A beneficiation and purification device for graphite

Abstract

The utility model relates to graphite production technical field, and the specific field is a kind of graphite's ore dressing purification device, to solve in the flotation, slag is easy to deposit in bottom, stirring impeller rotation cannot lift deposited slag, graphite deposited in lower portion cannot float, and the stirring shaft lower portion in ore dressing pool is connected with spiral blade, stirring shaft upper end is connected with impeller, and the inner wall of ore dressing pool between spiral blade and impeller is connected with the horizontally arranged gas injection pipe, and the gas injection pipe is provided with air hole, and the upper portion of ore dressing pool is connected with flotation mechanism, and the bottom of ore dressing pool end is connected with slag discharge mechanism along the direction of ore pulp conveying, and stirring shaft drives spiral blade to rotate, makes slag and graphite rise, and gas injection pipe is evenly out of bubble to the mixed ore that rises, and bubble and mixed ore are scattered under the agitation of impeller, and bubble is split into small bubble, adheres to the slag and graphite that is scattered, makes graphite float to liquid level, and then is salvaged by flotation mechanism, so as to avoid graphite deposition, and the flotation effect is better.

Description

Technical Field

[0001] This utility model relates to the field of graphite production technology, specifically to a graphite beneficiation and purification device. Background Technology

[0002] Graphite, as an important non-metallic mineral, is widely used in batteries, refractory materials, and graphene preparation due to its unique layered structure and excellent physicochemical properties. However, natural graphite often occurs in close association with gangue minerals such as quartz, feldspar, and mica, and its flake structure is easily damaged during crushing and grinding processes, making its beneficiation and purification quite difficult.

[0003] Existing technologies utilize flotation processes for purification. After the ore is ground into a slurry, collectors, frothers, and other reagents are added. A mechanical agitator impeller rotates to generate negative pressure, drawing in air and cutting it into bubbles. Hydrophobic mineral particles are adsorbed onto the surface of the bubbles, forming a complex that floats to the surface and forms a foam layer. A foam scraper then scrapes the foam into the concentrate tank as concentrate.

[0004] However, during flotation, slag tends to settle at the bottom, and the rotating impeller cannot lift the settled slag, causing the graphite deposited at the bottom to fail to float, resulting in poor flotation performance. Utility Model Content

[0005] In order to solve the technical problem that during flotation, slag tends to settle at the bottom and the rotating impeller cannot lift the settled slag, resulting in the graphite deposited at the bottom not being able to float and the flotation effect being poor, this utility model provides a graphite beneficiation and purification device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a graphite beneficiation and purification device, comprising: a beneficiation tank, a stirring shaft rotatably connected to the bottom wall of the beneficiation tank, a spiral blade connected to the lower part of the stirring shaft in the beneficiation tank, an impeller connected to the upper end of the stirring shaft, a horizontally arranged air injection pipe connected to the inner wall of the beneficiation tank between the spiral blade and the impeller, an air injection pipe having air holes, a flotation mechanism connected to the upper part of the beneficiation tank, and a slag discharge mechanism connected to the bottom of the end of the beneficiation tank along the slurry conveying direction.

[0007] Preferably, the air inlet of the air injection pipe is located on the lower part of the pipe wall.

[0008] Preferably, the flotation mechanism includes a bearing housing connected to the upper part of the concentrator. A scraper shaft is rotatably connected inside the bearing housing, and scraper blades are connected to the scraper shaft. When the scraper blades are at the lower part, they can be inserted into the upper part of the liquid surface. A discharge arc plate is provided in front of the scraper blades along the slurry conveying direction. The discharge arc plate is connected to the inner wall of the concentrator. The upper surface of the discharge arc plate coincides with the rotation path of the scraper blade edge. A conveyor is connected to the upper end of the concentrator behind the discharge arc plate along the slurry conveying direction.

[0009] Preferably, the slag discharge mechanism includes a horizontal slag discharge cylinder connected and communicated with the bottom of the end of the concentrator along the slurry conveying direction. The horizontal slag discharge cylinder is provided with a horizontal spiral blade, the shaft end of which is rotatably connected to the side wall of the concentrator. The horizontal slag discharge cylinder is connected to a vertical slag discharge cylinder. The upper end of the vertical slag discharge cylinder is located above the liquid surface of the concentrator. The vertical slag discharge cylinder is provided with a vertical spiral blade, the shaft end of which is rotatably connected to the bottom wall of the vertical slag discharge cylinder.

[0010] Compared with the prior art, the beneficial effects of this utility model are: The stirring shaft drives the spiral blades to rotate, causing the slag and graphite to rise. The air injection pipe evenly releases bubbles into the rising mixed ore. The bubbles and mixed ore disperse under the stirring action of the impeller, and the bubbles break into tiny bubbles that adhere to the dispersed slag and graphite, causing the graphite to float to the surface of the liquid and then be retrieved by the flotation mechanism. This avoids graphite deposition and improves the flotation effect.

[0011] By using scraper blades in conjunction with discharge arc plates, the floating graphite is scraped onto the conveyor. Compared to existing technologies where scraper blades only scrape the graphite into the fine material tank, the scraped graphite will not fall back into the liquid surface. Furthermore, multiple sets of flotation mechanisms can be set up to ensure that no flotation is missed. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic cross-sectional view of the structure of this utility model. Figure 1 ; Figure 3 This is a schematic cross-sectional view of the structure of this utility model. Figure 2 .

[0013] In the diagram: 1. Mineral processing tank; 2. Stirring shaft; 3. Spiral blade; 4. Impeller; 5. Air injection pipe; 6. Flotation mechanism; 61. Bearing seat; 62. Scraper shaft; 63. Scraper blade; 64. Discharge arc plate; 65. Conveyor; 7. Slag discharge mechanism; 71. Horizontal slag discharge cylinder; 72. Horizontal spiral blade; 73. Vertical slag discharge cylinder; 74. Vertical spiral blade. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] The rotary connection described in this device refers to the axial fixation of the bearing by mounting the bearing on the shaft, with a spring retaining ring groove provided on the shaft or shaft hole, and the rotation achieved by locking the elastic retaining ring in the retaining ring groove; the hinge connection refers to the connection method that allows movement through connecting parts such as hinges, pins, and short shafts.

[0016] The present invention will now be described in detail with reference to the accompanying drawings.

[0017] The following is in conjunction with the appendix Figure 1-3 This embodiment describes a graphite beneficiation and purification device, comprising: a beneficiation tank 1, a stirring shaft 2 rotatably connected to the bottom wall of the beneficiation tank 1, a spiral blade 3 connected to the lower part of the stirring shaft 2 inside the beneficiation tank 1, an impeller 4 connected to the upper end of the stirring shaft 2, a horizontally arranged air injection pipe 5 connected to the inner wall of the beneficiation tank 1 between the spiral blade 3 and the impeller 4, the air injection pipe 5 having air holes, a flotation mechanism 6 connected to the upper part of the beneficiation tank 1, and a slag discharge mechanism 7 connected to the bottom of the end of the beneficiation tank 1 along the slurry conveying direction.

[0018] Water, reagents, and ore are continuously injected into the beneficiation tank 1. The stirring shaft 2 is turned on, which drives the spiral blade 3 and impeller 4 to rotate. The rotation of the spiral blade 3 causes the slag and graphite to rise. The air injection pipe 5 evenly produces bubbles into the rising mixed ore. The bubbles and mixed ore disperse under the stirring action of the impeller 4. The bubbles break into tiny bubbles and adhere to the dispersed slag and graphite, causing the graphite to float to the surface of the liquid and then be retrieved by the flotation mechanism 6. This avoids graphite deposition and improves the flotation effect. The slag is discharged by the slag discharge mechanism 7.

[0019] The air inlet of air tube 5 is located on the lower part of the tube wall.

[0020] The air injection pipe 5 releases air downwards through the air hole, which can prevent slag from carrying graphite to deposit again and also prevent impurities from entering the air hole opened at the top and causing blockage.

[0021] The flotation mechanism 6 includes a bearing housing 61, which is connected to the upper part of the concentrator 1. A scraper shaft 62 is rotatably connected inside the bearing housing 61. A scraper blade 63 is connected to the scraper shaft 62. When the scraper blade 63 is in the lower part, it can be inserted into the upper part of the liquid surface. A discharge arc plate 64 is provided in front of the scraper blade 63 along the slurry conveying direction. The discharge arc plate 64 is connected to the inner wall of the concentrator 1. The upper surface of the discharge arc plate 64 coincides with the rotation path of the edge of the scraper blade 63. A conveyor 65 is connected to the upper end of the concentrator 1 behind the discharge arc plate 64 along the slurry conveying direction.

[0022] The power is transmitted through the scraper shaft 62 to drive the scraper blades 63 to rotate. Since there is a discharge arc plate 64 in front of the scraper blades 63 along the slurry conveying direction, the scraper blades 63 transport the floating and flowing upper layer of graphite to the discharge arc plate 64. The scraper blades 63 and the discharge arc plate 64 cooperate to transport the floating graphite. The axis of the scraper shaft 62 is located above the discharge arc plate 64. When the scraper blades 63 are located at the upper end of the discharge arc plate 64, they tilt downwards so that the graphite falls onto the conveyor 65. Compared with the existing technology where the scraper blades only scrape the graphite into the concentrate tank, the scraped graphite will not fall back into the liquid surface. Moreover, multiple sets of flotation mechanisms 6 can be set to ensure that no flotation is missed.

[0023] The slag discharge mechanism 7 includes a horizontal slag discharge cylinder 71, which is connected to and communicates with the bottom of the end of the concentrator 1 along the slurry conveying direction. The horizontal slag discharge cylinder 71 is provided with a horizontal spiral blade 72, and the shaft end of the horizontal spiral blade 72 is rotatably connected to the side wall of the concentrator 1. The horizontal slag discharge cylinder 71 is connected to a vertical slag discharge cylinder 73, and the upper end of the vertical slag discharge cylinder 73 is located above the liquid surface of the concentrator 1. The vertical slag discharge cylinder 73 is provided with a vertical spiral blade 74, and the shaft end of the vertical spiral blade 74 is rotatably connected to the bottom wall of the vertical slag discharge cylinder 73.

[0024] The slag is deposited at the bottom of the end of the concentrator 1 along the direction of slurry transport. The horizontal spiral blade 72 driven by the power conveyor transports the slag through the horizontal slag discharge cylinder 71 into the vertical slag discharge cylinder 73. The power conveys the slag through the vertical spiral blade 74 to the upper end of the vertical slag discharge cylinder 73. Since the upper end of the vertical slag discharge cylinder 73 is located above the liquid surface of the concentrator 1, the slag is discharged after draining, thus completing the slag discharge.

[0025] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A graphite beneficiation and purification apparatus, characterized in that: include: A mineral processing pool (1) is rotatably connected to the bottom wall of the mineral processing pool (1). A spiral blade (3) is connected to the lower part of the agitator (2) in the mineral processing pool (1). An impeller (4) is connected to the upper end of the agitator (2). A horizontally arranged air injection pipe (5) is connected to the inner wall of the mineral processing pool (1) between the spiral blade (3) and the impeller (4). An air hole is opened on the air injection pipe (5). A flotation mechanism (6) is connected to the upper part of the mineral processing pool (1). A slag discharge mechanism (7) is connected to the bottom of the end of the mineral processing pool (1) along the direction of slurry conveying.

2. The graphite beneficiation and purification apparatus according to claim 1, characterized in that: The air inlet of the air injection pipe (5) is located on the lower part of the pipe wall.

3. The graphite beneficiation and purification apparatus according to claim 1, characterized in that: The flotation mechanism (6) includes a bearing seat (61), which is connected to the upper part of the concentrator (1). A scraper shaft (62) is rotatably connected inside the bearing seat (61). A scraper blade (63) is connected to the scraper shaft (62). When the scraper blade (63) is located at the lower part, it can be inserted into the upper part of the liquid surface. A discharge arc plate (64) is provided in front of the scraper blade (63) along the slurry conveying direction. The discharge arc plate (64) is connected to the inner wall of the concentrator (1). The upper surface of the discharge arc plate (64) coincides with the rotation path of the edge of the scraper blade (63). A conveyor (65) is connected to the upper end of the concentrator (1) behind the discharge arc plate (64) along the slurry conveying direction.

4. The graphite beneficiation and purification apparatus according to claim 1, characterized in that: The slag discharge mechanism (7) includes a horizontal slag discharge cylinder (71). The bottom of the end of the ore dressing tank (1) along the slurry conveying direction is connected to and communicated with the horizontal slag discharge cylinder (71). The horizontal slag discharge cylinder (71) is provided with a horizontal spiral blade (72). The shaft end of the horizontal spiral blade (72) is rotatably connected to the side wall of the ore dressing tank (1). The horizontal slag discharge cylinder (71) is connected to a vertical slag discharge cylinder (73). The upper end of the vertical slag discharge cylinder (73) is located above the liquid surface of the ore dressing tank (1). The vertical slag discharge cylinder (73) is provided with a vertical spiral blade (74). The shaft end of the vertical spiral blade (74) is rotatably connected to the bottom wall of the vertical slag discharge cylinder (73).

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