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由于KJ型、仿苏BM型旧式提升机制动系统单缸制动,制动力矩不足、不可靠,无二级制动等缺陷,制动系统失灵造成重大设备和人身事故时有发生,已引起上级有关部门的高度重视。为了弥补上述旧式提升机制动系统的不足,确保矿井的提升安全,现在已有部分矿务局,在副井旧式提升机上加装了小抱闸,作为大闸的后备闸。如徐州局在1986年大部分提升机加装了小抱闸,我局
As KJ-type, imitation SU BM-type old hoist brake system single-cylinder braking, braking torque is not enough, not reliable, no secondary braking and other defects, braking system failure caused major equipment and personal accidents have occurred, has caused the superior The relevant departments attach great importance. In order to make up for the deficiency of the braking system of the old hoist mentioned above and to ensure the safety of the mine, some mining bureaus have installed a small brake on the auxiliary hoist old hoist as the backup brake of the brake. Such as Xuzhou Bureau in 1986 most of the hoist installed a small brake, our bureau