Detachable enrichment conical mechanism for centrifugal concentrator

Abstract

The utility model provides a detachable enriching conical mechanism for a centrifugal concentrator, which comprises a bottom-layer enriching ring, middle-layer enriching rings and a top-layer enriching ring, the middle-layer enriching rings are mutually spliced, and the enriching rings are tightly attached. By means of the detachable centrifugal enrichment conical mechanism, in-situ detection and analysis of concentrate products can be achieved, the purpose of ring-by-ring research on the centrifugal enrichment mechanism is achieved, errors caused by different rotation radiuses of mineral particles in different enrichment rings and different backflushing water effects are avoided, research on the separation mechanism from the microcosmic angle is achieved, and the separation efficiency is improved. The enrichment conical structure capable of being disassembled and assembled is adopted, the structure parameters of all the enrichment rings can be adjusted according to research requirements, such as the number of the enrichment rings, the radius of the enrichment rings, the number and distribution of backflushing water holes, the side wall height of the enrichment rings and the depth of the enrichment rings, and the separation mechanism of the centrifugal separator is researched more comprehensively; and main influence factors are found out to provide a solid theoretical basis and test data.

Description

Technical Field

[0001] The utility model relates to a detachable enrichment cone mechanism for a centrifugal concentrator. Background Art

[0002] Centrifugal concentrators are widely used in the beneficiation process of gold, platinum group metal ores, etc. due to their good beneficiation effect. With the gradual depletion of easy-to-benefit ore resources around the world, the comprehensive utilization of difficult-to-benefit ores has become an urgent problem to be solved. Against this background, centrifugal concentrators represented by Nelson concentrators and Falcon concentrators came into being. Centrifugal concentrators are a type of gravity separation equipment that uses centrifugal force to strengthen the gravity separation process, so that fine mineral particles can be more effectively recovered. Its main advantages are large processing capacity, low recovery particle size limit, stable operation, and easy operation. Centrifugal concentrators can be divided into two categories: horizontal centrifugal concentrators and vertical centrifugal concentrators. The working principle of the centrifugal concentrator is to generate a strong centrifugal force through a high-speed rotating drum to separate the particles in the slurry according to density and particle size. Under the action of centrifugal force, heavy particles are thrown to the drum wall, and light particles are discharged with the slurry as tailings. By adjusting parameters such as the drum speed, the amount of slurry fed and the pressure of the recoil water, effective separation of different mineral particles can be achieved. Centrifugal concentrators are widely used in the field of recovering precious metals such as gold, silver, copper, lead and zinc, tin, tungsten, platinum, rhodium, tantalum and niobium, and rare earth. Its appearance has successfully solved the problem of sufficient recovery of fine particles and improved the efficiency and economic benefits of mineral processing.

[0003] At present, the research on the sorting mechanism of centrifugal concentrators is still insufficient, and the influence mechanism of various factors on the sorting effect is still unclear. Through the force analysis of mineral particles in the centrifugal field, it can be known that whether a certain mineral particle can be captured by the enrichment device is related to factors such as the centrifugal force and recoil water force received by the particle, and the magnitude of the centrifugal force is closely related to the diameter of the enrichment mechanism. Therefore, to study the mineral sorting mechanism in the centrifugal concentrator, it is necessary to study the concentrate characteristics in the enrichment rings with different diameters respectively.

[0004] The existing centrifugal concentrator enrichment mechanism is an integral conical structure. The concentrate product obtained by sorting is recovered through flushing water and analyzed as a whole. It is impossible to restore and analyze the characteristics of the concentrate obtained in a certain layer of enrichment ring in situ, which has become a bottleneck problem in the study of centrifugal gravity separation mechanism. Utility Model Content

[0005] The utility model provides a detachable enrichment cone mechanism for a centrifugal concentrator to solve the technical problem that the separation mechanism of mineral particles in the centrifugal field of a centrifugal concentrator and the affected factors are difficult to analyze and determine.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] The utility model provides a detachable enrichment cone mechanism for a centrifugal concentrator, comprising:

[0008] A detachable enrichment cone structure is composed of a bottom enrichment ring, a middle enrichment ring and a top enrichment ring. Several middle enrichment rings are spliced ​​together, and the middle enrichment rings at the upper and lower ends are respectively fitted and connected with the top enrichment ring and the bottom enrichment ring.

[0009] In the technical solution, a plurality of evenly distributed middle enrichment rings of truncated cone-shaped structures are provided between the bottom enrichment ring and the top enrichment ring, and the top surfaces and bottom surfaces of adjacent middle enrichment rings fit each other.

[0010] In the technical solution, symmetrically distributed grooves are opened on the top of the bottom enrichment ring and the middle enrichment ring. The number of the grooves is two and they are symmetrically distributed. The grooves are arc-shaped and located at the edges of the bottom enrichment ring and the middle enrichment ring.

[0011] In the technical solution, the bottoms of the top enrichment ring and the middle enrichment ring are fixedly connected to the protrusions, the number of the protrusions is the same as the grooves, and the protrusions are annular structures and are embedded and plugged into the inside of the grooves.

[0012] In this technical solution, the bottom of the top enrichment ring and the middle enrichment ring are fixedly connected to the sealing ring of the annular structure, the sealing ring is located on the inner side of the protrusion, and the sealing ring is located on the edge of the top inner wall of the middle enrichment ring.

[0013] In the technical solution, circular holes for slurry discharge are opened in the middle of the top enrichment ring and the middle enrichment ring, and enrichment cavities for heavy mineral deposition are formed between adjacent middle enrichment rings.

[0014] In the technical solution, the bottom wall of the middle enrichment ring is an inclined structure, and the side walls of the middle enrichment ring and the bottom enrichment ring are both provided with a number of evenly distributed backwash water holes.

[0015] In the technical solution, the backwash water holes are located at the edges of the bottom enrichment ring and the middle enrichment ring, and the backwash water holes are connected to the inside of the enrichment cavity.

[0016] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0017] The positive and progressive effects of the utility model are:

[0018] The above-mentioned detachable enrichment cone mechanism for centrifugal concentrator, which utilizes the detachable centrifugal enrichment cone mechanism, can realize in-situ detection and analysis of the enriched concentrate product of the centrifugal concentrator, so as to achieve the purpose of studying the centrifugal enrichment mechanism ring by ring, and effectively avoid the errors caused by the different rotation radius of the mineral particles in different enrichment rings and the different backwash water effects, so that it becomes a reality to study the sorting mechanism of the centrifugal concentrator from a microscopic perspective. The advantage of the detachable and assembled enrichment cone structure is that the structural parameters of each enrichment ring can be adjusted according to research needs, such as the number of enrichment rings, the radius of the enrichment ring, the number and distribution of backwash water holes, the height of the enrichment ring side wall, the depth of the enrichment ring, etc., so as to more comprehensively study the sorting mechanism of the centrifugal concentrator, find out the main influencing factors, and provide a solid theoretical basis and experimental data for industrial production practice. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of a half-section three-dimensional structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the internal front view structure of the utility model.

[0021] Figure 3 It is a schematic diagram of the half-section structure of the bottom enrichment ring of the utility model.

[0022] Figure 4 It is a schematic diagram of the half-section structure of the middle layer enrichment ring of the utility model.

[0023] Figure 5 It is a schematic diagram of the half-section structure of the top enrichment ring of the utility model.

[0024] Figure 6 It is a schematic diagram of the top view of the structure of the middle layer enrichment ring of the utility model.

[0025] Figure 7 It is a schematic diagram of the structure of the middle layer enrichment ring of the utility model when viewed from above.

[0026] Description of Reference Numerals

[0027] 1. Bottom layer enrichment ring, 2. Middle layer enrichment ring, 3. Top layer enrichment ring, 4. Groove, 5. Protrusion, 6. Sealing ring, 7. Enrichment cavity, 8. Round hole, 9. Backwash water hole. DETAILED DESCRIPTION

[0028] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0029] like Figure 1-7 As shown, the detachable enrichment cone mechanism for a centrifugal concentrator comprises:

[0030] A detachable enrichment cone structure is composed of a bottom enrichment ring 1, a middle enrichment ring 2 and a top enrichment ring 3. Several middle enrichment rings 2 are spliced ​​together, and the middle enrichment rings 2 located at the upper and lower ends are respectively fitted and connected with the top enrichment ring 3 and the bottom enrichment ring 1.

[0031] In the technical solution, a plurality of evenly distributed middle enrichment rings 2 of truncated cone-shaped structures are provided between the bottom enrichment ring 1 and the top enrichment ring 3, and the top and bottom surfaces of adjacent middle enrichment rings 2 fit each other.

[0032] In the present technical solution, symmetrically distributed grooves 4 are provided on the top of the bottom enrichment ring 1 and the middle enrichment ring 2. The number of the grooves 4 is two and they are symmetrically distributed. The grooves 4 are arc-shaped and are located at the edges of the bottom enrichment ring 1 and the middle enrichment ring 2.

[0033] In this technical solution, the bottoms of the top enrichment ring 3 and the middle enrichment ring 2 are fixedly connected to the protrusions 5 , the number of the protrusions 5 is the same as the grooves 4 , and the protrusions 5 are annular structures and are embedded and plugged into the inside of the grooves 4 .

[0034] In this technical solution, the bottom of the top enrichment ring 3 and the middle enrichment ring 2 are fixedly connected to the sealing ring 6 of the annular structure. The sealing ring 6 is located on the inner side of the protrusion 5 and the sealing ring 6 is located on the inner wall edge of the top of the middle enrichment ring 2.

[0035] In the technical solution, circular holes 8 for slurry discharge are provided in the middle of the top enrichment ring 3 and the middle enrichment ring 2, and enrichment cavities 7 for heavy mineral deposition are formed between adjacent middle enrichment rings 2.

[0036] In the present technical solution, the bottom wall of the middle enrichment ring 2 is an inclined structure, and the side walls of the middle enrichment ring 2 and the bottom enrichment ring 1 are both provided with a number of evenly distributed backwash water holes 9.

[0037] In the present technical solution, the backwash water holes 9 are located at the edges of the bottom enrichment ring 1 and the middle enrichment ring 2 , and the backwash water holes 9 are connected to the inside of the enrichment chamber 7 .

[0038] When the present application is used, the middle enrichment ring 2 is installed on the bottom enrichment ring 1, and the groove 4 and the protrusion 5 are matched to achieve stable positioning. At this time, the sealing ring 6 is fitted with the top inner wall of the bottom enrichment ring 1, and then the middle enrichment rings 2 with different diameters are installed in sequence, and the top enrichment ring 3 is also installed by the protrusion 5 and the groove 4. The assembled enrichment cone mechanism is placed in the recoil water jacket of the centrifugal concentrator, and the fixing device in the centrifuge is used to stabilize the limit to avoid the problem of separation when it rotates at high speed. When the ore dressing starts, the recoil water valve is opened, and the enrichment cone mechanism of the centrifugal concentrator rotates at high speed. The slurry is passed into the bottom enrichment ring 1 through the ore feeding pipe. Under the combined action of the recoil water and the centrifugal force, the heavy minerals are deposited in the enrichment chamber 7, and the light minerals are discharged from the top enrichment ring 3 with the recoil water flow to become tailings, thereby completing the ore dressing. When the enrichment is completed, the slurry is stopped from being transported, the recoil water valve is closed, and the rotation speed of the enrichment cone mechanism is gradually reduced until it stops completely. Take out the enrichment cone mechanism, split and remove each layer of enrichment ring one by one, and obtain the concentrate in each enrichment ring. The characteristic parameters such as concentrate morphology, particle size, grade, etc. are analyzed and tested to reveal the separation mechanism of centrifugal concentrator, providing theoretical guidance and support for industrial practice. After processing, operate again, and adjust the screening height and area parameters of the enrichment cone by changing the number and structural parameters of the middle layer enrichment ring 2, which can facilitate the analysis of the separation parameters of the centrifugal concentrator.

[0039] The utility model is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the utility model, but these changes and modifications are within the protection scope of the utility model.

Claims

1. A detachable conical concentrator for centrifugal concentrator, characterized in that: include: A detachable enrichment cone structure is composed of a bottom enrichment ring (1), a middle enrichment ring (2) and a top enrichment ring (3), wherein a plurality of the middle enrichment rings (2) are spliced ​​together, and the middle enrichment rings (2) at the upper and lower ends are respectively fitted and connected to the top enrichment ring (3) and the bottom enrichment ring (1).

2. The detachable enrichment cone mechanism for a centrifugal concentrator according to claim 1, characterized in that: A plurality of evenly distributed middle-layer enrichment rings (2) of truncated cone-shaped structures are arranged between the bottom-layer enrichment ring (1) and the top-layer enrichment ring (3), and the top surfaces and bottom surfaces of adjacent middle-layer enrichment rings (2) are in contact with each other.

3. The detachable enrichment cone mechanism for a centrifugal concentrator according to claim 1, characterized in that: The tops of the bottom enrichment ring (1) and the middle enrichment ring (2) are provided with symmetrically distributed grooves (4), the number of the grooves (4) is two and they are symmetrically distributed, and the grooves (4) are arc-shaped structures and are located at the edges of the bottom enrichment ring (1) and the middle enrichment ring (2).

4. The detachable enrichment cone mechanism for a centrifugal concentrator according to claim 1, characterized in that: The bottoms of the top enrichment ring (3) and the middle enrichment ring (2) are fixedly connected to the protrusions (5), the number of the protrusions (5) is the same as the number of the grooves (4), and the protrusions (5) are annular structures and are embedded and plugged into the inside of the grooves (4).

5. The detachable enrichment cone mechanism for a centrifugal concentrator according to claim 1, characterized in that: The bottoms of the top enrichment ring (3) and the middle enrichment ring (2) are fixedly connected to a sealing ring (6) of an annular structure. The sealing ring (6) is located on the inner side of the protrusion (5), and the sealing ring (6) is located on the edge of the inner wall of the top of the middle enrichment ring (2).

6. The detachable enrichment cone mechanism for a centrifugal concentrator according to claim 1, characterized in that: The top enrichment ring (3) and the middle enrichment ring (2) are both provided with circular holes (8) in the middle for discharging slurry, and an enrichment cavity (7) for heavy mineral deposition is formed between adjacent middle enrichment rings (2).

7. The detachable enrichment cone mechanism for a centrifugal concentrator according to claim 1, characterized in that: The bottom wall of the middle enrichment ring (2) is an inclined structure, and the side walls of the middle enrichment ring (2) and the bottom enrichment ring (1) are both provided with a plurality of evenly distributed backwash water holes (9).

8. The detachable enrichment cone mechanism for a centrifugal concentrator according to claim 7, characterized in that: The backwash water holes (9) are located at the edges of the bottom enrichment ring (1) and the middle enrichment ring (2), and the backwash water holes (9) are connected to the inside of the enrichment chamber (7).

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