Carbon dioxide blasting for rock cracking is an efficient equipment to replace explosives for rock cracking and quarrying.

The filling head of the carbon dioxide blasting equipment is equipped with a filling channel leading to the filling chamber of the main pipe and a top pin for opening and closing the filling channel. The energy release head is provided with an energy release channel. One end of the energy release channel leads to the filling chamber of the main pipe, and the other end leads outside the carbon dioxide extractor. A constant pressure energy release plate is sealed between the energy release channel of the energy release head and the filling chamber of the main pipe. The filling chamber of the main pipe is equipped with a heating device. The constant pressure energy release plate of the carbon dioxide burst equipment bursts when the heating device heats and vaporizes the liquid carbon dioxide filled in the filling chamber of the main pipe and expands it to a certain pressure. The carbon dioxide blasting equipment of the present utility model can replace the commonly used pipe mines and explosives in mine mining, avoid gas explosions caused by open flame explosions, achieve safe mine production, and can also pre-crack the coal body during the gas drainage process, effectively increase the permeability of the coal seam, and improve the efficiency of coal seam gas drainage.

The calculation formula for carbon dioxide detonation fracture rocks: Based on this, the volume, height and throwing rate of the accumulation can be estimated. The third section of the drug distribution design, which involves the design of the drug package and the selection of the number of drugs based on the specific conditions of Area a and the requirements of the blasting, is the key to the ketone chamber blasting design. ... (1) Discussion on j1 'Shi Fang's Book! The design specification is the official document of the Jise Level 7 machine classification approval. Its main locations include WNWIERT-lu, ITIA,XkXMtljl, etc. The volume of work, investment amount, technical and schedule requirements, as well as the main technical and economic indicators, etc. {(2) Topographic and geological data of carbon dioxide burst fractured rocks! Generally, topographic maps of the explosion area at a scale of 1:500, geological topographic maps at a scale of 1:100 OW or 1:2000, ground buildings near the explosion area and... are required. Location map of underground buildings, engineering geology and hydrogeology, meteorology and seismology of the explosion area} relevant data and maps IT.} (3) Experimental and testing data {such as explosive performance, initiation materials and initiation network experiments, testing data and small-scale blasting; R: Draft materials, etc. ... Ii. Spreading the medicine.

Basic requirements for carbon dioxide blasting fractured rocks. (1) It should be able to meet the requirements of the engineering blasting crushing range, without over-digging or under-digging. (2) It should be able to meet the requirements of the project for the explosion of the square disk and the throwing volume; (3) It should be able to meet the requirements of the project for the throwing direction, throwing distance and accumulation condition; (4) Slopes, buildings, structures and underground facilities, etc. should be well protected and not be damaged. (5) It should be able to ensure a reasonable block size distribution and blasting quality batch as required by the project, and save explosives and other blasting materials: (6) Ensure the safety of phosphorus blasting. Iii. Planning of Explosive Package Layout Before specifically determining the position and parameters of each explosive package, the carbon dioxide blasting blasting rock should have an overall planning of the blasting area. The main contents and issues to be considered are: 1. The scale of the ladle and the scale of its distribution should be determined based on the topographic and geological conditions as well as the requirements for blasting, and should also take into account safety and the overall technical and economic effects. At present, the scale of the medicine package adopted in our country is suitable for the maximum resistance line of 5 to 50 meters. When the terrain conditions are suitable, the blasting range is not large, and the required blasting and throwing volume is not large, single-row blasting ladles should be adopted as much as possible. When the single-row blasting ladles cannot meet the requirements of blasting volume and blasting range due to terrain restrictions, double-row or multi-row blasting ladles should be considered.