Automatic ore sampling chute

Abstract

The invention provides an automatic ore sampling chute. The automatic ore sampling chute comprises a waste rock chute, a cover plate, a connecting plate, a sampling chute, an air cylinder, a baffle and a control circuit, the waste rock chute is obliquely arranged, a rectangular through groove is formed in the lower surface of the waste rock chute, a cover plate is fixedly laid on the upper half portion of the upper surface of the inner side of the waste rock chute, a connecting plate is fixedly connected to the oblique lower surface of the waste rock chute in a threaded mode, an obliquely-arranged sampling chute is welded to the lower surface of the connecting plate, and two air cylinders are fixed to the lower surface of the waste rock chute. A baffle is arranged in the rectangular through groove in a sliding mode and is in an L shape, the top end of the baffle is fixedly connected with piston rods of two air cylinders, and the air cylinders are pneumatically connected with a pneumatic electromagnetic valve YV. And the pneumatic electromagnetic valve YV executes control through a control circuit. The device has the advantages of automatically sampling by electrically controlling the baffle without manual operation, reducing the labor intensity and improving the efficiency. The sampling frequency and the sampling amount are accurate and controllable, ore composition and particle size analysis errors are reduced, the sorting accuracy is improved, and resource waste is avoided.

Description

Technical Field

[0001] This invention relates to the field of mineral processing and production, specifically to an automatic ore sampling sluice. Background Technology

[0002] Waste rock sampling data is a core input for the metal balance of the entire mining process. Accurate statistics on waste rock grade and ore loss rate ensure the traceability of metal flow from mining to concentrate production, supporting production decisions and resource reserve verification.

[0003] Waste rock may contain recyclable metals or hazardous elements. Sampling and analyzing the composition of waste rock can assess its reuse value (such as building material raw materials) and environmental risks (such as acidic wastewater generation), providing a basis for tailings dam management and ecological restoration. It is also a direct basis for calculating the "waste rock mixing rate" and "ore loss rate".

[0004] In the mineral processing process, the crushed ore is separated from the waste rock by intelligent sorting equipment and discarded. The discarded waste rock (which usually retains a small amount of ore) has a particle size of 10-30mm in diameter. The waste rock is transported to a high place by a high-angle belt conveyor, and samples are taken from the waste rock at the discharge port of the belt conveyor.

[0005] The existing technical shortcomings are: Manual sampling is time-consuming, intensive, and inefficient. It also cannot be done continuously, and the sampling frequency and quantity are difficult to control precisely. The samples lack representativeness, resulting in a large deviation between the measurement and analysis results of ore composition and particle size and the actual working conditions. This affects the ore sorting indicators and leads to resource waste. Summary of the Invention

[0006] The purpose of this invention is to provide an automatic ore sampling sluice.

[0007] This invention is implemented by the following technical solution: An automatic ore sampling chute includes a waste rock chute, a cover plate, a connecting plate, a sampling chute, a cylinder, and a baffle. The waste rock chute is inclined, and a rectangular through groove is formed on its lower surface. A cover plate is fixedly laid on the upper half of the inner side of the waste rock chute, which covers the upper half of the sampling groove. A connecting plate is threadedly fixed to the inclined lower surface of the waste rock chute. The connecting plate is in the shape of a "U". An inclined sampling chute is welded to the lower surface of the connecting plate. Two cylinders are fixed to the lower surface of the waste rock chute. A baffle is slidably provided in the rectangular through groove. The baffle is in the shape of an "L" and its top is fixedly connected to the piston rod of the two cylinders. The cylinders are connected to the pneumatic solenoid valve YV air circuit.

[0008] Preferably, the pneumatic solenoid valve YV is controlled by a control circuit; the control circuit includes a time relay KT, a relay KA, the pneumatic solenoid valve YV, and an indicator light HL; the time relay KT, the relay KA, the pneumatic solenoid valve YV, and the indicator light HL are connected in parallel in the circuit.

[0009] Preferably, multiple screws are fixed on the inclined lower surface of the waste rock chute outside the rectangular through groove. The connecting plate has through holes corresponding to the screws. The screws pass through the through holes on the connecting plate and are threadedly connected to nuts, so that the connecting plate is fixed on the inclined lower surface of the waste rock chute.

[0010] Preferably, the thickness of the baffle and the waste rock chute are equal, and after the bottom end of the baffle abuts against the end face of the rectangular through groove, its upper surface is coplanar with the inner upper surface of the waste rock chute.

[0011] Preferably, the thickness of the cover plate is half the thickness of the baffle plate.

[0012] Preferably, two limiting plates are symmetrically fixed to the inner end face of the connecting plate, and the two limiting plates are placed below the rectangular through groove.

[0013] The advantages of this invention are: by controlling the opening and closing of two pneumatic solenoid valves through a time relay, the opening and closing of the baffle by two cylinders is achieved, eliminating the need for manual sampling throughout the entire sampling process, reducing labor intensity, and improving sampling efficiency. It ensures precise control of sampling frequency and quantity, thereby reducing the deviation between the measured analysis results of ore composition and particle size obtained from the samples and the actual working conditions, thus improving the accuracy of ore sorting indicators and avoiding resource waste. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 yes Figure 1 Axonometric view in the rear-view direction; Figure 3 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 4 yes Figure 3 Axonometric view in the rear-view direction; Figure 5 This is a partial structural diagram. Figure 1 ; Figure 6 This is a schematic diagram of the baffle structure; Figure 7 It is a control circuit diagram; Figure 8 This is a reference diagram showing the usage status.

[0015] In the diagram: 1. Waste rock chute, 1.1. Rectangular through-slot, 1.2. Screw, 2. Cover plate, 3. Connecting plate, 3.1. Through hole, 3.2. Limiting plate, 4. Sampling chute, 5. Cylinder, 6. Baffle, 8. Sampling box. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] like Figures 1 to 8 As shown, an automatic ore sampling chute includes a waste rock chute 1, a cover plate 2, a connecting plate 3, a sampling chute 4, a cylinder 5, a baffle 6, and a control circuit. The waste rock chute 1 is inclined and has a rectangular through groove 1.1 on its lower surface. The upper half of the inner side of the waste rock chute 1 is fixedly covered with a cover plate 2. The thickness of the cover plate 2 is half the thickness of the baffle 6. The cover plate 2 covers the upper half of the rectangular through groove 1.1. The baffle 6 is slidably installed inside the rectangular through groove 1.1. The upper surface of the baffle 6 is in sliding contact with the lower surface of the cover plate 2. A connecting plate 3 is threadedly fixed to the inclined lower surface of the waste rock chute 1. Multiple screws 1.2 are fixed to the inclined lower surface of the waste rock chute 1 outside the rectangular through groove 1.1. The connecting plate 3 has through holes 3.1 corresponding to the screws 1.2. The screws 1.2 pass through the through holes 3.1 on the connecting plate 3 and are threadedly connected to nuts, so that the connecting plate 3 is fixed to the inclined lower surface of the waste rock chute 1. Two limiting plates 3.2 are symmetrically fixed to the inner end face of the connecting plate 3. The two limiting plates 3.2 are placed below the rectangular through groove 1.1 to support the baffle 6 and prevent the baffle 6 from deforming due to long-term impact of waste rock.

[0018] The thickness of the baffle 6 and the waste rock chute 1 are equal, so that when the bottom end of the baffle 6 abuts against the end face of the rectangular through groove 1.1, its upper surface is coplanar with the inner upper surface of the waste rock chute 1, so that the waste rock can slide more smoothly in the waste rock chute 1. The connecting plate 3 is generally U-shaped, and the lower surface of the connecting plate 3 is welded with an inclined sampling chute 4. Two cylinders 5 are fixed on the lower surface of the waste rock chute 1. The baffle 6 is L-shaped, and its top end is fixedly connected to the piston rod of the two cylinders 5. The two cylinders 5 are respectively connected to the pneumatic solenoid valves YV1 and YV2 through air circuits. The pneumatic solenoid valve YV is controlled by a control circuit. The control circuit includes a time relay KT, relays KA1 and KA2, pneumatic solenoid valves YV1 and YV2, indicator lights HL1 and HL2. The coils of time relay KT, relays KA1 and KA2, pneumatic solenoid valves YV1 and YV2, and indicator lights HL1 and HL2 are connected in parallel in the circuit. The coil of relay KA1 is connected in series with one normally open contact of time relay KT, the coil of relay KA2 is connected in series with another normally open contact of time relay KT, pneumatic solenoid valve YV1 is connected in series with one normally open contact of relay KA1, pneumatic solenoid valve YV2 is connected in series with one normally open contact of relay KA2, indicator light HL1 is connected in series with another normally open contact of relay KA1, and indicator light HL2 is connected in series with another normally open contact of relay KA2.

[0019] Working principle: During installation, the waste rock chute 1 can be installed above the feed inlet of the inclined belt conveyor. After being sorted by the intelligent sorting equipment, the waste rock falls into the waste rock chute 1 from the discharge outlet, and then falls onto the inclined belt conveyor. By setting the time through the time relay KT, the pneumatic solenoid valves YV1 and YV2 open every half hour and delay for 5 seconds (that is, the two cylinders 5 control the baffle 6 to open every half hour and delay for 5 seconds), so that the waste rock in the waste rock chute 1 falls from the rectangular channel 1.1 into the sampling chute 4, and then falls along the sampling chute 4 into the sampling box 8.

[0020] The entire sampling process requires no manual sampling, reducing labor intensity and improving sampling efficiency. It ensures precise control over sampling frequency and quantity, thereby reducing the deviation between the measured analysis results of ore composition and particle size obtained from the samples and the actual working conditions. This improves the accuracy of ore sorting indicators and avoids resource waste.

[0021] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic ore sampling sluice, characterized in that, It includes a waste rock chute (1), a cover plate (2), a connecting plate (3), a sampling chute (4), a cylinder (5), and a baffle (6); The waste rock chute (1) is inclined and has a rectangular through groove (1.1) on its lower surface. A cover plate (2) is fixedly laid on the upper half of the inner side of the waste rock chute (1). The cover plate (2) covers the upper half of the sampling groove (1.1). A connecting plate (3) is threadedly fixed to the inclined lower surface of the waste rock chute (1). The connecting plate (3) is in the shape of "U". An inclined sampling chute (4) is welded to the lower surface of the connecting plate (3). Two cylinders (5) are fixed to the lower surface of the waste rock chute (1). A baffle (6) is slidably provided in the rectangular through groove (1.1). The baffle (6) is in the shape of "L". Its top end is fixedly connected to the piston rod of the two cylinders (5). The cylinder (5) and the pneumatic solenoid valve YV are connected through the air circuit.

2. The automatic ore sampling sluice box according to claim 1, characterized in that, The pneumatic solenoid valve YV is controlled by a control circuit; the control circuit includes a time relay KT, a relay KA, the pneumatic solenoid valve YV, and an indicator light HL; the time relay KT, the relay KA, the pneumatic solenoid valve YV, and the indicator light HL are connected in parallel in the circuit.

3. The automatic ore sampling sluice box according to claim 1, characterized in that, The inclined lower surface of the waste rock chute (1) is located outside the rectangular through groove (1.1) and a plurality of screws (1.2) are fixed thereon. The connecting plate (3) has through holes (3.1) that correspond one-to-one with the screws (1.2). The screws (1.2) pass through the through holes (3.1) on the connecting plate (3) and are threadedly connected to the nuts, so that the connecting plate (3) is fixed on the inclined lower surface of the waste rock chute (1).

4. The automatic ore sampling sluice box according to claim 2, characterized in that, The thickness of the baffle (6) and the waste rock chute (1) are equal. After the bottom end of the baffle (6) and the end face of the rectangular through groove (1.1) abut against each other, its upper surface and the inner upper surface of the waste rock chute (1) are coplanar.

5. The automatic ore sampling sluice box according to claim 1, characterized in that, The thickness of the cover plate (2) is half the thickness of the baffle plate (6).

6. The automatic ore sampling sluice box according to claim 1, characterized in that, The inner end face of the connecting plate (3) is symmetrically fixed with two limiting plates (3.2), and the two limiting plates (3.2) are placed below the rectangular through groove (1.1).

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