Mineral dissociation device and method based on high-pressure water unloading and mechanical shock

Abstract

The invention relates to the field of mineral dissociation, in particular to a mineral dissociation device and method based on high-pressure water unloading and mechanical shock, the mineral dissociation device comprises a stock bin, a gas bin and a collision device, the stock bin is used for injecting water and ore and forming a high-pressure water environment, and the gas bin is used for injecting gas and forming a high-pressure water environment; and a piston is arranged between the stock bin and the gas bin, a sealing piece is installed at a discharging port of the stock bin, when the sealing piece is released, the piston pushes water and ore in the stock bin to leave the stock bin, and the ore impacts the collision device in the high-speed moving process. The mineral dissociation method comprises the following steps that ores are arranged in a high-pressure water environment, water permeates into the ores, then environment pressure is rapidly reduced, meanwhile, instantaneous mechanical impact force is applied to the ores, and the ores are dissociated. According to the embodiment of the invention, the dissociation efficiency of the high-pressure gas quick unloading method can be achieved, no gas loss exists in the execution process, and the energy consumption is low.

Description

Technical Field

[0001] The invention relates to the field of mineral dissociation, and in particular to a mineral dissociation device based on high-pressure water unloading and mechanical impact.

[0002] The invention also relates to a mineral dissociation method based on high-pressure water unloading and mechanical impact. Background Art

[0003] Mineral dissociation is the ultimate goal of ore crushing. At present, the traditional multi-stage crushing and ball milling process requires the ore to be crushed to a scale of 74μm or smaller to achieve effective mineral dissociation. According to statistics, the total electricity consumption used for ball milling accounts for 2.8%-3% of the world's total power generation. This high energy consumption problem needs to be solved urgently.

[0004] Currently, there is a crushing method that uses high-pressure gas for rapid unloading. Compared with traditional multi-stage crushing and ball milling methods, it has significant advantages in surface loading: the gas can penetrate into the interior of the ore more evenly, overcome the tensile strength of the ore, and thus achieve more complete mineral dissociation at lower energy consumption.

[0005] On the basis of rapid unloading with high-pressure gas, the displacement method is used to use water to displace the gas between the ores inside the high-pressure chamber, leaving only a small amount of gas that has penetrated into the ore. Compared with the method of relying entirely on gas for unloading, this method greatly reduces energy consumption. At the same time, the small amount of gas remaining in the pores of the ore can still effectively maintain the advantages of mineral dissociation.

[0006] However, the mineral dissociation method using high-pressure gas for rapid unloading still has the problem of high energy consumption. Summary of the invention

[0007] The object of the present invention is to provide a mineral dissociation device and method based on high-pressure water unloading and mechanical impact, which aims to further reduce the energy consumption required for mineral dissociation.

[0008] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0009] The present invention provides a mineral dissociation device based on high-pressure water unloading and mechanical impact, comprising a high-pressure bin and a collision device, wherein the high-pressure bin has a chamber, one end of the chamber is sealed, a sealing member is installed at the other end of the chamber, a piston is installed in the middle of the chamber, and the piston divides the interior of the chamber into a material bin and a gas bin; the material bin is arranged on a side of the piston close to the sealing member, the material bin is used to inject water and ore, and is used to form a high-pressure water environment; a holding device is installed at one end of the material bin close to the sealing member, and the holding device can grasp or release the sealing member, so that the sealing member The component can seal the silo or release the seal of the silo, and when the silo is released, a discharge port is formed at one end of the chamber; the gas bin is arranged on the side of the piston away from the sealing component, and the gas bin is used to inject gas and form a high-pressure gas environment with a pressure lower than that of the silo, and the piston can move along the center line direction of the chamber, so that when the sealing component is released by the retaining device, the piston pushes the water and ore inside the silo to leave the silo; the collision device is arranged on the movement trajectory of the ore leaving the silo, and the ore hits the collision device during high-speed movement.

[0010] Furthermore, the piston cannot leave the silo through the discharge port.

[0011] Furthermore, the discharge port of the high-pressure bin is connected to a collecting bin, and the collision device is installed inside the collecting bin.

[0012] Further, the sealing member comprises a base, a diverter column and a diverter plate, the diverter column is parallel to the axis of the chamber, a plurality of the diverter columns are evenly distributed around the base, the diverter plate is coaxially connected to the base through the diverter column, and the top surface of the diverter plate is a conical surface; the collision device comprises a positioning seat, a collision column and a collision plate, the collision column is parallel to the axis of the chamber, a plurality of the collision columns are evenly distributed around the positioning seat, the collision plate is coaxially connected to the positioning seat through the collision column, the top surface of the collision plate is a conical surface, and a through hole is provided at the center of the collision plate for the sealing member to pass through; the positioning seat is provided on the moving path of the sealing member, and the base stops moving when the base contacts the positioning seat, and the ore that hits the diverter plate hits the collision plate through the guidance of the diverter plate.

[0013] Furthermore, the angle between the diverter plate and the axis of the chamber is 75°-78°, and the angle between the collision plate and the axis of the chamber is 57°-63°.

[0014] Furthermore, the sealing member comprises a plurality of diverter plates, which are evenly spaced along the axial direction of the chamber, and except for the diverter plate farthest from the silo, a through hole for ore to pass through is arranged at the center of each of the other diverter plates, and an area of ​​each through hole gradually decreases from approaching the chamber to away from the chamber; the collision device comprises a plurality of collision plates, the number of the diverter plates and the collision plates is the same and corresponds one to one, and each collision plate is arranged on the movement path of the ore after it hits the corresponding diverter plate.

[0015] Furthermore, the silo includes a feed inlet and a water injection port, the water injection port is sequentially connected to a liquid valve, a water pump and a water storage bin, the silo is also connected to a hydraulic gauge, the water pump is used to inject the water inside the water storage bin into the interior of the silo, and the hydraulic gauge is used to display the water pressure inside the silo; the gas silo includes a gas injection port, the gas injection port is sequentially connected to a gas valve and an air compressor, the gas silo is also connected to a pressure gauge, the air compressor is used to provide high-pressure air to the gas silo, and the pressure gauge is used to display the air pressure inside the gas silo.

[0016] The present invention also provides a mineral dissociation method based on high-pressure water unloading and mechanical impact, comprising the following steps: placing the ore in a high-pressure water environment, allowing the water to penetrate into the interior of the ore, then rapidly reducing the environmental pressure, and simultaneously applying an instantaneous mechanical impact force to the ore to dissociate the ore.

[0017] Furthermore, the dissociation method is performed by a mineral dissociation device, and the mineral dissociation method includes: step one, the holding device grasps the seal to seal the silo, injects water and ore into the interior of the silo, and forms a high-pressure water environment inside the silo, so that water enters the ore along the pores and cracks of the ore; step two, injects gas into the interior of the gas silo, and forms a high-pressure gas environment with a pressure lower than that of the silo inside the gas silo; step three, the holding device releases the seal to unseal the silo, the piston pushes the water and ore inside the silo to leave the silo, and the ore hits the collision device during high-speed movement, and the water that penetrates into the ore can be pulled apart along the mineral interface, so that the ore is dissociated.

[0018] Furthermore, the pressure of the high-pressure water environment is 20-25 MPa, and the pressure of the high-pressure gas environment is 15-20 MPa.

[0019] Compared with the prior art, this application has the following beneficial effects:

[0020] The embodiments of the present invention can achieve the dissociation efficiency of the high-pressure gas rapid unloading method, without gas loss during the execution process and with less energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0022] Figure 1 is a structural block diagram of an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the mineral dissociation effect of an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the sealing member and the collision device inside the collection bin according to an embodiment of the present invention;

[0025] The numbers in the figure represent the following:

[0026] 1-seal; 11-base; 12-diverter column; 13-diverter plate; 2-piston; 3-silo; 31-holding device; 32-discharge port; 33-liquid valve; 34-water pump; 35-water storage tank; 36-hydraulic gauge; 4-gas tank; 41-gas valve; 42-air compressor; 43-air pressure gauge; 5-collision device; 51-positioning seat; 52-collision column; 53-collision plate; 6-collection bin. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In order to further improve the existing mineral dissociation method, the present invention proposes a mineral dissociation method based on high-pressure water unloading and mechanical impact.

[0029] The core technical means of the mineral dissociation method of the present invention is: placing water and ore in a high-pressure environment, allowing water to penetrate into the interior of the ore, and then quickly reducing the environmental pressure, while applying an instantaneous mechanical impact force to the ore to break the ore.

[0030] The principle of this technical means is: when high-pressure water penetrates the ore, the water will enter the interior of the ore along the pores and cracks of the ore, generating a uniform pressure inside the ore, thereby changing the stress state inside the ore. When the high-pressure water is suddenly unloaded, the high pressure gradient will form tensile stress inside the ore. Because the tensile strength of the ore is relatively small, the ore is easily broken under the tensile stress state. At this time, a mechanical impact force is applied to the ore, and the ore can be fully dissociated, that is, the ore will be broken along its existing pores and cracks, thereby achieving a technical effect of efficient dissociation.

[0031] A specific example of a mineral dissociation device and method is provided below. The mineral dissociation device and mineral dissociation method described below are both based on high-pressure water unloading and mechanical impact.

[0032] The mineral separation method is performed by a mineral separation device, referring to Figure 1 The mineral dissociation device includes a high-pressure chamber and a collision device 5. The high-pressure chamber has a chamber, one end of which is sealed, and a seal 1 is installed at the other end of the chamber. A piston 2 is installed in the middle of the chamber, and the piston 2 divides the interior of the chamber into a material bin 3 and a gas bin 4.

[0033] The silo 3 is arranged on a side of the piston 2 close to the seal 1 . The silo 3 is used to inject water and ore and to form a high-pressure water environment so that water enters the interior of the ore along the pores and cracks of the ore.

[0034] A retaining device 31 is installed at one end of the silo 3 close to the seal 1. The retaining device 31 can grasp the seal 1 so that the seal 1 is fixed at the end of the chamber, so that the silo 3 is sealed. The retaining device 31 can also release the seal 1 so that the seal 1 can move along the axial direction of the chamber to release the seal of the silo 3. When the silo 3 is released, a discharge port 32 is formed at one end of the chamber.

[0035] The gas bin 4 is arranged on the side of the piston 2 away from the seal 1. The gas bin 4 is used to inject gas and to form a high-pressure gas environment with a pressure slightly lower than that of the silo 3. The piston 2 can move along the center line direction of the chamber, so that when the seal 1 is released by the retaining device 31, the piston 2 pushes the water and ore inside the silo 3 to leave the silo 3.

[0036] The collision device 5 is arranged on the movement track of the ore leaving the silo 3. The ore hits the collision device 5 during high-speed movement, and the water infiltrated into the ore can be pulled apart along the mineral interface, so that the ore is dissociated under the combined effect of mechanical impact force and rapid unloading.

[0037] Preferably, a stop step (not shown in the figure) is provided inside the silo 3, close to the discharge port 32 of the silo 3, and is used to prevent the piston 2 from leaving the silo 3 through the discharge port 32, thereby preventing gas leakage inside the gas silo 4.

[0038] The mineral dissociation method comprises the following steps:

[0039] Step 1: The holding device 31 grasps the seal 1 to seal the silo 3, and water and ore are injected into the interior of the silo 3 to form a high-pressure water environment inside the silo 3. The pressure value of the high-pressure water environment is preferably 20-25 MPa, so that water enters the interior of the ore along the pores and cracks of the ore.

[0040] Step 2: Inject gas into the gas bin 4 to form a high-pressure gas environment with a pressure slightly lower than that of the silo 3. The pressure value of the high-pressure gas environment is preferably 15-20 MPa.

[0041] Step 3: The retaining device 31 releases the seal 1, so that the silo 3 is unsealed, and the piston 2 pushes the water and ore inside the silo 3 to leave the silo 3. The ore hits the collision device 5 during high-speed movement, and the water that penetrates into the ore can be pulled apart along the mineral interface, so that the ore is dissociated.

[0042] The advantages of the mineral dissociation method are:

[0043] First, due to the incompressibility of water, it only takes less energy to form a high-pressure water environment inside the silo 3. Compared with the traditional technical means of forming a high-pressure gas environment, this embodiment can greatly reduce energy consumption.

[0044] Second, since the gas inside the gas bin 4 has no way to overflow, the piston 2 pushes the water and ore inside the silo 3 to leave the silo 3, resulting in only a slight drop in the gas pressure inside the silo 4 after the volume of the silo 4 is expanded. It only takes less energy to restore the high-pressure gas environment of the silo 4, and no gas needs to be replenished.

[0045] 3. Reference Figure 2 The dissociation efficiency of ore under the combined effect of mechanical impact force and rapid unloading can reach the dissociation efficiency of high-pressure gas rapid unloading method with higher energy consumption and more gas loss.

[0046] Preferably, in order to facilitate production and maintenance, the high-pressure bin is a split structure, that is, the material bin 3 and the gas bin 4 are two independent bins, respectively, and the gas bin 4 and the material bin 3 are connected by a high-pressure hose, so that any one of them can be independently maintained and replaced.

[0047] The silo 3 includes a first water injection port and a second water injection port.

[0048] The first water injection port is arranged on the side of the silo 3 and is located between the stop step and the seal 1. When liquid is injected into the interior of the silo 3 through the first water injection port, the piston 2 can be pushed to move toward the gas silo 4, thereby compressing the high-pressure gas and realizing the resetting of the piston 2.

[0049] Preferably, another retaining device is provided inside the silo 3 (the retaining device is not shown in the figure), which is provided between the first water injection port and the gas bin 2, and is used to grasp the piston 2 after the piston 2 is reset, so that the piston 2 is fixed at one end of the silo 3 close to the gas bin 2. At this time, the user can empty the water inside the silo 3, and then fill the silo 3 with ore through the discharge port 32, and finally use the seal 1 to seal the discharge port 32.

[0050] The second water injection port is arranged on the side of the silo 3 and is located between the gas bin 2 and the stop step. The second water injection port is sequentially connected to the liquid valve 33, the water pump 34 and the water storage bin 35. The silo 3 is also connected to the hydraulic gauge 36. The water pump 34 is used to inject the water inside the water storage bin 35 into the silo 3. The hydraulic gauge 36 is used to display the water pressure inside the silo 3. The second water injection port is used to inject high-pressure water into the middle position of the silo 3 to maintain a high-pressure water environment inside the silo 3.

[0051] The gas bin 4 includes a gas injection port, which is sequentially connected to a gas valve 41 and an air compressor 42 via a high-pressure hose. The gas bin 4 is also connected to a pressure gauge 43. The air compressor 42 is used to provide high-pressure air to the gas bin 4. The pressure gauge 43 is used to display the air pressure inside the gas bin 4.

[0052] Preferably, in order to facilitate the collection of ore, the discharge port 32 of the high-pressure bin is connected to the collection bin 6, and the collision device 5 is installed inside the collection bin 6. The ore and water are pushed by the piston 2 into the collection bin 6 and then collide with the collision device 5 here.

[0053] Preferably, the axis of the chamber is arranged vertically, and the discharge port 32 is arranged at the bottom of the high-pressure bin, so that the water and ore can move vertically downward when leaving the bin 3, thereby ensuring that the impact device is located on the movement path of the ore.

[0054] Furthermore, since the seal 1 moves synchronously with the water and the ore, the seal 1 will also collide with the collision device 5, thereby hindering the ore from hitting the collision device 5. In order to solve this problem, the seal 1 is improved as follows.

[0055] refer to Figure 3 A blind hole capable of accommodating the seal 1 is provided at the center of the collision device 5 , so that after the seal 1 leaves the silo 3 along with the water and the ore, the seal 1 can be embedded in the blind hole and stop moving, and at this time the collision device 5 surrounds the seal 1 .

[0056] The seal 1 includes a base 11, a diverter column 12 and a diverter plate 13. The diverter column 12 is parallel to the axis of the chamber. A plurality of diverter columns 12 are evenly distributed around the base 11. The diverter plate 13 is coaxially connected to the base 11 through the diverter column 12. The top surface of the diverter plate 13 is a conical surface. The angle of the diverter plate 13 relative to the axis of the chamber is 75°-78°. When the axis of the chamber is vertical, the angle of the diverter plate 13 relative to the horizontal plane is 12°-15°.

[0057] After the ore hits the diverter plate 13 , it moves around the diverter plate 13 and then hits the collision device 5 , thereby solving the problem that the seal 1 hinders the ore from hitting the collision device 5 .

[0058] Furthermore, the collision device 5 includes a positioning seat 51, a collision column 52 and a collision plate 53. The collision column 52 is parallel to the axis of the chamber. A plurality of collision columns 52 are evenly distributed around the positioning seat 51. The collision plate 53 is coaxially connected to the positioning seat 51 through the collision column 52. The top surface of the collision plate 53 is a conical surface. A through hole is provided at the center of the collision plate 53 for the seal 1 to pass through. The angle of the collision plate 53 relative to the axis of the chamber is 57°-63°. When the axis of the chamber is vertical, the angle of the collision plate 53 relative to the horizontal plane is 27°-33°.

[0059] The positioning seat 51 is arranged on the moving path of the seal 1 . When the base 11 contacts the positioning seat 51 , the base 11 stops moving. At this time, the ore hitting the diverter plate 13 hits the collision plate 53 under the guidance of the diverter plate 13 .

[0060] Preferably, the base 11 has a considerable weight, so that the base 11 can maintain its own posture during the movement, and the base 11 will not overturn when the diverter plate 13 is hit by the ore.

[0061] Preferably, the holding device 31 includes a plurality of movable blocks. When the blocks are connected to the base 11 , the sealing member 1 is gripped by the holding device 31 , and the silo 3 is sealed.

[0062] Preferably, in order to improve the efficiency of ore diversion and collision, the diverter plate 13 and the collision plate 53 are both designed as a multi-stage structure.

[0063] The seal 1 includes a plurality of diverter plates 13, which are evenly spaced along the axial direction of the chamber, and except for the diverter plate 13 farthest from the silo 3, a through hole for the ore to pass through is provided at the center of each of the other diverter plates 13, and the area of ​​each through hole gradually decreases along the direction from close to the chamber to far away from the chamber.

[0064] The collision device 5 includes a plurality of collision plates 53 . The number of the diverter plates 13 and the collision plates 53 are the same and correspond one to one. Each collision plate 53 is arranged on the movement path of the ore after it hits the corresponding diverter plate 13 .

[0065] The ore close to the axis of the chamber and the ore far from the axis of the chamber collide with different diverter plates 13 respectively, and finally collide with different collision plates 53, thereby improving the efficiency of ore diversion and collision, and further improving the dissociation efficiency of the ore.

[0066] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A mineral dissociation device based on high-pressure water unloading and mechanical impact, characterized in that: The high-pressure chamber comprises a high-pressure chamber and a collision device (5), wherein the high-pressure chamber has a chamber, one end of the chamber is sealed, a sealing member (1) is installed at the other end of the chamber, a piston (2) is installed in the middle of the chamber, and the piston (2) divides the interior of the chamber into a material chamber (3) and a gas chamber (4); The silo (3) is arranged on a side of the piston (2) close to the sealing element (1), and the silo (3) is used to inject water and ore and to form a high-pressure water environment; A holding device (31) is installed at one end of the silo (3) close to the sealing member (1), and the holding device (31) is capable of grasping or releasing the sealing member (1), so that the sealing member (1) can seal the silo (3) or release the seal of the silo (3); when the silo (3) is released, a discharge port (32) is formed at one end of the chamber; The gas bin (4) is arranged on a side of the piston (2) away from the sealing element (1), and the gas bin (4) is used to inject gas and to form a high-pressure gas environment with a pressure lower than that of the silo (3). The piston (2) can move along the center line direction of the chamber, so that when the sealing element (1) is released by the retaining device (31), the piston (2) pushes the water and ore inside the silo (3) to leave the silo (3); The collision device (5) is arranged on the movement track of the ore leaving the silo (3), and the ore collides with the collision device (5) during high-speed movement.

2. A mineral dissociation device based on high-pressure water unloading and mechanical impact according to claim 1, characterized in that: The piston (2) cannot leave the silo (3) through the discharge port (32).

3. The mineral dissociation device based on high-pressure water unloading and mechanical impact according to claim 1 is characterized in that: The discharge port (32) of the high-pressure bin is connected to a collecting bin (6), and the collision device (5) is installed inside the collecting bin (6).

4. A mineral dissociation device based on high-pressure water unloading and mechanical impact according to claim 1 or 3, characterized in that: The sealing element (1) comprises a base (11), a flow dividing column (12) and a flow dividing plate (13), wherein the flow dividing column (12) is parallel to the axis of the chamber, a plurality of the flow dividing columns (12) are evenly distributed around the base (11), the flow dividing plate (13) is coaxially connected to the base (11) through the flow dividing column (12), and the top surface of the flow dividing plate (13) is a conical surface; The collision device (5) comprises a positioning seat (51), a collision column (52) and a collision plate (53), wherein the collision column (52) is parallel to the axis of the chamber, a plurality of the collision columns (52) are evenly distributed around the positioning seat (51), the collision plate (53) is coaxially connected to the positioning seat (51) through the collision column (52), the top surface of the collision plate (53) is a conical surface, and a through hole is provided at the center of the collision plate (53) for the sealing member (1) to pass through; The positioning seat (51) is arranged on the moving path of the sealing element (1); when the base (11) contacts the positioning seat (51), the base (11) stops moving, and the ore that hits the diverter plate (13) hits the collision plate (53) under the guidance of the diverter plate (13).

5. The mineral dissociation device based on high-pressure water unloading and mechanical impact according to claim 4 is characterized in that: The included angle of the diverter plate (13) relative to the axis of the chamber is 75°-78°, and the included angle of the collision plate (53) relative to the axis of the chamber is 57°-63°.

6. The mineral dissociation device based on high-pressure water unloading and mechanical impact according to claim 4 is characterized in that: The sealing member (1) comprises a plurality of diverter plates (13), the plurality of diverter plates (13) being equally spaced along the axial direction of the chamber, and except for the diverter plate (13) farthest from the silo (3), a through hole for ore to pass through is arranged at the center of each of the other diverter plates (13), and the area of ​​each through hole gradually decreases along the direction from approaching the chamber to away from the chamber; The collision device (5) comprises a plurality of collision plates (53), the number of the diverter plates (13) and the collision plates (53) being the same and corresponding one to one, and each collision plate (53) being arranged on a movement path of the ore after it collides with the corresponding diverter plate (13).

7. The mineral dissociation device based on high-pressure water unloading and mechanical impact according to claim 1 is characterized in that: The silo (3) comprises a material inlet and a water injection port, the water injection port is sequentially connected to a liquid valve (33), a water pump (34) and a water storage bin (35), the silo (3) is also connected to a hydraulic gauge (36), the water pump (34) is used to inject water inside the water storage bin (35) into the silo (3), and the hydraulic gauge (36) is used to display the water pressure inside the silo (3); The gas bin (4) comprises a gas injection port, which is sequentially connected to a gas valve (41) and an air compressor (42). The gas bin (4) is also connected to a pressure gauge (43). The air compressor (42) is used to provide high-pressure air to the gas bin (4), and the pressure gauge (43) is used to display the air pressure inside the gas bin (4).

8. A mineral dissociation method based on high-pressure water unloading and mechanical impact, characterized in that: The following steps are involved: The ore is placed in a high-pressure water environment to allow water to penetrate into the interior of the ore, and then the environmental pressure is quickly reduced. At the same time, a momentary mechanical impact force is applied to the ore to dissociate the ore.

9. The method for mineral dissociation based on high-pressure water unloading and mechanical impact according to claim 8, characterized in that: The dissociation method is performed by a mineral dissociation device according to any one of claims 1 to 7, and the mineral dissociation method comprises: Step 1: The holding device (31) grasps the sealing member (1) to seal the silo (3), injects water and ore into the silo (3), and forms a high-pressure water environment inside the silo (3), so that water enters the ore along the pores and cracks of the ore; Step 2, injecting gas into the interior of the gas bin (4), and forming a high-pressure gas environment inside the gas bin (4) with a pressure lower than that of the material bin (3); Step 3: The retaining device (31) releases the seal (1), so that the silo (3) is unsealed, and the piston (2) pushes the water and ore inside the silo (3) to leave the silo (3). The ore hits the collision device (5) during high-speed movement, and the water that has penetrated into the ore can be pulled apart along the mineral interface, so that the ore is dissociated.

10. The method for mineral dissociation based on high-pressure water unloading and mechanical impact according to claim 9, characterized in that: The pressure of the high-pressure water environment is 20-25 MPa, and the pressure of the high-pressure gas environment is 15-20 MPa.

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