Non-explosive phase change gas blasting method using water as gas source material

Abstract

The invention discloses a non-explosive phase-change gas blasting method using water as a gas source substance, which comprises the following steps: filling an exothermic agent through an exothermic agent container made of a metal material, and inserting an igniter into the exothermic agent container on a construction site; then the assembled heating pipe and the gas source substance water contained in the metal container are respectively contained in a high-pressure-resistant cracking device, then the installed cracking device is installed in a blast hole, finally, a wire connected with an igniter is led out of the blast hole to be connected with a detonating device, and detonating can be achieved after a detonating device is powered on. Water is used as a gas source substance, and no toxic gas harmful to the environment is generated after blasting; when the device is used in tunnel and mine underground roadway tunneling engineering, the next working procedure can be carried out without ventilation after blasting, and the efficiency is doubled; according to the invention, a non-explosive phase change gas blasting technology can be used for segmented networking blasting.

Description

Technical Field

[0001] The present invention relates to the field of blasting technology, and more specifically, to a non-explosive phase-change gas blasting method using water as a gas source material. Background Art

[0002] The "non-explosive phase-change gas blasting" technology refers to the technology in which the exothermic agent burns to generate heat in the fracturing device, and the gas source material absorbs the heat generated by the exothermic agent and changes from liquid or solid to gas, and the volume of the gas source material expands hundreds to thousands of times, generating high-pressure gas to fracture the rock. At present, the gas source material mainly uses liquid or solid carbon dioxide, and water is not used. The exothermic agent in this technology only burns to generate heat, does not produce gas, and does not have the three elements of explosive explosion. The gas source material changes into gas when heated. The key is that the exothermic agent and the gas source material cannot react chemically. This process is a physical change, not a chemical explosion. It will not produce a chemical explosion in public spaces like explosives, and there is no chemical explosion hazard. Chemical explosion refers to an explosion caused by chemical changes. The energy mainly comes from chemical reaction energy. The process and ability of chemical explosion changes depend on the exothermicity, rapidity and generation of gas products of the reaction. None of the three can be missing.

[0003] The liquid oxygen blasting currently on the market is a chemical reaction between liquid oxygen and sugar-containing paper, which produces heat, carbon dioxide gas and water vapor, which violates the administrative regulations that exothermic agents cannot produce gas. It is not just the liquid oxygen that does not chemically react with the paper that changes into gas, thereby achieving the purpose of blasting rocks. Therefore, it is essentially not a "non-explosive phase change gas blasting" technology. The existing "non-explosive phase change gas blasting" technology mainly includes a carbon dioxide blasting / blasting system and a fracturing device that uses the blasting hole as a dry ice container.

[0004] The existing carbon dioxide blasting / bursting system is composed of a steel fracturing device, a heating tube, a filling machine, and liquid carbon dioxide. Specifically, at the construction site, the heating tube is first loaded into the steel fracturing device, and then the liquid carbon dioxide is compressed and rushed into the steel fracturing device by the filling machine. Then, the steel fracturing device filled with liquid carbon dioxide is placed in the rock borehole and detonated by the detonator. At present, the heating tubes used in this gas blasting / bursting system are all containers of heating agents made of non-metallic materials such as paper tubes and PVC tubes. There is no precedent for using metal materials to make containers of heating agents, and this heating tube cannot be used in sections like electric detonators to detonate explosives.

[0005] See also Figure 2As shown, an existing blasting hole is used as a fracturing device for a dry ice container, including a blasting hole A opened on a rock, the blasting hole A is filled with a gas source material dry ice B (sometimes replaced by ammonium bicarbonate), a heating tube C in contact with the dry ice is installed above the gas source material dry ice B in the blasting hole A, anhydrous cannon mud D is installed above the heating tube C in the blasting hole A, and stones, soil, etc. are filled above it, sometimes a sealing device E is also installed at the mouth of the blasting hole, and the heating tube C is also connected to the detonation device G outside the blasting hole through a detonation line F. At present, the heating tubes used in this gas blasting / bursting system are all made of non-metallic materials such as paper tubes and PVC tubes to make containers for heating agents. There is no precedent for using metal materials to make containers for heating agents, and this heating tube cannot be used in sections like electric detonators to detonate explosives.

[0006] The existing civil explosive blasting technology and "non-explosive phase change gas blasting" technology have the following problems: Civilian explosives will produce a large amount of toxic nitrogen oxides after explosion. Toxic nitrogen oxides are smog substances and can damage the nervous system of engineers. According to professional calculations, the smog-like nitrogen oxides produced by civilian explosives explosions in a year reach more than one million tons, which is equivalent to the smog-like substances emitted by more than 100-200 million fuel vehicles in a year, which has a great impact on the environment.

[0007] In tunnel excavation and underground mine tunneling projects, the use of civilian explosives for blasting will produce a large amount of toxic nitrogen oxides. The next process can only be carried out after 4 hours of ventilation to remove the toxic gases. Only one or two blasts can be fired in 24 hours a day, which affects efficiency and causes great harm to the health of engineers.

[0008] The heating tubes of the existing "non-explosive phase-change gas blasting" technology are all made of non-metallic materials to make the heating agent container. After the heating agent is ignited, the heating tube wall is burned when the heating agent is far from being fully burned and the heat is far from being fully released. The heating agent is in direct contact with the gas source material. At this time, when water with high melting potential and high specific heat capacity is encountered as the gas source material, the combustion cannot continue to vaporize the water with a high pressure of hundreds of megapascals. In addition, the installation method of the gas source material of the existing "non-explosive phase-change gas blasting" technology does not propose an auxiliary solution to this problem. Therefore, the existing "non-explosive phase-change gas blasting" technology cannot use more environmentally friendly and safer water as the gas source material; The heating tubes of the existing "non-explosive phase-change gas blasting" technology are all made of non-metallic materials to make the heating agent container. After the heating agent is ignited, the heating tube wall is burned before the heating agent is fully burned and the heat is far from being fully released. The heat is difficult to be released instantly in a very short time. The heating agent is far from being completely burned before it comes into contact with the gas source material. The gasified gas of the gas source material is difficult to instantly reach a pressure of more than hundreds of megapascals that can crack rocks like the gas produced by the explosion of explosives, and it cannot be used in sections like the explosives detonated by electric detonators. This makes it difficult for the existing "non-explosive phase-change gas blasting" device to be widely used in tunnel excavation and underground mine tunnel excavation projects; The heating tubes of the existing "non-explosive phase-change gas blasting" technology cannot be used in sections like explosives detonated by electric detonators, which makes it impossible for the existing "non-explosive phase-change gas blasting" device to be networked and blasted like explosives at the construction site, which greatly hinders the application and promotion of "non-explosive phase-change gas blasting"; The existing "non-explosive phase-change gas blasting" technology mainly uses liquid carbon dioxide and dry ice. Such gas source materials are themselves hazardous chemicals, which have great safety risks and also cause a certain degree of environmental pollution. The existing "non-explosive phase-change gas blasting" technology uses liquid carbon dioxide as the gas source material, which is itself high-pressure, and dry ice is volatile, which requires corresponding measures to be taken during transportation and engineering construction, which greatly affects construction efficiency and also generates a lot of costs; Therefore, there is an urgent need to develop a new "non-explosive phase change gas blasting" technology that can overcome the above defects. Summary of the invention

[0009] The object of the present invention is to provide a non-explosive phase-change gas blasting method using water as a gas source material, so as to overcome the problems existing in the existing civil explosive blasting technology and the "non-explosive phase-change gas blasting" technology mentioned above.

[0010] In order to achieve the above object, the technical solution adopted by the present invention is as follows: a non-explosive phase-change gas blasting method using water as a gas source material, comprising: The heating agent is filled in a heating agent container made of metal material; Use a drill to drill blast holes at the blasting site; Insert the igniter into the heating agent container, and then put the assembled heating tube and the gas source material water in the metal container into the fracturing device (usually a high-pressure resistant steel pipe or blasting hole); The fracturing device is installed into the blasting hole, and finally the wire connected to the igniter is led out of the blasting hole and connected to the detonating device. The detonator can be detonated after being energized.

[0011] Preferably, after the exothermic agent in the heater is ignited, the exothermic agent container of the heater is burned only after it is fully burned, and the burned exothermic agent can come into contact with the gas source material.

[0012] Preferably, the gas source substance water is filled in a container made of metal material. After the exothermic agent in the heating tube is ignited, the exothermic agent container of the heating tube is burned first, and then the metal container containing the gas source substance water is burned. Only then can the burning exothermic agent contact the gas source substance water, which adds a layer of protection for the exothermic agent to contact the gas source substance water after it is fully burned. Of course, if the melting point of the metal material of the exothermic agent container is high enough and the wall thickness is large enough to ensure that the exothermic agent is fully burned, the gas source substance water may not be filled in a container made of metal material.

[0013] Preferably, the above-mentioned metal materials are optimal but not limited to metal materials such as iron, steel, and aluminum.

[0014] Preferably, the blasting method is carried out by means of segmented networking ignition.

[0015] Preferably, the segmented networking ignition method is divided into three approaches. The first approach is to achieve delayed segmented networking blasting by adjusting the wall thickness and material type of the metal material container containing the gas source material water and the metal material container containing the heating agent. Because their material types and wall thicknesses are different, the burning time is also different.

[0016] Preferably, the second approach of the segmented ignition networking method is that the igniter uses a delay charge to achieve delayed segmented networking ignition like a traditional electric detonator.

[0017] Preferably, in the third approach of the segmented ignition networking method, the igniter realizes delayed segmented networking ignition through an electronic control module like an electronic detonator.

[0018] A non-explosive phase-change gas blasting device using water as a gas source material, comprising a heating tube body and an igniter for segmented network ignition, gas source material water, a high-pressure resistant steel pipe or a blasting hole. When leaving the factory, the heating tube body and the igniter for segmented network ignition can be assembled together, but it is unsafe; The heating pipe body comprises a heating agent container, which is a cylindrical metal structure filled with a heating agent; The igniter is inserted into the heating agent container; Preferably, the heating agent container is a closed cylindrical structure, wherein a hollow capillary tube with an open upper end is provided in the middle thereof, and the hollow capillary tube is used for inserting the igniter; The igniter comprises a loading tube filled with ignition agent, one end of which is connected to an ignition head or an electronic control module, and their detonation circuits are lengthened to lead out a phase-change gas blasting device and a blasting hole and are connected to the detonation device.

[0019] Preferably, any one of a delay charge and an electronic control module is arranged in the filling tube, the ignition head is arranged in the delay charge, and the electronic control module itself has an ignition element.

[0020] Compared with the prior art, the advantages of the present invention are: After the explosion of explosives, a large amount of ammonia and toxic nitrogen oxides will be produced. Toxic nitrogen oxides are smog substances and can damage the nervous system of engineers. According to professional calculations, the smog-like nitrogen oxides produced by civilian explosives blasting reach millions of tons a year, which is equivalent to the smog-like substances emitted by more than 100-200 million fuel vehicles a year, which has a great impact on the environment. The present invention uses water as the gas source material, and no toxic and environmentally harmful gases are produced after the blast, which is of great significance to the construction of a beautiful China; In tunnel and underground mine tunnel excavation projects, the use of explosives for blasting will produce ammonia and a large amount of toxic nitrogen oxides. After the blasting, it is necessary to ventilate for 4 hours to remove the toxic gases before the next process can be carried out. Only one or two blasts can be fired in 24 hours a day, which affects efficiency and causes great harm to the health of engineers. The present invention uses water as the gas source material, and no toxic and environmentally unfriendly gases are produced. After the blasting, ventilation is not required to enter the next process, and the excavation progress is nearly doubled, which greatly improves the engineering efficiency and reduces the engineering cost while avoiding harm to the health of engineers, and has huge economic and social benefits; The existing "non-explosive phase-change gas blasting" technology cannot use water as a gas source material. The present invention enables the "non-explosive phase-change gas blasting" technology to use water as a gas source material. The gas produced by gasification of gas source materials in the existing "non-explosive phase-change gas blasting" technology is difficult to reach a pressure of hundreds of megapascals or more that can crack rocks instantly, like the gas produced by explosive explosions, and cannot be used in sections, making it difficult to be widely used in tunnel excavation and underground mine tunnel excavation projects. The present invention solves this problem and can make the "non-explosive phase-change gas blasting" technology a reality for large-scale application in tunnel excavation and underground mine tunnel excavation projects; The existing "non-explosive phase-change gas blasting" technology cannot be networked for blasting at the construction site like the explosive technology, which greatly hinders the application and promotion of the "non-explosive phase-change gas blasting" technology. The present invention solves this problem; In the existing fracturing device using a blast hole as a dry ice container, when the "non-explosive phase change gas blasting" project is carried out, the exothermic agent is still burning in large quantities when the rock has been fractured, emitting huge flames. The present invention solves this problem, reduces huge waste and eliminates safety hazards; BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a flow chart of a non-explosive phase-change gas blasting method using water as a gas source material according to the present invention; Figure 2 is a schematic diagram of a blast hole as a fracturing device for a dry ice container; Figure 3 This is a schematic diagram of the structure of a heat generating agent container made of metal material in the present invention; Figure 4 It is a structural diagram of the heat pipe body in the present invention; Figure 5 It is a structural schematic diagram of the igniter of the present invention; Figure 6 It is a structural schematic diagram of the first type of igniter of a "non-explosive phase-change gas explosion" heating tube in the present invention, which uses a metal material to make a heating agent container and can be used in sections; Figure 7 It is a structural schematic diagram of a second type of igniter of a "non-explosive phase-change gas explosion" heating tube in the present invention, which uses a metal material to make a heating agent container and can be used in sections; Figure 8 It is a schematic diagram of the structure of the gas source material water container in the present invention. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0024] See also Figure 1 As shown, the present invention provides: a non-explosive phase-change gas blasting method using water as a gas source material, comprising the following steps: S1. The exothermic agent is filled in an exothermic agent container made of metal material; S2. Drill blasting holes with a drill at the blasting site; S3, inserting the igniter into the heating agent container, and then respectively placing the assembled heating tube and the gas source material water in the metal container into the fracturing device (usually a high-pressure steel pipe). Of course, in a fracturing device in which the blasting hole is used as a dry ice container, the blasting hole is the fracturing device; S4. Place the fracturing device into the blasting hole, and finally connect the wire of the igniter to lead it out of the blasting hole and connect it to the detonating device. The detonator can be detonated after being energized.

[0025] The above-mentioned heating tube adopts metal material to make the heating agent container. After the heating agent is ignited, it must be fully burned so that the temperature in the heating tube reaches above the melting point of the metal material serving as the heating agent container, so that the heating agent container of the heating tube is burned. The burning heating agent can only contact the gas source material in the "non-explosive phase change gas blasting" device under this premise, thereby creatively achieving the purpose of the heating agent being able to contact the gas source material only after being fully burned, and thus creatively making the gas generated by the gasification of the gas source material in the "non-explosive phase change gas blasting" device can instantly reach a pressure of more than hundreds of MPa that can crack rocks, just like the gas generated by the explosion of explosives.

[0026] The burning point of paper is between 180 degrees and 230 degrees, and the tensile strength is about 9 MPa; the melting point of PVC is between 390 degrees and 570 degrees, and the tensile strength is about 62 MPa; the melting point of aluminum is 660 degrees, and the tensile strength is greater than 500 MPa; the melting point of iron is 1538 degrees. The tensile strength is between 370-840 MPa; the melting point of steel is between 1400 degrees and 1600 degrees, and the tensile strength reaches more than 1000 MPa; the melting point of copper is 1083 degrees, and the tensile strength is between 200-300 MPa; from the above data, in order to achieve the purpose of the exothermic agent being fully burned in the "non-explosive phase change gas explosion" heating tube and then contacting with the gas source material in the "non-explosive phase change gas explosion" device, it is currently difficult to use paper and PVC non-metallic materials to make exothermic agent containers from the perspective of material properties and economy. Therefore, the present invention uses the best but not limited to iron, steel, aluminum, copper and other metal materials to make the exothermic agent container of the "non-explosive phase change gas explosion" heater. From the two indicators of melting point and tensile strength, the exothermic agent container of the "non-explosive phase change gas explosion" heating tube made of metal materials can achieve the purpose of the present invention.

[0027] Furthermore, the gas source material water of the present invention is installed in a container made of metal materials such as iron, steel, aluminum, and copper, which is the best but not limited to iron, steel, aluminum, and copper. This makes it necessary for the exothermic agent in the heating tube to burn through the metal container containing the exothermic agent and then burn through the metal container containing the gas source material water before it can contact the gas source material water. This creatively buys more time for the exothermic agent in the heating tube to fully burn before contacting the gas source material water, thereby adding a layer of protection to achieve the purpose of the exothermic agent being able to contact the gas source material only after it is fully burned. Of course, in the case where the melting point of the metal material used to make the exothermic agent container is high enough or the wall thickness of the exothermic agent container is thick enough and can achieve the purpose of the exothermic agent being fully burned in the "non-explosive phase change gas explosion" heating tube and then contacting the gas source material in the "non-explosive phase change gas explosion" device, the gas source material water can be installed without using a container made of metal material, and the gas source material water can directly contact the metal material container containing the exothermic agent.

[0028] Furthermore, the non-explosive phase-change gas blasting method of the present invention, which uses water as a gas source material and can be blasted in segments and networks, adopts the following three technical paths to achieve the purpose of segmented network ignition blasting: The first approach is to achieve delayed segmented network blasting by adjusting the wall thickness and material type of the metal material container containing the gas source material water and the metal material container containing the heating agent in the present invention.

[0029] The second approach is that the igniter of the heating tube used in the present invention realizes time delay segmentation through delay medicine like a traditional electric detonator. The delay medicine is an ignition agent that can burn at a predetermined time.

[0030] The third approach is that the igniter of the heating tube used in the present invention realizes the delay through an electronic control module like an electronic detonator, and the electronic module has a built-in microprocessor, capacitor, ignition element, etc.

[0031] At the same time, the present invention provides a non-explosive phase-change gas blasting device using water as a gas source material, including a heating tube body and an igniter for segmented network ignition, a gas source material water, a high-pressure resistant steel pipe or a blasting hole, such as Figure 3 As shown, the heating pipe includes a heating pipe body 1 and an igniter 2 for segmented networking ignition; See also Figure 3-4As shown, the present invention provides a "non-explosive phase change gas explosion" heating tube that uses a heat-generating agent container made of metal material and can be used in sections. It consists of a heating tube body 1 and an igniter 2. The heating tube body 1 contains a heat-generating agent 12, which is responsible for generating heat, and the igniter 2 contains an igniter 22, which is responsible for ignition. Such a structure greatly improves safety while providing the prerequisite for segmented ignition. The heat-generating agent container 11 of the heating tube body 1 is closed and made of metal materials such as iron, steel, aluminum, and copper. Its wall thickness is determined according to product requirements; the heat-generating agent container 11 contains a heat-generating agent 12, and an empty capillary 13 (optimally but not limited to PVC material) 303 is arranged in the middle of the heat-generating agent container 11. The PVC empty capillary 13 is used to insert the igniter 2. The diameter of the capillary of the igniter 2 must be smaller than the diameter of the empty capillary 13 arranged in the middle of the heat-generating agent container 11 to ensure that the igniter 2 can be inserted into the heat-generating tube body 31. The detonation circuit connected to the ignition head 23 or the electronic control module 25 in the igniter 2 passes through the heating tube, the "non-explosive phase change gas blasting" device and the sealing material of the blasting hole and is connected to the external detonation device.

[0032] See also Figure 8 As shown, further, the gas source material water of the present invention is installed in a container made of metal material, which makes the exothermic agent 12 in the heating tube burn through the metal container of the gas source material water before it can contact the gas source material water. This creatively buys more time for the exothermic agent 12 in the heating tube to fully burn before contacting the gas source material water, thereby adding a layer of protection to achieve the purpose of the exothermic agent 12 fully burning before contacting the gas source material water. Of course, in the case where the melting point of the metal material of the exothermic agent container 11 of the "non-explosive phase change gas explosion" heating tube made of metal material is high enough or the wall thickness of the exothermic agent container 11 is thick enough and can achieve the purpose of the exothermic agent 12 fully burning in the "non-explosive phase change gas explosion" heating tube and then contacting the gas source material water in the "non-explosive phase change gas explosion" device, it is also possible not to use a container made of metal material to install the gas source material water, and the gas source material water can directly contact the metal material container 301 containing the exothermic agent.

[0033] See also Figure 8As shown, the present invention provides a first method for achieving delayed segmented network blasting by adjusting the wall thickness and metal material type of the metal material container 601 containing gas source material water and the heat-generating agent container 11 of the heat pipe body 1 in the present invention. The metal material container containing gas source material water in the present invention includes a metal material container 601 and gas source material water 602. The time for the heat-generating agent in the heat-generating agent container 11 of the heat pipe body 1 used in the present invention to burn through the metal material container 601 containing gas source material water in the present invention will change due to the difference in their wall thickness and metal material type. Therefore, by adjusting the wall thickness and metal material type of the metal material container 601 containing gas source material water and the metal material container 11 of the heat pipe body 1 in the present invention, the purpose of delayed segmented network blasting can be achieved. Because of the need for segmented network blasting, the heat-generating agent container 11 of the heat pipe body 1 in the present invention can be divided into 1-N segments by changing its wall thickness and metal material type, and the corresponding metal material container 601 containing gas source material water can also be divided into 1-N segments by changing its wall thickness and metal material type. Through this approach, the present invention can achieve millisecond-level segmented networking blasting.

[0034] See also Figure 5-6 As shown, the present invention provides a second igniter for segmented ignition of an igniter 2 of a "non-explosive phase change gas blasting" heating tube made of a metal material and usable in segments. The igniter 2 is like a traditional electric detonator, and the delay is achieved by delaying the time. The 2-N segmented igniter 2 includes a thin tube 21 with closed ends (preferably but not limited to PVC material), a delaying agent 24 in the filling tube 21 (preferably but not limited to being installed in the middle of the thin tube), an ignition head 403 in the delaying agent, and an ignition agent 22 in the filling tube 21. The delaying agent 24 is an ignition agent that can burn at a predetermined time. In the igniter 2 of the present invention, after the detonator connected to the igniter 2 is powered on, the ignition head 23 ignites first, and the energy generated triggers the combustion of the delaying agent 24. The delaying agent 24 burns at a relatively stable speed, and after a period of time, the flame or high-temperature gas generated by the combustion will ignite the ignition agent 22 in the igniter 2 of the present invention. Note that there is no delay charge in the first segment igniter 2 of the present invention, and the ignition head 23 is in direct contact with the ignition agent 22. For the delay segmentation, the igniter 2 is mainly realized by changing the composition, amount and particle size of the delay charge 24. For example, the ratio of the oxidant and the reductant in the delay charge 24 is adjusted, and the material combination with different burning speeds is replaced. The igniter of the present invention can achieve millisecond-level delayed ignition, and its delay time can be divided into multiple segments, such as 13 segments, 20 segments, etc., ranging from tens of milliseconds to hundreds of milliseconds, which can meet the fine requirements of different blasting projects for the explosion time difference.

[0035] See also Figure 7As shown, the present invention provides a third type of igniter for segmented ignition of a "non-explosive phase change gas explosion" heating tube igniter 2 that uses a metal material to make a heating agent container and can be used in segments, including a capillary tube 21 with both ends closed (preferably but not limited to PVC material), an electronic control module 501 in the capillary tube (preferably but not limited to being installed in the middle of the capillary tube 401), and an igniter 24 in the capillary tube. The igniter 2 is a time delay achieved through an electronic control module like an electronic detonator, and the electronic module has a built-in microprocessor, capacitor, ignition element, etc. In the igniter 2 of the present invention, after the external detonator of the igniter 2 is powered on, the external detonator first sends a detonation signal to the electronic control module 25, which receives and processes the signal, and the capacitor discharges within a predetermined time to activate the ignition element, so that the ignition agent 24 in the igniter 2 of the present invention ignites and burns. The electronic control module 25 can achieve microsecond precision ignition, effectively control the blasting effect in large-scale blasting, reduce vibration and flying rocks, and can add functions such as identity recognition and communication encryption to prevent illegal detonation.

[0036] The present invention discloses a non-explosive phase-change gas blasting technology which uses water as a gas source material and can be blasted in segments in a networked manner, so that a gas blasting project can realize networked blasting, and a specific networking method is arranged according to the needs of the project site.

[0037] The present invention discloses a non-explosive phase-change gas blasting technology which uses water as a gas source material and can be blasted in segmented networks, so that the gas blasting technology can be widely used in tunnel and underground mine tunnel excavation projects like using explosives, and the specific use method is arranged according to the needs of the project site.

[0038] By replacing the heating tubes of the existing carbon dioxide blasting / bursting system with the metal material heating tubes of the present invention and replacing the gas source material liquid carbon dioxide of the blasting / bursting system with the gas source material water contained in the metal material container of the present invention, non-explosive phase change gas blasting can be directly carried out without the need for a high-pressure filling machine and a liquid carbon dioxide tank.

[0039] Combination Figure 2 As shown, by replacing the heating tube in an existing fracturing device using a blasting hole as a dry ice container with the metal material heating tube of the present invention and replacing the gas source material dry ice in the fracturing device with the gas source material water contained in the metal material container of the present invention, non-explosive phase change gas blasting can be directly carried out.

[0040] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, the patent owner may make various variations or modifications within the scope of the appended claims. As long as they do not exceed the protection scope described in the claims of the present invention, they should be within the protection scope of the present invention.

Claims

1. A non-explosive phase-change gas blasting method using water as a gas source material, characterized in that: include: The heating agent is filled in a heating agent container made of metal material; Use a drill to drill blast holes at the blasting site; Insert the igniter into the heating agent container, and then respectively put the assembled heating tube and the gas source material water in the metal container into the high pressure fracturing device; The installed fracturing device is installed into the blasting hole, and finally the wire connected to the igniter is led out of the blasting hole and connected to the detonator. The detonator can be detonated after being energized.

2. A non-explosive phase-change gas blasting method using water as a gas source material according to claim, characterized in that: After the heating agent in the heating tube is ignited, it must be fully burned before the metal container containing the heating agent and the metal container containing the gas source material water can be burned, and then the burning heating agent can contact the gas source material water.

3. The non-explosive phase-change gas blasting method using water as a gas source material according to claim 1, characterized in that: The gas source material water is filled in a container made of metal material, and the metal material is any one of iron, steel and aluminum.

4. The non-explosive phase-change gas blasting method using water as a gas source material according to claim 1, characterized in that: The blasting method adopts segmented networking ignition method.

5. A non-explosive phase-change gas blasting method using water as a gas source material according to claim 4, characterized in that: The segmented ignition networking method is divided into three approaches. The first approach is to achieve delayed segmented networking blasting by adjusting the wall thickness and material type of the metal material container containing the gas source substance water and the metal material container containing the heating agent.

6. The non-explosive phase-change gas blasting method using water as a gas source material according to claim 4 is characterized in that: The second approach to the segmented ignition networking method is that the igniter uses a delay method using a delay charge like a traditional electric detonator to achieve segmented networking ignition.

7. A non-explosive phase-change gas blasting method using water as a gas source material according to claim 4, characterized in that: The third approach of the segmented ignition networking method is that the igniter, like an electronic detonator, uses an electronic control module to achieve delay to achieve segmented networking ignition.

8. A non-explosive phase-change gas blasting device using water as a gas source material, characterized in that: A non-explosive phase-change gas blasting device using other types of gas source materials and adopting any blasting method in claims 1-7, the device comprising a heating tube body and an igniter for segmented network ignition, gas source material water, a high-pressure resistant steel pipe or a blasting hole; The heating pipe body comprises a heating agent container, which is a cylindrical metal structure filled with a heating agent; The igniter is inserted into the heating agent container.

9. A non-explosive phase-change gas blasting device using water as a gas source material according to claim 8, characterized in that: The heating agent container is a closed cylindrical structure, in which a hollow capillary tube with an open upper end is provided in the middle, and the hollow capillary tube is used for inserting the igniter; The igniter comprises a loading tube filled with ignition agent, one end of which is connected to an ignition head or an electronic control module, and its detonation circuit is lengthened to lead out a phase change gas blasting device and a blasting hole and is connected to the detonation device.

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