Beneficiation sample mixing machine for laboratory
By designing an automated prototype mixer for ore dressing laboratory, the problem of time-consuming and labor-intensive preparation of dry ore samples and difficulty in separation of medium and large particles is solved, and sample uniformity and subsequent operations are achieved.
Patent Information
- Application Number
- CN202420714450.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-09
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-04-09
AI Technical Summary
The ore dressing laboratory needs to mix samples manually multiple times during the preparation of dry ore samples, which is time-consuming and labor-intensive, and it is difficult to separate medium and large particles that do not meet the standards, affecting subsequent flotation operations.
Design a laboratory ore mixing prototype, including a mixing barrel body, a mixing motor, a mixing rod and screw rotor, and is equipped with a separator screen and metal plate to achieve automated sample mixing and particle screening.
It realizes single-handed and convenient dry ore sample mixing to ensure sample uniformity and avoids interfering with subsequent flotation operations by medium and large particles.
Smart Images
Figure CN222677889U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pretreatment of dry ore samples in laboratories of the ore dressing industry, in particular to an ore dressing sample mixer for laboratories. Background Art
[0002] At present, the preparation of dry ore samples in the mineral processing laboratory requires manual mixing with a shovel after crushing. Generally, it takes thirteen times or more to meet the sampling standard. The whole process has high requirements on manpower. Especially when a large number of samples are required, it is often necessary for multiple people to take turns to mix the ore to ensure the uniformity of the ore sample. The whole process is time-consuming and laborious. In addition, it is difficult to separate the medium and large particles that do not meet the standards in the mineral particles during the mixing process. In the subsequent flotation grinding, these large particles are also difficult to grind. In the flotation test, they will also block the flotation machine's inflation holes or jam the stirring wheel, causing trouble for the flotation operation.
[0003] In view of this, it is necessary to design an improved laboratory mineral processing mixer to solve the above problems. Utility Model Content
[0004] The utility model aims to provide a laboratory mineral processing mixer which is easy to use, can avoid unrepresentative sampling and can be operated by a single person.
[0005] In order to achieve the above-mentioned purpose of the utility model, the utility model provides a laboratory mineral processing mixer, including a stirring barrel main body, a support frame arranged on the stirring barrel main body, a stirring motor, a stirring rod driven by the stirring motor and a spiral rotor arranged on the stirring rod; the laboratory mineral processing mixer also includes a stirring shaft stabilizing device mounted on the stirring rod, a screen arranged on the inner wall of the stirring barrel main body and a plurality of metal plates; the bottom of the stirring barrel main body is provided with a discharge port and a ore discharge valve connected to the discharge port.
[0006] As a further improvement of the present invention, the longitudinal cross-section of the mixing barrel body is U-shaped, and the discharge port is arranged at the lowest point of the mixing barrel body.
[0007] As a further improvement of the present invention, the stirring shaft stabilizing device includes a middle bearing and three extensions extending outward from the outer peripheral wall of the bearing, and the three extensions are arranged at equal intervals.
[0008] As a further improvement of the present invention, the other ends of the three extensions are welded to the inner wall of the mixing barrel body.
[0009] As a further improvement of the present invention, the bearing sleeve is arranged on the stirring rod.
[0010] As a further improvement of the present invention, the number of the metal plates is six, and the six metal plates are welded on the inner wall of the mixing barrel body at equal intervals.
[0011] As a further improvement of the present invention, the partition screen is arranged in a columnar shape with an open upper end, and the partition screen includes a columnar frame, a metal screen arranged on the columnar frame, and a hook for hanging the partition screen on the inner wall of the mixing barrel body.
[0012] As a further improvement of the utility model, the horizontal height at which the highest point of the spiral rotor is located is lower than the horizontal height at which the stirring shaft stabilizing device is located.
[0013] As a further improvement of the present invention, the horizontal height of the bottom of the partition screen is higher than the horizontal height of the stirring shaft stabilizing device.
[0014] As a further improvement of the present invention, the length of the projection of the spiral rotor on the horizontal plane is smaller than the distance between any two of the metal plates.
[0015] The beneficial effects of the utility model are:
[0016] The utility model provides a laboratory mineral processing mixer. A partition screen is arranged on the inner wall of a stirring barrel body, and the screen can be a screen with any mesh number. The partition screen is connected to the inner wall of the stirring barrel through a hook to separate out medium and large particles that do not meet the requirements in the dry ore, so as to prevent troubles to subsequent flotation operations. At the same time, a stirring shaft stabilizing device is arranged on the stirring rod to prevent the stirring rod from swinging irregularly due to excessively fast rotation speed. The lower part of the spiral rotor is close to the barrel bottom of the stirring barrel body, and the upper part does not exceed the installation position of the stirring shaft stabilizing device. A plurality of metal plates are evenly welded on the inner wall of the stirring barrel body, so that the ore sample in the barrel moves disorderly, thereby ensuring the uniformity of the sample. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 The utility model is a schematic diagram of the structure of a laboratory mineral processing mixer.
[0018] Figure 2 for Figure 1 Schematic diagram of the structure of the screen.
[0019] Figure 3 for Figure 1 Schematic diagram of the structure of the stirring shaft stabilization device.
[0020] Figure 4 for Figure 1 Schematic diagram of the structure of the spiral rotor.
[0021] Reference numerals
[0022] 100- Laboratory mineral processing mixer; 1- metal plate, 2- stirring barrel body, 3- support frame, 4- stirring motor, 5- screen, 51- columnar skeleton, 6- stirring shaft stabilizing device, 8- ore discharge valve, 9- bracket, 10- metal screen, 11- hook, 12- bearing, 13- extension part, 14- stirring rod, 15- spiral rotor. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.
[0024] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.
[0025] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.
[0026] See also Figures 1 to 4 As shown, the utility model provides a laboratory mineral processing mixer 100, comprising a mixing barrel body 2, a support frame 3 arranged on the mixing barrel body 2, a mixing motor 4, a mixing rod 14 driven by the mixing motor 4, a spiral rotor 15 arranged on the mixing rod 14, a mixing shaft stabilizing device 6 sleeved on the mixing rod 14, a screen 5 arranged on the inner wall of the mixing barrel body 2, and a plurality of metal plates 1. A discharge port and a discharge valve 8 connected to the discharge port are arranged at the bottom of the mixing barrel body 2. In this way, the utility model adopts the spiral rotor 15 and the metal plate 1 installed on the inner wall of the mixing barrel body 2 to maximize the uniformity of the ore sample, and the screen 5 installed on the upper part of the mixing barrel body 2 can separate the medium and large granular minerals that do not meet the requirements, so as to achieve a more simple and uniform and representative dry ore sample.
[0027] Specifically, the bottom of the mixing barrel body 2 is arc-shaped, that is, the longitudinal cross-section of the mixing barrel body 2 is U-shaped, the discharge port is set at the lowest point of the mixing barrel body 2, and the opening / closing of the discharge port is controlled by the ore discharge valve 8.
[0028] The support frame 3 is welded to the upper part of the stirring barrel body 2, the stirring motor 4 is connected to the stirring rod 14, the stirring rod 14 is vertically arranged, and the lower part of the spiral rotor 15 is close to the bottom of the stirring barrel body 2; the stirring motor 4 drives the stirring rod 14 and the spiral rotor 15 to stir the ore sample.
[0029] The stirring shaft stabilizing device 6 is made of metal. The stirring shaft stabilizing device 6 includes a central bearing 12 and three extensions 13 extending outward from the outer peripheral wall of the bearing 12. The three extensions 13 are equidistantly arranged on the outer peripheral wall of the bearing 12. The bearing 12 is sleeved on the stirring rod 14, that is, the bearing 12 is connected to the stirring rod 14, and the other ends of the three extensions 13 are welded to the inner wall of the stirring barrel body 2. This arrangement prevents the stirring rod 14 from swinging irregularly due to excessive rotation speed.
[0030] The screen 5 is arranged in a columnar shape with an opening at the upper end. The screen 5 comprises a columnar frame 51, a metal screen 10 arranged on the columnar frame 51, and a hook 11 for hanging the screen 5 on the inner wall of the mixing barrel body 2. The metal screen 10 can be replaced with a screen of any mesh number. The screen 5 is connected to the inner wall of the mixing barrel body 2 through the hook 11 to separate medium and large particles in the dry ore to prevent trouble for subsequent flotation operations.
[0031] In this embodiment, the number of metal plates 1 is six, and the six metal plates 1 are welded at equal intervals on the inner wall of the mixing barrel body 2. Such an arrangement ensures that the mineral particles can move disorderly during the mixing process, thereby ensuring the uniformity of the ore sample.
[0032] In this embodiment, the highest point of the spiral rotor 15 is located at a lower level than the stirring shaft stabilizer 6. The bottom of the screen 5 is located at a higher level than the stirring shaft stabilizer 6. The spiral rotor 15 does not touch the six metal plates 1 when rotating, that is, the length of the projection of the spiral rotor 15 on the horizontal plane is less than the distance between any two metal plates 1.
[0033] Three brackets 9 with universal wheels are evenly welded on the bottom of the mixing barrel body 2 to facilitate the movement of the mixer.
[0034] The working principle of the laboratory ore dressing mixer 100 of the utility model is as follows:
[0035] A screen 5 is mounted on the inner wall of the mixing barrel body 2, and all the crushed dry ore samples are poured into the screen 5 to separate out particles that do not meet the requirements. The stirring motor 4 is turned on to drive the stirring rod 14 to work, and the spiral rotor 15 stirs the dry ore sample. The six metal plates 1 evenly welded on the barrel wall work together to make the ore sample move in a disordered manner, ensuring the uniformity of the ore sample. After stirring for a suitable time, the ore discharge valve 8 at the bottom is opened, and gravity is used to make the dry ore in the barrel naturally form a pile cone. After all the ore is discharged, the stirring motor 4 is turned off, and the sample mixer is removed at the same time. The sampling and bagging operations are carried out using the quartering method or the ring picking method.
[0036] In summary, the laboratory mineral processing mixer 100 provided by the utility model separates out particles that do not meet the requirements through the screen 5, and at the same time, a stirring shaft stabilizing device 6 is provided on the stirring rod 14 to prevent the stirring rod 14 from swinging irregularly due to excessive rotation speed, and a plurality of metal plates 1 are provided on the inner wall of the stirring barrel body 2 to further make the mineral sample move disorderly, thereby ensuring the uniformity of the mineral sample.
[0037] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model.
Claims
1. A laboratory mineral processing mixer, characterized by: It includes a stirring barrel main body, a support frame arranged on the stirring barrel main body, a stirring motor, a stirring rod driven by the stirring motor and a spiral rotor arranged on the stirring rod; the laboratory mineral processing mixer also includes a stirring shaft stabilizing device sleeved on the stirring rod, a screen arranged on the inner wall of the stirring barrel main body and a plurality of metal plates; the bottom of the stirring barrel main body is provided with a discharge port and a ore discharge valve connected to the discharge port.
2. The laboratory mineral processing mixer according to claim 1, characterized in that: The longitudinal cross section of the stirring barrel body is U-shaped, and the discharge port is arranged at the lowest point of the stirring barrel body.
3. The laboratory mineral processing mixer according to claim 1, characterized in that: The stirring shaft stabilizing device comprises a middle bearing and three extension parts extending outward from the outer peripheral wall of the bearing, and the three extension parts are arranged at equal intervals.
4. The laboratory mineral processing mixer according to claim 3, characterized in that: The other ends of the three extensions are welded to the inner wall of the mixing barrel body.
5. The laboratory mineral processing mixer according to claim 4, characterized in that: The bearing sleeve is arranged on the stirring rod.
6. The laboratory mineral processing mixer according to claim 1, characterized in that: The number of the metal plates is six, and the six metal plates are welded on the inner wall of the mixing barrel body at equal intervals.
7. The laboratory mineral processing mixer according to claim 1, characterized in that: The partition screen is arranged in a columnar shape with an open upper end, and comprises a columnar frame, a metal screen arranged on the columnar frame, and a hook for hanging the partition screen on the inner wall of the mixing barrel body.
8. The laboratory mineral processing mixer according to claim 1, characterized in that: The height at which the highest point of the spiral rotor is located is lower than the height at which the stirring shaft stabilizing device is located.
9. The laboratory mineral processing mixer according to claim 8, characterized in that: The bottom of the partition screen is located at a level higher than the level of the stirring shaft stabilizing device.
10. The laboratory mineral processing mixer according to claim 8, characterized in that: The length of the projection of the spiral rotor on the horizontal plane is smaller than the distance between any two of the metal plates.