Ultralow-temperature liquefied air energy rock breaking system and using method

Abstract

The invention provides an ultralow-temperature liquefied air energy rock breaking system and a using method, the ultralow-temperature liquefied air energy rock breaking system comprises a liquefied air conveying system, an ignition excitation system and a biomass adsorption pipe, and the biomass adsorption pipe is filled with biomass material blocks serving as energy raw materials; at the rock breaking position, according to the design, drilling holes of an array are constructed through a drilling machine, biomass adsorption pipes are placed into the drilling holes, a liquefied air conveying system injects liquefied air into the biomass adsorption pipes, and an ignition excitation system remotely controls ignition elements in the biomass adsorption pipes; and therefore, the biomass material blocks are ignited, and liquefied air is excited to expand for rock breaking. The mode that liquefied air and renewable biomass energy are combined is adopted, traditional explosives are not needed, no harmful gas is discharged in the rock breaking process, and environmental protection and safety are achieved; through precise liquid injection and delayed controllable ignition, controllable energy and low-vibration crushing are achieved, and the device is suitable for various scenes such as urban demolition and mining and has the advantages of being environmentally friendly, intelligent and capable of being repeatedly used.

Description

Technical Field

[0001] This invention relates to the field of rock breaking, specifically to a cryogenic liquefied air energy rock breaking system and its usage method. Background Technology

[0002] Currently, rock breaking in open-pit mines primarily relies on explosives for blasting operations. This technology uses detonators to ignite explosives, releasing a large amount of energy in a very short time, generating high-temperature, high-pressure gas that breaks the rock. Mechanical breaking technologies, including hydraulic breakers and rock drills, break rocks through physical impact or cutting, and are suitable for small-scale or secondary breaking operations. Other non-explosive rock breaking technologies, such as carbon dioxide fracturing and static fracturing agents (expanded cement), are used as alternatives to explosives in specific scenarios.

[0003] Traditional explosives are classified as easily explosive hazardous chemicals, and their production, transportation, storage, use, and management are subject to strict regulation. Improper handling can easily lead to safety accidents, posing a significant threat to personnel and equipment. Explosive blasting generates strong shock waves and vibrations, easily triggering flying rocks that damage surrounding buildings, facilities, and the ecological environment; it also produces large amounts of harmful gases and dust, polluting the air and failing to meet the requirements for green mine construction.

[0004] Due to the highly dangerous nature of explosives, their use requires a complex approval process and is strictly restricted in densely populated areas, ecologically sensitive areas, or areas surrounding cities, thus hindering normal mine production. The intense and concentrated energy release from explosive blasting can easily lead to excessive rock pulverization, resulting in a low proportion of large blocks and affecting the efficiency of subsequent mechanical mining; it also generates numerous unpredictable fissures, which are detrimental to slope stability.

[0005] Existing rock breaking technologies generally suffer from high safety risks, significant environmental impact, strict regulation, poor crushing effect, or low efficiency. This solution was designed to address these issues, aiming to provide a novel rock breaking solution that is explosive-free, safe, environmentally friendly, energy-controlled, and highly energy-efficient, filling a gap in large-scale green rock breaking technology. Summary of the Invention

[0006] The main objective of this invention is to provide a cryogenic liquefied air energy rock-breaking system and its usage method, thereby solving the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: including a liquefied air delivery system, an ignition and activation system, and a biomass adsorption tube, wherein the biomass adsorption tube is filled with biomass material blocks as energy raw materials; At the rock-breaking location, according to the design, the drilling rig constructs a drilling array and drills holes. The biomass adsorption tube is lowered into the borehole. The liquefied air delivery system injects liquefied air into the biomass adsorption tube. The ignition and activation system remotely controls the ignition element inside the biomass adsorption tube, thereby igniting the biomass material block and stimulating the expansion of liquefied air to break the rock.

[0008] Preferably, the liquefied air delivery system includes a storage tank, a delivery pump, and a distributor connected in sequence. Each branch of the distributor is equipped with a flow meter, and each flow meter is connected to a secondary distributor, corresponding to a row of biomass adsorption tubes in the borehole.

[0009] Preferably, the branch of the secondary diverter is connected to the inlet on the biomass adsorption tube via an injection pipe and a shut-off valve; After the injection is completed, the injection tube is disconnected through the shut-off valve.

[0010] Preferably, the ignition system includes an ignition control center, in which the igniter is connected in series with biomass adsorption tubes in each row of boreholes via multiple sets of wires, and the wires are electrically connected to the ignition element.

[0011] Preferably, the fixed end of the biomass adsorption tube is fixed with a top cover, the biomass material block is disposed between the fixed tube and the top cover, multiple biomass material blocks are sleeved on the fixed tube, and heat shrink tubing is used to seal the outside of the biomass material block and the top cover. The ignition element is located inside the fixed cylinder, and the wire at the tail of the ignition element passes through the top cover and is electrically connected to the igniter.

[0012] Preferably, the top cover is provided with a liquid inlet and a vent, which are connected to the fixed cylinder. The liquid injection pipe is connected to the liquid inlet, and the vent is provided with a vent pipe with the vent outlet located above the borehole.

[0013] Preferably, the bottom of the fixed cylinder is fixed with a base plate, the top is a threaded shaft, and there is a hollow between the base plate and the threaded shaft. Multiple biomass material blocks are fitted into the hollow, the ignition element is stuck in the hollow, and the resistance wire at the end of the ignition element is directly opposite the biomass material block.

[0014] Preferably, the biomass material block is made of organic matter, and the biomass material block has a central hole in the middle, a boss on the top outer side, and a groove at the bottom of the central hole; The top and bottom periphery of the biomass material block are provided with a connected upper flow slit and a lower flow slit.

[0015] Preferably, a fixing nail is fixed on the top cover of the biomass adsorption tube. The biomass adsorption tube is lowered into the borehole by connecting the fixing nail with a cable. The wire and the liquid injection tube are tied to the cable so that the overall weight of the biomass adsorption tube is transferred to the cable. A fixed stake is installed on one side of the borehole. After the biomass adsorption pipe is lowered to the designed position, the cable is fixedly connected to the fixed stake to suspend the biomass adsorption pipe.

[0016] The method and steps for using the cryogenic liquefied air energy rock-breaking system are as follows: S1. First, carry out on-site cleanup and hazard removal work, and then, according to the rock breaking design, lay out the holes and drill them using a drilling rig; S2. Assemble the biomass adsorption tube and connect the injection tube, exhaust tube, cable and wire. After lowering the biomass adsorption tube to the designated position through the cable, fix the cable to the fixed stake. S3. Fill the borehole with dry drill cuttings to seal it, ensuring that the injection pipe and vent pipe are exposed above the ground; S4. After testing that all systems are operating normally, connect the liquefied air delivery system and the ignition activation system to the biomass adsorption tube and the ignition element. S5. Start the delivery pump to introduce a certain amount of liquefied air into the biomass adsorption pipe. After the flow meter displays the set value, the valve will automatically close. Manually disconnect the injection pipe and seal it through the shut-off valve. The liquefied air delivery system will be removed from the site. S6. The ignition element is activated by the ignition control center, thereby realizing rock breaking operation.

[0017] This invention provides a cryogenic liquefied air-powered rock-breaking system and its usage method, with the following beneficial effects: 1. This system uses liquefied air as the primary power source for expansion, and the rock-breaking process does not produce toxic or harmful gases or residues, avoiding the environmental pollution and safety hazards associated with traditional explosive blasting. Simultaneously, the energy raw materials are selected from renewable biomass materials such as agricultural waste, wood, and algae, achieving efficient utilization of waste resources and conforming to the concept of sustainable development.

[0018] 2. By precisely controlling the injection volume and flow rate of liquefied air, and combining it with a remote ignition system, precise regulation of rock-breaking energy can be achieved. A multi-stage distributor and flow meter work together to ensure synchronous injection of fluid into each borehole, improving rock-breaking uniformity and overall efficiency. The delay-controlled igniter design supports sequential ignition of multiple boreholes, effectively controlling vibration intensity and reducing the impact on the surrounding environment.

[0019] 3. The biomass adsorption tube adopts a modular design. Biomass material blocks are fitted onto the fixed cylinder through the central hole and sealed with the top cover and heat shrink tubing, making installation simple and ensuring good sealing. The injection pipe, exhaust pipe, and wires are integrated and tied to the load-bearing cable, ensuring even stress distribution and preventing detachment during lowering. After injection, the conveying system components can be removed, allowing for equipment reuse and reducing construction costs.

[0020] 4. The exhaust port setup and on-site inspection mechanism allow for real-time monitoring of the liquefied air filling status, assessment of adsorption saturation, and prevention of overpressure or leakage risks. The system is equipped with pressure monitoring, automatic shutdown, and emergency pressure relief functions, enabling timely shutdown and handling in case of leaks or other abnormalities, ensuring operator safety and preventing accidents such as frostbite. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is an overall schematic diagram of the invention; Figure 2 This is a flowchart of the liquefied air delivery system of the present invention; Figure 3 This is a flowchart of the ignition and activation system of the present invention; Figure 4 This is a schematic diagram of the biomass adsorption tube of the present invention installed inside a borehole; Figure 5 This is a front sectional view of the biomass adsorption tube of the present invention; Figure 6 This is an isometric view of the biomass adsorption tube concealed by the heat shrink tubing of the present invention. Figure 7 This is the present invention. Figure 6 Exploded view; Figure 8 This is a structural view of the biomass material block of the present invention; Figure 9 This is the present invention. Figure 8 A bottom view; Figure 10 This is a structural view of the ignition element of the present invention; In the diagram: 1. Storage tank; 2. Activation control center; 3. Transfer pump; 4. Diverter; 5. Biomass adsorption tube; 501. Top cover; 5011. Inlet; 5012. Outlet; 5013. Fixing pin; 502. Fixing cylinder; 5021. Chassis; 5022. Threaded shaft; 5023. Hole; 503. Heat shrink tubing; 504. Biomass material block; 5041. Center hole; 5042. Boss; 5043. Upper flow slot; 5044. Groove; 5045. Lower flow slot; 6. Drill hole; 7. Injection pipe; 8. Fixing stake; 9. Cable; 10. Exhaust pipe; 11. Dry drill cuttings; 12. Wire; 13. Ignition element; 14. Resistance wire; 15. Flow meter; 16. Secondary diverter; 17. Shut-off valve; 18. Activator. Detailed Implementation

[0022] Example 1 like Figures 1-10 As shown, the cryogenic liquefied air energy rock-breaking system includes a liquefied air delivery system, an ignition and activation system, and a biomass adsorption tube 6. The biomass adsorption tube 6 is filled with biomass material blocks 504 as energy raw materials. At the rock-breaking location, according to the design, the drilling rig constructs a drilling array and drills a hole 6. The biomass adsorption tube 6 is lowered into the hole 6. The liquefied air delivery system injects liquefied air into the biomass adsorption tube 6. The ignition and activation system remotely controls the ignition element 13 inside the biomass adsorption tube 6, thereby igniting the biomass material block 504 and stimulating the expansion of liquefied air to break the rock.

[0023] Biomass material blocks 504 are composed of organic materials such as agricultural waste, wood, and algae, which serve as energy raw materials and are converted into combustible gas at high temperatures. These biomass material blocks 504 are filled into biomass adsorption tubes 6. By introducing liquefied air into the biomass adsorption tubes 6 and then igniting them with ignition elements 13, the liquefied air expands and breaks up rocks. A liquefied air delivery system is connected to a multi-stage distributor via a pump to simultaneously inject liquefied air into the biomass adsorption tubes 6 in each borehole 6. After injection, the liquefied air delivery system is removed. An ignition system can remotely ignite the ignition elements 13 within the biomass adsorption tubes 6, thereby achieving rock breaking.

[0024] like Figure 2 As shown, the liquefied air delivery system includes a storage tank 1, a delivery pump 3, and a distributor 4 connected in sequence. Each branch of the distributor 4 is equipped with a flow meter 15, and each flow meter 15 is connected to a secondary distributor 16, corresponding to a biomass adsorption tube 6 in a row of boreholes 6.

[0025] The liquefied air is stored in the storage tank 1. The liquefied air is delivered from the distributor 4 and the secondary distributor 16 to the biomass adsorption tube 6 by the delivery pump 3. The flow meter 15 can automatically control the shutdown according to the set flow rate. The distributor 4 and the secondary distributor 16 can cover all the biomass adsorption tubes 6 in each row of boreholes 6, thereby ensuring that the liquid injection is completed synchronously.

[0026] The branch of the secondary diverter 16 is connected to the inlet 5011 on the biomass adsorption tube 6 through the injection pipe 7 and the shut-off valve 17. After the injection is completed, the injection tube 7 is disconnected through the shut-off valve 17.

[0027] The injection pipe 7 on the biomass adsorption pipe 5 is exposed in the borehole 6 and connected to the secondary distributor 16 through the shut-off valve 17. After the injection is completed, the main valve is closed and the shut-off valve 17 is manually removed to seal the injection pipe 7 on the biomass adsorption pipe 5. The distributor and pipeline are then removed away from the blast center and can be reused.

[0028] like Figure 3As shown, the ignition system includes an ignition control center 2. An igniter 18 in the ignition control center 2 is connected in series with multiple sets of wires 12 within each row of boreholes 6 to the biomass adsorption tubes 6. The wires 12 are electrically connected to the ignition element 13. The igniter 18 can activate the ignition element 13 within the biomass adsorption tube 6, thereby igniting the biomass material block 504.

[0029] like Figures 5-6 As shown, a top cover 501 is fixed at the end of the fixed cylinder 502 in the biomass adsorption tube 5, and a biomass material block 504 is disposed between the fixed cylinder 502 and the top cover 501. Multiple biomass material blocks 504 are sleeved on the fixed cylinder 502, and heat shrink tubing 503 is used to seal the outside of the biomass material block 504 and the top cover 501. The ignition element 13 is located inside the fixed cylinder 502, and the wire 12 at the tail of the ignition element 13 passes through the upper cover 501 and is electrically connected to the igniter 18.

[0030] The top cover 501 and the fixing cylinder 502 are made of plastic. The heat shrink tubing 503 can seal the biomass adsorption tube 5. The fixing cylinder 502 and the top cover 501 fix multiple biomass material blocks 504.

[0031] The upper cover 501 is provided with a liquid inlet 5011 and a vent 5012, which are connected to the fixed cylinder 502. The liquid injection pipe 7 is connected to the liquid inlet 5011. The vent 5012 is provided with a vent pipe, and the outlet of the vent pipe is located above the borehole 6. When liquefied air is introduced, the vent 5012 can discharge excess air.

[0032] like Figure 7 As shown, a base plate 5021 is fixed at the bottom of the fixed cylinder 502, and a threaded shaft 5022 is at the top. A hollow 5023 is provided between the base plate 5021 and the threaded shaft 5022. Multiple biomass material blocks 504 are fitted into the hollow 5023. The ignition element 13 is clipped onto the hollow 5023, and the resistance wire 14 at the end of the ignition element 13 is directly opposite the biomass material block 504.

[0033] like Figures 8-9 As shown, the biomass material block 504 is made of organic matter. The biomass material block 504 has a central hole 5041 in the middle, a boss 5042 on the outer side of the top, and a groove 5044 at the bottom of the central hole 5041. The top and bottom periphery of the biomass material block 504 are provided with a connected upper flow slit 5043 and a lower flow slit 5045.

[0034] The perforated 5023 and the flow slot allow liquefied air to quickly fill the biomass adsorption tube 5. The base 5021 at the bottom of the fixed cylinder 502 is stuck in the groove 5044, and the outer side of the top cover 501 is stuck on the outer side of the biomass material block 504, thus achieving fixed installation.

[0035] like Figure 4 , 6 As shown, a fixing nail 5013 is fixed on the upper cover 501 of the biomass adsorption tube 5. The biomass adsorption tube 5 is lowered into the borehole 6 by connecting the fixing nail 5013 through the cable 9. The wire 12 and the liquid injection tube 7 are tied to the cable 9 so that the overall weight of the biomass adsorption tube 5 is applied to the cable 9. A fixing pile 8 is provided on one side of the borehole 6. After the biomass adsorption pipe 5 is lowered to the designed position, the cable 9 is fixedly connected to the fixing pile 8, thereby suspending the biomass adsorption pipe 5.

[0036] The liquid injection pipe 7, exhaust pipe and wire 12 connected to the biomass adsorption pipe 5 are all tied to the cable 9, and the overall force is applied to the cable 9, thereby preventing the pipe and wire from falling off.

[0037] Example 2 The method of using the cryogenic liquefied air energy rock-breaking system is further explained in conjunction with Example 1: The method of using the cryogenic liquefied air energy rock-breaking system comprises the following steps: S1. First, carry out on-site cleanup and hazard removal work, and then, according to the rock breaking design, lay out the holes and drill them using a drilling rig; The depth of the plugging hole is determined according to the hole depth, hole diameter and other parameters proposed in the construction design plan; before the biomass adsorption pipe 5 enters the site for construction, a warning tape must be set up on the side of the open face, and a conspicuous warning sign must be placed in the construction area.

[0038] S2. Assemble the biomass adsorption tube 5 and connect the liquid injection tube 7, exhaust tube, cable 9 and wire 12. After lowering the biomass adsorption tube 5 to the designated position through the cable 9, fix the cable 9 to the fixing post 8. S3. Fill the borehole 6 with dry drill cuttings to seal it, ensuring that the injection pipe 7 and the vent pipe are exposed above the ground. After the biomass adsorption tube 5 is lowered into the hole, the exposed lengths of the injection tube 7 and the exhaust tube need to be confirmed. The exposed length of the injection tube 7 should be between 0.5m and 1.5m to facilitate connection with the injection tube 7. The exposed length of the exhaust tube should be approximately 0.3m above the ground, and any excess section should be cut off. S4. After testing that each system is operating normally, connect the liquefied air delivery system and the ignition activation system to the biomass adsorption tube 5 and the ignition element 13. S5. Start the delivery pump 3 to introduce a certain amount of liquefied air into the biomass adsorption pipe 5. After the flow meter 15 displays the set value, the valve will automatically close. Manually disconnect the injection pipe 7 through the shut-off valve 17 and seal it. The liquefied air delivery system will be removed from the site. Before filling, the network connection of the excitation circuit must be tested to ensure it is functioning properly before filling. At the start of filling, the filling pressure should be controlled between 0.5 and 0.8 MPa. During filling, frequent inspections are necessary to observe the exhaust volume, temperature, and degree of frost on each exhaust pipe. Combined with parameters such as tank pressure display, capacity display, and injection time, analyze the saturation level of liquefied air adsorption within the heat-melting pipe and address any abnormalities promptly. Observers should maintain a safe distance from the emitted gas to prevent frostbite. If a leak occurs in the pipe or joint during filling, immediately close the main valve and wait for the pipe pressure to release before replacing the pipe.

[0039] S6. The ignition element 13 is activated by the ignition control center 2 through the ignition 18, thereby realizing the rock breaking operation.

[0040] Before initiating rock-breaking activation, the tank pressure valve and gas supply valve must be closed, and personnel must be notified to cut the pipes and evacuate. Evacuation personnel should take care not to break the activation network. After rock breaking, a designated person should check for any unactivated pores, observe the rock-breaking effect, and collect data.

[0041] Treatment of unexcited pores: By employing micro-electric network excitation and countdown risk control methods, the liquefied air inside the hole can automatically evaporate after a certain period of time when there is no micro-electric signal.

[0042] Until the evaporation has completely stopped, the site must remain under vigilance and safety precautions to prevent open flames and static electricity, and to prohibit unauthorized personnel and equipment from entering.

[0043] To ensure that the vibration effects generated during rock breaking do not affect the surrounding environment, rock breaking vibration velocity monitoring should be carried out in the early stages of rock breaking or when necessary, so as to provide feedback information to adjust the drilling and rock breaking parameters in a timely manner and ensure construction safety.

[0044] The exciter 18 consists of a delay mechanism, a booster, output channels, a power supply, an excitation switch, a control panel, and a housing. Parameters are as follows: Excitation voltage: 1500V—3000V adjustable; Signal output channels: no less than 10 channels; Interval time Δt between signal outputs of each channel: 5ms or 10ms adjustable; Reliability: 99.9% confidence level; System time error: The total time between the exciter signal output and the ignition element response is controlled within 5ms; Vibration resistance: Meets the requirements of GB 50994 "Standard for Seismic Appraisal of Electrical Equipment in Industrial Enterprises"; Operating ambient temperature: -30℃ to +50℃.

[0045] The main function of the ignition element 13 is to convert electrical energy into heat energy output. It consists of a metal resistance wire, leads, internal fixing materials, and a shell. Parameters are as follows: Metal wire heating time and temperature: reaching 800-1500℃ within 3ms; Metal wire material and specifications: tungsten wire or similar material, length 2-5mm; Lead wire length: available in 5m, 10m, and 15m specifications according to actual needs; Ignition element resistance: not greater than 29 Ω; Shock resistance: meets the requirements of GB 50994 "Standard for Seismic Appraisal of Electrical Equipment in Industrial Enterprises"; Protective shell: the protective shell material has strong thermal conductivity and certain compressive and bending strength; it also possesses antistatic, anti-corrosion, and waterproof properties.

[0046] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A cryogenic liquefied air energy rock-breaking system, characterized by: It includes a liquefied air delivery system, an ignition and activation system and a biomass adsorption tube (6), the biomass adsorption tube (6) being filled with biomass material blocks (504) as energy raw materials; At the rock-breaking location, the biomass adsorption tube (6) is lowered into the borehole (6) through the drilling array of the drilling rig according to the design. The liquefied air delivery system injects liquefied air into the biomass adsorption tube (6). The ignition and activation system remotely controls the ignition element (13) in the biomass adsorption tube (6), thereby igniting the biomass material block (504) and stimulating the expansion of liquefied air to break the rock.

2. The cryogenic liquefied air energy rock-breaking system according to claim 1, characterized in that: The liquefied air delivery system includes a storage tank (1), a delivery pump (3) and a distributor (4) connected in sequence. Each branch of the distributor (4) is equipped with a flow meter (15), and each flow meter (15) is connected to a secondary distributor (16), which corresponds to a biomass adsorption tube (6) in a row of boreholes (6).

3. The cryogenic liquefied air energy rock-breaking system according to claim 2, characterized in that: The branch of the secondary diverter (16) is connected to the inlet (5011) on the biomass adsorption tube (6) through the injection pipe (7) and the shut-off valve (17); After the injection is completed, the injection tube (7) is separated by the shut-off valve (17).

4. The cryogenic liquefied air energy rock-breaking system according to claim 1, characterized in that: The ignition system includes an ignition control center (2), in which the igniter (18) is connected in series with the biomass adsorption tubes (6) in each row of boreholes (6) via multiple sets of wires (12), and the wires (12) are electrically connected to the ignition element (13).

5. The cryogenic liquefied air energy rock-breaking system according to claim 1, characterized in that: A top cover (501) is fixed at the end of the fixed cylinder (502) in the biomass adsorption tube (5). Biomass material blocks (504) are located between the fixed cylinder (502) and the top cover (501). Multiple biomass material blocks (504) are sleeved on the fixed cylinder (502). Heat shrink tubing (503) is used to seal the outside of the biomass material blocks (504) and the top cover (501). The ignition element (13) is located inside the fixed cylinder (502), and the wire (12) at the tail of the ignition element (13) passes through the top cover (501) and is electrically connected to the igniter (18).

6. The cryogenic liquefied air energy rock-breaking system according to claim 5, characterized in that: The top cover (501) is provided with an inlet (5011) and an outlet (5012). The inlet (5011) and outlet (5012) are connected to the fixed cylinder (502). The injection pipe (7) is connected to the inlet (5011). The outlet (5012) is provided with an exhaust pipe, and the outlet of the exhaust pipe is located above the borehole (6).

7. The cryogenic liquefied air energy rock-breaking system according to claim 5, characterized in that: The bottom of the fixed cylinder (502) is fixed with a base plate (5021) and the top is a threaded shaft (5022). A hollow (5023) is provided between the base plate (5021) and the threaded shaft (5022). Multiple biomass material blocks (504) are fitted into the hollow (5023). The ignition element (13) is stuck in the hollow (5023). The resistance wire (14) at the end of the ignition element (13) is directly opposite the biomass material block (504).

8. The cryogenic liquefied air energy rock-breaking system according to claim 1 or 5, characterized in that: The biomass material block (504) is made of organic matter. The biomass material block (504) has a central hole (5041) in the middle, a boss (5042) on the outer side of the top, and a groove (5044) at the bottom of the central hole (5041). The top and bottom periphery of the biomass material block (504) are provided with a connected upper flow slit (5043) and a lower flow slit (5045).

9. The cryogenic liquefied air energy rock-breaking system according to claim 1, characterized in that: A fixing nail (5013) is fixed on the top cover (501) of the biomass adsorption tube (5). The biomass adsorption tube (5) is lowered into the borehole (6) by connecting the fixing nail (5013) through the cable (9). The wire (12) and the liquid injection tube (7) are tied to the cable (9) so that the overall weight of the biomass adsorption tube (5) acts on the cable (9). A fixed stake (8) is provided on one side of the borehole (6). After the biomass adsorption pipe (5) is lowered to the designed position, the cable (9) is fixedly connected to the fixed stake (8) to suspend the biomass adsorption pipe (5).

10. The method of using the cryogenic liquefied air energy rock-breaking system according to any one of claims 1 to 9, wherein the method steps are as follows: S1. First, carry out on-site cleanup and hazard removal work, and then, according to the rock breaking design, lay out the holes and drill them using a drilling rig; S2. Assemble the biomass adsorption tube (5) and connect the injection tube (7), exhaust tube, cable (9) and wire (12). After lowering the biomass adsorption tube (5) to the designated position through the cable (9), fix the cable (9) to the fixed stake (8). S3. Fill the borehole (6) with dry drill cuttings to seal it, ensuring that the injection pipe (7) and the exhaust pipe are exposed above the ground; S4. After testing that each system is running normally, connect the liquefied air delivery system and the ignition activation system to the biomass adsorption tube (5) and the ignition element (13); S5. Start the delivery pump (3) to introduce a certain amount of liquefied air into the biomass adsorption pipe (5). After the flow meter (15) displays the set value, the valve will automatically close. Manually disconnect the injection pipe (7) through the shut-off valve (17) and seal it. The liquefied air delivery system will be removed from the site. S6. By controlling the igniter (18) through the ignition control center (2) to ignite the ignition element (13), rock breaking operation is achieved.

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