Internal pressure driven instantaneous steam explosion method and system

Abstract

According to the internal-pressure-driven instantaneous steam explosion method and system, a hydraulic jack in a tank is utilized, small pressure is applied firstly to enable an opening and closing mechanism to be in a pre-unlocking state, the pressure is released several seconds later, instantaneous unlocking of the opening and closing mechanism is achieved, and the internal and external high pressure difference of the tank body serves as driving force to generate bending moment to drive the opening and closing mechanism to eccentrically rotate and throw away instantaneously. Therefore, a plurality of air port parts which are uniformly distributed in the axial direction and the circumferential direction on the tank wall are instantly and synchronously opened, so that instant, synchronous and uniform steam explosion of the tank body in the axial direction and the circumferential direction is achieved, effective sealing of the tank ports and the air ports can be achieved through step-by-step pressure boosting in the tank, a higher pressure value in the tank can be reversely guaranteed, and the service life of the tank body is prolonged. And the flash explosion effect is better, complement each other, the design is ingenious, and the practicability is high.

Description

Technical Field

[0001] This invention relates to the field of steam explosion technology, and in particular to a method and system for instantaneous steam explosion driven by internal pressure. Background Technology

[0002] Steam explosion equipment is a type of device used for biomass processing, generally in the fields of environmental protection and clean production. It processes materials including plant fibers, animal tissues, grains, traditional Chinese medicine, and organic solid waste. Due to the diverse application areas and varying forms of materials processed, the equipment configuration needs to be highly flexible and adaptable.

[0003] Chinese patent CN201010536396.3 discloses a novel method for producing ethanol from cereal starchy raw materials via steam explosion. This method involves pretreating the cereal starchy raw materials, followed by steam explosion at a pressure of 1–4 kPa for 2–120 seconds, with an explosion time of 0.00875–1 second. The exploded material is then collected and subjected to saccharification and fermentation to produce ethanol. The application of this novel method for producing ethanol from cereal starchy raw materials via steam explosion can improve process automation, reduce production costs by 10–30%, and save production resources and space, playing a significant role in energy conservation, emission reduction, and improved economic efficiency.

[0004] However, existing steam explosion equipment solutions are typically complex and bulky, making operation and maintenance difficult; pressure is limited, with the maximum chamber pressure ≤2MPa, restricting application scenarios (e.g., unable to handle high-hardness materials); the medium is singular, as insufficient pressure limits the use of only steam explosion, preventing the use of inert gases such as carbon dioxide and nitrogen, which can easily lead to the loss of biomass effective components (such as heat-sensitive substances); explosion is uneven, with gas only exiting from the bottom, resulting in significant differences in the distance between the upper and lower materials and the gas outlet, leading to uneven explosion effects; the process is complex, relying on an external boiler to provide steam, making the production process cumbersome and resulting in high energy consumption and supporting costs. Furthermore, the external sealing door pressure-bearing system is typically complex; the sealing force requirement is high, as the sealing door is located outside the pressure vessel and bears the full differential pressure load from the inside out, requiring mechanical locking devices (bolt groups, hydraulic clamps) or high-pressure seals to provide reverse pressure, resulting in a very large sealing force required for a single door; system integration is difficult, requiring pressure sensors, servo hydraulic stations, or multi-stage mechanical linkage mechanisms to achieve dynamic adjustment of the sealing force, significantly increasing the equipment size and the complexity of the control logic. In addition, the piston drive system has prominent power matching problems, such as high driving force requirements, large mass of piston-sealing door assembly, need to overcome inertial force for rapid movement, large output force of a single power system (hydraulic cylinder / pneumatic cylinder), and reliance on high-power drive device; and the equipment structure is redundant. Summary of the Invention

[0005] One of the objectives of this invention is to address the shortcomings of existing technologies by providing an internal pressure-driven instantaneous steam explosion method and system. This method utilizes a hydraulic jack inside the tank to apply a small pressure to pre-unlock the opening and closing mechanism. After a few seconds, the pressure is released, instantly unlocking the mechanism. The high pressure difference between the inside and outside of the tank is used as a driving force to generate a bending moment, which drives the opening and closing mechanism to instantly rotate eccentrically and open, thereby instantaneously and synchronously opening multiple air vents evenly distributed along the axial and circumferential directions on the tank wall. This achieves instantaneous, synchronous, and uniform steam explosion along the axial and circumferential directions of the tank. Furthermore, it can utilize the gradual increase in pressure inside the tank to effectively seal the tank openings and air vents, thereby ensuring that the tank can reach a higher pressure value, achieving a better flash explosion effect. This method is complementary, ingeniously designed, and highly practical.

[0006] To achieve the above objectives, one of the objectives of this invention is to provide a method for instantaneous steam explosion driven by internal pressure, comprising the following steps: S1, Feeding and closing the lid: The material cylinder carrying the material to be blasted is placed into the tank body through the feed port and the tank lid is closed. In the initial state, each opening and closing mechanism completely seals each exhaust part on the tank body and is in a rotating locked state. S2, Internal pressurization: The gas supply module introduces high-pressure gas required for blasting into the tank; S3, Sliding Unlock: The unlocking module uses high-pressure gas inside the tank to drive the opening and closing mechanism to slide and release the rotation lock; S4, Instantaneous Steam Explosion: The high pressure difference between the inside and outside of the tank drives the opening and closing mechanism to rotate so as to open the exhaust section instantaneously and synchronously, and the material receiving in the material cylinder is subjected to instantaneous steam explosion operation. S5, Automatic Reset: After the high pressure inside the tank is released, the opening and closing mechanism undergoes elastic self-reset, first rotating in the opposite direction to close the exhaust section again, and then sliding in the opposite direction to return to its rotation lock state. S6, Open the lid and discharge: The material that has been blasted is left in the material cylinder. Open the lid and take out the material cylinder.

[0007] Preferably, in steps S1-S2, the can lid and the opening and closing mechanism are both built inside the can body. During the pressurization process inside the can in step S2, the gradual increase in pressure inside the can assists the opening and closing mechanism in fully pressing and sealing the exhaust section, and assists the can lid in fully pressing and sealing the material outlet.

[0008] Preferably, in steps S2-S3, during the pressurization process inside the tank in step S2, the unlocking module pre-drives the opening and closing mechanism to slide to a certain extent to the critical unlocking state. When the pressure inside the tank reaches the set value, the unlocking module then drives the opening and closing mechanism to complete the final stroke of the sliding motion to unlock instantly.

[0009] Preferably, in step S3, the unlocking module includes a pneumatic cylinder and a hydraulic cylinder. The piston of the pneumatic cylinder and the piston of the hydraulic cylinder are rigidly coupled by hydraulic oil, and the piston area of ​​the pneumatic cylinder is larger than that of the hydraulic cylinder. The pressure of the pneumatic cylinder comes from the internal pressure of the tank and applies pressure to the hydraulic cylinder in a proportionally amplified manner. Then, the hydraulic jack pushes open and unlocks the opening and closing mechanism.

[0010] Preferably, in steps S3-S4, the opening and closing mechanism is eccentrically mounted on the tank body, and the high pressure difference between the inside and outside of the tank body is used as the driving force to generate a bending moment, so as to drive the opening and closing mechanism to instantly rotate eccentrically and swing open.

[0011] Preferably, in step S4, the tank body has several layers along its axial direction, and each layer has several sets of exhaust sections evenly distributed around its circumference to achieve synchronous and uniform steam explosion in the tank body along the axial and circumference directions.

[0012] The second objective of this invention is to provide an internal pressure-driven instantaneous steam explosion system, comprising: a tank body, wherein a material inlet is provided at the top of the tank body, a material cylinder enters and exits the tank body through the material inlet, and a tank cover seals the material inlet; the tank body has several layers along its axial direction, and each layer has several sets of exhaust sections evenly distributed around its circumference; a gas supply module, which is connected to the interior of the tank body and supplies high-pressure gas required for explosion into the tank body; an opening and closing mechanism, wherein each exhaust section is matched with an opening and closing mechanism in the tank body to close the exhaust section, and the opening and closing mechanism is in a rotationally locked state when the exhaust section is completely closed; and an unlocking module, wherein each layer of the tank body is matched with the opening and closing mechanism and the unlocking module is connected to the tank body, wherein the high pressure inside the tank drives the opening and closing mechanism to slide to release the rotational lock, and then the high pressure difference inside and outside the tank drives the opening and closing mechanism to rotate to instantaneously open the exhaust section.

[0013] Preferably, the gas supply module includes: at least one set of air inlet pipes connected to the gas supply device, the air inlet pipes leading into the tank body; and a solenoid valve A, the solenoid valve A being disposed on the air inlet pipe.

[0014] Preferably, the air intake pipe is provided with at least two sets to mix different gases.

[0015] Preferably, the system also includes a feeding / discharging module. The tank body has a feeding port. The feeding / discharging module includes a material cylinder and a tank cover. The material cylinder is used to carry the material to be blasted and enters and exits the tank body through the feeding port. Mesh holes are distributed on its side wall. The tank cover seals the feeding port.

[0016] As an improvement, the can lid 52 adopts an internal can lid structure to seal the feed port 15 from the inside of the can.

[0017] Preferably, the tank body has several sides evenly distributed around its circumference, and each side is provided with a set of exhaust sections, and each set includes several exhaust sections evenly distributed side by side.

[0018] Preferably, a rotating groove is provided on one side of the tank body of the opening and closing mechanism. The opening and closing mechanism is eccentrically rotated relative to the exhaust section and its rotating shaft is biased towards the rotating groove. Thus, the opening and closing mechanism is triggered to rotate and slide into the rotating groove when subjected to a high pressure difference between the inside and outside of the tank, so as to open the exhaust section.

[0019] Preferably, the rotating groove includes an arc portion that is adapted to the rotation trajectory of the opening and closing mechanism and guides the rotation of the opening and closing mechanism, and a stop portion located at the end position of the arc portion and limiting the rotation of the opening and closing mechanism.

[0020] Preferably, the sealing part of the opening and closing mechanism is configured with a sloped surface to allow the sealing part to slide into the rotating groove; the exhaust part is correspondingly inclined to match and seal with the front surface.

[0021] Preferably, the opening and closing mechanism includes: an opening and closing assembly, which includes a sealing part and a rotating shaft part, the rotating shaft part being connected to one rear end of the sealing part to form an eccentric structure; a locking assembly, which includes a sliding part rotatably mounted on the rotating shaft part, a slide rail and a slot being provided on the tank body, the sliding part being slidably mounted in the slide rail, the slot being recessed in the inner side of the exhaust part, and when subjected to force in the front-back direction, the sliding part triggers sliding to cause the sealing part to be locked in the slot for rotational locking or to disengage from the slot to release the rotational locking; and an elastic element, which is connected between the tank body and the opening and closing assembly, the elastic force of which causes the opening and closing assembly to reverse and reset from the rotating slide rail to close the exhaust part, and causes the sealing part to be locked back in the slot and pressed against the exhaust part.

[0022] Preferably, connecting plates are provided at both ends of the rotating shaft, and each connecting plate is connected to the corresponding side of the tank body with an elastic element, and the axial direction of the elastic element is arranged along the front-back direction.

[0023] Preferably, the exhaust section includes an exhaust section formed on the tank body and a sealing ring that is sealed to the inside of the tank body. Under the elastic force of the elastic element, the opening and closing assembly presses against the sealing ring to effectively seal the exhaust section.

[0024] Preferably, the opening and closing mechanism is provided with a hollow part to balance the left and right pressure difference when the opening and closing mechanism rotates to open the exhaust part.

[0025] Preferably, a plurality of the hollowed-out portions are provided at the connection between the rear part of the sealing portion and the pivot portion.

[0026] Preferably, each layer of the tank body has N sets of exhaust sections evenly distributed around its circumference, each set including M exhaust sections arranged side by side, and N / 2 unlocking modules are matched accordingly, with each pair of adjacent exhaust sections sharing one unlocking module.

[0027] Preferably, the unlocking module includes an air pipe, an air cylinder, a hydraulic cylinder, an oil pipe, and a hydraulic jack section connected in sequence. The air pipe's inlet end is connected to the tank body, and its outlet end is connected to the cylinder body of the air cylinder. The cylinder bodies of the air cylinder and the hydraulic cylinder are interconnected, and a piston is movably disposed within each. The cross-sectional area of ​​the air cylinder body and the cross-sectional area of ​​its internal piston are correspondingly larger than the cross-sectional area of ​​the hydraulic cylinder body and the cross-sectional area of ​​its internal piston. The hydraulic jack section includes a hydraulic jack and a hydraulic jack rod movably disposed within the hydraulic jack cylinder body. The cylinder bodies of the hydraulic cylinder and the hydraulic jack are connected via an oil pipe. The hydraulic jack rod extends out of the hydraulic jack cylinder body and is connected to the locking assembly. A solenoid valve B is also disposed on the oil pipe.

[0028] Preferably, the piston of the pneumatic cylinder and the piston of the hydraulic cylinder are rigidly coupled by hydraulic oil, and the piston area of ​​the pneumatic cylinder is larger than that of the hydraulic cylinder.

[0029] Preferably, the oil pipe includes a main oil pipe and several branch oil pipes connected to the main oil pipe and matched with the opening and closing mechanism. The solenoid valve B is installed on the main oil pipe. A branch oil cylinder is connected between the main oil pipe and the branch oil pipes. The oil outlet end of each branch oil pipe is connected to a hydraulic jack.

[0030] Preferably, the oil distribution cylinder of each unlocking module is arranged between the two sets of exhaust sections that are shared. Each oil distribution cylinder is connected to and extended to both horizontal sides with a set of oil distribution pipes that match the set of exhaust sections on that side. Each set of oil distribution pipes includes M oil distribution pipes to match the opening and closing mechanism one by one.

[0031] In a preferred embodiment, the oil distribution cylinder is arranged vertically and the oil distribution pipe is arranged horizontally.

[0032] Preferably, each of the upper and lower parts of the hydraulic cylinder is connected to and extends a set of hydraulic pipes, wherein the upper set of hydraulic pipes is matched with the upper position of the opening and closing mechanism to cooperate with the hydraulic top part to provide the driving force for sliding unlocking from the upper part of the opening and closing mechanism, and the lower set of hydraulic pipes is matched with the lower position of the opening and closing mechanism to cooperate with the hydraulic top part to provide the driving force for sliding unlocking from the lower part of the opening and closing mechanism; correspondingly, the upper and lower parts of the rotating shaft are each connected to a sliding part.

[0033] The beneficial effects of this invention are as follows: (1) The present invention utilizes the hydraulic top inside the tank to first apply a small pressure to put the opening and closing mechanism in a pre-unlocked state, and release the pressure after a few seconds to realize the instantaneous unlocking of the opening and closing mechanism. The pressure difference between the inside and outside of the tank is used as the driving force to generate a bending moment to drive the opening and closing mechanism to rotate eccentrically and swing open instantly, thereby instantaneously opening multiple air ports evenly distributed along the axial and circumferential directions on the tank wall, so as to achieve instantaneous synchronous uniform steam explosion along the axial and circumferential directions of the tank body. It can also use the gradual pressure increase inside the tank to achieve effective sealing of the tank opening and air ports, thereby ensuring that the tank can reach a higher pressure value and achieve a better flash explosion effect. It complements each other, is ingeniously designed, and has strong practicality. The maximum pressure inside the tank in the present invention can reach 10MPa (nitrogen).

[0034] (2) The present invention distributes multiple layers along the axial direction on the tank body, and each layer is evenly distributed with multiple exhaust sections along the circumference. The exhaust sections are sealed by matching opening and closing mechanisms inside the tank body. A gas supply module is set to supply high-pressure gas required for gas explosion into the tank body. The opening and closing mechanism is designed to be eccentrically rotated on the tank body and slide back and forth relative to the exhaust section. With the help of the unlocking module, the hydraulic top inside the tank drives each opening and closing mechanism to slide and unlock synchronously and quickly. Then, the strong pressure difference inside and outside the tank drives each opening and closing mechanism to rotate instantaneously and open the exhaust section synchronously, so as to realize the synchronous instantaneous explosion of the tank body in all directions.

[0035] (3) The present invention achieves simultaneous instantaneous exhaust explosion in all directions by uniformly distributing multiple layers along the axial direction of the tank body, with several exhaust sections evenly distributed along the circumference of each layer, which is more uniform and has a better explosion effect. Furthermore, each layer is matched with several sets of exhaust sections evenly distributed along the circumference and is equipped with an unlocking structure, which can provide a stable and reliable unlocking driving force for each exhaust section. The layout is compact and reasonable, and suitable for practical application.

[0036] (4) This invention is based on the principle of using high pressure to decompose materials in a flash explosion tank system. It makes full use of the powerful driving force of the high pressure inside the tank to achieve multiple driving functions. The unlocking of the opening and closing mechanism relies on the high pressure inside the tank as the driving force for sliding unlocking, and its locking relies on the high pressure inside the tank for full compression and locking. During the pressurization process inside the tank, the opening and closing mechanism can be pressed more tightly onto the exhaust section by gradually increasing the pressure, achieving full and effective sealing, ensuring the locking stability of the opening and closing mechanism itself and the effectiveness of its compression and sealing of the exhaust section, ensuring the subsequent instantaneous steam explosion effect, and using the high pressure inside the tank to drive the opening and closing mechanism to complete the rotation instantly so that the exhaust section opens instantly within milliseconds and completes the flash explosion. Combined with the high pressure gas inside the tank being released instantly through the exhaust section to generate huge explosive force, thereby achieving a super-strong explosion effect. This invention makes full use of the system's own characteristics to achieve multiple driving functions to realize and ensure the system's super-strong flash explosion effect. The design concept is very ingenious.

[0037] (5) In this invention, the cylinder piston and hydraulic cylinder piston of the unlocking module are rigidly coupled by hydraulic oil, and the piston area of ​​the cylinder is several times larger than that of the hydraulic cylinder piston. The pressure applied by the cylinder piston to the hydraulic cylinder piston is proportionally amplified according to the area ratio, and finally realizes the conversion of the pressure inside the tank to the higher pressure of the hydraulic cylinder. This provides a strong unlocking driving force, enables the opening and closing mechanism to be opened and unlocked easily and quickly, fully ensures the instantaneous sliding unlocking of the opening and closing mechanism, and thus ensures the instantaneous opening of the exhaust section. This effectively avoids the problem of insufficient force causing the exhaust section to fail to open and affecting the steam explosion effect.

[0038] (6) The core mechanism of the unlocking module in this invention is pressure from the same source. It integrates a gas-liquid conversion unit and does not require an external power source. That is, the cylinder pressure is directly taken from the inside of the tank and the pressure is amplified through a purely mechanical structure. After the pressure is amplified, the unlocking force is strong and the action is fast. It is suitable for relying on the pressure inside the tank to drive the actuator to unlock and open quickly. It has the advantages of rapid response and compact structure. It has no electrical components and can fully adapt to high temperature and high pressure environments. Attached Figure Description

[0039] Figure 1 This is a process flow diagram of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram of the main structure of the tank body of the present invention; Figure 4 This is a schematic diagram of the internal structure of the tank in this invention; Figure 5 This is a schematic diagram of the opening and closing mechanism rotating to open in this invention; Figure 6 This is a schematic diagram showing the state of the exhaust section from closed to open in this invention; Figure 7 This is a schematic diagram of the tank wall structure in this invention; Figure 8 This is a schematic diagram showing the state in which the opening and closing mechanism of the present invention opens the exhaust section; Figure 9 This is a schematic diagram of the opening and closing mechanism in this invention; Figure 10 This is a schematic diagram of the tank structure at the exhaust position in this invention; Figure 11 for Figure 10 Enlarged view of point A in the middle; Figure 12 This is a connection diagram of the unlocking module in this invention. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0042] Example 1 like Figure 1 As shown, a method for instantaneous steam explosion driven by internal pressure includes the following steps: S1, Feeding and closing the cover: The material cylinder 51 carrying the material to be blasted is placed into the tank body 1 through the material inlet 15 and the tank cover 52 is closed. In the initial state, each opening and closing mechanism 3 completely closes each exhaust part 11 on the tank body 1 and is in a rotating locked state. S2, Internal pressurization: Gas supply module 2 introduces high-pressure gas required for explosion into tank 1; S3, Sliding Unlock: The unlocking module 4 uses high-pressure gas inside the tank to drive the opening and closing mechanism 3 to slide and release the rotation lock; S4, instantaneous steam explosion: The high pressure difference between the inside and outside of the tank drives the opening and closing mechanism 3 to rotate so as to open the exhaust section 11 instantaneously and synchronously, and the material receiving in the material cylinder 51 is subjected to instantaneous steam explosion operation. S5, Automatic Reset: After the high pressure inside the tank is released, the opening and closing mechanism 3 undergoes elastic self-reset, first rotating in the opposite direction to close the exhaust section 11 again, and then sliding in the opposite direction to return to its rotation lock state. S6, Open the lid and discharge: The material that has been blasted is left in the material cylinder 51. Open the lid 52 and take out the material cylinder 51.

[0043] Preferably, in steps S1-S2, the can lid 52 and the opening and closing mechanism 3 are both built inside the can body 1. During the pressurization process inside the can in step S2, the gradual increase in pressure inside the can assists the opening and closing mechanism 3 in fully pressing and sealing the exhaust section 11, and assists the can lid 52 in fully pressing and sealing the material outlet 15.

[0044] Preferably, in steps S2-S3, during the pressurization process inside the tank in step S2, the unlocking module 4 pre-drives the opening and closing mechanism 3 to slide to a certain extent to the critical unlocking state. When the pressure inside the tank reaches the set value, the unlocking module 4 then drives the opening and closing mechanism 3 to complete the final stroke of the slide to unlock instantly.

[0045] Preferably, in step S3, the unlocking module 4 includes a cylinder 42 and a hydraulic cylinder 43. The piston of the cylinder 42 and the piston of the hydraulic cylinder 43 are rigidly coupled by hydraulic oil, and the piston area of ​​the cylinder 42 is larger than the piston surface of the hydraulic cylinder 43. The pressure of the cylinder 42 comes from the internal pressure of the tank 1 and applies pressure to the hydraulic cylinder 43 in a proportionally amplified manner. Then, the hydraulic cylinder 43 pushes open and unlocks the opening and closing mechanism 3.

[0046] Preferably, in steps S3-S4, the opening and closing mechanism 3 is eccentrically mounted on the tank 1, and the high pressure difference between the inside and outside of the tank 1 is used as the driving force to generate a bending moment, so as to drive the opening and closing mechanism 3 to instantly rotate eccentrically and swing open.

[0047] Preferably, in step S4, the tank body 1 has several layers along its axial direction, and each layer has several sets of exhaust sections 11 evenly distributed around its circumference to achieve synchronous and uniform steam explosion in the tank body 1 along the axial and circumference directions.

[0048] Example 2 The components in this embodiment that are the same as or corresponding to those in the above embodiments are referred to by the same reference numerals as those in the above embodiments. For the sake of simplicity, only the differences between this embodiment and the above embodiments are described below. The difference between this embodiment and the above embodiments is that: like Figures 2-4 As shown, an internal pressure driven instantaneous steam explosion system includes: a tank body 1, with a material inlet 15 at the top of the tank body 1, through which a material cylinder 51 enters and exits the tank body 1; a tank cover 52 seals the material inlet 15; the tank body 1 has several layers along its axial direction, and each layer has several sets of exhaust sections 11 evenly distributed around its circumference; a gas supply module 2, which is connected to the interior of the tank body 1 and supplies high-pressure gas required for the explosion into the tank body 1; and an opening and closing mechanism 3, which connects the tank body 1 to the exhaust section 1. Each exhaust section 11 is equipped with a corresponding opening and closing mechanism 3 to seal the exhaust section 11, and the opening and closing mechanism 3 is in a rotational locked state when the exhaust section 11 is completely closed; and an unlocking module 4 is provided on each tank 1, which is matched with the opening and closing mechanism 3. The unlocking module 4 is connected to the tank 1, and its high pressure inside the tank drives the opening and closing mechanism 3 to slide to release the rotational lock. Then, the high pressure difference inside and outside the tank drives the opening and closing mechanism 3 to rotate to instantly open the exhaust section 11.

[0049] In this embodiment, on the one hand, an eccentric rotation fit structure is designed for the opening and closing mechanism 3 on the tank body 1. The high pressure inside the tank drives the opening and closing mechanism 3 to rotate eccentrically so as to open the exhaust section 11 instantaneously and synchronously, thereby realizing the wall breaking effect of the material. On the other hand, a sliding locking fit structure is designed for the opening and closing mechanism 3 on the tank body 1. Its locking design can ensure the stable sealing effect and equipment reliability during the pressurization process inside the tank. The unlocking module 4 is set to drive the opening and closing mechanism 3 to slide and unlock under the high pressure inside the tank. The structure is ingenious.

[0050] As a preferred option, such as Figure 7 As shown, a rotating groove 12 is provided on one side of the tank body 1 of the opening and closing mechanism 3, such as... Figure 5 As shown, the opening and closing mechanism 3 is eccentrically rotated relative to the exhaust section 11 and its rotating shaft 301 is biased towards the rotating slide groove 12. Thus, the opening and closing mechanism 3 is triggered to rotate and slide into the rotating slide groove 12 when subjected to a high pressure difference between the inside and outside of the tank, so as to open the exhaust section 11.

[0051] In this embodiment, an exhaust section 11 is provided on the tank body 1, and an opening and closing component 31 is provided to match the eccentric rotation of the exhaust section 11. A rotating slide groove 12 is provided on the eccentric side of the opening and closing component 31, so that when the other side of the opening and closing component 31 is subjected to high pressure inside the tank, it is triggered to rotate and slide into the rotating slide groove 12 to open the exhaust section 11.

[0052] As a preferred option, such as Figure 6 and Figure 11 As shown, the rotating slide 12 includes an arc portion 121 that is adapted to the rotation trajectory of the opening and closing mechanism 3 and guides the rotation of the opening and closing mechanism 3, and a stop portion 122 located at the end position of the arc portion 121 and limiting the rotation of the opening and closing mechanism 3.

[0053] In this embodiment, the rotation of the opening and closing assembly 31 is guided by the arc portion 121, and the stop portion 122 limits the rotation endpoint of the opening and closing assembly 31. The elastic element 33 is used to reverse and reset after the high pressure in the tank is released.

[0054] As a preferred option, such as Figure 6 As shown, the sealing part 311 of the opening and closing mechanism 3 is used to block the front end face 310 of the exhaust part 11. It is set as a slope to make way for the sealing part 311 to rotate and slide into the rotating slide groove 12; the exhaust part 11 is correspondingly inclined to match and seal with the front end face 310.

[0055] As a supplementary explanation, the fact that the front end face 310 is set as a sloping surface means that the distance from the end of the front end face 310 close to the rotating slide 12 to the rotation center of the sealing part 311 is L1, and the distance from the end of the front end face 310 away from the rotating slide 12 to the rotation center of the sealing part 311 is L2, where L1≥L2, in order to ensure that the end of the front end face 310 away from the rotating slide 12 can smoothly enter the rotating slide 12.

[0056] It is worth noting that the switching structure of the exhaust section 11 on the tank body 1 in this invention adopts a purely mechanical structure. Its switching action is stable and the sealing performance is always guaranteed, resulting in a good gas explosion effect and good reusability. It can also use the high pressure inside the tank to achieve the effect of pressing and sealing the exhaust section 11 and opening it instantly. The design is ingenious and effective. By setting an eccentric sealing door structure, when the high pressure inside the tank is used as the driving force, a bending moment is generated, thereby achieving smooth opening of the sealing door and having an instantaneous swing-out effect, realizing the instantaneous opening of the exhaust section 11 and ensuring the gas explosion effect.

[0057] As a preferred option, such as Figures 8-9As shown, the opening and closing mechanism 3 includes: an opening and closing assembly 31, which includes a sealing part 311 and a rotating shaft part 301. The rotating shaft part 301 is connected to the rear end of the sealing part 311 to form an eccentric structure; and a locking assembly 32, which includes a sliding part 321 on which the rotating shaft part 301 is rotatably mounted. A slide rail 13 and a slot 14 are provided on the tank body 1. The sliding part 321 is slidably mounted in the slide rail 13, and the slot 14 is recessed in the exhaust part 1. When the inner side of 1 is subjected to force in the front-back direction, the sliding part 321 is triggered to slide so that the sealing part 311 is locked in the slot 14 to be rotated or disengaged from the slot 14 to release the rotation lock; and the elastic member 33 is connected between the tank body 1 and the opening and closing assembly 31. Its elastic force causes the opening and closing assembly 31 to reverse and reset from the rotating slide groove 12 to close the exhaust part 11, and causes the sealing part 311 to be locked in the slot 14 and pressed against the exhaust part 11.

[0058] See Figure 5 In one specific embodiment, the sealing part 311 and the rotating shaft part 301 located about 12cm away from the exhaust part 11 are an integrated structure. There is an eccentricity L between the center line of the exhaust part 11 and the center line of the rotating shaft. The sealing part 311 and the rotating shaft part 301 are rigidly connected. The vertical distance between the axis of the rotating shaft part 301 and the plane where the sealing part 311 is located is about 12cm, and there is an eccentricity (i.e., lateral offset) between the projection center of the rotating shaft part 301 on the plane where the sealing part 311 is located and the pressure-bearing center of the sealing part 311. Based on this structure, the driving principle of the opening and closing component 31 is as follows: when the rotating shaft part 301 is unlocked, the pressure difference (ΔP) inside and outside the tank acts on the sealing part 311, and the pressure applied to the sealing part 311 inside the tank is perpendicular to the exhaust part 11. The total pressure is P. Due to the eccentricity L, the pressure difference load is converted into rotational torque (T=pressure difference × pressure-bearing area × eccentricity), thereby pushing the sealing part 311 to rotate and open the exhaust part 11.

[0059] It is worth noting that the core technology of the exhaust opening and closing structure in this embodiment is to utilize pressure difference for self-drive, without the need for additional power, and the structure is simple. The eccentricity is a key parameter for torque generation, and the pressure difference and pressure-bearing area need to be matched to ensure that the sealing mechanism can be opened reliably.

[0060] In this embodiment, a sliding locking mechanism 3 is designed on the tank body. Specifically, the locking component 32 is slidably installed on the slide rail 13 of the tank body 1. When the locking component 32 slides toward the exhaust section 11, the opening and closing component 31 can be locked in the slot 14 for rotational locking. This locking design ensures that the opening and closing mechanism 3 will not rotate during the pressurization process inside the tank, ensuring a stable seal for the exhaust section 11. Furthermore, since the opening and closing mechanism 3 is installed inside the tank body 1, as the pressure inside the tank gradually increases, the opening and closing mechanism 3 can be pressed more tightly against the exhaust section, achieving a sufficient and effective seal. This ensures the locking stability of the opening and closing mechanism 3 itself and the effectiveness of its sealing of the exhaust section 11. The locking component 32 is then driven to slide out of the slot 14 by the unlocking module 4, which is configured to unlock the mechanism.

[0061] In this embodiment, by setting the elastic element 33, the opening and closing assembly 31 is simultaneously reversed and reset to close the exhaust section 11 and slid reset to cooperate with the exhaust section 11 for sealing and locking. The structure is simple and the action is ingenious to achieve rapid self-reset and good effect.

[0062] When the opening and closing mechanism 3 is unlocked, it slides out of the slot 14 to complete the unlocking. During the process, the elastic element 33 is stretched and stored. When the high pressure inside the tank is fully released, the elastic element 33 releases its elastic force to drive the opening and closing mechanism 3 to slide back and reset. When the exhaust section 11 is opened, the opening and closing mechanism 3 rotates and slides into the rotating groove 12. During the process, the elastic element 33 on one side is stretched and stored, and the elastic element 33 on the other side is compressed and stored. So when the high pressure inside the tank is fully released, the elastic elements 33 on both sides release their elastic force to jointly drive the opening and closing mechanism 3 to reverse and reset.

[0063] As a preferred option, such as Figure 8 As shown, the exhaust section 11 includes an exhaust section 111 opened on the tank body 1 and a sealing ring 112 that is sealed to the inner side of the tank body 1 of the exhaust section 111. Under the elastic force of the elastic member 33, the opening and closing assembly 31 presses against the sealing ring 112 to effectively seal the exhaust section 111.

[0064] In a preferred embodiment, the main body of the sealing ring 112 is made of copper, and the contact side between the copper main body and the exhaust part 11 is made of soft PTFE, which is a soft metal that provides a sealing function and is corrosion resistant, making it suitable for gas explosion conditions of various materials.

[0065] As a preferred option, such as Figure 9As shown, connecting plates 302 are provided at both ends of the rotating shaft 301. Each connecting plate 302 is connected to the corresponding tank body 1 with an elastic element 33, and the axial direction of the elastic element 33 is arranged along the front-back direction.

[0066] As a preferred option, such as Figure 3 As shown, the gas supply module 2 includes: at least one set of air inlet pipes 21 connected to the gas supply device, the air inlet pipes 21 leading into the tank body 1; and a solenoid valve A22, the solenoid valve A22 being disposed on the pipeline of the air inlet pipes 21.

[0067] Preferably, the air inlet pipe 21 is provided with at least two sets to accommodate different gases. In this embodiment, the gas / steam is supplied to the tank directly from a high-pressure nitrogen tank; if steam is required, it is supplied via a pipeline boiler.

[0068] In some embodiments, the solenoid valve A22 is a pilot-operated gas solenoid valve A.

[0069] As a preferred option, such as Figure 2 As shown, it also includes a feeding and discharging module. The tank body 1 has a material inlet 15. The feeding and discharging module includes a material cylinder 51 and a tank cover 52. The material cylinder 51 is used to carry the material to be blasted and enters and exits the tank body 1 through the material inlet 15. Mesh holes are distributed on its side wall. The tank cover 52 seals the material inlet 15.

[0070] As an improvement, the can lid 52 adopts an internal can lid structure to seal the feed port 15 from the inside of the can.

[0071] In one implementation, the can lid 52 has a built-in elliptical structure. The feed port 15 is also set to be elliptical, and the elliptical size of the can lid 52 is larger than that of the feed port 15. During installation, the short side of the ellipse of the can lid 52 is tilted to correspond to the long side of the ellipse of the feed port 15. After being inserted by the control of the robot, it is placed flat and then rotated 90 degrees to complete the installation of the can lid 52. Then, the can lid 52 is sealed by lifting and pressing it with the robot and setting a polytetrafluoroethylene sealing ring on the mating surface of the can lid 52 and the feed port 15.

[0072] It is worth noting that, in the closed state, the high pressure inside the tank assists the opening and closing mechanism 3 in fully pressing and sealing the exhaust section 11, and assists the tank cover 52 in fully pressing and sealing the material port 15. The greater the pressure, the better the sealing effect.

[0073] Example 3 The components in this embodiment that are the same as or corresponding to those in the above embodiments are referred to by the same reference numerals as those in the above embodiments. For the sake of simplicity, only the differences between this embodiment and the above embodiments are described below. The difference between this embodiment and the above embodiments is that: As a preferred option, such as Figure 2 As shown, the tank body 1 has several layers along its axial direction, and each layer has several sets of exhaust sections 11 evenly distributed around its circumference.

[0074] As a preferred option, such as Figures 3-4 As shown, each layer of the tank body 1 has N sides evenly distributed around its circumference, and each side is provided with a set of exhaust sections 11, and each set includes M exhaust sections 11 evenly distributed side by side.

[0075] Preferably, each layer of the tank body 1 has N / 2 unlocking modules 4, with each pair of adjacent exhaust sections 11 sharing one unlocking module 4.

[0076] In this embodiment, by arranging multiple layers evenly along the axial direction of the tank body 1, and arranging several exhaust sections 11 evenly along the circumference of each layer, simultaneous instantaneous exhaust explosion in all directions can be achieved, which is more uniform and has a better explosion effect. Furthermore, each layer is matched with several sets of exhaust sections 11 evenly arranged in the circumference and is equipped with an unlocking structure, which can provide a stable and reliable unlocking driving force for each exhaust section 11. The layout is compact and reasonable and suitable for practical applications.

[0077] In one specific implementation, N=4, M=4.

[0078] Example 4 The components in this embodiment that are the same as or corresponding to those in the above embodiments are referred to by the same reference numerals as those in the above embodiments. For the sake of simplicity, only the differences between this embodiment and the above embodiments are described below. The difference between this embodiment and the above embodiments is that: As a preferred option, such as Figure 3 , Figure 8 , Figure 9 as well as Figure 12 As shown, the unlocking module 4 includes an air pipe 41, an air cylinder 42, a hydraulic cylinder 43, an oil pipe 44, and a hydraulic top part 45 connected in sequence. The air inlet of the air pipe 41 is connected to the tank body 1, and the air outlet is connected to the cylinder body of the air cylinder 42. The cylinder bodies of the air cylinder 42 and the hydraulic cylinder 43 are interconnected, and a piston 420 is movably disposed therein. The cross-sectional area of ​​the cylinder body of the air cylinder 42 and the cross-sectional area of ​​the piston 420 inside it are correspondingly larger than the cross-sectional area of ​​the cylinder body of the hydraulic cylinder 43 and the cross-sectional area of ​​the piston 420 inside it. The hydraulic top part 45 includes a hydraulic top 451 and a hydraulic top rod 452 movably disposed in the cylinder body of the hydraulic top 451. The cylinder body of the hydraulic cylinder 43 and the cylinder body of the hydraulic top 451 are connected by the oil pipe 44. The hydraulic top rod 452 extends out of the cylinder body of the hydraulic top 451 and is connected to the locking component 32. A solenoid valve B46 is also provided on the oil pipe 44.

[0079] Preferably, the piston of cylinder 42 and the piston of hydraulic cylinder 43 are rigidly coupled by hydraulic oil, and the piston area of ​​cylinder 43 is larger than that of hydraulic cylinder 43.

[0080] When the unlocking action of the opening and closing mechanism 3 is performed, the unlocking module 4 provides the unlocking driving force, which acts on the locking component 32 of the opening and closing mechanism 3 in the front-back direction, causing the locking component 32 to slide about 5-6mm and thus disengage from the slot 14.

[0081] In this embodiment, the pressure of cylinder 42 comes from the pressure inside the tank and applies pressure to hydraulic cylinder 43. The pressure introduced by cylinder 42 is multiplied after being transmitted to hydraulic cylinder 43. The pressure inside hydraulic cylinder 43 is greater than the pressure inside the tank. As a result, hydraulic top part 45 can easily and quickly push open (create pressure difference) and unlock (after opening and closing component 31 is dislodged from slot 14 without obstruction, an eccentric torque is generated to automatically rotate and pop open the opening and closing component 31 without power). This provides a strong unlocking driving force, similar to the effect of a jack, which fully ensures the instantaneous sliding unlock of opening and closing mechanism 3 and thus ensures the instantaneous opening of exhaust part 11. This effectively avoids the problem of exhaust part failing to open due to insufficient force, which affects the steam explosion effect.

[0082] As a supplementary explanation, such as Figure 12 As shown, the piston of cylinder 42 and the piston of hydraulic cylinder 43 are rigidly coupled through hydraulic oil. Since the piston area of ​​cylinder 42 (cylinder A) is several times larger than the piston area of ​​hydraulic cylinder 43 (hydraulic A), when the piston rod of cylinder 42 applies a thrust to the piston of hydraulic cylinder, according to Pascal's principle, the hydraulic pressure (hydraulic P) in hydraulic cylinder will be amplified proportionally according to the area ratio, ultimately realizing the conversion of the pressure inside the tank to a higher pressure in hydraulic cylinder. The amplification factor is directly determined by the piston area ratio.

[0083] In this embodiment, the core mechanism of the unlocking module 4 lies in the pressure source. It integrates a gas-liquid conversion unit and does not require an external power source. That is, the pressure of the cylinder 42 is directly taken from the inside of the tank 1 without the need for an external power source. Moreover, the pressure is amplified through a purely mechanical structure. After the pressure is amplified, the unlocking force is strong and the action is rapid. It is suitable for quickly unlocking and opening the actuator (i.e., the opening and closing component 31 of the flash explosion device in this embodiment) that relies on the pressure inside the tank to drive the actuator. It has the advantages of rapid response and compact structure, and has no electrical components, which can fully adapt to high temperature and high pressure environments.

[0084] As a preferred implementation, during the pressurization process inside the tank, the system controls the adjustable pressure solenoid valve B46 to pre-release a small pressure on the sealing door, so that the opening and closing mechanism 3 bears the pre-opening force and is in a critical unlocking state. This pre-opening force can eliminate the gap between the force transmission components and reduce the impact force between the components at the moment the sealing door opens. After a few seconds, the pressure is released, so that the sealing door can be rotated and the exhaust section can be opened instantly, achieving instantaneous bursting. That is, after the pressurization inside the tank is completed, the opening and closing mechanism can be quickly unlocked and the exhaust section can be opened instantly.

[0085] When detonation is required, the unlocking module 4 pushes the opening / closing assembly 31 approximately 5mm, disengaging it from the exhaust section 11. At this time, the pressure difference between the inner and outer sides of the opening / closing assembly 31 generates a force, which, combined with the eccentricity of the rotating shaft, forms a torque. Due to the 5mm high limit stop, when the opening / closing assembly 31 moves more than 5mm, the stop fails. Driven by the torque, the rotating shaft 301 drives the sealing section 311 to rotate rapidly, and the exhaust section 11 opens quickly, achieving a highly efficient flash detonation.

[0086] Preferably, the oil pipe 44 includes a main oil pipe 441 and a plurality of branch oil pipes 442 connected to the main oil pipe 441 and matched one-to-one with the opening and closing mechanism 3. The solenoid valve B46 is disposed on the main oil pipe 441. A branch oil cylinder 443 is connected between the main oil pipe 441 and the branch oil pipes 442. The oil outlet end of each branch oil pipe 442 is connected to a hydraulic top part 45.

[0087] Preferably, the oil distribution cylinder 443 of each unlocking module 4 is arranged between the two sets of exhaust sections 11 that are shared. Each oil distribution cylinder 443 is connected to and extended to both horizontal sides with a set of oil distribution pipes 442 that match the set of exhaust sections 11 on that side. Each set of oil distribution pipes 442 includes M oil distribution pipes 442 to match the opening and closing mechanism 3 one by one.

[0088] In a preferred embodiment, the oil distribution cylinder 443 is arranged vertically and the oil distribution pipe 442 is arranged horizontally.

[0089] Preferably, each of the upper and lower sides of the hydraulic cylinder 443 is connected to and extends a set of hydraulic pipes 442, wherein the upper set of hydraulic pipes 442 is matched with the upper position of the opening and closing mechanism 3 to cooperate with the hydraulic top part 45 to provide the driving force for sliding unlocking from the upper part of the opening and closing mechanism 3, and the lower set of hydraulic pipes 442 is matched with the lower position of the opening and closing mechanism 3 to cooperate with the hydraulic top part 45 to provide the driving force for sliding unlocking from the lower part of the opening and closing mechanism 3; correspondingly, the upper and lower parts of the rotating shaft part 301 are respectively connected to a sliding part 321.

[0090] In some embodiments, the slide rails 13 are provided on both sides of the hydraulic jack 451 and the hydraulic jack rod 452 as limiting walls. Their main function is to provide limiting and guiding when the hydraulic jack rod 452 drives the locking component 32 to move. Since the hydraulic jack rod 452 is subjected to a large force, setting the limiting walls can ensure that the hydraulic jack rod 452 drives the locking component 32 to move in a straight line, avoiding damage to the hydraulic jack 451 due to deviation.

[0091] In some embodiments, the solenoid valve B46 is an adjustable hydraulic oil solenoid valve.

[0092] In some embodiments, the pneumatic cylinder 42 and the hydraulic cylinder 43 are an integral structure, and the two together constitute a pneumatic-hydraulic booster cylinder. The pneumatic pipe 11, which communicates with the tank body 1, connects to the pneumatic portion of the pneumatic-hydraulic booster cylinder. The hydraulic cylinder portion is connected to the main oil pipe 441, which sequentially connects to the adjustable hydraulic solenoid valve B46 and the distributor cylinder 443. The distributor cylinder 443 is connected to multiple hydraulic jacks 45 via multi-way distributor pipes 442. The hydraulic jack rods 452 of the hydraulic jacks 45 are connected to the locking assembly 32. In the pneumatic-hydraulic booster cylinder, the piston area inside the pneumatic cylinder is several times the piston area inside the hydraulic cylinder.

[0093] Example 5 The components in this embodiment that are the same as or corresponding to those in the above embodiments are referred to by the same reference numerals as those in the above embodiments. For the sake of simplicity, only the differences between this embodiment and the above embodiments are described below. The difference between this embodiment and the above embodiments is that: As a preferred option, such as Figure 9 As shown, the opening and closing mechanism 3 is provided with a hollow part 313 to balance the left and right pressure difference when the opening and closing mechanism 3 rotates to open the exhaust part 11.

[0094] Preferably, a plurality of the hollowed-out portions 313 are provided at the connection between the rear part of the sealing portion 311 and the pivot portion 301.

[0095] Based on the principles of fluid mechanics, combined with Figure 6 As shown, at the instant the opening and closing mechanism 3 rotates to open the exhaust section 11, a pressure difference is generated on the left and right sides of the opening and closing mechanism 3, and the air pressure on the left side is released first due to the opening of the exhaust section 11. Therefore, the pressure on the left side of the opening and closing mechanism 3 is less than the pressure on the right side, and a negative pressure is formed on the left side. Under this situation, the pressure on the right side acts on the opening and closing mechanism 3, thereby generating resistance to the continued rotation of the opening and closing mechanism 3 and forming rotational resistance. By setting the hollow part 313, the pressure on the left and right sides of the opening and closing mechanism 3 can be made consistent, thereby effectively resolving the rotational resistance caused by the negative pressure.

[0096] At the moment the opening and closing mechanism 3 is opened, the airflow velocity is high on the side near the exhaust section 11 and low on the other side, resulting in negative pressure on the exhaust section 11 side. This causes the opening and closing mechanism 3 to be subjected to a thrust in the direction of the exhaust section 11. To reduce this thrust, the side wall of the opening and closing mechanism 3 is not designed as a single plate, but rather has openings, i.e., hollowed-out portions 313, on the side wall plate.

[0097] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for instantaneous steam explosion driven by internal pressure, characterized in that, Includes the following steps: S1, Feeding and closing the lid: The material cylinder (51) carrying the material to be blasted is placed into the tank body (1) through the material inlet (15) and the lid (52) is closed. In the initial state, each opening and closing mechanism (3) completely closes each exhaust part (11) on the tank body (1) and is in a rotating locked state. S2, Internal pressurization: The gas supply module (2) introduces the high-pressure gas required for the explosion into the tank (1); S3, Sliding unlock: The unlocking module (4) uses the high-pressure gas inside the tank to drive the opening and closing mechanism (3) to slide and release the rotation lock; S4, instantaneous steam explosion: the high pressure difference between the inside and outside of the tank drives the opening and closing mechanism (3) to rotate so as to open the exhaust section (11) instantaneously and synchronously, and the material receiving in the material cylinder (51) is subjected to instantaneous steam explosion operation; S5, Automatic Reset: After the high pressure inside the tank is released, the opening and closing mechanism (3) undergoes elastic self-reset, first rotating in the opposite direction to close the exhaust section (11) again, and then sliding in the opposite direction to restore its rotation lock state; S6, Open the lid and discharge: The material that has been blasted is left in the material cylinder (51), open the lid (52) and take out the material cylinder (51).

2. The method for internal pressure-driven instantaneous steam explosion according to claim 1, characterized in that, In steps S1-S2, the can lid (52) and the opening and closing mechanism (3) are both built inside the can body (1). During the pressurization process inside the can in step S2, the gradual increase in pressure inside the can assists the opening and closing mechanism (3) in fully pressing and sealing the exhaust part (11) and assists the can lid (52) in fully pressing and sealing the material port (15).

3. The method for internal pressure-driven instantaneous steam explosion according to claim 1, characterized in that, In steps S2-S3, during the pressurization process inside the tank in step S2, the unlocking module (4) pre-drives the opening and closing mechanism (3) to slide to a certain extent to the critical unlocking state. When the pressure inside the tank reaches the set value, the unlocking module (4) then drives the opening and closing mechanism (3) to complete the final stroke of sliding to unlock instantly.

4. The method for internal pressure-driven instantaneous steam explosion according to claim 1, characterized in that, In step S3, the unlocking module (4) includes a cylinder (42) and a hydraulic cylinder (43). The piston of the cylinder (42) and the piston of the hydraulic cylinder (43) are rigidly coupled by hydraulic oil, and the piston area of ​​the cylinder (42) is larger than the piston surface of the hydraulic cylinder (43). The pressure of the cylinder (42) comes from the internal pressure of the tank (1) and applies pressure to the hydraulic cylinder (43) in a proportionally amplified manner. Then, the hydraulic cylinder (43) pushes open the opening and closing mechanism (3) to unlock it.

5. The method for internal pressure-driven instantaneous steam explosion according to claim 4, characterized in that, In steps S3-S4, the opening and closing mechanism (3) is eccentrically rotated and installed on the tank (1). The high pressure difference between the inside and outside of the tank (1) is used as the driving force to generate a bending moment, so as to drive the opening and closing mechanism (3) to instantly rotate eccentrically and swing away.

6. The method for internal pressure-driven instantaneous steam explosion according to claim 1, characterized in that, In step S4, the tank (1) has several layers along its axial direction, and each layer is provided with several sets of exhaust parts (11) evenly distributed around its circumference, so as to perform synchronous and uniform steam explosion in the tank (1) along the axial and circumference.

7. An internal pressure-driven instantaneous steam explosion system, characterized in that, include: The tank (1) has a material inlet (15) at the top. The material cylinder (51) enters and exits the tank (1) through the material inlet (15). The tank cover (52) seals the material inlet (15). The tank (1) has several layers along its axial direction. Each layer has several sets of exhaust parts (11) evenly distributed around its circumference. Gas supply module (2), which is connected to the interior of the tank (1) and supplies high-pressure gas required for blasting into the tank (1); The tank body (1) is provided with an opening and closing mechanism (3) that is matched with the exhaust section (11) to close the exhaust section (11), and the opening and closing mechanism (3) is in a rotational locking state when the exhaust section (11) is completely closed; and The unlocking module (4) is provided on each tank body (1) and matched with the opening and closing mechanism (3). The unlocking module (4) is connected to the tank body (1). The high pressure inside the tank drives the opening and closing mechanism (3) to slide to release the rotation lock. Then the high pressure difference inside and outside the tank drives the opening and closing mechanism (3) to rotate to open the exhaust part (11) instantly.

8. The internal pressure driven instantaneous steam explosion system according to claim 7, characterized in that, A rotating groove (12) is provided on the tank (1) on one side of the opening and closing mechanism (3). The opening and closing mechanism (3) is eccentrically rotated relative to the exhaust part (11) and its rotating shaft (301) is biased towards the rotating groove (12). Thus, the opening and closing mechanism (3) is triggered to rotate and slide into the rotating groove (12) due to the high pressure difference between the inside and outside of the tank, so as to open the exhaust part (11).

9. The internal pressure driven instantaneous steam explosion system according to claim 7, characterized in that, The opening and closing mechanism (3) includes: The opening and closing assembly (31) includes a sealing part (311) and a rotating part (301), wherein the rotating part (301) is connected to one of the rear ends of the sealing part (311) to form an eccentric structure. A locking assembly (32) includes a sliding part (321) on which the rotating shaft (301) is rotatably mounted. A slide rail (13) and a slot (14) are provided on the tank body (1). The sliding part (321) is slidably mounted in the slide rail (13). The slot (14) is recessed into the inner side of the exhaust section (11). When subjected to force in the front-rear direction, the sliding part (321) is triggered to slide, causing the sealing section (311) to engage in the slot (14) for rotational locking or to disengage from the slot (14) to release the rotational locking. The elastic element (33) is connected between the tank body (1) and the opening and closing assembly (31). Its elastic force causes the opening and closing assembly (31) to reverse and reset from the rotating slide (12) to close the exhaust part (11) and causes the sealing part (311) to be locked in the slot (14) and pressed against the exhaust part (11).

10. The internal pressure driven instantaneous steam explosion system according to claim 7, characterized in that, Each tank body (1) has N sets of exhaust sections (11) evenly distributed around its circumference, each set including M exhaust sections (11) evenly distributed side by side, and the unlocking module (4) is matched with N / 2, with each two adjacent sets of exhaust sections (11) sharing one unlocking module (4). The unlocking module (4) includes an air pipe (41), an air cylinder (42), a hydraulic cylinder (43), an oil pipe (44), and a hydraulic top part (45) connected in sequence. The air inlet of the air pipe (41) is connected to the tank (1), and the air outlet is connected to the cylinder body of the air cylinder (42). The cylinder bodies of the air cylinder (42) and the hydraulic cylinder (43) are interconnected, and a piston (420) is movably installed inside them. The cross-sectional area of ​​the cylinder body of the air cylinder (42) and the cross-sectional area of ​​the piston (420) inside it are correspondingly larger than those of the hydraulic cylinder (43). The cross-sectional area of ​​the cylinder body and the cross-sectional area of ​​the piston (420) inside it, the hydraulic top part (45) includes a hydraulic top (451) and a hydraulic top rod (452) movably disposed in the cylinder body of the hydraulic top (451), the cylinder body of the hydraulic cylinder (43) and the cylinder body of the hydraulic top (451) are connected by an oil pipe (44), the hydraulic top rod (452) extends out of the cylinder body of the hydraulic top (451) and is connected to the locking assembly (32); a solenoid valve B (46) is also provided on the oil pipe (44).

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