal chemical industry, petrochemical industry, iron and steel metallurgy, biomedicine, and nanomaterials. Traditional and emerging industries such as preparation have a wide range of applications. But in the gas-solid bubbling fluidized bed, the gas will form bubbles, and the particles will form agglomerates due to the inelastic collision between particles, the adhesion of particles during the reaction process, the ...

AI Technical Summary

Problems solved by technology

However, the furnace body of this patent is composed of three quartz tubes, inner, middle and outer, as well as a furnace cover and a furnace bottom, and has a complex structure.

On the one hand, the diameter of the furnace body is large, and the distance between the inner tube and the outer tube is far away, which is not conducive to close-range visual observation

On the other hand, the furnace bottom and the furnace cover are connected as a whole through the support rod, and the outer tube cannot be rotated, which is not conducive to adjusting the angle of the observation window and affects the practicability of the product

Moreover, thermocouples, heating furnace wires and power cord connectors are located inside the furnace cover, resulting in consumables such as thermocouples, heating furnace wires and internal components that cannot be replaced, thereby affecting the service life of the transparent heating furnace

In addition, when used with the magnetic field coil, due to the large diameter of the outer tube, in order to ensure the normal use of the magnetic field coil, a magnetic field coil with a larger inner diameter is required, resulting in a sudden increase in the weight and volume of the magnetic field coil and an increase in cost

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