A spiral chute for mineral processing

Abstract

This utility model relates to the field of mineral processing equipment, and particularly to a spiral chute for mineral processing, comprising a distribution cylinder, wherein a plurality of distribution pipes are connected circumferentially at intervals along the lower section of the distribution cylinder, a buffer cylinder is provided on the inner side of the distribution cylinder, a material passage gap is provided between the bottom of the buffer cylinder and the bottom wall of the distribution cylinder, and a discharge hole is provided on the buffer cylinder corresponding to the position of each distribution pipe, the upper edge of the discharge hole being higher than the position where the distribution cylinder connects to the distribution pipe. This utility model effectively solves the problems existing in the prior art by optimizing the design of the buffer cylinder.

Description

Technical Field

[0001] This utility model relates to the field of mineral processing equipment, and in particular to a spiral chute for mineral processing. Background Technology

[0002] Spiral sluices are widely used mineral processing equipment that utilizes gravity and centrifugal force for the initial separation of mineral particles. The top of a spiral sluice is typically equipped with a distribution hopper to evenly disperse the minerals transported by the conveying pipes into each sluice. Currently, common spiral sluice distribution hopper structures are often similar to the spiral ore separator disclosed in utility model patent application number 201821964784.X, which uses pipes arranged around a cylindrical structure (distribution cylinder). After the minerals are transported to the cylindrical structure, they are distributed to different sluices through these pipes.

[0003] Currently, existing mineral separators of this type, due to the relatively large inner diameter of the cylindrical structure and the relatively small aperture of the discharge pipe, tend to cause particle deposition and agglomeration of minerals flowing into the cylindrical structure at low flow rates. This not only reduces the uniformity of the discharge pipe but also easily leads to blockages over long-term use. While the impact force of the flowing minerals can mitigate these problems at higher flow rates, high-velocity minerals can easily break the discharge pipe, especially causing wear at the connection between the cylindrical structure and the discharge pipe. Based on these issues, this application proposes a spiral chute for mineral processing. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a spiral chute for mineral processing, which effectively solves the problems existing in the prior art by optimizing the setting of the buffer cylinder.

[0005] To address the aforementioned problems, this utility model provides a spiral chute for mineral processing, comprising a distribution cylinder, with multiple distribution pipes spaced apart along the lower section of the distribution cylinder on its circumference, a buffer cylinder provided on the inner side of the distribution cylinder, a material passage gap between the bottom of the buffer cylinder and the bottom wall of the distribution cylinder, and a discharge hole provided on the buffer cylinder corresponding to the position of each distribution pipe, the upper edge of the discharge hole being higher than the position where the distribution cylinder connects to the distribution pipe.

[0006] Furthermore, the material distribution cylinder is also provided with a feed pipe on the upper side of the slowing cylinder, and the center of the lower section of the feed pipe coincides with the center of the slowing cylinder and the center of the material distribution cylinder.

[0007] Furthermore, the outer edge of the feed pipe is provided with a plurality of upper fixing ribs spaced apart along its circumference, and the outer edge of the upper fixing ribs abuts against the feed distribution cylinder.

[0008] Furthermore, the outer edge of the slowing cylinder is provided with a plurality of lower fixing ribs spaced apart along its circumference. The outer edge of the lower fixing ribs abuts against the distribution cylinder, and at least one discharge space of the discharge hole and the feed space of the distribution pipe are formed between two adjacent lower fixing ribs.

[0009] Furthermore, the slowing cylinder and the lower fixing rib are integrally connected, and the lower fixing rib and the distributing cylinder are configured to be separable.

[0010] Furthermore, a base plate is also connected to the bottom of the lower fixing rib, and the material passing gap is between the material buffer cylinder and the base plate.

[0011] Furthermore, the bottom wall of the dispensing cylinder is provided with a lower insert portion, and the bottom of the base plate is provided with an upper insert portion that cooperates with the lower insert portion.

[0012] Furthermore, the lower insert portion is configured as a slot, and the upper insert portion is configured as an insert block.

[0013] Furthermore, the lower fixing rib is welded to the material distribution cylinder.

[0014] Furthermore, a fixing ring is provided at the bottom of the dispensing cylinder.

[0015] The beneficial effect of this utility model is that by optimizing the setting of the slow-feeding cylinder, the problems existing in the prior art are effectively solved. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0018] Figure 2 for Figure 1 The diagram shows a top view of the material distribution hopper in the embodiment shown.

[0019] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction.

[0020] The components are: 1. material distribution cylinder; 2. material distribution pipe; 3. material buffer cylinder; 4. material passage gap; 5. material outlet; 6. material inlet pipe; 7. upper fixing rib; 8. lower fixing rib plate; 9. base plate; 10. slot; 11. insert block; 12. fixing ring. Detailed Implementation

[0021] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0022] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0023] Furthermore, it should be understood in the description of this utility model that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies at the connection point are not connected by an intermediate structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0025] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] In this utility model, such as Figure 1-3As shown, a spiral chute for mineral processing is provided, including a distribution cylinder 1. The lower section of the distribution cylinder 1 is connected with a plurality of distribution pipes 2 at intervals along its circumference. A buffer cylinder 3 is provided on the inner side of the distribution cylinder 1. A material passage gap 4 is provided between the bottom of the buffer cylinder 3 and the bottom wall of the distribution cylinder 1. The buffer cylinder 3 is provided with discharge holes 5 corresponding to the positions of each distribution pipe 2. The upper edge of the discharge hole 5 is higher than the position where the distribution cylinder 1 is connected to the distribution pipe 2.

[0027] In use, the sorting hopper of this invention conveys the minerals to be sorted into a buffer cylinder. The buffer cylinder partially reduces the lateral impact of the incoming minerals, thus lowering the velocity at which the minerals directly impact the inlet of the sorting pipe 2. Some minerals flow through the material passage 4 to the outside of the buffer cylinder before flowing into the sorting pipe 2. This increases the fluidity of the minerals at the bottom wall of the sorting cylinder 1, preventing mineral deposition. Some minerals flow through the discharge hole out of the buffer cylinder 3 before flowing into the inlet of the sorting pipe 2. This not only promotes uniform outward flow of minerals from the buffer cylinder 3, preventing overflow from the top of the buffer cylinder 3, but also allows the minerals flowing from top to bottom through the discharge hole 5 to impact and mix with the minerals flowing from bottom to top through the material passage 4, further improving the uniformity of mineral discharge. The mixing of these two streams of minerals reduces the velocity of the minerals flowing into the inlet of the sorting pipe 2, thereby reducing wear on the sorting cylinder 1 and the sorting pipe 2.

[0028] Therefore, this invention can reduce the high-speed impact of minerals at the inlet of the distribution pipe 2 when the mineral flow rate entering the distribution hopper is high, which helps to reduce the wear of the distribution cylinder 1 at the distribution pipe 2 position. Furthermore, the material passage gap 4 prevents the formation of deposits and agglomerates inside the distribution cylinder 1.

[0029] In the illustrated embodiment, to further specify the structure of this utility model, the distributing cylinder 1 is also provided with a feed pipe 6 on the upper side of the buffer cylinder 3. The center of the lower section of the feed pipe 6 coincides with the center of the buffer cylinder 3 and the center of the distributing cylinder 1. As shown in the figure, by providing the feed pipe 6, an external mineral feeding device can be connected to the upper end of the feed pipe 6, so that the mineral can enter the inner side of the buffer cylinder 3 relatively evenly through the lower end of the feed pipe 6, thereby allowing the material passing through the material passage gap 4 at the bottom wall of the buffer cylinder 3 and the discharge hole 5 of the buffer cylinder 3 to be uniformly discharged.

[0030] In the illustrated embodiment, specifically regarding the structure of this utility model, the outer edge of the feed pipe 6 is provided with a plurality of upper fixing ribs 7 spaced apart along its circumference, and the outer edge of the upper fixing ribs 7 abuts against the distributing cylinder 1. As shown in the figure, by providing the upper fixing ribs 7, the feed pipe 6 can be stably laterally supported by the upper fixing ribs 7 to maintain the stability of the lower edge position of the feed pipe 6.

[0031] In the illustrated embodiment, for the structure of this utility model, more specifically, the outer edge of the slowing cylinder 3 is provided with a plurality of lower fixing ribs 8 spaced apart along its circumference. The outer edge of the lower fixing ribs 8 abuts against the distributing cylinder 1, and at least one discharge space of the discharge hole 5 and the feed space of the distributing pipe 2 are formed between two adjacent lower fixing ribs 8.

[0032] As shown in the figure, the lower fixing rib 8 provides lateral support for the buffer cylinder 3, stabilizing its position. The lower fixing rib 8 also separates the minerals between the buffer cylinder 3 and the distribution cylinder 1, reducing lateral flow of the minerals before they enter the distribution pipe 2. This prevents high-speed lateral impacts from the minerals before they enter the distribution pipe 2, thus reducing wear on the inlet of the distribution pipe 2.

[0033] In the illustrated embodiment, a lower fixing rib plate 8 is provided on each side of a single distribution pipe 2, so that the mineral between two adjacent lower fixing rib plates 8 can be discharged from a single distribution pipe 2.

[0034] In a preferred embodiment, a further optimization of the structure of this utility model is that the slowing cylinder 3 and the lower fixing rib plate 8 are integrally connected, and the lower fixing rib plate 8 and the distributing cylinder 1 are configured to be separable.

[0035] This allows the buffer cylinder 3 to be removed and replaced when it becomes worn.

[0036] Regarding the installation of the upper fixing rib 7 and the feed pipe 6, it is preferable to spot weld the upper fixing rib 7 to the feed cylinder 1. The upper fixing rib 7 can be reinstalled each time the feed cylinder 3 is removed.

[0037] In the illustrated embodiment, to further specify the structure of this utility model, the bottom of the lower fixing rib plate 8 is also connected to a bottom plate 9, and the material passing gap 4 is provided between the material passing cylinder 3 and the bottom plate 9.

[0038] As shown in the figure, by setting the bottom plate 9, the direct impact of the incoming minerals on the bottom of the distribution cylinder 1 can be reduced, thereby further improving the durability of the distribution cylinder 1.

[0039] In the illustrated embodiment, more specifically regarding the structure of this utility model, the bottom wall of the dispensing cylinder 1 is provided with a lower insert portion, and the bottom of the bottom plate 9 is provided with an upper insert portion that cooperates with the lower insert portion.

[0040] This prevents the lower fixed rib plate 8 from rotating due to the rotation of the feed cylinder 3, thus maintaining the stability of the lower fixed rib plate 8.

[0041] In the illustrated embodiment, more specifically regarding the structure of this utility model, the lower insert portion is configured as a slot 10, which is formed by the recess of the bottom wall of the dispensing cylinder, and the upper insert portion is configured as an insert block 11.

[0042] In an optional embodiment, more specifically regarding the structure of this utility model, the lower fixing rib plate 8 is welded to the material distribution cylinder 1.

[0043] In the illustrated embodiment, more specifically, regarding the structure of this utility model, there are four material distribution pipes 2.

[0044] In the illustrated embodiment, a further optimization of the structure of this utility model is that a fixing ring 12 is provided at the bottom of the dispensing cylinder 1.

[0045] As shown in the figure, by setting a fixing ring 12 at the bottom of the distributing cylinder 1, the fixing ring 12 can be sleeved on the support column in the middle of the spiral chute, thereby facilitating the fixing of the distributing cylinder 1.

[0046] It should be noted that the "mineral" referred to in this utility model is a water mixture containing mineral particles and powder, and does not refer solely to mineral particles and powder.

[0047] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on its differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0048] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A spiral chute distribution hopper for mineral separation, characterized in that, The device includes a material distribution cylinder, the lower section of which is connected to multiple material distribution pipes at intervals along its circumference. A material buffer cylinder is provided on the inner side of the material distribution cylinder. A material passage gap is provided between the bottom of the material buffer cylinder and the bottom wall of the material distribution cylinder. The material buffer cylinder is provided with a discharge hole corresponding to the position of each material distribution pipe. The upper edge of the discharge hole is higher than the position where the material distribution cylinder is connected to the material distribution pipe.

2. A spiral chute distribution hopper for mineral separation according to claim 1, characterised in that, The material distribution cylinder is also provided with a feed pipe on the upper side of the slowing cylinder, and the center of the lower section of the feed pipe coincides with the center of the slowing cylinder and the center of the material distribution cylinder.

3. A spiral chute distribution hopper for mineral separation according to claim 2, characterised in that, The outer edge of the feed pipe is provided with a plurality of upper fixing ribs spaced apart along its circumference, and the outer edge of the upper fixing ribs abuts against the feed distribution cylinder.

4. The spiral chute distribution hopper for ore dressing according to claim 1, characterized in that, The outer edge of the slowing cylinder is provided with a plurality of lower fixing ribs spaced apart along its circumference. The outer edge of the lower fixing ribs abuts against the distribution cylinder, and at least one discharge space of the discharge hole and the feed space of the distribution pipe are formed between two adjacent lower fixing ribs.

5. The spiral chute feeder for mineral processing according to claim 4, characterized in that, The slowing cylinder and the lower fixing rib are integrally connected, and the lower fixing rib and the distributing cylinder are configured to be separable.

6. The spiral chute for mineral processing according to claim 5, characterized in that, The bottom of the lower fixing rib is also connected to a base plate, and the material passing gap is between the material buffer cylinder and the base plate.

7. The spiral chute for mineral processing according to claim 6, characterized in that, The bottom wall of the dispensing cylinder is provided with a lower insert part, and the bottom of the base plate is provided with an upper insert part that cooperates with the lower insert part.

8. The spiral chute feeder for mineral processing according to claim 7, characterized in that, The lower insertion part is configured as a slot, and the upper insertion part is configured as a plug.

9. The spiral chute for mineral processing according to claim 4, characterized in that, The lower fixing rib is welded to the material distribution cylinder.

10. The spiral chute feeder for mineral processing according to claim 9, characterized in that, The bottom of the dispensing cylinder is equipped with a fixing ring.

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