8 results about "Burst charge" patented technology

The utility model relates to the technical field of engineering blasting, and specifically discloses an engineering blasting water hole blasting charge structure, which comprises a baffle, the baffle is a cylindrical structure with open ends, a supporting plate is fixedly connected to the lower part of the inside of the baffle, a buffer plate is arranged directly above the supporting plate, a plurality of springs that are uniformly distributed in a circular shape are fixedly connected between the supporting plate and the buffer plate, a base is arranged on one side of the baffle, the gas compressibility and the elastic support mechanism are combined, the technical bottleneck of pressure balance and the stability of the propellant column in deep water blasting is broken through, the modular sealing connection design greatly reduces the construction difficulty of complex working conditions, the baffle is infinitely expanded through a standardized threaded interface, the hole depth limit is broken through, the positioning accuracy of the device in the inclined blast hole is significantly improved through self-adaptive counterweight, and the safety and the economy are both improved as a whole.

This invention discloses a method and system for designing tunnel smooth blasting charge schemes, relating to the field of tunnel blasting engineering technology. The method includes: collecting and preprocessing basic parameter data required for tunnel smooth blasting design; calculating initial design parameter values ​​for the smooth blasting charge based on smooth blasting design theory and a pre-set parameter calculation model, generating an initial design scheme; inputting the initial design parameter values, cross-sectional geometric parameter data, surrounding rock condition parameter data, explosive parameter data, and historical blasting effect feedback index values ​​into a pre-trained neural network optimization model, outputting optimized smooth blasting charge design parameter values; automatically updating the peripheral hole layout and charge structure in the design scheme based on the optimized design parameter values, generating and outputting the final tunnel smooth blasting charge design scheme. This invention enables intelligent and adaptive design of tunnel smooth blasting charge parameters, improving engineering applicability and molding quality.

This invention discloses a large-hole blasting charging device, belonging to the technical field of charging devices. It includes a nylon rope, which hooks a bomb via a hooking mechanism. The hooking mechanism includes a first arc-shaped block and a second arc-shaped block; a connecting mechanism; and a replacement mechanism. By setting up the hooking mechanism, the second arc-shaped block hooks the explosive. During charging, after the explosive cartridge is placed at the bottom of the hole, the nylon rope is quickly pulled up. Due to inertia, the force on the spring is much greater than the weight of the explosive, causing the spring to deform. Rotation occurs between the first and second arc-shaped blocks, and the second arc-shaped block separates from the explosive, thus unhooking the explosive. The spring force is selected to be greater than the weight of a single emulsion explosive. During the charging process, the explosive is prevented from falling off, avoiding affecting the blasting effect. This method avoids the problem of the rope becoming entangled after detaching from the explosive, improving operational safety and construction efficiency. This method is applicable to all large-hole blasting charging operations, both on the surface and underground.

The utility model relates to the technical field of blasting charging device, a kind of ore body exploitation blasting charging device, including vertical cylinder, the lower end of vertical cylinder is fixedly connected with reaming ring, the lower surface of reaming ring is fixedly connected with the placement cylinder, the inside of placement cylinder is equipped with cavity, the outer surface of placement cylinder is equipped with the opening of extension into cavity inside, the bottom wall of cavity is fixedly connected with limit protrusion, the inside of cavity is rotatably connected with explosive cartridge, the outer surface of explosive cartridge is equipped with placement slot, the inside of placement slot is provided with explosive, the inside of placement slot is slidably connected with push plate, push plate is in contact with explosive, the side surface of push plate away from explosive is fixedly connected with guide rod, explosive cartridge can be synchronously driven to descend when drilling, to avoid soil backfill when drill bit is retracted, to make explosive actual depth and predetermined depth same, guarantee the stability of blasting effect.

The application discloses a kind of anti-hole jamming's no-pillar sublevel caving blasting charge method.It is along the direction of roadway with three rows of blast holes as a blasting unit to cycle advancement;Second, third row in unit is staggered sparse arrangement in zigzag, and row distance is less than standard row distance S;When charging, first, second row full hole is loaded with high-energy explosive, and third row full hole is loaded with low-energy explosive;When detonating, first row is first exploded to loosen deep rock mass, and second, third row is simultaneously detonated after micro-delay.This application greatly weakens the damage of back flushing by functional differentiation charging, variable row spacing and geometric shielding and detonation mechanism, solves the problem of easy jamming of next cycle reserved blast hole;While effectively protecting the blast hole, it also takes into account the high rock breaking efficiency, improves the broken lumpiness and reduces the drilling amount, realizes the unity of hole protection, efficiency improvement and cost reduction.

The present application relates to the technical fields of deep hole pre-splitting blasting, and discloses a device for lifting a charging cylinder for underground deep hole pre-splitting blasting and a method for using the device. The device comprises a base, two tracks, a tray, a pulley steel wire traction mechanism and a tray recovery mechanism. The two tracks are installed side by side and at intervals on the base, and each of the two tracks is attached to the wall of a blast hole. The top of each track is detachably connected to the opening of the blast hole. The tray is slidably connected between the two tracks, and a cannon barrel and a cartridge are detachably connected to the tray. The pulley steel wire traction mechanism is installed on the base and used to drive the tray to move along the tracks. The tray recovery mechanism is installed on the base and detachably connected to the output end of the tray. The device can automatically and accurately control the charging cylinder to reach a specified depth in the blast hole, and can recover the tray and the tracks. The device improves the positioning accuracy, blasting quality, construction efficiency and safety, and reduces the construction cost.

The utility model discloses a smooth blasting charge structure, including blasting rock bed and according to the charge hole parallel to the exploration surface of excavation, still include the medicine mouth, the fixed plate of fixed installation in the medicine mouth both sides bottom end inner wall, the lead screw of bearing installation in a group fixed plate, the guide rod of fixed installation in another group fixed plate, install the charge mechanism of lead screw and guide rod on, the guide frame of fixed installation in the charge mechanism top and install the turnover bearing mechanism in fixed plate top. The utility model discloses the uncoupling charge, is favorable to improve the stability of side slope after blasting, through the position of the guiding cone surface to the cartridge is blocked, and there is air interval between the cartridge, and the same plane also uses the air to separate between multiple cartridges when spacing charge, forms multiple explosion energy concentration points, and is favorable to improve the stability of side slope after blasting.

This invention provides a shallow-hole blasting charging device for tunnels, relating to the field of shallow-hole blasting technology. It includes a second telescopic component, a delivery pipe, a pusher column, and a detonator support. The delivery pipe is installed at the telescopic end of the second telescopic component, and a sliding sleeve is mounted on the delivery pipe. The pusher column is slidably installed within the sliding sleeve, and a positioning groove is provided at the end of the pusher column furthest from the second telescopic component. The detonator support includes a central block, a ring plate, and elastic positioning strips. A detonator is installed at one end of the central block. The ring plate is mounted around the outside of the central block. Multiple elastic positioning strips are evenly distributed circumferentially on the ring plate and extend radially outwards. A positioning sleeve is provided on the bottom side of the ring plate, and a positioning block adapted to the positioning groove is provided on the inner side of the positioning sleeve. This achieves precise control of the detonator installation depth, and the radially arranged elastic positioning strips ensure the detonator is centered and fixed, preventing displacement or tilting, and guaranteeing good coupling between the detonator and the explosive. This invention also provides a construction trolley equipped with the shallow-hole blasting charging device for tunnels.