Wind power shimmy magnetic gravity separation equipment

Abstract

The utility model relates to wind power shimmy magnetic gravity separation equipment which comprises a rack, a track, a separation platform, a quick return mechanism, a magnetic system and an air knife, the track is elastically connected above the rack, the separation platform is arranged on the track in a sliding mode, a plurality of separation grooves are evenly formed in the upper surface of the separation platform, and the length direction of the separation grooves is consistent with the sliding direction of the separation platform; a quick return mechanism used for driving the separation platform to slide is arranged on one side of the rack, magnetic systems are arranged below the separation platform at intervals, each magnetic system comprises a base plate and a plurality of magnetic blocks arranged on the base plate, and magnetic poles of the magnetic blocks are alternately arranged in the sliding direction of the separation platform; a plurality of air knives are arranged above the sorting platform at intervals, high-pressure airflow is introduced into the air knives, each air knife is arranged in the length direction of the sorting groove, the multiple air knives are evenly arranged in the width direction of the sorting platform, and outlets of the air knives face the sorting groove in an inclined mode. Wind power and magnetic force are combined, dry separation of minerals is achieved, water resources are saved, and separation cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mineral sorting technology, and in particular to wind-powered oscillating magnetic gravity sorting equipment. Background Technology

[0002] Wet magnetic separation technology uses water as a medium, but for the separation of magnetite in arid and water-scarce areas, water conservation is extremely important. Therefore, dry magnetic separation equipment has been gradually applied. There are various types of dry magnetic separation equipment. One type uses a magnetic roller to generate a magnetic field. The mineral is poured onto the surface of the magnetic roller, where the magnetic substances in the mineral are adsorbed onto the surface of the magnetic roller, while the non-magnetic substances are detached from the magnetic roller due to their own gravity and the centrifugal force generated by the rotation of the magnetic roller, thus achieving separation.

[0003] For example, the weak magnetic impurity magnetic separation system and dry magnetic separator disclosed in patent publication number CN218048379U involves feeding the material to be separated into the initial position of the strong magnetic section from the feed hopper. Under the alternating magnetic pole directions, the material tumbles multiple times, with the strongly magnetic material and the weakly magnetic material adhering to the cylinder wall, while the non-magnetic material is thrown out by centrifugal force. When the mixture of strongly magnetic material and weakly magnetic material enters the weak magnetic section, the strongly magnetic material continues to tumble against the cylinder wall, while the weakly magnetic material is separated. Finally, after leaving the magnetic field area, the remaining strongly magnetic material exits the equipment.

[0004] The dry magnetic separator described above uses a main magnetic system and a secondary magnetic system on the surface of a drum-shaped magnetic yoke to capture and unload strongly and weakly magnetic minerals. However, during the movement of magnetic minerals on the yoke surface, magnetic agglomerates may form, meaning that several magnetic particles of minerals gather together to form agglomerates. These agglomerates inevitably contain non-magnetic substances, meaning that non-magnetic minerals are encapsulated by the magnetic agglomerates, resulting in poor separation efficiency. Summary of the Invention

[0005] To address the problem of unsatisfactory sorting results in conventional dry sorting equipment with magnetic roller structures, this invention provides a wind-powered oscillating magnetic gravity sorting device. This device combines wind and magnetic forces, placing the material to be sorted on a sorting platform with a rapid return characteristic. The platform vibrates up and down as it slides back and forth, effectively separating non-magnetic materials and preventing them from being entrained. Under the combined action of wind and magnetic forces, it achieves effective separation of non-magnetic and magnetic materials.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] The wind-powered oscillating magnetic gravity separation equipment includes a frame, a track, a separation platform, a quick-return mechanism, a magnetic system, and an air knife. The track is elastically connected to the top of the frame and can oscillate slightly. The separation platform is slidably mounted on the track to facilitate left-right sliding and slight oscillation. Several separation slots are evenly distributed on the upper surface of the separation platform, and the length direction of the separation slots is consistent with the sliding direction of the separation platform.

[0008] The frame is provided with a quick-return mechanism on one side for driving the sorting platform to slide, which facilitates the slow-forward and fast-return movement of the sorting platform. The magnetic system is arranged at intervals below the sorting platform. The magnetic system is connected and fixed to the frame. The magnetic system includes a base plate and several magnetic blocks arranged on the base plate. The magnetic poles of the several magnetic blocks are arranged alternately along the sliding direction of the sorting platform, which facilitates the adsorption of magnetic materials and the movement under the slow-forward and fast-return movement.

[0009] Multiple air knives with high-pressure airflow are spaced apart above the sorting platform. Each air knife is arranged along the length of the sorting trough, and the multiple air knives are evenly distributed along the width of the sorting platform. The air knife outlets are inclined towards the sorting trough to facilitate the blowing away of non-magnetic substances on the surface of the sorting platform. The two ends of the air knives are connected and fixed to the frame.

[0010] Furthermore, the track consists of two spaced-apart tracks, which improves the stability of the sorting platform's sliding motion. Each track is equipped with multiple elastic bodies underneath, and the track is elastically connected to the frame through these elastic bodies. The elastic bodies are compression springs or elastic rubber columns, which facilitate elastic vibration of the sorting platform.

[0011] Furthermore, the sorting platform has a flat plate structure, with rollers on both sides, two on each side. The rollers on each side slide along the track, improving the smoothness of the sorting platform's sliding. The sorting groove is a semi-cylindrical groove that penetrates both ends of the sorting platform.

[0012] Furthermore, the quick-return mechanism is a crank-slider mechanism controlled by a motor. The quick-return mechanism is existing technology and can realize the quick return of the sorting platform.

[0013] The cross-section of the magnetic system is smaller than that of the sorting platform. Support columns are provided on both sides of the base plate of the magnetic system downward. The magnetic system is connected and fixed to the frame through the support columns. Several magnetic blocks of the magnetic system are arranged along the sliding direction of the sorting platform. A magnetic field with an alternating NSN structure is formed between the several magnetic blocks, which promotes the flow of magnetic materials.

[0014] Furthermore, the air knife is a hollow closed cylinder with a certain length. Multiple air inlets are opened on one side of the air knife, and a long and thin air outlet is opened on the other side. The air outlet is inclined towards the sorting trough, and the air outlet is directed towards the width of the sorting platform.

[0015] The beneficial effects of this utility model through the above technical solution are:

[0016] This invention uses air as the sorting medium. Minerals are separated from magnetic materials under the combined force of wind, gravity, magnetism, vibration, and friction. The sorting platform surface has sorting troughs, which serve as channels for the magnetic materials. Under the influence of magnetic force, the reciprocating thrust of the sorting platform, and vibration, the magnetic materials overcome the wind force from the air knife and move from one end of the long, narrow sorting trough to the other.

[0017] This invention utilizes a rapid-return mechanism to drive the sorting platform in a slow-forward, fast-return motion. As a result, magnetic minerals, under the influence of the magnetic field beneath the platform, adhere tightly to it and tumble and creep along one end of the sorting trough to the other. Non-magnetic materials, under the vibration of the sorting platform, gradually protrude from the bottom of the sorting trough and are removed from the magnetic aggregates. Under the influence of the air knife and the irregular, slight swaying of the sorting platform, the non-magnetic materials move along the width of the platform and gradually detach from the magnetic agglomerates.

[0018] The sorting platform of this invention is equipped with a magnetic mineral hopper at its unloading end, into which the sorted magnetic minerals ultimately flow. A non-magnetic material hopper is located on one side of the sorting platform's width direction, into which the non-magnetic minerals swept by the air knife finally flow, thus completing the separation of magnetic and non-magnetic materials. This process utilizes a combination of dry airflow and magnetic separation. Because the sorting platform undergoes a slow-in, fast-out reciprocating motion accompanied by vertical vibration, it effectively promotes the dispersion of magnetic and non-magnetic particles, reducing magnetic agglomeration and inclusions. Attached Figure Description

[0019] Figure 1 This is a front view of the wind-powered oscillating magnetic gravity sorting device of this utility model. In the figure, arrow A indicates the feeding end of the sorting platform, arrow B indicates the unloading end of the sorting platform, and arrow C indicates the reciprocating motion direction of the sorting platform.

[0020] Figure 2 This utility model relates to a wind-powered oscillating magnetic gravity separation device. Figure 1 A breakdown diagram.

[0021] Figure 3 This is a top view of the sorting platform of the wind-powered oscillating magnetic gravity sorting device of this utility model. In the figure, arrow D indicates the flow direction of magnetic materials and arrow E indicates the flow direction of non-magnetic materials.

[0022] Figure 4 This is a schematic diagram of the magnetic system of the wind-powered oscillating magnetic gravity separation device of this utility model.

[0023] Figure 5 This is a schematic diagram of the air knife arrangement of the wind-powered oscillating magnetic gravity separation device of this utility model. In the diagram, arrow F indicates the flow direction of non-magnetic materials.

[0024] Figure 6 This is a comparison diagram of the force analysis of non-magnetic and magnetic mineral particles in the wind-powered oscillation magnetic gravity separation device of this utility model.

[0025] The attached diagram is labeled as follows: 1 frame, 2 track, 3 sorting platform, 31 sorting trough, 4 magnetic system, 41 base plate, 42 magnetic block, 5 air knife, 51 air inlet, 52 air outlet, 6 elastomer, 7 roller, 8 support column, 9 bracket. Detailed Implementation

[0026] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings:

[0027] like Figures 1-6 As shown, the wind-powered oscillating magnetic gravity sorting device includes a frame 1, a track 2, a sorting platform 3, a quick-return mechanism, a magnetic system 4, and an air knife 5. The frame 1 is the steel structural frame of the sorting device. The track 2 is elastically connected to the top of the frame 1. The track 2 consists of two spaced-apart rails. During installation, three elastic bodies 6 are installed under each track 2. The track 2 is elastically connected to the frame 1 through the elastic bodies 6. The elastic bodies 6 are compression springs or elastic rubber columns; here, compression springs are used. Under the action of the elastic bodies 6, the track 2 can move up and down and produce a certain degree of oscillation, such as... Figure 1 and Figure 2 As shown.

[0028] A sorting platform 3 is slidably mounted on track 2. The sorting platform 3 is a flat plate structure and is arranged between two tracks 2. Specifically, to enable the sliding of the sorting platform 3, rollers 7 are provided on both sides of the sorting platform 3, with two rollers 7 on each side. The two rollers 7 on each side slide along one track 2. The sorting platform 3 vibrates up and down with the track 2 while sliding back and forth through the rollers 7.

[0029] The upper surface of the sorting platform 3 is evenly provided with a plurality of sorting grooves 31, which are arranged along the width direction of the sorting platform 3. Each sorting groove 31 is a semi-cylindrical groove, and its length direction is consistent with the sliding direction of the sorting platform 3. The sorting grooves 31 penetrate both ends of the sorting platform 3. Figure 3 As shown.

[0030] To drive the sorting platform 3, a quick-return mechanism is provided on one side of the frame 1 to drive the sorting platform 3 to slide. The quick-return mechanism is not shown in the figure. The quick-return mechanism is used to achieve the slow-forward and fast-return motion of the sorting platform 3. The quick-return mechanism is a crank-slider mechanism controlled by a motor. That is, a guide rail is set separately on one side of the frame 1, and a slider slides on the guide rail. The slider is connected to the middle part of one end of the sorting platform 3. The slider, connecting rod and crank are hinged in sequence. The crank is arranged on the output shaft of the motor.

[0031] It should be noted that the quick-return mechanism here is existing technology. Patent publication numbers for two other devices—a chemical raw material oscillating screening device with a quick-return mechanism (CN205392950U) and a chemical raw material dust removal device with a quick-return mechanism (CN205392000U)—disclose the principle of this quick-return mechanism, which will not be elaborated here. The thrust applied by the quick-return mechanism causes the roller 7 to reciprocate within the track 2. Simultaneously, due to the constantly changing force on the elastic body 6 below the track 2, the elastic body 6 continuously expands and contracts, causing the track 2 and the sorting platform 3 to continuously vibrate up and down. Simultaneously, the sorting platform 3 also undergoes slight irregular oscillations in the width direction.

[0032] A magnetic system 4 is arranged at intervals below the sorting platform 3. The magnetic system 4 is connected and fixed to the frame 1. The magnetic system 4 ensures that the magnetic material flows along the surface of the sorting platform 3. The cross-section of the magnetic system 4 is smaller than that of the sorting platform 3, that is, the length and width of the magnetic system 4 are smaller than those of the sorting platform 3. The magnetic system 4 includes a base plate 41 and a plurality of magnetic blocks 42 disposed on the base plate 41. During installation, support columns 8 are provided on both sides of the base plate 41 of the magnetic system 4, and the magnetic system 4 is connected and fixed to the frame 1 through the support columns 8. The plurality of magnetic blocks 42 of the magnetic system 4 are arranged along the sliding direction of the sorting platform 3. Along the sliding direction of the sorting platform 3, the magnetic poles of the plurality of magnetic blocks 42 are arranged alternately, thereby forming a planar magnetic field with an alternating NSN structure between the plurality of magnetic blocks 42. Figure 4 As shown.

[0033] In short, along the length of the sorting platform 3, the magnetic blocks 42 are arranged in a uniform pattern with alternating opposite polarities, while along the width of the sorting platform 3, the magnetic blocks 42 have the same polarity. When the sorting platform 3 vibrates up and down, the magnetic field strength on the surface of the sorting platform 3 changes periodically in strength, that is, the magnetic field strength is different when the sorting platform 3 moves downward toward the magnetic system 4 and upward away from the magnetic system 4, making it easier for non-magnetic materials to be removed from the magnetic agglomerates.

[0034] Multiple air knives 5, each carrying a high-pressure airflow, are spaced apart above the sorting platform 3. These air knives 5 are used to agitate non-magnetic materials. Each air knife 5 is a hollow, closed cylinder of a certain length. Each air knife 5 is arranged along the length of the sorting trough 31, and multiple air knives 5 are evenly distributed along the width of the sorting platform 3. During installation, both ends of the air knife 5 are connected and fixed to the frame 1. Specifically, each end of the air knife 5 is equipped with an inverted L-shaped bracket 9, which provides stable support for the air knife 5.

[0035] The air knife 5 has its outlet angled towards the sorting tank 31. Multiple circular air inlets 51 are located on one side of the air knife 5, through which high-pressure airflow enters the sealed cavity. A long, narrow air outlet 52 is located on the other side of the air knife 5, angled towards the sorting tank 31, with the airflow direction pointing towards the width of the sorting platform 3. High-pressure air is ejected from this outlet. Figure 5 As shown, after the air is emitted from multiple air knives 5, a stable air field is formed in the width direction of the sorting platform 3, which in turn disperses the non-magnetic materials on the sorting platform 3.

[0036] The principle of this utility model is as follows: the two ends of the sorting platform 3 along its length are the feeding end and the unloading end, respectively. The mineral is fed into the sorting platform 3 from the feeding end. The magnetic material in the mineral is attracted to the upper part of the sorting platform 3 with the sorting groove 31 under the action of the magnetic field. Since the sorting platform 3 is connected to a quick-return mechanism with quick-return characteristics, and the sorting platform 3 is supported by the elastic body 6, the sorting platform 3 is caused to vibrate up and down in the process of reciprocating sliding. As a result, the magnetic material continuously flips and vibrates along the sorting groove 31. The magnetic material moves along the surface of the sorting platform 3 from the feeding end to the unloading end, thereby realizing the unloading of the magnetic material.

[0037] After high-pressure airflow is introduced into the air knife 5, it blows air onto the surface of the sorting platform 3. As the sorting platform 3 slides back and forth and vibrates up and down, non-magnetic materials gradually move continuously along the width of the sorting platform 3 under the action of air force. The non-magnetic materials eventually flow out of the sorting platform 3, thus separating from the magnetic materials. Because the magnetic materials are in a continuous tumbling and vibrating motion, the non-magnetic materials entrained in the magnetic agglomerates formed by the magnetic materials are shaken out and blown away by the air knife 5, achieving a good sorting effect.

[0038] It should be noted that non-magnetic mineral particles are subjected to gravity on sorting platform 3, while magnetic mineral particles are subjected to the combined effects of gravity and magnetic force. Therefore, the platform pressure experienced by magnetic minerals is much greater than that experienced by non-magnetic particles. Figure 6 As shown, when wind is applied horizontally to the sorting platform 3, non-magnetic mineral particles are more likely to overcome the static friction generated by the platform pressure, thus sliding. Under the relatively high pressure of the sorting platform 3, the wind has difficulty overcoming the static friction generated by the pressure, making it less likely for magnetic minerals to slide in the direction of the applied wind. Therefore, under continuous wind action, non-magnetic materials gradually detach from the minerals and move along the direction of the applied wind, thus completing the separation of magnetic and non-magnetic materials.

[0039] As non-magnetic materials gradually detach from magnetic materials, the magnetic materials adhere tightly to the surface of sorting platform 3, tumbling and creeping forward with the platform in a direction perpendicular to the wind. When sorting platform 3 reaches its foremost position, it suddenly reverses direction and rapidly retreats. Under the influence of inertia and the magnetic force of the front magnetic field, the magnetic minerals tumble and slide between themselves and sorting platform 3. When the platform retreats to the rearmost position, it slowly carries the magnetic minerals forward again. This cycle repeats, with the magnetic minerals moving from one end of sorting platform 3 to the other in a direction perpendicular to the wind.

[0040] An air knife 5 is also installed at the unloading end of the sorting platform 3. The air knife 5 is arranged along the width of the sorting platform 3. The function of the air knife 5 is to facilitate the better unloading of magnetic materials. Non-magnetic materials are unloaded under the action of gravity and the air field of the air knife 5, thus completing the sorting.

[0041] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A wind-powered oscillating magnetic gravity separation device, characterized in that, The system includes a frame (1), a track (2), a sorting platform (3), a quick-return mechanism and a magnetic system (4), and an air knife (5). The track (2) is elastically connected above the frame (1). The sorting platform (3) is slidably arranged on the track (2). Several sorting slots (31) are evenly opened on the upper surface of the sorting platform (3). The length direction of the sorting slots (31) is consistent with the sliding direction of the sorting platform (3). The frame (1) is provided with a quick-return mechanism for driving the sorting platform (3) to slide on one side. The magnetic system (4) is arranged at intervals below the sorting platform (3). The magnetic system (4) is connected and fixed to the frame (1). The magnetic system (4) includes a base plate (41) and a number of magnetic blocks (42) arranged on the base plate (41). The magnetic poles of the number of magnetic blocks (42) are arranged alternately along the sliding direction of the sorting platform (3). Multiple air knives (5) with high-pressure airflow are arranged at intervals above the sorting platform (3). Each air knife (5) is arranged along the length of the sorting groove (31), and multiple air knives (5) are evenly arranged along the width of the sorting platform (3). The outlet of the air knife (5) is inclined toward the sorting groove (31), and the two ends of the air knife (5) are connected and fixed to the frame (1).

2. The wind-powered oscillating magnetic gravity separation device according to claim 1, characterized in that, The track (2) consists of two spaced-apart tracks, with multiple elastic bodies (6) below each track (2). The track (2) is elastically connected to the frame (1) through the elastic bodies (6), which are compression springs or elastic rubber columns.

3. The wind-powered oscillating magnetic gravity separation device according to claim 2, characterized in that, The sorting platform (3) is a flat plate structure. Rollers (7) are provided on both sides of the sorting platform (3). There are two rollers (7) on each side. The rollers (7) on each side slide along the track (2). The sorting groove (31) is a semi-cylindrical groove. The sorting groove (31) passes through both ends of the sorting platform (3).

4. The wind-powered oscillating magnetic gravity separation device according to claim 1, characterized in that, The quick-return mechanism is a crank-slider mechanism controlled by a motor; The cross-section of the magnetic system (4) is smaller than that of the sorting platform (3). Support columns (8) are provided on both sides of the base plate (41) of the magnetic system (4). The magnetic system (4) is connected and fixed to the frame (1) through the support columns (8). Several magnetic blocks (42) of the magnetic system (4) are arranged along the sliding direction of the sorting platform (3). A magnetic field with an alternating NSN structure is formed between the several magnetic blocks (42).

5. The wind-powered oscillating magnetic gravity separation device according to claim 1, characterized in that, The air knife (5) is a hollow closed cylinder with a certain length. Multiple air inlets (51) are opened on one side of the air knife (5), and a long and thin air outlet (52) is opened on the other side. The air outlet (52) is inclined towards the sorting trough (31), and the air outlet (52) is directed towards the width direction of the sorting platform (3).

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