AUTOMATIC ANALYSIS OF SULFUR CONTENT OF COAL OR THE LIKE BY USING ROBOT HAND

摘要

PURPOSE:To automate the entire stage so as to lessen manpower and to improve the accuracy of analysis by analyzing the combustion gas generated when a ceramic boat contg. a sample is inserted through a combustion pipe by a robot hand into an electric furnace by a prescribed method thereby determining the total sulfur content. CONSTITUTION:A sample is sampled, weighed and put into the ceramic boat by the robot hand. Such boat is inserted into the tubular electric furnace 5. A valve 7 is opened, after the prescribed heating treatment, to feed oxygen through an oxygen feed port 8 into the furnace 5 to burn the sample of cool or the like in the boat and to fix the sulfur in the combustion gas as a sulfuric acid by the aq. hydrogen peroxide soln. in an absorption tank 9. An NaOH standard soln. is fed from an NaOH standard soln. tank 13 to the tank 9 via an electrically driven buret 11 and the sulfuric acid is quantitatively determined by titration. The quantity of the NaOH standard soln. is detected by a metering pump 12 by which the total sulfur can be quantitatively determined. These analytical operations are controlled by an analysis control part 15 and an automatic titrator 14.