(1) Electric detonation method The electric detonation method is to use the electric energy to explode the detonator, and then to detonate the explosive method. The equipment it needs is: electric detonators, wires and detonating power supplies. The connection form of the electric blast network should be selected according to the blasting method, the blasting scale, the importance of the project, the selected detonating power source and its detonating capability, and the basic connection modes are: series, parallel, series-parallel, and parallel connection. The electric detonation method has the advantages of being safe, reliable, accurate and efficient, and still occupies a large proportion at home and abroad. In large and medium-sized blasting, electricity is still mainly used to detonate. Especially in the environment with gas and dust explosions, electric detonation is the main method of detonation. However, the electric power explosion is prone to early explosion due to interference of various electrical signals. Therefore, in an environment with stray electricity, static electricity, lightning, radio frequency power, high voltage induction electricity, ordinary electric detonators cannot be used. (2) fuse line detonation method The fuse detonation method is to use the fuse to transmit the flame to ignite the fire detonator and then to explode the explosive. The materials required for this detonation method are: fuse, fire detonator and ignition material. The fuse detonation method is simple, flexible, easy to use, and low in cost, and is widely used in small blasting and tunneling. Due to the short-burning and slow-burning of the fuse, the accident has the largest proportion in the blasting. It is impossible to detonate at the same time; the blasting time cannot be accurately controlled, the blasting scale is small, and the toxic gas in the blasting area increases; the detonation in the showering surface is unreliable, and it is impossible to check the network with the instrument. (3) Detonating cord detonation method The method of directly starting the explosive charge with the detonating cord is called the detonating cord detonation method. First use a detonator to detonate the detonating cord. When the detonation wave of the detonating cord is transmitted to the explosive pack, the explosive is detonated. In the place where the delay segment detonation is required, the purpose of the detonating cord millisecond blasting can be achieved by connecting the detonating cord into the detonating tube. The explosive materials required for such a blasting method are: detonators, detonating cords, and squibs. Detonating cords are commonly used in detonating networks: series, cluster parallel, one-way segmented parallel and bidirectional segmented parallel. (4) Detonating tube detonation method The detonating tube detonation method is a method in which a detonating tube is used to transmit a shock wave to detonate a detonator and thereby act as an explosive. The detonating tube detonation method fundamentally reduces the blasting accident caused by the interference of various external calls, the detonation network connection is simple, no complicated resistance balance and network calculation are needed; but the quality of the detonating network cannot be used an examination. The materials required for the detonating tube detonation method are: firing elements (fire gun, firing pen, high voltage electric spark, electric ignition head, fire detonator, electric detonator, detonating cord, etc.), blasting element (detonating tube), connection Devices, detonators, etc. The detonating tube detonating network has clusters (the fuse hole detonating tube is integrated into a network connected to the connecting device), and the clusters are connected in parallel (two or more groups of clusters are connected and then connected in parallel to one connecting device) The network is connected, the clusters are connected in series (the clusters are connected in series), and so on. High Quality Sucker Rod Hooks,Type Rh Sucker Rod Hooks,Sucker Rod Hooks,Rh Series Sucker Rod Hooks JIANGSU PETROLEUM MACHINERY CO.,LTD , https://www.jspmgroup.com
Common detonation method for engineering blasting
In engineering blasting, the commonly used detonation methods are: electric detonation method, fuse detonation method, detonating cord detonation method, detonating tube detonation method.