High-calcium ore silicon content intelligent screening and impurity removing device and method

Abstract

The application relates to the technical field of ore sorting, and discloses a high-calcium ore silicon content intelligent screening and impurity removing device and method. The device comprises a conveying mechanism, a silicon content detection and sorting mechanism and a leveling mechanism arranged upstream of a detection station. The leveling mechanism comprises a lifting driving assembly, a flexible flattening assembly with elastic displacement capacity and a transverse material spreading assembly driven by the same lifting movement, so that the pressure bearing part generates transverse swinging while exerting flexible vertical pressure on the stacked ore, and the stacked ore is dispersed into a single-layer conveying state suitable for detection. The silicon content detection and sorting mechanism obtains a spectral response of the single-layer ore and removes impurities according to a preset silicon content threshold. The application takes into account flexible flattening, transverse material spreading and anti-breaking without additionally arranging an independent transverse driving source, can reduce the detection blind area and mixed spectrum interference caused by ore stacking, and improves the stability and accuracy of silicon content screening and impurity removing.

Description

Technical Field

[0001] This invention belongs to the field of ore screening and intelligent sorting technology, specifically, it relates to an intelligent screening and impurity removal device and method for high-calcium ore with silicon content. Background Technology

[0002] High-calcium ores typically require screening based on their silicon impurity content before entering subsequent processing or batching stages. Existing automated sorting equipment generally uses a conveyor belt to continuously transport the ore, collects the spectral response of the ore in a detection area, and then the control system judges the ore according to a preset silicon content standard, removing unqualified ore via pneumatic actuators. This method can improve sorting speed, but the detection accuracy depends not only on the detection unit itself but is also significantly affected by the ore's distribution on the conveyor belt.

[0003] During actual conveying, ores of different particle sizes are prone to local stacking, overlapping, or jamming. When multiple pieces of ore overlap, they can obscure part of the surface to be tested and cause the detection area to receive mixed responses from multiple pieces of ore simultaneously. This can easily create detection blind spots or cause the determination of silicon content in a single piece of ore to be interfered with by adjacent ores. If fixed baffles, rigid pressure rollers, or hard pressure plates are used to forcibly reduce the ore stacking height, brittle ores may break and produce debris. This debris, if carried into the detection area by the conveyor belt, will also affect the stability of the detection.

[0004] Therefore, a device structure is needed that can perform single-layer processing of ore before spectral detection: it must apply sufficient leveling force to protruding and overlapping ores while avoiding ore breakage caused by rigid compression; simultaneously, it needs to cause lateral displacement of ores located in the upper layer or stuck in gaps, allowing them to slide into the gaps under their own weight. If separate drive mechanisms are configured for vertical flattening and lateral material distribution, it will increase structural complexity, control nodes, and energy consumption. Based on the above problems, this invention is proposed. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0006] A smart screening and impurity removal device for high-calcium ore with silicon content includes a conveying mechanism for carrying and transporting the ore, a silicon content detection and sorting mechanism disposed at the detection station of the conveying mechanism, and a leveling mechanism disposed upstream of the detection station. The silicon content detection and sorting mechanism is used to remove ore that does not meet the set conditions from the conveying path according to the silicon content judgment result of the ore. The leveling mechanism includes a lifting drive component, a flexible flattening component, and a transverse material distribution component. The flexible flattening component has a pressure-bearing part that can make vertical clearance relative to the lifting drive component and an elastic energy storage component disposed between the two. The transverse material distribution component is drivenly connected to the lifting drive component and linked with the pressure-bearing part, so that the lifting motion of the lifting drive component causes the pressure-bearing part to generate a transverse swing relative to the conveying direction while performing vertical flexible flattening of the ore, thereby dispersing the stacked ore and forming a single-layer conveying state.

[0007] In a preferred embodiment of the present invention, the lifting drive assembly includes an electric push rod and a compression cover connected to the output end of the electric push rod; the flexible flattening assembly includes a compression rod, a pressure plate, a baffle and a compression spring, the compression rod is slidably engaged with the compression cover, the baffle is disposed at one end of the compression rod located inside the compression cover, the compression spring is disposed between the compression cover and the baffle, and the pressure plate is disposed at the lower end of the compression rod.

[0008] In a preferred embodiment of the present invention, the pressure plate is rotatably connected to the compression rod, so that after the pressure plate contacts the ore, it can maintain flexible contact with the ore under the elastic pressing action of the compression spring, and swing slightly around its connection position under the drive of the transverse bulk material assembly.

[0009] In a preferred embodiment of the present invention, the transverse bulk material assembly includes a support plate that moves synchronously with the compression shroud, a corrugated groove disposed on the support plate, a slide rod disposed along the transverse guide, and a rocker arm that is linked with the pressure plate; the slide rod is provided with a protrusion that slides in cooperation with the corrugated groove and is limited to transverse movement by a guide rod; the slide rod slides in cooperation with the strip groove of the rocker arm so as to convert the vertical displacement into the transverse swing of the pressure plate when the support plate moves up and down.

[0010] In a preferred embodiment of the present invention, limiting guide components are provided on both sides of the conveying mechanism. The limiting guide components are linked with the compression cover and are configured to cause the guide plates on both sides to retract towards the inside of the conveying channel when the leveling action begins, so as to prevent unleveled ore from entering the inspection station in advance.

[0011] In a preferred embodiment of the present invention, the limiting guide assembly includes a horizontal plate, a swing arm, a rod, a plate, a fixed seat, a positioning plate, a limiting rod, and a limiting seat; one end of the swing arm is connected to a compression cover, and the other end is connected to the horizontal plate; the horizontal plate transmits displacement to the fixed seat via the rod and the plate; the positioning plate forms an interconnected inclined closed groove and a straight displacement groove; when the fixed seat moves along the inclined closed groove, it drives the guide plate to retract inward, and maintains the retracted position of the guide plate after entering the straight displacement groove.

[0012] In a preferred embodiment of the present invention, the silicon content detection and sorting mechanism includes a sorting machine, a controller, a spectral detection unit, and a pneumatic impurity removal execution unit. The spectral detection unit is used to collect the spectral response of the ore and output the detection results related to the silicon content. The controller is used to compare the detection results with a preset silicon content threshold and control the pneumatic impurity removal execution unit to remove unqualified ore exceeding the preset silicon content threshold from the conveying path.

[0013] In a preferred embodiment of the present invention, the leveling mechanism is located between the feed side of the conveyor belt body and the spectral detection unit, so that the ore undergoes flow restriction, flexible flattening and lateral material distribution in sequence before entering the spectral detection area.

[0014] As a preferred embodiment of the present invention, the present invention also discloses an intelligent screening and impurity removal method for high-calcium ore with silicon content, comprising the following steps:

[0015] Step S1: The ore to be screened is conveyed along the conveying path to the silicon content detection station; before the ore enters the silicon content detection station, a vertical flattening action that can elastically yield is applied to the ore, and the pressure-bearing part is laterally oscillating by using the same mechanical linkage as the vertical flattening action, so that the stacked ore is laterally misaligned and forms a single-layer conveying state under its own gravity.

[0016] Step S2: Collect the spectral response of the ore in the single-layer conveying state, and obtain the silicon content discrimination result based on the spectral response;

[0017] Step S3: Compare the silicon content determination result with the preset silicon content threshold, and remove the ore that does not meet the set conditions from the conveying path.

[0018] In a preferred embodiment of the present invention, before or at the beginning of the vertical flattening action, the guide plates on both sides of the conveying path are retracted inward to temporarily restrict the ore from continuing to enter the inspection station; after the flattening and lateral material distribution are completed, the guide plates are reset as the lifting drive assembly returns, and the ore with silicon content exceeding the preset threshold is removed at a fixed point by the pneumatic impurity removal execution unit.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] This invention achieves both flexible downward pressing and lateral material distribution leveling functions simultaneously using an electric push rod. The electric push rod, combined with a compression spring, forms an adaptive buffer structure. The pressure plate stops immediately upon contact with the ore, while the compression hood continuously moves downward, compressing the spring. Relying on the spring's elastic buffering force, it outputs a uniform and gentle vertical pressing pressure, abandoning the traditional rigid extrusion mode. This not only smoothly flattens protruding stacked ore but also effectively prevents high-calcium ore from cracking under pressure, eliminating slag interference with subsequent testing and impurity removal processes, reducing raw material loss, and saving production costs. Simultaneously, the downward movement of the compression hood drives the support plate, corrugated groove, slide rod, and rocker arm in a coordinated transmission, causing the pressure plate to swing slightly synchronously, applying a lateral pushing force to the stacked ore. Combined with the ore's own gravity, this allows ore stuck in gaps and multi-layered stacked ore to fully slide and return to its proper position. The leveling and dispersing effect is far superior to a single vertical pressing method. Furthermore, the entire leveling mechanism requires no additional drive components, resulting in a simplified structure, lower energy consumption, and adaptability to ore materials of different particle sizes and stacking heights, significantly improving leveling adaptability.

[0021] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0022] In the attached diagram:

[0023] Figure 1 This is a first three-dimensional schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a second three-dimensional schematic diagram of the overall structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the leveling mechanism of the present invention;

[0026] Figure 4 This is a cross-sectional structural diagram of the flexible flattening component and the transverse material distribution component of the present invention;

[0027] Figure 5 This is a schematic diagram showing the cooperation between the conveyor belt front end limiting and guiding component and the leveling mechanism of the present invention;

[0028] Figure 6 for Figure 5 A magnified schematic diagram of the structure at point A in the middle.

[0029] In the diagram: 1. Sorter; 2. Controller; 3. Conveyor belt body; 4. Electric push rod; 5. Compression cover; 6. Compression rod; 7. Pressure plate; 8. Baffle; 9. Compression spring; 10. Support plate; 11. Rocker arm; 12. Strip groove; 13. Slide rod; 14. Protrusion; 15. Wave groove; 16. Connecting frame; 17. Guide rod; 18. Horizontal plate; 19. Swing arm; 20. Insert rod; 21. Insert plate; 22. Fixed seat; 23. Guide plate; 24. Positioning plate; 25. Reinforcing member; 26. Closing groove; 27. Shifting groove; 28. Limiting rod; 29. ​​Limiting seat. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0031] Example 1:

[0032] like Figures 1 to 4 As shown, the intelligent screening and impurity removal device for high-calcium ore with silicon content in this embodiment includes a separator 1, a controller 2, a conveyor belt body 3, and a leveling mechanism disposed between the feed side of the conveyor belt body 3 and the detection area of ​​the separator 1. The separator 1 is equipped with a spectral detection unit and a pneumatic impurity removal execution unit. The controller 2 is connected to the conveyor belt body 3, the spectral detection unit, and the pneumatic impurity removal execution unit, respectively. The ore is continuously conveyed on the conveyor belt body 3 towards the separator 1, first passing through the leveling mechanism, and then entering the spectral detection area.

[0033] An electric push rod 4 is installed at the upper part of the leveling mechanism, and the output end of the electric push rod 4 is connected to a compression cover 5. A compression rod 6, capable of sliding up and down, is installed inside the compression cover 5. A baffle 8 is installed at one end of the compression rod 6 inside the compression cover 5, and a compression spring 9 is sandwiched between the baffle 8 and the compression cover 5. The lower end of the compression rod 6 is connected to a pressure plate 7. When the electric push rod 4 initially extends, the compression cover 5, the compression rod 6, and the pressure plate 7 move downwards as a whole. When the lower surface of the pressure plate 7 first contacts a locally protruding or stacked ore on the conveyor belt body 3, the pressure plate 7 is supported by the ore and stops or significantly reduces its downward movement. The electric push rod 4 continues to drive the compression cover 5 downwards, and the compression spring 9 is compressed, forming an elastic load on the pressure plate 7. Therefore, even if the ore particle size is different, the pressure plate 7 can make way through the relative sliding between the compression rod 6 and the compression cover 5, avoiding the direct application of the entire rigid stroke of the electric push rod 4 to the ore.

[0034] The transverse bulk assembly shares the same drive source as the aforementioned compression shroud 5. A support plate 10 is fixed to the side of the compression shroud 5, and a corrugated groove 15 is formed on the support plate 10. A connecting frame 16 supports the guide rod 17, and a slide rod 13 slides laterally along the guide rod 17. A protrusion 14 is provided on the slide rod 13 and is embedded in the corrugated groove 15. The lower part of the slide rod 13 slides in conjunction with a strip groove 12 on the rocker arm 11, and the rocker arm 11 is linked with the pressure plate 7. When the compression shroud 5 and the support plate 10 move downwards, the corrugated groove 15 moves vertically relative to the protrusion 14. Because the corrugated groove 15 has a transverse undulating trajectory, the protrusion 14 is forced to drive the slide rod 13 to reciprocate along the guide rod 17. The slide rod 13 then pushes the rocker arm 11 through the strip groove 12, causing the pressure plate 7 to swing laterally at a small angle around its connection point with the compression rod 6.

[0035] Therefore, while the pressure plate 7 is in contact with the ore and the compression spring 9 provides flexible vertical clamping force, the pressure plate 7 also applies alternating lateral thrust to the upper layer of ore. The upper layer of ore, stacked on top of the lower layer, slides under the combined action of the lateral thrust and its own weight, gradually falling into the gaps between the lower layers of ore, disrupting the original overlapping state and ultimately forming a more single-layered material distribution before entering the inspection area. This mechanical linkage utilizes only one lifting action of the electric push rod 4 to simultaneously complete flexible flattening and lateral material distribution, eliminating the need for a separate lateral motor or cylinder.

[0036] Example 2

[0037] like Figure 5 and Figure 6 As shown, based on Embodiment 1, this embodiment adds limiting and guiding components to both sides of the conveyor belt body 3 to control the instantaneous feed rate during the leveling stage. The side wall of the compression shroud 5 is connected to the horizontal plate 18 via a swing arm 19. The limiting rod 28 on the rear side of the horizontal plate 18 slides with the limiting seat 29 to limit the movement direction of the horizontal plate 18. The side of the horizontal plate 18 transmits displacement to the fixed seat 22 via the insert rod 20, the insert plate 21, and the fixed seat 22 is connected to the guide plate 23. The positioning plate 24 is provided with a guide groove continuously formed by an inclined closing groove 26 and a straight displacement groove 27. The guide part of the fixed seat 22 cooperates with the guide groove.

[0038] When the electric push rod 4 begins to drive the compression cover 5 downward, the swing arm 19 moves the horizontal plate 18, and the fixed seat 22 first moves along the inclined closed groove 26. Since the closed groove 26 has a lateral component relative to the direction of movement of the fixed seat 22, the fixed seats 22 on both sides drive the corresponding guide plates 23 to retract towards the inside of the conveying channel, thereby limiting the continued large-scale entry of subsequent ore during the contact and sorting of the current batch of ore by the pressure plate 7. The fixed seat 22 then enters the straight shift groove 27, and the lateral position of the guide plates 23 remains basically unchanged, providing a relatively stable sorting area for the flexible flattening and lateral swinging of the pressure plate 7. After the electric push rod 4 completes the leveling and returns, the linkage components move along opposite trajectories, the fixed seat 22 returns from the straight shift groove 27 to the inclined closed groove 26, the guide plates 23 gradually reset outward, and the conveying channel reopens. This structure allows the flow-limiting action and the leveling action to automatically coordinate according to the mechanical stroke without the need for a separate flow-limiting actuator.

[0039] Example 3

[0040] This embodiment illustrates the screening and impurity removal process of this device. First, the high-calcium ore to be screened is fed onto the conveyor belt body 3, which is then controlled to run at a speed matching the spectral detection cycle. When the ore enters the leveling area, the controller 2 drives the electric push rod 4 to perform a downward stroke. The limiting and guiding assembly first restricts the flow of subsequent ore, and then the pressure plate 7 contacts the ore in the current leveling area. If local stacking exists, the compression spring 9 is compressed and provides a flexible vertical force to the pressure plate 7; simultaneously, the wave groove 15 drives the slide rod 13 to move laterally back and forth, causing the pressure plate 7 to swing slightly, pushing the upper layer of ore to misalign and fall into the gap.

[0041] After leveling, the electric push rod 4 returns, the pressure plate 7 lifts, the limit guide assembly resets, and the sorted ore continues to move towards the detection area of ​​the separator 1. The spectral detection unit collects the spectral response of individual or highly separated pieces of ore and outputs the silicon content detection result according to the pre-established silicon content calibration relationship. Here, the spectral detection object is the spectral response obtainable on or near the surface of the ore; this invention does not rely on unfounded direct scanning of the ore's interior. The controller 2 compares the detection result with the preset silicon content threshold. When the detection result of the target ore does not meet the set conditions, the controller 2 controls the corresponding pneumatic impurity removal execution unit to operate according to the conveying speed and target position, so as to blow the target ore away from the main conveying path and into the waste collection area; the ore that meets the conditions continues to be conveyed by the conveyor belt body 3 to the qualified material outlet.

[0042] In the above process, the purpose of the leveling mechanism is not to change the ore composition, but to improve the spatial distribution of the ore when it enters the spectral detection area. By reducing the stacking rate and the degree of obstruction, signal mixing caused by multiple pieces of ore being in the detection field of view at the same time can be reduced, making the subsequent silicon content determination more stable. The flexible clearance provided by the compression spring 9 and the small swing of the pressure plate 7 are both mechanical leveling actions and do not change the detection principle of the spectral detection unit itself.

[0043] In the above embodiments, the electric push rod 4 can be replaced by other actuators that can provide controlled linear lifting motion; the compression spring 9 can be replaced by other elastic energy storage components; the specific undulation curve, swing amplitude and pressure plate 7 size of the wave groove 15 can be designed according to the ore particle size range and the width of the conveyor belt. As long as it can generate a lateral material distribution effect when the pressure part flexibly contacts the ore, it is an equivalent implementation of the concept of the present invention.

[0044] The method of using the intelligent screening and impurity removal device for high-calcium ore with silicon content according to the present invention is as follows:

[0045] The operator first places the ore on the conveyor belt body 3, which then transports the ore into the separator 1. The high-precision spectral detection sensor inside the separator 1 scans the internal composition of the ore in real time, quickly collects the silicon content data, and transmits it synchronously to the built-in central controller. The controller quickly compares and analyzes the real-time detection data with the system's preset qualified silicon content standard threshold to accurately determine whether the silicon content of the ore exceeds the standard. At the same time, it locates the real-time position of the ore that exceeds the standard. Then, the controller 2 immediately sends a control signal to the corresponding pneumatic impurity removal nozzle. After receiving the signal, the nozzle instantly sprays out a high-pressure airflow, accurately blowing the unqualified ore with excessive silicon content away from the conveyor track and causing it to fall into the waste collection bin. Meanwhile, the qualified ore with the acceptable silicon content continues to be transported forward with the conveyor belt body 3 and is finally discharged smoothly from the discharge end of the separator 1.

[0046] During the process of conveying the ore into the separator 1, it is also necessary to level it through the leveling component to ensure that it can be conveyed in a single layer on the conveyor belt body 3. This avoids the stacking of ore and the overlapping of multiple layers causing blind spots in the scanning of the spectral detection sensor, eliminates the problem of incomplete detection of a single piece of ore and distortion of detection data when multiple pieces of ore are superimposed, and ensures that the subsequent silicon content detection results are accurate.

[0047] First, the operator starts the electric push rod 4. At this time, the electric push rod 4 drives the bottom compression cover 5, compression rod 6 and pressure plate 7 to move down, so that the lower surface of the pressure plate 7 comes into contact with the ore on the conveyor belt body 3. Then, the electric push rod 4 is started again. At this time, the pressure plate 7 is squeezed and stops moving, but the compression cover 5 still moves down synchronously. This causes the compression rod 6 and baffle 8 to slide inside the compression cover 5, so that the connected compression spring 9 is compressed synchronously. With the help of the elastic buffering force of the compression spring 9, a uniform and flexible vertical pressing force is generated on the ore stacked below the pressure plate 7. This can press down the protruding upper layer of ore without causing the ore to break due to rigid compression, thus avoiding the impact of ore crushing on subsequent screening operations.

[0048] When the compression hood 5 moves downward, the support plate 10 on the side wall of the compression hood 5 slides downward simultaneously, and the corrugated groove 15 on the support plate 10 moves downward simultaneously. At this time, the positions of the protrusion 14 and the slide rod 13 slidably set on the corrugated groove 15 change simultaneously. The slide rod 13 slides left and right along the guide rod 17, and the bottom of the slide rod 13 slides on the strip groove 12 of the rocker arm 11, thereby driving the pressure plate 7 rotatably connected to the compression rod 6 to swing. As the pressure plate 7 swings, the bottom of the pressure plate comes into contact with the upper layer of ore, directly causing the upper layer of ore stacked above the conveyor belt to swing horizontally and shift and disperse synchronously. The upper layer of ore that was originally stacked on top of the bottom layer of ore and stuck above the ore gaps gradually slides down and fills the gaps and spaces between the bottom layer of ore under the dual action of the pressure plate swinging and its own gravity, completely eliminating the phenomenon of ore stacking up and down and multiple layers, and finally realizing the single-layer flat and regular conveying of ore above the conveyor belt body 3.

[0049] In addition, during the entire downward movement of the compression cover 5, the side limiting and protective structure will also move synchronously: the swing arm 19 fixed to the side wall of the compression cover 5 moves downward synchronously with the cover body, the swing arm 19 pulls the horizontal plate 18 to move vertically synchronously, and the limiting rod 28 installed on the rear side of the horizontal plate 18 slides vertically along the inside of the limiting seat 29. Through the sliding cooperation between the limiting rod 28 and the limiting seat 29, the overall movement trajectory of the horizontal plate 18 is precisely limited to prevent the horizontal plate 18 from deviating to the left or right, and to ensure that the side transmission structure runs smoothly without jamming. While the horizontal plate 18 moves, the insertion rod 20 on its side wall moves synchronously, and the insertion rod 20 drives the insertion plate 21 and the connected fixed seat 22 to move synchronously, continuously providing the fixed seat 22 with an outward driving force. The bottom of the fixed seat 22 slides along the chute, which is divided into two sections: an inclined closed groove 26 and a straight shifting groove 27, corresponding to two different working states of the device. In the initial stage, the pressure plate 7 has not yet moved down to contact the ore. The fixed seat 22 slides along the inclined closed groove 26. Under the guidance of the inclined groove, the fixed seat 22 overcomes the external thrust of the insertion rod 20 and moves towards the center of the device, thereby driving the guide plates 23 on both sides to move towards each other synchronously, closing the conveying passage above the conveyor belt body 3, and preventing the uneven ore from being conveyed backward in advance. Then, after sliding to the shifting groove 27 at the end of the closed groove 26, the conveying passage is closed synchronously, without affecting the operation of other structures.

[0050] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. A smart screening and impurity removal device for high-calcium ore with silicon content, comprising a conveying mechanism for carrying and transporting the ore, a silicon content detection and sorting mechanism disposed at the detection station of the conveying mechanism, and a leveling mechanism disposed upstream of the detection station, wherein the silicon content detection and sorting mechanism is used to remove ore that does not meet the set conditions from the conveying path according to the silicon content judgment result of the ore, characterized in that: The leveling mechanism includes a lifting drive assembly, a flexible flattening assembly, and a transverse material distribution assembly. The flexible flattening assembly has a pressure-bearing part that can vertically yield to the lifting drive assembly and an elastic energy storage element disposed between the two. The transverse material distribution assembly is drivenly connected to the lifting drive assembly and is linked to the pressure-bearing part, so that the lifting motion of the lifting drive assembly causes the pressure-bearing part to generate a transverse swing relative to the conveying direction while vertically and flexibly flattening the ore, thereby dispersing the stacked ore and forming a single-layer conveying state.

2. The intelligent screening and impurity removal device for high-calcium ore with silicon content according to claim 1, characterized in that: The lifting drive assembly includes an electric push rod (4) and a compression cover (5) connected to the output end of the electric push rod (4); the flexible flattening assembly includes a compression rod (6), a pressure plate (7), a baffle (8) and a compression spring (9). The compression rod (6) is slidably engaged with the compression cover (5). The baffle (8) is located at one end of the compression rod (6) inside the compression cover (5). The compression spring (9) is located between the compression cover (5) and the baffle (8). The pressure plate (7) is located at the lower end of the compression rod (6).

3. The intelligent screening and impurity removal device for high-calcium ore with silicon content according to claim 2, characterized in that: The pressure plate (7) is rotatably connected to the compression rod (6), so that after the pressure plate (7) contacts the ore, it can maintain flexible contact with the ore under the elastic pressing action of the compression spring (9), and swing slightly around its connection position under the drive of the transverse bulk material assembly.

4. The intelligent screening and impurity removal device for high-calcium ore with silicon content according to claim 3, characterized in that: The transverse bulk material assembly includes a support plate (10) that moves synchronously with the compression shroud (5), a wave groove (15) provided on the support plate (10), a slide rod (13) provided along the transverse guide, and a rocker arm (11) that is linked with the pressure plate (7). The slide rod (13) is provided with a protrusion (14) that slides with the wave groove (15) and is limited to transverse movement by a guide rod (17). The slide rod (13) slides with the strip groove (12) of the rocker arm (11) to convert the vertical displacement into the transverse swing of the pressure plate (7) when the support plate (10) moves up and down.

5. The intelligent screening and impurity removal device for high-calcium ore with silicon content according to any one of claims 4, characterized in that: Limiting guide components are provided on both sides of the conveying mechanism. The limiting guide components are linked with the compression cover (5) and are configured to cause the guide plates (23) on both sides to retract towards the inside of the conveying channel when the leveling action begins, so as to restrict the ore that has not been leveled from entering the inspection station in advance.

6. The intelligent screening and impurity removal device for high-calcium ore with silicon content according to claim 5, characterized in that: The limiting guide assembly includes a horizontal plate (18), a swing arm (19), a rod (20), a plate (21), a fixed seat (22), a positioning plate (24), a limiting rod (28), and a limiting seat (29). One end of the swing arm (19) is connected to the compression cover (5), and the other end is connected to the horizontal plate (18). The horizontal plate (18) transmits displacement to the fixed seat (22) via the rod (20) and the plate (21). An inclined closed groove (26) and a straight displacement groove (27) are formed on the positioning plate (24). When the fixed seat (22) moves along the inclined closed groove (26), it drives the guide plate (23) to retract inward, and maintains the retracted position of the guide plate (23) after entering the straight displacement groove (27).

7. The intelligent screening and impurity removal device for high-calcium ore with silicon content according to any one of claims 6, characterized in that: The silicon content detection and sorting mechanism includes a sorting machine (1), a controller (2), a spectral detection unit and a pneumatic impurity removal execution unit. The spectral detection unit is used to collect the spectral response of the ore and output the detection results related to the silicon content. The controller (2) is used to compare the detection results with a preset silicon content threshold and control the pneumatic impurity removal execution unit to remove unqualified ore that exceeds the preset silicon content threshold from the conveying path.

8. The intelligent screening and impurity removal device for high-calcium ore with silicon content according to any one of claims 7, characterized in that: The leveling mechanism is located between the feed side of the conveyor belt body (3) and the spectral detection unit, so that the ore undergoes flow restriction, flexible flattening and lateral material distribution in sequence before entering the spectral detection area.

9. A method for intelligent screening and impurity removal of high-calcium ore with silicon content, applied to the intelligent screening and impurity removal device for high-calcium ore with silicon content as described in any one of claims 8, characterized in that, Includes the following steps: Step S1: The ore to be screened is conveyed along the conveying path to the silicon content detection station; before the ore enters the silicon content detection station, a vertical flattening action that can elastically yield is applied to the ore, and the pressure-bearing part is laterally oscillating by using the same mechanical linkage as the vertical flattening action, so that the stacked ore is laterally misaligned and forms a single-layer conveying state under its own gravity. Step S2: Collect the spectral response of the ore in the single-layer conveying state, and obtain the silicon content discrimination result based on the spectral response; Step S3: Compare the silicon content determination result with the preset silicon content threshold, and remove the ore that does not meet the set conditions from the conveying path.

10. The intelligent screening and impurity removal method for high-calcium ore with silicon content according to claim 9, characterized in that: Before or at the beginning of the vertical flattening action, the guide plates on both sides of the conveying path are retracted inward to temporarily restrict the ore from continuing to enter the inspection station; after the flattening and lateral material distribution are completed, the guide plates are reset as the lifting drive assembly returns, and the pneumatic impurity removal unit performs point rejection of the ore with silicon content exceeding the preset threshold.

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