First, Hastelloy grindability index detector Overview: Hastelloy grindability index detector, is the designated national production Hastelloy grindability index detector business, the instrument national standard GB2565 "Determination of grindability index of coal in accordance with the "(Hardgrove Act) requirements design and manufacture, is designed for determination of bituminous coal and anthracite grindability of an instrument, the measurement results expressed Harrington grindability index, the greater the index is, the more likely grind . The measurement results of the instrument can accurately reflect the degree of difficulty of ground coal, provide the basis for design and operation of the mill. Optimum Design in the continuous optimization of innovative, does not change the condition of the main structure. It adds body and the bottom of the grinding bowl structure top push to solve the heavy labor on the operation Satisfy bowl. Number of explicit numerical count turn, improves the reliability of the analyzer, making the new product replacement. Second, the analyzer works with structural features Harrington grindability index: Hastelloy grindability index detector works, according to the surface area of ??the new ground law (ie, the energy consumption of pulverized coal pulverized coal and produce proportional), to make good certain size range in Harrington instrument in coal grinding and screening, weighing, control, calibration chart, isolated grindability index. The instrument is mainly feeding bowl from the bowl institutions, gear box, gear, grinding rings and grinding bowls, motors and intelligent revolution speed controller. Motor and gear box mounted on the motor seat, fixed in the right-hand seat, spindle mounted in the center of the body, its top with the large gear, with weights and for sensing the number of revolutions of the magnet, the lower connection with an abrasive plate, bowl in the specialty steel mill base with a horizontal curved track. There are eight steel balls having a diameter of 25.4 mm, the motor drive transmission gear box and gear at 20 rev / min speed drive spindle running, and drives the grinding ring and eight balls to work the inner rail. Mechanism at the bottom of the bowl and grind bowl body, by a bridge-shaped base, screw lug plate, bowl care mandrel, handle and other mechanical components. When the lever handle, drive screw protruding disk rotation, thereby forming a vertical movement of the mandrel, in order to complete the operation on the bowl. The control system consists of intelligent rotational speed controller, a magnetic sensor. Press the start when the start button, the instrument start running, start counting device records the number of revolutions, the LCD screen can display working revolutions, and can automatically shut down after 60 rpm spindle rotation. Third, Hastelloy grindability index detector Technical data: Spindle speed: 20 ± 1r / min, limit the number of revolutions of work: 60 ± 0.25r, load force: 284 ± 2N, motor Model: JW5614, power: 90W, speed: 1400r / min