Sample deflector

Abstract

The utility model provides a kind of sampling deflector, belong to magnetic separation technology field, including deflector body and two side plates;Two side plates are located at the two sides of deflector body, and side plate and deflector body are enclosed to overflow detection channel, and overflow detection channel is introduced into overflow slurry of elutriation magnetic separator by ore inlet.The sampling deflector provided by the utility model encloses overflow detection channel, so that the overflow slurry is limited in the fixed channel during transmission, and the slurry to be detected is pretreated, so that the slurry is spread on the deflector, forming stable streamline and laminar flow state, providing a stable shooting object for the image acquisition module, significantly improving the accuracy of overflow slurry image recognition.

Description

Technical Field

[0001] This utility model belongs to the field of magnetic mineral separation technology, and more specifically, it relates to a sampling guide plate. Background Technology

[0002] Traditional tailings washing machines cannot detect tailings grade online, requiring manual judgment of the slurry overflow status, resulting in open-loop control of the tailings. Patent application CN116871045A discloses a method for adjusting a washing magnetic separator, which involves capturing overflow slurry identification data using an image acquisition module (e.g., a camera) installed on the washing magnetic separator or in a monitoring environment. However, during detection, the low slurry concentration and high flow rate cause fluctuations in the overflow surface, making it difficult for the image acquisition module to accurately capture the overflow slurry status, leading to poor detection accuracy. Utility Model Content

[0003] The purpose of this invention is to provide a sampling guide plate, which aims to solve the problem of insufficient image clarity in the image acquisition module, thereby improving the detection accuracy.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a sampling guide plate, comprising: Deflector body; Two side panels are provided on both sides of the guide plate body. The side panels and the guide plate body enclose an overflow detection channel. The overflow detection channel introduces the overflow slurry of the washing magnetic separator through the ore inlet. The overflow detection channel is connected to the overflow outlet of the washing magnetic separator through the ore outlet.

[0005] In another embodiment of this application, the angle between the guide plate body and the horizontal plane can be adjusted.

[0006] In another embodiment of this application, the width of the overflow detection channel gradually increases from the ore inlet to the ore outlet.

[0007] In another embodiment of this application, the ore inlet of the guide plate body is fitted or embedded on the outer wall of the inner cylinder.

[0008] As another embodiment of this application, it also includes: A locking structure is provided at the ore inlet of the guide plate body, and the locking structure is connected to the inner cylinder of the washing magnetic separator.

[0009] As another embodiment of this application, the locking structure includes: A fastener is provided on the lower end face of the guide plate body. The fastener is used to fit against the outer wall of the inner cylinder and connect with the inner cylinder.

[0010] In another embodiment of this application, the locking structure has a downward-opening mounting groove that engages with the upper edge of the inner cylinder.

[0011] In another embodiment of this application, the locking structure further includes a locking member, which includes: A locking part is provided at a distance from the fixing member; The connecting part connects the upper end of the locking part and the upper end of the fixing member, and cooperates with the locking part and the fixing member to form the mounting groove.

[0012] In another embodiment of this application, the locking structure further includes: A clamping member, which passes through the locking part and abuts against the inner wall of the inner cylinder.

[0013] In another embodiment of this application, there are two locking members, which are respectively located on both sides of the ore inlet of the guide plate body.

[0014] The beneficial effects of the sampling guide plate provided by this utility model are as follows: Compared with the prior art, the sampling guide plate of this utility model, by enclosing an overflow detection channel, confines the overflow slurry within a fixed channel during transmission, pre-treating the slurry to be tested. This allows the slurry to spread out and flat on the guide plate, forming stable streamlines and laminar flow, providing a stable subject for the image acquisition module and significantly improving the accuracy of overflow slurry image recognition. It also lays the foundation for subsequent accurate extraction of characteristic data such as color, impurity content, and particle distribution in the water. Furthermore, the design of the guide plate's inlet being flush with the upper edge of the inner cylinder ensures that the overflow slurry can flow naturally and smoothly into the guide plate. The slurry streamlines within the guide plate are stable and parallel or smoothly changing, resulting in very stable flow that is not easily disrupted by minor disturbances. The symmetrically arranged side panels further constrain the slurry, preventing it from shifting to either side and ensuring that the slurry is always transmitted along the preset path, thus improving the reliability of the entire guiding process. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the sampling guide plate provided in an embodiment of this utility model; Figure 2 A bottom view of the sampling guide plate provided in an embodiment of this utility model; Figure 3 A front view of the sampling guide plate provided in an embodiment of this utility model; Figure 4 Rear view of the sampling guide plate provided in an embodiment of this utility model; Figure 5 A schematic diagram showing the installation position of the sampling guide plate provided in an embodiment of this utility model; Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7 This is a schematic diagram of the installation position of the sampling guide plate in an inclined state, as provided in an embodiment of this utility model.

[0017] In the figure: 10, guide plate body; 11, side panel; 12, fastener; 13, connecting part; 14, locking part; 15, ore inlet; 16, ore outlet; 20, inner cylinder; 30, overflow trough; 40, nozzle. Detailed Implementation

[0018] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] Please see Figures 1 to 6 The sampling guide plate provided by this utility model will now be described. The sampling guide plate includes a guide plate body 10 and two side panels 11; the two side panels 11 are disposed on both sides of the guide plate body 10, and the side panels 11 and the guide plate body 10 enclose an overflow detection channel, which is connected to the overflow outlet of the washing magnetic separator through the ore outlet.

[0020] A conventional washing magnetic separator includes an inner cylinder 20 and an outer cylinder. The outer cylinder is located outside the inner cylinder 20, and an overflow trough 30 is formed on the outer side of the inner cylinder 20. When the washing magnetic separator is working, raw materials are fed into the inner cylinder 20 and water is continuously added. The impurities in the raw materials are washed out through the slurry. The washed water overflows from the upper edge of the inner cylinder 20 into the overflow trough 30 and flows out through the drain outlet on the overflow trough 30.

[0021] During the rinsing process, the rinsing results can be judged and evaluated by observing the color and impurity content of the overflowing water. Alternatively, an image acquisition module, such as a camera, can be used to photograph the overflowing water, and feature data can be extracted based on the information in the photos.

[0022] To address the issue of unclear photographs of overflow slurry, a sampling guide plate has been added to the washing magnetic separator. This allows some of the overflow slurry from the inner cylinder 20 to flow out through the sampling guide plate. The overflow slurry can either overflow directly from the inner cylinder into the overflow detection channel or be led out through pipes or other structures to the inlet of the overflow detection channel. After passing through the overflow detection channel, the slurry is discharged from the outlet of the overflow detection channel into the overflow tank, where it mixes with other slurries before being discharged from the overflow outlet.

[0023] The sampling guide plate provided by this utility model has an upper end face of the guide plate body 10 as a guide surface. When the overflow slurry containing impurities in the inner cylinder 20 overflows from the inner cylinder 20, some of the overflow slurry will enter the guide surface from the ore inlet formed between the two side plates 11 and gradually flow along the guide surface to the ore outlet until it flows out from the ore outlet of the guide plate body 10 into the overflow trough 30.

[0024] Optionally, the guide plate body 10 can be installed on the inner cylinder 20. When installing the guide plate body 10, a groove can be opened on the upper edge of the inner cylinder 20 so that the guide plate body 10 is embedded in the groove of the inner cylinder 20, and the guide plate body 10 is flush with the upper edge of the inner cylinder 20; alternatively, the guide plate body 10 can be attached to the outer wall of the inner cylinder 20, and through close contact, the upper edge of the ore inlet of the guide plate body 10 is flush with the upper edge of the inner cylinder 20.

[0025] The side panels 11 located on both sides of the guide plate body 10 can block and guide the overflow slurry entering the overflow detection channel, preventing the overflow slurry in the overflow detection channel from spreading and flowing out to both sides during the transmission process, ensuring that the slurry can always be output along the length direction of the guide plate body 10, and finally flow into the overflow tank 30 to mix with other overflow slurries.

[0026] The guide plate body 10 and the two side panels 11 together enclose the overflow detection channel, which can ensure that all overflow slurry entering the overflow detection channel from the mine inlet passes through the overflow detection channel, forming a stable transmission process and ensuring that the slurry flowing through the overflow detection channel is representative.

[0027] The overflow detection channel forms a stable overflow slurry transport channel, with the slurry forming a laminar flow state on the upper surface of the guide plate body 10. During the detection process, the image acquisition module can take pictures of the steadily transporting overflow slurry within the overflow detection channel, using the overflow detection surface as a background to obtain clear image information for subsequent feature data extraction.

[0028] Compared with the prior art, the sampling guide plate provided by this utility model, by enclosing the overflow detection channel, confines the overflow slurry within a fixed channel during the transmission process, making the slurry more concentrated and stable, effectively avoiding slurry diffusion and splashing, and allowing the slurry to spread out and spread evenly on the guide plate, providing a stable subject for the image acquisition module, significantly improving the clarity of overflow slurry photography, and laying the foundation for subsequent accurate extraction of characteristic data such as color, particle distribution, and impurity content in the water.

[0029] The inlet of the guide plate body 10 can be flush with the upper edge of the inner cylinder 20 so that the overflow slurry can flow into the sampling guide plate naturally and smoothly. The side plates 11 set on both sides further constrain the overflow slurry, ensuring that the overflow slurry is always transported along the preset path, thus improving the reliability of the entire guide process.

[0030] Optionally, the side panel 11 is perpendicular to the upper end face of the deflector body 10 and welded to the deflector body 10. Both the side panel 11 and the deflector body 10 can be made of 3.5cm thick stainless steel.

[0031] Optionally, the guide plate body 10 can be fixed to the outer wall of the inner cylinder 20 of the washing magnetic separator by means of bolts, welding or other methods.

[0032] In some possible embodiments, please refer to Figure 6 The angle between the deflector body 10 and the horizontal plane can be adjusted. This includes adjusting the angle between the deflector body 10 and the horizontal plane. The deflector body 10 can be in a horizontal or tilted position.

[0033] When the guide plate body 10 is set horizontally, the overflow slurry entering the overflow detection channel from the ore inlet flows smoothly. The slurry's power mainly comes from the overflow thrust continuously generated by the slurry in the inner cylinder 20. Because the guide plate is horizontal, the slurry speed remains uniform, and there will be no acceleration or deceleration due to slope changes. The slurry surface remains stable. The image acquisition module can take clear pictures of the smoothly flowing overflow slurry in the channel during the slurry transmission stage, providing high-quality images for subsequent feature data extraction.

[0034] When the guide plate is tilted downwards, the inlet of the guide plate body 10 is its highest point. At this time, the outlet of the guide plate body 10 is lower than the inlet, forming a downward slope. However, the design that the inlet is flush with the upper edge of the inner cylinder 20 still ensures that the slurry can enter the overflow detection channel naturally and without obstruction. In addition to relying on the overflow thrust of the inner cylinder 20, the overflow slurry will also be accelerated and transported towards the outlet along the tilted guide plate body 10 under the action of gravity. The two side plates 11 play a key restraining role at this stage, effectively preventing the slurry from splashing or spreading to both sides due to acceleration, ensuring that the slurry is always transported along the central axis of the channel. At the same time, the tilt angle can be flexibly adjusted according to the actual working conditions (such as the overflow slurry flow rate, the distance between the inner cylinder 20 and the overflow trough 30), and is usually controlled within a small angle range to avoid the slurry turbulence caused by excessive flow velocity. The inclined baffle body 10 reduces the residence time of slurry in the overflow detection channel and reduces the probability of impurities in the water depositing on the surface of the baffle body 10. The acquisition module can capture fast but stable slurry images during the slurry transfer stage, which can also meet the requirements for clear photography.

[0035] Furthermore, to prevent scaling and mineral particle accumulation on the baffle body 10, the baffle's tilt angle is adjustable. Please refer to [link / reference]. Figure 7 The guide plate body 10 is rotatably mounted on the inner cylinder 20.

[0036] A controllable intermittent flushing device is installed at the ore inlet of the guide plate body 10 at an angle to periodically flush the guide plate. The flushing device includes a water pipe, and a nozzle 40 is installed at the end of the water pipe. The flushing device sprays water towards the ore inlet of the guide plate body, and the water flow is inclined towards the overflow detection channel to wash away the mineral particles in the overflow detection channel.

[0037] In some possible embodiments, please refer to Figures 1 to 4 The width of the overflow detection channel gradually increases from the ore inlet to the ore outlet.

[0038] After entering the overflow detection channel, the slurry is transported towards the outlet. As the channel width gradually increases, the slurry naturally and gently diffuses to both sides under the guidance of the side panels 11. Because the width change is gradual, the slurry velocity gradually decreases as the cross-sectional area increases, avoiding sudden velocity changes. In addition, the gradually widening overflow detection channel reduces the impact force of the slurry on the side panels 11, reduces pressure fluctuations, and keeps the slurry surface flat at all times, without splashing or tumbling.

[0039] The slurry, transported through the gradually widened channel, flows out smoothly from the widest outlet and falls into the overflow trough without causing a concentrated impact.

[0040] Optionally, the guide plate body 10 is a fan-shaped plate, and under the limiting effect of the side plate 11, the overflow detection channel forms a fan-shaped channel with a gradually changing width. The ore outlet of the guide plate body 10 forms a corresponding arc-shaped edge.

[0041] In some possible embodiments, the sampling guide plate also includes a locking structure located at the ore inlet of the guide plate body 10 and connected to the inner cylinder 20 of the washing magnetic separator.

[0042] The locking structure is used to install the guide plate body 10 onto the inner cylinder 20 of the washing magnetic separator.

[0043] The locking structure can be a welded structure, that is, a welding connecting plate that can be welded is provided at the lower end of the guide plate body 10, and the welding connecting plate is used to weld and fix it to the inner cylinder 20. The welding connecting plate and the guide plate body 10 are fixed by bolts, welding or integral molding.

[0044] The locking structure can be a bolt assembly. An installation part for fitting onto the inner cylinder 20 is provided at the ore inlet of the guide plate body 10. The bolt passes through the installation part and the inner cylinder 20 and locks the installation part onto the inner cylinder 20.

[0045] Optionally, the mounting part is a plate vertically welded to the lower end of the guide plate body 10, and the mounting part has a longitudinally extending elongated hole. During installation, bolts pass through bolt holes in the inner cylinder 20 and through the elongated hole in the mounting part, and are finally secured with nuts. The elongated hole allows for longitudinal fine-tuning of the guide plate body 10, ensuring that the height difference between the ore inlet of the guide plate and the upper edge of the inner cylinder 20 is ≤0.1mm.

[0046] In some possible embodiments, please refer to Figures 2 to 6 The locking structure includes a fixing member 12, which is located on the lower end face of the guide plate body 10. The fixing member 12 is used to fit against the outer side wall of the inner cylinder 20 and connect to the inner cylinder 20. That is, the above-mentioned mounting part can be the fixing member 12. The fixing member 12 is an arc-shaped plate structure, and the side wall of the fixing member 12 is flush with the edge of the ore inlet of the guide plate body 10.

[0047] Optionally, there may be one or two fasteners 12.

[0048] When there is one fixing member 12, the length of the fixing member 12 is greater than the width of the inlet of the guide plate body 10. One or both ends of the fixing member 12 extend to the outside of the guide plate body 10 to fix the part of the fixing member 12 extending out of the guide plate body 10 to the inner cylinder 20. For example, bolt holes are opened at the ends of the fixing member 12.

[0049] When there are two fasteners 12, the two fasteners 12 are respectively connected to the guide vane body 10, and the two fasteners 12 extend from both sides of the guide vane body 10 in the width direction. Bolt holes are provided on both fasteners 12.

[0050] In some possible embodiments, please refer to Figure 6 The locking structure has a downward-facing mounting groove that engages with the upper edge of the inner cylinder 20.

[0051] The locking structure can use a U-shaped connector with the opening facing downwards, forming a mounting groove. The connector can be made of materials such as stainless steel or aluminum alloy.

[0052] The width of the mounting groove is adapted to the thickness of the inner cylinder 20 plate, and the groove depth ensures that the edge of the inner cylinder 20 can be embedded in the groove. For example, the groove depth can be set to 5cm-10cm.

[0053] Symmetrical wedge-shaped limiting blocks are provided on both sides of the opening of the mounting groove. After the mounting groove and the inner cylinder 20 are engaged, the wedge-shaped limiting blocks are inserted into the mounting groove to prevent the mounting groove from detaching upwards and to enhance the stability of the engagement. The wedge-shaped limiting blocks can be made of nylon.

[0054] The end face of the closed end of the installation groove is flush with the ore inlet of the guide plate body 10. When the bottom of the installation groove is in contact with the upper end of the inner cylinder 20, the ore inlet of the guide plate body 10 is flush with the upper end of the inner cylinder 20.

[0055] The connector can be integrally formed with the fastener 12 or welded onto the fastener 12.

[0056] In some possible embodiments, please refer to Figure 6 The locking structure also includes a locking component, which includes a locking part 14 and a connecting part 13. The locking part 14 is spaced apart from the fixing part 12. The connecting part 13 connects the upper end of the locking part 14 and the upper end of the fixing part 12, and cooperates with the locking part 14 and the fixing part 12 to form an installation groove.

[0057] Both the locking part 14 and the connecting part 13 are plate structures. The locking part 14 and the connecting part 13 are vertically connected to form an L-shaped structure. The end of the connecting part 13 away from the locking part 14 is fixedly connected to the fixing member 12. The locking part 14, the connecting part 13 and the fixing member 12 cooperate to form a U-shaped mounting groove.

[0058] Alternatively, the locking part 14 and the connecting part 13 may be integrally formed with the fixing member 12, and may be formed by bending the fixing member 12.

[0059] The locking structure also includes a clamping member, which passes through the locking part 14 and clamps against the inner wall of the inner cylinder 20. The clamping member can be a bolt.

[0060] When bolts are used as the clamping component, a transverse mounting hole is provided on the locking part 14, and a nut coaxial with the mounting hole can be welded onto the locking part 14. During installation, the bolt only needs to be installed on the nut and pressed against the wall of the inner cylinder 20 through the mounting hole. Under the action of the bolt, the front end of the bolt clamps the inner cylinder 20 in the mounting groove with the fixing part 12, ensuring the stability of the guide plate body 10.

[0061] Optionally, there are two locking members, located on both sides of the ore inlet of the guide plate body 10. When there is one fixing member 12, both ends of the fixing member 12 extend from both sides of the guide plate body 10 in the width direction, and locking members are provided at both ends of the fixing member 12. When there are two fixing members 12, the two fixing members 12 are connected to the two locking members one-to-one.

[0062] In some possible embodiments, the guide plate body 10 includes an inclined section and a horizontal section, wherein the inclined section is located in front of the horizontal section, the slurry flows through the inclined section and then into the horizontal section, and then into the overflow trough 30. The included angle between the inclined section and the horizontal section is 150°-170°.

[0063] The inlet of the inclined section is flush with the upper edge of the inner cylinder 20, and the other end of the inclined section smoothly transitions to the horizontal section. The upper surface of the horizontal section forms an overflow detection surface. During the detection process, the image acquisition module can take pictures of the overflow slurry on the overflow detection surface, using the overflow detection surface as a background to obtain clear image information for subsequent feature data extraction.

[0064] In some possible embodiments, the sampling guide plate also includes a baffle plate located on the side near the ore inlet. The two ends of the baffle plate are respectively connected to two side panels 11, and the lower end of the baffle plate is spaced apart from the upper end face of the guide plate body 10 to form an ore inlet. Overflow slurry enters the overflow detection channel through the ore inlet. The baffle plate limits the flow rate of the overflow slurry entering the overflow detection channel to improve detection efficiency.

[0065] The aforementioned washing magnetic separator is one type of mineral processing equipment. This application is also applicable to other mineral processing equipment with overflow systems, including but not limited to dewatering tanks, desliming tanks, magnetic separation columns, flotation machines, flotation columns, and magnetic flotation columns. In practical applications, the overflow product can be the target product or tailings.

[0066] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sampling guide plate, used to detect or observe the overflow status of a washing magnetic separator, characterized in that, include: Deflector body (10); Two side panels (11) are provided on both sides of the guide plate body (10). The side panels (11) and the guide plate body (10) enclose an overflow detection channel. The overflow detection channel introduces the overflow slurry of the washing magnetic separator through the ore inlet. The overflow detection channel is connected to the overflow outlet of the washing magnetic separator through the ore outlet.

2. The sampling guide plate as described in claim 1, characterized in that, The angle between the guide plate body (10) and the horizontal plane can be adjusted.

3. The sampling guide plate as described in claim 1, characterized in that, The width of the overflow detection channel gradually increases from the ore inlet to the ore outlet.

4. The sampling guide plate as described in claim 1, characterized in that, The ore inlet of the guide plate body (10) is attached to or embedded on the outer wall of the inner cylinder (20).

5. The sampling guide plate as described in claim 1, characterized in that, Also includes: A locking structure is provided at the ore inlet of the guide plate body (10), and the locking structure is connected to the inner cylinder (20) of the washing magnetic separator.

6. The sampling guide plate as described in claim 5, characterized in that, The locking structure includes: A fastener (12) is provided on the lower end face of the guide plate body (10). The fastener (12) is used to fit against the outer side wall of the inner cylinder (20) and connect to the inner cylinder (20).

7. The sampling guide plate as described in claim 6, characterized in that, The locking structure has a downward-facing mounting groove that engages with the upper edge of the inner cylinder (20).

8. The sampling guide plate as described in claim 7, characterized in that, The locking structure further includes a locking element, which comprises: A locking part (14) is provided at a distance from the fixing member (12); The connecting part (13) connects the upper end of the locking part (14) and the upper end of the fixing member (12), and cooperates with the locking part (14) and the fixing member (12) to form the mounting groove.

9. The sampling guide plate as described in claim 8, characterized in that, The locking structure also includes: A clamping member, which passes through the locking part (14) and abuts against the inner wall of the inner cylinder (20).

10. The sampling guide plate as described in claim 8, characterized in that, The locking element is two in number, and the two locking elements are respectively located on both sides of the ore inlet of the guide plate body (10).

Images