A translational mode bituminous coal combustion furnace with temperature gradient function

Abstract

The invention discloses a translation mode bituminous coal combustion furnace with a temperature gradient function, and belongs to the field of analytical equipment for the sulphur content of a bituminous coal combustible material. The combustion furnace comprises a combustion furnace body, three resistance wires, a third heat shield plate, a second heat shield plate, a movable ceramic plate, a first heat shield plate and a roller carrier, wherein the combustion furnace body adopts a thin-walled cylinder which is longer in the axial direction and made of ceramic fiber; the three resistance wires are arranged in the axis direction of the combustion furnace body; thermocouples are respectively mounted at parts, corresponding to the three resistance wires, in the combustion furnace body in the axial direction; crucible holes uniformly distributed and linearly arrayed are formed in the movable ceramic plate, and allow crucibles loaded with coal samples to be placed in; and two ends of the movable ceramic plate are arranged on rollers. The translation mode bituminous coal combustion furnace is compact in structure, has a function that the temperatures of multiple temperature zones are constant, is provided with the resistance wires which are longer in service life, and can realize continuous sample placing.

Description

technical field [0001] The invention mainly relates to the field of analysis equipment for sulfur content in bituminous coal combustible substances, in particular to a translation mode bituminous coal combustion furnace with temperature gradient function. Background technique [0002] It is of great significance to accurately and quickly measure the content of sulfur in combustible substances. The classic Aisi sulfur measurement method needs to move the crucible containing the Aisi experimental sample into the muffle furnace, gradually heat it from room temperature to 800-850°C within 1-2h, and keep it at this temperature for 1-2h. The bituminous coal combustion furnaces in the prior art all adopt a single temperature zone structure mode, that is, there is only one temperature in the combustion furnace at the same time. Although the combustion furnace of the prior art realizes the function of bituminous coal combustion, it can only measure coal samples in batches because it...

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Problems solved by technology

The bituminous coal combustion furnaces in the prior art all adopt a single temperature zone structure mode, that is, at the same time, there is only one temperature in the combustion furnace

Although the combustion furnace of the prior art realizes the combustion function of bituminous coal, it can only measure coal samples in batches because it needs to continuously change the heating and cooling, that is, the first batch of samples cannot be put into the muffle furnace before the end of the experiment. Two batches of Ehrlich test samples, and the life of the resistance wire is shorter

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