Automatic ore sampling device

Abstract

The utility model provides an automatic ore sampling device which comprises a shell, a speed reducing motor is arranged in the shell, a main shaft is arranged at the top of the speed reducing motor, the speed reducing motor and the main shaft are in transmission connection, a first-stage screen is arranged at the top of the main shaft and is bent, and a second-stage screen is arranged at the bottom of the main shaft. An ore guide plate and a protective plate are respectively arranged on two sides of the ore bin, and two adjusting baffles are symmetrically arranged on the other two sides of the ore bin; a second-level screen and a third-level screen are sequentially arranged below the first-level screen, and a first baffle and a second baffle are arranged on the side walls, corresponding to the second-level screen and the third-level screen, of the shell respectively. Sampling of ore blocks and ore powder is achieved through the three-level screen, timing sampling is achieved through the rotating speed of the speed reducing motor, the adjusting baffle and the first-level screen structure, influences of human factors in the sampling process are effectively avoided, and the device can be widely used for monitoring the daily ore removal grade of a mine.

Description

Technical Field

[0001] This utility model belongs to the technical field of mining production equipment and relates to an automatic ore sampling device. Background Technology

[0002] Geological sampling is one of the important tasks of mine geological work and is the main way to determine the grade of ore. However, the collection of compliant and representative samples is subject to many constraints, such as the sense of responsibility of the sampling personnel, the geological knowledge of the ore body by the geologists, and the environment of the mining site. In addition, traditional methods such as grooving and continuous rapid drilling are time-consuming and labor-intensive, and have poor service capabilities for controlling the daily ore grade of the mining site. Especially for heterogeneous mineralized ore bodies, the above methods are prone to large errors in predicting the daily ore grade of the mine. Utility Model Content

[0003] The purpose of this invention is to address the problems existing in the prior art by providing an automatic ore sampling device that solves the problem that human factors interfere with the traditional sampling methods, making it impossible to accurately predict the grade of ore produced in the mine.

[0004] Therefore, the present invention adopts the following technical solution:

[0005] An automatic ore sampling device includes a housing, inside which a geared motor is installed. A main shaft is installed on the top of the geared motor, and the two are connected in a transmission manner. A primary screen is installed on the top of the main shaft. The primary screen is bent and its edge contacts the inner wall of the housing.

[0006] The outer shell has a rectangular opening, with a guide plate and a guard plate on each side, and two symmetrically arranged adjustment baffles on the other two sides. The primary screen is located directly below the rectangular opening.

[0007] Below the primary screen, a secondary screen and a tertiary screen are arranged in sequence; wherein, the angle between the primary screen and the horizontal plane is -20 to -40 degrees, the angle between the secondary screen and the horizontal plane is -5 to -10 degrees, and the angle between the tertiary screen and the horizontal plane is 5 to 10 degrees.

[0008] The outer shell is provided with a first baffle and a second baffle on the side wall corresponding to the secondary and tertiary screens, respectively; the outer shell is provided with a first guide plate on the outer wall corresponding to the primary screen; a second guide plate is provided on the outer wall corresponding to the secondary screen and adjacent to the main shaft on one side; a third guide plate is provided on the outer wall corresponding to the tertiary screen and adjacent to the main shaft on one side.

[0009] The outer shell is provided with a ore block discharge port and a powder ore discharge port on the other side wall corresponding to the secondary and tertiary screens, respectively.

[0010] Furthermore, the housing is equipped with a motor switch and a rotary speed regulator, and the motor switch, rotary speed regulator and geared motor are all electrically connected.

[0011] Furthermore, a vertically arranged ore baffle is provided above the adjusting baffle, and the two are in vertical contact. The bottom of the ore baffle is in contact with the guard plate, the adjusting baffle and the ore guide plate in sequence.

[0012] Furthermore, both the first baffle and the second baffle are vertically arranged, and both are detachably connected to the outer casing.

[0013] Furthermore, the first guide plate, the second guide plate, and the third guide plate are all the same in shape and size, and are arranged in parallel with the horizontal plane at an angle of -20 to -40 degrees.

[0014] Furthermore, the outer shell is provided with vertically arranged strip-shaped openings at the positions corresponding to the first baffle and the second baffle, and the side wall of the outer shell is provided with hanging beams at the positions corresponding to the first baffle and the second baffle. The hanging beams are U-shaped and are respectively inserted into the first baffle and the second baffle.

[0015] Furthermore, the outer shell has a horizontally arranged slot on the other side wall corresponding to the three-stage screen, which is used to insert the three-stage screen, and the three-stage screen can be pushed and pulled back and forth along the slot.

[0016] Furthermore, a block baffle is provided above the ore discharge port.

[0017] Furthermore, a powder ore recovery bin is formed between the three-stage screen and the inner wall of the outer shell.

[0018] Furthermore, the adjusting baffle is L-shaped.

[0019] The beneficial effects of this utility model are as follows:

[0020] This invention is mainly used in mine conveyor belts and cantilever tunneling machines to collect both lumpy and powdery ore. The lumpy ore is transported to a laboratory for crushing and analysis, while the powdery ore can be transported to a laboratory for direct analysis or analyzed on-site using a portable spectrometer. This invention enables automatic sampling of ore blocks and powders, eliminating human interference during sampling and allowing for more accurate determination of the ore grade. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a top view of the structure of this utility model;

[0023] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure along the A-A' direction;

[0024] Figure 4 for Figure 2 A schematic diagram of the cross-sectional structure along the B-B' direction;

[0025] Figure 5 This is a top view of the primary screen structure in this utility model.

[0026] In the diagram, 1-ore baffle, 2-adjusting baffle, 3-primary screen, 4-guide plate, 4a-first guide plate, 4b-second guide plate, 4c-third guide plate, 5-guard plate, 6-first baffle, 7-second baffle, 8-tertiary screen, 9-motor switch, 10-rotary speed regulator, 11-powder ore discharge port, 12-lump ore discharge port, 13-secondary screen, 14-lump baffle, 15-powder ore recovery bin, 16-gear motor, 17-main shaft, 18-lifting beam, 19-slot, 20-outer shell. Detailed Implementation

[0027] The technical solution of this utility model will be described below with reference to the accompanying drawings and implementation methods.

[0028] like Figure 1-4 As shown, an automatic ore sampling device includes a housing 20, inside which a geared motor 16 is provided. The top of the geared motor 16 is provided with a vertically arranged main shaft 17, and the two are connected in a transmission manner. The top of the main shaft 17 is provided with a primary screen 3. Specifically, the geared motor 16 can drive the main shaft 17 to rotate at different speeds.

[0029] The outer shell 20 has a rectangular opening, with a guide plate 4 and a guard plate 5 on each side. On the other two sides, there are two symmetrically arranged adjusting baffles 2. The adjusting baffles 2 are L-shaped, and the primary screen 3 is located directly below the rectangular opening.

[0030] like Figure 5 As shown, the primary screen 3 is circular, with several screen holes concentrated at the rectangular opening of the outer shell 20. Its screening mesh size is 50 mm or less for mineral blocks and powders. Specifically, the primary screen 3 is bent, and its edge is in contact with the inner wall of the outer shell 20.

[0031] Above the adjusting baffle 2 is a vertically arranged ore baffle 1, and the two are in vertical contact. The bottom of the ore baffle 1 is in contact with the guard plate 5, the adjusting baffle 2 and the guide plate 4 in sequence. Specifically, the distance between the two ore baffles 1 is the same as the width of the discharge port of the cantilever tunneling machine or belt conveyor, so that the ore can fall directly onto the guard plate 5 instead of the primary screen 3.

[0032] Below the primary screen 3, a secondary screen 13 and a tertiary screen 8 are arranged in sequence. The secondary screen 13 is used to screen mineral lumps with a mesh size of less than 20 mm, and the tertiary screen 8 is used to screen mineral powder. The diameter of the screen opening can be selected according to the particle size required for laboratory optimization experiments. Specifically, in a clockwise direction, the angle between the primary screen 3 and the horizontal plane is -20 to -40 degrees, the angle between the secondary screen 13 and the horizontal plane is -5 to -10 degrees, and the angle between the tertiary screen 8 and the horizontal plane is 5 to 10 degrees. A powder and mineral recovery bin 15 is formed between the tertiary screen 8 and the inner wall of the outer shell 20.

[0033] The outer casing 20 has a first baffle 6 and a second baffle 7 on the side walls corresponding to the secondary screen 13 and the tertiary screen 8, respectively. The first baffle 6 and the second baffle 7 are both vertically arranged and detachably connected to the outer casing 20. Specifically, the outer casing 20 has vertically arranged strip openings at the positions corresponding to the first baffle 6 and the second baffle 7. The strip openings are adapted to the size of the first baffle 6 and the second baffle 7, and the top of the strip openings is provided with a hanging beam 18. The hanging beam 18 is U-shaped and is inserted into the first baffle 6 and the second baffle 7, respectively. In addition, the outer casing 20 has a horizontally arranged slot 19 on the other side wall corresponding to the tertiary screen 8, which is used to insert the tertiary screen 8. The tertiary screen 8 can be pushed and pulled back and forth along the slot 19.

[0034] The outer shell 20 is provided with a first guide plate 4a on the outer wall corresponding to the primary screen 3; the secondary screen 13 is adjacent to the main shaft 17 on one side, and the outer shell 20 is provided with a second guide plate 4b on the outer wall corresponding to the secondary screen 13; the tertiary screen 8 is adjacent to the main shaft 17 on one side, and the outer shell 20 is provided with a third guide plate 4c on the outer wall corresponding to the tertiary screen 8; the outer shell 20 is provided with a ore block discharge port 12 and a powder ore discharge port 11 on the other side wall corresponding to the secondary screen 13 and the tertiary screen 8, respectively, and an ore block baffle 14 is provided above the ore block discharge port 12; specifically, the first guide plate 4a, the second guide plate 4b and the third guide plate 4c are all the same in shape and size, and the three are arranged in parallel, with an angle of -20 to -40 degrees to the horizontal plane in a clockwise direction.

[0035] The housing 20 is equipped with a motor switch 9 and a rotary speed regulator 10. The motor switch 9, the rotary speed regulator 10 and the geared motor 16 are all electrically connected. Specifically, timing sampling can be achieved by adjusting the adjustment baffle 2 and by using the rotary speed regulator 10 to adjust the speed of the geared motor 16.

[0036] The usage process of this utility model is as follows:

[0037] First, place the device on a movable and height-adjustable steel frame to ensure perfect compatibility with the cantilever tunneling machine or belt conveyor. The ore baffle 1 should correspond exactly to the discharge port of the cantilever tunneling machine or belt conveyor to ensure that the ore falls directly onto the guard plate 5 instead of the primary screen 3. Then, adjust the distance between the two adjusting baffles 2, and start the motor switch 9 and the rotary speed regulator 10 to adjust to a suitable motor speed to begin sampling.

[0038] When it is necessary to collect ore blocks, the first baffle 6 is activated, the second baffle 7 and the ore block baffle 14 are removed, the third-stage screen 8 is replaced with an iron plate, and a ore block collection device such as a sample bag is set below the ore block discharge port 12. Ore blocks larger than 50mm roll down to the mine car or conveyor belt through the first guide plate 4a outside the first-stage screen 3, ore blocks smaller than 20mm roll down to the mine car or conveyor belt through the third guide plate 4c outside the third-stage screen 8, and ore between 20-50mm enters the ore block collection device through the ore block discharge port 12.

[0039] When it is necessary to collect mineral powder, remove the first baffle 6 and the second baffle 7, activate the ore block baffle 14 and the three-stage screen 8, and set up ore block collection devices such as sample bags below the ore discharge port 11. Ore exceeding the ore powder particle size requirement enters the mine car or conveyor belt through the first guide plate 4a, the second guide plate 4b and the third guide plate 4c respectively, while ore powder that meets the ore powder particle size requirement enters the ore block collection device.

Claims

1. An automatic ore sampling device, comprising a housing (20), characterized in that, The outer shell (20) is equipped with a geared motor (16), and the top of the geared motor (16) is equipped with a main shaft (17), and the two are connected in a transmission manner. The top of the main shaft (17) is equipped with a primary screen (3), which is bent and its edge is in contact with the inner wall of the outer shell (20). Below the primary screen (3) are arranged a secondary screen (13) and a tertiary screen (8), wherein the primary screen (3) has an angle of -20 to -40 degrees with the horizontal plane, the secondary screen (13) has an angle of -5 to -10 degrees with the horizontal plane, and the tertiary screen (8) has an angle of 5 to 10 degrees with the horizontal plane; The outer shell (20) is provided with a first baffle (6) and a second baffle (7) on the side walls corresponding to the secondary screen (13) and the tertiary screen (8), respectively. The outer shell (20) is provided with a first guide plate (4a) on the outer wall corresponding to the first-stage screen (3); one side of the second-stage screen (13) is adjacent to the main shaft (17), and the outer shell (20) is provided with a second guide plate (4b) on the outer wall corresponding to the second-stage screen (13); one side of the third-stage screen (8) is adjacent to the main shaft (17), and the outer shell (20) is provided with a third guide plate (4c) on the outer wall corresponding to the third-stage screen (8); the outer shell (20) is provided with a block discharge port (12) and a powder discharge port (11) on the other side wall corresponding to the second-stage screen (13) and the third-stage screen (8), respectively. The outer shell (20) has a rectangular opening, with a guide plate (4) and a guard plate (5) on its two sides respectively, and two adjusting baffles (2) arranged symmetrically on the other two sides. The primary screen (3) is located directly below the rectangular opening.

2. The automatic ore sampling device according to claim 1, characterized in that, The housing (20) is provided with a motor switch (9) and a rotary speed regulator (10), and the motor switch (9), the rotary speed regulator (10) and the geared motor (16) are all electrically connected.

3. The automatic ore sampling device according to claim 1, characterized in that, Above the adjusting baffle (2) is a vertically arranged ore baffle (1), and the two are in vertical contact. The bottom of the ore baffle (1) is in contact with the guard plate (5), the adjusting baffle (2) and the ore guide plate (4) in sequence.

4. The automatic ore sampling device according to claim 1, characterized in that, The first baffle (6) and the second baffle (7) are both vertically arranged, and both are detachably connected to the outer shell (20).

5. The automatic ore sampling device according to claim 1, characterized in that, The first guide plate (4a), the second guide plate (4b) and the third guide plate (4c) are all the same in shape and size, and are arranged in parallel with the horizontal plane at an angle of -20 to -40 degrees.

6. The automatic ore sampling device according to claim 4, characterized in that, The side wall of the outer shell (20) is provided with strip-shaped openings at the positions corresponding to the first baffle (6) and the second baffle (7). The top of the strip-shaped opening is provided with a hanging beam (18), which is U-shaped and is respectively inserted into the first baffle (6) and the second baffle (7).

7. The automatic ore sampling device according to claim 1, characterized in that, The outer shell (20) has a slot (19) on the other side wall corresponding to the three-stage screen (8), which is used to insert the three-stage screen (8). The three-stage screen (8) can be pushed and pulled back and forth along the slot (19).

8. The automatic ore sampling device according to claim 1, characterized in that, A block baffle (14) is provided above the ore discharge port (12).

9. The automatic ore sampling device according to claim 1, characterized in that, The three-stage screen (8) and the inner wall of the outer shell (20) form a powder ore recovery bin (15).

10. An automatic ore sampling device according to claim 1, characterized in that, The adjusting baffle (2) is L-shaped.

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