Method for improving determination efficiency of moisture content of coal

Abstract

The invention discloses a method based on improving the measurement efficiency of moisture content in coal. A drying box, a drier, a glass weighing bottle and an analytical balance are selected; 1 ± 0.1g air-dried coal sample, spread it in a weighing bottle, open the weighing bottle cap, put it into a drying oven that has been heated to 105-110°C in advance, and keep the air blowing , dry the bituminous coal for 1 hour, and dry the anthracite for 1 to 1.5 hours. Put the weighing bottle containing the coal sample into the desiccator to cool to room temperature, and then weigh it; take the weighing bottle out of the drying box, and immediately cover it. After cooling to room temperature in a desiccator, weigh and carry out inspection drying, each time for 30 minutes, until the mass reduction of two consecutive dried coal samples does not exceed 0.001g or the mass increases; calculate the results. The method has simple and convenient steps, high efficiency and high detection accuracy, and can ensure that the coal achieves the expected target during subsequent use.

Description

technical field [0001] The invention relates to a method, in particular to a method based on improving the efficiency of moisture content determination in coal. Background technique [0002] Coal is a solid combustible mineral that was gradually formed by ancient plants buried underground through complex biochemical and physicochemical changes. It is a kind of solid combustible organic rock, which is mainly formed by biochemical action of plant remains, and then transformed by geological action after burial, commonly known as coal. Coal is known as black gold and the food of industry. It has been one of the main energy sources used by the human world since the eighteenth century. Coal is a layer of extremely thick black humus accumulated on the ground from the branches, leaves and rhizomes of plants for millions of years. Due to the changes in the earth's crust, it is continuously buried in the ground, isolated from the air for a long time, and under high temperature and pr...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the low efficiency and large error of the above-mentioned existing detection method, which leads to the problem that the coal cannot meet the expected requirements in subsequent use, and designs a method based on improving the efficiency of moisture content measurement in coal. The steps of the method It is simple, efficient, and has high detection accuracy, which can ensure that the coal will reach the expected goal in the subsequent use, and solve the problem that the existing detection method has low efficiency and large error, which leads to the failure of the coal to meet the expected requirements in the subsequent use.