Analog device for measuring the opening of a jig gate.

Description

1 / 7 “ANALOG MEASURING DEVICE FOR THE OPENING OF A JIG GATE” FIELD OF THE INVENTION

[001] The present invention falls within the field of technologies related to the separation and concentration of ores, and more specifically, within the field of technologies related to mining jigs. FUNDAMENTALS OF THE INVENTION

[002] Jigging is a gravity separation process that uses a hydraulic system based on the repeated vertical expansion (dilation) and contraction (compaction) of a bed of particles. This movement is generated by the controlled pulsation of water, promoting the efficient concentration of minerals with different densities.

[003] Through water pulsations, the jigging process induces the separation of materials based on their relative densities, allowing denser minerals to be concentrated at the bottom of the bed, while less dense ones are transported to the surface or to the disposal area.

[004] The jig, the main piece of equipment in the jigging process, is responsible for generating the water pulses that vertically move the mass of particles in a separation chamber. The particles pass through this chamber, or reservoir, where the stratification of the layers occurs, favoring the efficient separation of minerals according to their physical properties.

[005] To ensure optimal jig performance, it is essential to maintain an adequate pulp level above the sieve screen, which acts as a support for the particle bed. This control is achieved by an adjustable gate in the discharge chute, which regulates the operating level and ensures process stability.

[006] In this way, the opening of the gate is a Petition 870240110712, dated 12 / 27 / 2024, page 9 / 21 2 / 7 is a very important parameter for the jigging process, being directly linked to the reduction of silica and a higher concentration of ore after exiting the jig.

[007] However, currently there are no technologies focused on measuring the gate opening of mining jigs, so the adjustment of this opening is done on-site, manually and following a ruler-shaped scale, meaning that it is not possible to make effective adjustments to other values, and it is also dependent on the operator's experience. STATE OF THE ART

[008] The search for historical background led to some documents that reveal matters within the technological field of the present invention.

[009] The state-of-the-art document CN 114518085 A describes a gate level meter comprising an outer gate frame and gate body, sliding rail grooves formed in the outer gate frame and the two sides of the outer gate frame sliding in the sliding rail grooves; proximity switches are connected to the two sides of the upper part of the gate body and the positions, close to the gate position assembly, of the proximity switches are used to display the gate position values;The gate cleaning mechanism comprises a sliding rail cleaning assembly and a gate side edge cleaning assembly, the lower part of the gate body being connected to a rotating piece, which actuates the sliding rail cleaning assembly to clean its grooves after water ingress, and the upper part of the sliding rail cleaning assembly connected to the gate side edge cleaning assembly. After the gate starting assembly controls and actuates the gate body to open, the assembly of; Petition 870240110712, dated 12 / 27 / 2024, page 10 / 21 3 / 7 Gate Position displays the numerical value of the gate's ascending or descending position, with the numerical value of the gate position being detected more accurately compared to a traditional contact-type gate position meter. Finally, the gate cleaning mechanism is activated synchronously when the gate body opens, thus preventing impurities from accumulated water on the gate from hindering its opening.

[010] The document CN 114518085 A described above uses switches, so that, when activated, they indicate a fixed and specific position of the gate. In this way, it differs from the present invention, since the present invention allows a gradual measurement of the gate, not being in fixed positions. In addition, it does not describe an analog device, as the present invention describes. BRIEF DESCRIPTION OF THE INVENTION

[011] The present invention describes an analog measuring device for the opening of a jig gate, the device comprising: a support rod; a distance sensor; and a baffle. Wherein the support rod is fixed to the discharge chute of a jig, and wherein the support rod is made of metallic materials. And wherein the distance sensor is fixed to the upper end of the support rod.

[012] The baffle, according to the present invention, is fixed to the jig gate, and has a preferably concave shape, being made of metallic materials. The baffle also comprises a plurality of grooves.

[013] The opening and closing movement of the gate is done by a mechanical drive, in which the gate is supported on the sides by two bearings that are mounted on the part Petition 870240110712, dated 12 / 27 / 2024, page 11 / 21 4 / 7 external to the discharge chute, and the mechanical actuation of the gate can be carried out by a geared motor or by local actuation by a drive handwheel.

[014] In this way, the distance sensor of the present invention emits a laser beam onto the barrier, making it possible to measure the change in angular movement of the gate, which corresponds to its opening or closing. BRIEF DESCRIPTION OF THE FIGURES

[015] To obtain a full and complete visualization of the object of this invention, the figures to which reference is made are presented, as follows.

[016] Figure 1 shows a view of the analog gate opening measurement device, according to the present invention, on a jig.

[017] Figure 2 shows an isometric view of the analog gate opening measurement device according to the present invention.

[018] Figure 3 shows the graph of the percentage opening of the jig's concentrate gate. DETAILED DESCRIPTION OF THE INVENTION

[019] Reference is made in detail to preferred embodiments of the present invention illustrated in the accompanying drawings. Wherever possible, the same or similar reference numbers will be used throughout the drawings to refer to identical or similar features. It should be noted, however, that the drawings are in simplified form and are not represented to precise scale, so minor variations are to be expected.

[020] Initially, it should be noted that the expressions “Measuring device” and “Meter”, as used throughout the text of the present invention, should not be interpreted in a specific or limiting way, but rather Petition 870240110712, dated 12 / 27 / 2024, p. 12 / 21 5 / 7 generally, often being used synonymously with each other to refer to the device of the present invention.

[021] The present invention was developed with the objective of enabling an analog measurement of the actual opening of a jig concentrate gate, since currently there are no technologies focused on measuring the opening of mining jig gates.

[022] Measuring the gate opening of a jig is directly related to silica reduction, and consequently, a better concentration of the ore that was separated by the jig.

[023] For this purpose, the present invention describes, as can be seen in Figures 1 and 2, an analog measuring device (1) for the opening of the gate (7) of a jig (10), such that the device (1) comprises: a support rod (2); a distance sensor (3); and a baffle (4).

[024] As can be seen in Figures 1 and 2, the support rod (2) is fixed to the discharge chute (8) of a jig (10), and is responsible for supporting and maintaining the position of the distance sensor (3). And, in which, the support rod (2) is made of metallic materials, ensuring greater resistance and service life to the meter (1).

[025] As can be seen in Figures 1 and 2, the distance sensor (3) is fixed to the upper end of the support rod (2), and positioned in such a way as to ensure the stability of said sensor (3).

[026] The aforementioned distance sensor (3) is designed to measure distance, and can be compared to a laser tape measure. Furthermore, the distance sensor (3) has an analog output, which sends the data obtained to the control room.

[027] As can be seen in Figures 1 and Petition 870240110712, dated 12 / 27 / 2024, page 13 / 21 6 / 7 2, the baffle (4) is fixed to the gate (7) of the jig (10), so that it moves together with the gate (7), thus following its raising or lowering.

[028] The baffle (4), according to Figure 2, has a preferably concave shape, which increases the accuracy of the measurement, due to the angular movement of the gate (7). And, in which, the baffle (4) is made of metallic materials, ensuring greater resistance and service life to the meter (1).

[029] The baffle (4) also comprises a plurality of grooves (5), which form a graduated scale on the baffle (4), and are designed to provide local indication of the opening and closing of the gate (7).

[030] The grooves (5) are positioned to assist the jig operator (1) in having an idea of ​​the local opening of the gate (7), since the sensor (3) does not have a local indication, only in the control room. Thus, the grooves (5) of the baffle (4) are a ruler that shows openings in 25% increments, and are also designed to calibrate the sensor (3).

[031] The opening and closing movement of the gate (7) is done by a mechanical drive, and its movement is angular, that is, circular, since the gate rotates around its own axis.

[032] The gate (7) is supported on its sides by two bearings that are mounted on the outside of the discharge chute (8), and the mechanical drive of the gate (7) can be carried out by a geared motor, which is driven by the plant's Motor Control Center-MCC, or by local drive by a drive wheel.

[033] In this way, the rotary motion of the motor, or induced through local drive by flywheel of Petition 870240110712, dated 12 / 27 / 2024, page 14 / 21 7 / 7 actuation, is transformed into vertical opening and closing movement of the gate (7).

[034] Thus, as can be seen in Figure 2, the distance sensor (3) emits a laser beam (6) onto the barrier (4), so that when the beam (6) comes into contact with the concave surface of the barrier (4), it is possible to measure the change in the angular movement of the gate (7).

[035] Therefore, it is possible to read the gate opening (7) of a jig (10). Thus, the gate opening data (7) are received in a control room, and can generate graphs, as shown in Figure 3.

[036] In the graph in Figure 3, it is possible to visualize the distance of the sensor (3) to the barrier (4), which is measured and recorded in the graph in real time. The graph presented, therefore, shows the variation in the distance between the sensor (3) and the barrier (4), where this opening range is presented on a scale from 0% to 100%. Furthermore, it is possible to see that the change in position occurs from time to time due to the action of an operator.

[037] Thus, the present invention makes it possible to measure the actual opening of a jig gate, improving accuracy and ensuring better separation of minerals.

[038] Those skilled in the art will appreciate the knowledge presented here and will be able to reproduce the invention in the forms presented and in other variants, covered within the scope of the appended claims. Petition 870240110712, dated 12 / 27 / 2024, page 15 / 21

Claims

1 / 2 CLAIMS 1. Analog measuring device (1) for the opening of the gate (7) of a jig (10), the device (1) characterized in that it comprises: a support rod (2); a distance sensor (3); and a baffle (4).

2. Device according to claim 1, characterized in that the support rod (2) is fixed in the discharge chute (8) of a jig (10).

3. Device according to claim 1, characterized in that the distance sensor (3) has an analog output.

4. Device according to claim 1, characterized in that the baffle (4) is fixed to the gate (7) of the jig (10).

5. Device according to claim 1, characterized in that the baffle (4) has a preferably concave shape.

6. Device according to claim 5, characterized in that the baffle (4) further comprises a plurality of grooves (5).

7. Device according to claim 1, characterized in that the opening and closing movement of the gate (7) is made by a mechanical drive.

8. Device according to claim 1, characterized in that the gate (7) is supported laterally by two bearings that are mounted on the outside of the discharge chute (8).

9. Device according to claim 1, characterized in that the mechanical actuation of the gate (7) can be carried out by a geared motor or by local actuation by a drive wheel.

10. Device, according to any one of claims 1 to 9, characterized in that the distance sensor (3) emits a laser beam (6) onto the barrier (4), wherein when the beam (6) comes into contact with the concave surface of the barrier (4), it is possible to measure the change in the angular movement of the gate (7).

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