A device for recycling iron concentrate

Abstract

The utility model belongs to the field of mining recovery, relates to a kind of recovery iron concentrate device, including the sedimentation tank, buffer pool and recovery pool that are sequentially arranged;The inlet of the sedimentation tank is connected with the concentrate cleaned after washing wheel machine;The upper portion of the side of the sedimentation tank is provided with sedimentation tank overflow outlet;The inlet of the buffer pool is communicated with the sedimentation tank overflow outlet;The outlet of the buffer pool is arranged at the bottom of the side of the buffer pool;The outlet position of the buffer pool is equipped with buffer pool ore discharge gate;The side of the buffer pool is provided with buffer pool overflow outlet on the upper portion of the buffer pool ore discharge gate;The inlet of the recovery pool is communicated with the buffer pool overflow outlet;The upper portion of the side of the recovery pool is provided with recovery pool overflow outlet;Meanwhile, conveying pump is arranged in the recovery pool, and the conveying pump is communicated to the ore bin of filter plant concentration magnetic separator.The device of the application is simple to operate, not only reduces the working difficulty and intensity of concentrate recovery, but also reduces the cost of beneficiation operation.

Description

Technical Field

[0001] This utility model belongs to the field of mining recycling and relates to a device for recycling iron concentrate. Background Technology

[0002] Currently, most domestic mines' concentrators, after producing iron concentrate, use grab buckets or loaders to load the concentrate into trucks for shipment. During the truck's journey through the concentrate shipping yard and at the washing machine, concentrate spillage occurs. Most mines address this spilled concentrate by collecting it in one location, allowing it to settle, then cleaning out the settled concentrate, and finally returning the settled minerals to the concentrator process for further recycling.

[0003] However, the above process has the following problems: the iron concentrate after sedimentation is affected by environmental pollution and its quality is reduced, so it cannot be directly poured into the concentrate silo; if the iron concentrate after sedimentation is transported to the front end of the mineral processing production process (ball mill feed) for reprocessing and recovery, the manual cleaning intensity is high and the mineral processing operation cost is increased. Utility Model Content

[0004] This application provides a device for recycling iron concentrate, which is easy to operate and not only reduces the difficulty and intensity of concentrate recycling, but also reduces the cost of mineral processing.

[0005] To achieve the above technical objectives, this application provides a device for recycling iron concentrate, comprising a sedimentation tank, a buffer tank, and a recovery tank arranged in sequence;

[0006] The inlet of the sedimentation tank is connected to the concentrate cleaned by the wheel washing machine; the outlet of the sedimentation tank is located at the bottom of the side of the sedimentation tank and is connected to the buffer tank; a sedimentation tank discharge gate is provided at the outlet of the sedimentation tank; and an overflow outlet is provided at the upper part of the side of the sedimentation tank.

[0007] The inlet of the buffer pool is connected to the overflow outlet of the sedimentation tank; the outlet of the buffer pool is located at the bottom of the side of the buffer pool; the outlet of the buffer pool is connected to the recovery tank; a buffer pool discharge gate is provided at the outlet of the buffer pool; and an overflow outlet of the buffer pool is provided on the side of the buffer pool above the buffer pool discharge gate.

[0008] The inlet of the recycling pool is connected to the overflow outlet of the buffer pool; the overflow outlet of the recycling pool is provided on the upper part of the side of the recycling pool; the overflow outlet of the recycling pool flows directly to the mineral processing thickening pool through the ditch for water reuse; at the same time, a conveying pump is arranged in the recycling pool, and the conveying pump is connected to the feed box of the thickening magnetic separator in the filtration plant.

[0009] As an improved technical solution of this application, the sedimentation tank, the buffer tank and the recycling tank are placed side by side in sequence.

[0010] As an improved technical solution of this application, the heights of the overflow outlet of the sedimentation tank, the overflow outlet of the buffer tank, and the overflow outlet of the recovery tank decrease sequentially.

[0011] Beneficial effects

[0012] 1. The iron concentrate recycling unit fully recovers the concentrate spilled in the concentrate yard and the concentrate after the trucks are cleaned by combining sedimentation and overflow.

[0013] 2. The overall operation of the device is simple, reducing the difficulty and intensity of concentrate recovery work;

[0014] 3. The concentrate recovered by the equipment is directly fed into the thickening magnetic separator in the filtration plant, which greatly reduces the recovery cost. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of an iron concentrate recycling device according to this application is shown;

[0016] Figure 2 A schematic diagram of the device structure of a reclaimed iron concentrate apparatus of this application when the conveying pump is not in operation;

[0017] Figure 3 A schematic diagram of the structure of the conveying pump in a reclaimed iron concentrate device according to this application is shown in operation.

[0018] In the diagram, 1 is the sedimentation tank; 2 is the buffer tank; 3 is the recovery tank; 4 is the transfer pump; 5 is the outlet of the sedimentation tank; 6 is the outlet of the buffer tank; 7 is the overflow outlet of the recovery tank; 8 is the overflow outlet of the sedimentation tank; and 9 is the overflow outlet of the buffer tank. Detailed Implementation

[0019] like Figure 1 As shown, an iron concentrate recycling device includes a sedimentation tank 1, a buffer tank 2, and a recycling tank 3 arranged in sequence. The heights of the overflow outlet 8 of the sedimentation tank, the overflow outlet 9 of the buffer tank, and the overflow outlet 7 of the recycling tank decrease sequentially to ensure that water can flow by gravity.

[0020] The inlet of the sedimentation tank 1 is connected to the concentrate cleaned by the wheel washing machine, and the sedimentation tank 1 settles the concentrate. The outlet 5 of the sedimentation tank is located at the bottom of the side of the sedimentation tank 1, and the outlet 5 is connected to the buffer tank 2. A sedimentation tank discharge gate is provided at the outlet 5 of the sedimentation tank; when the sedimentation tank 1 is working, the sedimentation tank discharge gate closes the outlet 5 of the sedimentation tank; when the sedimentation tank 1 discharges the settled concentrate, the sedimentation tank discharge gate will open, and the concentrate inside the sedimentation tank 1 will enter the buffer tank 2. An overflow outlet 8 is provided at the upper part of the side of the sedimentation tank 1, and the sedimentation tank overflow outlet 8 mainly discharges the insufficiently settled concentrate and water from the sedimentation tank 1 to the buffer tank 2.

[0021] The inlet of the buffer tank 2 is connected to the overflow outlet 8 of the sedimentation tank, introducing the overflow water from the sedimentation tank 1; the outlet 6 of the buffer tank is located at the bottom of the side of the buffer tank 2; the outlet 6 of the buffer tank is connected to the recovery tank 3; a buffer tank discharge gate is provided at the outlet 6 of the buffer tank; an overflow outlet 9 is provided above the buffer tank discharge gate of the buffer tank 2. When the buffer tank 2 is working, the buffer tank discharge gate closes the outlet 6 of the buffer tank, and water flows out from the overflow outlet 9 above the buffer tank discharge gate to the recovery tank 3; when the buffer tank 2 discharges the settled concentrate, the buffer tank discharge gate will open, and the concentrate of the buffer tank 2 flows from the bottom of the buffer tank discharge gate to the recovery tank 3.

[0022] The overflow outlet 9 of the buffer pool is located above the ore discharge gate of the buffer pool. The purpose is to allow the concentrate that needs to be settled to be settled more fully in the settling pool 1 and the buffer pool 2.

[0023] The inlet of the recovery pool 3 is connected to the overflow outlet 9 of the buffer pool, introducing the overflow water of the buffer pool 2; the upper part of the side of the recovery pool 3 is provided with the recovery pool overflow outlet 7; at the same time, the recovery pool 3 is arranged with a conveying pump 4, which is connected to the feed box of the concentration magnetic separator in the filtration plant.

[0024] The sedimentation tank 1 overflows directly into the buffer tank 2 through the sedimentation tank overflow port 8. On the other side of the sedimentation tank overflow port 8, the sediment can also flow from the bottom of the sedimentation tank 1 into the buffer tank 2 through the raising of the sedimentation tank discharge gate. The sedimentation tank 1 and the buffer tank 2 share a wall, and the buffer tank 2 and the recovery tank 3 share a wall. The sedimentation tank 2 overflows into the recovery tank 3 through the upper edge of the buffer tank discharge gate, and can also flow from the bottom of the buffer tank 2 into the recovery tank 3 through the raising of the buffer tank discharge gate.

[0025] The device has two main operating states: concentrate recovery and concentrate conveying. In concentrate recovery mode, the discharge gates of the sedimentation tank and buffer tank are closed, and the conveying pump 4 stops. The concentrate, after being cleaned by the washing machine, sequentially enters sedimentation tank 1, buffer tank 2, and recovery tank 3. When a large amount of concentrate is found in the water overflowing from buffer tank 2 into recovery tank 3, the device needs to enter concentrate conveying mode. In concentrate conveying mode, the discharge gates of the buffer tank and sedimentation tank are opened sequentially, allowing the settled concentrate to flow quickly to recovery tank 3, where it is cleaned and recovered by the conveying pump 4.

[0026] Example 1

[0027] The iron concentrate recycling unit mainly includes a sedimentation tank 1, a buffer tank 2, a recovery tank 3, a sedimentation tank discharge gate, a buffer tank discharge gate, a conveying pump, and a conveying pipeline.

[0028] 1. The wheel washing machine is located downstream of the concentrate yard, so that the concentrate spilled from the concentrate yard can flow by gravity to the wheel washing machine after being washed.

[0029] 2. The iron concentrate recycling unit is located downstream of the wheel washing machine, which facilitates the collection of concentrate from the concentrate yard and the concentrate cleaned by the wheel washing machine.

[0030] III. The concentrate cleaned by the concentrate truck and the wheel washing machine flows sequentially into sedimentation tank 1, buffer tank 2 and recovery tank 3;

[0031] IV. The sedimentation tank 1 overflows into the buffer tank 2, the buffer tank 2 overflows into the recovery tank 3, and the recovery tank 3 uses the transfer pump 4 to guide the concentrate to be recovered to the feed box of the concentration magnetic separator in the filtration plant.

[0032] 5. Sedimentation tank 1 and buffer tank 2 are respectively equipped with sedimentation tank discharge gates and buffer tank discharge gates, which are longitudinally positioned on one side. The main purpose is to efficiently and quickly allow the settled concentrate to flow into recovery tank 3. When the transfer pump 4 is turned on, the sedimentation tank discharge gates and buffer tank discharge gates should be opened. When the concentrate is stored in sedimentation tank 1 and buffer tank 2, the sedimentation tank discharge gates and buffer tank discharge gates should be closed.

[0033] 6. The outlet pipe of the conveying pump 4 is connected to the feed box of the thickening magnetic separator in the filtration plant. After separation by the thickening magnetic separator, the grade of the concentrate is improved and the slurry concentration is increased. After dewatering in the filter, the concentrate is formed and enters the concentrate silo.

[0034] The main function of this high-efficiency iron concentrate recycling unit during the concentrate shipping process is to collect and settle the concentrate; after the shipment is completed, its main function is to recover and transport the settled concentrate to the concentrate storage facility.

[0035] Detailed operating procedures:

[0036] During the shipping process:

[0037] The concentrate that needs to be recycled flows sequentially into sedimentation tank 1, buffer tank 2, and recovery tank 3. During this time, the discharge gates of sedimentation tank 1 and buffer tank 2 must remain closed. The purpose of this operation is to allow the concentrate to settle effectively in sedimentation tank 1, buffer tank 2, and recovery tank 3. Excess water is discharged from the overflow port 7 of the recovery tank, and the transfer pump 4 is stopped.

[0038] After shipment:

[0039] Turn on the conveying pump 4, open the discharge gates of the buffer tank and the sedimentation tank, and use water pipes to flush all the settled concentrate in sedimentation tank 1 and buffer tank 2 into recovery tank 3. The concentrate is then transported by the conveying pump 4 and conveying pipeline in recovery tank 3 to the feed box of the thickening magnetic separator in the filtration plant. After the grade and concentration are improved by the thickening magnetic separator, the concentrate enters the filter for dewatering, forming a product that enters the concentrate silo. The on-site sampling and testing indicators are shown in Table 1 below.

[0040] Table 1

[0041]

[0042]

[0043] The required specifications for this iron concentrate product are: Tfe grade ≥ 65% and iron concentrate -200 mesh content ≥ 70%. After passing through the iron concentrate recycling unit and entering the concentration magnetic separator, the iron concentrate product meets the requirements.

Claims

1. A device for recycling iron concentrate, characterized in that, It includes a sedimentation tank, a buffer tank, and a recovery tank arranged in sequence; The inlet of the sedimentation tank is connected to the concentrate cleaned by the wheel washing machine; the outlet of the sedimentation tank is located at the bottom of the side of the sedimentation tank and is connected to the buffer tank; a sedimentation tank discharge gate is provided at the outlet of the sedimentation tank; and an overflow outlet is provided at the upper part of the side of the sedimentation tank. The inlet of the buffer pool is connected to the overflow outlet of the sedimentation tank; the outlet of the buffer pool is located at the bottom of the side of the buffer pool; the outlet of the buffer pool is connected to the recovery tank; a buffer pool discharge gate is provided at the outlet of the buffer pool; and an overflow outlet of the buffer pool is provided on the side of the buffer pool above the buffer pool discharge gate. The inlet of the recycling pool is connected to the overflow outlet of the buffer pool; the overflow outlet of the recycling pool is provided on the upper part of the side of the recycling pool; the overflow outlet of the recycling pool flows directly to the mineral processing thickening pool through the ditch for water reuse; at the same time, a conveying pump is arranged in the recycling pool, and the conveying pump is connected to the feed box of the thickening magnetic separator in the filtration plant.

2. The iron concentrate recycling device according to claim 1, characterized in that, The sedimentation tank, the buffer tank, and the recycling tank are placed side by side in sequence.

3. The iron concentrate recycling device according to claim 1, characterized in that, The heights of the overflow outlets of the sedimentation tank, buffer tank, and recovery tank decrease sequentially.

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