Size mixing tank for metal ore flotation
By introducing a guide tube and spiral guide plates into the slurry mixing tank for metal ore flotation, combined with the design of a rotating disk and stirring blades, the problem of ore particle stratification is solved, uniform mixing of the slurry is achieved, the flotation effect is improved, and the use of reagents is reduced.
Patent Information
- Application Number
- CN202520026489.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2035-01-07
AI Technical Summary
Traditional slurry mixing devices cause stratification of mineral particles in the barrel, making it impossible to achieve good dispersion between mineral particles and sufficient interaction between mineral particles and reagents, affecting flotation effects and increasing reagent usage.
A slurry mixing tank for metal ore flotation is designed. By arranging a guide pipe outside the rotating shaft and a spiral guide piece on the inner wall of the slurry mixing tank, the slurry flow in the vertical direction is formed. Combined with the design of the rotating disk and the stirring blade, the slurry mixing uniformity is improved.
It effectively improves the mixing uniformity of the slurry, reduces the waste of reagents, and ensures the smooth progress of the flotation process.
Smart Images
Figure CN223381774U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mineral processing equipment, in particular to a slurry mixing tank for metal ore flotation. Background Art
[0002] In the flotation of metal ores, the interaction between the ore particles and the flotation reagents plays a decisive role in determining flotation performance. If the slurry is not adequately adjusted, more flotation reagents will need to be added to achieve the same flotation performance, resulting in a certain degree of waste of flotation reagents. Furthermore, for some poorly soluble reagents, if they cannot be fully dissolved and dispersed, they will not be able to achieve their desired effect, and sometimes even directly lead to the failure of the flotation process.
[0003] Traditional slurry mixing devices consist of a stirring paddle and a cylindrical barrel. Slurry mixing is achieved solely through the horizontal rotation of the stirring paddle, which creates a rotational motion within the barrel. Due to structural limitations, ores of varying sizes experience varying centrifugal forces during slurry rotation, leading to stratification of ore particles into different gravity zones on the horizontal and vertical surfaces of the barrel. This prevents proper dispersion of the ore particles and prevents the ore particles from interacting effectively with the reagent. Utility Model Content
[0004] In order to solve or partially solve the problems existing in the related art, the utility model provides a slurry mixing tank for metal ore flotation, which aims to improve the mixing uniformity of ore slurry and reagents.
[0005] The above-mentioned slurry mixing tank for metal ore flotation comprises a slurry mixing tank, a material guide pipe, a material guide sheet, and a rotating shaft;
[0006] A rotating shaft is rotatably installed in the slurry mixing tank, the lower end of the rotating shaft extends downward to the bottom of the slurry mixing tank, and a rotating disk is fixedly installed at the lower end of the rotating shaft. First stirring blades are arranged at intervals on the circumferential surface of the rotating disk, and centrifugal stirring blades are arranged at intervals on the top surface of the rotating disk around its circumference.
[0007] A material guide tube is provided on the outer sleeve of the rotating shaft, a material guide cavity is provided between the rotating shaft and the material guide tube, the material guide cavity extends downward to above the rotating disk, a material feed port is provided on the top of the material guide tube, and a material discharge gap is provided between the bottom of the material guide tube and the rotating disk;
[0008] A spiral material guide piece is provided on the inner side wall of the slurry mixing tank.
[0009] In some embodiments, the material guide pipe includes a rotating portion and a fixed portion, the fixed portion is located at the top and is fixedly connected to the slurry mixing tank via a first connecting rod, and the feed port is provided on the fixed portion; the upper end of the rotating portion is rotatably connected to the fixed portion, and the rotating portion is further fixedly connected to the rotating shaft via a second connecting rod;
[0010] A second stirring blade is provided on the outer circumferential surface of the rotating part.
[0011] In some embodiments, a protective sleeve is provided on the rotating shaft.
[0012] In some embodiments, the inner diameter of the guide tube is three to seven times the outer diameter of the rotating shaft.
[0013] In some embodiments, the lower end of the rotating shaft is rotatably connected to the bottom of the slurry mixing tank.
[0014] In some embodiments, the size of the discharge gap is larger than the size of the centrifugal stirring blade.
[0015] The technical solution provided by the utility model may have the following beneficial effects:
[0016] The present invention forms a top-down slurry flow in the slurry mixing tank by installing a guide pipe on the outer side of the rotating shaft to guide the slurry at the top downward. The invention also forms a bottom-up slurry flow in the slurry mixing tank by installing a spiral guide plate on the side wall of the slurry mixing tank. This effectively improves the convection between the upper and lower layers of slurry in the slurry mixing tank, thereby improving the mixing uniformity of the slurry. It should be understood that the above general description and the detailed description below are merely exemplary and explanatory and do not limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.
[0018] Figure 1 This is a structural schematic diagram of a slurry mixing tank shown in an embodiment of the present utility model;
[0019] Figure 2 This is another structural schematic diagram of the slurry mixing tank shown in an embodiment of the present utility model;
[0020] Reference numerals:
[0021] 1. Slurry mixing tank; 2. Material guide pipe; 21. Material guide chamber; 22. Material feed port; 23. Material discharge gap; 24. Rotating part; 25. Fixed part; 26. Second connecting rod; 3. Material guide piece; 4. Rotating shaft; 5. Rotating disk; 6. First stirring blade; 7. Centrifugal stirring blade; 8. First connecting rod; 9. Second stirring blade; 10. Protective cover. DETAILED DESCRIPTION
[0022] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited to the contents described above.
[0023] Example 1:
[0024] See also Figure 1 The application provides a slurry mixing tank for metal ore flotation, including a slurry mixing tank 1, a guide pipe 2, a guide plate 3, and a rotating shaft 4; the slurry mixing tank 1 is a hollow cylindrical shape with an open upper end, and a slurry inlet pipe and a slurry outlet pipe are provided on the side wall of the slurry mixing tank 1. The slurry inlet pipe is used to introduce ore pulp and reagents into the slurry mixing tank 1, and the slurry outlet pipe is used to guide the ore pulp in the slurry mixing tank 1 out of the slurry mixing tank 1. It can be imagined that the ore pulp and reagents can also be directly introduced into the slurry mixing tank 1 from the top of the slurry mixing tank 1.
[0025] A bracket is provided on the top of the slurry mixing tank 1, the upper end of the rotating shaft 4 is rotatably connected to the bracket, and the lower end of the rotating shaft 4 extends vertically downward into the slurry mixing tank 1, so that the rotating shaft 4 is rotatably installed in the slurry mixing tank 1, and the rotating shaft 4 is coaxially arranged with the slurry mixing tank 1. A motor for driving the rotating shaft 4 to rotate is provided on the bracket, and the motor is fixedly connected to the upper end of the rotating shaft 4 by a belt, a chain or its output shaft, so that it can drive the rotating shaft 4 to rotate.
[0026] The lower end of the rotating shaft 4 extends downward to the bottom of the slurry mixing tank 1, and a rotating disk 5 is fixedly installed at the lower end of the rotating shaft 4. First stirring blades 6 are arranged at intervals on the circumferential surface of the rotating disk 5, and centrifugal stirring blades 7 are arranged at intervals on the top surface of the rotating disk 5 around its circumferential direction; a material guide pipe 2 is provided on the outer sleeve of the rotating shaft 4, and a material guide cavity 21 is provided between the rotating shaft 4 and the material guide pipe 2. The projection of the material guide cavity 21 on the horizontal plane is smaller than the projection of the rotating disk 5 on the horizontal plane, and the material guide cavity 21 extends downward to the top of the rotating disk 5, and a feed port 22 is provided on the top of the material guide pipe 2. The setting height of the feed port 22 is lower than the liquid level height of the slurry in the slurry mixing tank 1, and a discharge gap 23 is provided between the bottom of the material guide pipe 2 and the rotating disk 5; a spiral material guide sheet 3 is provided on the inner side wall of the slurry mixing tank 1.
[0027] In this way, when working, the motor drives the rotating disk 5 to rotate through the rotating shaft 4, and then drives the centrifugal stirring blade 7 and the first stirring blade 6 to rotate; the rotating centrifugal stirring liquid sheet sweeps the material at the lower end of the guide chamber 21 outward from the discharge gap 23, and evenly distributes it at the bottom of the slurry mixing tank 1, thereby forming a vacuum at the lower end of the guide chamber 21, and then sucking the slurry at the top from the feed port 22, and then draining it to the bottom of the slurry mixing tank 1 through the guide chamber 21, forming a slurry flow flowing from top to bottom in the guide chamber 21, thereby improving the convection intensity of the upper and lower slurries in the slurry mixing tank 1, and thereby improving the uniformity of the slurry mixing.
[0028] Furthermore, the rotating first stirring blade 6 mixes the materials at the bottom of the slurry mixing tank 1 evenly while driving the slurry to rotate in the slurry mixing tank 1. The rotating slurry flows upward along the spirally distributed guide piece 3 to the top of the slurry mixing tank 1, and then forms a slurry flow flowing from bottom to top on the inner wall of the slurry mixing tank 1, further improving the convection intensity of the upper and lower slurries in the slurry mixing tank 1, thereby once again improving the uniformity of the slurry mixing.
[0029] Example 2:
[0030] Based on the first embodiment, in this embodiment, if Figure 2 As shown, the material guide pipe 2 includes a rotating part 24 and a fixed part 25. The fixed part 25 is located at the top and is fixedly connected to the slurry mixing tank 1 through a first connecting rod 8 (or bracket). The feed port 22 is provided on the fixed part 25. During slurry mixing, the position of the feed port 22 is relatively stationary, which is conducive to the suction of slurry; the upper end of the rotating part 24 is rotatably connected to the fixed part 25, and the rotating part 24 is also fixedly connected to the rotating shaft 4 through a second connecting rod 26, so that when the rotating shaft 4 rotates, it can drive the rotating part 24 to rotate; a second stirring blade 9 is provided on the outer circumferential surface of the rotating part 24, and the second stirring blade 9 is set at a height located in the middle of the slurry mixing tank 1.
[0031] In this way, when mixing the slurry, the rotating rotating part 24 drives the second stirring blade 9 to rotate, thereby stirring the slurry located in the middle of the slurry mixing tank 1. At the same time, in cooperation with the first stirring blade 6, the slurry in the slurry mixing tank 1 can be rotated more stably, which is conducive to the upward movement of the slurry along the guide sheet 3, forming a slurry flow from bottom to top.
[0032] In this embodiment, a protective sleeve 10 is provided on the rotating shaft 4 to protect the rotating shaft 4 and reduce the friction between the slurry and the rotating shaft 4 , thereby effectively extending the service life of the rotating shaft 4 .
[0033] In this embodiment, the inner diameter of the guide pipe 2 is three to seven times the outer diameter of the rotating shaft 4 , ensuring that the slurry can smoothly flow downward through the guide cavity 21 .
[0034] In this embodiment, the lower end of the rotating shaft 4 is rotatably connected to the bottom of the slurry mixing tank 1. In this way, the upper end of the rotating shaft 4 is supported and limited by the first connecting rod 8, and the lower end of the rotating shaft 4 is supported and limited by the slurry mixing tank 1, which is beneficial to improve the coaxiality of the rotating shaft 4, making it rotate more smoothly and less prone to bending.
[0035] In this embodiment, the size of the discharge gap 23 is larger than the size of the centrifugal stirring blade 7, which is conducive to the passage of the slurry.
[0036] While various embodiments of the present invention have been described above, the above descriptions are illustrative and non-exhaustive, and are not intended to be limiting of the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to existing technologies, or to enable others skilled in the art to understand the embodiments disclosed herein.
Claims
1. A slurry mixing tank for metal ore flotation, characterized by: It comprises a slurry mixing tank (1), a material guide pipe (2), a material guide sheet (3), and a rotating shaft (4); A rotating shaft (4) is rotatably mounted in the slurry mixing tank (1), the lower end of the rotating shaft (4) extending downward to the bottom of the slurry mixing tank (1), a rotating disk (5) is fixedly mounted on the lower end of the rotating shaft (4), first stirring blades (6) are arranged at intervals on the circumferential surface of the rotating disk (5), and centrifugal stirring blades (7) are arranged at intervals on the top surface of the rotating disk (5) around its circumference. A material guide tube (2) is provided on the outer sleeve of the rotating shaft (4), a material guide cavity (21) is provided between the rotating shaft (4) and the material guide tube (2), the material guide cavity (21) extends downward to above the rotating disk (5), a material feed port (22) is provided at the top of the material guide tube (2), and a material discharge gap (23) is provided between the bottom of the material guide tube (2) and the rotating disk (5); A spiral material guide piece (3) is provided on the inner side wall of the slurry mixing tank (1).
2. The slurry mixing tank for metal ore flotation according to claim 1, characterized in that: The material guide pipe (2) includes a rotating portion (24) and a fixed portion (25), wherein the fixed portion (25) is located at the top and is fixedly connected to the slurry mixing tank (1) via a first connecting rod (8), and the feed port (22) is provided on the fixed portion (25); the upper end of the rotating portion (24) is rotatably connected to the fixed portion (25), and the rotating portion (24) is also fixedly connected to the rotating shaft (4) via a second connecting rod (26); A second stirring blade (9) is provided on the outer circumferential surface of the rotating portion (24).
3. The slurry mixing tank for metal ore flotation according to claim 1, characterized in that: A protective sleeve (10) is sleeved on the rotating shaft (4).
4. The slurry mixing tank for metal ore flotation according to claim 1, characterized in that: The inner diameter of the material guide tube (2) is three to seven times the outer diameter of the rotating shaft (4).
5. The slurry mixing tank for metal ore flotation according to claim 1, characterized in that: The lower end of the rotating shaft (4) is rotatably connected to the bottom of the slurry mixing tank (1).
6. The slurry mixing tank for metal ore flotation according to claim 1, characterized in that: The size of the discharge gap (23) is larger than the size of the centrifugal stirring blade (7).