50 results about "Burst charge" patented technology

The invention relates to the technical field of blasting charging devices, in particular to a surface mine pre-splitting blasting parameter design method which comprises the following steps: acquiring P-wave velocity and differentially constructing a stiffness sequence, mapping a hole depth axis to identify a sudden change area, monitoring displacement and crack rate to extract triaxial deformation, identifying an unstable rock section and setting a charging section. According to the method, the P-wave speed is obtained, differential processing is carried out on the P-wave speed, the P-wave speed is converted into the rigidity gradient change rate, the rigidity gradient change rate is mapped to a hole depth axis recognition sudden change area, crack propagation and hole wall displacement are monitored, and an unstable rock stratum is positioned; and three-axis deformation is extracted to enhance prediction precision, a charging section is set, the dosage is calculated, the energy release efficiency is optimized, and blasting interference optimization is carried out by combining the time delay difference and the inter-hole included angle division distance.

The utility model provides a blasting charging device and relates to the technical field of blasting, the device comprises a plurality of charging assemblies which are sequentially connected end to end, each charging assembly comprises a supporting rod, a cover body and a box body which are sequentially arranged in the axis direction, the cover body covers an opening of the box body and is fixed with the box body through a fixing structure, and the supporting rod is arranged on the supporting rod. According to the explosive storage box, the explosive is placed in the containing space, the explosive storage box is suitable for various explosive forms, explosive leakage or danger caused by mixing of the explosive when the explosive is placed is avoided, the explosive storage box is convenient to use, and the explosive storage box has the advantages that the explosive storage box is simple in structure, convenient to use and high in practicability. And the explosive loading assemblies are connected through the supporting rods, so that the device has the supporting strength, the device is suitable for blasting holes of various angles, and the blasting explosive loading device is prevented from being damaged in the explosive loading process.

The present application relates to the technical fields of mining blasting, in particular to a kind of underground metal mine exploitation blasting charging device and method thereof.The underground metal mine exploitation blasting charging device includes two symmetrical arc-shaped plates, the top of the two arc-shaped plates is connected with a fixed seat on the side away from each other, a first telescopic rod is connected between the fixed seat and the arc-shaped plate, a first spring is sleeved outside the first telescopic rod, and a support is connected between the top of the two fixed seats.The present application can achieve the effect of pushing the arc-shaped plate to expand and extrude the inner wall of blast hole by setting upper support mechanism, lower support mechanism, arc-shaped plate and fixed seat.On the one hand, the arc-shaped plate compacts the soil and gravel of the inner wall of blast hole, expanding the charging space in blast hole;On the other hand, the arc-shaped plate isolates the rough inner wall of blast hole, so that the medicine bag contacts the smooth inner wall of arc-shaped plate and falls smoothly, which can effectively avoid the situation of blockage caused by the medicine bag skewing during charging process, making the blast hole charging more quickly and conveniently.

The invention discloses a blasting charging structure capable of reducing the rock pulverization rate, which comprises a strong blasting assembly and a weak blasting assembly, the strong blasting assembly and the weak blasting assembly are arranged at intervals, explosives filled in the strong blasting assembly are more than explosives filled in the weak blasting assembly, and the strong blasting assembly and the weak blasting assembly are respectively used as independent individuals. The weak explosion assemblies and the strong explosion assemblies are arranged at intervals, the blasting power of the weak explosion assemblies is compensated through the strong explosion assemblies, then the purpose of blasting is guaranteed, meanwhile, the weak explosion assemblies reduce the blasting power, the pulverization rate of rocks is reduced, follow-up recycling of the rocks is facilitated, meanwhile, use of explosives is reduced, and the cost is saved; in addition, the strong explosion assembly and the weak explosion assembly can serve as independent individuals to be prefabricated in a factory, and the transportation efficiency and the on-site construction efficiency are improved.

The application provides a chute blocking blasting charge structure and a blasting method, and relates to the technical field of blasting, and comprises an explosion device and an ignition device.The explosion device comprises an umbrella-shaped explosion assembly and a columnar explosion assembly, and the columnar explosion assembly is located between the umbrella-shaped explosion assembly and the ignition device.The umbrella-shaped explosion assembly comprises a plurality of limiting frameworks and first explosives fixed on the surfaces of the limiting frameworks, adjacent two limiting frameworks have a predetermined angle, and a plurality of the limiting frameworks form an umbrella-shaped structure at the lower end of a blocking body.The application greatly improves the effect of blasting construction, ensures the safety of blasting, improves the efficiency of underground blasting construction, is convenient for on-site construction, can effectively deal with long-distance blocking of a main chute shaft, and is well applied in mines.

The utility model relates to the technical field of mine blasting tools, in particular to a mine blasting charging device which comprises a supporting rod, the supporting rod is composed of a first telescopic rod and a second telescopic rod, the first telescopic rod and the second telescopic rod are connected in a sliding mode, and the first telescopic rod and the second telescopic rod are used in a telescopic mode through a locking assembly. The other end of the second telescopic rod is slidably connected with a supporting plate and fixedly connected with a mounting cylinder. Wherein a clamping assembly is arranged in the mounting cylinder, and the clamping assembly is used for filling blasting objects and can adjust and lock the position between the first telescopic rod and the second telescopic rod, so that on one hand, the length of the mounting cylinder can be increased to adapt to blasting holes with different depths; and on the other hand, the situation that an extension rod needs to be additionally carried to extend the mounting barrel in the explosive loading process is avoided, the portability of the explosive loading device is effectively improved, and under the situation that the length or height needs to be rapidly adjusted, the telescopic rod can rapidly respond, and the working efficiency is improved.

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.

The utility model discloses a blasting explosive loading truck capable of loading explosive at intervals, which comprises a material cabin, a partition plate fixedly connected in the material cabin, a supporting plate fixedly connected at the bottom of the material cabin, two storage boxes placed in the material cabin, one storage box is used for loading explosive, the other storage box is used for loading spacing materials, and the other storage box is used for loading the spacing materials. Discharge valves are arranged at the bottoms of the two storage boxes; the driving cabin is arranged at the position of the bottom of the material cabin, the driving cabin is fixedly connected with the material cabin, the inner side of the driving cabin is fixedly connected with a material guiding frame, the material guiding frame is arranged in a funnel shape, and the bottom of the material guiding frame extends to the outer side of the bottom of the driving cabin. According to the explosive loading truck capable of loading the explosive at intervals, through the matched design of the material bin, the driving bin and the internal structure of the material bin, the driving bin and the internal structure of the driving bin, alternate loading of the explosive and the spacer materials can be achieved, manual loading is replaced, the loading efficiency is effectively improved, and the labor cost is reduced.

The invention relates to the field of data analysis, in particular to a detonator group intelligent blasting control method based on panoramic scanning, and the method comprises the steps: carrying out the panoramic scanning of a target region to construct a three-dimensional simulation model; determining a region category according to the model credibility and the model fine granularity; the high-quality data area is divided into a first-class blasting area and a second-class blasting area according to the height equilibrium coefficient of the building to be blasted in the high-quality data area; determining a blasting search strategy according to the structure correlation degree and the distribution density for the first-class blasting area; judging a blasting search strategy according to the environmental constraint equilibrium value; and when the reference blasting sequence is executed, the blasting priority of the to-be-blasted building is determined according to the blasting gain value of the to-be-blasted building, the blasting charge amount is determined according to the building height corresponding to the to-be-blasted building with the first blasting priority, and the blasting sequence is determined according to the surrounding area collapse degree for the to-be-blasted building with the second blasting priority. The blasting effect is effectively improved.

The utility model relates to the technical field of on-site mixed loading blasting charge control systems, in particular to a portable charge controller for on-site mixed loading of explosives, which comprises a controller host and a fixed hand strap connected to the controller host, the fixed hand strap comprises a first strap body and a second strap body, one end of the first belt body and one end of the second belt body are fixedly connected with the controller host, and the other end of the first belt body and the other end of the second belt body are detachably connected through a connecting piece. And the controller host is automatically connected with a control system of the small mixed explosive charging equipment which is matched with the field for use through wireless signals and is used for controlling the explosive charging operation. The device has the advantages that the number of specially-assigned persons for operating an electric control system is reduced, meanwhile, charging control operation is accelerated, and the charging construction efficiency and safety of underground engineering site mixed charging explosives are improved.

The invention relates to the technical field of blasting charging structures, in particular to an axial spaced charging device and method for strip mine bench blasting, which comprises a bottom support, a plurality of elastic clamping plates are inserted into the top of the bottom support, a plurality of groups of clamping bulges are fixed on one sides of the elastic clamping plates, and blasting charges are put among the plurality of elastic clamping plates; the outer sides of the elastic clamping plates are sleeved with lantern rings, and the clamping protrusions are clamped between the elastic clamping plates and the explosive bag. The device has the beneficial effects that a surrounding and protecting structure for explosives is formed by the multiple elastic clamping plates, and the lantern rings and the clamping protrusions are matched, so that the explosive packages can be axially installed at different height positions of the elastic clamping plates at intervals; according to the interval charging mode, explosive energy can be reasonably distributed in the axial direction of the blast hole, the energy is prevented from being excessively concentrated or dispersed, and therefore the energy utilization rate of the explosive is increased, rock breaking is more uniform, the boulder rate is effectively reduced, and the blasting quality is improved.

The utility model discloses a charging device for mine blasting, and relates to the technical field of blasting charging devices. Trundles are arranged on the bottom face of the base, limiting seats are arranged at the two ends of the top face of the base respectively, a blasting charging box is installed between the limiting seats, a push rod is installed on one side of the blasting charging box, a charging groove is formed in the other side of the blasting charging box, and a charging assembly is installed in the charging groove. A plurality of buffering assemblies are installed between the bottom of the blasting charging box and the top of the base. A buffer assembly composed of a movable seat, a damping rod, a second spring, a limiting plate, a second damping rod, a first damping rod and a first spring is arranged between the bottom of the blasting charging box and the base, so that vibration energy in the transportation process can be effectively absorbed, impact on explosives is reduced, the damage risk of the explosives is reduced, and the integrity and safety of the explosives are guaranteed.

The utility model discloses a pre-splitting blasting hole charging structure, which relates to the technical field of pre-splitting hole blasting charging and comprises a stress rope and a plurality of emulsion explosives. Detonating cords are connected to the emulsion explosives; an adhesive tape adhered to the stress rope is adhered to the emulsion explosive; one end of the stress rope extends into the pre-splitting hole, and the other end of the stress rope extends out of the pre-splitting hole and is tied with the hanging ring; the stress rope is tied with the hanging ring, compared with connection with a large stone, the stress rope is not prone to falling off, the stability after charging can be improved, then bases with different diameters are selectively installed on the fixing cover, it can be guaranteed that the bases cannot enter the presplitting hole, and compared with the situation that the stone with the corresponding size is found on site, operation is more convenient.

The application discloses a blasting device with segmented charges, and relates to the technical field of gold mine blasting, which comprises a charging assembly used for loading gunpowder into a blast hole, the blast hole is arranged on a gold mine, and the charging assembly comprises a base arranged at the top of the blast hole, a rotating shaft fixedly connected to the top of the base, a servo motor fixedly connected to the end of the rotating shaft, and a fixed end and an output shaft of the servo motor, wherein the end of the output shaft of the servo motor faces away from the rotating shaft; the charging assembly is tightly abutted against the blast hole wall through physical contact and is chemically bonded after the curing of a foamed adhesive, and the combination of the two can resist the problems of insufficient gravity and friction in deep holes and inclined holes of the blast hole, so that the blasting charge cartridge can be fixed in a double-insurance mode of mechanical clamping and chemical bonding, the position of each explosive segment in the blast hole can be independently limited, the position shifting of the upper and lower charge segments caused by contact or external force can be avoided, and the explosive can be ensured to be always in the designed position in the whole blasting preparation process.

1. Name of the product in this design: Explosive charge tube (integrated external insertion type with shaped charge shield). 2. Purpose of this design: a charging tube for blasting applications. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The present application relates to the technical field of blasting, in particular to a kind of advanced working face roof cutting pressure relief and roadway protection method and blasting charge structure.The technical scheme includes support plate for supporting equipment and dispensing mechanism for quickly dispensing explosive;The dispensing mechanism includes storage box for storing explosive and material pouring block for making explosive automatically slide into blasting hole;One end of the support plate is provided with a protection mechanism for protecting the person dispensing explosive, which can reduce the harm of explosive to the person dispensing explosive.The present application is designed by dispensing mechanism, storage box and material pouring block, etc., and the explosive can be automatically dispensed by dispensing mechanism, which can reduce the time and frequency of manual operation, thereby improving production efficiency.And automatic explosive dispensing can avoid the influence of human factors on explosive throwing, improve the accuracy and accuracy of throwing, avoid accidents when handling explosive incorrectly.

The utility model relates to the technical field of tunnel smooth blasting, in particular to a tunnel smooth blasting charge accurate positioning device which comprises an installation pipe and a containing pipe, the containing pipe is arranged on the inner side of the installation pipe, the containing pipe and the installation pipe are both designed to be of a semi-arc structure, and the outer diameter of the containing pipe is smaller than the inner diameter of the installation pipe. The right side of the containing pipe and the right side of the mounting pipe are each of an opening-shaped structure design, a movement control mechanism is arranged on the outer side of the containing pipe and controls movement of the containing pipe on the inner side of the mounting pipe, a baffle is fixed to the left side of the containing pipe, and an identification rod is arranged on the left side of the baffle. According to the accurate positioning device for tunnel smooth blasting charging, gunpowder is contained through the containing pipe and fed into a hole in cooperation with the mounting pipe, the feeding depth of the gunpowder can be measured subsequently through the marking rod, and therefore the feeding position of the gunpowder is accurately controlled, and the charging accuracy is improved.

The utility model discloses a rock blasting charging structure which comprises a fixing rod inserted in a blast hole, a plurality of elastic anchoring pieces are arranged at the front end of the fixing rod, the elastic anchoring pieces incline outwards and extend upwards to abut against the hole wall of the blast hole, a plurality of blasting charges are fixedly arranged on the fixing rod in the extending direction of the blast hole, and the blasting charges are arranged on the fixing rod. The tail end of the fixing rod is provided with a plugging assembly for plugging the blast hole. The fixing rod is arranged in the blast hole, the blasting charge is fixed on the fixing rod, so that the blasting charge is fixedly installed in the blast hole, meanwhile, the front end of the fixing rod is connected with the blast hole in an anchoring mode through the elastic anchoring piece, the plugging assembly is arranged at the tail end of the fixing rod to plug the blast hole, and the purpose of preventing punching can be effectively achieved.

The utility model relates to the technical field of geotechnical engineering blasting, and discloses a rock blasting charging structure of a karst area, which comprises a rock body and a karst cave, a drill hole is arranged in the rock body, a PVC (polyvinyl chloride) pipe is inserted in the drill hole and extends into the karst cave, a first section of sand filling is arranged in the PVC pipe, and a second section of sand filling is arranged in the first section of sand filling. The first section of sandy soil filler is arranged in the rock mass, the second section of sandy soil filler is arranged in the PVC pipe, the second section of sandy soil filler is arranged on the side of the first section of sandy soil filler, the second section of sandy soil filler is arranged on the inner side of the karst cave, one end of the PVC pipe extends out of the outer side of the rock mass, the extending end of the PVC pipe is sleeved with a fixing assembly, and the fixing assembly comprises a sleeving ring, a screw hole and a positioning bolt. According to the utility model, the explosive loading amount can be reduced, blasting flying stones can be effectively controlled and the safety of blasting construction can be ensured by loading the explosive in sections, filling the explosive loading section at the karst cave with the sandy soil and not loading the explosive.

The utility model relates to the technical field of blasting charge, in particular to a uniform adjusting device for controlling the blasting charge density, which comprises a first charge cylinder, the inner side of the first charge cylinder is movably connected with a second charge cylinder, the inner side of the second charge cylinder is in threaded connection with a threaded rod, and the surface of the threaded rod is movably connected with a push plate. The surface of the push plate is fixedly connected with a limiting rod, and the limiting rod is movably connected with the second medicine charging cylinder. The pulling plate is pulled to enable the movable rod to move in the fixed plate, the elastic property of the spring is matched, so that the connecting plate and the rubber block can knock the first explosive charging barrel under the action of the movable rod and the spring, vibration generated by knocking enables explosive gaps to be reduced when explosives are charged, the explosives can be prevented from loosening, and the explosive charging efficiency is improved. And therefore, the explosive filling can be more uniform and compact, the explosive filling density can be adjusted, and the blasting quality and effect can be improved.

A system, method, or apparatus for generating a blast plan that can receive blast data comprising geological properties of a blast site, blasthole parameters, and available explosive product. A pattern footage can be determined based on a relationship between the face height, the specific energy of the available explosive product, and the geological properties of the bench. The burden and spacing can be determined from the pattern footage.

The utility model discloses a mine blasting charging device which comprises a charging bottom plate, a front clamping block, a rear clamping block, a push rod and a guide block, the rear clamping block is fixedly connected with one end of the push rod, the other end of the push rod penetrates through a guide hole in the guide block, and a clamping spring in a compressed state is sleeved on the push rod between the rear clamping block and the guide block. A shoulder protruding upwards is arranged at the front end of the charging bottom plate, the explosive bag is placed on the shoulder, the pull wire penetrates through the middle of the reset spring and penetrates through a wire hole in the abutting plate to enter a wiring groove in the bottom of the charging bottom plate, and the other end of the pull wire penetrates through the wiring groove and a wiring hole in the rear end of the charging bottom plate to be fixedly connected with the connecting block. According to the explosive charging device, an explosive package is fed to the bottom of a blast hole, then the pull wire is pulled out, the front clamping block is made to contract, the rear clamping block pushes out the explosive package, then the whole device is pulled out, the explosive is left at the bottom of the blast hole, and the explosive charging device is suitable for the blast holes in different directions and can charge the explosive packages of different sizes.

A concrete demolition charge is provided and comprises a shaped charge including a liner.

The utility model discloses a multi-point shaped charge structure of shaped charge blasting, including outer tube, inner tube and protective cover, outer tube both sides are provided with through-hole, the shaped charge tube is placed in the inner cavity of inner tube, the right side of shaped charge tube is fixedly equipped with the detonating cord, the lower end of protective cover is provided with the accommodation groove, the lower end of protective cover is provided with the through-hole, and the lower end of protective cover is provided with the through-hole. And the surface of the detonating cord is in contact with the upper end of the accommodating groove. Through the arrangement of the outer pipe and the inner pipe, the shaped charge pipe can be filled, meanwhile, through the arrangement of the through holes in the two sides of the outer pipe, multi-point shaped charge blasting can be carried out towards the two sides through the through holes in the blasting process, and through the arrangement of the protective cover and the movable cover, personnel can conveniently carry out multi-point shaped charge blasting on the two sides after the shaped charge pipe is filled. And the outer pipe, the inner pipe and the right side of the energy-gathered charging pipe are limited and protected, so that the energy-gathered charging pipe is prevented from falling off in the moving or transporting process, and the overall use safety is improved.

The application discloses a kind of medium ring width adjustable radial water coupling blasting charge method, it is related to the technical field of seismic exploration, comprising the following steps: S1, the bottom of cylindrical film is inwardly folded to form the first film bag with inner layer film and outer layer film;S2, the explosive required by blasting construction is placed in the inner layer film, a part of the required water medium is added in the interlayer formed between the outer side of the inner layer film and the inner side of the outer layer film;S3, take a shell plate, the both ends of shell plate are bent and wrapped in the outer side of outer layer film, the adjustment of the size of the overlapping area of the both ends of shell plate is realized to adjust the wrapped inner diameter size formed by shell plate, the inner side wall of shell plate is tightly attached to the outer side of outer layer film, and the wrapped shape of shell plate is fixed by a plurality of fasteners;S4, the remaining part of the required water medium is continuously added to the interlayer formed between the outer side of the inner layer film and the inner side of the outer layer film, and sealed.The realization medium ring width adjustable, reduce the film breakage condition occurs.

The utility model discloses an operation tool for blast hole blowing of a blasting working face of underground excavation engineering, which comprises an air compressor (8) mounted on the ground surface, a high-pressure seamless steel pipe (7) connected with the air compressor (8), and a galvanized hollow pipe (1) of which the air outlet end is inserted into a blast hole (9) of the working face when the galvanized hollow pipe (1) is used, and the middle part of the galvanized hollow pipe (1) is bent; the air inlet end of the galvanized blank pipe (1) is inserted into the connector (3) to be fixed, the other side of the connector (3) is connected with the rubber hose (4), and the rubber hose (4) is arranged on site along a working face. The air outlet end of the high-pressure seamless steel pipe (7) is connected with an automatic switch valve (6); the air outlet end of the automatic switch valve (6) is connected with the air inlet end of the rubber hose (4); and an automatic control pressure regulating valve (5) is arranged in the middle of the rubber hose (4). By means of the tool, front-line blasting operation personnel can handle stone blocks and water stains left in blast holes at any time before blasting charging and in the charging process, and the construction quality of the blast holes is ensured.

The invention discloses a tunnel energy-gathered smooth blasting charging structure and method. The charging structure comprises an energy-gathered charging pipe, a positioning hoop arranged outside the pipe in a sleeving mode and a positioning rail bar used for guiding installation. Triangular energy-gathering grooves which penetrate in the axial direction and are symmetrical on the two sides are formed in the energy-gathering charging pipe, and conical energy-gathering holes are formed in the two ends of the energy-gathering charging pipe. The positioning hoop is provided with elastic tooth petals which are expanded outwards, trapezoidal gaps are reserved between the tooth petals, and the section shape of the positioning rail bar is matched with the gaps. During construction, through clearance fit between the positioning rail bar and the positioning hoop, rotation of the energy-gathering charging pipe is limited, and it is ensured that the energy-gathering groove is accurately aligned with a tunnel design excavation contour line; the positioning hoop supports the shaped charge tube to be located in the center of the blast hole, an air gap is formed between the cartridge and the hole wall, the buffering effect is achieved, and damage of explosive shock waves to surrounding rock is reduced. The device integrates orientation, positioning, explosion propagation and filling, detonating cord-free sympathetic detonation is achieved, the filling procedure is simplified, and the half-hole rate and the construction efficiency of tunnel smooth blasting are remarkably improved.

The utility model discloses an ultra-deep hole reinforced charging device, which belongs to the technical field of deep hole blasting charging equipment and comprises a guide rail, a moving trolley, a pressure cylinder, a material conveying hard pipe, a material conveying hose and a pressure head. The moving trolley moves along the guide rail through the driving motor; the output end of the pressure cylinder is connected with the tail end of the conveying hard pipe; the hard conveying pipe is slidably limited through the guide seat and the guide shaft, and a baffle is arranged at the tail end; the material conveying hose is communicated with the material conveying hard pipe and an external explosive pump; the pressing head is of a disc structure with a threaded through hole and is in threaded connection with the end of the hard conveying pipe. The conveying hard pipe is precisely conveyed to the bottom of a deep hole through the moving trolley, high-pressure compaction from bottom to top is synchronously carried out through the pressing head in the explosive filling process, the problems that in the prior art, explosive compaction lags behind, and the hole bottom density is insufficient are solved, and the explosive compactness and the blasting performance are remarkably improved.

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.