Hydrocyclone group feeding device with pre-grading function

Abstract

The utility model relates to the technical field of ore feeding devices, in particular to a hydrocyclone group ore feeding device with a pre-grading function, which is provided with a conveying table, a conveying cavity is arranged in the conveying table, a feed port, a coarse particle discharge port and a fine particle discharge port which are communicated with the conveying cavity are respectively arranged on the conveying table, a filter screen is mounted on the fine particle discharge port, and the fine particle discharge port is communicated with the conveying cavity. A conveying shaft and a conveying spiral blade are arranged in the conveying cavity, one end of the conveying shaft is rotationally connected with the conveying table, the other end of the conveying shaft penetrates out of the conveying table to be connected with an output shaft of a conveying motor, the outer wall of the conveying shaft in the conveying cavity is sleeved with the conveying spiral blade, and the rotating conveying direction of the conveying spiral blade faces the particle discharging port. The device has the advantages of simple structure, pre-classification, blockage prevention, good separation effect and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ore feeder, specifically to a hydrocyclone group ore feeder with pre-classification function. BACKGROUND

[0002] It is known that the hydrocyclone is a kind of equipment for solid-liquid separation using centrifugal force, and is widely used in mining, chemical industry and environmental protection fields.The working principle is mainly that the rotation movement is generated after high-pressure fluid enters the hydrocyclone, and under the action of centrifugal force, particles of different densities and particle sizes are separated, coarse particles settle at the bottom, and fine particles rise with liquid flow and are discharged.The hydrocyclone is composed of an upper hollow cylinder and a lower inverted cone connected with the cylinder, and also includes a feeding pipe, an overflow pipe and a underflow port.The ore pulp enters the hydrocyclone along the tangent direction at a certain pressure and flow rate through the feeding pipe, generates rotation movement inside, forms centrifugal force, so that the heavier particles are thrown to the wall and sink to the bottom along the wall, and are discharged from the underflow port;the lighter particles rise with the liquid and are discharged from the overflow pipe.The hydrocyclone is mainly used for classification, concentration and dewatering of ore pulp in the mining industry.It can effectively improve the mineral recovery rate, reduce production cost and contribute to environmental protection.In the beneficiation process, the hydrocyclone can be used as an important part of grinding classification, tailings dry discharge and metal recovery process.

[0003] When the hydrocyclone is used for screening ore, it needs to be quantitatively transported from the feeding port to the inside of the hydrocyclone according to the flow rate of the cyclone separator, to avoid internal blockage caused by direct transportation, or to cause problems such as incomplete separation of ore by internal cyclone. SUMMARY

[0004] The utility model discloses a hydrocyclone group ore feeder with pre-classification function, which has the advantages of simple structure, pre-classification, no blockage and good separation effect.

[0005] The utility model discloses a hydrocyclone group ore feeder with pre-classification function, which has the advantages of simple structure, pre-classification, no blockage and good separation effect.

[0006] A hydrocyclone group ore feeder with pre-classification function is provided, which comprises a conveying table, a conveying cavity arranged in the conveying table, an inlet, a coarse particle outlet and a fine particle outlet arranged on the conveying table and communicated with the conveying cavity, a filter screen arranged on the fine particle outlet, a conveying shaft and a conveying spiral blade arranged in the conveying cavity, one end of the conveying shaft being rotatably connected with the conveying table, the other end of the conveying shaft extending out of the conveying table and being connected with the output shaft of a conveying motor, the conveying spiral blade being sleeved on the outer wall of the conveying shaft in the conveying cavity, and the rotation direction of the conveying spiral blade being towards the coarse particle outlet.

[0007] The fine particle discharge port is connected with the material conveying pipe, and the material conveying pipe is connected with the feed pipe of the cyclone.

[0008] The utility model discloses a conveying cavity is equipped with the partition plate respectively in both end portions of conveying shaft, and the partition plate is fixed in the conveying cavity, and the both ends of conveying shaft respectively pass through the through hole on the partition plate and are connected with the conveying table, and the conveying spiral blade is connected on the conveying shaft between the partition plate, and the parts connected between the conveying shaft and the conveying table are separated through the partition plate, guaranteeing stable operation.

[0009] The bottom of the conveying table is equipped with a discharge port, and the filter screen is installed at the discharge port position, and the lower side of the filter screen is connected with the first separation plate, one end of the filter screen is fixedly connected with the inner wall of the conveying table, the other end of the filter screen is connected with the second separation plate, the two sides of the first separation plate and the second separation plate are fixedly connected with the protective plate respectively, the one end of the protective plate, the first separation plate and the conveying table form the fine particle discharge port, the other end of the protective plate, the second separation plate and the conveying table form the coarse particle discharge port, and the filter screen is inclined downwardly in the direction of the coarse particle outlet.

[0010] The end of the material conveying pipe is equipped with the first flange plate, the feed pipe of the cyclone is equipped with the second flange plate matched with the first flange plate, and the first flange plate and the second flange plate are connected through the connecting bolt.

[0011] The utility model discloses a structure as above, has simple structure, can pre-classify, avoids the advantages such as good separation effect of jamming. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structure schematic diagram of the utility model.

[0013] Figure 2 It is Figure 1 The structure schematic diagram of the top direction.

[0014] Figure 3 It is the partial section view of the conveying table part of the utility model.

[0015] Figure 4 It is Figure 3 The enlarged view of A of DETAILED DESCRIPTION

[0016] The utility model is further explained in connection with the drawings:

[0017] As shown in the drawings, a hydrocyclone group feeding device with pre-classification function is provided with a conveying table 1, a conveying cavity is arranged in the conveying table 1, the conveying table 1 is respectively provided with a feeding port 2, a coarse particle discharge port 3 and a fine particle discharge port 4 which are communicated with the conveying cavity, the fine particle discharge port 4 is provided with a filter screen 5, a conveying shaft 6 and a conveying spiral blade 7 are arranged in the conveying cavity, one end of the conveying shaft 6 is rotatably connected with the conveying table 1, the other end of the conveying shaft 6 penetrates through the conveying table 1 and is connected with an output shaft of a conveying motor 18, the conveying spiral blade 7 is sleeved on the outer wall of the conveying shaft 6 in the conveying cavity, and the rotating conveying direction of the conveying spiral blade 7 is towards the group particle discharge port direction.

[0018] According to the above scheme, the conveying motor 18 drives the conveying shaft 6 to rotate, the conveying shaft 6 drives the conveying spiral blade 7 to rotate, the material enters through the feeding port 2, the fine particle product is discharged through the fine particle discharge port 4 after being filtered by the filter screen 5 under the condition of the conveying blade rotation, and the coarse particle product which is not filtered out is conveyed to the coarse particle discharge port 3 through the conveying bolt blade rotation, and then the coarse particle product is discharged.

[0019] Further, the fine particle discharge port 4 is connected with a feeding pipe 8, and the feeding pipe 8 is connected with a feeding pipe 9 of a hydrocyclone 19.

[0020] Further, the conveying cavity of the two ends of the conveying shaft 6 is respectively provided with a partition plate 10, the partition plate 10 is fixed in the conveying cavity, the two ends of the conveying shaft 6 respectively penetrate through the through holes in the partition plate 10 and are connected with the conveying table 1, the conveying spiral blade 7 is connected on the conveying shaft 6 between the partition plates 10, and the parts connected between the conveying shaft 6 and the conveying table 1 are separated by the partition plate 10, so that the stable operation is ensured.

[0021] The through hole of the partition plate 10 is connected with the conveying shaft 6 through a sealing ring, and the conveying shaft 6 rotates in the sealing ring, since the two ends of the conveying shaft 6 are respectively connected with the conveying table 1 through bearings 20, the partition plate 10 can protect the bearings and other parts from being corroded by the ore pulp.

[0022] Further, the bottom of the conveying table 1 is provided with a discharge port 11, the filter screen 5 is arranged at the position of the discharge port 11, a first separation plate 12 is connected below the filter screen 5, one end of the filter screen 5 is fixedly connected with the inner wall of the conveying table 1, the other end of the filter screen 5 is connected with a second separation plate 13, the two sides of the first separation plate 12 and the second separation plate 13 are respectively fixedly connected with a protection plate 14, the fine particle discharge port 4 is formed between one end of the protection plate 14, the first separation plate 12 and the conveying table 1, the coarse particle discharge port 3 is formed between the other end of the protection plate 14, the second separation plate 13 and the conveying table 1, and the filter screen 5 is inclined towards the obliquely lower side of the coarse particle outlet direction.

[0023] The filter screen 5 is installed on one side of the discharge port 11, the other side of the discharge port 11 is in an open state, the lower side of the filter screen 5 is connected through an L-shaped first separation plate 12, the vertical part of the L-shaped first separation plate 12 is connected with the end of the filter screen 5, the horizontal part of the L-shaped first separation plate 12 is arranged directly below the filter screen 5, a second separation plate 13 is connected with the vertical part of the L-shaped first separation plate 12 and extends towards the direction away from the first separation plate 12, the left and right sides of the first separation plate 12, the second separation plate 13 and the filter screen 5 are connected through a protection plate 14 respectively, the gap between the first separation plate 12, the filter screen 5, the protection plate 14 and the conveying table 1 is a fine particle discharge gap, the end of the fine particle discharge gap is a fine particle discharge port 4, the gap between the second separation plate 13, the protection plate 14, the conveying table 1 and the open discharge port 11 is a coarse particle discharge gap, the end of the coarse particle discharge gap is a coarse particle discharge port 3.

[0024] Further, the end of the material conveying pipe 8 is provided with a first flange plate 15, the feed pipe 9 of the hydrocyclone 19 is provided with a second flange plate 16 matched with the first flange plate 15, and the first flange plate 15 and the second flange plate 16 are connected through connecting bolts 17.

[0025] The material conveying pipe 8 is connected with the feed port 2 of the hydrocyclone 19 through the flange plate.

[0026] When the mineral screening work is carried out, the mineral is first put into the inside of the conveying table through the feed port 2, the conveying motor 18 is started, the conveying motor 18 drives the conveying shaft 6 to rotate, the conveying shaft 6 drives the conveying spiral blade 7 to rotate, the conveying spiral blade 7 rotates to convey the mineral in the inside of the conveying table to the discharge port 11, the mineral is quantitatively conveyed through the conveying spiral blade 7, the mineral is preliminarily filtered through the filter screen 5 from the discharge port 11, the fine particles are filtered from the filter screen 5 to the upper side of the first separation plate 12, and the coarse mineral is separated out through the second separation plate 13, the mineral falling to the first separation plate 12 through the filter screen 5 is conveyed to the inside of the straight cylinder of the hydrocyclone 19 through the material conveying pipe 8, and is rotated in the straight cylinder of the hydrocyclone 19, under the action of the inertial centrifugal force, the coarse particles are thrown to the wall and flow downwards, finally, the coarse particles are discharged from the sand setting head of the hydrocyclone 19 to become sand, and the fine particles are driven by the liquid flowing to the center and flow out from the center overflow pipe of the hydrocyclone 19 to become overflow, the filter screen 5 is arranged to preliminarily screen the mineral slurry, so that the feed pipe 9 of the hydrocyclone 19 is prevented from being blocked, and the utility model has the advantages of simple structure, pre-classification, prevention of blockage and good separation effect.

Claims

1. A hydrocyclone group feeding device with pre-classification function, characterized in that, The system includes a conveying platform with a conveying chamber. The platform has an inlet, a coarse particle outlet, and a fine particle outlet, all connected to the conveying chamber. A filter screen is installed at the fine particle outlet. The conveying chamber contains a conveying shaft and conveying spiral blades. One end of the conveying shaft is rotatably connected to the conveying platform, and the other end extends through the platform and connects to the output shaft of a conveying motor. Conveying spiral blades are fitted onto the outer wall of the conveying shaft within the conveying chamber, rotating in the direction of the conveying spiral blades towards the fine particle outlet. The fine particle outlet is connected to a conveying pipe, which in turn is connected to the inlet pipe of a hydrocyclone. A discharge port is located at the bottom of the conveying platform, and a filter screen is installed... At the discharge port, the bottom of the filter screen is connected to the first separation plate, one end of the filter screen is fixedly connected to the inner wall of the conveyor table, and the other end of the filter screen is connected to the second separation plate. The first and second separation plates are fixedly connected to the protective plates on both sides. A fine particle discharge port is formed between one end of the protective plate, the first separation plate, and the conveyor table, and a coarse particle discharge port is formed between the other end of the protective plate, the second separation plate, and the conveyor table. The filter screen is inclined downwards towards the coarse particle outlet. The end of the conveying pipe is provided with a first flange, and the feed pipe of the hydrocyclone is provided with a second flange that mates with the first flange. The first flange and the second flange are connected by connecting bolts.

2. A hydrocyclone group feeding device with pre-classification function according to claim 1, characterized in that... The conveying shaft has partition plates installed in the conveying cavities at both ends. The partition plates are fixed in the conveying cavities. The two ends of the conveying shaft pass through the through holes on the partition plates and are connected to the conveying table. The conveying spiral blades are connected to the conveying shaft between the partition plates. The partition plates separate the parts connecting the conveying shaft and the conveying table to ensure stable operation.

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