A type of ore sorting and crushing device

Abstract

This invention discloses an ore sorting and crushing device, relating to the field of ore mining and processing technology, aiming to solve the core technical problems existing in current ore processing equipment. Currently, most existing ore processing equipment adopts a separate crushing and sorting structure, requiring two independent sets of equipment and transfer devices. This not only increases equipment, labor, and energy costs but also easily leads to resource waste, environmental pollution, and low efficiency. Even some integrated equipment suffers from problems such as screen blockage, low sorting accuracy, and unstable operation due to unreasonable sorting structures. Therefore, there is an urgent need for an ore sorting and crushing device that integrates crushing and sorting functions, has a compact structure, stable operation, and can improve processing efficiency and sorting accuracy to meet the industry's processing needs.

Description

Technical Field

[0001] This invention relates to the field of ore mining and processing technology, specifically to an ore sorting and crushing device. Background Technology

[0002] In the field of ore mining and processing, ore crushing and sorting are indispensable core processes, and their processing efficiency and quality directly affect the effect of subsequent deep processing and resource utilization. Currently, most existing ore processing equipment adopts a separate crushing and sorting structure, that is, the ore is first crushed to a certain particle size by crushing equipment, and then the crushed ore is transferred to sorting equipment for grading. This separate operation method has obvious technical defects and is also a core technical problem that urgently needs to be solved in the industry.

[0003] Existing separate processing equipment not only requires investment in two independent sets of equipment, resulting in high equipment purchase and installation costs, but also necessitates additional transfer devices, increasing manpower and energy consumption. Furthermore, the transfer process easily causes ore to scatter, leading to resource waste and environmental dust pollution. In addition, the transfer process prolongs the ore processing cycle, reduces overall processing efficiency, and makes it difficult to meet the needs of large-scale continuous ore processing.

[0004] Even with some attempts to integrate crushing and sorting, problems such as poor sorting efficiency and unstable operation persist. Their sorting structures often use fixed screens, which allow ore to accumulate on the screen surface, leading to screen blockage and hindering efficient screening. Furthermore, they struggle to accurately classify ores of different particle sizes, impacting sorting quality. Therefore, designing an ore processing device that integrates crushing and sorting functions, has a compact structure, operates stably, and improves processing efficiency and sorting accuracy has become a pressing technical challenge in the current ore processing field. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an ore sorting and crushing device.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an ore sorting and crushing device, comprising a shell, a pair of crushing rollers rotatably mounted on the inner top of the shell, and a pair of motors fixedly mounted on the outside of the shell, the output ends of the two motors being fixedly connected to one end of the two crushing rollers respectively, characterized in that: a plurality of sorting screen plates are rotatably mounted inside the shell, the plurality of sorting screen plates are sequentially distributed in the height direction of the shell, the center of the sorting screen plates is rotatably connected to the shell, and a movable strip is installed at both ends of each sorting screen plate, one end of the movable strip extending into the interior of the sorting screen plate, and an elastic element is provided between one end of the movable strip and the sorting screen plate, the elastic element ensuring that the other end of the movable strip always fits against the inner surface of the shell;

[0007] The outer shell is provided with multiple discharge ports. Each sorting screen plate has a discharge port at both ends along its length. When one end of the sorting screen plate is rotated to the lowest point, the discharge port is located above the end of the sorting screen plate.

[0008] Two adjacent sorting screens are connected by multiple connectors, which enable the two adjacent sorting screens to rotate synchronously.

[0009] Inside the outer shell, below the two crushing rollers, a guide bucket is fixedly installed. Inside the outer shell, a guide channel is rotatably installed. The guide channel is fixedly connected to the bottom of the guide bucket via a flexible metal plate. On the outside of the outer shell, a drive assembly is installed, which enables the guide channel to swing repeatedly.

[0010] Preferably, a plurality of ball bearings are rotatably mounted on the other end of the movable strip.

[0011] Preferably, the elastic element is a spring.

[0012] Preferably, the connecting member is a steel wire rope, and steel wire ropes are provided at both ends of the sorting screen plate along its length.

[0013] Preferably, the drive assembly includes a gear, a rack, and an electric telescopic rod; the gear is fixedly mounted on one end of the guide channel, the fixed end of the electric telescopic rod is fixedly mounted on the outer surface of the housing, one end of the rack is fixedly connected to the movable end of the electric telescopic rod, and the gear and rack are in a meshing state.

[0014] Compared with the prior art, the present invention provides an ore sorting and crushing device, which has the following beneficial effects:

[0015] 1. This device integrates crushing and sorting functions into one unit, eliminating the need for additional sorting equipment and significantly saving on equipment investment and installation space. The crushing roller efficiently crushes ore, while the guide bucket and guide channel, along with the drive assembly, ensure uniform ore distribution. Multiple synchronously rotating sorting screens achieve grading and sorting, with screen aperture sizes decreasing from top to bottom, accurately separating ores of different particle sizes. Movable bars, springs, and ball bearings ensure flexible and stable rotation of the sorting screens, reducing wear and extending the device's service life.

[0016] 2. This device boasts high sorting efficiency and precise sorting results. The guide channel, driven by a oscillating drive assembly, ensures the ore is evenly distributed on both sides of the sorting screen. The weight difference drives the screen to rotate reciprocally, causing the ore to move at high frequency, ensuring that ore meeting the particle size requirements passes through the screen smoothly and preventing screen clogging. Steel wire ropes enable synchronized rotation of multiple screens, guaranteeing consistent grading.

[0017] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it according to the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Specific embodiments of the present invention are given in detail below with reference to the accompanying drawings. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure in this invention;

[0021] Figure 3 This is a schematic diagram of the structure of the guide bucket, guide channel, metal flexible plate and drive assembly in this invention;

[0022] Figure 4 This is a schematic diagram of the structure of the sorting sieve plate, steel wire rope, and movable bar in this invention;

[0023] Figure 5 This is a schematic diagram of the disassembled structure of the sorting sieve plate and the movable bar in this invention.

[0024] In the diagram: 1. Outer shell; 2. Crushing roller; 3. Sorting screen plate; 4. Guide hopper; 5. Guide channel; 6. Soft metal plate; 7. Gear; 8. Rack; 9. Electric telescopic rod; 10. Wire rope; 11. Movable bar; 12. Spring; 13. Ball bearing; 14. Discharge pipe. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-5 The principles and features of the present invention are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of the invention. The invention is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.

[0026] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] The core structure of this ore sorting and crushing device includes an outer shell 1. The outer shell 1 serves as the mounting carrier for the entire device, providing stable installation space and protection for all internal components. It is constructed entirely of high-strength, wear-resistant steel, capable of withstanding the impact and wear generated during ore crushing, ensuring long-term stable operation. A pair of crushing rollers 2 are rotatably mounted on the inner top of the outer shell 1. These rollers feature a wear-resistant toothed surface design, effectively enhancing the gripping and crushing effect on the ore. The two rollers 2 are parallel to each other, and their gap can be finely adjusted according to the required ore particle size. To drive the rotation of the crushing rollers 2, a pair of motors are fixedly installed outside the outer shell 1. The output ends of the two motors are fixedly connected to one end of each of the two crushing rollers 2. The motors employ a variable frequency speed control design, allowing flexible adjustment of the roller speed according to the ore hardness and crushing requirements, ensuring crushing effect while reducing energy consumption.

[0029] Inside the outer casing 1, a guide hopper 4 is fixedly installed below the crushing rollers 2. The guide hopper 4 has a funnel-shaped structure, with its top opening corresponding to the bottom of the two crushing rollers 2 and its bottom tapering. It is used to receive the ore crushed by the crushing rollers 2 and guide the ore to prevent it from scattering directly into various parts of the device, ensuring that the ore can enter the subsequent sorting structure in an orderly manner. Inside the outer casing 1, a guide channel 5 is rotatably installed below the guide hopper 4. Its top end is fixedly connected to the bottom end of the guide hopper 4 by a flexible metal plate 6. The flexible metal plate 6 has good flexibility and wear resistance, which can not only achieve a sealed connection between the guide hopper 4 and the guide channel 5 to prevent ore leakage, but also accommodate the swinging movement of the guide channel 5 without affecting its normal operation.

[0030] To achieve the repeated oscillation of the guide channel 5, a drive assembly is installed on the outside of the outer casing 1. This drive assembly includes a gear 7, a rack 8, and an electric telescopic rod 9. The gear 7 is fixedly mounted on one end of the guide channel 5 and rotates synchronously with it. The fixed end of the electric telescopic rod 9 is fixedly mounted on the outer surface of the outer casing 1 and has a telescopic structure; its extension stroke can be adjusted as needed. One end of the rack 8 is fixedly connected to the movable end of the electric telescopic rod 9, and the teeth of the rack 8 are engaged with the gear 7. When the electric telescopic rod 9 is activated, its movable end drives the rack 8 to perform reciprocating linear motion. The rack 8, through meshing, drives the gear 7 to rotate alternately in both directions, thereby causing the guide channel 5 to oscillate repeatedly within a fixed angle range, providing power for the subsequent uniform separation of ore.

[0031] Inside the outer casing 1, multiple sorting screens 3 are rotatably mounted below the guide channel 5. These screens 3 are evenly distributed along the height of the outer casing 1, with a certain spacing between adjacent screens 3, for classifying and separating ores of different particle sizes. The center of each screen 3 is rotatably connected to the outer casing 1, allowing it to rotate around its central axis. The screen aperture size of each screen 3 decreases from top to bottom. The apertures of the upper screen 3 are used to screen larger particle sizes, while the apertures of the lower screen 3 are used to screen smaller particle sizes, thus achieving ore classification and screening.

[0032] To ensure the stability of the sorting screen plate 3 during rotation and to guarantee its fit with the inner surface of the outer casing 1, movable strips 11 are installed at both ends of each sorting screen plate 3. One end of the movable strip 11 extends into the interior of the sorting screen plate 3, and an elastic element is provided between the movable strip 11 and the sorting screen plate 3. In this embodiment, the elastic element is a spring 12, which is always in a compressed state. Under the elastic force of the spring 12, the other end of the movable strip 11 is always in contact with the inner surface of the outer casing 1. To reduce the friction between the movable strip 11 and the inner surface of the outer casing 1, multiple ball bearings 13 are rotatably installed on the other end of the movable strip 11. The ball bearings 13 roll in contact with the inner surface of the outer casing 1, converting sliding friction into rolling friction, significantly reducing frictional resistance, ensuring that the sorting screen plate 3 can rotate flexibly, reducing component wear, and extending the service life of the device.

[0033] To achieve synchronous rotation of multiple sorting screen plates 3, adjacent sorting screen plates 3 are connected by multiple connectors. In this embodiment, the connector is a steel wire rope 10. A steel wire rope 10 is provided at both ends of the length direction of the sorting screen plate 3. The two ends of the steel wire rope 10 are fixedly connected to the corresponding ends of the two adjacent sorting screen plates 3, so that the multiple sorting screen plates 3 can maintain synchronization when rotating, ensuring the consistency and stability of grading and sorting, and avoiding the situation where a single sorting screen plate 3 gets stuck or rotates asynchronously, which would affect the sorting effect.

[0034] To facilitate the discharge of sorted ore from the device, multiple discharge ports are provided on the outer casing 1. Each sorting screen plate 3 has a discharge port at both ends along its length, with the positions of the discharge ports matching the ends of the sorting screen plate 3. When one end of the sorting screen plate 3 is rotated to its lowest point, the discharge port is located above the end of the sorting screen plate 3, allowing the ore screened on the sorting screen plate 3 to slide smoothly into the discharge port under its own gravity. A discharge pipe 14 is fixedly installed at each discharge port. The discharge pipe 14 adopts an inclined design, with one end fixedly connected to the discharge port and the other end extending to the outside of the outer casing 1, used to guide the sorted ore to a designated collection container, realizing the classified collection of ore.

[0035] The working process of this ore sorting and crushing device is described in detail below: The ore to be crushed is fed into the interior of the outer shell 1 through the feed port at the top of the outer shell 1. The two motors outside the outer shell 1 are started, and the motors drive the two crushing rollers 2 to rotate relative to each other. The ore falls between the two crushing rollers 2 and is crushed into particles of different sizes under the squeezing and shearing action of the crushing rollers 2. The crushed ore first falls into the two guide hoppers 4. Under the guidance of the guide hoppers 4, the ore smoothly enters the guide channel 5. At this time, the electric telescopic rod 9 in the drive assembly is started. The movable end of the electric telescopic rod 9 drives the rack 8 to perform reciprocating linear motion. The rack 8 drives the meshing gear 7 to rotate alternately forward and backward, thereby driving the guide channel 5 to swing repeatedly at a fixed angle. During the swinging process, the guide channel 5 evenly sends the ore inside to different positions on the uppermost sorting screen plate 3, so that the ore falling on the sorting screen plate 3 is distributed on both sides of the rotation axis of the sorting screen plate 3.

[0036] When the weight of the ore on both sides of the rotating shaft of the sorting screen plate 3 is different, the sorting screen plate 3 will rotate towards the heavier side. The frequent oscillation of the guide channel 5 causes the ore to fall to different positions on the sorting screen plate 3, resulting in a continuous change in the weight on both sides of the rotating shaft of the sorting screen plate 3. This allows the sorting screen plate 3 to rotate repeatedly in different directions. The repeated rotation of the sorting screen plate 3 drives the ore on it to move at high frequency, allowing ore with a particle size smaller than the screen holes of the sorting screen plate 3 to pass through the screen holes smoothly and fall onto the sorting screen plate 3 below, while ore with a particle size larger than the screen holes remains on the sorting screen plate 3. As the sorting screen plate 3 rotates repeatedly, the ore remaining on the sorting screen plate 3 will gradually move towards the end where it rotates to the lowest point, and finally enter the discharge pipe 14 from the discharge port above that end, and be discharged and collected by the discharge pipe 14.

[0037] Multiple sorting screens 3 below, connected by steel wire ropes 10, rotate synchronously with the uppermost sorting screen 3. Ore passing through the upper sorting screen 3 falls onto the lower sorting screen 3 with smaller screen openings, repeating the sorting process to achieve grading and sorting of ores of different particle sizes. Finally, ores of different particle sizes are discharged through the discharge pipes 14 at the ends of their respective sorting screens 3, completing the entire ore crushing and sorting operation.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Those skilled in the art can readily implement the present invention based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the present invention, utilizing the disclosed technical content, are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, or variations made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the present invention.

Claims

1. An ore sorting and crushing device, comprising a housing (1), wherein a pair of crushing rollers (2) are rotatably mounted on the inner top of the housing (1), and a pair of motors are fixedly mounted on the outside of the housing (1), the output ends of the two motors being fixedly connected to one end of the two crushing rollers (2), characterized in that: Multiple sorting screens (3) are rotatably installed inside the outer shell (1). The multiple sorting screens (3) are distributed sequentially in the height direction of the outer shell (1). The center of the sorting screens (3) is rotatably connected to the outer shell (1). Each sorting screen (3) has a movable strip (11) installed at both ends. One end of the movable strip (11) extends into the interior of the sorting screen (3). An elastic element is provided between one end of the movable strip (11) and the sorting screen (3). The elastic element ensures that the other end of the movable strip (11) is always in contact with the inner surface of the outer shell (1). The outer shell (1) is provided with multiple discharge ports. Each sorting screen plate (3) has discharge ports at both ends along its length. When one end of the sorting screen plate (3) is rotated to the lowest point, the discharge port is located above the end of the sorting screen plate (3). Two adjacent sorting screens (3) are connected by multiple connectors, which enable the two adjacent sorting screens (3) to rotate synchronously; Inside the outer shell (1) and below the two crushing rollers (2), a guide bucket (4) is fixedly installed. Inside the outer shell (1), a guide channel (5) is rotatably installed. The guide channel (5) is fixedly connected to the bottom end of the guide bucket (4) through a metal flexible plate (6). A drive assembly is installed on the outside of the outer shell (1), which enables the guide channel (5) to swing repeatedly.

2. The ore sorting and crushing device according to claim 1, characterized in that: Multiple ball bearings (13) are rotatably mounted on the other end of the movable bar (11).

3. The ore sorting and crushing device according to claim 1, characterized in that: The elastic element is a spring (12).

4. The ore sorting and crushing device according to claim 1, characterized in that: The connecting component is a steel wire rope (10), and steel wire ropes (10) are provided at both ends of the sorting screen plate (3) in the length direction.

5. The ore sorting and crushing device according to claim 1, characterized in that: The drive assembly includes a gear (7), a rack (8), and an electric telescopic rod (9); the gear (7) is fixedly installed on one end of the guide channel (5), the fixed end of the electric telescopic rod (9) is fixedly installed on the outer surface of the housing (1), one end of the rack (8) is fixedly connected to the movable end of the electric telescopic rod (9), and the gear (7) and the rack (8) are in a meshing state.

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