A feeding device for improving the processing capacity of a screw chute

Abstract

This utility model provides a feeding device for increasing the throughput of spiral chute, including a mounting frame and several supports. The mounting frame is equipped with a main cylinder and a feed pipe for feeding material to the main cylinder. The inner cavity of the main cylinder is equipped with a feed cylinder and an annular baffle. The inner wall of the annular baffle and the outer wall of the feed cylinder form an inner annular groove, and the outer wall of the annular baffle and the inner wall of the main cylinder form an outer annular groove. The main cylinder is equipped with several feed pipes that communicate with the outer annular groove. The side wall of the feed cylinder near the bottom end is equipped with several communication ports that communicate with the inner annular groove. Each support is equipped with a spiral chute body, and a diversion cylinder is provided above each spiral chute body. The diversion cylinder is connected to several diversion pipes. The main cylinder connects several spiral chute bodies in parallel through several feed pipes, thereby increasing the overall throughput. Furthermore, the annular baffle forms an inner and outer annular groove structure, and the overflow structure reduces slurry disturbance, reduces the stirring of heavy ore, facilitates smooth diversion work, and improves the mineral processing effect.

Description

Technical Field

[0001] This utility model relates to the field of mineral processing technology, specifically to a feeding device for increasing the throughput of a spiral chute. Background Technology

[0002] Spiral sluices primarily rely on gravity, centrifugal force, and fluid dynamics to drive the slurry into a lateral circulation during its movement. Minerals stratify vertically according to density, with heavier minerals at the bottom and lighter minerals at the top. The upper layer of water experiences less resistance and has a higher velocity, resulting in greater centrifugal force that causes it to flow outwards. The lower layer of water experiences greater resistance and a slower velocity, resulting in less centrifugal force and flowing inwards under gravity. The lighter minerals in the upper layer flow with the upper water towards the outer edge of the channel, forming tailings, while the heavier minerals in the lower layer flow with the lower water towards the inner edge of the channel, forming concentrate. A cylindrical distributor is typically installed above the spiral sluice, connected to multiple distribution pipes. These pipes guide the slurry to various locations at the top of the spiral sluice, effectively promoting uniform slurry distribution and preventing localized overload or reduced separation efficiency due to uneven distribution, thus improving the overall beneficiation effect. However, the existing single spiral chute has a limited feed capacity, which cannot meet the needs of high-volume mineral processing. In addition, during high-volume mineral processing, the feed flow rate of the slurry is usually increased. However, if the slurry flow rate is too fast, turbulence and eddies can easily form, causing heavy minerals to be stirred up and reducing the mineral processing effect. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of the aforementioned technologies by proposing a feeding device that increases the throughput of a spiral chute, thereby solving the problems described above.

[0004] This utility model provides a feeding device for improving the throughput of a spiral chute, including a mounting frame and several supports. The mounting frame is equipped with a main cylinder and a feeding pipe. The inner cavity of the main cylinder is equipped with a feeding cylinder and an annular baffle. The feeding pipe extends into the inner cavity of the feeding cylinder. The annular baffle is arranged around the outer periphery of the feeding cylinder. The inner wall of the annular baffle and the outer wall of the feeding cylinder form an inner annular groove. The outer wall of the annular baffle and the inner wall of the main cylinder form an outer annular groove. The main cylinder is equipped with several feeding pipes that communicate with the outer annular groove. The side wall of the feeding cylinder near the bottom end is equipped with several communication ports that connect the inner cavity of the feeding cylinder to the inner annular groove. Each support is equipped with a spiral chute body. A diverter cylinder is arranged above each spiral chute body. Several diverter pipes are connected to the bottom of the diverter cylinder.

[0005] Preferably, each of the feed pipes is equipped with a valve.

[0006] Preferably, the height of the annular baffle is greater than the height of the connecting opening.

[0007] Preferably, the upper end of the diverter is provided with a limiting frame, the middle part of the limiting frame is provided with a through hole for the feed pipe to pass through, and the feed pipe is provided with an abutting plate that abuts against the limiting frame.

[0008] Preferably, the number of the diversion tubes is four, and the four diversion tubes are arranged in a circumferential array on the diversion cylinder.

[0009] Preferably, the support is provided with a plurality of rectangular tubes, which are aligned with a plurality of diversion pipes and located below the diversion pipes. The top of the rectangular tubes is an open structure, and one end of the rectangular tube is provided with a discharge port. The width of the discharge port is greater than the diameter of the diversion pipe.

[0010] Preferably, the bottom of the rectangular cylinder is provided with a first inclined section to guide the slurry flow toward the discharge port.

[0011] Preferably, a baffle is provided at the top of the rectangular cylinder, and a second inclined portion is provided on the baffle to guide the slurry flow to the discharge port.

[0012] Preferably, the bottom of the main cylinder is provided with a cleaning pipe that communicates with the inner cavity of the feeding cylinder, and a valve is provided on the cleaning pipe.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] The main cylinder connects several spiral sluice bodies in parallel via several feed pipes, distributing large volumes of slurry to multiple spiral sluice bodies. Multiple spiral sluice bodies simultaneously perform mineral processing, increasing the overall throughput. After the slurry enters the main cylinder through the feed pipes, it flows to the bottom of the main cylinder and then through several connecting ports at the bottom to the inner annular trough. At this point, the annular baffles stabilize the slurry flow. The slurry continuously accumulates in the inner annular trough and then overflows to the outer annular trough, where it is distributed to several spiral sluice bodies via several feed pipes for mineral processing. The overflow structure formed by the main cylinder, feed cylinder, several connecting ports on the bottom sidewall of the feed cylinder, and annular baffles reduces slurry disturbance, minimizes the stirring of heavy minerals, facilitates smooth flow distribution, and improves mineral processing efficiency. 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 will be briefly introduced below. Obviously, the drawings described below are only preferred 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 1This is a schematic diagram of the structure of one embodiment of the present utility model;

[0017] Figure 2 This is a structural schematic diagram of the main cylinder in a certain embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of the main cylinder in a certain embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the bracket in one embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of the flow divider in one embodiment of the present invention;

[0021] Figure 6 This is a schematic diagram of the structure of the flow divider and rectangular tube in a certain embodiment of the present invention.

[0022] In the diagram, 1-mounting frame; 11-feed pipe; 2-support; 21-spiral chute body; 3-main cylinder; 31-feed pipe; 311-abutment plate; 32-inner annular groove; 33-outer annular groove; 4-feed cylinder; 41-connecting port; 5-annular baffle; 6-diverter cylinder; 61-diverter pipe; 7-limiting frame; 71-perforation; 8-rectangular cylinder; 81-discharge port; 82-first inclined part; 83-baffle; 831-second inclined part; 9-cleaning pipe. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0024] Example 1:

[0025] Reference Figures 1 to 6This utility model provides a feeding device for improving the throughput of a spiral chute, including a mounting frame 1 and several supports 2. The mounting frame 1 is provided with a main cylinder 3 and a feeding pipe 11. The inner cavity of the main cylinder 3 is provided with a feeding cylinder 4 and an annular baffle 835. The feeding pipe 11 extends into the inner cavity of the feeding cylinder 4. The annular baffle 835 is arranged around the outer periphery of the feeding cylinder 4. The inner wall of the annular baffle 835 and the outer wall of the feeding cylinder 4 form an inner annular groove 32. The outer wall of the annular baffle 835 and the inner wall of the main cylinder 3 form an outer annular groove 33. The main cylinder 3 is provided with several feeding pipes 31 that communicate with the outer annular groove 33. The side wall of the feeding cylinder 4 near the bottom end is provided with several connecting ports 41 that connect the inner cavity of the feeding cylinder 4 with the inner annular groove 32. Each support 2 is provided with a spiral chute body 21. Each spiral chute body 21 is provided with a diverter cylinder 6 above it. The bottom of the diverter cylinder 6 is connected to several diverter pipes 61.

[0026] The main cylinder 3 connects several spiral chute bodies 21 in parallel through several feed pipes 31, distributing a large volume of slurry to multiple spiral chute bodies 21. Multiple spiral chute bodies 21 simultaneously carry out mineral processing, increasing the overall throughput. After the slurry enters the main cylinder 3 from the feed pipe 11, it flows to the bottom of the main cylinder 3 and then flows to the inner annular trough 32 through several connecting ports 41 at the bottom. At this time, the annular baffle 835 plays a stabilizing role in the flow of the slurry. The slurry continuously accumulates in the inner annular trough 32 and then overflows to the outer annular trough 33. It is then distributed to several spiral chute bodies 21 through several feed pipes 31 in the outer annular trough 33 for mineral processing. The overflow structure formed by the main cylinder 3, the feed cylinder 4, several connecting ports 41 on the bottom side wall of the feed cylinder 4, and the annular baffle 835 reduces slurry disturbance, reduces the stirring of heavy minerals, facilitates smooth diversion, and improves the mineral processing effect.

[0027] Specifically, each feed pipe 31 is equipped with a valve.

[0028] By installing valves on the feed pipes 31, the opening and closing of each feed pipe 31 can be adjusted as needed to adjust the number of spiral chute bodies 21 used in parallel. During use, idle spiral chute bodies 21 can be disassembled, cleaned, and replaced. The flow rate of each feed pipe 31 can also be adjusted as needed through the valves, which is beneficial to the normal operation of mineral processing.

[0029] Example 2:

[0030] Reference Figure 5In conjunction with the technical solution of Embodiment 1, in this embodiment, a limiting frame 7 is provided at the upper end of the diverter 6, and a through hole 71 is provided in the middle of the limiting frame 7 for the feed pipe 31 to pass through. An abutment plate 311 that abuts against the limiting frame 7 is provided on the feed pipe 31. The above structure is used to install the feed pipe 31 and the diverter 6, and the feed pipe 31 is limited by the through hole 71, so that the slurry in the feed pipe 31 can flow to the diverter 6 relatively smoothly.

[0031] Specifically, there are four diversion tubes 61, which are arranged in a circular array on the diversion cylinder 6.

[0032] The distribution pipes 61 are arranged in a circular array, which facilitates the even distribution of the slurry in the distribution cylinder 6 to various positions on the upper end of the spiral chute body 21. This promotes the even distribution of the slurry on the spiral chute body 21, reduces excessive concentration of the slurry, and makes the mineral particles evenly dispersed, thereby improving the mineral processing effect. In addition, it also has the function of balancing the flow rate, reducing turbulent or rapid flow conditions, and improving the mineral processing effect.

[0033] Example 3:

[0034] Reference Figures 4 to 6 In combination with the technical solutions of Embodiment 1 and Embodiment 2, in this embodiment, a plurality of rectangular tubes 8 are provided on the support 2. The plurality of rectangular tubes 8 are aligned with a plurality of diversion pipes 61 and located below the diversion pipes 61. The top of the rectangular tube 8 is an open structure, and one end of the rectangular tube 8 is provided with a discharge port 81. The width of the discharge port 81 is greater than the diameter of the diversion pipe 61.

[0035] By utilizing the design of the discharge port 81, which is wider than the direct discharge port 61, the slurry can be fully diffused at the bottom of the rectangular cylinder 8 and form a slurry with a wide flow area at the discharge port 81, further driving the mineral particles to disperse evenly, thereby improving the mineral processing effect.

[0036] Specifically, the bottom of the rectangular cylinder 8 is provided with a first inclined part 82 that guides the slurry to flow toward the discharge port 81.

[0037] By setting the first inclined part 82, the slurry can be effectively guided to flow through the discharge port 81 to the spiral chute body 21, thus avoiding slurry accumulation.

[0038] Specifically, a baffle 83 is provided at the top of the rectangular cylinder 8, and a second inclined part 831 is provided on the baffle 83 to guide the slurry to the discharge port 81.

[0039] By setting baffle 83, the slurry droplets agitated when the diversion pipe 61 delivers slurry to the rectangular cylinder 8 can be collected, and the slurry droplets can be transported to the spiral chute body 21 through the discharge port 81 in conjunction with the second inclined part 831.

[0040] Example 4:

[0041] Reference Figure 3 In conjunction with the technical solutions of Embodiments 1 to 3, in this embodiment, the bottom of the main cylinder 3 is provided with a cleaning pipe 9 that communicates with the inner cavity of the feeding cylinder 4, and a valve is provided on the cleaning pipe 9.

[0042] A cleaning pipe 9 with a valve is installed. During mineral processing, the valve at cleaning pipe 9 is normally closed. When cleaning the entire equipment is required, the valve at cleaning pipe 9 is kept closed, and clean water is injected into the inner cavity of the feed cylinder 4. The clean water flows along the connecting port 41, inner annular groove 32, outer annular groove 33, several feed pipes 31, diverter 6, several diverter pipes 61, and several spiral chute bodies 21 for cleaning. After cleaning, the valve at cleaning pipe 9 is opened, and the clean water in the outer annular groove 33 can be discharged from several feed pipes 31, and the clean water in the inner annular groove 32 can be discharged from cleaning pipe 9, thus completing the cleaning and subsequent drainage. A water pipe for discharging wastewater can be connected to cleaning pipe 9 to guide the wastewater to a designated discharge location.

[0043] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this utility model. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of this utility model without departing from the scope of the technical solution of this utility model shall fall within the protection scope of this technical solution.

Claims

1. A feeding device for increasing the throughput of a screw chute, characterized in that The system includes a mounting frame and several supports. The mounting frame is equipped with a main cylinder and a feeding pipe. The main cylinder has a feeding cylinder and an annular baffle inside. The feeding pipe extends into the inner cavity of the feeding cylinder. The annular baffle surrounds the outer circumference of the feeding cylinder. The inner wall of the annular baffle and the outer wall of the feeding cylinder form an inner annular groove. The outer wall of the annular baffle and the inner wall of the main cylinder form an outer annular groove. The main cylinder has several feeding pipes that communicate with the outer annular groove. The side wall of the feeding cylinder near the bottom has several connecting ports that connect the inner cavity of the feeding cylinder to the inner annular groove. Each support is equipped with a spiral chute body. Each spiral chute body has a diverter cylinder above it. The bottom of the diverter cylinder is connected to several diverter pipes.

2. The feeding device for increasing the throughput of a spiral chute according to claim 1, characterized in that: Each of the feed pipes is equipped with a valve.

3. The feeding device for increasing the throughput of a spiral chute according to claim 1, characterized in that: The height of the annular baffle is greater than the height of the connecting opening.

4. The feeding device for increasing the throughput of a spiral chute according to claim 1, characterized in that: The upper end of the diverter is provided with a limiting frame, the middle of the limiting frame is provided with a through hole for the feed pipe to pass through, and the feed pipe is provided with an abutment plate that abuts against the limiting frame.

5. The feeding device for increasing the throughput of a spiral chute according to claim 1, characterized in that: The number of the flow dividers is four, and the four flow dividers are arranged in a circular array on the flow divider cylinder.

6. The feeding device for increasing the throughput of a spiral chute according to claim 1, characterized in that: The support is provided with a number of rectangular tubes, which are aligned with a number of diversion pipes and located below the diversion pipes. The top of the rectangular tubes is open, and one end of the rectangular tube is provided with a discharge port. The width of the discharge port is greater than the diameter of the diversion pipe.

7. A feeding device for increasing the throughput of a spiral chute according to claim 6, characterized in that: The bottom of the rectangular cylinder is provided with a first inclined section to guide the slurry flow to the discharge port.

8. A feeding device for increasing the throughput of a spiral chute according to claim 6, characterized in that: The top of the rectangular cylinder is provided with a baffle, and the baffle is provided with a second inclined part to guide the slurry to the discharge port.

9. A feeding device for increasing the throughput of a spiral chute according to claim 1, characterized in that: The bottom of the main cylinder is provided with a cleaning pipe that communicates with the inner cavity of the feeding cylinder, and a valve is provided on the cleaning pipe.

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