A dissociation device and method for extremely thin interlayered ores

Abstract

The embodiment of the present invention discloses a dissociation device and method for extremely thin interlayered ores, including a pressure switching propulsion assembly, a silo and a collection silo, and a piston assembly and a collision blasting assembly located in the silo, wherein the ore to be dissociated is located in the silo; the pressure switching propulsion assembly can be switched to a first propulsion module and a second propulsion module; when switched to the first propulsion module, the piston assembly moves toward the collision blasting assembly and cooperates to pre-press the ore to be dissociated; when switched to the second propulsion module, the collision blasting assembly explodes, and the second propulsion module propels the ore to be dissociated to complete the dissociation; the maximum pressurization pressure of the first propulsion module is greater than the maximum pressurization pressure of the second propulsion module. The present invention improves the dissociation degree of extremely thin interlayered ores by adopting a complementary method of pre-pressing and low-pressure propulsion, effectively realizes the complete dissociation of target minerals under larger size conditions, reduces the amount of grinding and flotation, and reduces production costs.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of ore crushing and dissociation, and in particular to a dissociation device and a dissociation method for extremely thin interlayered ores. Background Art

[0002] At present, the screening of target minerals is mostly achieved through multi-stage ore crushing + ball milling process. This screening method is to fully dissociate the minerals and extract the target minerals through flotation or reverse flotation.

[0003] However, under the existing multi-stage crushing conditions, when faced with extremely thin interlayered ores (the thinnest layer is only 1-3mm), the multi-stage crushing process often uses primary crushing + cone crushing + 20mm screening to achieve dissociation and obtain ore particles of about 20mm. Since the existing cone crusher equipment cannot meet the needs of further crushing at this small scale, only optical sorting can be used before ball milling. When the optical sorter discards, there is a certain degree of misselection for extremely thin interlayered ores as concentrates or tailings. Some extremely thin interlayered ores enter the concentrate, and some extremely thin interlayered ores enter the tailings. Entering the concentrate will reduce the grade of the concentrate, and entering the tailings will increase the grade of the tailings. Therefore, based on the existing primary crushing + cone crushing technology, the effective dissociation and discarding of extremely thin interlayered ores cannot be well solved.

[0004] Therefore, according to the current dissociation method, it is difficult to completely dissociate the target mineral under large-scale conditions. Therefore, the waste rock that cannot be removed by ore dressing under large-scale conditions can only be removed by ball milling and finally by flotation. This results in a large amount of ore that needs to be processed by ball milling and flotation, which in turn increases the amount of grinding and ore dressing costs.

[0005] Based on this, the present invention is to realize mineral dissociation under larger particle size conditions, remove waste rock, greatly reduce the amount of grinding, and directly reduce the cost of ore processing, which is an effect that needs to be achieved. Summary of the invention

[0006] To this end, an embodiment of the present invention provides a dissociation device and a dissociation method for extremely thin interlayered ores. By adopting a complementary approach of pre-pressing and low-pressure pushing, the dissociation degree of extremely thin interlayered ores is improved, and the target minerals are effectively completely dissociated under larger size conditions, thereby reducing the amount of grinding and flotation, and reducing production costs.

[0007] In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:

[0008] In one aspect of an embodiment of the present invention, a dissociation device for extremely thin interlayered ores is provided, comprising a pressure switching propulsion assembly, a silo and a collection silo which are connected in sequence, a piston assembly being movably provided at one end of the silo close to the pressure switching propulsion assembly, and a resistance blasting assembly being fixedly provided at one end of the silo away from the pressure switching propulsion assembly, and the ore to be dissociated is located in the silo between the piston assembly and the resistance blasting assembly; wherein,

[0009] The pressure switching propulsion assembly can be switched to a first propulsion module and a second propulsion module having different propulsion parameters and being performed sequentially, and at least when the pressure switching propulsion assembly is switched to the second propulsion module, the piston assembly cooperates with the abutment blasting assembly to seal the silo for placing the ore to be separated;

[0010] When the pressure switching propulsion assembly is switched to the first propulsion module, the piston assembly moves toward the abutment blasting assembly and cooperates to pre-press the ore to be dissociated;

[0011] When the pressure switching propulsion assembly is switched to the second propulsion module, the abutment blasting assembly blasts, and the second propulsion module propels the ore to be dissociated to complete the dissociation;

[0012] The maximum pressurization pressure of the first propulsion module is greater than the maximum pressurization pressure of the second propulsion module.

[0013] As a preferred solution of the present invention, the propulsion parameters at least include a pressurized medium.

[0014] As a preferred solution of the present invention, the first propulsion module is a water tank connected to a water supply unit, and its pressurized medium is liquid; the second propulsion module is an air tank connected to an air supply unit, and its pressurized medium is gas.

[0015] As a preferred solution of the present invention, the propulsion parameters also include pressurization pressure.

[0016] As a preferred solution of the present invention, the water tank and the gas tank are respectively connected to a pressure gauge.

[0017] As a preferred solution of the present invention, the maximum pressurization pressure of the first propulsion module is not less than 25 MPa, and the maximum pressurization pressure of the second propulsion module is not less than 3 MPa.

[0018] As a preferred solution of the present invention, the abutment explosion assembly at least comprises a bursting disc fixedly arranged at one end of the silo away from the pressure switching propulsion assembly, a medicine bag installed on the bursting disc, and an extrusion medium providing structure connected to the silo;

[0019] The extrusion medium providing structure is used to fill the silo with extrusion medium.

[0020] As a preferred solution of the present invention, the piston assembly includes a movable plug body close to one end of the pressure switching propulsion assembly, and a rotating cutting disk arranged in the movable plug body toward one end of the abutting blasting assembly;

[0021] The rotary cutting disc comprises a rotary disc structure rotatably connected to the movable plug body, and a plurality of cutting pieces arranged on an end surface of the rotary disc structure facing the abutting blasting assembly.

[0022] As a preferred solution of the present invention, the rotating disk structure comprises a rotating cylinder rotatably clamped on the movable plug body, a movable column movably mounted on the rotating cylinder along the moving direction of the movable plug body, and a mounting plate mounted on one end of the movable column facing the abutting blasting assembly, and the cutting member is located on the mounting plate;

[0023] The rotating cylinder and the movable column are connected via an elastic reset element whose elastic direction is the same as the moving direction of the movable plug body;

[0024] A spiral column is extended from the movable plug body, and a spiral hole that cooperates with the spiral column is at least partially penetrated inward at one end of the movable plug body toward the movable plug body. The spiral column cooperates with the spiral hole so that when the movable plug body and the movable column are relatively close to or away from each other, the movable column rotates relative to the movable plug body.

[0025] As a preferred solution of the present invention, the plurality of cutting elements are formed in a plurality of circles along the circumferential direction on the end surface of the rotating disk structure.

[0026] As a preferred solution of the present invention, both ends of the cutting piece along the circumferential direction are formed as blade surfaces.

[0027] In another aspect of the embodiment of the present invention, a method for dissociating extremely thin interlayered ores is provided, using the above-mentioned dissociation device, and the dissociation method comprises:

[0028] S100, adding the ore to be dissociated into the silo through the piston assembly;

[0029] S200, using the first propulsion module to drive the piston assembly to move, and the piston assembly cooperates with the abutment blasting assembly to pre-press the ore to be dissociated;

[0030] S300, seal the silo and switch to the second propulsion module;

[0031] S400, the impact blasting assembly blasts, and the second propulsion module propels the ore to be dissociated to complete the dissociation.

[0032] As a preferred solution of the present invention, step S400 further includes screening the dissociated ore, and repeating steps S100-S400 for the ore with a particle size of not less than 8 mm after screening.

[0033] As a preferred solution of the present invention, in step S200, the movement of the piston assembly includes at least multiple reciprocating movements, and in two adjacent reciprocating movements, the maximum pressurization pressure of the first propulsion module in the latter reciprocating movement is greater than the maximum pressurization pressure of the first propulsion module in the previous reciprocating movement.

[0034] The present invention adopts the method of pre-pressing + low-pressure pushing, which not only solves the disadvantage of low dissociation degree of existing jaw crusher in processing extremely thin interlayer ore, reduces the problem of high tailings grade after gravity separation and color separation, but also has very low energy consumption. According to cost calculation, the power consumption does not exceed 2 yuan / ton, which is lower than the energy consumption of existing jaw crusher. The key is to achieve efficient dissociation of ore under large particle size conditions, which can be discarded in advance and reduce the amount of ball milling processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] 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.

[0036] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0037] Figure 1 A schematic diagram of the structure of a dissociation device provided in an embodiment of the present invention;

[0038] Figure 2 A cross-sectional view of a piston assembly provided by an embodiment of the present invention;

[0039] Figure 3 A schematic diagram of the structure of a cutting member provided in an embodiment of the present invention;

[0040] Figure 4 A flow chart of a dissociation method provided in an embodiment of the present invention;

[0041] Figure 5 A diagram showing the dissociation effect of an ore provided in an embodiment of the present invention;

[0042] Figure 6 This is a diagram showing the particle size ratio of ore after dissociation under different pre-pressing parameters provided in an embodiment of the present invention.

[0043] In the figure:

[0044] 1-pressure switching propulsion assembly; 2-material bin; 3-collection bin; 4-piston assembly; 5-impact blasting assembly; 6-high-pressure hose; 7-high-pressure valve; 8-high-pressure water pump;

[0045] 11-water tank; 12-gas tank; 13-pressure gauge; 14-gas storage tank; 15-water storage tank; 16-first water injection port; 17-feeding port; 18-second water injection port; 19-gas injection port;

[0046] 41- movable plug body; 42- cutting member; 43- rotating cylinder; 44- moving column; 45- mounting plate; 46- elastic reset element; 47- spiral column; 48- spiral hole; 49- blade surface;

[0047] 51-explosion-proof disk; 52-medicine bag; 53-extrusion medium provides structure. DETAILED DESCRIPTION

[0048] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are 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.

[0049] like Figure 1 As shown, the present invention provides a dissociation device for extremely thin interlayered ores, specifically, it includes: a silo 2, a water silo 11 and a gas silo 12 connected to the silo 2 through high-pressure hoses 6; a piston assembly 4 located on the upper part of the silo 2; a plurality of corresponding high-pressure valves 7 for injecting water or gas into the silo 2, the water silo 11 and the gas silo 12 respectively; a gas storage tank 14 for conveying high-pressure gas to the gas silo 12; a water storage silo 15 for injecting water into the silo 2 and the water silo 11; in addition, a first water injection port 16 and a feed port 17 are formed on the silo 2, a second water injection port is formed on the water silo 11, and a gas injection port 19 is formed on the gas silo 12.

[0050] In actual operation, the silo 2 is used to hold ore; the water tank 11 holds water, and the high-pressure water pump 8 injects water into the water tank 11 to increase the pressure, and the high-pressure water transmitted by the high-pressure hose 6 pushes the piston assembly 4 to pre-extrude and crush the ore.

[0051] The ore to be dissociated is loaded into the silo 2 from the feed port 17, and water is added through the second water injection port 18 to increase the pressure in the water silo 11 to 30 MPa for pre-pressing. When the pressure gauge 13 on the water silo 11 no longer changes, the water injection pre-pressing is completed. It should be noted that the pressure here is not limited to 30 MPa. Theoretically, the higher the pressure here, the better. Of course, from the perspective of cost and pre-pressing effect, it is preferably not less than 25 MPa, and more preferably not less than 30 MPa.

[0052] It should be noted that the pre-pressing here can be further achieved by reciprocating the piston assembly 4 to better achieve multiple impact extrusion. The reciprocating impact extrusion here can control the water pressure in the water tank 11 by combining water injection and water extraction by a water pump, so that the piston assembly 4 can be moved within a certain range based on the adjustment of the pressure in the water tank 11. When the water pressure in the water tank 11 gradually increases, the maximum degree of squeezing of the ore to be dissociated in the silo 2 will be gradually completed. When the water pressure decreases, the ore to be dissociated will rebound and push the piston assembly 4 to move; by repeatedly adjusting the water pressure of the water tank 11 back and forth, multiple reciprocating pre-pressing of the ore to be dissociated can be achieved.

[0053] Furthermore, in order to better crush the ore to be separated during the pre-pressing process, a rotating cutting disc that can rotate during the advancement and movement process is further provided on the piston assembly 4.

[0054] Specifically, Figure 2 and Figure 3As shown, the piston assembly 4 includes a movable plug body 41 at one end close to the pressure switching propulsion assembly, and a rotating cutting disk arranged in the movable plug body 41 toward one end of the resisting blasting assembly; the rotating cutting disk includes a rotating disk structure rotatably connected to the movable plug body 41, and a plurality of cutting members 42 arranged on the end surface of the rotating disk structure toward the resisting blasting assembly. The rotating disk structure includes a rotating cylinder 43 rotatably clamped on the movable plug body 41, a movable column 44 movably installed on the rotating cylinder 43 along the moving direction of the movable plug body 41 (here, the relative movement of the two along the moving direction can be achieved by coordinating the arrangement of the clamping strips and the clamping grooves extending along the moving direction on the rotating cylinder 43 and the movable column 44, which will not be elaborated here), a mounting plate 45 installed in the movable column 44 toward one end of the abutting blasting assembly, and the cutting member 42 is located on the mounting plate 45; the rotating cylinder 43 and the movable column 44 are connected by an elastic reset element 46 whose elastic direction is the same as the moving direction of the movable plug body 41; a spiral column 47 is extended to form on the movable plug body 41, and a spiral hole 48 that cooperates with the spiral column 47 is formed at least partially inwardly through one end of the movable column 44 facing the movable plug body 41, and the spiral column 47 cooperates with the spiral hole 48 so that when the movable plug body 41 and the movable column 44 are relatively close to or away from each other, the movable column 44 rotates relative to the movable plug body 41. A plurality of cutting elements 42 are formed in a plurality of circles along the circumferential direction on the end surface of the rotating disk structure; preferably, both ends of the cutting elements 42 along the circumferential direction are formed as blade surfaces 49 .

[0055] Through the above arrangement, during the movement of the movable plug body 41, when the mounting plate 45 contacts the ore to be dissociated, further squeezing causes the movable column 44 to move along the spiral column 47. At this time, since the spiral column 47 is spiral, a spiral hole 48 cooperating with the spiral column 47 is formed inside the movable column 44, so that relative rotation occurs between the two, so that the movable column 44 rotates relative to the movable plug body 41, and the ore is further effectively crushed by the cutting member 42 during the rotation process.

[0056] After the ore is pre-pressed, an explosion-proof disk 51 with a medicine bag 52 attached is installed at the discharge port of the silo 2 for sealing; the gas silo 12 is filled with gas through the gas injection port 19, and the pressure does not exceed 4MPa. Water is injected into the silo 2 through the first water injection port 16 on the silo 2, and the pressure is 15MPa. Through this pressurization process, a suitable detonation environment is provided for the medicine bag 52.

[0057] After the pre-compression is completed by the water bin 11 , the explosion-proof plate 51 is broken by the detonating charge 52 , and the ore and water in the silo 2 are pushed by the high-pressure gas in the gas bin 12 to quickly rush into the collecting bin 3 .

[0058] The following is a further description of the entire operation steps in conjunction with the accompanying drawings. Figure 4As shown, a flow chart of a specific dissociation method is provided.

[0059] S100, put the ore to be dissociated (specifically, very thin interlayer ore) into the silo 2 through the feed inlet 17, put the piston assembly 4 with the side sealing ring from one end of the feed inlet 17 of the silo 2, install the silo head and the high-pressure hose 6, and connect the other end of the high-pressure hose 6 to the water silo 11;

[0060] S200, use the high-pressure water pump 8 to inject water into the water tank 11 through the second water injection port 18 on the water tank 11 to increase the pressure, and the water pressure is increased to 30MPa. The high-pressure water is transmitted through the high-pressure hose 6 to push the piston assembly 4 to pre-press the ore, and the piston assembly 4 squeezes and crushes the ore; when the value of the pressure gauge 13 on the water tank 11 no longer changes, the water injection pre-pressing is completed;

[0061] S300, after pre-pressing is completed, an explosion-proof disk 51 with a medicine bag 52 attached is installed at one end of the discharge port of the silo 2 to seal the silo 2; at the same time, the connection end of the high-pressure hose 6 and the water silo 11 is removed, and the high-pressure hose 6 is connected to the gas silo 12; water is injected through the first water injection port 16 on the silo 2, and when the pressure reaches 15MPa, the water injection is stopped, and the high-pressure valve 7 on the silo 2 is closed; gas is charged through the gas injection port 19 of the gas silo 12, and when the value of the pressure gauge 13 on the gas silo 12 reaches 4MPa, the high-pressure valve 7 on the gas silo 12 is closed;

[0062] S400, the explosion-proof plate 51 is broken by the detonating charge 52, and the ore and water in the silo 2 are pushed into the collecting silo 3 by the high-pressure gas in the gas silo 12;

[0063] S500, after being screened by an 8 mm sieve, the undissociated ore larger than 8 mm enters the next cycle of dissociation (i.e., the dissociation process of steps S100-S400 is repeated).

[0064] After screening through the 8mm sieve, ores larger than 8mm, including a part of the extremely thin interlayer ore, have been fully dissociated and can be removed by gravity separation. The interlayer ore that has not been dissociated enters the next group of circulation; ores smaller than 8mm are completely dissociated, and 0.5-8mm can be removed by gravity separation. Ores smaller than 0.5mm can be removed by cyclone separation.

[0065] Furthermore, in step S200 here, the high-pressure water pump 8 (which may be a pump group here, and any suitable structure that can realize the function of switching between pumping and injecting water that can be understood by those skilled in the art) can be further set to an operation mode of alternating between the injection state and the pumping state to complete the reciprocating movement of the piston assembly 4, thereby realizing multiple squeezing of the ore to be dissociated. Moreover, based on the setting of the rotating cutting disc that can rotate during the movement, the pre-compression crushing of the ore can be better realized.

[0066] Furthermore, if Figure 5 As shown, it is a rendering of a batch of ores dissociated by the embodiment of the present invention before and after dissociation, wherein the left figure is before dissociation and the right figure is after dissociation. It uses 3000g of raw ore, which is a phosphate ore with black and white stripes, wherein the black stripes are the target mineral apatite, and the white stripes are dolomite, with an interval width of 1-3mm. After the experiment, 569g of undissociated ore, accounting for 18.9%, and the remaining 81.1% are all dissociated.

[0067] In a specific embodiment, different pre-pressing parameters are further set, and the dissociation effect under a plurality of different pre-pressing parameters is further reflected. The specific results are as follows: Figure 6 It should be noted that the preload parameters here only adjust the water pressure, that is, Figure 6 As shown in the figure, it is a schematic diagram of the dissociation results under the pre-pressure parameters of 10MPa, 20MPa, 30MPa and 40MPa, in which multiple broken lines (square, circle, equilateral triangle and inverted triangle) correspond to 10MPa, 20MPa, 30MPa and 40MPa in sequence. According to the results of the scanning electron microscope test, we have learned that the phosphate rock size is completely dissociated when it is 0.5-8mm. According to the curve data, under the pre-pressure of 10MPa, 20MPa, 30MPa and 40MPa, the corresponding 0.5-8mm ore mass accounts for 13.3%, 23.6%, 33.0% and 30.4% respectively. The experimental results confirm the rationality of the pre-pressure of 30MPa.

[0068] The present invention can achieve complete dissociation of particles with a size below 8 mm by coordinating the pre-pressing with the low-pressure pushing, thereby achieving early disposal and reducing the amount of ball milling processing.

[0069] The energy-saving and efficient dissociation equipment for extremely thin interlayer ores can solve the problem of low dissociation degree of extremely thin interlayer ores in the existing jaw crusher, reduce the problem of high tailings grade after gravity separation and color separation, and realize energy-saving and efficient dissociation of extremely thin interlayer ores in a larger particle size range, discard them in advance, and reduce the amount of ball milling processing.

[0070] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A dissociation device for extremely thin interlayered ores, characterized in that: The invention comprises a pressure switching propulsion assembly (1), a silo (2) and a collection silo (3) which are connected in sequence, wherein a piston assembly (4) is movably arranged at one end of the silo (2) close to the pressure switching propulsion assembly (1), and a resistance blasting assembly (5) is fixedly arranged at one end of the silo (2) away from the pressure switching propulsion assembly (1), and the ore to be dissociated is located in the silo (2) between the piston assembly (4) and the resistance blasting assembly (5); wherein: The pressure switching propulsion assembly (1) can be switched to a first propulsion module and a second propulsion module having propulsion parameters that are not completely the same and are performed sequentially, and at least when the pressure switching propulsion assembly (1) is switched to the second propulsion module, the piston assembly (4) cooperates with the abutment blasting assembly (5) to seal the silo (2) for placing the ore to be separated; When the pressure switching propulsion assembly (1) is switched to the first propulsion module, the piston assembly (4) moves toward the abutting blasting assembly (5) and cooperates to pre-press the ore to be dissociated; When the pressure switching propulsion component (1) is switched to the second propulsion module, the abutment blasting component (5) blasts, and the second propulsion module propels the ore to be dissociated to complete the dissociation; The maximum pressurization pressure of the first propulsion module is greater than the maximum pressurization pressure of the second propulsion module.

2. The dissociation device according to claim 1, characterized in that: The propulsion parameters include at least the pressurized medium.

3. The dissociation device according to claim 2, characterized in that: The first propulsion module is a water tank (11) connected to a water supply unit, and its pressurized medium is liquid; the second propulsion module is an air tank (12) connected to an air supply unit, and its pressurized medium is gas.

4. The dissociation device according to claim 3, characterized in that: The propulsion parameters also include boost pressure.

5. The dissociation device according to claim 4, characterized in that: The water tank (11) and the gas tank (12) are each connected to a pressure gauge (13).

6. The dissociation device according to claim 4, characterized in that: The maximum pressurization pressure of the first propulsion module is not less than 25MPa, and the maximum pressurization pressure of the second propulsion module is not less than 3MPa.

7. The dissociation device according to any one of claims 1 to 3, characterized in that: The abutment explosion assembly (5) comprises at least a bursting disc (51) fixedly arranged at one end of the silo (2) away from the pressure switching propulsion assembly (1), a medicine bag (52) mounted on the bursting disc (51), and an extrusion medium providing structure (53) in communication with the silo (2); The extrusion medium supply structure (53) is used to fill the extrusion medium into the silo (2).

8. The dissociation device according to any one of claims 1 to 3, characterized in that: The piston assembly (4) comprises a movable plug body (41) located at one end close to the pressure switching propulsion assembly (1), and a rotating cutting disc arranged in the movable plug body (41) and facing one end of the abutting blasting assembly (5); The rotary cutting disc comprises a rotary disc structure rotatably connected to the movable plug body (41), and a plurality of cutting pieces (42) arranged on the end surface of the rotary disc structure facing the abutting blasting assembly (5).

9. The dissociation device according to claim 8, characterized in that: The rotating disk structure comprises a rotating cylinder (43) rotatably clamped on the movable plug body (41), a movable column (44) movably mounted on the rotating cylinder (43) along the moving direction of the movable plug body (41), and a mounting plate (45) mounted on one end of the movable column (44) facing the abutting blasting assembly (5), and the cutting member (42) is located on the mounting plate (45); The rotating cylinder (43) and the movable column (44) are connected via an elastic reset element (46) whose elastic direction is the same as the moving direction of the movable plug body (41); A spiral column (47) is extended from the movable plug body (41), and a spiral hole (48) that cooperates with the spiral column (47) is at least partially penetrated inwardly at one end of the movable column (44) facing the movable plug body (41). The spiral column (47) cooperates with the spiral hole (48) so that when the movable plug body (41) and the movable column (44) are relatively close to or away from each other, the movable column (44) rotates relative to the movable plug body (41).

10. The dissociation device according to claim 9, characterized in that: The plurality of cutting elements (42) are formed in a plurality of circles along the circumferential direction on the end surface of the rotating disk structure.

11. The dissociation device according to claim 10, characterized in that: Both ends of the cutting piece (42) in the circumferential direction are formed as blade surfaces (49).

12. A method for separating extremely thin interlayered ores, characterized in that: Using the dissociation device according to any one of claims 1 to 11, the dissociation method comprises: S100, adding the ore to be dissociated into the silo through the piston assembly; S200, using the first propulsion module to drive the piston assembly to move, and the piston assembly cooperates with the abutment blasting assembly to pre-press the ore to be dissociated; S300, seal the silo and switch to the second propulsion module; S400, the impact blasting assembly blasts, and the second propulsion module propels the ore to be dissociated to complete the dissociation.

13. The dissociation method according to claim 12, characterized in that: Step S400 also includes screening the dissociated ore, and repeating steps S100-S400 for the ore with a particle size of not less than 8 mm after screening.

14. The dissociation method according to claim 12 or 13, characterized in that: In step S200, the movement of the piston assembly includes at least a plurality of reciprocating movements, and in two adjacent reciprocating movements, the maximum pressurization pressure of the first propulsion module in the latter reciprocating movement is greater than the maximum pressurization pressure of the first propulsion module in the previous reciprocating movement.

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