66 results about "Explosive device" patented technology

An explosive downhole tool includes a housing having an upper housing part on one side of a window section and a lower housing part on an opposite side of the window section. An explosive charge is provided within the housing for at least one of cutting and expanding the wall of the tubular. The outer surface of at least one of the upper and lower housing part is rounded so as to be devoid of corners. The rounded surface eliminates the presence of sharp corners that may catch on restrictions or protrusions in a wellbore so that the downhole tool is more easily conveyable within a wellbore. Another explosive downhole tool includes fins extending from the housing. The fins have a height that decreases in a direction away from the housing. The shape of the fins enables the downhole tool to be more easily conveyable within the wellbore.

The header of an EED is redesigned to increase stiction forces to better hold the main charge throughout deflagration. The header includes a main charge holder, integrally formed or as a discrete component, that has internal structure that is press fit to a complementary outer surface of the main charge. The contact area between the internal structure and the main charge being greater than the contact area between a cylinder that circumscribes the internal structure (the uniform cylindrical shape of a typical EED contact area of π*D*L) to increase stiction forces between the main charge holder and the main charge. For a given diameter and length, the inclusion of the internal structure will reduce the mass of the main charge.

A system for delivering and activating a two-part explosive may include an unmanned vehicle and / or an elevated structure, and a two-part explosive device. The device may include a container that is attached to, and releasable from, the unmanned vehicle or elevated structure. The container may contain an unsensitized explosive enclosed in a casing and and a sensitizing agent adjacent to the casing. The device may include an opening mechanism positioned at least partially within the container and adjacent to the casing. The opening mechanism may open the casing and expose the unsensitized explosive to the sensitizing agent, forming the two-part explosive in response to the container being released from the unmanned vehicle or elevated structure. The device may include a detonator inside or attached to the container. The detonator may trigger ignition of the two-part explosive after the unsensitized explosive is exposed to the sensitizing agent.

The invention relates to an underwater platform releasing and cable cutting mechanism which comprises a releasing base, a shell, a push shaft, a releasing hook, an initiating explosive device, a watertight connector and a cable limiting structure. The shell is fixed to underwater equipment through the release base and provided with a closed pneumatic cavity, the push shaft is slidably connected to the pneumatic cavity, and the two ends of the push shaft extend out of the two ends of the shell. One extending end of the push shaft is matched with the release hook so as to limit the underwater platform to the underwater equipment; the other extending end of the push shaft is a cutting knife; the cable limiting structure limits the cable to one end corresponding to the cutting knife, and the position of the cable corresponds to the position of the cutting knife. The initiating explosive device is electrically connected with the underwater equipment through the watertight connector and used for receiving signals of the underwater equipment and releasing high-pressure gas to the pneumatic cavity, the high-pressure gas pushes the push shaft to move towards the cable, the push shaft is made to be disengaged from the release hook to relieve limiting of the underwater platform, and meanwhile the cutting knife moves to cut off the cable. According to the invention, the release of the test platform and the cutting of the cable can be synchronously completed, the full-water-pressure balance is realized, and the adaptability is high.

The invention provides a high-pressure gas membrane rupture pressure measuring device and a measuring method thereof, and belongs to the technical field of pressure measurement. The measuring device comprises a pressure generation system, a gas compression system, a gas injection system, a pressure measuring system and a diaphragm clamping system. The piston divides the cavity into a hydraulic cavity and a gas compression cavity, and the piston is hydraulically driven to compress the pre-filled gas, so that the diaphragm is broken. The pressure measurement system records pressure-time data in real time, and a sliding window average algorithm is adopted to extract a membrane rupture pressure peak value. According to the technical scheme, inert gas is used, initiating explosive devices are not used, membrane rupture energy is only gas expansion, the protection box can absorb fragments, and explosion-proof transformation is not needed in a laboratory. And the smoothed unique membrane rupture pressure value is output through a sliding window averaging algorithm, and manual reading errors are eliminated. According to the technical scheme, the device is compact in structure, safe to operate, rapid in testing and suitable for accurately measuring the diaphragm rupture pressure of the gas gun diaphragm in a conventional laboratory.

The utility model discloses a single foot twist break type transducing element. Including electrode plug, shell, fixed glue, solder and bridge silk. The utility model has designed single foot twist break type initiating explosive device structure in the country first, is a novel structure's transducing element for missile gyro, has higher firing reliability, twist break reliability and security, can be applicable to various gyro ignition, provides new train of thought for gyro design and structure optimization. Product adopts single foot structure electrode plug, double bridge parallel firing design, constitutes firing unit after filling detonating agent, integrates firing and working function, realizes product 700ma firing, 35MPa output pressure bearing, foot line 3.92N the twist break of cm, 59kPa vacuum ignition, damp heat, medium withstand voltage, electromagnetic compatibility, firing reliability 0.999 etc. technical index requirement. The utility model product reliability, security, versatility are high, and environmental adaptability is strong, and the technology reaches the leading level in the country, and the application prospect is wide, and military, economic benefit is remarkable.

Safe addressable firing controls positioned within a reusable housing that only allows voltage and current from the shooting panel to reach the explosive device by addressing the switch to open allowing electricity to pass through it and setting off the chain reaction during detonation, wherein the safe addressable firing controls positioned within a cartridge that creates a safety barrier between the surface equipment and a downhole tool, such as an explosive device.

The utility model relates to the technical field of army teacher training auxiliary tools, and discloses a weapon launching bidirectional acousto-optic smoke effect simulation device, which comprises a device main body, and a bidirectional initiating explosive device is fixedly connected in the device main body. According to the weapon launching bidirectional acousto-optic smoke effect simulation device, through cooperative arrangement of the device main body, a limiting groove, a reset spring and a fixed suction cup, the device main body is rotationally clamped into a 40mm rocket barrel during training use, and then the reset spring is driven to be compressed; when the device main body is rotated and clamped to a proper position, the fixed sucking disc stops moving and is adsorbed on the inner wall of a 40mm rocket barrel for anti-skid fixation, and when the device main body needs to be separated, the device main body can be pulled out by rotating and loosening the fixed sucking disc, so that the anti-skid adsorption and fixation effects on the weapon launching two-way acousto-optic smoke effect simulation device and the 40mm rocket barrel are achieved; the operation is simple, and the possibility of loosening and falling off is low.

The utility model discloses a circuit substrate structure as well as an electronic detonator control module and an electronic detonator comprising the circuit substrate structure, and belongs to the technical field of initiating explosive devices. The circuit substrate structure comprises a body, the body is of a long-plate-shaped structure, the body is provided with a containing through groove used for containing an energy storage capacitor, the containing through groove extends in the length direction of the body, the body forms a wide-edge bridge on one side of the containing through groove in the width direction, and the body forms a narrow-edge bridge on the other side of the containing through groove in the width direction. The narrow-side bridge is arranged right opposite to the wide-side bridge, the width size of the wide-side bridge is larger than that of the narrow-side bridge, and when the energy storage capacitor is placed in the placing through groove, the energy storage capacitor is located on the inner side of the placing through groove in the horizontal direction; and the narrow-side strength enhancing structure is arranged on the narrow-side bridge and is used for enhancing the strength of the narrow-side bridge. The circuit substrate structure provided by the utility model is beneficial to reducing the size of the protruding body of the energy storage capacitor and improving the reliability and stability of the energy storage capacitor.

The invention relates to an initiating explosive device ignition circuit, in particular to a comprehensive electronic equipment initiating explosive device ignition circuit capable of suppressing power-on peak voltage, and aims to solve the problems that when an existing initiating explosive device ignition circuit works, microsecond-level power-on peak voltage can be generated at the output end, mistaken activation of an initiating explosive device is easily caused, and the power-on peak voltage cannot be suppressed. And therefore, the problem of harm to products and personnel is solved. A power-on peak voltage suppression module is added between PMOS transistors and a VCC power supply, the power-on peak voltage suppression module comprises two PMOS transistors, and the source electrodes of the two PMOS transistors are connected with the VCC power supply; the grid electrode of the PMOS tube V3 is connected to the ground through a resistor R5 and a resistor R108, and the grid electrode of the PMOS tube V4 is connected to the ground through a resistor R6 and a resistor R108; a soft start time control resistor is connected in series between the resistor R5, the resistor R6 and the resistor R108. And a first delay capacitor bank is connected in parallel between the source electrodes of the PMOS tubes V3 and V4 and the resistor R5 and the resistor R6, so that the conduction time of the PMOS tube V1 is delayed after the VCC power supply is powered on, and the power-on peak voltage is suppressed.

The invention discloses an integrated multi-mode electric baking explosion testing device for an electric initiating explosive device, which belongs to the technical field of initiating explosive device testing and comprises a measurement and control cabinet, a multi-mode testing module integrated in the measurement and control cabinet, an industrial control data acquisition system and a human-computer interaction interface. The multi-mode test module integrates four functional modules of alternating current baking explosion, direct current baking explosion, 10A1S safety current test and 12V dry battery baking explosion, and can meet various test working conditions required by national military standards. The industrial control data acquisition system serves as a core, uniformly controls all test processes, and realizes real-time and high-precision acquisition and dynamic analysis of key parameters such as voltage and current in an experiment process. The problems that a traditional testing method is single in function and insufficient in data collection are solved, and an efficient, accurate and safe integrated testing solution is provided for research, development, production and reliability evaluation of initiating explosive devices.

The utility model belongs to the technical field of initiating explosive devices, and discloses a metal flyer transduction element for a slapper detonator, which comprises a substrate (1), an adhesion layer (2), a bridge foil (3), an insulating layer (4), a metal flyer (5), an acceleration chamber (6), an electrode I (7) and an electrode II (8), the adhesion layer (2) is attached to the substrate (1) in a magnetron sputtering manner; the bridge foil (3) is attached to the adhesion layer (2) in an electroplating or magnetron sputtering mode and is in a bridge shape. The first electrode (7) and the second electrode (8) are made of the same material as the bridge foil (3) and are arranged at the two ends of the bridge shape of the bridge foil (3); the metal flyer (5) is attached to the insulating layer (4) in an electroplating or magnetron sputtering manner and is circular; and the accelerating chamber (6) is arranged on the outer surface of the metal flyer (5). According to the utility model, excessive loading and neglected loading of flyers and entry of foreign matters in the transduction element assembly process are effectively avoided, and the production quality control of the transduction element is improved.

The utility model belongs to the technical field of initiating explosive devices, and discloses an embedded high-overload-resistant slapper detonator which comprises a shell (1), an output grain (2) is embedded and clamped on one side of the shell (1), a fastening compression ring (3) is clamped on one side of the output grain (2), and a starting grain (4) is clamped on one side, far away from the output grain (2), of the fastening compression ring (3). And an acceleration chamber (5) and a flyer (6) are arranged on one side, far away from the fastening compression ring (3), of the starting grain (4). According to the technical scheme provided by the utility model, the problem of energy transmission interruption or detonation failure caused by assembly looseness is avoided, the structural stability and reliability of the detonator in a high overload environment are greatly improved, and normal detonation under various extreme conditions is ensured.

The utility model discloses an initiating explosive device transportation detection electromagnetic protection box, which relates to the technical field of initiating explosive device transportation and comprises a box body, a box cover arranged at the top of the box body, a waterproof edge formed by bending a metal plate at the edge of an upper side port of the box body, a water vapor sealing ring fixed on a platform at the bottom of the waterproof edge, and a conductive sealing ring fixed on the inner side of the bottom of the box cover. An observation window is installed on the box cover and is made of flexible shielding glass, grooves are formed in the left side and the right side of the box body, electromagnetic shielding sleeves extending into the box body are arranged on the grooves, side opening covers installed on the box body are correspondingly arranged on the outer sides of the electromagnetic shielding sleeves, and initiating explosive device detection work can be conveniently carried out through the observation window before use; the conductive sealing ring can abut against the waterproof edge of the upper port of the box body in a contact mode, reliable electric connection is formed, the electromagnetic protection effect is achieved, the performance stability of the initiating explosive device is improved, the probability of accidents is reduced, protection detection is conducted through the electromagnetic shielding sleeve before the initiating explosive device is used, and the quality performance of the initiating explosive device is ensured.

The invention discloses a volume-variable initiating explosive device weighing and charging system, and relates to the technical field of initiating explosive device weighing, a high-precision servo motor is used for automatically carrying out online adjustment on the volume of a metering plate, the adjustment process is controlled, the output torque is detected, the adjustment process is safe and accurate, and the workload of workers is greatly reduced. During production, the control system automatically adjusts the volume of the metering plate online in real time according to the matching condition of the current constant-volume explosive quantity and the target explosive quantity, the explosive loading precision is high, meanwhile, the problem of continuous rejecting caused by density change due to explosive batch changing or explosive layering is solved, the production efficiency is improved, operation of workers on the metering plate and the explosive is reduced, and the labor intensity of workers is reduced. The production safety is improved. The volume of the metering plate can be adjusted with high precision within a certain range, and the metering plate is large in adjustable dose interval and can adapt to flexible production of various products.

The invention provides an on-line detection locking isolation type ignition circuit, which relates to the technical field of ignition and comprises an ignition control loop and a detection circuit, the ignition control loop is in isolated connection with the detection circuit; the ignition control loop comprises an energy storage and initiating explosive device branch and a control signal isolation and driving branch; the energy storage and initiating explosive device branch and the control signal isolation and driving branch are connected through a DC-DC converter U2; the detection circuit comprises a voltage detection and isolation branch and a signal processing and locking branch; the voltage detection and isolation branch is connected with the signal processing and locking branch through an optical coupler U3; and the signal processing and locking branch is connected with an optocoupler U1 in the control signal isolation and driving branch through a triode. According to the invention, the working reliability of the circuit is improved, it is ensured that electric signals are not accidentally output to the initiating explosive device, the ignition effect is ensured, the adaptability is good, the online detection function is ensured, the safety locking mechanism is improved, multiple electrical isolation is ensured, and the high reliability is increased.

The invention relates to a reusable handheld netting device and a using method thereof. The netting device comprises an energy storage module, an excitation control module and an execution module. Two ends of the excitation control module are respectively connected with the energy storage module and the execution module; a capturing net is arranged in the execution module; a gas cylinder part for storing high-pressure gas is arranged in the energy storage module; the excitation control module is used for triggering release of high-pressure gas in the energy storage module and controlling the high-pressure gas to directionally flow to the execution module; the execution module is used for driving the capturing net to launch according to the high-pressure gas provided by the energy storage module. According to the scheme, through the modular design, modular installation of the net catching device can be achieved, installation and assembly are convenient, and replacement and repeated use are convenient. According to the scheme, no initiating explosive device exists inside, no high-pressure gas exists during storage and transportation, maintenance can be conducted according to common equipment, repeated use can be achieved in the aspect of economic benefits, and therefore the use cost is effectively reduced.

The invention discloses a ground artificial precipitation combustion furnace device, which belongs to the technical field of artificial precipitation, and comprises a furnace body, a chimney, a combustion organization system, a high-pressure air system, a kerosene supply system, a power supply, a charging port and a controller, the combustion organization system comprises a partition plate, an air inlet blade grid, a fixing frame, a pneumatic nozzle, an ignition electric nozzle and a flame thermocouple. The high-pressure air system comprises an air filling port, a high-pressure air tank, a pressure sensor, a temperature sensor, a pressure regulating valve, a switch valve, an air pipeline and the like; the kerosene supply system comprises an oil filling port, a kerosene storage tank, an oil pump, a liquid flowmeter and a kerosene pipeline; the device avoids cigarette initiating explosive device management and control, achieves accurate regulation and control of the combustion state and operation automation, reduces the comprehensive cost, improves the effective formation quality of a catalyst and the operation reliability, and is suitable for ground artificial precipitation enhancement scenes such as hilly and mountainous areas and unattended operation.

The invention discloses an unmanned initiating explosive device destroying device and method. Through a pitch angle adjusting assembly composed of a lead screw, a threaded sleeve and a connecting rod, a driving gear drives a driven gear and the lead screw to rotate, and the rotating motion of the lead screw is converted into linear lifting motion of the threaded sleeve through a thread pair; limiting strips on the two sides of the threaded sleeve slide along guide strips of an inner cavity of the shell, stable movement of the threaded sleeve is guaranteed, lifting of the threaded sleeve pushes the mounting base to rotate around a hinge point of the mounting base and the top of the shell through a connecting rod movably connected with the threaded sleeve, and the pitch angle of the laser transmitter is accurately adjusted. A corresponding horizontal angle adjusting assembly is formed by a driving gear and a gear ring, the driving gear is driven to rotate by controlling a motor, the whole shell, the mounting base on the top of the shell and the laser transmitter are driven to horizontally rotate around a vertical axis, and coarse adjustment and fine adjustment of a target azimuth angle are achieved. The pitching angle and the horizontal angle of the laser transmitter are accurately adjusted, so that explosives can be remotely and accurately ignited, and the safety and the ignition efficiency are improved.

The application discloses an explosion-proof carrying equipment for initiating explosive, and relates to the technical field of carrying of initiating explosive.The application comprises a mechanical arm transfer part and a carrying assembly capable of moving on a horizontal transfer guide rail, wherein the carrying assembly comprises a moving base, a lifting transfer frame, a tray seat and an extrusion plate for clamping an explosion-proof box body.The bottom of the explosion-proof box body is communicated with two exhaust rotary discs through a second step hole, a sealing sheet, a first step hole and a central rotary column pipe.A hollow circular cavity, a centrifugal lever and a tangential exhaust hole are arranged in the exhaust rotary disc, and high-pressure gas pushes the exhaust rotary disc to rotate and discharge during explosion.The two exhaust rotary discs rotate in opposite directions to offset the torque, and a counterweight circular ring layer improves the rotation stability, so that the explosion-proof box body is lifted and transferred, and the sudden explosion pressure relief and carrying stability are improved.

The invention discloses a short-time continuous stable gas production charging column and a preparation method thereof, and belongs to the technical field of explosive powder. The invention comprises: a thin-wall metal tube as a skeleton; the combustion material is adhered to the inner wall and / or the outer wall of the thin-wall metal pipe; the fire transfer channels are arranged at the two ends of the thin-wall metal pipe and are used for balancing the pressure inside and outside the thin-wall metal pipe and uniformly igniting the combustion material; wherein the two ends of the combustion material do not exceed the inner side end of the fire transfer channel, and the charging column is configured to achieve a surface-increasing, equal-surface or surface-reducing combustion mode through bonding combination of the combustion material and the thin-wall metal pipe; the problem that an existing charging structure cannot meet the requirement for short-time continuous and stable gas production of an initiating explosive device is solved.

The application discloses a method for recycling fine-crystal medicaments generated in a nickel hydrazine nitrate combination process, and belongs to the field of initiating explosive devices and explosive medicaments, and comprises collection of the fine-crystal medicaments and granulation of the fine-crystal medicaments; under the premise that the combination process and device of the nickel hydrazine nitrate are not changed, the fine-crystal nickel hydrazine nitrate is recycled through the crystallization collection technology and the secondary granulation technology, the yield of the nickel hydrazine nitrate is improved, the waste gas produced in the waste medicament destruction process is eliminated, and the environmental protection is improved; the obtained granulated nickel hydrazine nitrate is detected by using a particle size analyzer, and the particle size distribution of the granulated nickel hydrazine nitrate is as follows: 20 mesh to 40 mesh particles account for about 30% of the product, 40 mesh to 60 mesh particles account for about 35%, and 60 mesh to 100 mesh particles account for about 35%, so that the particle size distribution is relatively uniform.

The application relates to the field of safety equipment for producing pyrotechnics, and discloses an intrinsic safety type sweeping equipment suitable for a high-risk scene of producing pyrotechnics, which comprises an intrinsic safety type structure assembly, a gas-liquid mixed dust catching assembly, a multi-stage separation and filtering assembly and a circulating water purification assembly which are integrally arranged with the intrinsic safety type structure assembly, and is further provided with a real-time risk monitoring system, an explosion-proof device and a telescopic flexible dust collecting device. The gas-liquid mixed dust catching assembly realizes frictionless dust catching, the multi-stage separation and filtering assembly realizes gas-liquid separation, the circulating water purification assembly realizes closed-loop water circulation, the monitoring system realizes real-time parameter acquisition and threshold value early warning, the explosion-proof device realizes linkage cooling and explosion suppression, and the flexible dust collecting device is extended to a high place and a complex area for cleaning. The application realizes intrinsic safety of the equipment, realizes automatic cleaning of energetic powders, greatly reduces the labor intensity, realizes omnibearing and dead angle-free cleaning of a production area, and is completely suitable for the high-risk scene of producing pyrotechnics.

The utility model provides a negative pressure paint dipping and glue filling exhaust tool structure, which relates to the technical field of negative pressure transformers, and comprises a piston structure assembly, a cover plate assembly, a tank body, a piston cylinder, an O-shaped sealing ring, a flange nut, a hand wheel, a lock washer, a round nut, a grate, a pin shaft, a cotter pin, a movable joint stud and a lifting ring nut, cotter pins are arranged on the two sides of the tank body, the cover plate assembly and the tank body are matched, bolted and fixed through a movable joint stud, a lifting ring nut and the cotter pins, a piston cylinder is transversely fixed to the lower portion of the tank body, the piston cylinder and the tank body are bolted and fixed, and an O-shaped sealing ring is arranged between the piston cylinder and the tank body for sealing. The device is convenient to use, the possibility of burning explosion caused by the fact that voltage enters a diluent or an initiating explosive device is effectively reduced and eradicated, the production safety is improved, meanwhile, the device is flexible to use and convenient to move, and the use efficiency of the device is improved.

An apparatus for disabling of motor vessels moving in a waterbody. An energetic (i.e. explosive), as part of a floating assembly, is brought into contact with a motorized marine vessel's propulsion unit(s) and / or steering system, referred to generally as the underwater drive unit, due to the vessel's own motion relative to a floating line. The energetic then detonates and disables the underwater drive unit, thereby halting progress of the vessel while not harming any occupants thereof.

An actuator, an actuator assembly, a motor controller, a motor assembly, and a vehicle. The actuator comprises: a housing (10), wherein the housing (10) defines an accommodating cavity, a first side wall (11) of the housing (10) is provided with a first opening (12), and the housing (10) is further provided with a through hole (13); a moving member (20); a reinforcing member (30), wherein the reinforcing member (30) is provided with a second opening (32) in communication with the first opening (12); and an explosive device (40), wherein the explosive device (40) is configured to generate an impact force upon ignition so as to drive the moving member (20) to partially extend out of the housing (10) through the through hole (13), the explosive device (40) comprises a fuse (41) and a detonator (42), one end of the fuse (41) is connected to the detonator (42), and the other end of the fuse (41) passes through the first opening (12) and the second opening (32) and extends out of the housing (10); and the orthographic projections of the reinforcing member (30) and the detonator (42) on the first side wall (11) at least partially overlap. The reinforcing member covers at least a portion of the first side wall of the actuator housing to enhance the structural strength of the first side wall, so that the first side wall is less susceptible to damage, thereby reducing the likelihood of impact forces damaging the first side wall and affecting external components.

The header of an EED is redesigned to increase stiction forces to better hold the main charge throughout deflagration. The header includes a main charge holder, integrally formed or as a discrete component, that has internal structure that is press fit to a complementary outer surface of the main charge. The contact area between the internal structure and the main charge being greater than the contact area between a cylinder that circumscribes the internal structure (the uniform cylindrical shape of a typical EED contact area of π*D*L) to increase stiction forces between the main charge holder and the main charge. For a given diameter and length, the inclusion of the internal structure will reduce the mass of the main charge.

The invention provides a ball explosion device applying a schlieren system. The ball explosion device comprises a spherical explosion container and a support used for supporting the spherical explosion container. The top of the spherical explosion container is provided with a cover for sealing the spherical explosion container, the cover is provided with an ignition system, the spherical explosion container is provided with a schlieren device and a pressure sensor, and the bottom of the spherical explosion container is provided with an injection system communicated with the interior of the spherical explosion container. Visual observation of the whole dust explosion process is achieved, the dust cloud formation, flame propagation and shock wave structure change process can be visually obtained, meanwhile, synchronous collection of pressure signals and schlieren images is achieved, and the corresponding relation between pressure change and the burning and explosion form can be easily established.

Explosive device deployment apparatus 2 comprises coupling means 5 to permit the apparatus 2 to be coupled to an aircraft 1 such as an unmanned aerial vehicle (UAV), in use. The apparatus 2 also inclu

The present disclosure presents an explosive device and its construction method, wherein the explosive device comprises: several first explosive assemblies, the first explosive assemblies comprising: several first charge rollers and several first water rollers, wherein the several first charge rollers and the several first water rollers are each arranged in a first blast hole in a target blast surface, and the first water rollers are provided with a first water solution, wherein the first water solution is designed to enhance the explosive effect;Several second blasting assemblies, the second blasting assemblies comprising: several second charge rollers and several second water rollers, the several second charge rollers and the several second water rollers each being arranged in a second blast hole of the target blast area, and the second water rollers being provided with a second water solution, the second water solution being designed to enhance a dust adhesion effect; the several second blasting assemblies being arranged around the several first blasting assemblies. With the blasting device and its construction method provided by the present disclosure, the construction environment of the target blast area can be effectively improved, and at the same time, the blasting costs of the target blast area can be reduced.