Hydraulic static blasting expansion tube

Abstract

The invention relates to a hydraulic static blasting expansion tube, which consists of an expansion hose body and a connector, wherein the expansion hose body is provided with a cavity with one end being closed, the cavity is provided with an outlet, and the outlet of the cavity is designed to be of a structure in a pipe connector form or in a pipe orifice form; and the pipe connector or the pipe orifice can be designed to be of structure in an external connection form or in an internal connection form. The expansion hose body is fixedly connected with the connector, and the external or the internal connection structure is of a threaded structure or other structures of the prior art. The hydraulic static blasting expansion tube is suitable for the cutting of the rock or concrete fragile material, is mainly used for mining stone, and is of a core component product of a hydraulic static blasting device for mining stone.

Description

technical field [0001] The invention belongs to a stone mining technology and equipment, in particular to a static blasting technology and equipment. Background technique [0002] Static crushing method (static blasting technology) is a new method of breaking (or cutting) rock and concrete developed in recent times, also known as static cracking and static crushing technology. Rather, it is static detonation chemistry. The basic principle and basis are: general rock or concrete are brittle materials, and the compressive strength of brittle materials is high, but the tensile strength is small, and its tensile strength is much smaller than the compressive strength. The tensile strength of rock is 4-10Mpa, and the tensile strength of concrete is about 1.5-3.0Mpa, which is about 1 / 10-1 / 20 of its compressive strength. Usually, the expansion pressure of the static breaker can reach 30-50Mpa. Therefore, a reasonable crushing design (determination of charge amount, hole diameter,...

AI Technical Summary

Problems solved by technology

[0004] It exists, after filling the expansion cracking agent, the rock generally takes 1-3 days to crack, and the efficiency is low; the effect is not good when the temperature is low, and when it is close to 0°C, the expansion cracking agent stops the chemical reaction and cannot be used; the expansion cracking agent As a disposable consumable, the amount of expansion agent is large, wasting resources, and the production cost is high; the generated waste residue pollutes the environment, etc.

[0005] Using keywords to search Chinese patents and authoritative websites and market surveys, one patent related to the static blasting chemical method was found, which was applied by Lin Zongshou of Wuhan University of Technology, and the patent No. Articles and products related to blasting methods

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