A high temperature resistant lithium manganate synthesis screening equipment

Abstract

The present invention belongs to the technical field of lithium manganate screening, and in particular to a high-temperature resistant lithium manganate synthetic screening equipment, comprising a hopper fixedly connected to the ground through a frame at the top, a first material section, a second material section and a conical discharge port are sequentially connected to the lower part of the hopper, a first quantitative discharge device for quantitatively conveying materials to the second material section is installed in the first material section, a second quantitative discharge device for quantitatively conveying materials to a vibrating screen body is installed at the conical discharge port, the second quantitative discharge device is fixedly connected to the vibrating screen body through a bracket, and the second quantitative discharge device is driven by the vibrating screen body to pre-treat the material in the second material section. The present application can make the screening process continuous, the material is evenly distributed on the screen, the material entering the screen is evenly distributed to improve the initial material distribution and improve the screening efficiency, and the amount of pre-treated material can be adjusted to improve the pre-treatment effect.

Description

Technical Field

[0001] The invention relates to the technical field of lithium manganate screening, and in particular to a high temperature resistant lithium manganate synthesis screening device. Background Art

[0002] Lithium manganate is mainly spinel type, and its material properties include a specific gravity between 2.0-2.5. It is usually necessary to grind lithium manganate to a fine particle size D90 below 20 microns. During the grinding process, lithium manganate particles will be broken into smaller particles due to the action of mechanical force. However, these tiny particles will attract each other due to the increase in surface energy, resulting in agglomeration. This agglomeration phenomenon is particularly obvious in the ground material;

[0003] Directly feeding the material into the screening equipment for screening will make the screening equipment more prone to blockage. Under normal circumstances, the shock-absorbing spring support end of the vibrating screen will maintain a certain amplitude and motion trajectory. If blockage occurs, the amplitude will change slightly, the motion trajectory will become unstable or irregular, and the noise will become larger and sharper, resulting in a series of problems such as reduced screening efficiency, reduced processing volume, increased energy consumption, and increased equipment wear. After blockage, it is necessary to first reduce the material feed rate to avoid further aggravation of the blockage. When the blockage situation improves, the material feed rate needs to be accelerated so that the internal material amount before and after the blockage is improved is as consistent as possible. However, the existing equipment does not make corresponding changes to the amount of pretreated materials during the pretreatment process of the feed. If the pretreatment amount is consistent with the standard feeding speed, a part of the material that has not been pretreated will be fed in when the feed is accelerated after the blockage is improved, increasing the risk of blockage. If the pretreatment amount is greater than the standard feeding speed, energy consumption will increase and the pretreatment effect will be reduced. Summary of the invention

[0004] The invention provides a high temperature resistant lithium manganate synthesis screening device, aiming to solve how to improve the clogging of the screen and how to make corresponding changes to the amount of pre-treated materials.

[0005] The present invention provides the following technical solutions:

[0006] A high temperature resistant lithium manganate synthesis screening device, comprising a hopper fixedly connected to the ground through a frame at the top, a first material section, a second material section and a conical discharge port are sequentially connected to the lower part of the hopper, a first quantitative discharge device for quantitatively conveying materials to the second material section is installed in the first material section, a second quantitative discharge device for quantitatively conveying materials to a vibrating screen body is installed at the conical discharge port, the second quantitative discharge device is fixedly connected to the vibrating screen body through a bracket, and the vibrating screen body drives the second quantitative discharge device to pre-treat the materials in the second material section;

[0007] The second quantitative discharging device includes a bracket fixedly connected to the vibration screen body, a column is fixed on the bracket, a pressure-bearing head that can reciprocate and retract is fixed on the column, a quantitative discharging ring is slidably connected to the outside of the pressure-bearing head, a reversing transmission part and a sealing part for preventing the reversing transmission part from contacting the material are installed between the quantitative discharging ring and the pressure-bearing head, the sealing part does not affect the relative sliding of the quantitative discharging ring and the pressure-bearing head, the reversing transmission part drives the quantitative discharging ring to move in the opposite direction of the pressure-bearing head, the reversing transmission part cooperates with the conical discharging port to form a discharging gap, and the material is quantitatively transported from the discharging gap to the screen of the vibration screen body.

[0008] As a further improvement of the above scheme.

[0009] Preferably, the first quantitative discharging device is a feeding auger driven by a driving motor, the driving motor is fixedly installed on the top of the hopper, a cover plate is provided on the top of the hopper, the cover plate is provided with an inlet hole, the inlet hole is connected to the discharge hole of the grinding device, and a stirring paddle is fixedly installed on the output shaft of the driving motor, and the stirring paddle stirs the material in the hopper.

[0010] Preferably, a sealing door that can be opened and closed is provided on the peripheral wall of the second material section, and an observation hole for observing the material and reserving space for the first quantitative discharging device is provided on the sealing door, and the second material section is provided with a magnetic suction device for removing metal debris in the material.

[0011] Preferably, the reversing transmission member includes a support rod fixed on a column, the support rod passes through a pressure head and is fixed with a reversing member, the quantitative discharging ring and the pressure head are installed with a pull rope passing through the reversing member, the sealing member includes a ring sleeve sealed with the quantitative discharging ring, a sealing cover fixedly connected with the pressure head, the interior of the sealing cover is fixedly connected with the pressure head through a connecting rod, the ring sleeve is sealingly and slidably connected with the peripheral wall of the sealing cover, and the ring sleeve, the sealing cover, the quantitative discharging ring and the pressure head are formed with a sealing cavity for accommodating the reversing transmission member.

[0012] Preferably, a material evenly distributing assembly is also installed at the lower part of the conical discharge port, and the material evenly distributing assembly includes an extended material section fixedly connected to the conical discharge port, and the extended material section is fixedly connected to the upper cover body, and a evenly distributing disk is rotatably connected to the lower part of the upper cover body, and a material evenly distributing cavity is formed between the evenly distributing disk and the upper cover body, and evenly distributing holes for material to pass through are opened on the evenly distributing disk, and a material inlet is reserved on the upper cover body, and a through hole is reserved in the middle of the evenly distributing disk for the column to pass through.

[0013] Preferably, an annular groove is provided on the edge of the upper cover body, an annular slide rail is fixed on the top of the peripheral wall of the uniform distribution disk, the annular slide rail is tightly matched and rotatably connected with the annular groove, a scraper for smoothing the material is provided on the lower side of the upper cover body, a shift rod is installed on the bracket, an upper wedge block and a lower wedge block facing the uniform distribution disk are fixed on the shift rod, and shift blocks are evenly fixed on the outer peripheral wall of the uniform distribution disk, the upper and lower wedge blocks cooperate with the shift blocks to shift the uniform distribution disk in a directional rotation with the up and down movement of the shift rod and the bracket, and the directional rotation of the uniform distribution disk cooperates with the scraper to evenly distribute the material in the material uniform distribution chamber.

[0014] Preferably, a clearing piece is connected to the bottom plate of the uniform distribution disk through an elastic telescopic rod, and soft teeth corresponding to the uniform distribution holes are arranged on the clearing piece. The bracket moves up and down to drive the soft teeth on the clearing piece to penetrate into and away from the uniform distribution holes.

[0015] Preferably, a soft seal is installed between the material distribution assembly and the vibrating screen body, a mounting opening for the material distribution assembly to pass through is opened on the top cover of the vibrating screen body, a first sealing ring is sealed at the mounting opening, a second sealing ring is sealed on the extended material section, and an elastic sealing sleeve is sealed between the first sealing ring and the second sealing ring.

[0016] It is to be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the invention.

[0017] In the present invention, the amount of material fed into the vibrating screen body can be controlled by the first quantitative discharging device and the second quantitative discharging device, so as to ensure that during the screening process of the vibrating screen body, when the screen is blocked, the material feed amount can be reduced to avoid aggravation of the blockage, and when the material inside the vibrating screen body is less, the material feed amount can be increased to increase the screening efficiency;

[0018] By setting up the second quantitative discharging device, the material fed into the second material section can be pre-treated, so as to avoid the agglomeration effect of lithium manganate being directly fed into the screening device after grinding, thereby improving the screening efficiency. When a blockage is encountered, the feed amount will be reduced while reducing the amount of pre-treated material, thereby improving the pre-treatment effect. When the material inside the vibration screen body is less than the preset value, the feed amount will be increased, and the amount of pre-treated material will be increased, thereby avoiding the material being directly fed into the vibration screen body without pre-treatment.

[0019] By arranging a sealing door and a magnetic suction device in the second material section, it is possible to reserve space for lithium manganese oxide pretreatment, screen out metal debris, and there is no need to stop the bottom vibrating screen body when processing the metal debris, thereby improving the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the overall structure of a high temperature resistant lithium manganate synthesis screening device provided by an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the internal structure of a high temperature resistant lithium manganate synthesis screening device provided in an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of the three-dimensional structure of a second quantitative discharging device of a high-temperature resistant lithium manganate synthesis screening equipment provided in an embodiment of the present invention;

[0023] Figure 4 A schematic diagram of the three-dimensional structure of a column, a quantitative discharge ring and a pressure head of a high-temperature resistant lithium manganate synthesis screening device provided by an embodiment of the present invention;

[0024] Figure 5 A schematic diagram of the three-dimensional structure of a second quantitative discharging device of a high-temperature resistant lithium manganate synthesis screening device provided by an embodiment of the present invention after opening the upper cover body;

[0025] Figure 6 A bottom view of a second quantitative discharging device of a high temperature resistant lithium manganate synthesis screening equipment provided by an embodiment of the present invention after opening the upper cover body;

[0026] Figure 7 A schematic diagram of the three-dimensional structure of a shifting rod and a shifting block of a high-temperature resistant lithium manganate synthesis screening device provided in an embodiment of the present invention.

[0027] Reference numerals:

[0028] 1. Drive motor; 2. Frame; 3. Hopper; 4. Magnetic device; 5. Sealing door; 6. Conical discharge port; 7. Second sealing ring; 8. Elastic sealing sleeve; 9. First sealing ring; 10. Vibrating screen body; 11. Feeding auger; 12. Agitator; 13. First material section; 14. Second material section; 15. Second quantitative discharge device; 151. Reversing transmission member; 152. Sealing member; 1501. Sealing cover; 1502. Draw rope; 1503. Connecting rod; 1504. Ring sleeve; 1505. Fixed Measuring and discharging ring; 1506, pressure head; 1507, support rod; 1508, column; 16, material uniform distribution assembly; 1601, upper cover; 1602, shift rod; 1603, bracket; 1604, annular slide rail; 1605, uniform distribution disc; 1606, uniform distribution hole; 1607, shift block; 1608, scraper; 1609, material inlet; 1610, dredging piece; 1611, soft teeth; 1612, annular groove; 1613, upper wedge block; 1614, lower wedge block; 17, extended material section. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0030] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection" and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "connection" can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed" means that they are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present invention, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0031] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0032] In the embodiments of the present invention, "and / or" is only a description of the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0033] References to "one embodiment" or "some embodiments" etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present invention. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0034] Example

[0035] Reference Figure 1-Figure 7A high temperature resistant lithium manganate synthesis screening equipment comprises a hopper 3 fixedly connected to the ground through a frame 2 at the top, a first material section 13, a second material section 14 and a conical discharge port 6 are sequentially connected to the lower part of the hopper 3, a first quantitative discharge device for quantitatively conveying materials to the second material section 14 is installed in the first material section 13, the first quantitative discharge device is a feeding auger 11 driven by a driving motor 1 to rotate, the driving motor 1 is fixedly installed on the top of the hopper 3, a cover plate is arranged on the top of the hopper 3, the cover plate is provided with a feed hole, the feed hole is connected to the discharge hole of the grinding device, a stirring paddle 12 is fixedly installed on the output shaft of the driving motor 1, and the stirring paddle 12 stirs the material in the hopper 3;

[0036] The second material section 14 is provided with a sealing door 5 that can be opened and closed on its peripheral wall. The sealing door 5 is provided with an observation hole for observing the material and the reserved space for the first quantitative discharging device. The second material section 14 is provided with a magnetic suction device 4 for removing metal debris from the material.

[0037] A second quantitative discharging device 15 for quantitatively conveying materials to the vibrating screen body 10 is installed at the conical discharging port 6. The second quantitative discharging device 15 is fixedly connected to the vibrating screen body 10 through a bracket 1603. The vibrating screen body 10 drives the second quantitative discharging device 15 to pre-treat the materials in the second material section 14.

[0038] The second quantitative discharging device 15 includes a bracket 1603 fixedly connected to the vibrating screen body 10, a column 1508 is fixed on the bracket 1603, a pressure head 1506 capable of reciprocating and telescopic is fixed on the column 1508, a quantitative discharging ring 1505 is slidably connected to the outside of the pressure head 1506, a reversing transmission member 151 and a sealing member 152 to prevent the reversing transmission member 151 from contacting with the material are installed between the quantitative discharging ring 1505 and the pressure head 1506, the reversing transmission member 151 includes a support rod 1507 fixed on the column 1508, and the support rod 1507 passes through the pressure head 150 6, a reversing member is fixed behind the quantitative discharging ring 1505 and the pressure head 1506, a pull rope 1502 passing through the reversing member is installed, the sealing member 152 includes a ring sleeve 1504 sealedly connected to the quantitative discharging ring 1505, a sealing cover 1501 fixedly connected to the pressure head 1506, the inside of the sealing cover 1501 is fixedly connected to the pressure head 1506 through a connecting rod 1503, the ring sleeve 1504 is sealingly slidably connected to the peripheral wall of the sealing cover 1501, and the ring sleeve 1504, the sealing cover 1501, the quantitative discharging ring 1505 and the pressure head 1506 are formed with a sealing cavity for accommodating the reversing transmission member 151;

[0039] The sealing member 152 does not affect the relative sliding of the quantitative discharge ring 1505 and the pressure head 1506. The reversing transmission member 151 drives the quantitative discharge ring 1505 to move in the opposite direction of the pressure head 1506. The reversing transmission member 151 cooperates with the conical discharge port 6 to form a discharge gap. The material is quantitatively transported from the discharge gap to the screen of the vibrating screen body 10. A material uniform distribution component 16 is also installed at the lower part of the conical discharge port 6. The material uniform distribution component 16 includes an extension section 17 fixedly connected to the conical discharge port 6. The extension section 17 is fixedly connected to the upper cover body 1601. The lower part of the upper cover body 1601 is rotatably connected to the upper cover body 1601. A uniform distribution plate 1605 is connected, and the uniform distribution plate 1605 and the upper cover 1601 are formed with a material uniform distribution cavity. The uniform distribution plate 1605 is provided with a uniform distribution hole 1606 for the material to pass through, and a material inlet 1609 is reserved on the upper cover 1601. A through hole for the column 1508 to pass through is also reserved in the middle of the uniform distribution plate 1605. An annular groove 1612 is opened on the edge of the upper cover 1601. An annular slide rail 1604 is fixed to the top of the peripheral wall of the uniform distribution plate 1605. The annular slide rail 1604 is tightly matched and rotatably connected with the annular groove 1612. A scraper 1608 for smoothing the material is provided on the lower side of the upper cover 1601 A lever 1602 is mounted on the bracket 1603, and an upper wedge block 1613 and a lower wedge block 1614 are fixed on the lever 1602, which are arranged facing the uniform distribution disk 1605. A lever block 1607 is evenly spaced and fixed on the outer peripheral wall of the uniform distribution disk 1605. The upper wedge block 1613 and the lower wedge block 1614 move up and down with the lever 1602 and the bracket 1603, and the lever block 1607 drives the uniform distribution disk 1605 to rotate in a directional manner. The uniform distribution disk 1605 rotates in a directional manner and cooperates with the scraper 1608 to evenly distribute the material in the material uniform distribution chamber. The bottom plate of the uniform distribution disk 1605 is connected with a sparse material through an elastic telescopic rod. A through piece 1610 is provided with soft teeth 1611 corresponding to the uniform distribution holes 1606 one by one. The bracket 1603 moves up and down to drive the soft teeth 1611 on the through piece 1610 to penetrate into and away from the uniform distribution holes 1606. A soft seal is installed between the material uniform distribution component 16 and the vibrating screen body 10. A mounting opening for the material uniform distribution component 16 to pass through is opened on the top cover of the vibrating screen body 10. A first sealing ring 9 is sealed at the mounting opening. A second sealing ring 7 is sealed on the extended material section 17. An elastic sealing sleeve 8 is sealed between the first sealing ring 9 and the second sealing ring 7.

[0040] The working principle of the present application is as follows: the hopper 3 is fixed on the frame 2 through a hoop, the frame 2 is fixedly connected to the ground, a driving motor 1 is fixedly installed on the top of the hopper 3, the output shaft of the driving motor 1 passes through the interior of the hopper 3 and is fixedly connected to the feeding auger 11 and the stirring paddle 12, the upper part of the hopper 3 is a storage cavity, and the lower part is a vertical cylindrical first material section 13, the feeding auger 11 is located in the first material section 13, the feeding auger 11 cooperates with the first material section 13 to quantitatively transport materials to the second material section 14 at the rear, and the second material section 14 and the stirring paddle 12 are connected. The first material section 13 is fixedly connected, the second material section 14 is fixedly connected to the frame 2 through a hoop, the end of the second material section 14 is connected to a conical discharge port 6, the lower end of the conical discharge port 6 is connected to an extension material section 17, the extension material section 17 extends into the vibrating screen body 10 and is fixedly connected to a material uniform distribution component 16, the material uniform distribution component 16 is located on the upper part of the screen in the vibrating screen body 10, and the top of the vibrating screen body 10 is softly sealed and connected to the extension material section 17, that is, when the vibrating screen body 10 vibrates, it will not directly drive the extension material section 17 to vibrate together;

[0041] There is enough space between the first material section 13 and the second material section 14, so that there is space between the material in the second material section 14 and the feeding auger 11 in the first material section 13;

[0042] A second quantitative discharging device 15 for controlling the discharging speed of the material in the second material section 14 is installed in the conical discharging port 6. The second quantitative discharging device 15 is fixedly connected to the lower vibrating screen body 10 through a bracket 1603, so that it can move up and down with the vibrating screen body 10 to pre-treat the material in the second material section 14, perform pre-vibration in a small space, destroy the agglomeration of the material, and perform preliminary stratification. A column 1508 is fixed on the bracket 1603, and a support rod 1507 and an elastic telescopic rod are fixed on the top of the column 1508. The top of the elastic telescopic rod is connected to a pressure head 1506, and the support rod 1507 passes through the pressure head 1506 and is connected to a reversing member. The pressure head 1 A quantitative discharging ring 1505 is sleeved on the outer side of 506, and a pull rope 1502 is connected to the quantitative discharging ring 1505. The pull rope 1502 passes through the reversing member and is fixedly connected to the pressure head 1506. A sealing cover 1501 is fixed on the pressure head 1506, and a ring sleeve 1504 is fixed on the quantitative discharging ring 1505. The sealing cover 1501 and the ring sleeve 1504 are slidably connected. The sealing cover 1501, the ring sleeve 1504, the quantitative discharging ring 1505 and the pressure head 1506 form a sealed cavity to prevent materials from entering the internal space and affecting the pull rope 1502 and the reversing member. When the quantitative discharging ring 1505 and the pressure head 1506 move upward as a whole with the vibrating screen body 10, the quantitative discharging The ring 1505 and the conical discharge port 6 form a discharge gap that changes gradually from small to large. When the quantitative discharge ring 1505 and the pressure head 1506 move downward as a whole along with the vibrating screen body 10, the quantitative discharge ring 1505 and the conical discharge port 6 form a discharge gap that changes gradually from large to small. When the relative positions of the quantitative discharge ring 1505 and the pressure head 1506 change, such as when the quantitative discharge ring 1505 moves toward the upper part of the pressure head 1506, the distance of the discharge gap when the quantitative discharge ring 1505 and the pressure head 1506 move up and down as a whole will be increased. When the quantitative discharge ring 1505 moves to the lower part of the pressure head 1506, the distance between the quantitative discharge ring 1505 and the pressure head 1506 will be reduced. 06 is the distance of the discharge gap when the whole body moves up and down. Since the pressure head 1506 is connected to the column 1508 by an elastic telescopic rod, the space above the pressure head 1506, that is, when the material in the second material section 14 increases, the relative position of the pressure head 1506 will decrease, and when the material in the second material section 14 decreases, the relative position of the pressure head 1506 will increase. Because the pressure head 1506 is connected to the quantitative discharge ring 1505 by the pull rope 1502 and the reversing member, when the relative position of the pressure head 1506 decreases, the relative position of the quantitative discharge ring 1505 will increase, and when the relative position of the pressure head 1506 increases, the relative position of the quantitative discharge ring 1505 will decrease.

[0043] The final manifestation is that when the material in the second material section 14 increases, the position of the pressure head 1506 relative to the column 1508 will be lowered, and the position of the quantitative discharging ring 1505 relative to the column 1508 will be higher. When the vibration amplitude of the vibrating screen body 10 does not change much, the quantitative discharging ring 1505, the pressure head 1506, the column 1508 and the bracket 1603 vibrate up and down with the vibrating screen body 10. When vibrating upward, the discharging gap formed by the quantitative discharging ring 1505 and the conical discharging port 6 gradually changes from small to large, and compared with before the material in the second material section 14 increases, the discharging gap is larger, which is manifested in that more material passes through the discharging gap. When vibrating downward, the discharging gap formed by the quantitative discharging ring 1505 and the conical discharging port 6 gradually changes from large to small, and compared with before the material in the second material section 14 increases, the discharging gap is larger, which is manifested in that more material passes through the discharging gap.

[0044] When the material in the second material section 14 decreases, the position of the pressure head 1506 relative to the column 1508 will increase, and the position of the quantitative discharging ring 1505 relative to the column 1508 will decrease. When the vibration amplitude of the vibrating screen body 10 does not change much, the quantitative discharging ring 1505, the pressure head 1506, the column 1508 and the bracket 1603 vibrate up and down with the vibrating screen body 10. When vibrating upward, the discharging gap formed by the quantitative discharging ring 1505 and the conical discharging port 6 gradually changes from small to large, and is smaller than before the material in the second material section 14 decreases, which is manifested in that less material passes through the discharging gap; when vibrating downward, the discharging gap formed by the quantitative discharging ring 1505 and the conical discharging port 6 gradually changes from large to small, and is smaller than before the material in the second material section 14 decreases, which is manifested in that less material passes through the discharging gap;

[0045] During the operation, the vibration screen body 10 bears the weight of the material which is the sum of the weight of the material in the second material section 14 and the weight of the material on the screen. When it is detected that the weight of the material on the screen increases, it indicates that there may be a blockage on the screen. Specifically, there are various ways to monitor the weight change of the material on the screen, including installing a sensor inside the vibration screen body 10 to detect the height of the material on the screen surface, or using an image acquisition device to capture an image of the screen surface to determine the amount of material on the screen surface, or installing a laser ranging sensor between the vibration screen body 10 and the base to compare the actual distance with the preset standard distance to determine the amount of material on the screen surface. In the present application, multiple laser ranging sensors are set to measure the distance between the vibration screen body 10 and the base. When the weight of the material on the screen increases, the vibration screen body 10 and the base are The spacing between the seats is smaller than the preset value area, so it is determined that there may be blockage on the screen, resulting in an increase in the material inside the vibration screen body 10, and the control system controls the driving motor 1 to reduce its rotation speed; after the driving motor 1 reduces its rotation speed, the weight of the material in the second material section 14 is reduced, thereby improving the pretreatment effect of the material in the second material section 14, so that the total weight borne by the vibration screen body 10 is roughly the same, and after the weight of the material in the second material section 14 is reduced, the relative position of the quantitative discharge ring 1505 and the pressure head 1506 is automatically adjusted, so that when the quantitative discharge ring 1505, the pressure head 1506, the column 1508 and the bracket 1603 vibrate up and down with the vibration screen body 10, the discharge gap between the quantitative discharge ring 1505 and the conical discharge port 6 becomes smaller, so that the material entering the screen is reduced, thereby improving the blockage of the screen;

[0046] When multiple laser distance measuring sensors detect that the distance between the vibration screen body 10 and the base is greater than the preset value area, it is determined that the weight of the material on the screen has decreased. When it is detected that the weight of the material on the screen has decreased, the speed of the driving motor 1 is controlled to increase so as to control the weight of the material in the second material section 14 to increase, thereby increasing the amount of pre-treated material and preventing the material that has not been pre-treated from directly entering the vibration screen body 10. After the weight of the material in the second material section 14 increases, the relative position of the quantitative discharge ring 1505 and the pressure head 1506 is automatically adjusted, so that when the quantitative discharge ring 1505, the pressure head 1506, the column 1508 and the bracket 1603 vibrate up and down with the vibration screen body 10, the discharge gap between the quantitative discharge ring 1505 and the conical discharge port 6 becomes larger, so that more materials enter the screen, so that there is enough material on the screen, the screening process is continuous, and the material is evenly distributed on the screen, thereby ensuring the uniformity and stability of the screening process;

[0047] The material passing through the discharge gap passes through the cylindrical extension section 17 at the bottom and enters the cavity of the material uniform distribution component 16. The material uniform distribution component 16 includes an upper cover 1601 fixedly connected to the extension section 17 at the top, and a plurality of scrapers 1608 for smoothing the material are fixedly installed on the lower side of the upper cover 1601. An annular slide rail 1604 is fixed to the edge of the upper cover 1601, and a uniform distribution plate 1605 is slidably connected to the annular slide rail 1604. An annular groove 1612 adapted to the annular slide rail 1604 is provided on the top of the edge of the uniform distribution plate 1605. After the uniform distribution plate 1605 is tightly matched and rotated, the uniform distribution plate 1605 can rotate freely in the horizontal direction. A uniform distribution hole 1606 for evenly spreading the material is opened at the bottom of the uniform distribution plate 1605. A dial block 1607 is installed on the outer wall of the uniform distribution plate 1605. A dredging piece 1610 is installed at the bottom of the uniform distribution plate 1605 through an elastic telescopic rod to prevent the uniform distribution hole 1606 from being blocked. The dredging piece 1610 is provided with soft teeth 1611 corresponding to the uniform distribution holes 1606 one by one. The bracket 1603 moves up and down to drive the soft teeth 1611 on the dredging piece 1610 to penetrate The uniform distribution hole 1606 is moved into and away from the uniform distribution hole 1606, and there is enough space between the uniform distribution hole 1606 on the uniform distribution plate 1605 and the screen. The bracket 1603 is also fixed with a lever 1602, and the cross-sectional shape of the lever block 1607 is a trapezoid. The lever 1602 is fixed with an upper block 1613 and a lower block 1614 on one side facing the lever block 1607. The interval between the upper block 1613 and the lower block 1614 is adapted to the interval between the lever blocks 1607, and the inclined surfaces of the upper block 1613 and the lower block 1614 are adapted to the lever block 1607. 1614 As the lever 1602 and the bracket 1603 move up and down, the shift block 1607 drives the uniform distribution disk 1605 to rotate in a directional manner; the top of the vibrating screen body 10 is sealed with a top cover, and a mounting opening for the uniform distribution disk 1605 and the extended material segment 17 to pass through is opened in the middle of the top cover, and a soft sealing member is installed between the mounting opening and the extended material segment 17, and the soft sealing member includes a first sealing ring 9 sealed with the mounting opening, and a second sealing ring 7 sealed with the extended material segment 17, and an elastic sealing sleeve 8 is sealed between the first sealing ring 9 and the second sealing ring 7.

[0048] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention; the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A high temperature resistant lithium manganate synthesis screening equipment, characterized in that: It includes a hopper that is fixedly connected to the ground through a frame at the top, the lower part of the hopper is sequentially connected with a first material section, a second material section and a conical discharge port, the first material section is equipped with a first quantitative discharge device that quantitatively delivers materials to the second material section, the first quantitative discharge device is a feeding auger that is driven to rotate by a driving motor, the conical discharge port is equipped with a second quantitative discharge device that quantitatively delivers materials to the vibrating screen body, the second quantitative discharge device is fixedly connected to the vibrating screen body through a bracket, so that the second quantitative discharge device moves up and down with the vibrating screen body to pre-treat the materials in the second material section, and the second material section is provided with a magnetic suction device for removing metal debris in the materials; The second quantitative discharging device includes a bracket fixedly connected to the vibrating screen body, a column is fixed on the bracket, a pressure-bearing head that can reciprocate and retract is fixed on the top of the column through an elastic telescopic rod, a quantitative discharging ring is slidably connected to the outside of the pressure-bearing head, a reversing transmission part and a sealing part to prevent the reversing transmission part from contacting the material are installed between the quantitative discharging ring and the pressure-bearing head, the reversing transmission part includes a support rod fixed on the column, a reversing part is fixed on the support rod after passing through the pressure-bearing head, a pull rope passing through the reversing part is installed on the quantitative discharging ring and the pressure-bearing head, the sealing part does not affect the relative sliding of the quantitative discharging ring and the pressure-bearing head, the reversing transmission part drives the quantitative discharging ring to move in the opposite direction of the pressure-bearing head, the quantitative discharging ring cooperates with the conical discharging port to form a discharging gap, and the material is quantitatively transported from the discharging gap to the screen of the vibrating screen body.

2. The high temperature resistant lithium manganate synthesis screening equipment according to claim 1, characterized in that: The driving motor is fixedly mounted on the top of the hopper, a cover plate is provided on the top of the hopper, an inlet hole is opened on the cover plate, the inlet hole is connected to the outlet hole of the grinding device, a stirring paddle is fixedly mounted on the output shaft of the driving motor, and the stirring paddle stirs the material in the hopper.

3. The high temperature resistant lithium manganate synthesis screening equipment according to claim 1, characterized in that: A sealing door that can be opened and closed is provided on the peripheral wall of the second material section, and an observation hole for observing the material and the reserved space for the first quantitative discharging device is provided on the sealing door.

4. The high temperature resistant lithium manganate synthesis screening equipment according to claim 1, characterized in that: The sealing component includes a ring sleeve sealingly connected to the quantitative discharging ring and a sealing cover fixedly connected to the pressure-bearing head. The interior of the sealing cover is fixedly connected to the pressure-bearing head via a connecting rod. The ring sleeve is sealingly and slidably connected to the peripheral wall of the sealing cover. The ring sleeve, the sealing cover, the quantitative discharging ring and the pressure-bearing head are formed with a sealing cavity for accommodating a reversing transmission component.

5. A high temperature resistant lithium manganate synthesis screening equipment according to any one of claims 1 to 4, characterized in that: A material evenly distributing assembly is also installed at the lower part of the conical discharge port, and the material evenly distributing assembly includes an extended material section fixedly connected to the conical discharge port, and the extended material section is fixedly connected to the upper cover body, and a evenly distributing disk is rotatably connected to the lower part of the upper cover body, and a material evenly distributing cavity is formed between the evenly distributing disk and the upper cover body, and evenly distributing holes for material to pass through are opened on the evenly distributing disk, and a material inlet is reserved on the upper cover body, and a through hole for a column to pass through is reserved in the middle of the evenly distributing disk.

6. The high temperature resistant lithium manganate synthesis screening equipment according to claim 5, characterized in that: An annular groove is provided on the edge of the upper cover body, an annular slide rail is fixed on the top of the peripheral wall of the uniform distribution disk, the annular slide rail is tightly matched and rotatably connected with the annular groove, a scraper for smoothing the material is provided on the lower side of the upper cover body, a shift rod is installed on the bracket, an upper wedge block and a lower wedge block facing the uniform distribution disk are fixed on the shift rod, and shift blocks are evenly fixed on the outer peripheral wall of the uniform distribution disk, the upper wedge block and the lower wedge block cooperate with the shift block to shift the uniform distribution disk in a directional rotation as the shift rod and the bracket move up and down, and the directional rotation of the uniform distribution disk cooperates with the scraper to evenly distribute the material in the material uniform distribution chamber.

7. The high temperature resistant lithium manganate synthesis screening equipment according to claim 6, characterized in that: The bottom plate of the uniform distribution disk is connected with a dredging piece through an elastic telescopic rod, and the dredging piece is provided with soft teeth corresponding to the uniform distribution holes one by one. The bracket moves up and down to drive the soft teeth on the dredging piece to penetrate into and away from the uniform distribution holes.

8. The high temperature resistant lithium manganate synthesis screening equipment according to claim 7, characterized in that: A soft seal is installed between the material distribution assembly and the vibration screen body. A mounting opening for the material distribution assembly to pass through is opened on the top cover of the vibration screen body. A first sealing ring is sealed at the mounting opening. A second sealing ring is sealed on the extended material section. An elastic sealing sleeve is sealed between the first sealing ring and the second sealing ring.

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