Method and device for simulating high-altitude environment to detect detonation velocity of emulsion explosive
By designing an emulsified explosive speed detection device, using detection tubes and checking valves to simulate high-altitude and low-pressure environments, the problem of difficult detection in the existing technology is solved, and efficient and accurate explosive speed detection is achieved, supporting the application of explosives in high-altitude areas.
Patent Information
- Application Number
- CN202411891873.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-03-07
AI Technical Summary
The existing method of explosion-speed detection of emulsified explosives is difficult to simulate high-altitude and low-pressure environments, and cannot provide reliable explosion-speed detection data, limiting the application of explosives in high-altitude areas.
An emulsified explosive explosion speed detection device is designed, including a detection tube, threading hole, plugging cover and a check valve. The air pressure in the detection tube is controlled through the air extraction equipment, simulates a high-altitude and low-pressure environment, and ensures the accurate installation and detonation of the detonator through the detonator jacking tube.
The device can effectively simulate high-altitude and low-pressure environments, improve the accuracy and reliability of explosion speed detection, and provide reliable data to support the application of emulsified explosives in high-altitude areas.
Smart Images
Figure CN119573481A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of performance detection of civilian explosives, and in particular to a method and a device for detecting the detonation velocity of emulsion explosives in a simulated high-altitude environment. Background Art
[0002] In modern industry, emulsion explosives are widely used in blasting projects. Their performance is related to operational safety, efficiency and cost. Accurate and efficient performance testing is extremely critical in the production process. Detonation velocity refers to the propagation speed of the detonation wave (shock wave accompanied by chemical reaction) in the explosive, which is the core performance indicator of the explosive. The traditional method for testing the detonation velocity of emulsion explosives is to first determine the position of the two signal lines to be inserted and the distance between them on the emulsion explosive according to the test requirements. Usually, a ruler is used to measure the position and spacing of the signal lines to be inserted, and then a steel needle with a signal line is used to insert it from the corresponding measured position along the diameter direction of the roll into the roll. After the steel needle is removed, the signal line is wound and fixed on the roll to perform the detonation velocity test; however, when batch sampling is used for detonation velocity testing, the number of tests is large. When determining the position and distance of the signal line insertion, each tested roll needs to be measured by a ruler, resulting in a cumbersome detection process and low test efficiency. In addition, there is an error in the distance of the signal line measured each time, which affects the accuracy of the detonation velocity test.
[0003] Moreover, with the diversification of blasting scenarios, the number of projects in high-altitude areas has increased. However, changes in air pressure and temperature will cause changes in the density of emulsion explosives, thereby affecting the initiation sensitivity and detonation transmission sensitivity of explosives. Therefore, the detonation velocity values of explosives in different air pressure and temperature environments are different. Simulating the detonation velocity test in high-altitude environment is of great significance for enhancing the application of emulsion explosives in high-altitude areas. However, most of the existing detonation velocity detection methods are difficult to effectively simulate the low-pressure conditions of high-altitude environments. The existing vacuum explosion equipment is unable to detect detonation velocity and cannot provide reliable detonation velocity detection data for the application of emulsion explosives in high-altitude areas, which limits its application and promotion in special environment blasting projects. Summary of the invention
[0004] In view of this, the present invention provides an emulsion explosive detonation velocity detection device and a method for detecting the detonation velocity of emulsion explosives by simulating a high-altitude environment using the device, aiming to solve the problem that the current emulsion explosive detonation velocity detection is difficult to simulate a high-altitude low-pressure environment, resulting in an inability to provide reliable detonation velocity detection data for projects in high-altitude areas.
[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows.
[0006] In a first aspect, the present invention provides an emulsion explosive detonation velocity detection device, comprising a detection tube for placing a to-be-detected emulsion explosive roll, wherein four threading holes are arranged on the tube wall of the detection tube, wherein the connecting line between the first threading hole and the second threading hole and the connecting line between the third threading hole and the fourth threading hole are both the tube diameter line of the detection tube, and the distance between the first threading hole and the third threading hole is the distance between two signal lines for detonation velocity detection;
[0007] An opening and a plugging cover are provided at one end of the detection tube, the plugging cover is detachably arranged in the opening, and a one-way valve is installed on the plugging cover;
[0008] The other end of the detection tube is provided with a detonator plug-in tube extending into the interior of the detection tube, and the detonator plug-in tube coincides with the center of the detection tube.
[0009] Preferably, the end of the detonator socket tube is provided with a piercing portion, which can make it more convenient to insert the detonator socket tube into the emulsion explosive volume to be tested.
[0010] Preferably, a sealing ring is provided on the inner wall of the opening. Preferably, a sealing ring is provided on the plug cover. The provision of the sealing ring and the sealing ring can enhance the sealing inside the detection tube and improve the accuracy of the pressure value inside the detection tube.
[0011] Preferably, the outer surface of the blocking cover is provided with anti-skid patterns to increase friction and prevent skidding, thereby facilitating the operation of operators.
[0012] Preferably, the diameter of the detection tube is equal to the diameter of the emulsion explosive cartridge to be detected, which can enhance the accuracy of the position of the detonator plug-in tube inserted into the emulsion explosive cartridge, thereby further improving the reliability of the detection data.
[0013] Preferably, the emulsion explosive low-pressure detonation velocity detection device is made of PVC material, which has the advantages of being low-priced and easy to manufacture.
[0014] In a second aspect, the present invention provides a method for detecting the detonation velocity of emulsion explosives in a simulated high altitude environment, which uses the above-mentioned emulsion explosive detonation velocity detection device to detect the detonation velocity of emulsion explosives, and specifically comprises the following steps:
[0015] Step 1, open the plugging cover, put the emulsion explosive to be tested into the detection tube from the opening, and insert the detonator socket tube at the end of the detection tube into the emulsion explosive to be tested;
[0016] Step 2, passing the detection detonation velocity wire through the threading hole into the emulsion explosive volume to be detected, and the detonation velocity wire extends out of the threading hole to block the threading hole;
[0017] Step 3: The plugging cover closes the opening, and the one-way valve on the plugging cover is connected to the air extraction device. After the air extraction device extracts the pressure in the detection tube to a predetermined value, the one-way valve is disconnected from the air extraction device;
[0018] Step 4: Connect the detonation velocity line to the detonation velocity tester, insert the detonator into the detonator socket tube, detonate the detonator, and the detonation velocity tester can measure the detonation velocity data of the emulsion explosive to be tested.
[0019] Furthermore, step 4 also includes a process of placing the detection tube into ice water at a preset temperature and then detonating the detonator to perform an explosion velocity test. This process can simulate the detection of explosion velocity in a low temperature and low pressure environment.
[0020] Compared with the related art, the present invention has the following beneficial effects:
[0021] The detonation velocity detection device provided by the present invention has a detection tube that provides a stable space for the explosive to be detected, and the threading hole arranged on the detection tube facilitates the installation of the detonation velocity line, thereby avoiding the problems of errors in manually measuring the distance of the signal line and cumbersome measurement work; the opening at one end of the detection tube is convenient for the loading of the drug roll, and the plugging cover seals the opening by plugging and disassembling to prevent the outside air from entering, thereby ensuring the stability of the internal air pressure environment of the detection tube, which is beneficial to the subsequent air pressure control and the accuracy of the detonation velocity detection, and the two work together to ensure the smooth completion of the first step of the detection process of loading explosives and the stability of the subsequent detection environment; the one-way valve arranged on the plugging cover can be connected to the exhaust equipment to exhaust the air in and out of the detection tube, and accurately control the detection The air pressure in the tube can effectively simulate the low pressure environment in high altitude areas, and solve the pressure control and simulation problems of explosion velocity detection in the prior art; the detonator socket tube arranged at the other end of the detection tube provides an accurate installation position for the detonator, ensuring that the relative position of the detonator and the emulsion explosive is appropriate, and the emulsion explosive can be accurately detonated, ensuring that the explosion velocity detection is carried out normally to obtain accurate explosion velocity data; at the same time, the detonator socket tube can seal the detection tube after the medicine roll is loaded into the detection tube, thereby ensuring that the air pressure environment inside the detection tube is stable, so that the air pressure in the detection tube can be effectively adjusted; at the same time, the explosion velocity detection device provided by the present invention is a sealed PVC tube, which can be put into ice water to simulate a low temperature environment.
[0022] In summary, the detonation velocity detection device provided by the present invention can simulate the detection of detonation velocity under low pressure and / or low temperature conditions, and its structure is simple and easy to manufacture and use. The method of using the device to simulate the high-altitude environment to detect the detonation velocity of emulsion explosives is simple to operate. The device and method provided by the present invention provide reliable detonation velocity detection data for the application of emulsion explosives in high-altitude areas, create favorable conditions for the application and promotion of emulsion explosives in special environment blasting projects, and ensure the safety, stability, accuracy of the detection process as well as the economy and durability of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1A schematic diagram of the structure of a low-pressure detonation velocity detection device for emulsion explosives provided in an embodiment of the present invention;
[0024] Figure 2 A schematic diagram of the use of a low-pressure detonation velocity detection device for emulsion explosives provided in an embodiment of the present invention.
[0025] Figure numerals: 1, detection tube; 21, first threading hole; 22, second threading hole; 23, third threading hole; 24, fourth threading hole; 3, opening; 31, sealing ring; 4, plugging cover; 41, sealing ring; 42, one-way valve; 5, detonator plug tube; 51, penetration part; 6, emulsion explosive roll; 7, detonator; 8, detonation velocity line; 9, sealing rubber. DETAILED DESCRIPTION
[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.
[0027] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0028] See also Figure 1 and Figure 2As shown, an embodiment of the present invention provides an emulsion explosive detonation velocity detection device, which comprises: a detection tube 1, for placing an emulsion explosive roll to be detected; four threading holes are arranged on the tube wall of the detection tube 1 for inserting a detonation velocity line (connected to a detonation velocity detector); the connecting line between the first threading hole 21 and the second threading hole 22 and the connecting line between the third threading hole 23 and the fourth threading hole 24 are both the tube diameter line of the detection tube 1, and the distance between the first threading hole 21 and the third threading hole 23 is the distance between two signal lines for detonation velocity detection; an opening 3, the opening 3 is opened at one end of the detection tube 1, and the emulsion explosive can be inserted through the opening 3. The chemical explosive roll is loaded into the detection tube 1; the plugging cover 4 is arranged in the opening 3, used for sealing the opening 3 and can be disassembled and assembled by plugging and unplugging, a one-way valve 42 is fixedly installed on the plugging cover 3, the one-way valve 42 is used for connecting to a vacuum device to exhaust the air in the detection tube 1, preferably, the one-way valve 42 can select a valve core, and the vacuum device can select a vacuum device; the detonator socket tube 5, the detonator socket tube 5 is opened at the other end of the detection tube 1 and extends into the interior of the detection tube 1, the detonator socket tube 5 coincides with the center of the detection tube 1, and the detonator socket tube 5 is used for inserting a detonator 9 for detonating emulsion explosive.
[0029] It should be noted that the detection principle of the detonation velocity detector is as follows: according to the requirements of the national standard GB13228, an insulating enameled round copper wire is used to make a target wire as a signal acquisition sensor, and the signal acquisition is collected by the disconnection mode, that is, the sensor has infinite resistance in the normal state, and becomes zero resistance under the action of the detonation wave plasma. The first sensor starts timing when it is thixotropically turned on under the action of the detonation wave, and the timing of the second sensor ends when it is thixotropically turned on. The detonation velocity of the explosive is obtained according to the distance between the two sensors and the timing time. Therefore, in the prior art detonation velocity detection, the operator needs to use a ruler to first determine the positions of the two signal wires that need to be threaded and the distance between them on the emulsion explosive according to the test requirements. The measurement work is cumbersome and the error is large. The present invention has pre-determined the position of the detonation velocity wire threading hole on the detection tube, thereby avoiding the problems of errors in the manual measurement of the signal line distance and cumbersome measurement work.
[0030] In the embodiment of the present invention, the emulsion explosive roll to be tested is placed inside the detection tube 1 through the opening 3. During the process of placing the roll, the detonator socket tube 5 provided at the end of the detection tube 1 is inserted into the emulsion explosive roll 6 to be tested, thereby preventing external air from entering the detection tube 1 through the detonator socket tube 5, thereby achieving the sealing of the detonator socket end of the detection tube. The opening 3 is sealed by the plugging cover 4. The opening 3 is located at one end of the detection tube 1. When loading the emulsion explosive, the emulsion explosive roll 6 is loaded into the detection tube 1 through the opening 3. The existence of the opening 3 enables the emulsion explosive to be smoothly placed in the detection tube 1, provides a convenient channel for loading the roll, and ensures that the detection work can be carried out smoothly; the detonator hole tube 5 is located at the other end of the detection tube 1, provides an accurate installation position for the detonator 7, ensures that the relative position of the detonator 7 and the emulsion explosive roll 6 is appropriate, can accurately detonate the emulsion explosive, ensure that the detonation velocity detection is carried out normally to obtain accurate detonation velocity data, and at the same time, the detonator hole tube 5 can seal the detection tube after the roll is loaded into the detection tube, thereby ensuring that the internal air pressure environment of the detection tube is stable, so that the air pressure in the detection tube can be effectively adjusted; the plugging cover 4 is installed in the opening 3 and is disassembled and assembled by plugging and unplugging; the plugging cover 4 can effectively seal the opening 3, and after the emulsion explosive is loaded, prevent the outside air from entering the detection tube 1 at will, avoiding causing the internal air pressure environment Interference ensures the stability of the internal environment of the detection tube 1, which is beneficial to the subsequent precise control of air pressure and the accuracy of explosion velocity detection; the one-way valve 42 is fixedly installed on the plug cover 4, and the one-way valve 42 is used to extract the air in the detection tube 1 by connecting the exhaust equipment; the one-way valve 42 provides a reliable interface for the extraction of air in the detection tube 1, and the air pressure in the detection tube 1 can be accurately controlled by the exhaust equipment, thereby effectively simulating the low-pressure environment in high-altitude areas, solving the problems of unstable pressure control and inaccurate simulation in the prior art, and providing reliable explosion velocity detection data in a low-pressure environment for the application of emulsion explosives in high-altitude areas; the explosion velocity line 8 is inserted into the emulsion explosive volume 6 in the detection tube 1 through the threading hole, and the explosion velocity detector is connected to detect the explosion velocity data through the explosion velocity line 8. After the threading hole completes the insertion of the explosion velocity line, the threading hole is sealed with a sealing rubber 9 to ensure the air tightness inside the detection tube. The sealing rubber 9 can be selected from a rubber plug, rubber mud, etc. Using the sealing rubber 9 to seal the threading hole can prevent the gas in the detection tube 1 from leaking from the threading hole during the detection process, avoid the pressure change caused by the gas leakage, and thus ensure the stability and accuracy of the low-pressure environment simulated in the detection tube 1. At the same time, the sealing threading hole can also reduce the interference of external factors on the signal transmission during the detonation velocity detection process, ensure that the detonation velocity line can stably transmit the detonation wave of the explosive explosion, so that the detonation velocity detector can accurately obtain the detonation velocity data of the emulsion explosive, and further improve the detection accuracy and reliability of the entire emulsion explosive low-pressure detonation velocity detection device.The setting of the threading hole on the detection tube 1 provides a channel for the arrangement of the detonation velocity line 8, omitting the work of manually measuring the signal line distance, avoiding the problems of errors in manual measurement of the signal line distance, cumbersome measurement work, and improving the detection efficiency.
[0031] The detonation velocity detection device provided by the embodiment of the present invention can be placed in ice water for detection, which can simulate the explosives in a low temperature environment, and can also simulate the explosives in a low pressure environment. Therefore, the device provided by the embodiment of the present invention can conveniently simulate the low temperature environment often associated with high altitude areas, so that the detection environment is more in line with the actual high altitude scene, thereby making the detection data more referenceable and accurate, which is conducive to providing a reliable basis for the application of emulsion explosives in high altitude and low temperature environments.
[0032] Based on the above embodiment device, the present invention provides a method for detecting the detonation velocity of emulsion explosives in a simulated high altitude environment, which comprises the following steps:
[0033] Step 1, open the plug cover 4, put the emulsion explosive roll 6 to be tested into the detection tube 1 from the opening 3, and insert the detonator plug tube 5 at the end of the detection tube 1 into the emulsion explosive roll 6 to be tested during the process of putting the emulsion explosive roll 6 into the detection tube 1;
[0034] Step 2, insert the detection detonation velocity wire 8 into the emulsion explosive volume to be detected from the threading hole, and at the same time, the detonation velocity wire 8 extends out of the threading hole, and the threading hole is sealed with a sealing rubber 9;
[0035] Step 3, insert the plugging cover 4 into the opening 3 to close the opening 3, connect the one-way valve 42 on the plugging cover to the air extraction device, and after the air extraction device extracts the pressure in the detection tube to a predetermined value, the one-way valve is disconnected from the air extraction device;
[0036] Step 4: The detonation velocity line 8 is connected to the detonation velocity tester, the detonator 7 is inserted into the detonator socket tube 5, and the detonator 7 is detonated. The detonation velocity tester can measure the detonation velocity data of the emulsion explosive to be tested.
[0037] Furthermore, step 4 also includes a process of placing the detection tube 1 in ice water at a preset temperature and then detonating the detonator 7 to perform an explosion velocity test. This process can simulate the detection of explosion velocity in a low temperature and low pressure environment.
[0038] In a further preferred embodiment of the present invention, a piercing portion 51 is provided at the end of the detonator socket tube 5. The piercing portion 51 can more conveniently insert the detonator socket tube 5 into the emulsion explosive volume 6 to be tested.
[0039] In a further preferred embodiment of the present invention, a sealing ring 31 can be provided on the inner wall of the opening 3, and a sealing ring 41 can be provided on the plugging cover 4. The sealing ring 31 and the sealing ring 41 are preferably made of rubber material, and their use further improves the sealing performance of the plugging cover 4 when installed at the opening 3 of the detection tube.
[0040] In a further preferred embodiment of the present invention, the low-pressure detonation velocity detection device for emulsion explosives is made of PVC material. PVC material has the advantages of low price and easy production, and the PVC material itself also has certain sealing performance. In this embodiment, since the plugging cover 4 and the detection tube 1 are both made of PVC material, they have good compatibility in terms of physical and chemical properties. For example, under different temperature environments, the thermal expansion coefficients of the two are similar, which avoids the problems of gaps or too tight to be disassembled at the connection between the plugging cover 4 and the detection tube 1 due to temperature changes, and ensures that the installation stability and sealing of the plugging cover 4 at the opening 3 of the detection tube can be maintained under various environmental conditions, which is conducive to the normal use of the entire detection device. In actual operation, the plugging cover 4 is used to seal the opening 3 of the detection tube. When the air in the detection tube 1 is pumped out through the one-way valve 42 to simulate a low-pressure environment, a good seal is essential. The plugging cover 3 made of PVC material has its own material sealing. With the help of the sealing ring 41, it can more effectively prevent the air in the detection tube 1 from leaking out from the opening 3, thereby accurately controlling the air pressure in the detection tube, making the simulated low-pressure environment more stable and accurate, and providing reliable air pressure conditions for accurately detecting the detonation velocity of emulsion explosives in a low-pressure environment; the sealing ring 41 cooperates with the plugging cover 4 made of PVC material, and the sealing ring 31 set at the opening 3, in addition to ensuring the stability of the air pressure in the detection tube, it can also effectively prevent the outside air, water vapor and other impurities from entering the detection tube 1. During the detonation velocity detection process, the entry of external impurities may affect the performance of the emulsion explosive, thereby interfering with the accuracy of the detonation velocity detection data. Through this sealing measure, the environment in the detection tube 1 can be ensured to be pure, ensuring that the emulsion explosive can be tested for detonation velocity as expected in a simulated low-pressure environment, and obtaining reliable and accurate detection data.
[0041] In a further preferred embodiment of the present invention, a joint is provided at the connection end of the one-way valve 42 and the air extraction device, and the joint is connected to the air pipe of the air extraction device by a threaded connection. In this embodiment, the one-way valve 42 is a key component for connecting the air extraction device to realize the extraction and exhaust of the air in the detection tube 1. By providing a joint and adopting a threaded connection, a very stable connection effect can be provided. During the air extraction process, since the air extraction device will generate a certain suction force, the threaded connection can ensure that the joint and the air pipe of the air extraction device are tightly combined, and will not become loose or disconnected due to suction or other external factors (such as slight vibrations, etc.), thereby ensuring that the entire air extraction process can be carried out continuously and stably, laying the foundation for accurately simulating high-altitude and low-pressure environments.
[0042] In a further preferred embodiment of the present invention, the outer surface of the plugging cover 4 is provided with anti-skid patterns to increase friction and prevent slipping. In this embodiment, the anti-skid patterns are provided on the outer surface of the plugging cover 4 for easy operation. When the operator needs to plug or unplug the plugging cover 4, such as installing the plugging cover 4 on the opening 3 of the detection tube 1 or pulling it out from the opening 3, the hand directly contacts the outer surface of the plugging cover 4 and achieves a better grip through the anti-skid patterns.
[0043] In summary, the detonation velocity detection device provided by the present invention can simulate the detection of detonation velocity under low pressure and / or low temperature conditions, and its structure is simple and convenient to manufacture and use. The method of using the device to simulate the high altitude environment to detect the detonation velocity of emulsion explosives is simple to operate. The device and method provided by the present invention provide reliable detonation velocity detection data for the application of emulsion explosives in high altitude areas, create favorable conditions for the application and promotion of emulsion explosives in special environment blasting projects, and ensure the safety, stability, accuracy of the detection process as well as the economy and durability of the device.
[0044] It is worth noting that the circuits, electronic components and modules involved in the present invention are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.
[0045] In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways.
[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.
Claims
1. An emulsion explosive detonation velocity detection device, characterized in that: The invention comprises a detection tube for placing an emulsion explosive roll to be detected, wherein four threading holes are arranged on the tube wall of the detection tube, the connecting line between the first threading hole and the second threading hole and the connecting line between the third threading hole and the fourth threading hole are both the tube diameter line of the detection tube, and the distance between the first threading hole and the third threading hole is the distance between two signal lines for detonation velocity detection; An opening and a plugging cover are provided at one end of the detection tube, the plugging cover is detachably arranged in the opening, and a one-way valve is installed on the plugging cover; The other end of the detection tube is provided with a detonator plug-in tube extending into the interior of the detection tube, and the detonator plug-in tube coincides with the center of the detection tube.
2. The detonation velocity detection device for emulsion explosives according to claim 1, characterized in that: The end of the detonator socket tube is provided with a piercing portion.
3. The detonation velocity detection device for emulsion explosives according to claim 1, characterized in that: A sealing ring is arranged on the inner wall of the opening.
4. The emulsion explosion velocity detection device according to claim 1, characterized in that: A sealing ring is arranged on the blocking cover.
5. The detonation velocity detection device for emulsion explosives according to claim 1, characterized in that: The outer surface of the blocking cover is provided with anti-slip grooves.
6. The detonation velocity detection device for emulsion explosives according to claim 1, characterized in that: The diameter of the detection tube is equal to the diameter of the emulsion explosive roll to be detected.
7. The detonation velocity detection device for emulsion explosives according to claim 1, characterized in that: The emulsion explosive low-pressure detonation velocity detection device is made of PVC material.
8. A method for detecting the detonation velocity of emulsion explosives by simulating a high altitude environment, characterized in that: The emulsion explosive detonation velocity detection device according to any one of claims 1 to 7 is used to detect the emulsion explosive detonation velocity, and the method for detecting the emulsion explosive detonation velocity in a simulated high altitude environment comprises the following steps: Step 1, open the plugging cover, put the emulsion explosive to be tested into the detection tube from the opening, and insert the detonator socket tube at the end of the detection tube into the emulsion explosive to be tested; Step 2, passing the detection detonation velocity wire through the threading hole into the emulsion explosive volume to be detected, and the detonation velocity wire extends out of the threading hole to block the threading hole; Step 3: The plugging cover closes the opening, and the one-way valve on the plugging cover is connected to the air extraction device. After the air extraction device extracts the pressure in the detection tube to a predetermined value, the one-way valve is disconnected from the air extraction device; Step 4: Connect the detonation velocity line to the detonation velocity tester, insert the detonator into the detonator socket tube, detonate the detonator, and the detonation velocity tester can measure the detonation velocity data of the emulsion explosive to be tested.
9. The method for detecting the detonation velocity of emulsion explosives in a simulated high altitude environment according to claim 8, characterized in that: The step 4 also includes the process of placing the detection tube into ice water at a preset temperature and then detonating the detonator to perform a detonation velocity test.