Full automatic intelligent measuring apparatus for gelatineous layer of mixed coal and measuring method thereof

Abstract

This invention relates to coal glue layer total automatic measurement device, which comprises computer, input and output data card, automatic heating temperature control part, smoke volume measurement, probe upper and down drive structures, probe rotation part and pressure automatic measurement, wherein, its uses volume measurement part to judge coal sample volume at peak or trough and to start probe drive structure for coal layer measurement through line step motor impulse sequence to determine coal layer upper and down layer position then uses OLS to match upper and down list layer change curve to get maximum thickness values.

Description

technical field [0001] The invention relates to a fully automatic measurement of a coal colloid layer, more precisely, the invention relates to a fully automatic and intelligent instrument for high-precision measurement of a coal colloid layer and a measurement method thereof. Background technique [0002] Gel layer index is an important indicator of coal quality. It reflects the amount of colloids produced by coal during heating, and approximately characterizes the process of industrial coking. The colloidal layer is measured by simulating the conditions of an industrial coke oven. The coal sample is heated on one side under constant pressure (the upper part is pressurized and fixed), so that the coal sample forms a series of isothermal surfaces that decrease from bottom to top. Plastids and coal samples are distributed sequentially. The determination of colloids can preliminarily predict the coking of coal in coke ovens and the quality of coke produced. [0003] The eva...

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Problems solved by technology

[0004] At present, the determination of the maximum thickness (Y) of the gelatinous layer is mainly based on human experience (or feeling), which is subjective.

In addition, the national utility model patent has been obtained: bituminous coal colloid layer automatic detection device (92230782.2) The bituminous coal colloid layer automatic detection device has no practical application, because the patent does not completely follow the national standard GB479-87 bituminous coal colloid layer index measurement The method requires automatic measurement, and the driving motor of this utility model patent is a DC motor, which needs to be equipped with a corresponding displacement measurement sensor, such as a potentiometer, etc., and the displacement measurement accuracy is far lower than that of a stepping motor. The pressure sensor is installed on the outer ring of the miniature bearing connected with the lead screw. In this way, when the lead screw rotates, in order to ensure that the pressure sensor does not rotate, the pressure sensor must be subjected to torque, which will affect the pressure measurement accuracy. Also, because the probe does not rotate and vibrate when withdrawing, the probe will bring out the colloidal body, which will seriously affect the measurement of the thickness of the colloidal layer of some colloidal bodies that are more sticky to coal samples.

In addition, the published invention patent: bituminous coal colloid layer automatic measurement device and its measurement method (200610038384.1), due to the need to insert the catheter into the pressure plate and the installation of the catheter fixing clip, this operation is very inconvenient, and some installation The operation takes nearly an hour, which seriously affects the progress of the measurement

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