Cyclone with long cones connected in series with short cones
By employing a segmented classification and grinding process using long-cone cyclones connected in series with short-cone cyclones, combined with a servo motor-driven cam and spring structure, the problem of difficulty in controlling grinding fineness was solved, achieving efficient classification of slurry and improved mineral processing recovery rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-03-20
AI Technical Summary
The existing grinding and classification process system uses one ball mill and one hydrocyclone group to form a closed-circuit grinding process, which makes it difficult to control the grinding fineness, easily causes the slurry to become muddy, and affects the flotation process indicators.
By employing a long-cone hydrocyclone connected in series with a short-cone hydrocyclone, segmented classification and segmented grinding are achieved through the combination of the long-cone and short-cone hydrocyclones. Combined with a servo motor-driven cam and spring structure, the oscillation effect of the slurry output pipe is enhanced, thus optimizing the grinding and classification process.
It improves the classification accuracy of the particle size distribution of grinding products, avoids over-grinding of slurry, and enhances mineral processing recovery rate and classification accuracy.
Smart Images
Figure CN224009983U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of ore dressing, and particularly relates to a long-cone series short-cone cyclone. BACKGROUND
[0002] In recent years, global mine resources gradually change from "high-grade, easy-to-select mineral" to "low-grade, difficult-to-treat, multi-component and associated complex mine". This leads to long ore dressing process, low resource comprehensive utilization rate, high production cost and other problems, which hinder the bottleneck of high-quality development of related enterprises.
[0003] The main problems existing in copper-nickel sulfide ore flotation are that magnesium silicate gangue minerals are difficult to suppress, mineral dissemination size is fine, symbiotic relationship is complex, copper-nickel minerals are difficult to dissociate, and it is difficult to improve the beneficiation recovery rate. In view of the above problems, beneficiation researchers have carried out a lot of experimental research on reagents and processes, and have achieved certain results, but Huangshan copper-nickel ore belongs to the national high-talc type low-grade and difficult-to-select copper-nickel ore, the metal mineral dissemination size is fine, the impurity MgO content is high, the content of easy-to-float and easy-to-mud gangue minerals is high, which leads to low enrichment ratio, low concentrate grade and low beneficiation recovery rate.
[0004] The nickel ore resources in China are mainly copper-nickel sulfide ore, which accounts for more than 90% of the total nickel resources. The most economical and commonly used beneficiation method for copper-nickel sulfide ore is flotation. Therefore, it is urgent to study a new method for improving the concentrate grade and recovery rate in the flotation process, and grinding is a necessary process before flotation, which has a great influence on the flotation of minerals.
[0005] The existing grinding classification process system adopts one ball mill and one cyclone group to form a closed-circuit grinding process. Although this treatment process has a simple layout, the grinding fineness is not easy to control, which easily causes serious slurry sliming phenomenon and brings adverse factors to the flotation process index.
[0006] In view of the above problems, the present application provides a long-cone series short-cone cyclone. SUMMARY
[0007] The utility model discloses a long-cone series short-cone cyclone, solves the existing grinding classification process system adopts one ball mill and one cyclone group, forms a closed-circuit grinding process, and the problem that this treatment process although layout is simple, but exists grinding fineness not easy to control, and easily causes serious slurry sliming phenomenon, and brings adverse factors to the flotation process index.
[0008] In order to achieve the above object, the utility model provides a long cone series short cone cyclone, including raw ore, ball mill, vertical mill, ore pulp modifier, flotation cell and flow shell, the top of flow shell is fixedly connected with support block, the end surface of support block is provided with long cone cyclone, the top of flow shell is provided with short cone overflow pipe, the vertical part of short cone overflow pipe far from the top of flow shell is provided with short cone cyclone, the upper end of long cone cyclone is provided with long cone overflow pipe, the horizontal part of long cone overflow pipe is fixedly connected with short cone cyclone, the lower end of flow shell is provided with ore pulp output pipe, the ore pulp output pipe is fixedly connected with ore pulp modifier, is provided with auxiliary mechanism on ore pulp output pipe.
[0009] The principle of the utility model lies in: the raw ore in the powder ore bin is conveyed to the ball mill for treatment by the conveying belt, the material treated by the ball mill is conveyed to the long cone cyclone for inspection and classification, the sand is returned to the ball mill for regrinding treatment, and the process is repeated, the overflow of the long cone cyclone directly enters the short cone cyclone for control classification, the sand is returned to the vertical mill by itself, fine grinding is carried out, the material treated by the vertical mill is mixed with the overflow of the short cone cyclone and enters the ore pulp modifier, and after strong stirring and scrubbing, enters the flotation cell.
[0010] In this process, when the ore pulp output pipe inputs the mixed material into the ore pulp modifier, the servo motor is started to drive the output shaft to rotate, so as to drive the cam to rotate, when the long end of the cam extrudes the end head, the telescopic piece can slide along the inner wall of the fixed piece, the spring is deformed, and the impact body is moved, so that the impact body contacts the ore pulp output pipe, when the long end of the cam is separated from the end head, the spring restores the deformation to push the end head to move the telescopic piece to the left side, and drive the impact body to separate from the ore pulp output pipe, and the process is repeated, under the impact of the impact body, the ore pulp output pipe can be oscillated to discharge, so as to improve the conveying effect of the ore pulp.
[0011] The utility model has the advantages that: the material treated by the ball mill is conveyed to the long cone cyclone for inspection and classification, the sand is returned to the ball mill for regrinding treatment, and the process is repeated, the overflow of the long cone cyclone directly enters the short cone cyclone for control classification, the sand is returned to the vertical mill by itself, fine grinding is carried out, the material treated by the vertical mill is mixed with the overflow of the short cone cyclone and enters the ore pulp modifier, and after strong stirring and scrubbing, enters the flotation, realizes the sectional classification-section grinding, optimizes the grinding classification process, optimizes the grinding product size composition, avoids the problem of mud caused by overgrinding, improves the classification accuracy and the beneficiation recovery rate, the cam is driven to rotate by the servo motor drive output shaft, the cam continuously extrudes the end head, and the deformation of the spring can make the telescopic piece drive the impact body to impact the ore pulp output pipe continuously, so that the ore pulp output pipe produces oscillation, and the output and discharging effect of the ore pulp is improved.
[0012] Further, the long cone cyclone is provided with four, four long cone cyclones are arranged in annular array above the flow-through shell, the long cone cyclone is provided for the long cone hydrocyclone, which is used for preliminary classification, prolongs the residence time of the ore pulp, improves the coarse particle settling efficiency, reduces the amount of fine particle back sand, and thus reduces the mill circulating load.
[0013] Further, the short cone cyclone is provided with four, four short cone cyclones are arranged in annular array above the flow-through shell, the short cone cyclone is provided for the short cone hydrocyclone, which is responsible for the secondary fine classification of the fine particles of the long cone overflow, separates the fine product that meets the requirements, and avoids overgrinding.
[0014] Further, the lower end of the flow-through shell and the right side of the ore pulp output pipe are provided with a slag slurry input pipe, the other end of the slag slurry input pipe is provided with a slag slurry pump, the slag slurry input pipe and the slag slurry pump are used in cooperation, and the material treated by the ball mill can be transported to the long cone cyclone for inspection and classification.
[0015] Further, the auxiliary mechanism comprises a mounting cylinder, the left side of the ore pulp output pipe is fixedly connected with the mounting cylinder, the back surface of the mounting cylinder is fixedly installed with a servo motor, the output shaft of the servo motor is rotatably connected with the mounting cylinder, the outer side of the output shaft of the servo motor is fixedly sleeved with a cam, the cam is located in the inside of the mounting cylinder, the inner wall of the mounting cylinder is fixedly connected with a fixed piece, the inner wall of the fixed piece is slidably connected with an expansion piece, the expansion piece is slidably connected with the mounting cylinder, the horizontal part of the expansion piece is fixedly connected with an end, the end is in contact with the cam, the vertical part of the expansion piece is welded with a spring, one end of the spring is welded with the fixed piece, the vertical part of the expansion piece is fixedly connected with a striking body, through the cooperation of the servo motor, the cam and other structures, the end can be continuously extruded, and the deformation of the spring can be matched, so that the striking body continuously impacts and oscillates the ore pulp output pipe, to assist the output of the ore pulp.
[0016] Further, the spring is provided with two, the two springs are symmetrically distributed on the expansion piece, and the spring is used for connecting the expansion piece.
[0017] Further, the striking body is provided with three, the three striking bodies are evenly distributed on the vertical part of the expansion piece, and the striking body is used for impacting the ore pulp output pipe. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 The process flow chart of the long cone series short cone cyclone grinding and classification system of the embodiment of the application;
[0019] Figure 2 The overall structure perspective view of the long cone series short cone cyclone of the embodiment of the application;
[0020] Figure 3 This invention relates to a long-cone series-connected short-cone cyclone separator. Figure 2 Sectional view of the mounting cylinder;
[0021] Figure 4 This invention relates to a long-cone series-connected short-cone cyclone separator. Figure 3 Side view of the cam.
[0022] The following detailed description illustrates the specific implementation method:
[0023] The reference numerals in the accompanying drawings include: raw ore 1, ball mill 2, vertical mill 3, slurry modifier 4, flotation cell 5, flow shell 6, support block 61, long cone hydrocyclone 62, short cone overflow pipe 63, short cone hydrocyclone 64, long cone overflow pipe 65, slurry output pipe 66, slurry input pipe 67, auxiliary mechanism 7, mounting cylinder 71, servo motor 72, cam 73, fixing plate 74, telescopic plate 75, end head 76, spring 77, impactor 78. Detailed Implementation
[0024] The implementation examples are basically as follows Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, this embodiment provides a long cone cyclone series short cone cyclone, including raw ore 1, ball mill 2, vertical mill 3, slurry modifier 4, flotation cell 5, and flow shell 6. A support block 61 is fixedly connected to the top of the flow shell 6. A long cone cyclone 62 is provided on the end face of the support block 61. A short cone overflow pipe 63 is provided at the top of the flow shell 6. A short cone cyclone 64 is provided on the vertical part of the short cone overflow pipe 63 away from the top of the flow shell 6. A long cone overflow pipe 65 is provided at the upper end of the long cone cyclone 62. The horizontal part of the long cone overflow pipe 65 is fixedly connected to the short cone cyclone 64. A slurry output pipe 66 is provided at the lower end of the flow shell 6. The slurry output pipe 66 is fixedly connected to the slurry modifier 4.
[0025] like Figure 1 , Figure 2 As shown, four long conical hydrocyclones 62 are provided. The four long conical hydrocyclones 62 are arranged in a ring array above the flow shell 6. The long conical hydrocyclones 62 are used for preliminary classification, prolonging the residence time of the slurry, improving the settling efficiency of coarse particles, reducing the amount of fine particles returning sand, thereby reducing the circulating load of the mill.
[0026] like Figure 1 , Figure 2As shown, four short cone cyclones 64 are arranged in an annular array above the flow passage shell 6. The short cone cyclones 64 are responsible for the secondary fine classification of fine particles in the overflow of the long cone cyclone 62, and separate the fine particle product that meets the requirements to avoid overgrinding.
[0027] As shown in Figure 1 , Figure 2 , Figure 3 As shown, the slag slurry input pipe 67 is arranged at the lower end of the flow passage shell 6 and on the right side of the ore slurry output pipe 66. The other end of the slag slurry input pipe 67 is provided with a slag slurry pump. Through the cooperation of the slag slurry input pipe 67 and the slag slurry pump, the material treated by the ball mill 2 can be transported to the long cone cyclone 62 for inspection and classification.
[0028] As shown in Figure 2 , Figure 3 , Figure 4 As shown, the auxiliary mechanism 7 is arranged on the ore slurry output pipe 66. The auxiliary mechanism 7 includes a mounting cylinder 71. The mounting cylinder 71 is fixedly connected to the left side of the ore slurry output pipe 66. A servo motor 72 is fixedly installed on the back of the mounting cylinder 71. The output shaft of the servo motor 72 is rotatably connected to the mounting cylinder 71. A cam 73 is fixedly sleeved on the outside of the output shaft of the servo motor 72. The cam 73 is located in the interior of the mounting cylinder 71. A fixed piece 74 is fixedly connected to the inner wall of the mounting cylinder 71. A telescopic piece 75 is slidably connected to the inner wall of the fixed piece 74. The telescopic piece 75 is slidably connected to the mounting cylinder 71. An end head 76 is fixedly connected to the horizontal part of the telescopic piece 75. The end head 76 is in contact with the cam 73. A spring 77 is welded to the vertical part of the telescopic piece 75. One end of the spring 77 is welded to the fixed piece 74. A striking body 78 is fixedly connected to the vertical part of the telescopic piece 75. Through the cooperation of the servo motor 72, the cam 73 and other structures, the end head 76 can be continuously extruded. In combination with the deformation of the spring 77, the striking body 78 can continuously impact and oscillate the ore slurry output pipe 66 to assist the output of the ore slurry.
[0029] As shown in Figure 2 , Figure 3 , Figure 4 As shown, two springs 77 are symmetrically distributed on the telescopic piece 75. Through the arrangement of the springs 77, the telescopic piece 75 can be connected and used. Three striking bodies 78 are evenly distributed on the vertical part of the telescopic piece 75. Through the arrangement of the striking bodies 78, the ore slurry output pipe 66 can be impacted and treated.
[0030] The utility model discloses a specific implementation process as follows: through the raw ore 1 in the powder ore bin is handled to ball mill 2 with the slag slurry pump and is transported to long cone cyclone 62 and is examined grading, and its sand return is returned to ball mill 2 and is ground again, and it is circulated in turn, and the overflow of long cone cyclone 62 directly enters short cone cyclone 64 and is controlled grading, and its sand return is returned to vertical mill 3 and is finely ground, and the material handled after vertical mill 3 and the overflow of short cone cyclone 64 mix and enter ore pulp modifier 4, and after adding medicine and strong stirring and scrubbing, enter flotation tank 5;
[0031] In this process, when the mixed material is input into ore pulp modifier 4 by ore pulp output pipe 66, servo motor 72 is started to drive the output shaft to rotate, so as to drive cam 73 to rotate, when the long end of cam 73 extrudes end head 76, flexible sheet 75 can be driven to slide along the inner wall of fixed sheet 74, spring 77 is deformed, and impact body 78 is driven to move, so that impact body 78 contacts ore pulp output pipe 66, when the long end of cam 73 is separated from end head 76, spring 77 restores deformation to push end head 76 to drive flexible sheet 75 to move to the left side, and impact body 78 is separated from ore pulp output pipe 66, and the process is repeated, under the impact of impact body 78, ore pulp output pipe 66 can be vibrated to discharge, so as to improve the conveying effect of ore pulp.
[0032] The utility model discloses a specific implementation process as follows: through the raw ore 1 in the powder ore bin is handled to ball mill 2 with the slag slurry pump and is transported to long cone cyclone 62 and is examined grading, and its sand return is returned to ball mill 2 and is ground again, and it is circulated in turn, and the overflow of long cone cyclone 62 directly enters short cone cyclone 64 and is controlled grading, and its sand return is returned to vertical mill 3 and is finely ground, and the material handled after vertical mill 3 and the overflow of short cone cyclone 64 mix and enter ore pulp modifier 4, and after adding medicine and strong stirring and scrubbing, enter flotation tank 5, realize segmented grading-segmented ore grinding, optimize ore grinding grading process, optimize ore grinding product granularity composition, avoid the problem of overgrinding leading to mudification, improve grading accuracy and beneficiation recovery rate, through servo motor 72 drive output shaft cam 73 rotation, so that cam 73 constantly extrude end head 76, and cooperate with the deformation of spring 77, flexible sheet 75 can drive impact body 78 to impact ore pulp output pipe 66 constantly, so that ore pulp output pipe 66 produces vibration feeling, improve the output of ore pulp.
[0033] It should be noted that in the present application, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0034] The above is only an embodiment of the present application, and the common knowledge of the specific structure and characteristics in the scheme is not described in detail. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, which will not affect the effect and practicality of the patent. The protection scope claimed in the present application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.
Claims
1. A long-cone series short-cone hydrocyclone, comprising raw ore, a ball mill, a vertical mill, a slurry modifier, a flotation cell, and a flow shell, characterized in that: A support block is fixedly connected to the top of the flow shell. A long conical cyclone is provided on the end face of the support block. A short conical overflow pipe is provided at the top of the flow shell. A short conical cyclone is provided on the vertical part of the short conical overflow pipe away from the top of the flow shell. A long conical overflow pipe is provided at the upper end of the long conical cyclone. The horizontal part of the long conical overflow pipe is fixedly connected to the short conical cyclone. A slurry output pipe is provided at the lower end of the flow shell. The slurry output pipe is fixedly connected to the slurry reformer. An auxiliary mechanism is provided on the slurry output pipe.
2. The long-cone tandem short-cone cyclone separator according to claim 1, characterized in that: Four long conical cyclones are provided, and the four long conical cyclones are arranged in a ring array above the flow shell.
3. The long-cone tandem short-cone cyclone separator according to claim 1, characterized in that: Four short cone cyclones are provided, and the four short cone cyclones are arranged in a ring array above the flow shell.
4. The long-cone tandem short-cone cyclone separator according to claim 1, characterized in that: A slurry input pipe is provided at the lower end of the flow shell and on the right side of the slurry output pipe, and a slurry pump is provided at the other end of the slurry input pipe.
5. The long-cone tandem short-cone cyclone separator according to claim 1, characterized in that: The auxiliary mechanism includes an installation cylinder. The installation cylinder is fixedly connected to the left side of the slurry output pipe. A servo motor is fixedly installed on the back of the installation cylinder. The output shaft of the servo motor is rotatably connected to the installation cylinder. A cam is fixedly sleeved on the outside of the output shaft of the servo motor. The cam is located inside the installation cylinder. A fixing plate is fixedly connected to the inner wall of the installation cylinder. A telescopic plate is slidably connected to the inner wall of the fixing plate. The telescopic plate is slidably connected to the installation cylinder. An end is fixedly connected to the horizontal part of the telescopic plate. The end contacts the cam. A spring is welded to the vertical part of the telescopic plate. One end of the spring is welded to the fixing plate. An impactor is fixedly connected to the vertical part of the telescopic plate.
6. The long-cone tandem short-cone cyclone separator according to claim 5, characterized in that: Two springs are provided, and the two springs are symmetrically distributed on the telescopic plate.
7. The long-cone tandem short-cone cyclone separator according to claim 5, characterized in that: The impactor is provided in three parts, which are evenly distributed on the vertical part of the telescopic plate.