Micro-vortex reinforced fine mineral size mixing device

Abstract

The invention discloses a micro-vortex reinforced micro-fine mineral size mixing device, and relates to the technical field of micro-fine mineral size mixing flotation treatment.The micro-vortex reinforced micro-fine mineral size mixing device comprises a rotary drum, the upper end of the rotary drum is sealed and connected with a variable frequency motor through a coupler and a transmission shaft, and the rotary drum is integrally arranged in a cylinder and is coaxial with the cylinder; the tooth-shaped dispersing part is arranged at the upper part of the rotary drum and is used for dispersing ore pulp; the reverse-rotation turbulent flow piece is arranged at the lower part of the tooth-shaped dispersing piece and is used for generating a micro-vortex area to strengthen pulp mixing; the flow restraining piece is arranged on the lower portion of the reverse rotating flow disturbing piece and used for further enhancing particle movement and preventing ore pulp from passing too fast. And the multi-channel fine modification part is arranged at the lower part of the rotary drum and is used for dispersing the ore pulp to each channel and performing fine modification. Through the combination of the tooth-shaped dispersing piece, the reverse-rotation turbulent flow piece, the flow restraining piece and the multi-channel fine modification piece, fine pulp mixing of ore pulp is achieved, and the problems that kinetic energy of fine mineral particles in a conventional pulp mixing flow field is insufficient, and adhesion of fine silt is difficult to break through are effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of fine-grained mineral slurry adjustment and flotation processing, and more particularly to a micro-vortex-enhanced fine-grained mineral slurry adjustment device. Background Art

[0002] With the increasing depletion and large-scale consumption of high-quality mineral resources, the recovery of fine minerals will undoubtedly become a key strategic resource recovery area in the future. Taking coal slime fine recovery as an example, fine coal slime has a small particle size and a large specific surface area, making it susceptible to adhesion by heterogeneous fine mud. This affects the adsorption of collectors on the coal slime particles, hindering the effective hydrophobic modification of the mineral particle surface by the collectors. In conventional slurry mixing flow fields, fine mineral particles struggle to extract effective kinetic energy from the flow field, making it difficult for their motion to break through the adhesion of fine mud, thus preventing the exposure of the original reagent adsorption points on their surfaces.

[0003] It can be seen that fine mineral particles have the basic physical properties of large specific surface area and small particle size. In the flow field of conventional slurry adjustment, the macro-turbulence dissipation rate is low, making it difficult to effectively transfer its own turbulent kinetic energy to the fine mineral particles. As a result, the kinetic energy of the fine particles themselves is relatively low, and it is difficult for the heterogeneous fine mud adhering to the surface of the particles to achieve the purpose of stripping through its own enhanced movement. After the original hydrophobic sites on the surface of the fine mineral particles are adhered by the fine mud, it is difficult for the collector droplets to adsorb on their surface, thereby affecting the slurry adjustment effect. However, the small-scale turbulent eddies in the flow field can achieve efficient slurry adjustment of fine mineral particles. Through the efficient dissipation of the kinetic energy of the flow field fluid movement, the fine mud adhesion is forced to be stripped, promoting the adsorption of the reagent on the particle surface, and achieving the purpose of improving the recovery of fine minerals.

[0004] Therefore, it is an urgent problem for technical personnel in this field to propose a micro-vortex enhanced fine mineral slurrying device to achieve fine slurrying of the ore slurry, guide the extensive operation to a refined and grouped slurrying method, and then achieve efficient slurrying of fine minerals. Summary of the Invention

[0005] In view of this, the present invention provides a micro-vortex enhanced fine mineral slurry adjustment device, which adopts narrow channels, segmented slurry adjustment, fluid enhancement and secondary dosing to enhance the adsorption of fine mineral particles, thereby achieving fine slurry adjustment of fine minerals.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A micro-vortex enhanced fine mineral slurry mixing device, comprising:

[0008] A cylinder, wherein the inner wall of the cylinder is lined with a wear-resistant material;

[0009] The upper portion of the rotating drum is a hollow cylindrical structure, the upper end of which is sealed and connected to the variable frequency motor through a coupling and a transmission shaft. The rotating drum is arranged as a whole inside the cylinder and is coaxial with the cylinder;

[0010] a tooth-shaped dispersing member, which is arranged on the upper part of the rotating drum and is used to disperse the slurry;

[0011] a reverse vortex spoiler, which is arranged at the lower part of the tooth-shaped disperser and is used to generate a micro-vortex zone to enhance slurry preparation;

[0012] A flow suppressor, arranged below the reverse-rotating flow spoiler, for further enhancing particle movement and preventing the slurry from passing through too quickly;

[0013] A multi-channel fine reforming member is arranged at the lower part of the drum and is used to disperse the slurry into various channels and perform fine reforming.

[0014] Through the above technical scheme, the present invention realizes the fine slurry adjustment through the combination of tooth-shaped dispersers, counter-rotating spoilers, flow suppression parts and multi-channel fine modification parts, effectively solving the problem of insufficient kinetic energy of fine mineral particles in conventional slurry adjustment flow fields and difficulty in breaking through fine mud adhesion; the rotating drum and its accessories can be combined with the cylinder to form an independent slurry adjustment system, which is convenient for installation, debugging and maintenance, and improves the flexibility and maintainability of the equipment; the turbulent micro-vortex and turbulent cascade effects are utilized to enhance the hydrophobic modification effect of the particle surface and improve the adsorption efficiency of the reagent and mineral particles.

[0015] Preferably, in the above-mentioned micro-vortex enhanced fine mineral slurry mixing device, a first flange and two feed ports are provided at the upper end of the cylinder, the flange cover is sealed with the cylinder through the first flange, and a compressed gas inlet and an emulsifier inlet are provided on the upper part of the flange cover, and the compressed gas inlet is facing the modification area inside the cylinder.

[0016] Two feed ports at the top of the cylinder improve slurry input efficiency and facilitate mixing of slurries from different sources. The compressed gas inlet and the emulsifying agent inlet precisely control the amount of agent and gas added, optimizing slurry mixing and minimizing agent waste. The flange cover is sealed to the cylinder, ensuring a tight seal and preventing slurry leakage and gas escape.

[0017] Preferably, in the above-mentioned micro-vortex enhanced fine mineral slurry mixing device, the tooth-shaped dispersing member is a sawtooth structure, the width of the tooth-shaped dispersing member is smaller than the inner diameter of the cylinder, and the angle between the sawtooth side surface one and the side surface two of the tooth-shaped dispersing member is 60 degrees.

[0018] The serrated structure of the toothed disperser effectively disperses agglomerated particles in the slurry, improving slurry uniformity. The 60-degree angle allows the dispersed particles ample time and space to disperse, further enhancing the dispersion effect. The width of the toothed disperser is smaller than the inner diameter of the cylinder, ensuring compatibility with cylinders of varying sizes.

[0019] Preferably, in the above-mentioned micro-vortex enhanced fine mineral slurry mixing device, the reverse rotation spoiler is composed of a plurality of spoiler blocks, each spoiler block is composed of an arc surface, a narrow side facade, a wide side facade, an outer side surface, an upper plane and a lower plane, the narrow side facade and the wide side facade are arranged alternately, and the width of the wide side facade is twice the width of the narrow side facade.

[0020] Through the staggered arrangement of narrow side facades and wide side facades, the spoiler can form multiple micro-vortex zones when rotating. The bubbles produce cavitation in the micro-vortex zones, which can clean the mineral surface and enhance the turbulence intensity of the slurry.

[0021] Specifically, the reverse-rotating spoiler is composed of a plurality of spoiler blocks, each of which has a narrow side facade and a wide side facade, and the narrow side facades and the wide side facades are arranged alternately. When the drum drives the reverse-rotating spoiler to rotate at high speed, the slurry flows between the narrow side facade and the wide side facade of the spoiler block. Since the width of the wide side facade is twice the width of the narrow side facade, this size difference causes the fluid to form a velocity gradient between the wide side facade and the narrow side facade. Under the action of this velocity gradient, the fluid forms a micro-vortex zone in the area between the wide side facade and the narrow side facade. The micro-vortex zone is a locally rotating vortex area in the fluid, which is small in size but has a high rotation speed and shear force.

[0022] The fluid in the micro-vortex zone has a high shear force and turbulence intensity, which can strongly shear and disperse the particles in the slurry. When bubbles are subjected to strong shear forces in the micro-vortex zone, cavitation will occur. Cavitation refers to the process of rapid growth and rupture of bubbles under the alternating action of high and low pressure (in the micro-vortex zone, due to the high-speed rotation and shearing action of the fluid, the local pressure will drop rapidly. When the pressure drops below the saturated vapor pressure of the fluid, the gas in the fluid will quickly escape to form bubbles. As the fluid pressure recovers, these bubbles will quickly burst. At the moment of bubble rupture, local high pressure and high temperature will be generated. This phenomenon is called cavitation. The local high pressure generated by cavitation can strongly impact the mineral surface and remove fine mud and impurities attached to the surface. This is especially important for fine mineral particles, because the surface of these particles is easily adhered by heterogeneous fine mud, affecting the adsorption effect of the agent. Through cavitation, the original hydrophobic sites on the mineral surface can be exposed, thereby improving the adsorption efficiency of the agent on the mineral surface). When the bubbles burst, they generate localized high pressure and temperature. This instantaneous high pressure can "clean" the mineral surface, removing impurities and fine mud attached to the surface. The presence of the micro-vortex zone increases the turbulence of the slurry, increasing the frequency of collisions between particles, thereby enhancing the activation effect of the particle surface and creating better conditions for subsequent reagent adsorption.

[0023] The strong turbulence zone formed by the wide side edges during high-speed rotation further enhances the effective collision between the atomized reagent and the particles, improving the reagent's adsorption efficiency. The staggered arrangement and size design of the spoiler blocks enable the slurry to obtain a more effective slurry adjustment effect when flowing through the counter-rotating spoiler.

[0024] Specifically, when the broadside vertical edge of the counter-rotating spoiler rotates at high speed, its large size and velocity gradient create a highly turbulent zone at its tail. This zone is an area of ​​extremely high turbulence in the fluid, characterized by high shear forces and mixing capabilities. Within this zone, the fluid's motion becomes more complex and disordered, and the frequency of particle collisions increases significantly.

[0025] In areas of high turbulence, the probability of collision between the atomized agent and mineral particles is greatly increased. The agent can more effectively contact the surface of the mineral particles, thereby improving its adsorption efficiency. Through the shear and collision effects of high turbulence, the agent can be better dispersed in the slurry, further enhancing the interaction between the agent and the mineral particles and promoting the agent's adsorption and modification on the particle surface.

[0026] Preferably, in the above-mentioned micro-vortex enhanced fine mineral slurry mixing device, the flow suppression component is a multi-layer circular ring structure, including a flow blocking ring, distribution teeth and a paddle, the flow blocking ring is welded on the outer wall of the rotating drum, the paddle is vertically welded to the flow blocking ring, and the distribution teeth are welded on the outside of the paddle.

[0027] The multi-layered, annular structure of the flow suppressor effectively cuts and disperses the slurry, preventing it from flowing through too quickly and prolonging its residence time in the reforming zone. The design of the paddles and distribution teeth further enhances particle movement and increases the frequency of particle collisions, facilitating the removal of fine mud and the adsorption of reagents. The flow suppressor is welded to the outer wall of the drum, enhancing the structural stability of the entire flow suppressor.

[0028] Preferably, in the above-mentioned micro-vortex enhanced fine mineral slurry mixing device, the multi-channel fine modification component includes an outer cylinder, a partition, a drop plate and an umbrella-shaped dispersion bottom, multiple layers of the partition are installed inside the outer cylinder, and diversion channels are formed between adjacent partitions, and the drop plates are arranged in a cross-ring on both sides of the partition.

[0029] The multi-channel fine modification unit uses partitions and drop plates to divide the slurry into multiple streams, increasing the flow path and improving the uniformity and efficiency of slurry preparation. The drop plates create a back-and-forth flow pattern for the slurry, further enhancing the collision and dispersion of particles. The multi-channel fine modification unit is connected to the cylinder via a flange, facilitating modular assembly and disassembly, enhancing the flexibility and maintainability of the equipment.

[0030] Preferably, in the above-mentioned micro-vortex enhanced fine mineral slurry mixing device, the umbrella-shaped dispersion bottom is welded to the bottom side wall of the outer cylinder through reinforcing ribs as a whole, and the diameter of the umbrella-shaped dispersion bottom is the same as the diameter of the outer cylinder.

[0031] The umbrella-shaped dispersion bottom is welded to the outer cylinder via reinforcing ribs, enhancing structural stability while evenly dispersing the slurry around the buffer tank, further extending the slurry's passage time. The umbrella-shaped dispersion bottom design ensures uniform slurry distribution, preventing localized excessive slurry concentration and improving slurry adjustment efficiency.

[0032] Preferably, in the above-mentioned micro-vortex enhanced fine mineral slurry mixing device, the bottom of the rotating drum is a conical bottom cone, and the rotating drum and the tooth-shaped disperser, the reverse rotation spoiler and the flow suppression member thereon are combined into an independent slurry mixing system.

[0033] The drum and its accessories can be combined into an independent slurry mixing system, which is convenient for integration with other equipment or use alone, improving the applicability and flexibility of the equipment. The conical bottom cone design helps to evenly distribute and flow the slurry, further improving the slurry mixing efficiency.

[0034] Preferably, in the above-mentioned micro-vortex enhanced fine mineral slurry mixing device, the multi-channel fine modification component is connected to the second flange at the lower end of the cylinder through a third flange, and the multi-channel fine modification component is placed as a whole in the shrinkage barrel, and the shrinkage barrel is connected to the buffer barrel through an upper cover.

[0035] The multi-channel fine modification unit is connected to the cylinder via flanges, ensuring the integrity of the equipment while facilitating modular assembly and disassembly, improving its flexibility and maintainability. The design of the contraction barrel and buffer barrel provides a buffer space for the slurry, further optimizing the slurry flow state and enhancing the slurry adjustment effect.

[0036] Preferably, in the above-mentioned micro-vortex enhanced fine mineral slurry mixing device, a flow arc plate is provided at the terminal end of the inner wall of the buffer barrel, a secondary compressed gas pipe and a secondary emulsifying agent pipe are provided on the outer wall of the buffer barrel, and the bottom of the buffer barrel is a conical structure, the bottom of the barrel is connected to the slurry outflow pipe, and the middle of the slurry outflow pipe is connected to a pointed cone through a connecting rod.

[0037] The design of the secondary compressed gas and emulsifier pipes allows for secondary reagent addition within the buffer tank, further optimizing slurry adjustment. The tapered bottom and pointed cone design facilitate slurry collection and further dispersion, ensuring uniform slurry outflow. The curved lift plate and support feet enhance the structural stability of the buffer tank while optimizing the slurry flow path.

[0038] It can be seen from the above technical solutions that, compared with the prior art, the present invention provides a micro-vortex enhanced fine mineral slurry mixing device, which has the following beneficial effects:

[0039] 1. The present invention provides a slurry preparation device that uses narrow-channel circulation and high-shear slurry preparation to achieve thinning and fine slurry preparation. The cylinder, rotating drum, and multi-channel fine modification components of this system can be combined into a single unit and used in conjunction with an existing slurry preparation device. Mounted on top of the slurry preparation device, the slurry flows directly from the umbrella-shaped dispersion bottom into the slurry preparation device for mixing and slurry preparation. Alternatively, this device can be used as a standalone slurry preparation system.

[0040] 2. The main body of the present invention is a rotating drum structure. The toothed dispersers, counter-rotating spoilers, flow suppressors and other structures installed on the rotating drum can cut, disperse and scrub the slurry flowing in from the top in sequence, and generate turbulent micro-vortices of different sizes from top to bottom, thereby utilizing the turbulent cascade effect in the turbulent process to enhance the hydrophobic modification effect on the surface of the particles.

[0041] 3. The rotating drum and its accessories in the present invention, such as the toothed disperser, the reverse-rotating spoiler, the flow suppressor and other structures, as well as the cylinder, can be combined together to form an independent slurry mixing system, so that the system can be debugged, installed and maintained in a modular manner.

[0042] 4. The toothed dispersing member of the present invention has a sawtooth structure, which can fully disperse the slurry and the agglomerated particles in the slurry when rotating at high speed. In addition, the sawtooth structure of a certain height can ensure that the particles have sufficient time and space to disperse.

[0043] 5. The staggered arrangement of the narrow side elevations and the wide side elevations of each spoiler block in the counter-rotating spoiler of the present invention further enhances the effective collision between the atomized agent and the particles by utilizing the micro-vortex zone surrounded by the narrow side elevations and the wide side elevations and the strong turbulence zone formed at the tail by the edges of the wide side elevations during high-speed rotation.

[0044] 6. The flow suppression components in the present invention are arranged in multiple layers in order to further enhance the movement of particles. The flow-blocking ring has a certain radial width. The multi-layer arrangement is intended to thin the slurry into layers, which is beneficial for dispersion and collision. Another purpose is to prevent the slurry from passing through the reforming zone too quickly. The reforming zone is a relatively narrow annular channel, and the area between the cylinder and the rotating drum all belongs to the reforming zone.

[0045] 7. The multi-channel fine modification part in the present invention is a relatively independent structure, which can be connected to the upper cylinder through a flange as a whole; it can also be a separate module; multiple layers of circular partitions are arranged inside it, and drop plates are provided on the partitions, which can divide the upper slurry into multiple streams and flow out through the thickness of the drop plates; the setting of the drop plates can make the slurry collide in the form of back and forth deflection.

[0046] 8. The umbrella-shaped dispersion bottom is arranged at the bottom of the multi-channel fine reforming member in the present invention to further prolong the passage time of the slurry in the buffer barrel. The arrangement of the umbrella-shaped dispersion bottom can disperse the slurry to the four sides of the buffer barrel, and then impact the lifting flow arc plate on the wall of the buffer barrel, lifting the slurry and then flowing out through the pointed cone at the bottom of the buffer barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0048] Figure 1 The accompanying drawing is a schematic structural diagram of a micro-vortex enhanced fine mineral slurry mixing device provided by the present invention;

[0049] Figure 2 The accompanying drawing is a schematic diagram of the structure of the drum provided by the present invention;

[0050] Figure 3 The accompanying drawing is a schematic structural diagram of a tooth-shaped disperser provided by the present invention;

[0051] Figure 4 The accompanying drawing is a schematic diagram of the overall structure of the reverse-rotating spoiler provided by the present invention;

[0052] Figure 5 The accompanying drawing is a schematic diagram of a partial structure of a reverse-rotating spoiler provided by the present invention;

[0053] Figure 6 The accompanying drawing is a schematic diagram of the structure of the spoiler provided by the present invention;

[0054] Figure 7 The accompanying drawing is a schematic structural diagram of the flow suppression member provided by the present invention;

[0055] Figure 8 The accompanying drawing is a schematic diagram of the cross-sectional structure of a multi-channel fine modified component provided by the present invention;

[0056] Figure 9 The accompanying drawing is a schematic diagram of the three-dimensional structure of the multi-channel fine modified component provided by the present invention;

[0057] Figure 10 The accompanying drawing is a schematic diagram of the partition and drop plate structure provided by the present invention.

[0058] in:

[0059] 101- variable frequency motor; 102- transmission shaft; 103- coupling;

[0060] 201-cylinder; 202-corundum; 203-cover plate; 204-flange cover; 205-first flange; 206-second flange; 207-feeding port;

[0061] 301-compressed gas inlet; 302-emulsified agent inlet; 303-modification area;

[0062] 401-rotating drum; 402-special-shaped corundum; 403-bottom cone;

[0063] 404-toothed disperser; 4041-top surface; 4042-side surface one; 4043-side surface two; 4044-serrated line; 4045-tooth root;

[0064] 405-reverse rotation spoiler;

[0065] 4050-spoiler block;

[0066] 40501- curved surface; 40502- narrow side elevation; 40503- wide side elevation; 40504- outer side; 40505- upper plane; 40506- lower plane;

[0067] 4051-first spoiler; 40513-first spoiler wide side elevation;

[0068] 4052-second spoiler; 40524-narrow side elevation of the second spoiler;

[0069] 4053-micro-vortex area;

[0070] 406- flow suppressor; 4061- flow blocking ring; 4062- distribution tooth; 4063- paddle;

[0071] 500-multi-channel fine modified part; 501-outer cylinder; 502-diversion channel; 503-partition plate; 504-drop plate; 505-third flange; 506-umbrella-shaped dispersion bottom; 507-reinforcement rib;

[0072] 601-buffer barrel; 602-upper cover; 603-contraction barrel; 604-fourth flange; 605-secondary compressed gas pipe; 606-secondary emulsification agent pipe; 607-flow arc plate; 608-support foot; 609-barrel bottom; 610-slurry outflow pipe; 611-pointed cone; 612-connecting rod. DETAILED DESCRIPTION

[0073] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0074] See attached Figure 1 To the attached Figure 2 The present invention discloses a micro-vortex-enhanced fine mineral slurry conditioning device, comprising a rotating drum 401 for achieving high-shear slurry conditioning, a toothed dispersing member 404, a reverse-rotating flow spoiler 405, a flow suppressor 406 on its upper portion, and a multi-channel fine modification member 500 for dispersing the slurry into various channels; wherein:

[0075] The upper part of the drum 401 is a hollow cylindrical structure, the upper end of which is sealed and connected to the variable frequency motor 101 through the coupling 103 and the drive shaft 102, driving the drum 401 to rotate at a variable speed; the drum 401 is arranged as a whole inside the cylinder 201 and is arranged coaxially with the cylinder 201. The inner wall of the cylinder 201 is lined with a wear-resistant material, which is corundum 201 in this embodiment; a flange cover 204 is arranged on the upper part of the cylinder 201, and the middle of the flange cover 204 is a raised through-hole shape to provide a position for the drive shaft 102.

[0076] A first flange 205 is also provided at the upper end of the cylinder 201, and the flange 204 cover is sealed to the cylinder 201 through the first flange 205; two feed ports 207 are provided at the upper end of the cylinder 201; a compressed gas inlet 301 is also provided on the upper part of the flange cover 204, and an emulsifier inlet 302 is arranged obliquely on the pipeline of the compressed gas inlet 301. The amount of emulsifier used here is 60%-80% of the total agent amount. The specific amount can be determined through actual slurry mixing tests, but the amount here should be dominant; the compressed gas inlet 301 is directly opposite the reforming zone 303 inside the cylinder 201. The reforming zone 303 is an annular space left between the cylinder 201 and the rotating drum 401, which is used for the passage and slurry mixing of the ore pulp.

[0077] The rotating drum 401 is built inside the cylinder 201, and the outer surface of the rotating drum 401 is also covered with corundum material; the bottom of the rotating drum 401 is a conical bottom cone 403, and the tooth-shaped disperser 404, the reverse rotation spoiler 405, and the flow suppressor 406 are arranged in sequence from the top of the rotating drum 401 to the bottom.

[0078] See attached Figure 3 401 , the tooth-shaped dispersing member 404 is arranged on the top surface flush with the upper plane of the rotating drum 401, and the tooth-shaped dispersing member 404 is a serrated structure, wherein the top surface 4041 has a certain thickness b and a certain width a; the width a of the tooth-shaped dispersing member 404 is smaller than the inner diameter of the cylinder 201; the angle formed by the side surface 1 4042 and the side surface 2 4043 of one of the sawtooths on the width of the tooth-shaped dispersing member 404 is 60 degrees, the line where the side surface 1 4042 and the side surface 2 4043 intersect with the top surface 4041 in space, and the line where the side surface 1 4042 and the side surface 2 4043 intersect with the serrated line 4044 of the top surface are all in the same vertical plane; the height of the tooth-shaped dispersing member 404 should not exceed one-fourth of the height of the rotating drum 401, and the tooth-shaped dispersing member 404 can be made of corundum material, and multiple thereof are arranged along the axial direction of the outer wall of the rotating drum 401, except for the tooth-shaped dispersing member 404 that fills the place, the remaining empty spaces are filled with special-shaped corundum 402.

[0079] See attached Figure 4 To the attached Figure 6 The reverse-rotating spoiler 405 is arranged immediately below the tooth-shaped disperser 404. The reverse-rotating spoiler 405 is composed of a spoiler block 4050 made of customized corundum material, and each block has the same structure. The spoiler block 4050 consists of six surfaces, including an arcuate surface 40501, a narrow side elevation 40502, a wide side elevation 40503, an outer side surface 40504, an upper plane 40505, and a lower plane 40506. The arcuate surface 40501 is tightly adhered to the outer wall of the rotating drum 401 without a gap. The outer side surface 40504 is arranged outward, facing the reforming zone 303. The upper plane 40505 is adjacent to the lower part of the tooth-shaped disperser 404, and the lower plane 40506 is set downward.

[0080] The narrow side facade 40502 and the wide side facade 40503 of the spoiler 4050 are located on both sides, and the width of the narrow side facade 40502 is half of the width of the wide side facade 40503.

[0081] In this embodiment, see the attached Figure 5 , take two adjacent spoiler blocks 4050 in the counter-rotating spoiler 405 as an example, namely the first spoiler block 4051 and the second spoiler block 4052, wherein the first spoiler block wide side facade 40513 is connected to the second spoiler block narrow side facade 40524, and the other spoiler blocks 4050 are pasted in sequence according to this arrangement, namely the outer side surface 40504 of the second spoiler block 4052 is connected to the first spoiler block wide side facade 40513, but only connected to half of the width of the first spoiler block wide side facade 40513, so that the arrangement produces a staggered layer effect; looking down from the top of the rotating drum 401, the rotating drum 401 rotates counterclockwise, and a micro-vortex area 4053 is surrounded between the first spoiler block wide side facade 40513 and the outer side surface 40504 of the second spoiler block 4052. Therefore, there are multiple micro-vortex areas 4053 in the entire reverse swirling spoiler 405; the wide side elevation 40503 and the narrow side elevation 40502 of the spoiler block 4050 are respectively on the same plane with the central axis of the rotating drum 401; in addition, the range swept by the spoiler block 4050 during rotation is wider than that of the tooth-shaped disperser 404, that is, the slurry sheared and dispersed by the tooth-shaped disperser 404 will be closely slurried by the reverse swirling spoiler 405; each spoiler block in the reverse swirling spoiler 405 has the same height and is slightly higher than the tooth-shaped disperser 404, the tooth root 4045 of each sawtooth of the tooth-shaped disperser 404 is on the same plane, and the thickness of the tooth root 4045 from the bottom of the tooth-shaped disperser 404 is the same as the width of the narrow side elevation 40502 of the spoiler block 4050 in the reverse swirling spoiler 405.

[0082] See attached Figure 7, a flow suppressing member 406 is further provided at the lower part of the reverse-rotating spoiler 405, and the flow suppressing member 406 is a circular ring structure arranged in two or more layers, and its structure includes a flow-blocking ring 4061, a distribution tooth 4062, and a paddle 4063; the flow-blocking ring 4061 is welded on the outer wall of the rotating drum 401, and the plane where the flow-blocking ring 4061 is located is perpendicular to the central axis of the rotating drum 401, and the width of the flow-blocking ring 4061 is the same as the width of the narrow side elevation 40502 of the spoiler 4050; a plurality of paddles 4063 are welded along the plane where the central axis of the rotating drum 401 is located, and the paddles 4063 are welded perpendicular to the flow-blocking ring 4061, and the surface where each paddle 4063 is located coincides with the central axis of the rotating drum 401, and the paddle 4063 is a The sprocket 4063 is rectangular in shape, with its length twice as long as its width, and its length parallel to the central axis of the drum 401. Two distribution teeth 4062 are welded to the outside of each paddle 4063. The distribution teeth 4062 are arranged above and below the surface of the baffle ring 4061, forming an equilateral triangle with a side length half the length of the paddle 4063. As shown in the figure, there are six pairs of paddles 4063 welded to the baffle ring 4061. Furthermore, there are three layers of baffle rings 4061, with a small distance between adjacent layers, which facilitates the cutting and dispersion of the slurry flow. The sweep radius of the distribution teeth 4062 is smaller than the inner diameter of the drum 201.

[0083] In order to further optimize the above technical solution, a second flange 206 is provided at the bottom end of the cylinder 201. The overall height of the rotating cylinder 401 and the bottom cone 403 is slightly smaller than the height of the cylinder 201. That is, the rotating cylinder 401 is inside the cylinder 201.

[0084] See attached Figure 8 The lower part of the cylinder 201 is also provided with a multi-channel fine modification member 500, which is composed of an outer cylinder 501, a partition 503, a drop plate 504, and an umbrella-shaped dispersion bottom 506.

[0085] A third flange 505 is welded to the outer wall of the upper end of the outer cylinder 501, and the size of the third flange 505 is the same as that of the second flange 206; multiple layers of cylindrical partitions 503 with different diameters are installed inside the outer cylinder 501, and a diversion channel 502 is formed between each adjacent two partitions 503, and the radial width of each diversion channel 502 is the same; the central axis of each layer of partition 503 coincides with the central axis of the outer cylinder 501; drop plates 504 are arranged in a cross-annular manner on both sides of the partition 503, that is, the top of the drop plate 504 on the left side of the partition 503 is close to the bottom of the drop plate 504 on the right side; the longitudinal section of the drop plate 504 is a right-angled triangle structure; the inner wall of the outer cylinder 501 is also provided with a drop plate 504, and the drop plate 504 on the inner wall of the outer cylinder 501 is provided with a drop plate 504. The top of the multi-channel fine reforming element 500 is in the same horizontal space as the bottom of the drop plate 504 on the horizontally opposite partition 503. The bottom of the same drop plate 504 on the inner wall of the outer cylinder 501 is in the same horizontal space as the top of the drop plate 504 on the horizontally opposite partition 503. The two together also form a diversion channel 502, that is, two adjacent drop plates 504 on the same side of the partition 503 are spaced apart by one drop plate 504. The angle between the side and bottom of the drop plate 504 is 60 degrees. The radial spacing between each diversion channel 502 is equal to the radial width (along the radial direction of the outer cylinder) of the bottom surfaces of the two drop plates 504. The entire multi-channel fine reforming element 500 is assembled with the second flange 206 via the third flange 505.

[0086] An umbrella-shaped dispersing bottom 506 is installed at the lower end of the outer cylinder 501 . The diameter of the umbrella-shaped dispersing bottom 506 is the same as that of the outer cylinder 501 . The umbrella-shaped dispersing bottom 506 is welded to the bottom side wall of the outer cylinder 501 through reinforcing ribs 507 to form a whole.

[0087] The multi-channel fine modified part 500 is placed as a whole in the shrinkage barrel 603, and the shrinkage barrel 603 is connected to the buffer barrel 601 through the upper cover 602; the inner diameter of the outer cylinder 501 is slightly smaller than the inner diameter of the shrinkage barrel 603, which is convenient for taking out the multi-channel fine modified part 500; the fourth flange 604 is provided at the upper end of the shrinkage barrel 603, and the cylinder 201, the multi-channel fine modified part 500 and the shrinkage barrel 603 are connected together through the fourth flange 604, the third flange 505 and the second flange 206; the buffer barrel 601 is a cylindrical structure, and a flow arc plate 607 is provided at the terminal end of the inner wall of the buffer barrel 601, and a support foot 608 is provided at the bottom of the flow arc plate 607 for supporting the flow arc plate 607 stably. After the flow arc plate 607 is bent, it faces the umbrella-shaped dispersion bottom 506.

[0088] A secondary compressed gas pipe 605 is provided on the outer wall of the buffer barrel 601, on which a secondary emulsified agent pipe 606 is arranged for replenishing the agent. The secondary compressed gas pipe 605 penetrates the outer wall of the buffer barrel 601 and releases the emulsified agent toward the area between the bottom of the outer barrel 501 and the umbrella-shaped dispersion bottom 506.

[0089] The bottom 609 of the buffer barrel 601 is a conical structure, which is convenient for collecting slurry. The bottom 609 is connected to the slurry outflow pipe 610, and the middle of the slurry outflow pipe 610 is connected to the pointed cone 611 through a connecting rod 612 to further disperse the slurry.

[0090] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0091] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A micro-vortex enhanced fine mineral slurry mixing device, characterized in that: include: A cylinder (201), wherein the inner wall of the cylinder (201) is lined with a wear-resistant material; A rotating drum (401), wherein the upper portion of the rotating drum (401) is a hollow cylindrical structure, the upper end of which is sealed and connected to the variable frequency motor (101) via a coupling (103) and a transmission shaft (102), and the rotating drum (401) is arranged as a whole inside the cylinder (201) and is coaxially arranged with the cylinder (201); a tooth-shaped dispersing member (404), the tooth-shaped dispersing member (404) being arranged on the upper portion of the rotating drum (401) and being used for dispersing the slurry; a reverse vortex spoiler (405), the reverse vortex spoiler (405) being arranged at the lower portion of the tooth-shaped dispersing member (404) and being used to generate a micro-vortex zone (4053) to enhance slurry conditioning; A flow suppressor (406), arranged below the reverse-rotating flow spoiler (405), for further enhancing particle movement and preventing the slurry from passing through too quickly; A multi-channel fine reforming member (500) is arranged at the lower part of the drum (401) and is used to disperse the slurry into various channels and perform fine reforming.

2. The micro-vortex enhanced fine mineral slurry mixing device according to claim 1, characterized in that: The upper end of the cylinder (201) is provided with a first flange (205) and two feed ports (207); the flange cover (204) is sealedly connected to the cylinder (201) through the first flange (205); the upper part of the flange cover (204) is provided with a compressed gas inlet (301) and an emulsified agent inlet (302); the compressed gas inlet (301) is directly opposite to the modified area (303) inside the cylinder (201).

3. The micro-vortex enhanced fine mineral slurry mixing device according to claim 1, characterized in that: The tooth-shaped dispersing member (404) is a sawtooth structure, the width of the tooth-shaped dispersing member (404) is smaller than the inner diameter of the cylinder (201), and the angle formed by the sawtooth side surface 1 (4042) and the side surface 2 (4043) of the tooth-shaped dispersing member (404) is 60 degrees.

4. The micro-vortex enhanced fine mineral slurry mixing device according to claim 1, characterized in that: The reverse-rotating spoiler (405) is composed of a plurality of spoiler blocks (4050), each spoiler block (4050) being composed of an arcuate surface (40501), a narrow side elevation (40502), a wide side elevation (40503), an outer side surface (40504), an upper plane (40505) and a lower plane (40506), the narrow side elevations (40502) and the wide side elevations (40503) being arranged alternately, and the width of the wide side elevations (40503) being twice the width of the narrow side elevations (40502).

5. The micro-vortex enhanced fine mineral slurry mixing device according to claim 1, characterized in that: The flow suppressor (406) is a multi-layer annular structure, comprising a flow-blocking ring (4061), distribution teeth (4062) and a paddle (4063); the flow-blocking ring (4061) is welded to the outer wall of the rotating drum (401); the paddle (4063) is vertically welded to the flow-blocking ring (4061); and the distribution teeth (4062) are welded to the outside of the paddle (4063).

6. The micro-vortex enhanced fine mineral slurry mixing device according to claim 1, characterized in that: The multi-channel fine modification component (500) includes an outer cylinder (501), a partition (503), a drop plate (504) and an umbrella-shaped dispersion bottom (506). Multiple layers of the partition (503) are installed inside the outer cylinder (501), and diversion channels (502) are formed between adjacent partitions (503). The drop plates (504) are arranged in a cross-ring on both sides of the partition (503).

7. The micro-vortex enhanced fine mineral slurry mixing device according to claim 6, characterized in that: The umbrella-shaped dispersing bottom (506) is welded to the bottom side wall of the outer cylinder (501) through reinforcing ribs (507) to form a whole. The diameter of the umbrella-shaped dispersing bottom (506) is the same as that of the outer cylinder (501).

8. The micro-vortex enhanced fine mineral slurry mixing device according to claim 1, characterized in that: The bottom of the rotating drum (401) is a conical bottom cone (403), and the rotating drum (401) and the tooth-shaped dispersion member (404), the reverse-rotation spoiler (405) and the flow suppression member (406) thereon are combined into an independent slurry mixing system.

9. The micro-vortex enhanced fine mineral slurry mixing device according to claim 1, characterized in that: The multi-channel fine modification member (500) is connected to the second flange (206) at the lower end of the cylinder (201) via a third flange (505). The multi-channel fine modification member (500) is placed as a whole in a shrinkage barrel (603). The shrinkage barrel (603) is connected to the buffer barrel (601) via an upper cover (602).

10. The micro-vortex enhanced fine mineral slurry mixing device according to claim 9, characterized in that: The inner wall terminal of the buffer barrel (601) is provided with a flow arc plate (607), and the outer wall of the buffer barrel (601) is provided with a secondary compressed gas pipe (605) and a secondary emulsifying agent pipe (606). The barrel bottom (609) of the buffer barrel (601) is a conical structure, and the barrel bottom (609) is connected to the slurry outflow pipe (610). The middle of the slurry outflow pipe (610) is connected to the pointed cone (611) through a connecting rod (612).

Images