Ore feeding device for gravity separation process

Abstract

The utility model relates to the technical field of reselection beneficiation, in particular to an ore feeding device for a reselection process. The ore feeding device for the gravity separation process comprises a spiral chute, an ore separator is further arranged above the spiral chute, a plurality of ore feeding pipes are arranged on the side face of the ore separator in the circumferential direction at intervals and used for transporting ore pulp, and elastic buffering sleeves are connected to the tail ends of the bottoms of the ore feeding pipes and used for slowing down the flow speed of the ore pulp. The ore pulp in the ore feeding pipe is directly blocked through the elastic buffering sleeve, the flow speed of the ore pulp at the inlet of the spiral chute can be effectively reduced, and therefore the phenomenon of deviation and tail running is avoided, the ore separation accuracy of the ore separator in the gravity separation process can be ensured, and the problem that the separation efficiency is low due to the fact that the flow speed of the ore pulp is too high is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of gravity separation mineral processing technology, and specifically to a feeding device for a gravity separation process. Background Technology

[0002] In the mineral processing industry, gravity separation is a common process. Gravity separation is a mineral processing method that uses the differences in relative density, particle size, and shape between the mineral particles to be separated, as well as the differences in their speed and direction of movement in the medium, to separate them from each other.

[0003] Spiral sluices are commonly used to perform large-scale gravity separation of iron ore using water as a medium. When conventional spiral sluices process slurries with large flow rates, the slurry flowing into the spiral sluices has a high flow rate and a large centrifugal force, which causes the tailings to deviate and run off, resulting in a large tailings output. This requires repeated processing, which in turn increases the workload. Utility Model Content

[0004] The purpose of this invention is to solve the problem of deviation and tailing in conventional gravity separation processes when spiral chute handles large flow rates of slurry. This invention provides a feeding device for gravity separation processes that can reduce the flow rate of slurry at the spiral chute, thus avoiding the problem of low separation efficiency caused by excessively high slurry flow rate.

[0005] To achieve the above objectives, this utility model provides a feeding device for a gravity separation process. The feeding device includes a spiral chute, a separator is provided above the spiral chute, and several feed pipes are circumferentially spaced on the side of the separator for the flow of slurry to the spiral chute. An elastic buffer sleeve is connected to the bottom end of the feed pipe to slow down the flow rate of the slurry.

[0006] Preferably, the top end of the feed pipe is connected to the bottom end of the separator, and the angle between the bottom end of the feed pipe and the horizontal plane is set within the range of 30° and 60°.

[0007] Preferably, one end of the elastic buffer sleeve is fixedly connected to the ore feed pipe, and the other end is provided with several openings for the flow of ore slurry.

[0008] Preferably, the bottom surface of the feed pipe is provided with a feed beam for fixing the feed pipe.

[0009] Preferably, the bottom end of the spiral chute is also connected to a receiving trough, which is used to receive the processed slurry in a classified manner.

[0010] Preferably, a support base is also connected below the spiral chute, the support base being used to support the spiral chute.

[0011] The above technical solution directly blocks the slurry in the feed pipe through the elastic buffer sleeve, which can effectively reduce the slurry flow rate at the inlet of the spiral chute, thereby avoiding deviation and tailing phenomenon. This ensures the accuracy of ore separation by the separator during gravity separation and effectively solves the problem of low separation efficiency caused by excessively fast slurry flow rate. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a feeding device for a gravity separation process provided by this utility model;

[0013] Figure 2 yes Figure 1 Top view;

[0014] Figure 3 This is a schematic diagram of the elastic buffer sleeve part in this device.

[0015] Explanation of reference numerals in the attached figures

[0016] 1. Spiral chute; 2. Ore separator; 3. Feed pipe; 4. Elastic buffer sleeve; 5. Feed beam; 6. Ore receiving trough; 7. Support base; 41. Opening. Detailed Implementation

[0017] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0018] like Figure 1-3 As shown, this utility model provides a feeding device for a gravity separation process. The feeding device includes a spiral chute 1, with a separator 2 positioned above the spiral chute 1. Several feed pipes 3 are spaced circumferentially along the side of the separator 2 to allow slurry to flow into the spiral chute 1. An elastic buffer sleeve 4 is connected to the bottom end of each feed pipe 3 to slow down the slurry flow rate. Through this technical solution, the elastic buffer sleeve directly blocks the slurry in the feed pipe, effectively reducing the slurry flow rate at the spiral chute inlet, thus preventing deviation and tailing of the slurry. This ensures the accuracy of the separator's separation during gravity separation and effectively solves the problem of low separation efficiency caused by excessively high slurry flow rate.

[0019] In the technical solution provided by this utility model, the top end of the feed pipe 3 is connected to the bottom of the separator 2, and the angle between the bottom end of the feed pipe 3 and the horizontal plane is set within the range of 30° and 60°. This design allows the slurry to flow smoothly along the trough when flowing from the feed pipe 3 into the spiral chute 1, avoiding damage to the spiral chute 1 caused by vertical impact. In some embodiments, a stirring device can be installed in the separator 2 to avoid problems such as solid accumulation in the slurry or solid-liquid imbalance leading to blockage or low separation efficiency.

[0020] According to the feeding device provided by this utility model, one end of the elastic buffer sleeve 4 is fixedly connected to the feeding pipe 3, and the other end is provided with a plurality of openings 41 for the flow of slurry. This utility model does not impose a special limitation on the number of openings 41, but it should be noted that the elastic buffer sleeve 4 is a key component for reducing the slurry flow rate. The surface area of ​​its plurality of openings 41 is at least twice that of the inlet at the connection with the feeding pipe 3. Under different total flow rates, the slurry flow rate is reduced by increasing the discharge area at the slurry inlet of the spiral chute. Furthermore, while reducing the slurry flow rate, a single opening 41 should not obstruct the normal passage of ore in the slurry. In some embodiments, the elastic buffer sleeve is made of rubber, and the openings 41 can expand and contract to a certain extent, making it less prone to ore accumulation and blockage at the openings 41.

[0021] In the technical solution provided by this utility model, a feed beam 5 for fixing the feed pipe 3 is provided on the bottom surface of the feed pipe 3. In conventional spiral chute gravity separation devices, the stability of the device is generally achieved by fixing the separator 2 and then fixing the feed pipe 3 to the separator 2. However, the feed device of this gravity separation process has an elastic buffer sleeve fixedly connected to the feed pipe 3. The elastic buffer sleeve 4 needs a large load-bearing capacity due to the impact of the slurry during use, while the separator 2 is fixed by a conventional bracket.

[0022] In some embodiments, the bottom end of the spiral chute 1 is further connected to a receiving trough 6, which is used to receive the processed slurry. A support base 7 is also connected below the spiral chute 1, which is used to support the spiral chute 1 in various ways.

[0023] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A feeding device for a gravity separation process, characterized in that, It includes a spiral chute (1), a ore separator (2) is provided above the spiral chute (1), and several feed pipes (3) are arranged circumferentially on the side of the ore separator (2) for the slurry to flow to the spiral chute (1). The bottom end of the feed pipe (3) is connected to an elastic buffer sleeve (4) to slow down the slurry flow rate.

2. The feeding device for the gravity separation process according to claim 1, characterized in that, The top end of the feed pipe (3) is connected to the bottom of the ore separator (2), and the angle between the bottom end of the feed pipe (3) and the horizontal plane is set to be within the range of 30° and 60°.

3. The feeding device for the gravity separation process according to claim 1, characterized in that, One end of the elastic buffer sleeve (4) is fixedly connected to the ore feed pipe (3), and the other end is provided with a number of openings (41) for the flow of ore slurry.

4. The feeding device for the gravity separation process according to claim 1, characterized in that, The bottom surface of the feed pipe (3) is provided with a feed beam (5) for fixing the feed pipe (3).

5. The feeding device for the gravity separation process according to claim 1, characterized in that, The bottom end of the spiral chute (1) is also connected to a receiving trough (6), which is used to classify and receive the processed slurry.

6. The feeding device for the gravity separation process according to claim 1, characterized in that, A support base (7) is also connected below the spiral chute (1), and the support base (7) is used to support the spiral chute (1).

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