A device for measuring the viscosity of high temperature coal ash

Abstract

The invention discloses a device for measuring the viscosity of high-temperature coal ash, which comprises a main body and a corundum tube embedded in the main body; a corundum crucible is suspended in the corundum tube through a corundum rod assembly; a plurality of silicon crucibles are arranged at intervals along the circumferential direction of the corundum tube in the heating space. Molybdenum rod; the measuring device has a measuring assembly extending along the axis of the corundum tube; the measuring assembly has a measuring rod extending to the inside of the corundum crucible, and a connecting mechanism extending to the outside of the main body and connected with the measuring rod; the measuring device of the present invention is formed in the main body Heating the space, and using the corundum rod assembly to suspend the corundum crucible in the corundum tube. At the same time, a temperature control couple and a temperature measuring couple are designed at the designated position, which can monitor the temperature value and the temperature of the coal ash at the designated position in the heating space in real time Use the drooping measuring rod to measure the viscosity value of coal ash and slag at different temperatures to ensure that the viscosity value of coal ash and slag within the operating temperature is within a reasonable range to ensure smooth flow of slag and stable slag discharge.

Description

technical field [0001] The invention relates to the technical field of coal gasification, in particular to a device for measuring the viscosity of high-temperature coal ash. Background technique [0002] Coal gasification is the core and leader of the development of the modern coal chemical industry. Liquid slag gasification technology has become the development direction of coal gasification technology because of its advantages such as wide applicability of coal types, high carbon conversion rate, and environmental friendliness. The liquid slagging gasification technology has high requirements on the high-temperature fluidity of coal ash. The viscosity-temperature characteristics of coal ash can reflect the fluidity of coal ash during melting, and directly determine the operating temperature of the gasifier, the choice of slagging method, Key issues such as the service life of refractory bricks and whether the device can run stably. [0003] In order to ensure the smooth f...

AI Technical Summary

Problems solved by technology

[0003] In order to ensure the smooth flow of slag and stable slag discharge, the vaporization technology using liquid slag discharge should generally have a viscosity value of coal ash and slag in the range of 2 to 25 pa.s within the operating temperature range. The slag protects the furnace wall; the excessive viscosity of the ash slag leads to poor fluidity of the ash slag, and the failure to discharge the slag smoothly affects the smooth progress of gasification

[0004] In the coal chemical industry in the prior art, there is no device that can monitor the viscosity and temperature of coal ash slag well. Therefore, those skilled in the art should develop a measuring device that can monitor the viscosity of high-temperature coal ash based on this technical defect

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