Automatic chute mechanism for preparation equipment

Abstract

The utility model relates to the technical field of preparation equipment, in particular to an automatic chute mechanism for preparation equipment. Comprising a chute body which is obliquely arranged and a gold adhering blanket arranged on the chute body, a gold adhering brush is arranged on the gold adhering blanket, a power mechanism for driving the gold adhering blanket to turn over is arranged in the chute body, a water pipe assembly is arranged in the chute body and comprises branch pipes which are transversely arranged, and water spraying openings with upward openings are formed in the branch pipes. A rotating shaft is rotationally arranged on one side of the branch pipe, an arc-shaped plate is arranged on the rotating shaft, when the gold adhering blanket is located on the bottom face of the chute body, the arc-shaped plate covers the water spraying opening, and when the power mechanism drives the gold adhering blanket to turn over to be located above the bottom face of the chute body in a spaced mode, the rotating shaft rotates and drives the arc-shaped plate to turn over so that the arc-shaped plate can be separated from the water spraying opening. According to the utility model, the gold sticking blanket is switched between an adsorption mode and a cleaning mode through periodic overturning controlled by the flexible transmission chain, so that the automation degree of the ore cleaning process of the main machine of the movable type gulch-gold ore dressing device is greatly improved, and the labor capacity of manual ore cleaning is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mineral processing equipment technology, specifically to an automatic chute mechanism for mineral processing equipment. Background Technology

[0002] In the beneficiation process of placer gold mines and lode gold mines, sluices are a commonly used gravity separation device. Through the flow of slurry in an inclined sluice, high-density minerals such as gold particles settle and adhere to the gold-adhesive blanket at the bottom of the sluice, such as a velvet blanket, felt, or rubber blanket with brush bristles, while light silt is discharged with the water flow, thereby achieving the initial enrichment of minerals.

[0003] After a period of operation, the bristles or surface of the gold-adhering blanket in traditional sluice box equipment become clogged with gold particles and other heavy minerals. This prevents the gold particles from being effectively adsorbed when subsequent slurry flows through, resulting in a decrease in recovery rate. At this point, production must be stopped, and the gold-adhering blanket must be manually removed and cleaned—a process known as "cleaning"—to restore its gold-catching capacity. Manual cleaning requires frequent disassembly and reassembly of the gold-adhering blanket, which is cumbersome, especially in large-scale continuous beneficiation systems where the high frequency of cleaning severely impacts production efficiency. During manual cleaning, some fine gold particles may be lost due to improper handling, and it is difficult to thoroughly clean the gold accumulated at the base of the bristles, leading to fluctuations in recovery rate. Furthermore, manual cleaning is labor-intensive, and each cleaning cycle requires a significant interruption, affecting the continuity of beneficiation and reducing equipment utilization. Utility Model Content

[0004] This utility model provides an automatic chute mechanism for mineral processing equipment to solve the technical problems of low automation, high labor intensity and low chute efficiency in existing mineral processing equipment.

[0005] To solve the above problems, the present invention provides an automatic chute mechanism for mineral processing equipment, which adopts the following technical solution:

[0006] The device includes an inclined chute body and a gold-adhesive blanket mounted on the chute body. The gold-adhesive blanket is equipped with a gold-adhesive brush. The chute body contains a power mechanism that drives the gold-adhesive blanket to rotate. The chute body also contains a water pipe assembly, which includes horizontally arranged branch pipes. Each branch pipe has an upward-facing water nozzle. A rotating shaft is mounted on one side of each branch pipe, and an arc-shaped plate is mounted on the rotating shaft. When the gold-adhesive blanket is on the bottom surface of the chute body, the arc-shaped plate covers the water nozzle. When the power mechanism drives the gold-adhesive blanket to rotate and move it above the bottom surface of the chute body, the rotating shaft rotates and adjusts the arc-shaped plate to rotate, causing the arc-shaped plate to disengage from the water nozzle.

[0007] The chute body is also equipped with a guide component. When the power mechanism drives the gold-adhesive blanket to flip and be positioned above the bottom surface of the chute body, the gold-adhesive blanket opens up the downward-facing gold-adhesive brushes through the action of the guide component.

[0008] Furthermore, the power mechanism includes a flexible transmission chain, and one side and the middle part of the gold-bonded blanket are connected to the flexible transmission chain.

[0009] Furthermore, the free end of the arc-shaped plate is provided with a straight extension plate. When the arc-shaped plate is placed on the branch pipe to cover the water nozzle, the straight extension plate points obliquely downward toward the gold-adhesive blanket and there is a gap between the end of the straight extension plate and the gold-adhesive blanket.

[0010] Furthermore, the end of the arc-shaped plate is provided with an arc-shaped opening sleeve, which is fixedly sleeved on the rotating shaft by an interference fit.

[0011] Furthermore, the end of the arc-shaped plate is provided with a groove, and the bottom edge of the groove is connected to the outside.

[0012] Furthermore, the rotating shaft is also provided with a lower arc-shaped limiting plate corresponding to the slot opening, and the end of the lower arc-shaped limiting plate is provided with an arc-shaped sleeve, which is fixedly sleeved on the rotating shaft by interference fit.

[0013] Furthermore, the guide assembly includes rotatably supported and spaced-apart upper pressure rollers, with lower arching guide wheels rotatably positioned between adjacent upper pressure rollers.

[0014] The flexible transmission chain in the middle and the corresponding part of the guide assembly are redirected in a continuous S-shape through the cooperation of the upper pressure roller and the lower arching guide wheel.

[0015] Furthermore, a feed cylinder is provided at the upper end of the chute body, a conveying auger is provided inside the feed cylinder, and a discharge port is provided on the side of the feed cylinder opposite to the lower end of the chute body.

[0016] The upper end of the gold-bonded blanket is wound around the outside of the feed cylinder via a flexible transmission chain.

[0017] Furthermore, a sedimentation container is provided below the end of the chute body, and a flip plate corresponding to the sedimentation container is provided on the bottom plate of the chute body.

[0018] Furthermore, the sedimentation container is provided with a flow guide baffle, and the outer side of the sedimentation container is provided with a wastewater overflow outlet.

[0019] The beneficial effects of the automatic sluice gate mechanism for mineral processing equipment provided by this utility model are:

[0020] In operation, the gold-adhesive blanket is arranged horizontally with the brush facing upwards. Continuous gold extraction is achieved through precise control of a flexible transmission chain. The flexible transmission chain rotates the gold-adhesive blanket 180°, and the S-shaped guide assembly forces the brushes open, significantly improving cleaning efficiency. The periodic rotation controlled by the flexible transmission chain allows the gold-adhesive blanket to switch between adsorption and cleaning modes, greatly enhancing the automation of the main cleaning process in the mobile placer gold beneficiation unit and reducing the labor required for manual cleaning.

[0021] In this invention, the arc-shaped plate covers the water nozzle in adsorption mode, completely preventing sediment intrusion and solving the industry problem of easy clogging of traditional nozzles. On the other hand, the arc-shaped plate can form an upward-convex physical barrier, guiding the water flow to form local turbulence and upward vortexes. The vortexes cause the water flow to repeatedly scour the surface of the gold-adhesive blanket, increasing the contact probability between fine gold particles and the blanket. Specifically, through the combined action of the arc-shaped plate and the straight extension plate, a triple effect of anti-clogging, water flow optimization, and improved gold particle recovery can be achieved. Attached Figure Description

[0022] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0023] Figure 1 This is a schematic diagram of the automatic chute mechanism for the mineral processing equipment of this utility model;

[0024] Figure 2 This is a cross-sectional schematic diagram of the automatic chute mechanism for mineral processing equipment of this utility model in the sorting state;

[0025] Figure 3 for Figure 2 A magnified view of a portion of region A in the middle;

[0026] Figure 4 for Figure 2 A magnified view of a portion of region B in the middle;

[0027] Figure 5 This is a cross-sectional schematic diagram of the automatic chute mechanism for mineral processing equipment of this utility model in the clear chute state;

[0028] Figure 6 for Figure 5 A magnified view of a portion of region C in the middle;

[0029] Figure 7 This is a side view of an embodiment of the present invention in the sorting state;

[0030] Figure 8This is a side view of an embodiment of the present invention in a clear state;

[0031] Figure 9 This is a schematic diagram of an overall mineral processing equipment including an automatic sluice gate mechanism for mineral processing equipment, as described in this utility model embodiment.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Sluice body; 11. Tilting plate; 2. Gold-adhesive blanket; 21. Gold-adhesive brush; 3. Power mechanism; 31. Flexible transmission chain; 4. Water pipe assembly; 41. Branch pipe; 411. Spray nozzle; 5. Rotating shaft; 51. Arc plate; 511. Arc opening sleeve; 512. Sluice opening; 52. Straight outer extension plate; 53. Lower arc-shaped limiting plate; 531. Arc sleeve; 6. Guide assembly; 61. Upper pressure roller; 62. Lower arching guide wheel; 7. Feed cylinder; 71. Conveying auger; 72. Discharge port; 8. Sedimentation container; 81. Flow guide baffle; 82. Wastewater overflow sluice. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0035] The number of any elements in the accompanying drawings is for illustrative purposes only and not as a limitation, and any naming is for distinction only and has no limiting meaning.

[0036] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0037] An embodiment of an automatic sluice gate mechanism for mineral processing equipment provided by this utility model:

[0038] like Figures 1 to 9 As shown,

[0039] The system includes an inclined chute body 1 and a gold-adhesive blanket 2 mounted on the chute body 1. The gold-adhesive blanket 2 is equipped with a gold-adhesive brush 21. The upper end of the chute body 1 is provided with a feed cylinder 7, which contains a conveying auger 71. The feed cylinder 7 has a discharge port 72 on the side opposite to the lower end of the chute body 1.

[0040] Specifically, the mixture of placer gold minerals, silt, and water sorted in the previous step is fed into the upper right position of the sluice body 1 via the upper feed cylinder 7 and the conveying auger 71 located inside the feed cylinder 7. Under the action of water flow and gravity, the silt and placer gold mineral particles flow from the upper end to the lower end. The target minerals settle downwards under the action of gravity and fall into the gold-adhesive brushes 21 on the gold-adhesive blanket 2, while the sand particles are washed down with the water flow and enter the dewatering screen in the next process.

[0041] In this embodiment, the chute body 1 is equipped with a power mechanism 3 that drives the gold-adhesive blanket 2 to rotate. Specifically, the power mechanism 3 includes a flexible transmission chain 31, with one side and the middle part of the gold-adhesive blanket 2 connected to the flexible transmission chain 31. A rotating shaft is provided at the lower end of the chute body 1, and a transmission gear that cooperates with the flexible transmission chain 31 is provided on the shaft. The rotation of the rotating gear drives the flexible transmission chain 31. During rotation, the flexible transmission chain 31 can drive the gold-adhesive blanket 2 to rotate, realizing the switching between adsorption and cleaning modes of the gold-adhesive blanket 2.

[0042] The upper end of the gold-adhesive blanket 2 is wound around the outside of the feed cylinder 7 via a flexible transmission chain 31. In order to make the gold-adhesive blanket 2 rotate more smoothly, an outer cylinder can be rotated outside the feed cylinder 7 via bearings.

[0043] In this embodiment, a water pipe assembly 4 is provided inside the chute body 1. The water pipe assembly 4 includes horizontally arranged branch pipes 41, and each branch pipe 41 has an upward-facing water nozzle 411. The water pipe assembly 4 also includes a main pipeline located inside the chute body 1 and distributed from top to bottom, with the horizontally arranged branch pipes 41 spaced apart on both sides of the main pipeline. The upward-facing water nozzles 411 can flush away gold-containing substances stuck in the gold-adhesive brush 21 with high-pressure water when the gold-adhesive blanket 2 is in cleaning mode.

[0044] In this embodiment, a rotating shaft 5 is rotatably provided on one side of the branch pipe 41, and an arc-shaped plate 51 is provided on the rotating shaft 5. Specifically, an arc-shaped opening sleeve 511 is provided at the end of the arc-shaped plate 51, and the arc-shaped opening sleeve 511 is fixedly sleeved on the rotating shaft 5 by an interference fit.

[0045] When the gold-coated blanket 2 is on the bottom surface of the chute body 1, the arc plate 51 covers the water spray nozzle 411. When the power mechanism 3 drives the gold-coated blanket 2 to flip and is above the bottom surface of the chute body 1, the rotating shaft 5 rotates and adjusts the arc plate 51 to flip so that the arc plate 51 is removed from the water spray nozzle 411.

[0046] It should be noted that when the gold-adhering blanket 2 is on the bottom surface of the sluice body 1, the arc-shaped plate 51 can be attached to the branch pipe 41, covering the spray nozzle 411. This prevents silt and other debris from entering the spray nozzle 411 and causing blockages. Furthermore, the arc-shaped plate 51 forms an upward-protruding physical barrier, guiding the water flow to create localized turbulence and upward vortices. These vortices cause repeated scouring of the surface of the gold-adhering blanket 2, increasing the contact probability between fine gold particles and the blanket. The tumbling action promotes the stratification of light and heavy minerals, making it easier for gold particles to settle onto the surface of the blanket 2, avoiding edge deposition caused by traditional straight-flow channels, and improving the overall recovery rate.

[0047] The free end of the arc plate 51 is provided with a straight extension plate 52. When the arc plate 51 is placed on the branch pipe 41 to cover the spray nozzle 411, the straight extension plate 52 points obliquely downward to the gold-sticking blanket 2 and there is a gap between the end of the straight extension plate 52 and the gold-sticking blanket 2.

[0048] The tilt angle of the straight extension plate 52 forces the water flow through the vortex formed by the arc plate 51 to be directed towards the surface of the gold-adhesive blanket 2, increasing the uniformity of water coverage on the gold-adhesive blanket and preventing a decrease in recovery rate due to water dispersion. The end gap of the straight extension plate 52 allows some water flow to carry light silt through, preventing the formation of a sediment layer on the surface of the gold-adhesive blanket 2, which would affect gold adsorption.

[0049] Specifically, the combined effect of the arc-shaped plate 51 and the straight extension plate 52 can achieve the triple effects of anti-clogging, water flow optimization, and improved gold particle recovery.

[0050] A motor for driving the rotating shaft 5 is provided on the side plate of the chute body 1.

[0051] The arc plate 51 has a slot 512 at its end, and the bottom edge of the slot 512 is connected to the outside.

[0052] The flipping of the arc plate 51 allows the water nozzle 411 to flush the surface, while the groove 512 helps to remove sand and prevents the accumulation of gold dust on the concave surface of the arc plate 51.

[0053] The rotating shaft 5 is also provided with a lower arc-shaped limiting plate 53 corresponding to the slot 512. The end of the lower arc-shaped limiting plate 53 is provided with an arc-shaped sleeve 531, which is fixedly sleeved on the rotating shaft 5 by interference fit.

[0054] The lower arc-shaped limiting plate 53 can improve the stability of the rotating shaft 5 and help extend the service life of the equipment.

[0055] In this embodiment, the chute body 1 is also provided with a guide component 6. When the power mechanism 3 drives the gold-sticking blanket 2 to flip and be positioned above the bottom surface of the chute body 1, the gold-sticking blanket 2 opens up the downward-facing gold-sticking brush 21 through the action of the guide component 6.

[0056] Thanks to the guide component 6, the gold-adhesive brush 21 opens and closes mechanically without manual intervention, improving efficiency and reducing labor intensity. The gold-adhesive brush 21 only opens during the flipping and cleaning process, preventing gold particles from falling off due to water flow impact during gold capture.

[0057] The guide assembly 6 includes rotating and spaced upper pressure rollers 61, with lower arching guide wheels 62 rotatably positioned between adjacent upper pressure rollers 61. Both the upper pressure rollers 61 and the lower arching guide wheels 62 are rotatably supported by the side plates of the chute body 1.

[0058] The flexible transmission chain 31 in the middle and the part corresponding to the guide assembly 6 are redirected in a continuous S-shape through the cooperation of the upper pressure roller 61 and the lower arching guide wheel 62.

[0059] Through the alternating action of multiple upper pressure rollers 61 and lower arching guide rollers 62, the gold-adhesive blanket 2 is repeatedly bent, and the gold-adhesive brush 21 is fully opened, making it easy for gold particles to fall off or be cleaned.

[0060] In this embodiment, a sedimentation container 8 is provided below the end of the chute body 1, and a tilting plate 11 corresponding to the sedimentation container 8 is provided on the bottom plate of the chute body 1. Specifically, the tilting plate 11 is rotatably supported by a support shaft, and a motor that drives the support shaft to rotate is provided on the side of the chute body 1. The tilting plate 11 is tilted by rotating the support shaft.

[0061] The sedimentation container 8 is equipped with a flow guide baffle 81, and the outer side of the sedimentation container 8 is equipped with a wastewater overflow outlet 82.

[0062] Specifically, when in the sorting state, the tilting plate 11 is flush with the lower end of the sluice body 1, allowing the silt to enter the subsequent dewatering screen under impact. When the sluice body 1 is in the clearing state, the tilting plate 11 tilts upward, blocking the end of the sluice body 1, allowing the minerals to be collected in the sedimentation container 8.

[0063] In this embodiment, the automatic sluice gate mechanism of the mineral processing equipment, after the sluice gate body 1 has been sorting for a certain period of time, the gaps of the gold-adhesive brushes 21 on the gold-adhesive blanket 2 will be filled with mineral particles. If the sluice gate is not cleaned at this time, the gold-containing material will be lost. An appropriate cleaning interval is set according to the content of different mining areas. When cleaning is required, the gold-adhesive blanket 2 flips so that the gold-adhesive brushes 21 face downwards, other operating units of the mineral processing equipment are shut down, the water supply system is switched to the cleaning pipe, i.e., the water pipe assembly 4, and at the same time, the flipping plate 11 flips upwards to cover the end of the sluice gate body 1, and the arc plate 51 flips so that the water spray nozzle 411 opens. The high-pressure water sprayed from the water spray nozzle 411 forms a water curtain to wash the gaps of the gold-adhesive brushes 21 and wash down the surface gold-containing material. Through the alternating action of multiple upper pressure rollers 61 and lower arching guide rollers 62, the gold-adhesive blanket 2 is repeatedly bent, the gold-adhesive brush 21 is fully opened, and with the rinsing of the high-pressure water curtain, the mineral-containing material is thoroughly cleaned. Finally, the mineral-containing material falls into the sedimentation container 8 through the tail end of the chute body 1 under the impact of the water. This ultimately achieves automatic chute cleaning.

[0064] Based on the above description in this specification, those skilled in the art will also understand that the following terms used, such as "upper," "lower," "front," "rear," "left," "right," "width," "horizontal," "top," "bottom," "inner," and "outer," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0065] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.

Claims

1. An automatic sluice box mechanism for mineral processing equipment, comprising an inclined sluice box body (1) and a gold-adhesive blanket (2) disposed on the sluice box body (1), wherein the gold-adhesive blanket (2) is provided with a gold-adhesive brush (21), characterized in that, The chute body (1) is equipped with a power mechanism (3) that drives the gold-adhesive blanket (2) to rotate. The chute body (1) is equipped with a water pipe assembly (4). The water pipe assembly (4) includes a horizontally arranged branch pipe (41). The branch pipe (41) is equipped with an upward-facing spray nozzle (411). A rotating shaft (5) is provided on one side of the branch pipe (41). An arc plate (51) is provided on the rotating shaft (5). When the gold-adhesive blanket (2) is on the bottom surface of the chute body (1), the arc plate (51) covers the spray nozzle (411). When the power mechanism (3) drives the gold-adhesive blanket (2) to rotate and be above the bottom surface of the chute body (1), the rotating shaft (5) rotates and adjusts the arc plate (51) to rotate so that the arc plate (51) is removed from the spray nozzle (411). The chute body (1) is also provided with a guide component (6). When the power mechanism (3) drives the gold-sticking blanket (2) to flip and be positioned above the bottom surface of the chute body (1), the gold-sticking blanket (2) opens up the downward-facing gold-sticking brush (21) through the action of the guide component (6).

2. The automatic chute mechanism for mineral processing equipment according to claim 1, characterized in that, The power mechanism (3) includes a flexible transmission chain (31), and one side and the middle part of the gold-bonded blanket (2) are connected to the flexible transmission chain (31).

3. The automatic chute mechanism for mineral processing equipment according to claim 1, characterized in that, The free end of the arc plate (51) is provided with a straight extension plate (52). When the arc plate (51) is placed on the branch pipe (41) to cover the water nozzle (411), the straight extension plate (52) points obliquely downward to the gold-sticking blanket (2) and there is a gap between the end of the straight extension plate (52) and the gold-sticking blanket (2).

4. The automatic chute mechanism for mineral processing equipment according to claim 3, characterized in that, The end of the arc plate (51) is provided with an arc-shaped opening sleeve (511), which is fixedly sleeved on the rotating shaft (5) by interference fit.

5. The automatic chute mechanism for mineral processing equipment according to claim 4, characterized in that, The end of the arc plate (51) is provided with a groove (512), and the bottom edge of the groove (512) is connected to the outside.

6. The automatic chute mechanism for mineral processing equipment according to claim 5, characterized in that, The rotating shaft (5) is also provided with a lower arc-shaped limiting plate (53) corresponding to the slot (512). The end of the lower arc-shaped limiting plate (53) is provided with an arc-shaped sleeve (531). The arc-shaped sleeve (531) is fixedly sleeved on the rotating shaft (5) by interference fit.

7. The automatic chute mechanism for mineral processing equipment according to claim 2, characterized in that, The guide assembly (6) includes rotating and spaced upper pressure rollers (61), and lower arching guide wheels (62) are rotatably provided between adjacent upper pressure rollers (61). The flexible transmission chain (31) in the middle and the part corresponding to the guide assembly (6) are redirected in a continuous S-shape by the cooperation of the upper pressure roller (61) and the lower arching guide wheel (62).

8. The automatic chute mechanism for mineral processing equipment according to claim 7, characterized in that, The upper end of the chute body (1) is provided with a feeding cylinder (7), the feeding cylinder (7) is provided with a conveying auger (71), and the feeding cylinder (7) is provided with a discharge port (72) on the side opposite to the lower end of the chute body (1). The upper end of the gold-bonded blanket (2) is wound around the outside of the feed cylinder (7) via a flexible transmission chain (31).

9. The automatic chute mechanism for mineral processing equipment according to claim 1, characterized in that, A sedimentation container (8) is provided below the end of the chute body (1), and a flip plate (11) corresponding to the sedimentation container (8) is provided on the bottom plate of the chute body (1).

10. The automatic chute mechanism for mineral processing equipment according to claim 9, characterized in that, The sedimentation container (8) is provided with a flow guide baffle (81), and the outer side of the sedimentation container (8) is provided with a wastewater overflow trough (82).

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