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Carbon dioxide deflagration pulse type pressurizing rock breaking device and process method

A rock-breaking device and carbon dioxide technology, applied in the direction of earthwork drilling, discharge machinery, etc., can solve the problems of safety and impact disturbance, and achieve the effects of high safety, less frequent replacement and easy operation

Active Publication Date: 2020-01-31
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, whether it is controlled blasting technology or high-energy gas fracturing technology, Class I and Class II civilian explosives are currently used to varying degrees (the exothermic drug used in the current carbon dioxide phase change expansion fracturing technology belongs to Class II civil explosives), Did not fundamentally solve the problem of safety and impact disturbance

Method used

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  • Carbon dioxide deflagration pulse type pressurizing rock breaking device and process method
  • Carbon dioxide deflagration pulse type pressurizing rock breaking device and process method
  • Carbon dioxide deflagration pulse type pressurizing rock breaking device and process method

Examples

Experimental program
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Effect test

Embodiment 1

[0037] Such as figure 1 with figure 2 As shown, a carbon dioxide deflagration pulse pressurized rock breaking device includes a raw material storage bin 1 and a deflagration bin 2 arranged below the raw material storage bin 1; one end of the deflagration bin 2 is open and connected to a pressure-resistant Pipeline 3, the middle part of the deflagration chamber 2 is provided with an exhaust pipeline 4 and is connected to an exhaust device 5; the exhaust device 5 is connected to a high-pressure pump 7 through a pipeline one 6, and the high-pressure pump 7 is connected through a pipeline two 8 The raw material storage bin 1;

[0038] The bottom surface of the raw material storage bin 1 is tightly welded to the top surface of the deflagration bin 2, and is provided with a feed channel 9 that runs through the walls of the two bins; the raw material storage bin 1 is provided with a storage bin switch valve 10, the The lower end 11 of the switch valve 10 of the storage bin passes ...

Embodiment 2

[0052] Such as image 3 with Figure 4 As shown, a carbon dioxide deflagration pulse pressurized rock breaking device includes a raw material storage bin 1 and a deflagration bin 2 arranged below the raw material storage bin 1; one end of the deflagration bin 2 is open and connected to a pressure-resistant Pipeline 3, the middle part of the deflagration chamber 2 is provided with an exhaust pipeline 4 and is connected to an exhaust device 5; the exhaust device 5 is connected to a high-pressure pump 7 through a pipeline one 6, and the high-pressure pump 7 is connected through a pipeline two 8 The raw material storage bin 1; the bottom surface of the raw material storage bin 1 is closely welded to the top surface of the deflagration bin 2, and a feed channel 9 is provided through the walls of the two bins;

[0053] The raw material storage bin 1 is also provided with a raw material grinding device; the raw material grinding device includes a file 16 arranged in the raw material...

Embodiment 3

[0058] A carbon dioxide deflagration pulse pressurized rock breaking process method, comprising the carbon dioxide deflagration pulse pressurized rock breaking device in embodiment 1 or embodiment 2, the process method includes the following steps:

[0059] Step 1: adding deflagration raw materials into the raw material storage bin and grinding them into powder;

[0060] Step 2: Control the motor to rotate the impeller to open the on-off valve of the storage bin, press the powdery deflagration raw material into the deflagration bin; close the on-off valve of the storage bin;

[0061] Step 3: Initiate the deflagration and stamping of the deflagration raw material through the ignition device, and the transient high-pressure gas generated flows into the blasted place through the pressure-resistant pipeline to realize the first fracturing;

[0062] Step 4: Open the exhaust device to discharge the residual gas after deflagration, and the residual gas is passed into the raw material...

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Abstract

The invention discloses a carbon dioxide deflagration pulse type pressurizing rock breaking device and process method. The device comprises a raw material storage bin and a deflagration bin arranged below the raw material storage bin, wherein one end of the deflagration bin is opened and is connected with a pressure-resistant pipeline leading to the blasting position, and an exhaust pipeline is arranged in the middle of the deflagration bin and is connected to an exhaust device; the exhaust device is connected to a high-pressure pump through a pipeline I, and the high-pressure pump is connected with the raw material storage bin through a pipeline II; a storage bin switch valve is arranged in the raw material storage bin, and the lower end part of the storage bin switch valve penetrates through a feeding channel and is located in the deflagration bin; and an impeller is arranged at the position, corresponding to the lower end part, in the deflagration bin, and an ignition device is further arranged in the deflagration bin. According to the device, a transient high-pressure high-temperature gas generated after the expansion phase change of deflagration raw materials impacts the blasting position to achieve fracturing, the safety is high, the operation is easy, and the fracturing effect is good.

Description

technical field [0001] The invention relates to the technical field of blasting devices and methods, in particular to a carbon dioxide deflagration pulse pressurized rock breaking device and a process method. Background technique [0002] Blasting is often required in municipal transportation projects such as mining and stone mining, excavation of foundation pits, construction of tunnels and underground spaces, safe blasting removal of stubborn rocks / solitary rocks, and dredging of pipelines and other blockages. The blasting fracturing method has the characteristics of high efficiency and low cost, and is widely used in rock mass excavation such as mining engineering, underground transportation engineering, and water conservancy and hydropower engineering. However, the strong shock waves generated during the blasting operation will cause disturbance and damage to the nearby rock mass, as well as vibration hazards of the rock mass, which will have a certain impact on the stab...

Claims

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Application Information

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IPC IPC(8): E21C37/12E21C37/14
CPCE21C37/12E21C37/14
Inventor 庞烁钢胡少斌蔡余康颜正勇汤旋邹刘宗
Owner HOHAI UNIV
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