Online sampler suitable for flotation machine

Abstract

The utility model discloses an online sampler suitable for a flotation machine, and belongs to the technical field of flotation machine related equipment. The fixing device is arranged on the outer side wall of the hollow pipe; the hose is matched with the hollow pipe in an inserted mode, one end of the hose is used for being inserted below the ore pulp liquid level in the flotation tank, and the other end of the hose is located on the outer side of the flotation tank and used for guiding out ore pulp. The device can be fixed on the wall of the flotation tank of the flotation machine, so that the hands of an operator do not need to be contacted with running equipment, and the safety is improved. The hollow pipe of the sampler is designed to be of a double-pipe structure, the length (height) of the hollow pipe is adjustable, the height of the hollow pipe can be adjusted according to flotation cells of different specifications and models, and applicability is wide. According to the utility model, the sampling depth can be adjusted at any time according to the experiment phenomenon, and the experiment condition can be better reflected, so that scientific researchers can master the experiment condition more accurately, and the scientific researchers can adjust the experiment parameters in time.

Description

Technical Field

[0001] This utility model relates to the technical field of flotation machine related equipment, and more specifically, to an online sampler suitable for flotation machines. Background Technology

[0002] Flotation is a method of separating minerals based on the selective adsorption of flotation reagents by mineral particles due to differences in their surface physicochemical properties, and then by the buoyancy of mineralized bubbles. As a common mineral processing method, flotation is characterized by its economic efficiency, and it is particularly suitable for minerals with low grade and fine particle size.

[0003] With societal development, mineral resources are becoming increasingly scarce, fine-grained, and complex, and their natural endowment is deteriorating. Therefore, flotation is playing an increasingly important role in mineral resource recovery. Flotation machines are crucial equipment for the flotation process, playing a vital role in both laboratory research and field production. As those skilled in the art know, laboratory research guides field production, and field production drives laboratory research; the two are mutually reinforcing. However, laboratory research often simulates the discontinuous process of field production. Sample collection is subject to fluctuations, and because many samples need to be examined during experiments, the sampling depth for different groups of samples is difficult to maintain consistently. Different operators, due to varying operating techniques, can amplify these fluctuations, hindering experimental stability. Utility Model Content

[0004] (a) Technical issues:

[0005] In summary, how to provide an online sampler with stable and adjustable sampling height suitable for laboratory flotation machines has become a problem that urgently needs to be solved by those skilled in the art.

[0006] (II) Technical Solution:

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] This invention provides an online sampler suitable for flotation machines. In this invention, the online sampler for flotation machines includes:

[0009] The hollow tube, in use, is vertically arranged relative to the flotation cell of the flotation machine;

[0010] A fixing device is disposed on the outer side wall of the hollow tube and is used to fix the hollow tube to the wall of the flotation cell.

[0011] A flexible tube is inserted into the hollow tube. One end of the flexible tube is inserted below the surface of the slurry in the flotation cell, and the other end of the flexible tube is located outside the flotation cell for discharging the slurry.

[0012] Preferably, in the online sampler for flotation machines provided by this utility model, the hollow tube has an adjustable length.

[0013] Preferably, in the online sampler for flotation machines provided by this utility model, when the hollow tube is set on the flotation cell by the fixing device, one end of the hollow tube is located below the surface of the slurry in the flotation cell, and the other end of the hollow tube protrudes relative to the flotation cell.

[0014] Preferably, in the online sampler for flotation machines provided by this utility model, the length of the portion of the hollow tube protruding from the flotation cell is 80-120 mm.

[0015] Preferably, in the online sampler for flotation machines provided by this utility model, the hollow tube has a double-tube structure, the hollow tube includes an inner hollow tube and an outer hollow tube, the inner hollow tube is assembled inside the outer hollow tube and can slide relative to the outer hollow tube to change the overall length of the hollow tube; the fixing device is fixedly installed on the outer hollow tube.

[0016] Preferably, in the online sampler for flotation machines provided by this utility model, the total length of the flexible tube is 1.5 to 2 times the maximum length of the hollow tube.

[0017] Preferably, in the online sampler for flotation machines provided by this utility model, the fixing device is a hook structure, and the fixing device and the hollow tube form a U-shaped groove for clamping the hollow tube onto the wall of the flotation cell.

[0018] Preferably, in the online sampler for flotation machines provided by this utility model, the hollow tube is a stainless steel tube; the fixing device is made of iron or steel; and the fixing device is welded to the hollow tube.

[0019] Preferably, in the online sampler for flotation machines provided by this utility model, the hose is a high-temperature resistant and acid- and alkali-resistant rubber or silicone hose.

[0020] Preferably, in the online sampler for flotation machines provided by this utility model, when the hollow tube is disposed on the flotation cell, a heat-insulating sleeve is provided on the section of the hollow tube that protrudes relative to the flotation cell.

[0021] (III) Beneficial Effects:

[0022] As described above, this utility model provides an online sampler suitable for flotation machines. The online sampler includes: a hollow tube, which is vertically positioned relative to the flotation cell in use; a fixing device, located on the outer wall of the hollow tube, for fixing the hollow tube to the wall of the flotation cell; and a flexible tube, which is inserted into the hollow tube, with one end inserted below the surface of the slurry in the flotation cell and the other end located outside the flotation cell for slurry discharge. Through this structural design, after the online sampler is put into use, it can be fixed to the wall of the flotation cell, eliminating the need for operator contact with the equipment and improving safety. Furthermore, the hollow tube of this utility model is designed as a double-tube structure with adjustable length (height). The height of the hollow tube can be adjusted according to different specifications of flotation cells, enabling multi-purpose use, high cost-effectiveness, and wide applicability. Meanwhile, this invention allows for the adjustment of sampling depth at any time based on experimental phenomena, which can better reflect the experimental situation, enabling researchers to more accurately grasp the experimental situation and facilitate timely adjustment of experimental parameters. Attached Figure Description

[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. Wherein:

[0024] Figure 1 This is a schematic diagram of the structure of an online sampler for flotation machines in use, according to one embodiment of the present invention.

[0025] exist Figure 1 In the diagram, the correspondence between component names and reference numerals is as follows:

[0026] 1. Hollow tube; 2. Flotation cell; 3. Fixing device; 4. Flexible hose. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation of the present invention and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present invention without departing from the scope or spirit of the invention. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present invention encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0028] In the description of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected" and "linked" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0029] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of an online sampler for flotation machines in use, according to one embodiment of the present invention.

[0030] This invention provides an online sampler suitable for flotation machines. The flotation machine includes a flotation cell 2 for loading slurry. The online sampler provided by this invention is used in conjunction with the flotation cell 2 and can perform online sampling of the slurry after being installed on the flotation cell 2.

[0031] In this invention, the online sampler suitable for flotation machines comprises the following components:

[0032] 1. Hollow tube 1.

[0033] Hollow tube 1 is the main structure of this utility model and is used to be fixedly installed on flotation cell 2. Specifically, in use, hollow tube 1 is vertically installed relative to flotation cell 2 of flotation machine (flotation cell 2 is preferably a rectangular cell structure. In use, flotation cell 2 is placed horizontally on the ground or workbench. Flotation cell 2 includes four cell walls and a cell bottom).

[0034] In one embodiment of this utility model, the hollow tube 1 is a hollow tube structure, used for the passage of the flexible tube 4 and providing support for the flexible tube 4. In another embodiment of this utility model, the hollow tube 1 is a hollow tube structure, and the hollow tube 1 is a length-adjustable tube structure. Specifically, the hollow tube 1 is a double tube structure, including a hollow inner tube and a hollow outer tube. The hollow inner tube is assembled inside the hollow outer tube (the outer surface of the hollow inner tube and the inner surface of the hollow outer tube maintain a frictional sliding state, that is, the hollow inner tube can slide relative to the hollow outer tube, but friction is maintained while sliding. In this way, after the length of the hollow tube 1 is adjusted, the relative posture between the hollow inner tube and the hollow outer tube can remain unchanged through the existence of this friction force) and can slide relative to the hollow outer tube to change the overall length of the hollow tube 1. When using a double-tube structure, the present invention fixes the fixing device 3 (the fixing device 3 is the structure used in the present invention to fix the hollow tube 1 onto the flotation cell 2) on the outer tube of the hollow tube.

[0035] Furthermore, this invention proposes the following structural optimizations for the hollow tube 1: After the hollow tube 1 is fixedly mounted on the flotation cell 2, the upper end of the hollow tube 1 protrudes relative to the flotation cell 2, and the length of the protruding section of the hollow tube 1 is set to 80mm-120mm, which facilitates the handling of the hollow tube 1. Further, when the hollow tube 1 is mounted on the flotation cell 2, a heat-insulating sleeve is provided on the protruding section of the hollow tube 1 relative to the flotation cell 2. Of course, this invention can also provide a handle near the top of the hollow tube 1, making it easier to handle the hollow tube 1. The handle is preferably a metal handle structure, welded to the hollow tube 1 (outer tube of the hollow tube).

[0036] Specifically, in use, when the hollow tube 1 is installed on the flotation cell 2 by the fixing device 3, one end of the hollow tube 1 is below the surface of the slurry in the flotation cell 2, and the other end of the hollow tube 1 protrudes relative to the flotation cell 2.

[0037] 2. Fixing device 3.

[0038] The fixing device 3 is a structure in this invention used to fix the hollow tube 1 to the flotation cell 2. In this invention, the fixing device 3 is disposed on the outer wall of the hollow tube 1 (when the hollow tube 1 adopts a double tube structure, the fixing device 3 is disposed on the outer tube of the hollow tube) and is used to fix the hollow tube 1 to the wall of the flotation cell 2.

[0039] The fixing device 3 is a hook structure (in the use state, the fixing device 3 is an inverted hook structure). The fixing device 3 and the hollow tube 1 form a U-shaped groove (a U-shaped groove structure with the opening facing downwards) for clamping the hollow tube 1 onto the wall of the flotation cell 2.

[0040] In another embodiment of this utility model, the fixing device 3 can also be a clamp structure, which can clamp the wall of the flotation cell 2 to fix the hollow tube 1.

[0041] The hollow tube 1 and the fixing device 3 can be fixedly connected, specifically by welding. Alternatively, the fixing device 3 and the hollow tube 1 can be connected by a clamp. Loosening the clamp allows adjustment of the hollow tube 1 (adjusting the distance between the bottom of the hollow tube 1 and the bottom of the flotation cell 2). Based on this embodiment, the present invention can also provide graduation markings on the hollow tube 1, with different graduation markings for different flotation machine models. By adjusting the relative position of the fixing device 3 and the graduation markings, the distance between the bottom of the hollow tube 1 and the bottom of the flotation cell 2 can be precisely adjusted.

[0042] 3. Hose 4.

[0043] The flexible hose 4 is inserted into the hollow tube 1. One end of the flexible hose 4 is inserted below the surface of the slurry in the flotation cell 2, and the other end of the flexible hose 4 is located outside the flotation cell 2 for slurry discharge. In this invention, the overall length of the flexible hose 4 is greater than the maximum length of the hollow tube 1; specifically, the total length of the flexible hose 4 is 1.5 to 2 times the maximum length of the hollow tube 1. Specifically, the flexible hose 4 is made of high-temperature resistant and acid-alkali resistant rubber or silicone hose. The outer wall of the flexible hose 4 and the inner wall of the hollow tube 1 (the inner wall of the inner tube of the hollow tube) are in frictional sliding contact.

[0044] The materials selected for each of the above components are as follows: the hollow tube 1 is made of stainless steel; the fixing device 3 is made of iron or steel; the fixing device 3 is welded to the hollow tube 1.

[0045] This invention provides an online sampler suitable for use in laboratory flotation machines. The online sampler includes an adjustable-height stainless steel hollow tube 1 (adjustable height means the height of the hollow tube 1 is adjustable when installed on the flotation cell 2), a fixing device 3 (for fixing the hollow tube 1 to the flotation cell 2), and a flexible tube 4 that can be inserted into the hollow tube 1. The hollow tube 1 is preferably a stainless steel hollow tube 1, which is installed on the flotation cell 2. The height adjustment range of the hollow tube 1 is the height of the flotation cell 2 for different models of laboratory flotation machines plus a certain amount of height (that is, after the hollow tube 1 is fixed on the flotation cell 2, one end of the hollow tube 1 is below the surface of the slurry in the flotation cell 2, while the other end of the hollow tube 1 protrudes relative to the flotation cell 2, higher than the cell wall). This design facilitates the removal of the hollow tube 1. The hollow tube 1 has a long, straight, round tube structure, and its diameter is slightly larger than the diameter of the inserted flexible tube 4 (i.e., the inner diameter of the hollow tube 1 is slightly larger than the outer diameter of the flexible tube 4), facilitating the insertion of the flexible tube 4. The fixing device 3 is preferably a hook structure, which is welded to the hollow tube 1. The welding point is usually located on the outer wall of the hollow tube 1 near its upper end (the end protruding relative to the flotation cell 2), which can both fix it and not affect the flotation operation. The flexible tube 4 is a high-temperature resistant, reusable rubber or silicone tube, and its length is greater than the total height of the hollow tube 1 (i.e., the length of the flexible tube 4 is greater than the length of the hollow tube 1) to facilitate connection to the slurry receiving container.

[0046] In operation, the hollow tube 1 is vertically mounted on the flotation cell 2. The hollow tube 1 has a double-layered structure, and its height can be adjusted by pulling out one of the two tubes while the other remains fixed relative to the flotation cell 2. The inner tube has an inner diameter of 12±2mm and an outer diameter of 14±2mm, while the outer tube has an inner diameter of 16±2mm and an outer diameter of 18±2mm. The effective height (length) of the hollow tube 1 is 140~300mm+100mm, where 140~300mm represents the height range of different specifications of the flotation cell 2 for the two types of flotation machines currently used in the laboratory, and +100mm is the height of the part that the operator uses to grasp the tube during operation (i.e., the portion protruding from the flotation cell 2 is preferably 100mm). Both the inner and outer tubes of the hollow tube 1 undergo rust-proofing, corrosion-proofing, and high-temperature resistance treatment.

[0047] The fixing device 3 adopts a hook structure and is made of metal. It is welded to the hollow tube 1 and clamps the adjustable-height stainless steel hollow tube 1 onto the wall of the flotation cell 2 for fixation. The welding point of the fixing device 3 on the hollow tube 1 is 100mm downwards from the top of the hollow tube 1 (outer tube). In this invention, the fixing device 3 is made of iron or stainless steel and is treated for rust prevention, corrosion resistance, and high temperature resistance. The part that the operator's hand touches is heat-insulated (covered with a heat-insulating sleeve).

[0048] The flexible hose 4 is made of high-temperature resistant and acid / alkali resistant rubber or silicone hose, with a diameter of 10±2mm. The total length of the flexible hose 4 is 1.5 to 2 times the height of the hollow tube 1, ensuring both that the desired sampling depth can be reached and that it can be connected to the mineral sample receiver. With the sampling depth set, the sampler uses a bulb syringe to expel air and aligns it with the end of the flexible hose 4 connected to the mineral sample receiver to create a negative pressure channel that draws the mineral sample (slurry liquid) into the receiver.

[0049] The specific embodiments of this utility model are as follows:

[0050] Example 1: As Figure 1 As shown, a mineral sample was processed using a laboratory-grade XFD-12 type 2L (198mm deep) multi-cell flotation cell 2. The sampler was fixed to the wall of flotation cell 2, and the height of the hollow tube 1 was adjusted to 150mm. An 8mm inner diameter silicone tube was inserted into the hollow tube 1. The roughing tailings were sampled and sent for testing. Using the same mineral sample, under unchanged flotation conditions, and with the same operator, the sampling results were compared with those obtained using the original sampling method (handheld syringe suction of the mineral sample from flotation cell 2) and the sampler of this invention. See Table 1 for details.

[0051] Table 1 compares the test results of mineral samples taken using the original sampling method with those taken using the sampler of this utility model.

[0052]

[0053] Example 2: As Figure 1 As shown, a 2L (198mm deep) flotation cell 2 of a laboratory XFD-12 multi-cell flotation machine was used to process a mineral sample. The sampler was fixed to the wall of flotation cell 2, and the height of the hollow tube 1 was adjusted to 140mm, 150mm, and 160mm. An 8mm inner diameter silicone tube was inserted into the hollow tube 1. Samples of the roughing tailings were taken and sent for testing. Using the same mineral sample, under unchanged flotation conditions, and with the same operator, sampling was performed at different depths. Specific details are shown in Table 2.

[0054] Table 2 shows the sampling results at different sampling depths.

[0055]

[0056] Table 1 shows that, for the same ore feed, the same beneficiation conditions, and the same operator, the comparison of the test results of the ore samples taken by the two sampling methods within the same group reveals that the original sampling method resulted in larger fluctuations in the test results, making it difficult for the operator to adjust the test parameters based on the data. The sampler of this invention produces ore samples with smaller fluctuations and more stable test data, which is helpful for the operator to make adjustments. Table 2 shows that, in the same experiment, the test results of the ore samples differed at different sampling depths. This is related to the stirring force and the uniformity of stirring, and is normal. This indicates that the present invention can accurately obtain ore samples at different depths for the same experiment, and can better meet the test requirements.

[0057] The beneficial effects of this invention are as follows: In existing technologies, a rubber bulb is inserted below the slurry surface to extract mineral samples. However, the insertion depth of the rubber bulb is limited, resulting in insufficient representativeness of the samples and posing certain safety hazards. Furthermore, if multiple time-point samples are required during the experiment and are not processed promptly, a large number of rubber bulbs are consumed, making the experimental table cluttered. Using the online sampler provided by this invention, the device can be fixed to the wall of the flotation cell 2 of the flotation machine, eliminating the need for operators to have their hands in contact with the operating equipment, thus improving safety. Simultaneously, this invention designs the hollow tube 1 of the sampler as a double-tube structure. The length (height) of the hollow tube 1 is adjustable, allowing for adjustment of the height of the hollow tube 1 according to different specifications and models of flotation cells 2. This enables multi-purpose use, high cost-effectiveness, and wide applicability. Furthermore, this invention allows for real-time adjustment of the sampling depth based on experimental phenomena, better reflecting the experimental situation and enabling researchers to more accurately grasp the experimental conditions and adjust experimental parameters in a timely manner.

[0058] This utility model discloses an online sampler for a laboratory flotation machine, comprising an adjustable-height stainless steel hollow tube 1, a fixing device 3, and a flexible tube 4 that can be inserted into the hollow tube 1. In this utility model, the hollow tube 1 is mounted on the flotation cell 2 of the laboratory flotation machine and its height is adjustable. The hollow tube 1 is preferably made of stainless steel and undergoes rust-proofing, corrosion-resistant, and high-temperature-resistant treatment to ensure it can adapt to the pulp environment without affecting flotation. During use, the hollow tube 1 needs to be inserted into the flotation cell 2 to a certain depth below the pulp surface. The fixing device 3 connects and fixes the hollow tube 1 to the flotation cell 2, securing the hollow tube 1 to the cell wall without affecting flotation. The flexible tube 4 can be inserted into the hollow tube 1, with one end submerged in the pulp to a certain depth along with the hollow tube 1, and the other end extending out and connecting to a pulp receiving container. This utility model can determine different sampling depths for different mineral samples and can also perform sampling at different depths for the same mineral sample. The mineral samples taken have better stability and are more representative, which can provide more stable and detailed experimental data for relevant scientific research, thus facilitating the advancement of scientific research and ensuring its smooth progress.

[0059] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An online sampler suitable for flotation machines, characterized in that, include: Hollow tube (1), in use, the hollow tube is vertically arranged relative to the flotation cell (2) of the flotation machine; Fixing device (3), the fixing device is disposed on the outer side wall of the hollow tube, and is used to fix the hollow tube to the wall of the flotation cell; Hose (4), the hose is inserted into the hollow tube, one end of the hose is used to insert into the slurry in the flotation cell below the surface of the slurry, and the other end of the hose is located outside the flotation cell and is used to discharge the slurry.

2. The online sampler for flotation machines according to claim 1, characterized in that, The hollow tube has an adjustable length.

3. The online sampler for flotation machines according to claim 1, characterized in that, When the hollow tube is installed on the flotation cell by the fixing device, one end of the hollow tube is below the surface of the slurry in the flotation cell, and the other end of the hollow tube protrudes relative to the flotation cell.

4. The online sampler for flotation machines according to claim 3, characterized in that, The length of the hollow tube protruding from the flotation cell is 80-120 mm.

5. The online sampler for flotation machines according to claim 1, characterized in that, The hollow tube has a double-tube structure, comprising an inner hollow tube and an outer hollow tube. The inner hollow tube is fitted inside the outer hollow tube and can slide relative to the outer hollow tube to change the overall length of the hollow tube. The fixing device is fixedly installed on the outer tube of the hollow tube.

6. The online sampler for flotation machines according to claim 1, characterized in that, The total length of the hose is 1.5 to 2 times the maximum length of the hollow tube.

7. The online sampler for flotation machines according to claim 1, characterized in that, The fixing device is a hook structure, and the fixing device and the hollow tube form a U-shaped groove for clamping the hollow tube onto the wall of the flotation cell.

8. The online sampler for flotation machines according to claim 1, characterized in that, The hollow tube is a stainless steel tube; The fixing device is made of iron or steel; The fixing device is welded to the hollow tube.

9. The online sampler for flotation machines according to claim 1, characterized in that, The hose is a high-temperature resistant and acid / alkali resistant rubber or silicone hose.

10. The online sampler for a flotation machine according to any one of claims 1 to 9, characterized in that, When the hollow tube is installed on the flotation cell, a heat-insulating sleeve is provided on the section of the hollow tube that protrudes relative to the flotation cell.

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