Coal Firmness Coefficient Determination Device

Coal Firmness Coefficient Determination Device

Product Introduction

Used to determine the physical and mechanical properties (strength f) of coal, which is one of the important indicators for assessing the risk of coal and gas outbursts in mining areas.

Applicable Conditions

1. Operating ambient temperature (°C): -5 to 35

2. Operating relative humidity (%): ≤90

3. Atmospheric pressure (kPa): 80 to 110

4. Determination of the firmness coefficient for lignite, bituminous coal, and anthracite

5. In environments without damaging metal insulation

Main Technical Specifications

1. Determination time: <1h

2. Crushing cylinder

Hammer operating height: 600mm

3. Electronic balance

Maximum capacity: 3000g

Sensitivity: 0.1g

Stabilization time: <3S

Power supply voltage: 220v (+10% to -15%)

Power: 5W

4. Hammer

Cylinder height: 90mm

Weight: 2.4Kg

5. Measuring cylinder

Piston scale operating length: 160mm

Piston scale graduation length: 160mm

Piston scale graduation accuracy: 1mm

6. Sample sieve

Round hole aperture: 20mm, 30mm, with base

Round hole, square hole aperture: 1mm (square hole), 3mm (round hole), with base

Square hole aperture: 0.5mm, with base

7. Funnel

Capable of loading coal samples with particle size less than 0.5mm into the measuring cylinder

8. Container

Capable of holding 50g of coal sample with particle size 20-30mm