Mining industry pretreatment grading screening device

Abstract

The invention discloses a mining industry pretreatment grading screening device, and belongs to the technical field of crushed ore processing. Comprising a side plate frame, the side plate frame is connected with a filter screen through a transverse driving assembly, the filter screen is provided with a limiting strip, and the limiting strip divides the filter screen into a first screening area and a second screening area; the filter screen horizontally moves to screen materials with different granularities; according to the device, the filter screen is driven by the shaking assembly to horizontally move, and the ore lump materials are transversely shaken and classified by matching with the limiting strips, so that the ore lump materials are uniformly distributed by utilizing the inertia difference of the materials with different particle sizes; and three-stage separation of large materials, medium materials and fine materials can be realized on a single-layer screen. Compared with a traditional multi-layer vertical screening structure, equipment height, complexity and manufacturing and maintenance cost can be remarkably reduced, energy is saved, efficiency is improved, and meanwhile the problem that a lower-layer screen is prone to being blocked is greatly solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of broken ore processing, and particularly relates to a pretreatment grading and screening device for mining. BACKGROUND

[0002] In the field of comprehensive development and utilization of coal-associated mineral resources (such as coal and lithium, etc.), efficient and accurate pretreatment grading is the core and basic link to realize green and low-carbon recovery of resources. The structure of such associated ore bodies is complex, and the mineral dissemination characteristics are diverse. After crushing, the materials often have the characteristics of wide particle size distribution and irregular shape, which puts higher requirements on the adaptability, accuracy and stability of the grading equipment than single mineral. The pretreatment effect directly determines the energy consumption, medium consumption and final concentrate grade of the subsequent physical or chemical separation process, and is the premise of efficient separation and clean utilization of associated resources.

[0003] At present, the traditional multilayer vibrating screen is generally used for grading in this field. The device adopts a vertical stacking structure of multiple screens, and relies on vibration to realize the throwing and scattering of materials and the gradual screening according to geometric size. However, when processing coal-associated minerals, this technical solution has many problems that are not compatible with the concept of green and efficient development: first, the device structure is complex, the body is high and heavy, which not only leads to high initial investment and maintenance cost, but also the significant operating energy consumption does not meet the current low-carbon and energy-saving industrial development direction; secondly, the multiple screens, especially the middle and lower screens, are prone to clogging when processing sticky and fine materials, resulting in a sharp decline in screening efficiency. Frequent shutdown and cleaning not only greatly increases labor and time costs, but also causes production process interruption and system energy consumption increase, which seriously restricts continuous production.

[0004] More importantly, the grading process of the traditional vibrating screen completely relies on the passive action of the particle's own screening ability and vibration force, and the separation effect is low. For a large number of particles near the screen size and irregularly shaped lumps in coal-associated minerals, the randomness of their motion trajectories is strong, and they are prone to size mismatching - that is, some qualified large lumps are mistakenly mixed into fine particle products, or fine particle materials fail to pass through the screen in time and are mixed into coarse particle products. This mismatching phenomenon not only directly reduces the recovery rate of target minerals, causing resource waste, but also seriously pollutes the separation environment of associated minerals, increases the consumption of reagents and equipment load in subsequent separation operations, and greatly hinders the improvement of overall recovery efficiency of coal-associated mineral resources. SUMMARY

[0005] The present application relates to the technical field of broken ore processing, and particularly relates to a pretreatment grading and screening device for mining.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A mining pretreatment grading and screening device includes a side plate frame, on which a filter screen is connected via a transverse drive assembly. The filter screen is provided with a limiting strip, which divides the filter screen into a first screening zone and a second screening zone. The filter screen moves horizontally to screen materials of different particle sizes. Above the filter screen is a material leveling component for evenly distributing the ore blocks on the filter screen. The material leveling component includes a support frame and a material leveling plate connected to the distance adjustment component. A synchronous belt is installed inside the material leveling plate for transmission. A swing component is installed at the bottom of the synchronous belt. The swing component includes an angle-adjustable swing plate. When the two material leveling plates are close together, the swing plate sorts and transfers the large ore blocks that are stuck on one side of the material leveling plate.

[0007] In some embodiments, the outer side of the synchronization belt can contact the ore block material; used to transfer the ore block material piled up at a high position to a low position.

[0008] In some embodiments, the distance adjustment component drives the material leveling component to move back and forth within a certain range on the filter screen, for processing the material accumulated within a certain range on the filter screen.

[0009] In some embodiments, the lateral drive assembly includes an electric push rod fixedly connected to the side plate frame. The fixed end of the electric push rod is fixedly connected to the side plate frame, and the telescopic end of the electric push rod is fixedly connected to the side plate on one side of the filter screen. The electric push rod drives the filter screen to move horizontally. The filter screen is graded and screened by inertia and friction.

[0010] In some embodiments, the thickness of the limiting strip is the dividing line between the ore block size in the first screening zone and the second screening zone.

[0011] In some embodiments, the support plate is fixedly connected to the bottom of the timing belt; the electric push rod is used to drive the swing plate to swing and separate the accumulated ore blocks.

[0012] In some embodiments, the swing assembly includes a support plate, which is movably hinged to the swing plate. The support plate is provided with an electric push rod, and the swing plate is provided with a slide rail. The telescopic end of the electric push rod is movably hinged to a slide block that corresponds to and cooperates with the slide rail. The angle between the support plate and the swing plate is adjusted by the electric push rod for cleaning impurities on the timing belt and the swing plate.

[0013] In some embodiments, a first pressure sensor is provided on the synchronous belt to detect the location of ore accumulation on one side of the synchronous belt, and a second pressure sensor is provided on the swing plate to detect the location of impurities attached to the synchronous belt and the swing plate.

[0014] In some embodiments, the side plate frame top is provided with a poly hopper, and the outlet of the poly hopper corresponds to the central part of the filter screen; the outer side of the side plate frame is provided with a vibration assembly and an elastic connecting seat for driving the filter screen to continuously vibrate and discharge.

[0015] In some embodiments, the discharge end of the filter screen is provided with a first collection channel and a second collection channel configured with flexible rings, so that the first collection channel and the second collection channel can move with the filter screen; and a collection plate is arranged below the filter screen for collecting different specifications of the lump materials.

[0016] Compared with the prior art, the present application provides a mining pretreatment classification and screening device, which has the following beneficial effects.

[0017] 1. In the present application, the filter screen is driven to move horizontally by the shaking assembly and cooperates with the limiting strips to realize the transverse shaking classification of lump materials such as coal and lithium ore. By utilizing the inertia difference of different particle size materials, three-level separation of large lump materials, medium lump materials and fine materials can be realized on a single-layer screen. Compared with the traditional multi-layer vertical screening structure, the device height, complexity and manufacturing and maintenance cost can be significantly reduced, energy saving and efficiency improvement can be realized, and the problem of easy blocking of the lower screen can be greatly reduced.

[0018] 2. In the present application, the material uniformizing assembly can realize real-time sensing of the material pile condition through the pressure sensor, and the lump materials such as coal and lithium ore accumulated or stranded on one side of the material uniformizing assembly can be scattered or transferred through active intervention, so that the mutual mixing between different particle size products is effectively reduced, and the recovery rate of target materials and the overall screening efficiency are improved.

[0019] Other advantages, objects and features of the present application will be explained in the following description; and to some extent, it will be obvious to those skilled in the art based on the following description; or it can be taught from the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present application.

[0021] Figure 2 It is a schematic diagram of the structure of the present application from the top.

[0022] Figure 3 It is a schematic diagram of the structure of the material uniformizing assembly of the present application.

[0023] Figure 4 It is a schematic diagram of the structure of the collection channel of the present application.

[0024] Figure 5 It is a schematic diagram of the structure of the synchronous belt drive of the present application.

[0025] Figure 6The structural schematic diagram of the distance adjusting assembly of the application.

[0026] Figure 7 The structural schematic diagram of the inside of the material uniformizing plate of the application.

[0027] Figure 8 The structural schematic diagram of the swing assembly of the application.

[0028] Figure 9 The structural schematic diagram of the two swing assemblies of the application corresponding to the top view.

[0029] Figure 10 The structural schematic diagram of the swing plate after the angle adjustment of the application.

[0030] In the figure: 1, side plate frame; 2, filter screen; 201, side plate; 3, material gathering hopper; 4, vibration assembly; 5, elastic connecting seat; 6, bottom plate; 601, side fixed plate; 7, transverse driving assembly; 701, limiting strip; 7011, inclined surface; 702, first screening area; 7021, first collecting channel; 703, second screening area; 7031, second collecting channel; 704, collecting plate; 7041, material collecting cover; 705, electric push rod; 8, material uniformizing assembly; 801, support frame; 8011, horizontal plate; 8012, vertical plate; 802, material uniformizing plate; 8021, driving gear; 8022, driven gear; 8023, synchronous belt; 8024, driving motor; 803, lifter; 9, distance adjusting assembly; 901, moving motor; 902, threaded shaft; 903, limiting sliding groove; 904, internally threaded sliding block; 10, swing assembly; 1001, support plate; 1002, electric push rod; 1003, swing plate; 1004, hinge; 1005, slide rail; 1006, slide seat. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application.

[0032] Referring to Figures 1-10The utility model provides a kind of mining pretreatment classification screening device, including side plate frame 1, the inside of side plate frame 1 is equipped with filter screen 2, the top of one end of side plate frame 1 is equipped with material gathering hopper 3, and coal, lithium ore and so on size block material needing to pass through classification screening fall to the central part of filter screen 2 by material gathering hopper 3, speed reducer mechanism can be set in material gathering hopper 3, for reducing the falling speed of material, reduce the damage to filter screen 2, the outside of side plate frame 1 is equipped with vibration assembly 4, four corner parts of side plate frame 1 are equipped with elastic connecting seat 5, vibration motor is included in vibration assembly 4, elastic connecting seat 5 is used to cooperate vibration assembly 4 to make side plate frame 1 and filter screen 2 continue to vibrate, for the downward movement of material.

[0033] Side plate frame 1 is equipped with transverse drive assembly 7 for the transverse movement of filter screen 2, as one of transverse drive assembly 7, transverse drive assembly 7 includes electric push rod 705 fixedly connected with side plate frame 1, the fixed end of electric push rod 705 is fixedly connected with side plate frame 1, and the telescopic end of electric push rod 705 is fixedly connected with the side plate 201 of one side of filter screen 2;Filter screen 2 is equipped with limiting strip 701, limiting strip 701 divides filter screen 2 into first screening zone 702 located in the middle and second screening zone 703 located on the outside, and second screening zone 703 is formed by limiting strip 701, side plate 201 and filter screen 2.

[0034] The thickness of limiting strip 701 is as the boundary line of the size of coal, lithium ore and so on in first screening zone 702 and second screening zone 703;Determine the size of coal, lithium ore block material in first screening zone 702 and second screening zone 703.

[0035] As one of elastic connecting seat 5, elastic connecting seat 5 includes upper elastic part and lower fixed part, and bottom plate 6 is connected to the bottom of lower fixed part, and upper elastic part is fixedly connected with side plate frame 1.

[0036] In the present application, the coal, lithium ore and other block materials to be screened are first introduced into the middle of the filter screen 2 through the aggregate hopper 3. Under the vibration of the side plate frame 1 and the filter screen 2 on the opposite side of the vibration assembly 4 and the elastic connecting seat 5, the side plate frame 1 and the filter screen 2 are continuously vibrated. The side plate frame 1 and the filter screen 2 are both inclined. The aggregate hopper 3 is located at the high position of the side plate frame 1. Under the vibration of the side plate frame 1 and the filter screen 2, the coal and lithium ore block materials falling from the aggregate hopper 3 to the filter screen 2 continuously move to the low position. Under the restriction of the limiting strip 701, the coal and lithium ore block materials on the filter screen 2 are gathered in the first screening area 702 and continuously move downward under the vibration. The coal and lithium ore block materials smaller than the aperture of the filter screen 2 continuously fall into the inside of the collecting plate 704 after passing through the filter screen 2. The collecting plate 704 is also inclined like the filter screen 2. The vibration transmission when the filter screen 2 vibrates makes the coal and lithium ore block materials on the collecting plate 704 move to the low position. Finally, the coal and lithium ore block materials are collected and concentrated through the material collecting cover 7041 and discharged.

[0037] Reference Figures 1 to 4, as a specific embodiment, when the coal, lithium ore and other block materials move downward along the inclined filter screen 2, the filter screen 2 moves horizontally forward and backward through the electric push rod 705 in the horizontal driving assembly 7. The electric push rod 705 is in a vertical relationship with the filter screen 2, and a limiting support that is movably connected with the filter screen 2 is arranged opposite to the electric push rod 705. The limiting support includes a limiting cylinder fixed on the side plate frame 1 and a telescopic column arranged on the side of the filter screen 2 away from the electric push rod 705. The limiting cylinder provides limiting and supporting for the filter screen 2 through the telescopic column. During the horizontal movement of the filter screen 2 driven by the electric push rod 705, the coal, lithium ore and other block materials of different particle sizes are shaken horizontally at a high frequency and small amplitude, and under the action of inertia and friction, the coal, lithium ore and other block materials of different particle sizes produce different motion responses on the filter screen 2, so as to realize the classification and screening of the coal, lithium ore and other block materials of different particle sizes. Unlike the traditional vibrating screen, in which multiple screens are vertically stacked, the screen aperture gradually decreases from top to bottom, and the materials are screened layer by layer by gravity and vibration, only a single layer of filter screen 2 is needed to realize the classification and screening of the coal, lithium ore and other block materials of different particle sizes. Specifically, the filter screen 2 has large block materials, medium block materials and fine materials according to particle size. During the forward and backward movement of the filter screen 2 driven by the electric push rod 705, the inertia of the large block materials is large, and the top of the large block materials exceeds the upper surface of the limiting strip 701. The top of the side of the limiting strip 701 close to the first screening area 702 is provided with an inclined surface 7011. The large block materials will quickly approach the limiting strip 701 due to the inertia during the horizontal movement of the filter screen 2, and when the large block materials contact the limiting strip 701, the large block materials can quickly roll over the limiting strip 701 and be thrown to the second screening area 703 on the outermost side under the guidance of the inclined surface 7011 on the inner side of the limiting strip 701. The side of the limiting strip 701 close to the limiting strip 701 is a vertical surface. When the large block materials in the second screening area 703 contact the limiting strip 701, the limiting strip 701 provides a transverse reaction force for the large block materials to avoid the large block materials returning to the first screening area 702. The inertia of the medium block materials is moderate, and the top of the medium block materials is lower than the upper surface of the limiting strip 701. During the forward and backward movement of the filter screen 2, the inertia of the medium block materials is not enough to make them roll over the limiting strip 701, and with the continuous vibration of the filter screen 2, the medium block materials move downward in the first screening area 702 in the middle of the filter screen 2. The inertia of the fine materials is small, and the fine materials are more likely to pass through the screen holes of the filter screen 2. Through the vibration of the filter screen 2 by the vibration assembly 4, the fine materials sink to the bottom of the coal, lithium ore and other block materials and fall through the screen holes of the filter screen 2 to the collecting plate 704 for centralized collection.

[0038] Further, it can be understood that when the coal, lithium ore and other block materials fall through the collecting hopper 3 to the filter screen 2, the coal, lithium ore and other block materials will form local accumulation on the filter screen 2, and it is difficult to spread the coal, lithium ore and other block materials uniformly by relying on the vibration of the filter screen 2, which leads to that the fine materials cannot be sieved downwards in time, and the burying of the medium block materials and fine materials on the large block materials is not conducive to the rapid transfer of the large block materials to the second screening area 703. In order to solve the above problems, it is referred to Figures 1 to 5 An even material assembly 8 for uniformly distributing the coal, lithium ore and other block materials on the filter screen 2 is arranged above the filter screen 2. The even material assembly 8 comprises a support frame 801 and an even material plate 802, and the even material assembly 8 is provided with two.

[0039] The side fixed plate 601 is connected with the support frame 801, and the side fixed plate 601 is in a state of being separated from the bottom plate 6, so that the vibration of the vibration assembly 4 is not transmitted to the side fixed plate 601 and the even material assembly 8. The inside of the even material plate 802 is provided with a movable groove, and the inside of the movable groove is provided with a driving gear 8021 and a driven gear 8022 at two ends respectively. The driving gear 8021 is driven by a driving motor 8024 arranged at the top of the even material plate 802. The outside of the driving gear 8021 and the driven gear 8022 is transmissionally connected with a synchronous belt 8023, and the top of the synchronous belt 8023 is limitingly and movably connected in the inside of the movable groove. The top of the movable groove is provided with a limiting groove, and the top of the synchronous belt 8023 is provided with a sliding block matched with the limiting groove, which is used for providing limiting support for the synchronous belt 8023. The inside of the synchronous belt 8023 is provided with an internal gear rack, and the driving gear 8021 and the driven gear 8022 are meshingly connected with the synchronous belt 8023. The lifting devices 803 for adjusting the horizontal height of the even material plate 802 are arranged between the support frame 801 and the even material plate 802. The two lifting devices 803 are of the same type, and the height of the even material plate 802 close to the collecting hopper 3 is higher among the two even material plates 802.

[0040] In use, a set of uniform assembly 8 is arranged close to the material gathering hopper 3, and the coal, lithium ore and other block materials falling on the filter screen 2 are moved between the uniform plates 802, and the upper part of the coal, lithium ore and other block materials is blocked by one side of the uniform plate 802, so that the height of the coal, lithium ore and other block materials is limited to below the upper surface of the limiting strip 701. At the same time, the driving motor 8024 drives the driving gear 8021 to rotate at a constant speed, and the synchronous belt 8023 is driven by the driving gear 8022 to move in the active groove along the material moving direction of the filter screen 2, that is, to make a circular motion from high to low. The first pressure sensor is arranged on the synchronous belt 8023, and a pressure threshold P1 is preset in the first pressure sensor, which is used to detect the accumulation position of the coal, lithium ore and other block materials. For example, if the coal, lithium ore and other block materials are accumulated on one side of the filter screen 2 close to the vibration assembly 4, the synchronous belt 8023 is driven by the driving motor 8024 to move away from the vibration assembly 4, and the material is carried. Through this arrangement, the outer surface of the synchronous belt 8023 is in direct contact with the upper part of the coal, lithium ore and other block materials after being blocked, and a continuous auxiliary conveying force is generated on the large and medium block materials, which pushes the coal, lithium ore and other block materials falling on the filter screen 2 to quickly and uniformly spread, so that the subsequent horizontal driving assembly 7 can act on each block material. Avoiding the large block materials being buried by medium and fine materials due to the excessive thickness of the material layer, and preventing the material pile from being compacted by the gravity of the material pile, which causes the fine materials to be squeezed and gathered and unable to pass through the screen hole smoothly. Finally, the fine materials can pass through the screen hole and fall into the collection plate 704, and the large block materials can be completely exposed on the screen surface of the filter screen 2, and can quickly contact the limiting strip 701 and roll into the second screening zone 703 during the subsequent horizontal driving of the horizontal driving assembly 7, and the medium block materials are stably left in the first screening zone 702 and move downward, solving the problem of low screening efficiency and incomplete classification effect caused by the accumulation of coal, lithium ore and other block materials, thereby further ensuring the stability and accuracy of the single-layer filter screen 2.

[0041] Further, as a preferred embodiment, it can be understood that due to the different shapes of coal, lithium ore and other block materials, some large block materials with uniform shape can quickly roll into the second screening zone 703 during the horizontal movement of the filter screen 2, but some large block materials with weak rolling ability are difficult to roll into the second screening zone 703 within a limited time, and some large block materials meeting the second screening zone 703 are left in the first screening zone 702. In order to solve the above problem, reference is made to Figures 1 to 9 ; The bottom of the synchronous belt 8023 is provided with a swing assembly 10, which is initially located at the middle of the material uniformizing plate 802. The swing assembly 10 comprises a support plate 1001 fixedly connected with the synchronous belt 8023, an electric push rod 1002, and a swing plate 1003. One end of the support plate 1001 is movably hinged to one end of the swing plate 1003. The electric push rod 1002 is arranged on one side of the support plate 1001. The swing plate 1003 is provided with a slide rail 1005 at a position corresponding to the electric push rod 1002. The extension end of the electric push rod 1002 penetrates through the support plate 1001 and is movably hinged to a sliding seat 1006, which is slidably connected inside the slide rail 1005. In use, first, the pressure threshold of the first pressure sensor on the synchronous belt 8023 is detected and judged. When the pressure threshold reaches P1, the driving motor 8024 drives the synchronous belt 8023 to move downward, and the swing assembly 10 approaches the area where the pressure increases. Initially, the swing plate 1003 is located on the inner side of the synchronous belt 8023. When the swing assembly 10 corresponds to the accumulated area, the electric push rod 1002 quickly extends and retracts, and the swing plate 1003 quickly swings around the hinge 1004. Since the bottom of the swing plate 1003 is closer to the filter screen 2 than the synchronous belt 8023, it can simultaneously act on different levels of accumulated coal and lithium ore during the swing process, thereby dispersing and separating the accumulated coal and lithium ore outward through swing, eliminating the accumulation of coal and lithium ore on one side of the material uniformizing plate 802, and preventing the height of the accumulated coal and lithium ore from being too high under the limiting action of the material uniformizing plate 802. Then, during the transverse movement of the filter screen 2, the coal and lithium ore that are not large pieces enter the second screening area 703. Moreover, the above-mentioned method can be used as a test method to avoid misjudgment that large pieces are accumulated on one side of the material uniformizing plate 802. The side fixed plate 601 is provided with a distance adjusting assembly 9 for driving the material uniformizing assembly 8 to move horizontally. The distance adjusting assembly 9 can drive the material uniformizing assembly 8 to move horizontally, so that the material uniformizing assembly 8 moves back and forth within a certain range on the filter screen 2, thereby increasing the processing range of the material uniformizing assembly 8 on the accumulated material on the filter screen 2.When the large coal and lithium ore block material is retained in the first screening area 702 due to poor rolling ability, a pressure threshold P2 can be preset in the first pressure sensor, P2>P1. When the first pressure sensor reaches the pressure threshold P2, it indicates that the large material is retained on one side of the material uniformizing plate 802. In this case, the number of material uniformizing assemblies 8 is two, and the two material uniformizing assemblies 8 are synchronously driven by a distance adjusting assembly 9 to move closer to or farther away from each other. At this time, first, the synchronous belt 8023 is reset under the driving of the driving motor 8024, and then the swinging plates 1003 on the two synchronous belts 8023 are controlled to correspond by the driving motor 8024. Then, under the driving of the distance adjusting assembly 9, the two material uniformizing assemblies 8 are driven by the two support frames 801 to move closer to each other, and the retained large material is clamped by the two swinging plates 1003. The swinging plates 1003 are provided with a second pressure sensor, and the second pressure sensor is preset with a pressure threshold P3. When the pressure threshold of the second pressure sensor reaches P3, the distance adjusting assembly 9 stops shortening the distance between the two material uniformizing assemblies 8. At this time, the large material is tightly clamped to prevent it from falling again. Then, the synchronous belt 8023 is driven by the two driving motors 8024 to move at the same speed and in the same direction, so as to transfer the large material retained in the first screening area 702 to the second screening area 703. If the swinging plate 1003 is lower than the height of the limiting strip 701, the swinging plate 1003 is synchronously driven upward by the two groups of lifters 803 to a position higher than the limiting strip 701. When the large material is above the second screening area 703, the distance adjusting assembly 9 is started again to move the two swinging plates 1003 away from each other, so as to release the large material between the two swinging plates 1003. In this way, the large material retained in the first screening area 702 is sorted to the second screening area 703, so as to avoid the accumulation of medium or fine material at the side of the limiting strip 701, and the medium or fine material is moved to the non-matching screening area during the transverse movement of the filter screen 2, so as to cause mismatching. Through the above accurate intervention treatment of the large material, the recovery rate of the target material and the overall screening efficiency can be improved.

[0042] It can be understood that when the large material is detected to be retained on one side of the material uniformizing plate 802, the horizontal shaking of the filter screen 2 by the transverse driving assembly 7 can be temporarily stopped, so as to prevent the large material from moving too much and affecting the stable clamping of the two swinging plates 1003. Also, when the large material is close to the limiting strip 701, the height of the non-large material is increased due to accumulation, and the non-large material enters the second screening area 703 during the transverse movement of the filter screen 2. In addition, the non-large lithium ore block material is prevented from being quickly accumulated at the position of the large material to cause jamming. When the retained large material is sorted to the second screening area 703, the transverse driving assembly 7 is started again.

[0043] As one of the above distance adjusting assembly 9, the distance adjusting assembly 9 includes a moving motor 901 fixedly connected with the side fixed plate 601, the rotating end of the moving motor 901 is provided with a threaded shaft 902, the threaded shaft 902 is threadedly driven with an internal thread sliding block 904, the outer threads on both ends of the threaded shaft 902 are opposite in direction, the two groups of outer threads are respectively matched with the two internal thread sliding blocks 904, the top of the side fixed plate 601 is provided with a limiting sliding groove 903, the bottom of the internal thread sliding block 904 is limitingly and slidably connected with the limiting sliding groove 903 of the side fixed plate 601, the bottom end of the support frame 801 is fixedly connected with the internal thread sliding block 904, the internal thread sliding block 904 drives the support frame 801 and the uniform material plate 802 to move horizontally under the thread cooperation of the moving motor 901 and the internal thread sliding block 904 and the limiting action of the limiting sliding groove 903 on the bottom of the internal thread sliding block 904, and a sliding part is arranged at the other end of the support frame 801 away from the moving motor 901, which is used for forming support and sliding cooperation at the other end of the support frame 801.

[0044] Further, referring to Figure 9 , the swing plate 1003 can form a certain angle between the swing plate 1003 and the support plate 1001 under the rotating cooperation of the support plate 1001 and the end hinge 1004 of the swing plate 1003 and the sliding cooperation of the sliding seat 1006 in the sliding rail 1005, which is called an angle swing plate 1003, at this time, the end of the angle swing plate 1003 away from the hinge 1004 will extend out of the synchronous belt 8023. Under the driving of the distance adjusting assembly 9, the two uniform material plates 802 are close to each other, so that the angle swing plate 1003 close to the other swing plate 1003 is parallel to one side of the synchronous belt 8023, then the driving motor 8024 on the angle swing plate 1003 is kept in a power-off locking state, the other driving motor 8024 drives the synchronous belt 8023 to rotate, so that the synchronous belt 8023 is close to the angle swing plate 1003 and moves horizontally, in this process, when the synchronous belt 8023 passes through the angle swing plate 1003, the impurities on the synchronous belt 8023 are scraped off by the end of the angle swing plate 1003, the second pressure sensor on the angle swing plate 1003 can preset a pressure threshold P4, when the synchronous belt 8023 passes through the angle swing plate 1003 and the second pressure sensor detects that the pressure threshold reaches P4, then the driving motor 8024 on the angle swing plate 1003 drives the sliding rail 1005 to move back and forth, so that the area causing resistance is scraped multiple times, so that the impurities on the synchronous belt 8023 are not cleaned in place, the angle swing plate 1003 and the synchronous belt 8023 or the swing plate 1003 can be adjusted by the lifter 803, and the two swing plates 1003 respectively scrape and clean the impurities on the outer sides of the two synchronous belts 8023.

[0045] The above merely provides the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent replacements or changes within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application.

[0046] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.

Claims

1. A pre-treatment sizing device for the mining industry, comprising a side panel frame (1), characterized in that, The side plate frame (1) is connected with a filtering screen (2) through a transverse driving assembly (7), the filtering screen (2) is provided with a limiting strip (701), the limiting strip (701) divides the filtering screen (2) into a first screening area (702) and a second screening area (703); the horizontal movement of the filtering screen (2) screens different particle size materials; The upper side of the filtering screen (2) is provided with a material uniformizing assembly (8) for uniformly distributing the ore materials on the filtering screen (2), the material uniformizing assembly (8) comprises a support frame (801) connected with a distance adjusting assembly (9) and a material uniformizing plate (802), the inside of the material uniformizing plate (802) is provided with a synchronous belt (8023) in transmission; the bottom of the synchronous belt (8023) is provided with an oscillating assembly (10), the oscillating assembly (10) comprises an angle-adjustable oscillating plate (1003); when the two material uniformizing plates (802) are close to each other, the large ore materials accumulated on one side of the material uniformizing plate (802) are sorted and transferred by the oscillating plate (1003).

2. A pre-treatment sizing screen for the mining industry as claimed in claim 1 wherein, The outside of the synchronous belt (8023) can contact the ore materials; and the ore materials accumulated at a high position are transferred to a low position.

3. A pre-treatment sizing screen for the mining industry as claimed in claim 2 wherein, The distance adjusting assembly (9) drives the material uniformizing assembly (8) to move back and forth on the filtering screen (2) within a certain range, for processing the accumulated materials within a certain range on the filtering screen (2).

4. A pre-treatment sizing screen apparatus for the mining industry as claimed in claim 3 wherein, The transverse driving assembly (7) comprises an electric push rod (705) fixedly connected with the side plate frame (1), the fixed end of the electric push rod (705) is fixedly connected with the side plate frame (1), the telescopic end of the electric push rod (705) is fixedly connected with a side plate (201) on one side of the filtering screen (2), the filtering screen (2) is horizontally moved by the electric push rod (705); and the ore materials of different particle sizes are classified and screened by relying on inertia and friction.

5. A pre-treatment sizing screen apparatus for the mining industry as claimed in claim 4 wherein, The thickness of the limiting strip (701) is the boundary line of the specifications of the ore materials in the first screening area (702) and the second screening area (703).

6. A pre-treatment sizing screen apparatus for the mining industry as claimed in claim 5 wherein, The support plate (1001) is fixedly connected with the bottom of the synchronous belt (8023); and the electric push rod (1002) is used for driving the oscillating plate (1003) to oscillate, so as to separate the ore materials accumulated.

7. A pre-treatment sizing screen apparatus for the mining industry as claimed in claim 6 wherein, The oscillating assembly (10) comprises a support plate, the support plate (1001) is movably hinged with the oscillating plate (1003), the support plate (1001) is provided with an electric push rod (1002), the oscillating plate (1003) is provided with a sliding rail (1005), the telescopic end of the electric push rod (1002) is movably hinged with a sliding seat corresponding to the sliding rail (1005), the angle between the support plate (1001) and the oscillating plate (1003) is adjusted by the electric push rod (1002), and the impurities on the synchronous belt (8023) and the oscillating plate (1003) are cleaned.

8. A pre-treatment sizing screen apparatus for the mining industry as claimed in claim 7 wherein, The synchronous belt (8023) is provided with a first pressure sensor for detecting the accumulated position of the ore materials on one side of the synchronous belt (8023); and the oscillating plate (1003) is provided with a second pressure sensor for detecting the position of the attached impurities on the synchronous belt (8023) and the oscillating plate (1003).

9. A pre-treatment sizing screen apparatus for the mining industry as claimed in claim 8 wherein, The side plate frame (1) is provided with a gathering hopper (3) at the top, and the outlet of the gathering hopper (3) corresponds to the middle part of the filter screen (2); the outer side of the side plate frame (1) is provided with a vibration assembly (4) and an elastic connecting seat (5) for driving the filter screen (2) to continuously vibrate and discharge.

10. A pre-treatment sizing screen apparatus for the mining industry as claimed in claim 9 wherein, The discharge end of the filter screen (2) is provided with a first collecting channel (7021) and a second collecting channel (7031) configured with flexible rings, for moving the first collecting channel (7021) and the second collecting channel (7031) with the filter screen (2); the lower part of the filter screen (2) is provided with a collecting plate (704) for collecting different specifications of ore blocks.

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