Flotation agent feeding mechanism for laboratory flotation machine

Abstract

The utility model discloses a flotation agent feeding mechanism for a laboratory flotation machine, which comprises the laboratory flotation machine, a slurry tank is arranged on the laboratory flotation machine, a feeding mechanism is arranged at the bottom of the slurry tank, the feeding mechanism comprises a bottom bin, a self-closing device and a one-way valve, the bottom bin is arranged at the bottom of the slurry tank, and a plurality of flow channels are arranged between the bottom bins. The self-closing device is installed at the discharging end of the flow channel, and the feeding end and the discharging end of the one-way valve are communicated with the discharging end of an external metering pump and the feeding end of the bottom bin respectively. According to the feeding mechanism, a bottom feeding mode is adopted, the number of dosing points is large, the dosing points are uniform, it is guaranteed that a reagent can act on materials from the bottommost portion, and the phenomena of reaction dead angles and insufficient flotation are avoided; and 2, the flotation agent is uniformly dispersed in the material through the feeding mechanism, so that the flotation effect is ensured. And the reaction time is greatly saved. In addition, the self-closing device can play a role in preventing backflow when the flotation agent is supplied.

Description

Technical Field

[0001] This utility model relates to the field of laboratory flotation machine technology, and in particular to the flotation agent feeding mechanism for laboratory flotation machines. Background Technology

[0002] Flotation is the most widely used method in mineral separation. It achieves separation by circulating reagents through the slurry, altering the interfacial properties of the minerals. It is a crucial aspect of mineral separation research, and the research and development of flotation equipment is of great significance for improving the comprehensive recovery and utilization of minerals. Hanging flotation machines are the most commonly used and important equipment in mineral processing laboratories for studying mineral flotation. They primarily perform operations such as stirring, separating, and refining small samples to conduct ore beneficiation studies and various flotation tests, ultimately determining whether the target mineral has recycling value. Because flotation reagents achieve the flotation effect by generating foam, they float upwards after entering the water.

[0003] In existing technologies, conventional laboratory flotation machines, such as the Chinese utility model patent with publication number CN213644520U entitled "A Laboratory Flotation Machine with Hanging Tank that Does Not Require Disassembly and Cleaning," utilize water and reagents injected into a hollow axial hanging tank. However, during extensive testing, this injection method was found to have two limitations: first, the reagent injection point is fixed and unique; second, the reagent cannot reach the very bottom of the hanging tank. These limitations result in poor reagent efficacy and excessively long flotation stirring times. Utility Model Content

[0004] The purpose of this invention is to provide a flotation reagent feeding mechanism for a laboratory flotation machine, in order to solve the problems of the limitations of the existing reagent injection method in laboratory flotation machines, such as the fixed reagent injection point and the inability of the single primary reagent to reach the bottom of the tank, resulting in poor reagent efficacy and excessively long flotation stirring time.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A flotation agent feeding mechanism for a laboratory flotation machine includes a laboratory flotation machine with a slurry tank. A feeding mechanism is provided at the bottom of the slurry tank. The feeding mechanism includes a bottom chamber, a self-closing device, and a one-way valve. The bottom chamber is installed at the bottom of the slurry tank, and multiple flow channels are provided between the bottom chambers. The self-closing device is installed at the discharge end of the flow channels. The inlet and outlet ends of the one-way valve are respectively connected to the outlet end of an external metering pump and the inlet end of the bottom chamber.

[0007] A further technical solution is: the self-closing device is a flat-mouthed flexible tube, and multiple reinforcing ribs are symmetrically arranged on both sides of the flat-mouthed flexible tube.

[0008] A further technical solution is: the discharge end of the self-closing device is provided with a closing structure, the closing structure includes a left closing plate and a right closing plate that is adapted to the left closing plate, the left closing plate and the right closing plate are inclined to each other, and ear plates that abut against the sides of the right closing plate are provided on both sides of the right closing plate.

[0009] A further technical solution is that the top of the left closing plate is lower than the top of the right closing plate.

[0010] A further technical solution is that the vertical cross-section of the left closing plate and the right closing plate is a cone shape with a smaller top and a larger bottom.

[0011] A further technical solution is that a protective sleeve is provided outside the self-closing device.

[0012] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0013] This invention proposes a flotation reagent feeding mechanism for a laboratory flotation machine. This feeding mechanism employs a bottom feeding method with multiple and uniform reagent feeding points. Firstly, it ensures that the reagent acts on the material from the bottom, avoiding reaction dead zones and insufficient flotation. Secondly, the flotation reagent is evenly dispersed in the material through this feeding mechanism, ensuring effective flotation. Furthermore, it significantly reduces reaction time. Additionally, the self-closing device prevents backflow during reagent supply. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a flotation agent feeding mechanism for a laboratory flotation machine according to the present invention.

[0015] Figure 2 This utility model Figure 1 A schematic diagram of the structure of the self-closing device.

[0016] Figure 3 This utility model Figure 1 A schematic diagram of the self-closing device when it is closed.

[0017] Figure 4 This utility model Figure 1 A schematic diagram of the self-closing device when it is open.

[0018] Reference numerals: 1. Laboratory flotation machine; 2. Laboratory flotation machine; 3. Feeding mechanism; 4. Bottom hopper; 5. Automatic closing device; 6. One-way valve; 7. Flow channel; 8. Reinforcing rib; 9. Closure structure; 10. Left closing plate; 11. Right closing plate; 12. Ear plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example 1:

[0026] This implementation example Figure 1 As shown, the flotation agent feeding mechanism for a laboratory flotation machine includes a laboratory flotation machine 1, which has a slurry tank 2. A feeding mechanism 3 is provided at the bottom of the slurry tank 2. The feeding mechanism 3 includes a bottom chamber 4, a self-closing device 5, and a one-way valve 6. The bottom chamber 4 is installed at the bottom of the slurry tank 2, and multiple flow channels 7 are provided between the bottom chambers 4. The self-closing device 5 is installed at the discharge end of the flow channel 7. The inlet and outlet ends of the one-way valve 6 are respectively connected to the discharge end of an external metering pump and the inlet end of the bottom chamber 4.

[0027] The crushed material and water are added to the slurry tank together. Then, the flotation reagent (hereinafter referred to as reagent) is pumped to the one-way valve 6 by an external metering pump. The reagent enters and fills the cavity of the bottom tank 4. Under a certain hydraulic pressure, the reagent can open the self-closing device 5 to achieve full mixing and reaction between the reagent and the slurry in the tank, ensuring the efficacy of the reagent and accelerating the flotation process.

[0028] Example 2:

[0029] Based on the above embodiments, this embodiment, for example Figure 2 As shown, the self-closing device 5 is a flat-mouthed flexible tube, and multiple reinforcing ribs 8 are symmetrically arranged on both sides of the flat-mouthed flexible tube.

[0030] When the agent has no hydraulic pressure or low hydraulic pressure on the self-closing device 5, the two reinforcing ribs 8 have a certain degree of restoring elasticity. This elasticity will cause the two sides of the flat hose to come closer and fit together, achieving a self-closing effect. More importantly, because of the length and soft elasticity of the flat hose, even if some fine mud and sand (large particles will be blocked by the outlet filter of the self-closing device 5) enters, it will not cause the self-closing device 5 to close too tightly, resulting in backflow or leakage.

[0031] Example 3:

[0032] Based on the above embodiments, this embodiment, for example Figure 3 and Figure 4 As shown, the discharge end of the self-closing device 5 is provided with a closing structure 9. The closing structure 9 includes a left closing plate 10 and a right closing plate 11 that is adapted to the left closing plate 10. The left closing plate 10 and the right closing plate 11 are inclined to each other. Ear plates 12 that abut against the sides of the right closing plate 11 are provided on both sides of the right closing plate 11.

[0033] The left closing plate 10 and the right closing plate 11 will approach and press against each other due to their own elasticity. Under external hydraulic pressure, they can close very tightly, which, together with the self-closing device 5, achieves a double closing effect and reduces the closing pressure of the self-closing device 5.

[0034] Preferably, the top of the left closing plate 10 is lower than the top of the right closing plate 11.

[0035] Ensure that the right closing plate 11 can tightly cover the top of the left closing plate 10.

[0036] Preferably, the vertical cross-sections of the left closing plate 10 and the right closing plate 11 are tapered, with the top being smaller and the bottom being larger.

[0037] Under different hydraulic pressures or different material self-resetting elasticity, the left closing plate 10 and the right closing plate 11 can achieve closure within a large bending angle range.

[0038] Preferably, a protective sleeve is provided outside the self-closing device 5.

[0039] The protective sleeve can prevent the self-closing device 5 from shaking during stirring, thus affecting the closing effect.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A reagent feeding mechanism for laboratory flotation machines, comprising a laboratory flotation machine (1) having a pulp tank (2) on it, characterised in that: The bottom of the pulp tank (2) is provided with a feeding mechanism (3), the feeding mechanism (3) comprises a bottom bin (4), a self-closer (5) and a one-way valve (6), the bottom bin (4) is installed on the bottom of the pulp tank (2), and a plurality of flow channels (7) are arranged between the bottom bin (4) and the bottom bin (4), the self-closer (5) is installed on the discharging end of the flow channel (7), and the feeding end and the discharging end of the one-way valve (6) are respectively communicated with the discharging end of an external metering pump and the feeding end of the bottom bin (4).

2. A reagent dosing mechanism for a laboratory flotation machine according to claim 1, characterized in that: The self-closer (5) is a flat mouth hose, and a plurality of reinforcing ribs (8) are symmetrically arranged on the two sides of the flat mouth hose.

3. A reagent dosing mechanism for a laboratory flotation machine according to claim 1, characterized in that: The discharging end of the self-closer (5) is provided with a closing structure (9), the closing structure (9) comprises a left closing plate (10) and a right closing plate (11) which is matched with the left closing plate (10), the left closing plate (10) and the right closing plate (11) are arranged to be inclined to each other, and the two sides of the right closing plate (11) are provided with ear plates (12) which are tightly abutted with the two sides of the right closing plate (11).

4. A reagent dosing mechanism for a laboratory flotation machine according to claim 3, characterised in that: The top of the left closing plate (10) is lower than the top of the right closing plate (11).

5. A reagent dosing mechanism for a laboratory flotation machine according to any one of claims 3 or 4, characterised in that: The vertical section of the left closing plate (10) and the right closing plate (11) is a taper shape which is small at the top and large at the bottom.

6. A reagent dosing mechanism for a laboratory flotation machine according to claim 1, characterized in that: The self-closer (5) is externally provided with a guard cylinder.

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