An apparatus for performance testing of emulsion explosives under special conditions
By designing a device consisting of a vacuum system, a mold temperature controller, and a vibration test bench, the problem of stability assessment of emulsion explosives under different environmental conditions was solved, enabling comprehensive testing of the performance of emulsion explosives and assessment of their storage stability.
Patent Information
- Application Number
- CN202521376269.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-02
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-07-02
AI Technical Summary
Existing technologies struggle to effectively assess the stability of emulsion explosives under varying pressures, temperatures, and vibrations, particularly the stability of emulsion explosives produced in low-altitude regions when used and transported in high-altitude areas.
A device comprising a vacuum system, a mold temperature controller, and an experimental chamber was designed. The vacuum system controls the pressure, the mold temperature controller regulates the temperature, and the vibration test bench simulates vibration, which is used to test the performance of emulsion explosives under different conditions.
It enables comprehensive testing of the performance of emulsion explosives under different pressure, temperature and vibration conditions, evaluates their storage stability, and is suitable for formulation design in different altitude regions.
Smart Images
Figure CN224946013U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a device, and more particularly to a device for performance testing of emulsion explosives under special conditions. Background Technology
[0002] Emulsion explosives are water-in-oil type water-resistant industrial explosives prepared using emulsion technology. The storage stability and use of emulsion explosives are affected by changes in air pressure, temperature, and transportation vibrations. In particular, addressing the challenges of using and transporting emulsion explosives produced in low-altitude areas at high altitudes requires research into the influence of air pressure changes, extreme weather conditions, and transportation vibrations on the stability of emulsion explosives. This necessitates establishing reliable testing methods to simulate environmental and transportation conditions in high-altitude areas and evaluating the stability of emulsion explosives. This will provide a testing basis for designing emulsion explosive formulations suitable for different altitudes. Utility Model Content
[0003] Purpose of the utility model: This utility model aims to provide a device for testing the performance changes of emulsion explosives under different temperature, pressure, vibration and other conditions.
[0004] Technical solution: The device for performance testing of emulsion explosives under special environments according to this utility model includes a vacuum system, a mold temperature controller and an experimental chamber. The vacuum system and the mold temperature controller are respectively connected to the experimental chamber through pipelines. The experimental chamber is equipped with a vibration test bench, a vacuum gauge, an air vent valve and a jacket.
[0005] A vacuum system is used to control the pressure in the experimental chamber, a mold temperature controller is used to control the temperature in the experimental chamber, and a vibration test bench is used to simulate the vibration of emulsion explosives during transportation. The emulsion explosive cartridges are placed in the vibration test bench within the low-pressure experimental chamber, and their performance is tested under different vacuum levels, temperatures, frequencies, and amplitudes.
[0006] Preferably, the experimental chamber is made of 304 stainless steel.
[0007] Preferably, the vibration test bench is located at the bottom of the test chamber.
[0008] Preferably, the vacuum gauge is located at the top of the experimental chamber.
[0009] Preferably, the vent valve is located at the top of the experimental chamber.
[0010] Preferably, the pipeline of the vacuum pump is connected to the top of the experimental chamber.
[0011] Preferably, the mold temperature controller has two pipelines, which are respectively connected to the working medium inlet and outlet of the jacket.
[0012] Preferably, the experimental chamber has dimensions of Ø (500~1000) × (600~1200) mm.
[0013] Preferably, the temperature of the mold temperature controller is -50 to 250°C.
[0014] Preferably, the frequency of the vibration test bench is 0.1~5 Hz.
[0015] Preferably, the amplitude of the vibration test bench is 20~30 mm.
[0016] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: The device can simultaneously test the change law of emulsion explosive performance under different air pressure, temperature, vibration and other conditions, and can also conduct high and low temperature cycle experiments on emulsion explosives to test the storage stability of emulsion explosives. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation
[0018] The technical solution of this utility model will be further described below with reference to the embodiments.
[0019] like Figure 1 As shown, the device for performance testing of emulsion explosives under special environments according to this utility model consists of a vacuum pump 1, a mold temperature controller 2, and an experimental chamber 3. The experimental chamber 3 has a vibration test bench 31, a vacuum gauge 32, a vent valve 33, and a jacket 34. The vibration test bench 31 is located at the bottom of the experimental chamber 3. The vacuum gauge 32 and the vent valve 33 are located at the top of the experimental chamber 3. The vacuum pump 1 is connected to the top of the experimental chamber 3 through a pipeline. The mold temperature controller 2 is connected to the working medium inlet 35 and outlet 36 of the jacket 34 through two pipelines, respectively. The experimental chamber 3 is made of 304 stainless steel and has a size of Ø1000×1200 mm.
[0020] Example 1
[0021] The above apparatus was used to test the performance of emulsion explosives under different temperature, pressure, and vibration conditions. The tests are as follows:
[0022] (1) Place 5 kg of emulsion explosive cartridges on the vibration test table 31 inside the experimental chamber 3, start the vacuum pump 1, and after the vacuum degree of the experimental chamber 3 reaches 0.042 MPa, maintain the pressure for 24 h and then test the performance of the emulsion explosive.
[0023] The initial performance of the emulsion explosive is as follows: Explosive cartridge density: 1.11 g / cm³ 3 The detonation velocity was 4644 m / s (average), the detonation distance was 6 cm, and the saturation was 16.88 mm.
[0024] After 24 hours, the properties are as follows: Drug roll density: 1.13 g / cm³3 The detonation velocity was 4608 m / s (average), the detonation distance was 5 cm, and the saturation was 15.63 mm.
[0025] (2) Place 5 kg of emulsion explosive cartridges on the vibration test table 31 inside the experimental chamber 3, start the mold temperature controller 2, and after the temperature of the experimental chamber 3 reaches -30℃, test the performance of the emulsion explosive cartridges after 24 h.
[0026] After 24 hours, the properties are as follows: Drug roll density: 1.15 g / cm³ 3 The detonation velocity was 4447 m / s (average), the detonation distance was 5 cm, and the saturation was 15.28 mm.
[0027] (3) Place 5 kg of emulsion explosive cartridges on the vibration test bench 31 inside the experimental chamber 3, start the vacuum pump 1 and the mold temperature controller 2. When the vacuum degree of the experimental chamber 3 reaches 0.045 MPa and the temperature reaches -30℃, test the performance of the emulsion explosive after placing the emulsion explosive cartridges for 24 h.
[0028] After 24 hours, the properties are as follows: Drug roll density: 1.17 g / cm³ 3 The detonation velocity was 4341 m / s (average), the detonation distance was 5 cm, and the saturation was 15.16 mm.
[0029] (4) Place 5 kg of emulsion explosive cartridges on the vibration test bench 31 inside the experimental chamber 3, start the vacuum pump 1, the mold temperature controller 2 and the vibration test bench 31. When the vacuum degree of the experimental chamber 3 reaches 0.045 MPa and the temperature reaches -30℃, the frequency of the vibration test bench 31 is 5 Hz and the amplitude is 25 mm. After the emulsion explosive cartridges are placed for 24 h, test the performance of the emulsion explosive.
[0030] After 24 hours, the properties are as follows: Drug roll density: 1.19 g / cm³ 3 The detonation velocity was 4255 m / s (average), the detonation distance was 3 cm, and the saturation was 14.72 mm.
[0031] (5) Place 5 kg of emulsion explosive cartridges on the vibration test bench 31 inside the experimental chamber 3, start the vacuum pump 1, the mold temperature controller 2 and the vibration test bench 31. When the vacuum degree of the experimental chamber 3 reaches 0.045 MPa and the temperature reaches -30℃, the frequency of the vibration test bench is 5 Hz and the amplitude is 30 mm. After the emulsion explosive cartridges are placed for 24 h, test the performance of the emulsion explosive.
[0032] After 24 hours, the properties are as follows: Drug roll density: 1.21 g / cm³ 3 The detonation velocity was 4136 m / s (average), the detonation distance was 3 cm, and the saturation was 13.64 mm.
[0033] Example 2
[0034] The device of this invention for testing the performance of emulsion explosives under special environments can be used to conduct high and low temperature cycling experiments on emulsion explosives and determine their storage stability.
[0035] Five kg of emulsion explosive cartridges were placed in experimental chamber 3. The temperature of the mold temperature controller 2 was first set to -30℃ and held for 8 hours. Then, the temperature was set to 50℃ and held for 4 hours. After six rounds of high and low temperature cycle experiments, the emulsion explosive cartridges were left to stand for 24 hours before the performance of the emulsion explosive was tested.
[0036] After 24 hours, the properties are as follows: Drug roll density: 1.15 g / cm³ 3 The detonation velocity was 4292 m / s (average), the detonation distance was 5 cm, and the saturation was 14.64 mm.
Claims
1. An apparatus for performance testing of emulsion explosives under special conditions, characterized in that, It includes a vacuum pump (1), a mold temperature controller (2) and an experimental chamber (3). The vacuum pump (1) and the mold temperature controller (2) are connected to the experimental chamber (3) through pipelines. The experimental chamber (3) has a vibration test bench (31), a vacuum gauge (32), an air vent valve (33) and a jacket (34).
2. The apparatus for performance testing of emulsion explosives under special environments according to claim 1, characterized in that, The vibration test bench (31) is located at the bottom of the test chamber (3).
3. The apparatus for performance testing of emulsion explosives under special environments according to claim 1, characterized in that, The vacuum gauge (32) is located on top of the experimental chamber (3).
4. The apparatus for performance testing of emulsion explosives under special environments according to claim 1, characterized in that, The vent valve (33) is located at the top of the experimental chamber (3).
5. The apparatus for performance testing of emulsion explosives under special environments according to claim 1, characterized in that, The pipeline of the vacuum pump (1) is connected to the top of the experimental chamber (3).
6. The apparatus for performance testing of emulsion explosives under special environments according to claim 1, characterized in that, The mold temperature controller (2) has two pipelines connected to the working medium inlet (35) and outlet (36) of the jacket (34) respectively.
7. The apparatus for performance testing of emulsion explosives under special environments according to claim 1, characterized in that, The experimental chamber (3) has a size of Ø (500~1000) × (600~1200) mm.