Coal analytical instrument

Abstract

The invention discloses a coal analytical instrument. A rotor shaft is horizontally arranged in a machine cavity formed by an upper arc-shaped enclosure and a lower rectangular enclosure; a vibration exciter is connected to a vertical sieve tray; a tangential direction of one end of a semi-circular sieve tray extends into a feeding hole; an automatic return switch is positioned on the right side surface of the lower enclosure; a single chip microcomputer is arranged inside the lower enclosure, and vertical to the left side of the lower end of the vertical sieve tray; and a corrugated base is arranged on the base of the lower enclosure. According to the coal analytic instrument disclosed by the invention, the vertical sieve tray and the semi-circular sieve tray continuously shaking up and down are arranged in a hammer type wet coal crusher, so that the high-moisture crushed products are not adhered on the sieve trays; and adhesive tape curtains are tightly overlapped, so that the crushed products that pass through the sieve are not adhered on the enclosure walls through the curtains. The coal analytical instrument is not limited in moisture of charging materials, so that a sample preparation process is simplified, the sample preparation time is shortened, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of coal analysis, in particular to a coal analysis instrument. Background technique [0002] Although there are many types of crushers used to prepare coal analysis samples, their common shortcoming is that they cannot break wet coal. For example, for general-purpose gravel crushers, double-roll crushers, and gyratory crushers, etc., once the moisture in the crushed feed exceeds 8%, the feed inlet will be blocked, making it impossible to continue to operate. The same is true for general-purpose hammer crushers. Although there is no limit to the moisture in the feed material without a sieve grate, the particle size of the crushed product cannot meet the requirements; Block the feed inlet and the sieve holes on the sieve grate. Therefore, all factories and mines must dry or dry the samples before preparing large samples or other analytical samples, which takes a long time, which not only affects production, ...

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