Single-bin double-track ore loading system

Abstract

This utility model discloses a single-compartment, double-track ore loading system, including a buffer compartment, a jaw gate, a metering compartment, a flat gate, a branching chute, and a swing-flow loading chute. Primary flow control is achieved through the combination of the arc-shaped gate plate and guide plate of the jaw gate; the branching chute, in conjunction with the flap gate, completes the double-track flow diversion; and the arc-shaped gate plate of the swing-flow loading chute enables precise adjustment of the loading trajectory. The system adopts a single-compartment, double-track design, featuring a compact structure, anti-blocking properties, and high loading accuracy, making it suitable for large-scale ore loading operations.

Description

Technical Field

[0001] This utility model relates to the technical field of ore production and conveying equipment, specifically to a single-compartment double-track ore loading system. Background Technology

[0002] Traditional ore loading systems typically employ single-bin single-rail or double-bin double-rail configurations. Single-bin single-rail systems suffer from frequent upstream conveyor belt starts and stops, and the limitation of a single conveyor belt and individual hopper only being able to load ore onto a single train on one railway line, resulting in low efficiency and low equipment utilization. While double-bin double-rail systems avoid these problems, they are more complex and costly. Furthermore, existing loading systems often suffer from material blockages and uneven material distribution due to inadequate hopper structure or poor gate design, affecting loading efficiency and accuracy. Therefore, there is an urgent need for an ore loading system that combines high efficiency, anti-blockage capabilities, and precise control. Utility Model Content

[0003] In view of the problems and shortcomings of the existing technology, this utility model provides a single-compartment double-track ore loading system.

[0004] The technical solution of this utility model is as follows:

[0005] The single-compartment, double-track ore loading system includes a buffer compartment, a jaw gate, a metering compartment, a flat gate, a branch chute, and a swing flow loading chute.

[0006] The buffer silo has a feed inlet at the top and multiple outlets at the bottom. A jaw gate is installed at each outlet. The jaw gate includes an inner chute, two symmetrically arranged arc-shaped gates, and a guide plate. The inner chute is connected to the buffer silo, and the arc-shaped gates are opened by a hydraulic drive mechanism to allow the ore to fall into the metering bin. A guide plate is installed in the middle of the bottom outlet, which divides the inner chute outlet into two gate openings. The two arc-shaped gates correspond to the positions of the two gate openings.

[0007] The bottom outlet of the quantitative bin is connected to a flat gate, and the outlet of the flat gate is connected to a branch chute. The lower part of the branch chute has symmetrical branches to divert ore, and the upper part is equipped with a flap gate to cut the ore flow branches.

[0008] The swing flow loading chute is connected to the ends of the two symmetrical branches of the bifurcated chute and is used to guide the ore downward into the transport vehicle.

[0009] Furthermore, a vertical connecting surface is provided on one side of the two arc-shaped gates, and the height of the vertical connecting surface is 0.4-0.5 times the radius of the arc-shaped gate.

[0010] Furthermore, the oscillating flow loading chute is connected to the arc-shaped loading gate through an opening mechanism. The arc-shaped loading gate is inserted into the oscillating flow loading chute from the side, and the insertion depth is adjusted by the opening mechanism to adjust the size of the unloading outlet.

[0011] The arc-shaped loading gate is an arc-shaped plate structure with the lower hinge point of the swing arm as the center.

[0012] The opening mechanism includes a hydraulic actuator and a rocker arm. The fixed end of the hydraulic actuator and the lower end of the rocker arm are both hinged to the swing flow loading chute, and the hinge points are located on the side adjacent to the arc-shaped loading gate. The free extension end of the hydraulic actuator is hinged to the middle of the rocker arm to drive the rocker arm to rotate. The upper part of the rocker arm is connected to and drives the arc-shaped loading gate to swing around the hinge point at the lower end of the rocker arm to control the depth of insertion into the swing flow loading chute.

[0013] The swing arm consists of two parts, symmetrically arranged on both sides of the arc-shaped loading gate, connected at the top by a crossbeam, with the outer end of the arc-shaped loading gate connected to the middle of the crossbeam.

[0014] Furthermore, the buffer chamber has a conical structure with wear-resistant lining plates on the inner wall, and its bottom outlet is connected to the inner chute flange of the jaw gate.

[0015] Furthermore, the flat gate of the quantitative silo is driven by a hydraulic cylinder, and the flap gate is rotated bidirectionally by a hydraulic cylinder.

[0016] Furthermore, the bottom of the inner chute is also equipped with a guide plate, which divides the outlet of the inner chute into two gate openings, with two arc-shaped gate plates corresponding to the positions of the two gate openings respectively.

[0017] Furthermore, the two branch chutes of the bifurcated chute have an inclination angle of 45°-60°, and their inner walls are covered with a high-polymer wear-resistant coating.

[0018] The beneficial effects of this utility model are:

[0019] 1) Improved loading efficiency: The design of a single conveyor belt, a single metering bin, and a branched chute enables dual-rail operation, allowing loading of ore materials onto two trains on two different railways using only one metering bin. This solves the problems of frequent upstream conveyor belt starts and stops and low loading efficiency in single-bin, single-rail systems, as well as the problems of complex and high construction costs associated with dual-bin, dual-rail systems. It significantly shortens loading time, improves operational efficiency, and reduces construction investment costs.

[0020] 2) Precise flow control: The combined use of jaw gates, flat gates, and flap gates can precisely control the flow of ore and ensure the accuracy of loading.

[0021] 3) Extended service life: First, the design of the jaw gate effectively allows for the passage of larger ores without easily getting stuck. In contrast, flat gates are sensitive to material size; large pieces of ore can easily get stuck at the gate edges, leading to seal failure or motor overload. Second, the jaw gate's arc-shaped gate structure disperses wear through sliding friction between the material and the gate, making it particularly suitable for frequent operation with high-hardness, large ores. Compared to flat gates, whose flat structure is easily impacted by ore, resulting in faster wear on edges and sealing surfaces, jaw gates have a longer service life. Third, the jaw gate achieves dynamic sealing through a tight fit between the arc-shaped gate and the hopper opening, maintaining good sealing even with small amounts of residual particles, reducing leakage. Furthermore, the arc-shaped motion can break up material bridging, reducing the risk of blockage.

[0022] 4) Pallet gates open by rotation or arc motion, with less resistance, requiring less power from the drive unit (such as a hydraulic cylinder or motor) and consuming less energy.

[0023] 5) The design of the guide plate and the arc gate of the swing flow loading chute effectively buffers the falling speed and flow of ore and guides the ore flow, avoiding the problems of material accumulation and blockage. Attached Figure Description

[0024] Figure 1 A front view of an embodiment of a single-bin, dual-rail ore loading system;

[0025] Figure 2 Left view of an embodiment of a single-compartment, dual-rail ore loading system;

[0026] Figure 3 This is a schematic diagram of the bifurcated chute structure;

[0027] Figure 4 This is a schematic diagram of the structure of a palatal gate;

[0028] Figure 5 for Figure 4 Left view of a jaw gate;

[0029] Figure 6 A 3D view of the oscillating flow loading chute;

[0030] The components represented by the reference numerals in the diagram are:

[0031] 1. Buffer chamber; 2. Jaw gate; 3. Metering chamber; 4. Flat gate; 5. Flip gate; 6. Branching chute; 7. Swing flow loading chute; 8. Transport vehicle; 21. Inner chute; 22. Arc-shaped gate; 23. Guide plate; 71. Opening mechanism; 72. Arc-shaped loading gate; 711. Hydraulic actuator; 712. Swing rod. Detailed Implementation

[0032] The technical means adopted to achieve the intended purpose of this utility model will be further described below with reference to the accompanying drawings of the embodiments of this utility model.

[0033] Example

[0034] See Figure 1 and Figure 2 The single-compartment double-track ore loading system includes a basic frame and a buffer compartment 1, a jaw gate 2, a quantitative compartment 3, a flat gate 4, a branch chute 6, and a swing flow loading chute 7, all mounted on the basic frame.

[0035] The buffer silo 1 has a feed inlet at the top and multiple outlets at the bottom. A jaw gate 2 is installed at each outlet. The jaw gate 2 includes an inner chute 21, two symmetrically arranged arc-shaped gate plates 22, and a guide plate 23. The inner chute (21) is connected to the buffer silo 1, and a hydraulic drive mechanism controls the arc-shaped gate plates 22 to open, allowing the ore to fall into the metering silo 3. A guide plate 23 is installed in the middle of the bottom outlet, dividing the outlet of the inner chute 21 into two gate openings. The two arc-shaped gate plates 22 correspond to the positions of the two gate openings. The buffer silo 1 has a conical structure with wear-resistant liners on its inner wall. Its bottom outlet is connected to the flange of the inner chute 21 of the jaw gate 2.

[0036] Figure 4 The arc-shaped gate 22 is an arc-shaped plate corresponding to the gate opening at the bottom of the inner chute. Its two sides are hinged to the upper part of the inner chute via fan-shaped plates, and its bottom side is hinged to the telescopic end of the hydraulic drive element. The fixed end of the hydraulic drive element is hinged to the crossbeam of the foundation frame. The hydraulic drive element drives the two arc-shaped gates to open outwards or close inwards. When open, the ore material enters the metering bin for weighing and metering. The opening size can be controlled by the hydraulic drive unit.

[0037] Furthermore, the closed portion of the arc-shaped gate 22 is provided with a vertical closing surface, and the ratio of the height of the vertical closing surface to the radius of the arc-shaped gate 22 is 0.4-0.5, preferably 0.46. The arc-shaped gate 22 of the jaw gate 22 is driven by a hydraulic cylinder, and its specially designed vertical closing surface forms a double seal when closed, ensuring both sealing performance and reducing material compression.

[0038] See Figure 4 and Figure 5 The guide plate 23 is located in the middle of the bottom outlet of the inner chute 21 and between two arc-shaped gates 22. It is parallel to the vertical closing surface of the two arc-shaped gates that are closed to each other, and has a downward inclined guide surface, which facilitates the ore material to enter the quantitative bin 3 through the outlets on both sides of the guide plate 23, effectively decomposes the impact force of the falling ore, and reduces material accumulation.

[0039] See Figure 1 and Figure 2The bottom outlet of the quantitative bin 3 is connected to the flat gate 4, and the outlet of the flat gate 4 is connected to the bifurcated chute 6.

[0040] See Figure 3 The bifurcated chute 6 has symmetrical branches at the bottom to divert ore, and an internal flap gate 5 at the top to cut off the ore flow branches. The flat gate 4 of the metering bin 3 is driven by a hydraulic cylinder, and the flap gate 5 is bidirectionally flipped by a hydraulic cylinder. The inclination angle of the two branches of the bifurcated chute 6 is 45°-60°, and the inner wall is covered with a high-polymer wear-resistant coating.

[0041] See Figure 1 and Figure 2 The swing flow loading chute 7 is connected to the ends of the two symmetrical branches of the bifurcated chute 6 and is used to guide the ore downward into the transport vehicle 8.

[0042] See Figure 6 The swing flow loading chute 7 is connected to the arc-shaped loading gate 72 through the opening mechanism 71. The arc-shaped loading gate 72 is inserted into the swing flow loading chute 7 from the side, and the insertion depth is adjusted by the opening mechanism 71 to adjust the size of the unloading outlet.

[0043] The arc-shaped loading gate 72 is a fan-shaped arc structure with the lower hinge point of the swing rod 712 as the center. The opening mechanism 71 includes a hydraulic actuator 711 and a swing rod 712. The fixed end of the hydraulic actuator 711 and the lower end of the swing rod 712 are both hinged to the swing flow loading chute 7, and the hinge points are all located on the side adjacent to the arc-shaped loading gate 72. The free extension end of the hydraulic actuator 711 is hinged to the middle of the swing rod 712 to drive the swing rod 712 to rotate. The upper part of the swing rod 712 is connected to and drives the arc-shaped loading gate 72 to swing around the lower hinge point of the swing rod 712 to control the depth of insertion into the swing flow loading chute 7.

[0044] The cross-section of the swing flow loading chute 7 is a parallelogram. The width of the arc-shaped loading gate 72 is slightly smaller than the width of the swing flow loading chute 7. There are two swing rods 712, which are symmetrically arranged on both sides of the arc-shaped loading gate 72. The top is connected by a crossbeam, and the outer end of the arc-shaped loading gate 72 is connected to the middle of the crossbeam.

[0045] The single-compartment double-track ore loading system of this utility model also includes a control system that integrates a radar level gauge and a pressure sensor to adjust the opening degree of the jaw gate 2 and the angle of the arc loading gate 72 in real time.

[0046] During operation, after initial buffering in buffer bin 1, the primary flow rate into quantitative bin 3 is precisely controlled by opening multiple jaw gates 2 at the bottom of buffer bin 1 individually or simultaneously, avoiding frequent start-stop cycles of the belt conveyor above buffer bin 1. Flat gate 4 releases ore according to a set quantity, which then enters the branch chute 6 via a flip gate 5, achieving dual-track loading. The swing flow loading chute 77 adjusts the outlet cross-sectional area via an arc-shaped loading gate 72, ensuring the ore falls into the transport vehicle 8 at a suitable flow rate and velocity. The entire process, through multi-stage flow regulation and dual-track diversion, achieves efficient and precise dual-track loading within a single-bin system.

[0047] The above description represents a preferred embodiment of the present invention. However, the present invention is not limited to the above-described embodiments and examples. Within the scope of knowledge possessed by those skilled in the art, all variations, equivalent substitutions, and improvements made without departing from the concept of the present invention should be included within the protection scope of the present invention.

Claims

1. A single-compartment double-track ore loading system, including a buffer compartment (1), a jaw gate (2), a quantitative compartment (3), a flat gate (4), a branch chute (6), and a swing flow loading chute (7); characterized in that The buffer silo (1) has a feed inlet at the top and multiple outlets at the bottom. A jaw gate (2) is installed at the outlet. The jaw gate (2) includes an inner chute (21), two symmetrically arranged arc-shaped gates (22), and a guide plate (23). The inner chute (21) is connected to the buffer silo (1), and the arc-shaped gates (22) are opened by a hydraulic drive mechanism to allow the ore to fall into the metering silo (3). The bottom outlet of the quantitative bin (3) is connected to a flat gate (4), and the outlet of the flat gate (4) is connected to a branch chute (6). The lower part of the branch chute (6) has symmetrical branches to divert ore, and the upper part is equipped with a flap gate (5) to cut the ore flow branches. The swing flow loading chute (7) is connected to the ends of the two symmetrical branches of the bifurcated chute (6) and is used to guide the ore downward into the transport vehicle (8).

2. The system of claim 1, wherein, The swing flow loading chute (7) is connected to the arc-shaped loading gate (72) through the opening mechanism (71). The arc-shaped loading gate (72) is inserted into the swing flow loading chute (7) from the side, and the insertion depth is adjusted by the opening mechanism (71) to adjust the size of the unloading outlet.

3. The system of claim 2, wherein, The arc-shaped loading gate (72) is an arc-shaped plate structure with the lower hinge point of the swing rod (712) as the center.

4. The system of claim 3, wherein, The opening mechanism (71) includes a hydraulic actuator (711) and a rocker arm (712). The fixed end of the hydraulic actuator (711) and the lower end of the rocker arm (712) are both hinged to the swing flow loading chute (7), and the hinge points are all located on the side adjacent to the arc-shaped loading gate (72). The free extension end of the hydraulic actuator (711) is hinged to the middle of the rocker arm (712) to drive the rocker arm (712) to rotate. The upper part of the rocker arm (712) is connected to and drives the arc-shaped loading gate (72) to swing around the lower hinge point of the rocker arm (712) to control the depth of insertion into the swing flow loading chute (7).

5. The system of claim 4, wherein, The swing arm (712) has two parts, which are symmetrically arranged on both sides of the arc-shaped loading gate (72). The top is connected by a crossbeam, and the outer end of the arc-shaped loading gate (72) is connected to the middle of the crossbeam.

6. The system of claim 1, wherein, The buffer chamber (1) has a conical structure with wear-resistant lining plates on the inner wall, and its bottom outlet is connected to the flange of the inner chute (21) of the jaw gate (2).

7. The system of claim 1, wherein, The flat gate (4) of the quantitative silo (3) is driven by a hydraulic cylinder, and the flap gate (5) of the bifurcated chute is rotated in both directions by a hydraulic cylinder.

8. The system according to claim 1, characterized in that, The two branches of the bifurcated chute (6) have an inclination angle of 45°-60° and their inner walls are covered with a high-polymer wear-resistant coating.

9. The system according to claim 1, characterized in that, The bottom of the inner chute (21) is also provided with a guide plate (23), which divides the outlet of the inner chute (21) into two gates, and the two arc-shaped gates (22) correspond to the positions of the two gates respectively.

10. The system of claim 1, wherein, The two arc-shaped gates (22) have a vertical mating surface on one side opposite to each other, and the height of the vertical mating surface is 0.4-0.5 times the radius of the arc-shaped gate.

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