29 results about "Detonation velocity" patented technology

The invention discloses a method for rapidly judging the sensitization effect of an on-site mixed emulsion explosive. The method comprises the following steps: S1, a laboratory calibration stage: simulating an on-site sensitization process to prepare a calibrated explosive sample; the sampling device collects and calibrates explosive samples, the millimeter graduated scale is arranged above the sampling device, and the camera shoots and counts the number of bubbles; detecting the density and the detonation velocity, and establishing an incidence relation of bubble number-density-detonation velocity in the specified millimeter scale and a qualified range; s2, an on-site detection stage: calibrating a millimeter graduated scale, camera equipment and a sampling device which are consistent in specification in a laboratory; the sampling device collects an on-site explosive sample, the graduated scale is arranged above the sampling device, the camera shoots and counts the number of bubbles, and the sensitization quality is judged by comparing with a laboratory calibration association relationship. According to the invention, the problems of long detection period of a traditional laboratory, strong subjectivity of existing field detection and high requirement on professional level of detection personnel can be solved, and real-time, accurate and low-cost detection of field sensitization quality is realized.

The invention relates to the technical field of blasting, and discloses a rock mass longitudinal wave velocity inversion method based on blast hole detonation velocity measurement, which comprises the following steps: drilling a blast hole; explosive and a monitoring probe of monitoring equipment are arranged in the blast hole; detonating the explosive, monitoring and outputting a curve chart that the propagation distance of the detonation wave changes along with the propagation time through monitoring equipment, the longitudinal coordinate of the curve chart being the propagation distance of the detonation wave, and the horizontal coordinate of the curve chart being the propagation time of the detonation wave; according to the distribution condition of each rock stratum in the blast hole, the curve graph is divided into a plurality of curve segments, and each curve segment corresponds to the propagation process of detonation waves in the corresponding rock stratum; the slope of each curve section is calculated, and actually measured explosive detonation velocities of different rock stratums are obtained; and substituting the actually measured explosive detonation velocity into the theoretical formula of the explosive detonation velocity and the longitudinal wave velocity of the rock, and inverting the longitudinal wave velocity of the corresponding rock stratum. Through the inversion method provided by the invention, detonation wave monitoring and longitudinal wave velocity inversion of different rock stratums through which the blast hole passes can be completed through one-time blasting.

The utility model discloses a device for detecting the detonation velocity of on-site mixed emulsion explosive in a blast hole, and particularly relates to the technical field of explosive detonation velocity detection, the device comprises a first positioning ring and a second positioning ring, the two positioning rings with semi-ring structures are hinged through a rotating roller hinge and can be accurately positioned around the blast hole, a stable foundation is provided for explosive detonation velocity detection, and the explosive detonation velocity detection efficiency is improved. The first positioning ring is provided with a needle inlet hole, the second positioning ring is provided with a needle outlet hole, the axes of the two holes coincide, the aperture ratio of the two holes is three to one, a clear penetrating path is provided for a steel needle, and the detection precision is improved. A plurality of guide plates are encircled to form a cylindrical structure, so that the steel needle can be guided and subjected to posture control from different directions, the steel needle is ensured to advance along the axis, the device can adapt to steel needles with different diameters, the universality of the device is improved, the device is simple to mount and operate, and the assembly for measuring the detonation velocity of the emulsion explosive can be quickly completed.

This invention discloses a research and testing method for detonation velocity tubes, comprising the following steps: Step 1, point setting; Step 2, point connection; Step 3, influence determination; Step 4, numerical judgment. This invention, by improving the data reading points of the detonation velocity tube and reducing the difference in the sampling test system, comprehensively verifies the detonation velocity test and uses two or more data points to cross-reference the validity of the detonation velocity value. If the data from two points far from the detonating bomb are significantly greater than the values ​​from two adjacent points, the first set of values ​​can be considered significantly affected by the detonating bomb, and this set of data is invalid. If the difference between the values ​​from the second and third sets of data points is less than 200 m / s, it can be considered a valid detonation velocity. If the difference between two adjacent sets of data is large, it can be considered that the explosive stability is insufficient. This method is beneficial for fundamentally solving the evaluation of explosive raw material performance and simultaneously reducing the significant error brought by the detonation velocity of the detonator to the detonation velocity measurement, effectively evaluating the performance and stability of explosives.

This application discloses a method for obtaining the detonation velocity and detonation pressure of energetic materials based on atomic-scale dynamics, relating to the field of materials science and technology. The method includes: acquiring an initial configuration file of the energetic material to be tested, and performing dynamic processing on the initial configuration file using a materials simulation model to generate a first training dataset; iteratively training the potential function using the first training dataset to obtain a structure file corresponding to each generation of training; sampling and screening the structure files, and calculating the accuracy adjustment parameters corresponding to the sampled and screened structure files using first-principles calculation software; adjusting the parameters of the materials simulation model using the accuracy adjustment parameters, and using the adjusted materials simulation model to generate a second training dataset from the structure files obtained from each generation of training and the first training dataset; and predicting the performance of the energetic material to be tested based on the potential function trained on the second training dataset. A general method for predicting material properties that balances accuracy and efficiency is proposed.

The invention provides a method for determining the detonation speed of an explosive used for tunnel caving blasting by considering the influence of ground stress, and belongs to the technical field of blasting engineering and rock mass mechanics. Comprising the steps of obtaining rock mass mechanical parameters, blasting parameters and crustal stress data; establishing a stress analysis model based on ground stress and a blasting design drawing; establishing a crustal stress redistribution model caused by a cut cavity in the model, calculating radial pressure stress generated by crustal stress redistribution among the caving holes, and drawing a polar coordinate graph; establishing a collapse inter-hole explosion stress superposition model, and calculating circumferential tensile stress generated by explosion at the central points of the two holes; and based on the dynamic tensile strength and stress state of the rock, establishing a strength criterion for forming the inter-hole through crack, and deducing and solving the minimum explosive detonation speed required by the criterion. The blasting joint forming quality is effectively improved, back break is controlled, surrounding rock damage is reduced, and the safety, economical efficiency and reliability of blasting engineering are improved.

The invention discloses a stepped graded explosive filling method for roadway tunneling, which comprises the following steps: before blasting construction, according to the material parameter difference and the detonation velocity difference of adjacent charging sections in a stepped charging structure, measuring the reflection intensity and the energy transfer sequence of blast waves in blast holes one by one, and establishing an energy propagation trajectory diagram of each blast hole; and a boundary reflection response spectrogram is generated at the final position of the energy propagation trajectory. By constructing an energy propagation track and a coupling parameter scale chain and accurately regulating and controlling a charging structure and an energy release process, layered energy transfer and time sequence avoidance are realized, energy turn-back and advanced detonation are eliminated, vibration and overexcavation risks are remarkably reduced, the blasting efficiency, safety and construction controllability are improved, and a stable and adjustable energy balance closed loop is formed. According to the method, the tunneling crushing efficiency, the construction controllability and the field safety margin can be improved at the same time, and a quantifiable feedback basis is provided for closed-loop monitoring correction and engineering popularization.

The invention relates to a detonation velocity measurement system and method, in particular to a system and method for measuring the detonation velocity of an explosive through an energy-type demodulation femtosecond fiber grating, and solves the technical problem that an existing method is difficult to realize precise positioning of an explosion wave surface and long-distance detonation velocity measurement. The system comprises a broadband laser, a circulator, a sensing grating string, a photoelectric detector and a control unit, the control unit is used for controlling the broadband laser to emit an optical signal, the optical signal is transmitted to the input end of the sensing grating string through the first terminal and the second terminal of the circulator and enters the third terminal through the second terminal after being reflected by the sensing grating string, and the third terminal transmits the optical signal to the input end of the photoelectric detector; the photoelectric detector converts reflected optical signals into analog electric signals in real time and sends the analog electric signals to the control unit, and the control unit is used for processing the analog electric signals to obtain the explosive detonation velocity. According to the method, the error of the arrival time point of the explosive shock wave of the explosive can be controlled within 1%.

The invention discloses an inner salt type high-energy density insensitive explosive and a preparation method thereof, 9-amino-2, 6-dinitro-bis [1, 2, 4] triazolo [1, 3, 5] triazine, namely ZDTT, is prepared, and the ZDTT has the performance advantages of high energy density and insensitivity and also has the advantage of simple synthesis process; zDTT has a unique inner salt type condensed ring structure and is insoluble in water and conventional organic solvents. The ZDTT actual measurement density is 1.881 g.cm <-3 >, the detonation velocity is 8757 m.s <-1 >, the detonation pressure is 31.7 GPa, the initial thermal decomposition temperature is 330 DEG C, the impact sensitivity is larger than 40 J, the friction sensitivity is larger than 360 N, and the high-energy-density insensitive explosive has huge application potential in the field of high-energy-density insensitive explosives.

The application discloses a laser loading energetic material detonation velocity rapid prediction method and system, and belongs to the field of energetic material detonation performance detection. The application uses a pulse laser to interact with an energetic material to generate a shock wave, uses a single-point APD detector to record and store voltage changes of the APD, obtains an attenuation signal of the shock wave when the shock wave passes through a detection light beam, extracts interval time between a pulse signal and different height attenuation peaks from the energetic material surface, fits a time-position relationship through a corrected point explosion model, obtains corresponding shock wave characteristic velocity, establishes a linear regression relationship with a macroscopic detonation velocity, and realizes rapid prediction of the energetic material detonation velocity. The application only needs 5-10 mg of a sample, realizes extraction of the shock wave velocity of the energetic material through a single-point detector, obtains the shock wave characteristic velocity, linearly fits the shock wave velocity and a known detonation velocity, and predicts the energetic material detonation velocity. The application can improve the research and development efficiency of the energetic material and reduce the research and development cost.

The application provides a TNBA cast explosive and a preparation method thereof, and belongs to the technical field of cast explosive preparation. The TNBA cast explosive is prepared according to the mass percentage of 50.6-55.2% of a liquid carrier, 4.4-4.8% of a fluxing agent and 40-45% of a solid filler. The TNBA cast explosive prepared by the application has the following advantages: the liquid carrier and the fluxing agent have high density, low volatility, low toxicity, low sensitivity and good formability, and no shrinkage hole and crack after pouring; the solid filler has the characteristics of high energy, low sensitivity, high density and high explosion heat; the raw material cost is low, the preparation process is simple, and the explosive can be produced on a large scale; compared with the existing explosives, the cast explosive has high oxygen balance, can generate more heat, has high density, detonation velocity, explosion heat and explosion pressure, and low impact sensitivity, and has higher performance than ordinary explosives.

The invention relates to a preparation method of a magnesium hydride powder emulsion explosive, and belongs to the technical field of emulsion explosives. The preparation method of the magnesium hydride powder emulsion explosive comprises the following steps: heating and mixing ammonium nitrate, sodium nitrate and deionized water to obtain a water-phase substance; and stirring and mixing the paraffin, the emulsifier and the assistant to obtain an oil-phase substance, putting the oil-phase substance into an emulsifying machine, slowly adding the water-phase substance for emulsifying, and slowly adding the high-energy sensitizer under a stirring condition to continuously stir to obtain the high-energy sensitizer. According to the prepared high-energy sensitizer, the energy density and the release efficiency are improved through synergism of all the components, the energy output strength during emulsion explosive explosion is enhanced, and the brisance is remarkably improved; the constructed efficient energy transfer network accelerates detonation wave propagation, energy loss can be effectively reduced, and the detonation velocity can be effectively improved.

The application discloses a high-energy heat-resistant energetic complex Li-ZDPT and a preparation method thereof. A novel high-energy heat-resistant explosive preparation method with simple preparation process, mild reaction condition and high yield is developed by taking 3,5-diamino-4-nitro pyrazole as a starting material, and a high-energy heat-resistant explosive Li-ZDPT with novel structure and excellent comprehensive performance is prepared. In addition to the characteristics of high energy and high heat stability, the Li-ZDPT also has the advantages of simple preparation method and high yield. The thermal decomposition temperature of the Li-ZDPT is as high as 436 DEG C, the theoretical detonation velocity is 8096 m / s ‑1 , the actual measured impact sensitivity is greater than 40 J, and the friction sensitivity is greater than 360 N. The excellent comprehensive performance of the Li-ZDPT makes it have great application potential in the field of high-energy heat-resistant explosives.

The application discloses a numerical simulation method and system for liquid oxygen rock breaking, and the numerical simulation method comprises the following steps: continuously measuring the detonation velocity and the blast pressure load of an energy storage tube on a liquid oxygen rock breaking site, obtaining the measured detonation velocity and the measured blast pressure load, and extracting key parameters from the measured blast pressure load; fitting an equivalent load curve by using a set mathematical model based on the key parameters; establishing a liquid oxygen rock breaking simulation model in a numerical simulation software; applying the equivalent load curve as input to the outer wall of the simulation energy storage tube, performing dynamic calculation to simulate rock blasting in a liquid oxygen environment, so as to obtain the liquid oxygen rock breaking effect and obtain a simulated detonation velocity; judging whether the equivalent load curve and the liquid oxygen rock breaking simulation model are reliable according to the simulated detonation velocity and the measured detonation velocity, and correcting the equivalent load curve or the liquid oxygen rock breaking simulation model if not. The application can solve the technical problems of numerical simulation difficulty and inaccurate prediction in the liquid oxygen rock breaking technology.

The utility model discloses an on-site mixed loading explosive detonation velocity measuring device which comprises a testing site, a testing hole is manually dug in the testing site, an installation plate is fixedly installed on the testing site through bolts, the installation plate corresponds to the testing hole in position, a fixing block is fixedly installed in the middle of the interior of the installation plate, and the fixing block is fixedly connected with the testing hole through bolts. And a detection sensor used for detecting the detonation velocity of the explosive is fixedly installed on the lower surface of the fixing block, an explosive charging barrel is arranged in the testing hole, and the explosive charging barrel is filled with gunpowder. According to the onsite mixed loading explosive detonation velocity measuring device, novel structural design is adopted, gunpowder is loaded into the explosive loading barrel, then the explosive loading barrel is placed into the testing hole, in the process, the connecting plate is extruded through the elastic effect of the connecting reed, so that the connecting plate is opened towards the left side and the right side, and the extruding roller at the top end of the connecting plate is used for extruding the inner wall of the testing hole to fix the explosive loading barrel; therefore, the medicine loading cylinder is fixed at a certain designated position in the test hole.

The application provides a kind of explosive performance simulation design method based on energy, safety and process, comprising: step one, the simulation model between the chemical composition of explosive formula and detonation velocity is established, that is, the energy performance simulation model of explosive formula;Step two, the simulation model between the sensitizing chemical group contained in explosive formula and impact sensitivity is established, that is, the safety performance simulation model of explosive formula;Step three, the simulation model between the average particle size of raw material in explosive formula and dynamic viscosity is established, that is, the process performance simulation model of explosive formula;Step four, on the basis of step one, step two and step three, the comprehensive performance characterization parameter is taken as the comprehensive processing result of explosive detonation velocity, explosive impact sensitivity and explosive dynamic viscosity, and the comprehensive performance simulation model of explosive formula is established.The simulation model construction method involved in the application has clear and distinct levels, the comprehensive performance characterization parameter is formed by linear weighting of detonation velocity, impact sensitivity and dynamic viscosity, so that the comprehensive performance of a group of explosive formulas with different component contents is analyzed and compared, and has a wide range of application.

The invention relates to the technical field of detonation velocity prediction, in particular to an emulsion explosive thermal aging detonation velocity decay prediction method, which comprises the following steps: acquiring boundary conditions of emulsion explosive thermal aging, acquiring detonation velocity characteristic parameters corresponding to the boundary conditions based on the value range of each boundary condition, and constructing a detonation velocity correlation model; determining a currently processed association entity from the detonation velocity association model, and acquiring at least one group of association parameters from the detonation velocity association model according to a combination relationship of the association entity; under the conditions of temperature and sensitizer types, according to the difference of heating time and detonation velocity, the associated parameters are fitted into a detonation velocity attenuation curve, and the variation trend of the detonation velocity attenuation curve is determined based on the value range of the attenuation rate of the detonation velocity attenuation curve; based on the change trend of the detonation velocity attenuation curve, selecting temperature nodes in the detonation velocity attenuation curve, and triggering data configuration early warning according to the deviation proportion under each temperature node; the accuracy and efficiency of detonation velocity attenuation prediction are realized.

The invention belongs to the field of material safety testing, and discloses a comprehensive testing system for judging energetic material mixed liquid pipeline explosion propagation, which comprises a testing module, a detonation velocity measuring module, an overpressure measuring module, a video monitoring module, a synchronous triggering module and a data acquisition module, and is characterized in that the testing module comprises a testing pipe, a plastic plug and an initiating explosive column; the detonation velocity measurement module comprises a detonation velocity sensor; the overpressure measurement module comprises a shock wave overpressure sensor; the video monitoring module comprises an anti-explosion shelter and a high-speed camera; the synchronous trigger module comprises a metal target wire and a trigger body, and the metal target wire is wound on the initiating explosive column; the data acquisition module comprises a data acquisition instrument, and the detonation velocity sensor, the shock wave overpressure sensor, the high-speed camera and the trigger body are all connected to the data acquisition instrument. The explosion velocity, overpressure and image measurement modules are integrated, multi-parameter synchronous acquisition and cooperative comparison of explosion shock wave velocity, external overpressure and real-time images are realized, and the credibility of a judgment result is high.

The present application relates to the technical field of detonation velocity prediction, in particular to an emulsion explosive thermal aging detonation velocity attenuation prediction method, comprising: obtaining the boundary conditions of emulsion explosive thermal aging, obtaining the corresponding detonation velocity characteristic parameters under the boundary conditions based on the value range of each boundary condition, and constructing a detonation velocity correlation model; determining the current processing correlation entity from the detonation velocity correlation model, and obtaining at least one set of correlation parameters from the detonation velocity correlation model according to the combination relationship of the correlation entity; fitting the correlation parameters into a detonation velocity attenuation curve according to the different heating time and detonation velocity with temperature and sensitizer type as conditions, determining the change trend of the detonation velocity attenuation curve based on the value range of the attenuation rate of the detonation velocity attenuation curve; selecting the temperature nodes in the detonation velocity attenuation curve based on the change trend of the detonation velocity attenuation curve, triggering data configuration warning according to the deviation proportion under each temperature node; and realizing the accuracy and efficiency of detonation velocity attenuation prediction.

This invention discloses an explosive processing technology for high-strength and high-toughness metal materials with multi-scale gradient composite structures, relating to the field of high-strength and high-toughness metal material processing. The first step involves preparing a sand base, a substrate, a cover plate, and explosives, and polishing the outer surfaces of the substrate and cover plate. The second step involves placing the substrate on the sand base after polishing, with a support placed on top of the substrate, the cover plate placed on top of the support, and the explosives placed on the cover plate. By adjusting the detonation velocity of the explosives and the spacing between the plates, a composite plate with a good metallurgical interface can still be prepared even when the tensile strength of the substrate is as high as 1.4 GPa and the fracture strain of the cover plate is higher than 25%. Furthermore, by increasing the detonation velocity, the composite plate material undergoes surface hardening, achieving one-time forming of a high-strength multi-scale gradient composite metal plate.

This invention relates to a method for determining and matching the equivalent detonation velocity of electric arc explosion in transformer oil. The method constructs an equivalent detonation velocity calculation model based on the electrical characteristics of the electric arc and corrects for the fluid impact intensity. It defines an electrical frequency domain criterion reflecting the turbulent characteristics of the arc source and establishes a quantitative correlation between this criterion and the effective impact energy of the wall pressure wave, thereby mapping the complex time-varying arc impact process into a single equivalent detonation velocity index. This method integrates electrical quantity monitoring and fluid dynamics analysis, solving the problem of accurately matching the source intensity in chemical reproduction tests, and providing a quantitative reference scheme for the selection of energetic materials in transformer explosion-proof tests.

The utility model discloses a cavity preset type slotting hole charging structure which comprises a slotting shot hole, the slotting shot hole is composed of a main blasting section penetrating through a current circulation drilling footage rock mass and an extension charging section extending into a next circulation drilling footage rock mass, and the extension charging section is composed of a front charging section and a rear charging section; the main explosive section, the front explosive loading section and the rear explosive loading section are filled with explosives respectively, the explosives in all the sections are connected through detonating cords, and the relation between the explosive detonation velocity of the front explosive loading section, the explosive detonation velocity of the main explosive loading section and the explosive detonation velocity of the rear explosive loading section is that the explosive detonation velocity of the front explosive loading section is larger than the explosive detonation velocity of the rear explosive loading section. According to the utility model, the slotting shot hole extends into the rock mass of the next cycle footage, so that the directional cavity free face is formed in the rock mass of the next cycle footage, the slotting process can be omitted in the next cycle, and the blasting operation of the next cycle can be completed only by arranging the auxiliary hole and the peripheral hole; in other words, cutting blasting only needs to be conducted once every two circulating footings, the tunneling construction efficiency can be greatly improved, and the construction cost is reduced.

The invention discloses a drill bit for probe installation for testing explosive detonation velocity and an installation method, and relates to the technical field of industrial explosive detonation velocity testing.The drill bit for probe installation comprises a drill handle, a drill bit body is arranged at the lower end of the drill handle, and a through hole for an enameled wire to penetrate through is formed in the position, close to the upper end, of the drill handle in the radial direction; limiting grooves are formed between the openings in the two ends of the through hole and the upper end of the drill handle in the axial direction, and when the drill handle rotates, the enameled wire is twisted into a fried dough twist shape under the limitation of the limiting grooves. The method has the advantages of being accurate and rapid in testing, simple and easy to implement, and one-time hole penetrating and aligning can be achieved.

The invention discloses a device and a method for measuring the continuous instantaneous detonation velocity of an explosive. The device comprises the explosive, a trigger probe, a trigger circuit, a test probe, a test circuit and an operation module, wherein the trigger probe and the test probe are arranged in the center of the explosive along the axial direction of the explosive; the trigger probe is connected with the trigger circuit, and the trigger probe is used for conducting the trigger circuit when an explosive detonation wave arrives so as to trigger the test circuit to start to record a voltage signal of the fixed value resistor through the trigger circuit; the test circuit is a series resistor voltage division circuit, and a second channel of the oscilloscope is used for collecting a change curve of the voltage value of the fixed-value resistor along with time in real time in the process of destroying the test probe by detonation waves; and the operation module is used for calculating the continuous instantaneous detonation velocity of the detonation wave at different times according to the change curve. According to the device, continuous high-precision measurement of the instantaneous detonation velocity of the explosive can be realized, and the continuous change of the detonation velocity along the axial direction of the explosive can be accurately captured with lower cost.

The invention relates to the technical field of computer aided design and energetic materials, and discloses an explosive formula optimization design method based on unified balance. The method comprises the following steps: constructing a unified performance balance space fusing multi-source physical and chemical prior and historical data; mapping the formula components and the ratio into a structure diagram for expression; synchronously predicting multi-dimensional performance such as detonation velocity, detonation pressure, sensitivity and thermal stability by using a graph neural network embedded with physical constraints; and in combination with a non-dominated sorting multi-target genetic algorithm, efficiently searching a Pareto optimal formula set meeting a preset threshold in a balanced space. The system is deployed on a special computing platform and supports incremental learning and safe output. Through the model driving normal form, the prediction precision and the optimization efficiency are remarkably improved, the experiment dependence is reduced, and collaborative optimization of safety and efficiency is realized.

The invention belongs to the technical field of ammonium nitrate fuel oil explosives, and particularly relates to an ammonium nitrate fuel oil explosive and a preparation method thereof. The ammonium nitrate fuel oil explosive comprises an oil-phase-like material, granular ammonium nitrate and a density adjusting material, wherein the density adjusting material is polymer foam; in terms of the ammonium nitrate fuel oil explosive, the content of the oil-phase-like material is 5-30 wt%, the content of the granular ammonium nitrate is 55-90 wt%, and the content of the density adjusting material is 2-15 wt%; the density of the ammonium nitrate fuel oil explosive is 0.30-0.75 g / cm < 3 >; through the synergistic effect of the oil-phase-like material, the granular ammonium nitrate and the density adjusting material in specific dosage, the explosive has proper density and detonation velocity, and the low explosive return rate and the long storage period can be guaranteed.

The invention discloses a high-viscosity mixed emulsion explosive and a preparation method thereof, and relates to the technical field of emulsion explosives, the emulsion explosive comprises the following raw materials by weight: 40-60 parts of ammonium nitrate, 2-4 parts of diesel oil, 1-3 parts of engine oil, 0.5-1.5 parts of a first emulsifier, 0.1-1 part of a viscosity agent, 0.1-0.5 part of a sensitizer, and 14-20 parts of water; the adhesive is composed of sodium carboxymethyl cellulose and a polyacrylamide adhesive; the preparation method of the emulsion explosive comprises the following steps: uniformly mixing ammonium nitrate and water to obtain a first water phase; uniformly mixing diesel oil, engine oil and a first emulsifier to obtain a first oil phase; mixing and emulsifying the first water phase, the first oil phase and a viscous agent to obtain an emulsion matrix; and statically mixing the emulsion matrix and a sensitizer, and feeding the mixture into a blast hole for sensitizing to obtain the high-viscosity mixed emulsion explosive. The viscosity of the emulsion explosive is improved under the condition that the detonation velocity is not influenced, and the explosive return rate of upward hole charging is effectively reduced.

The invention belongs to the technical field of detonation velocity testing, and discloses a device for testing detonation velocity in a blast hole, which comprises an anti-explosion tail shell and an anti-impact head shell coaxially and fixedly connected to the top end of the anti-explosion tail shell, the top end of the anti-impact head shell is provided with a detection assembly used for detecting the detonation velocity through wireless signals. And a self-centering assembly is arranged in the explosion-proof tail shell. Axial linear motion is converted into radial synchronous expansion motion of the supporting plate, constant tensioning force is provided in cooperation with a reset spring, the device can automatically adapt to diameter changes and unevenness of the inner wall of a blast hole through the structure, the device body is forcibly locked at the geometric center position of the blast hole, and the device is more stable and reliable. Operation errors caused by traditional manual installation are eliminated, more importantly, it is ensured that the radar wave beam direction in the detection assembly is always kept parallel to the axis of the blast hole, therefore, angle errors caused by inclination of a probe are effectively avoided, and high precision and high consistency of detonation velocity test data are ensured.

The invention discloses a high-energy super-heat-resistant explosive and a synthesis method thereof. The high-energy super-heat-resistant explosive is characterized in that the high-energy super-heat-resistant explosive is N2-(5-amino-4-nitro-1H-pyrazole-3-yl)-N6-(3-amino-4-nitro-1H-pyrazole-5-yl)-3, 5-dinitropyridine-2, 4, 6-triamine, and 2, 6-dichloro-3, 5-dinitropyridine-4-amine and 4-nitro-1H-pyrazole-3, 5-diamine are subjected to a substitution reaction, so that the high-energy super-heat-resistant explosive is obtained. The UH-1 shows the highest detonation velocity which can reach 8889 m s <-1 > as the super-heat-resistant explosive, meanwhile, the comprehensive performance of the UH-1 is superior to that of a classic super-heat-resistant explosive TATB, and the UH-1 has the application potential of replacing heat-resistant explosives TATB and HNS.