Tailings dewatering and recovery equipment for multi-element recovery via gravity flotation

Abstract

This utility model provides a tailings slag dewatering and recovery device for multi-element recovery via gravity flotation, including a base. A centrifugal assembly for dewatering the tailings slurry is mounted on top of the base. The centrifugal assembly includes a set of supports fixedly connected to the upper surface of the base. An outer cylinder is fixedly connected to the top of the supports. A motor is housed inside the outer cylinder. A set of connecting plates is fixedly connected to the outer surface of the motor. A centrifugal filter is fixedly connected to the output end of the motor. Through the cooperation of the centrifugal assembly and the drying assembly, the centrifugal assembly applies a large centrifugal force to the tailings slurry. Under this centrifugal force, the water in the tailings slurry is rapidly separated, completing the initial dewatering. The drying assembly then rakes and blows the tailings slurry, allowing the airflow to fully penetrate the dispersed tailings slurry and further remove residual water, achieving deep dewatering treatment of the tailings slurry. This effectively reduces the water content of the tailings slurry and significantly lowers transportation costs.

Description

Technical Field

[0001] This utility model relates to the field of tailings slag recycling technology, and in particular to tailings slag dewatering and recycling equipment for multi-element recovery by gravity flotation. Background Technology

[0002] Tailings are solid wastes that remain after mineral resources have undergone processing such as mining, crushing, grinding, and sorting, and cannot meet the recycling standards under current economic and technological conditions. They are one of the largest by-products generated in the mining production process. Their generation occurs throughout the entire mineral processing process. Essentially, they are a mixture left over after the mineral processing technology enriches and separates the target valuable minerals, mainly consisting of gangue minerals mixed with a small amount of unrecovered valuable components.

[0003] Traditional gravity flotation production lines only perform simple hydraulic classification in the tailings treatment stage. The operating characteristics of gravity flotation process dictate that tailings slag must be discharged in a high moisture content state without deep dewatering. The moisture content is relatively high, and some tailings containing clay minerals have even higher moisture content due to the water-retaining properties of clay particles. This high moisture content state significantly increases the transportation cost of tailings. To address this, we provide tailings slag dewatering and recovery equipment for multi-element recovery in gravity flotation. Utility Model Content

[0004] This invention provides a tailings slag dewatering and recovery equipment for gravity flotation and multi-element recovery. It can deeply dewater the tailings slurry, effectively reduce the water content in the tailings slurry, and significantly reduce the transportation cost of tailings.

[0005] The purpose and effectiveness of this utility model of tailings slag dewatering and recovery equipment for multi-element recovery by gravity flotation are achieved by the following specific technical means: The tailings slag dewatering and recovery equipment for multi-element recovery by gravity flotation includes a base. A centrifugal assembly for dewatering tailings slurry is arranged above the base. The centrifugal assembly includes a set of supports fixedly connected to the upper surface of the base. An outer cylinder is fixedly connected to the top of the set of supports. A motor is arranged inside the outer cylinder. A set of connecting plates is fixedly connected to the outer surface of the motor. The other end of each connecting plate is connected to the inner wall of the outer cylinder. A centrifugal filter is fixedly connected to the output end of the motor. A set of drainage holes in a circumferential array are opened on the inner wall of the centrifugal filter. A discharge hole is opened at the bottom of the centrifugal filter. An air drying assembly for further dewatering the tailings slurry after centrifugal dewatering is arranged above the base.

[0006] Preferably, the centrifugal assembly further includes two sets of locking blocks fixedly connected to the outer surface of the centrifugal filter barrel. The outer surface of each set of locking blocks is slidably connected to a locking groove, and the outer surface of each locking groove is connected to the inner wall of the outer cylinder.

[0007] Preferably, a motor is installed on the bottom surface of the centrifugal filter barrel, and the output end of the motor extends into the interior of the centrifugal filter barrel and is fixedly connected to a scraper, the outer surface of which is in contact with the inner wall of the centrifugal filter barrel.

[0008] Preferably, the air-drying assembly includes a frame fixedly connected to the upper surface of the base, and a conveyor belt is installed inside the frame.

[0009] Preferably, a set of fixed frames are fixedly connected to the inner wall of the frame, and a fan is installed on the inner top wall of each fixed frame.

[0010] Preferably, the inner wall of the frame is fixedly connected to two sets of fixing plates, and the bottom surface of each set of fixing plates is fixedly connected to a set of rake plates.

[0011] Preferably, a guide barrel is fixedly connected to the upper surface of the base, the inlet of the guide barrel is located below the outlet, and the outlet of the guide barrel is located above the conveyor belt. Beneficial effects

[0012] 1. By combining the centrifugal and air-drying components, the centrifugal component can apply a large centrifugal force to the tailings slurry. Under the action of centrifugal force, the water in the tailings slurry can be quickly separated, completing the initial dewatering. Then, the air-drying component rakes and blows the tailings slurry, and the airflow fully penetrates the dispersed tailings slurry to further remove residual water, achieving deep dewatering treatment of the tailings slurry, effectively reducing the water content of the tailings slurry and significantly reducing transportation costs.

[0013] 2. The scraper is used to scrape out the tailings slurry remaining in the centrifugal filter barrel, which prevents the tailings slurry from remaining on the inner wall of the centrifugal filter barrel under centrifugal action, ensuring the normal operation of subsequent work. The rake plate can rake and separate the tailings slurry after centrifugal dewatering, dispersing it into a finer material layer, increasing the contact area between the tailings slurry and the air drying airflow, and effectively improving the drying efficiency of the tailings slurry. Attached Figure Description

[0014] Figure 1 is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 is a three-dimensional structural diagram of the centrifugal assembly of this utility model.

[0016] Figure 3 is a three-dimensional structural schematic diagram of the cross-section of the centrifugal assembly of this utility model.

[0017] Figure 4 is a three-dimensional structural schematic diagram of the cross-section of the air-drying component of this utility model.

[0018] In Figure 1-4, the correspondence between component names and drawing numbers is as follows: 1. Base; 2. Centrifugal assembly; 201. Support; 202. Outer cylinder; 203. Motor; 204. Connecting plate; 205. Centrifugal filter barrel; 206. Locking block; 207. Locking groove; 208. Discharge hole; 209. Motor; 210. Scraper; 211. Drain hole; 3. Drying assembly; 301. Frame; 302. Conveyor belt; 303. Fixing frame; 304. Fan; 305. Fixing plate; 306. Rake plate; 4. Guide bucket. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] As shown in Figures 1, 2, and 3: A tailings slag dewatering and recovery device for gravity flotation and multi-element recovery includes a base 1. A centrifugal assembly 2 for dewatering tailings slurry is mounted above the base 1. The centrifugal assembly 2 includes a set of supports 201 fixedly connected to the upper surface of the base 1. An outer cylinder 202 is fixedly connected to the top of the set of supports 201. A motor 203 is installed inside the outer cylinder 202. A set of connecting plates 204 are fixedly connected to the outer surface of the motor 203. The other end of each connecting plate 204 is connected to the inner wall of the outer cylinder 202. The connecting plates 204 provide stable support for the motor 203, ensuring its stable operation. A centrifugal filter barrel 205 is fixedly connected to the output end of the motor 203. A set of drainage holes 211 arranged in a circular array are opened on the inner wall of the centrifugal filter barrel 205. A discharge hole 208 is opened at the bottom of the centrifugal filter barrel 205. The motor 203 is controlled to operate. This will cause the centrifugal filter 205 to rotate at high speed. The tailings slurry inside the centrifugal filter 205 will rotate synchronously and generate centrifugal force. The water in the tailings slurry will be discharged from the drain hole 211, thus completing the initial dewatering of the tailings slurry and effectively reducing the water content of the tailings slurry.

[0021] As shown in Figures 1 and 3, the centrifugal assembly 2 also includes two sets of locking blocks 206 fixedly connected to the outer surface of the centrifugal filter barrel 205. The outer surface of each set of locking blocks 206 is slidably connected to a slot 207. The outer surface of each slot 207 is connected to the inner wall of the outer cylinder 202. Through the cooperation of the slots 207 and the locking blocks 206, the centrifugal filter barrel 205 and the outer cylinder 202 can be stably slidably connected, which improves the stability of the centrifugal filter barrel 205 when dewatering tailings slurry, avoids the displacement and collision of the centrifugal filter barrel 205 when rotating at high speed, and ensures the normal operation of the dewatering work.

[0022] As shown in Figures 1 and 3: A motor 209 is installed on the bottom surface of the centrifugal filter 205. The output end of the motor 209 extends into the centrifugal filter 205 and is fixedly connected to a scraper 210. The outer surface of the scraper 210 contacts the inner wall of the centrifugal filter 205. After centrifugation and dewatering, the discharge hole 208 is opened and the motor 209 is controlled to work. The motor 209 will drive the scraper 210 to rotate. The scraper 210 scrapes off the tailings slurry adhering to the inner wall of the centrifugal filter 205. The tailings slurry in the centrifugal filter 205 can be discharged through the discharge hole 208, avoiding the tailings slurry remaining on the inner wall of the centrifugal filter 205 under centrifugation, thus ensuring the normal operation of subsequent work.

[0023] As shown in Figures 1 and 4: A drying assembly 3 for further dewatering the tailings slurry after centrifugal dewatering is provided above the base 1. The drying assembly 3 includes a frame 301 fixedly connected to the upper surface of the base 1. A conveyor belt 302 is installed inside the frame 301. A guide bucket 4 is fixedly connected to the upper surface of the base 1. The inlet of the guide bucket 4 is located below the outlet 208, and the outlet of the guide bucket 4 is located above the conveyor belt 302. The tailings slurry discharged through the outlet 208 can fall into the guide bucket 4. The guide bucket 4 can accurately guide the tailings slurry onto the conveyor belt 302, ensuring the normal operation of subsequent drying work.

[0024] As shown in Figures 1 to 4: Two sets of fixing plates 305 are fixedly connected to the inner wall of the frame 301. A set of rake plates 306 are fixedly connected to the bottom surface of each set of fixing plates 305. A set of fixing frames 303 are fixedly connected to the inner wall of the frame 301. A fan 304 is installed on the inner top wall of each fixing frame 303. When the conveyor belt 302 transports tailings slurry, the rake plates 306 can rake and separate the tailings slurry on the conveyor belt 302, dispersing it into a finer material layer. The fan 304 can make the airflow fully penetrate the dispersed tailings slurry. The airflow fully penetrates the dispersed tailings slurry, effectively accelerating the drying efficiency of residual moisture on the surface of the tailings slurry, further removing residual moisture, realizing deep dewatering treatment of the tailings slurry, effectively reducing the water content of the tailings slurry, and significantly reducing transportation costs.

[0025] Working principle: When tailings slurry needs to be dewatered, the operator puts the tailings slurry into the centrifugal filter 205, and then controls the motor 203 to work. The motor 203 will drive the centrifugal filter 205 to rotate at high speed for initial centrifugal dewatering. After centrifugal dewatering is completed, the discharge hole 208 is opened and the motor 209 is controlled to work. The motor 209 will drive the scraper 210 to rotate and scrape off the tailings slurry adhering to the inner wall of the centrifugal filter 205. The tailings slurry will fall into the guide bucket 4 and slide onto the conveyor belt 302. The conveyor belt 302 and the fan 304 are started. As the conveyor belt 302 transports the tailings slurry to the right, the rake plate 306 can rake and separate the centrifugally dewatered tailings slurry. At the same time, the airflow of the fan 304 fully penetrates the dispersed tailings slurry, accelerates the drying efficiency of residual water on the surface of the tailings slurry, realizes deep dewatering treatment of tailings slurry, effectively reduces the water content of tailings slurry, and significantly reduces transportation costs.

Claims

1. A tailings slag dewatering and recovery device for gravity flotation and multi-element recovery, comprising a base (1), characterized in that: A centrifugal assembly (2) for dewatering tailings slurry is provided above the base (1). The centrifugal assembly (2) includes a set of supports (201) fixedly connected to the upper surface of the base (1). The top of the set of supports (201) is fixedly connected to an outer cylinder (202). A motor (203) is provided inside the outer cylinder (202). A set of connecting plates (204) is fixedly connected to the outer surface of the motor (203). The other end of each connecting plate (204) is connected to the inner wall of the outer cylinder (202). A centrifugal filter barrel (205) is fixedly connected to the output end of the motor (203). A set of drainage holes (211) in a circumferential array are opened on the inner wall of the centrifugal filter barrel (205). A discharge hole (208) is opened at the bottom of the centrifugal filter barrel (205). A drying assembly (3) for further dewatering the tailings slurry after centrifugal dewatering is provided above the base (1).

2. The tailings dewatering and recovery equipment for gravity flotation multi-element recovery according to claim 1, characterized in that: The centrifugal assembly (2) also includes two sets of locking blocks (206) fixedly connected to the outer surface of the centrifugal filter barrel (205). The outer surface of each set of locking blocks (206) is slidably connected to a locking groove (207), and the outer surface of each locking groove (207) is connected to the inner wall of the outer cylinder (202).

3. The tailings slag dewatering and recovery equipment for gravity flotation multi-element recovery according to claim 1, characterized in that: A motor (209) is installed on the bottom surface of the centrifugal filter barrel (205). The output end of the motor (209) extends into the centrifugal filter barrel (205) and is fixedly connected to a scraper (210). The outer surface of the scraper (210) is in contact with the inner wall of the centrifugal filter barrel (205).

4. The tailings slag dewatering and recovery equipment for gravity flotation multi-element recovery according to claim 1, characterized in that: The air-drying assembly (3) includes a frame (301) fixedly connected to the upper surface of the base (1), and a conveyor belt (302) is installed inside the frame (301).

5. The tailings slag dewatering and recovery equipment for gravity flotation multi-element recovery according to claim 4, characterized in that: A set of fixed frames (303) are fixedly connected to the inner wall of the frame (301), and a fan (304) is installed on the inner top wall of each fixed frame (303).

6. The tailings slag dewatering and recovery equipment for gravity flotation multi-element recovery according to claim 4, characterized in that: The inner wall of the frame (301) is fixedly connected with two sets of fixing plates (305), and the bottom surface of each set of fixing plates (305) is fixedly connected with a set of rake plates (306).

7. The tailings slag dewatering and recovery equipment for gravity flotation multi-element recovery according to claim 1, characterized in that: The upper surface of the base (1) is fixedly connected to a guide barrel (4), the inlet of the guide barrel (4) is located below the outlet hole (208), and the outlet of the guide barrel (4) is located above the conveyor belt (302).

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