81 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 invention relates to an efficient shaped charge blasting charging device for tunnel smooth blasting, and belongs to the field of tunnel shaped charge smooth blasting. The device comprises an energy gathering pipe I and an energy gathering pipe II, the two ends of the energy gathering pipe I are an end A and an end B, the two ends of the energy gathering pipe II are an end A'and an end B ', the end A of the energy gathering pipe I is close to a blast hole opening, the end B of the energy gathering pipe I is fixedly connected with the end A' of the energy gathering pipe II through a positioning plate, and the end B 'of the energy gathering pipe II is fixedly connected with the end A' of the adjacent energy gathering pipe II through a positioning plate. A filling fixing bag, a water bag, conventional explosives and energy-gathered explosives are sequentially arranged in the energy-gathered pipe I from the end A to the end B, and conventional explosives and energy-gathered explosives are sequentially arranged in the energy-gathered pipe II from the end A'to the end B '; an industrial electronic detonator is inserted into the energy-gathered explosive of the energy-gathered tube II located at the bottom of the blast hole, and a leg wire of the industrial electronic detonator sequentially penetrates through the centers of the energy-gathered tube II and the energy-gathered tube I from the bottom of the blast hole to an orifice. The charging stability and the forming effect of the tunnel smooth blasting peripheral holes can be improved, the construction cost is reduced, and the construction efficiency is improved.

The blast hole filling device comprises a cyclone separator body, a dust-containing air inlet and a clean air outlet of the cyclone separator body communicate with a first pipeline and a second pipeline correspondingly, and the end, away from the cyclone separator body, of the second pipeline communicates with an induced draft fan; the dust collecting box is communicated with the dust hopper of the cyclone separator body, the bottom of the dust collecting box is vertically communicated with a dust discharging pipe, and a dust discharging valve is arranged on the dust discharging pipe; the two ends of the dust blowing pipe are communicated with an air blower and a third pipeline respectively, and a pipe body of the dust blowing pipe is vertically communicated with the bottom end of the dust discharging pipe. According to the blast hole filling device, suction of rock powder is achieved through negative pressure generated by the induced draft fan, then the rock powder sucked into the dust collection box is discharged into a blast hole filled with explosives through positive pressure generated by the air blower, automatic suction and discharging of the rock powder are achieved, and therefore the blast hole filling efficiency is improved.

The invention provides a delayed detonation functional structure of a shaped charge and blasting series warhead. The delayed detonation functional structure comprises a cylindrical detonation propagation channel arranged between shaped charge and blasting charge; the explosion propagation channel is arranged in the shell, and the explosion suppression layer and the multi-stage explosion propagation sequence are arranged in the explosion propagation channel; the booster sequence sequentially comprises a low-speed delay explosive, a first-stage explosive assistant, an insensitive booster explosive, a second-stage explosive assistant and an initiating explosive. And the explosion-proof layer is used for ensuring that the low-speed delay powder is kept in a stable working state. In the working process, the low-speed delay explosive achieves the delay effect, when energy is spread to the tail, the insensitive booster explosive is detonated through the assistant explosive, detonation is generated, then the initiating explosive is detonated after the energy of the assistant explosive is amplified, finally the blasting charge is detonated through the initiating explosive, and after it is ensured that energy-gathered jet flow is completely formed, the blasting charge is triggered to be detonated. Therefore, the expected delayed blasting effect is achieved. The delay stability is guaranteed through the explosion-proof layer, and combustion delay, detonation conversion and pressure compensation are innovatively integrated into a single system.

The utility model relates to an underground metal mine mining blasting charging device which comprises a first vertical plate and a second vertical plate, a first supporting plate and a second supporting plate are hinged to the bottom of the first vertical plate and the bottom of the second vertical plate respectively, and a locking assembly is installed between the first supporting plate and the second supporting plate. The second supporting plate can be connected with the first supporting plate under the action of the locking assembly. The utility model aims to provide the exploiting, blasting and charging device for the underground metal mine so as to solve the problems that in the prior art, after a cartridge bag is blocked, a tamping bar needs to be inserted into a blast hole to push the cartridge bag to fall for dredging, but the tamping bar needs to be taken out after dredging every time, and the working efficiency is low.

The invention relates to an underwater rock plug blasting charging device and a using method thereof. The method is suitable for the technical field of underwater rock plug blasting engineering. The technical problem to be solved by the invention is to provide the underwater rock plug blasting charging device and the using method thereof. According to the technical scheme, the underwater rock plug blasting charging device comprises a waterproof pipe body, explosives, leg wires, fixing pieces, plugs and electronic detonators, a cavity is formed in the waterproof pipe body, an opening communicated with the cavity is formed in the single end of the waterproof pipe body, the explosives and the electronic detonators are installed in the cavity through the fixing pieces, and the explosives and the electronic detonators are arranged in the waterproof pipe body. A cavity is formed in the waterproof pipe body, a plug capable of plugging the cavity is arranged at the opening of the waterproof pipe body, one end of the leg wire is connected with the electronic detonator, and the other end of the leg wire penetrates through the plug and is at least partially positioned outside the waterproof pipe body; and when the waterproof pipe body is sealed by the plug, the interior of the cavity can be inflated to be adjusted to preset air pressure.

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.

According to the multifunctional annular blasting charging structure based on the shock wave superposition effect, a plurality of detonation points are annularly and evenly distributed on a detonation plane, circular wavefront propagation and efficient intersection and superposition of detonation waves are achieved by controlling synchronous errors to form a shock wave high-pressure area, and meanwhile the detonation waves crush an inner layer shell to form high-speed metal jet flow. The core of the invention lies in that the directional energy enhancement and detonation-energy-gathered penetration composite damage effect of the blasting charge structure is realized by accurately regulating and controlling the wave system interference effect and the metal jet flow forming mechanism.

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 invention discloses a determination method based on water medium decoupling, and the method comprises the following steps: S1, collecting a design scheme and a design drawing of a tunnel structure, and obtaining related design parameters of a blast hole; s2, the theoretical explosive loading amount is calculated according to the blast hole design parameters; s3, the theoretical explosive charge and the experience explosive charge are subjected to analogy analysis, and the initial blasting explosive charge is determined; s4, the blasting vibration speed is calculated based on the initial blasting explosive load; s5, verifying the blasting vibration speed calculated in the step S4 based on a safe vibration speed control standard in the blasting safety regulation; if the blasting vibration speed does not conform to the safe vibration speed control standard, the theoretical explosive load is recalculated until the blasting vibration speed meets the safe vibration speed control standard; according to the method, the method for calculating the explosive charge when the water medium non-coupling explosive charge blasting technology is applied is improved and corrected, the error in the aspect of explosive charge calculation is reduced, and the more efficient and more economical effect is achieved when smooth blasting is achieved.

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 invention discloses a blasting device capable of achieving segmented charging, and relates to the technical field of gold mine blasting, the blasting device comprises a charging assembly, the charging assembly is used for charging gunpowder into a blast hole, the blast hole is formed in a gold mine, the charging assembly comprises a base, the base is located at the top of the blast hole, and the top of the base is fixedly connected with a rotating shaft; the end part of the rotating shaft is fixedly connected with a servo motor, the servo motor is divided into a fixed end and an output shaft, and the output shaft end of the servo motor faces the side far away from the rotating shaft; the explosive charging assembly abuts against the hole wall of the blast hole through physical contact, chemical bonding is formed after the foam adhesive is cured, the problems that gravity and friction force in a deep hole and an inclined hole of the blast hole are insufficient and the like can be solved through combination of the explosive charging assembly and the foam adhesive, and therefore the explosive charging barrel can be fixed in a mechanical clamping and chemical bonding double-insurance fixing mode. The position of each section of explosive in a blast hole is independently limited, position shifting caused by contact or external force influence of upper and lower section charging is avoided, and it is ensured that the explosive is always located at the designed position in the whole blasting preparation process.

Approaches to loading explosives into blast holes to provide increased explosive density can involve loading the hole with a detonable charge in which energetic material is arranged into zones of differing densities. Related systems and methods may provide for parallel independent streams of energetic material having differing densities and delivering the differentiated streams into a bore hole so as to create an explosive charge therein having a particular geometric arrangement of material from the respective streams.

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.

The utility model discloses a charging structure for underholing blasting. The charging structure comprises a detonating device, explosives, a spacer and a blocking object. Wherein the spacer and the explosive are arranged at intervals, and the length of the spacer does not exceed the sympathetic detonation distance of the explosive; due to the fact that the wave velocity of the shock wave in the spacer is a fixed value and is far smaller than the wave velocity of the explosive detonation wave, the detonation time between the explosive cartridges can be adjusted by adjusting the length of the spacer, and the explosive cartridges in the charging structure are detonated one by one. According to the cutting blasting charging structure, the delay time between the cartridges can be adjusted, so that a plurality of reflection tensile waves are formed on a tunnel face, damage and throwing of rocks are facilitated, the cutting effect is improved, and the overall blasting effect is improved. In addition, the charging structure is easy and convenient to operate and controllable in cost in practical application, has high social and economic effects and can be used for underground blasting engineering such as tunnels and roadways.

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 technical field of blasting charge, and discloses a method for automatically detecting a blast hole crack hole and charge height in a charge process, which comprises the following steps of: conveying an explosive into a blast hole through an explosive conveying pipe, and setting a theoretical pipe withdrawing speed of the explosive conveying pipe; the pipeline conveying pressure change in the explosive conveying pipe withdrawing process is detected in real time; dynamically adjusting the tube withdrawing speed of the explosive conveying tube according to the change of the conveying pressure of the pipeline, enabling the tube withdrawing speed of the explosive conveying tube to be matched with the lifting speed of the explosive liquid level in the blast hole, and monitoring the explosive loading height in real time; judging whether a crack hole or an extrusion deformation defect exists in the blast hole according to the difference value between the actual explosive conveying pipe withdrawing speed and the theoretical explosive conveying pipe withdrawing speed; and when the difference value exceeds a preset range, triggering an alarm. According to the invention, accurate matching of the tube withdrawing speed and the explosive liquid level height can be realized, the explosive charging height is monitored in real time, defects such as blast hole cracks and holes are automatically identified, an alarm is given in real time, and the intelligent level, the safety and the filling uniformity in the explosive charging process are obviously improved.

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 invention discloses pre-splitting blasting charging equipment, a pre-splitting blasting device and a pre-splitting blasting method, which can enhance energy distribution in the direction of a pre-splitting surface, improve the energy utilization rate of stress waves generated by blasting and reduce damage to reserved rock mass during pre-splitting blasting. The presplitting blasting charging equipment comprises an outer sleeve and an inner core structural body. And the other end of the outer sleeve forms an opening. The inner core structural body comprises an inner pipe and two energy gathering plates; the inner tube is arranged in the center of the outer sleeve and is used for filling a detonating cord; the two energy gathering plates are arranged on the two opposite sides of the inner pipe in a back-to-back mode, the energy gathering plates are symmetrical, the symmetrical planes of the energy gathering plates are the presplitting faces of the presplitting blast holes, and each energy gathering plate and the inner side wall of the outer sleeve form an energy gathering cavity in a surrounding mode and used for containing finished cartridges. The finished product cartridge is fixed in the two energy gathering cavities, so that stress waves generated when the finished product cartridge explodes can be spread in the direction of the pre-splitting face of the pre-splitting blast hole under the energy gathering reflection effect of the energy gathering cavities.

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 invention relates to the technical field of mining, in particular to a presplitting blasting charging device and a using method, and the presplitting blasting charging device comprises a charging barrel head, a charging barrel splicing part and a plugging cover; wherein a conical end is arranged at one end of the medicine charging barrel head, the other end of the medicine charging barrel head is fixedly connected with the medicine charging barrel splicing parts through connecting parts, the adjacent medicine charging barrel splicing parts are fixedly connected through connecting parts, one end of each medicine charging barrel splicing part is in matched threaded connection with the plugging cover, and the other end of each medicine charging barrel splicing part is in threaded connection with the plugging cover. One of the medicine charging barrel splicing parts is fixedly connected with the medicine charging barrel head, the butt-joint screw ring at one end of the medicine charging barrel splicing part is in threaded connection with the butt-joint screw cavity in the barrel opening position of the end of the medicine charging barrel head, and then the medicine charging barrel splicing part and the medicine charging barrel head are further fixed through the connecting part. And then the explosive loading barrel splicing part is continuously spliced and installed, splicing can be conducted according to the actual depth of the blast hole, the corresponding length adjusting and controlling function is achieved, and the positive influence on the construction flexibility of the explosive loading barrel splicing part is achieved.

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.