Easy settling borehole explosion combined spacer

Abstract

The invention belongs to the technical field of borehole charging explosion, in particular to a borehole explosion combined spacer. The spacer consists of a disc bottom plate, a rubber seal ring connected with the disk bottom plate, a group of balance lifting ropes connected with upper surface of circumference of the disc bottom plate, a bearing guy rope connected with the group of balance lifting ropes, and an orifice rod connected with the bearing guy rope; the bearing guy rope is provided with ruler scale lines; a circumferential T-shaped slot is arranged on the disk bottom plate; and a group of water inlets are formed on the bottom of the circumferential T-shaped slot; the bottom of the rubber seal ring is a T-shaped base ring which is inserted in the circumferential T-shaped slot, and the middle part of the rubber seal ring is a flat plate ring connected with the upper end of the T-shaped base ring, and the upper part of the rubber seal ring is a conical sawtooth ring connected with the flat plate ring. The spacer has a simple structure, low manufacturing cost and good balance performance, is easy to operate, and ensures construction safety and reliability, therefore, the spacer can be widely used for blast holes with a large amount of water.

Description

technical field [0001] The invention belongs to the technical field of blasthole charge blasting in mining enterprises, and in particular relates to a combined spacer for easy-to-sink blasthole blasting. Background technique [0002] When mining ore or mining other solid objects, it is usually necessary to drill a deep hole with a drilling rig or other equipment on the object to be mined, and then fill the hole with explosives for blasting, so that the object to be mined will burst down, and then achieve the goal of mining. purpose, but directly filling the deep hole with explosives, sometimes the energy distribution generated by the blasting is not uniform, which not only causes a large amount of explosives consumed per unit, but also has a high rate of bulk, which affects the quality of the blasting. [0003] The blasting hole spacer is a device that separates different materials in the blasting hole. Its function is to make the energy distribution of explosives uniform. I...

AI Technical Summary

Problems solved by technology

Chinese patent ZL02276267.1 discloses a blast hole gas spacer, which is composed of a flexible air bag and an inflatable device in the air bag to form this type of spacer, and the air bag is inflated by releasing the compressed gas of the gas cylinder in the air bag, or The gas generated by the gas generator is used to inflate the air bag, so that the inflated air bag is in close contact with the wall of the blast hole to form a bearing capacity and realize the interval filling of explosives in the blast hole. There are safety hazards, and the structure is cumbersome, the operation is troublesome, the work efficiency is low, and the size of the isolation is not accurate, which affects the quality and effect of the blasting

[0004] Chinese patent ZL200620161101.8 discloses a gas spacer, which does not require high-pressure gas storage, but uses a compressor to inflate directly, but the premise is that it must be equipped with a special inflatable device during use, which is costly and time-consuming and complicated to operate. low efficiency

[0005] Chinese patent ZL01212086.3 is a spacer for deep hole blasting, which is composed of two partitions and a pillar between the two partitions. Although the structure is simple, the partition is a rigid solid and cannot be connected with the blasting hole when it enters the blasting hole. The shape is closely matched, the size is small, and the sealing performance of the space between the upper and lower partitions is poor, which affects the blasting effect

When the size is large, it is easy to get stuck with the hole wall, making it impossible to reach the set position, so that the blasting operation cannot be carried out smoothly

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