Comparison of Local Load Influence on Crack Evolution of Coal and Briquette Coal Samples

Figure 2

Briquette coal making device. (a) Pressing process and (b) demoulding process. 1: loading parts; 2: loading column; 3: wiper block; 4: moulds; 5: demoulding column; 6: fixed nut; 7: pressure bearing roof; 8: support rods; 9: pedestal.

(a)

(b)