Lithium slag solid waste resource recovery device

Abstract

The invention provides a lithium slag solid waste resource recovery device. The lithium slag solid waste resource recovery device comprises a grinding barrel, a grinding assembly, a blowing assembly and a discharging assembly, wherein the grinding assembly and the blowing assembly are arranged in the grinding barrel; the discharging assembly is arranged at the top of the grinding barrel; the grinding assembly comprises a first driving part arranged below the grinding barrel, a transmission disc arranged in the grinding barrel, and a plurality of grinding parts and pushing parts which are arranged on the transmission disc; a filter screen is arranged on the outer side of the transmission disc; the air blowing assembly comprises a guide cylinder arranged in the grinding barrel, a second driving part arranged below the grinding barrel and an air guide pipe connected with a filter screen, and the filter screen is located between the guide cylinder and the grinding barrel; the discharging assembly is arranged in the discharging pipe above the grinding barrel and comprises a filter barrel located at an inlet of the discharging pipe and an air exhaust component arranged at the filter barrel. The problem that in the prior art, a consistent and special lithium slag solid waste resource recycling device for improving the grinding and recycling efficiency of lithium slag particle powder is lacked is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of resource recovery, and in particular to a lithium slag solid waste resource recovery device. Background Art

[0002] Lithium slag is an industrial waste residue generated during the sulfuric acid process of lithium extraction from lithium ores (such as spodumene and lepidolite). Its primary components are a mixture of silicon oxide, aluminum oxide, and calcium oxide. It is typically in granular or powdered form. Lithium slag is widely used as an admixture in general-purpose silicate and specialty cements, improving cement workability, reducing the mix ratio of cement clinker, and lowering cement manufacturing costs.

[0003] With the continuous development of the construction industry, high-strength, high-performance concrete has become a research hotspot. Improving the strength and performance of engineering structural concrete can improve concrete durability, reduce the weight of concrete structures, and lower construction costs. High-performance ultrafine lithium slag powder produced by grinding lithium slag can be used in conventional concrete, high-strength and high-performance concrete, ultra-high-performance concrete, and precast concrete products. It can significantly increase the dosage of ultrafine composite mineral admixtures in cement and concrete, significantly reducing cement and concrete production costs while improving cement and concrete quality.

[0004] However, lithium slag recovered from ore production typically forms particles or powders of varying sizes. Therefore, the slag powder must be recycled and ground before it can be used in concrete. Existing grinding equipment has limited adaptability and is not specifically suited for grinding lithium slag particles, a material with a certain degree of cohesion. For example, using existing ball mills to grind lithium slag particles results in uneven particle sizes, requiring further screening. Furthermore, the stickiness of lithium slag makes it easily adhere to the equipment, affecting grinding efficiency. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a lithium slag solid waste resource recovery device, which aims to solve the problem in the prior art of lacking a consistent and specialized lithium slag solid waste resource recovery device for improving the grinding recovery efficiency of lithium slag particle powder.

[0006] A lithium slag solid waste resource recovery device according to an embodiment of the present invention includes a grinding barrel, a grinding assembly and a blowing assembly arranged in the grinding barrel, and a discharge assembly arranged on the top of the grinding barrel;

[0007] The grinding assembly includes a first driving component arranged below the grinding barrel, a transmission disc arranged in the grinding barrel, and a plurality of grinding components and a pushing component arranged on the transmission disc. A filter screen is provided on the outer side of the transmission disc. The grinding components are used to grind the lithium slag on the transmission disc, and the pushing components are used to push the ground lithium slag to the filter screen.

[0008] The air blowing assembly includes a guide cylinder arranged in the grinding barrel, a second driving component arranged below the grinding barrel, and an air guide pipe connected to the filter screen, wherein the filter screen is located between the guide cylinder and the grinding barrel, and the second driving component blows the lithium powder of the target particle size on the filter screen along the guide cylinder to the discharge assembly through the air guide pipe;

[0009] The discharge assembly is arranged in a discharge pipe above the grinding barrel, and the discharge assembly includes a filter barrel located at the inlet of the discharge pipe and an air extraction component arranged at the filter barrel.

[0010] In addition, the lithium slag solid waste resource recovery device according to the above embodiment of the present invention may also have the following additional technical features:

[0011] Preferably, the transmission disc is provided with a first annular rib, a second annular rib and a third annular rib in sequence from the inside to the outside, and a grinding disc is arranged in the center of the transmission disc, the first grinding component and the first pushing component are located between the grinding disc and the first annular rib, the second grinding component and the second pushing component are located between the second annular rib and the third annular rib, the first annular rib and the second annular rib are provided with an inclined surface close to the grinding disc, and the filter is arranged between the second annular rib and the third annular rib.

[0012] Preferably, the first grinding component includes a connecting shaft and a first grinding roller provided on the connecting shaft, the grinding disc is connected to the driving shaft of the first driving component, and the connecting shaft is connected to the grinding disc.

[0013] Preferably, the first pushing component includes a first inclined block and a first inclined plate arranged on the first inclined block, one side of the first inclined block is connected to the grinding disc, and the first inclined plate is inclined from the bottom of one side of the first inclined block close to the grinding disc to the top of the other side.

[0014] Preferably, the second pushing component includes a second inclined block, the first inclined plate arranged on the second inclined block, and a C-shaped plate for connecting the first inclined block and the second inclined block, the C-shaped plate is arranged across the first annular rib, and multiple C-shaped plates are connected by an annular plate to enable multiple second pushing components to be linked.

[0015] Preferably, the inclined surfaces are provided on both sides of the second annular rib, and a third pushing component is provided between the second annular rib and the third annular rib. The third pushing component includes a third inclined block, a second inclined plate and an L-shaped plate arranged on the third inclined block. The L-shaped plate is used to connect the third inclined block and the annular plate, and the second inclined plate and the first inclined plate are in opposite directions.

[0016] Preferably, the second grinding component includes a rotating shaft and a second grinding roller arranged on the rotating shaft, and the rotation is transmission-connected with the grinding disc to drive the second grinding roller to rotate.

[0017] Preferably, the second grinding roller includes a shell, an eccentric roller arranged in the shell and a plurality of paddles arranged on the outside of the eccentric roller, the inner side of the shell is provided with a slide groove that cooperates with the slide rods at both ends of the paddle, and the side wall of the shell is provided with an avoidance groove for adapting the paddle, one end of the rotating shaft is connected to the eccentric roller, and the other end is provided with a gear that adapts to the gear ring on the transmission disk, so that the rotation drives the eccentric roller to rotate, so that the paddle extends or retracts into the shell, an F-shaped plate is provided on the outside of the shell, one end of the F-shaped plate clamps the shell at the bayonet and is rotatably connected to the shell, and the other end is connected to the grinding disk, the grinding disk is hollow, and the gear ring is arranged inside the grinding disk.

[0018] Preferably, a connecting column is provided above the grinding disc, a dispersion rod is provided on the top of the connecting column, and a plurality of the dispersion rods are equidistantly staggered around the axis of the connecting column.

[0019] Preferably, the exhaust component includes a rotating shaft located at the center of the filter barrel and a fan arranged on the rotating shaft. The rotating shaft extends out of the filter barrel at one end away from the fan and is provided with an L-shaped scraper, and the L-shaped scraper is in contact with the outer side of the filter barrel.

[0020] The present invention uses a grinding assembly to allow multiple grinding components and a pushing component within the grinding assembly to cooperate with each other to grind lithium slag particles through multiple levels of grinding components in sequence and move them to the next grinding area, thereby grinding the lithium slag particles to the target particle size until they reach the filter screen. Then, through the blowing component below the grinding barrel, the filter screen area is continuously blown, so that lithium slag powder that meets the target particle diameter will be blown up. Then, under the action of the gas fluid, the lithium slag powder will move along the guide tube to the discharge assembly for discharge. Lithium slag that does not meet the particle size will not be blown, and will be pushed to the grinding component by the pushing component for further grinding, thereby ensuring that the lithium slag powder discharged by the discharge component is uniform in particle size and meets the required lithium slag powder particles. In addition, a filter barrel is also provided at the discharge assembly to further ensure that the discharged lithium slag powder is ultra-fine target powder. In addition, the blowing amplitude and frequency of the blowing assembly can be adjusted when necessary, so that the pulsed blowing vibration effect can prevent the lithium slag powder from adhering to the equipment and affecting the grinding efficiency. When the blowing cleaning is performed, the lithium slag that is carried to the filter barrel with inconsistent particle size will not flow out of the discharge pipe due to the obstruction of the filter barrel. When the blowing assembly has normal wind power, the lithium slag that is inconsistent with the particle size will fall back to the grinding assembly under the action of gravity and be ground. Therefore, the present invention solves the problem in the prior art of the lack of a consistent and specialized lithium slag solid waste resource recovery device for improving the grinding recovery efficiency of lithium slag particle powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the structure of a lithium slag solid waste resource recovery device in one embodiment of the present invention;

[0022] Figure 2 for Figure 1 Schematic diagram of the structure of the grinding barrel after partial section;

[0023] Figure 3 for Figure 2 Schematic diagram of the structure after hiding part of the blowing component;

[0024] Figure 4 This is a schematic diagram of the structure of Spit 2 after hiding the discharge assembly, guide tube, connecting column and dispersion rod;

[0025] Figure 5 Schematic diagram of the structure of a grinding assembly in one embodiment of the present invention;

[0026] Figure 6 Schematic diagram of the structure of a transmission plate in one embodiment of the present invention;

[0027] Figure 7 Schematic diagram of the structure of the first pushing member, the second pushing member and the third pushing member in one embodiment of the present invention;

[0028] Figure 8A schematic structural diagram of a first grinding member, a second grinding member, and a grinding disc in one embodiment of the present invention;

[0029] Figure 9 is an exploded schematic diagram of a second grinding component in one embodiment of the present invention;

[0030] Figure 10 Schematic diagram of the assembly of the grinding assembly, connecting column, dispersion rod and blowing assembly in one embodiment of the present invention;

[0031] Description of main component symbols:

[0032]

[0033] DETAILED DESCRIPTION

[0034] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The drawings illustrate several embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] See also Figures 1 to 10 , shown is a lithium slag solid waste resource recovery device in one embodiment of the present invention, comprising a grinding barrel 10, a grinding assembly 20 and a blowing assembly 30 disposed in the grinding barrel 10, and a discharge assembly 40 disposed on the top of the grinding barrel 10;

[0038] The grinding assembly 20 includes a first driving component 21 disposed below the grinding barrel 10, a transmission disc 22 disposed within the grinding barrel 10, and a plurality of grinding components and a pushing component disposed on the transmission disc 22. A filter screen 23 is disposed on the outer side of the transmission disc 22. The grinding components are used to grind the lithium slag on the transmission disc 22, and the pushing components are used to push the ground lithium slag to the filter screen 23.

[0039] The air blowing assembly 30 includes a guide tube 31 disposed within the grinding barrel 10, a second driving component 32 disposed below the grinding barrel 10, and an air guide pipe 33 connected to the filter 23. The filter 23 is located between the guide tube 31 and the grinding barrel 10. The second driving component 32 blows lithium powder of a target particle size on the filter 23 along the guide tube 31 to the discharge assembly 40 through the air guide pipe 33.

[0040] The discharge assembly 40 is disposed in the discharge pipe 11 above the grinding barrel 10 . The discharge assembly 40 includes a filter barrel 41 located at the inlet of the discharge pipe 11 and an air extraction component 42 disposed at the filter barrel 41 .

[0041] It can be understood that the grinding assembly 20 allows the multiple grinding components and the pushing component in the grinding assembly 20 to cooperate with each other to grind the lithium slag particles through the multi-level grinding components in sequence and move them to the next grinding area, so that the lithium slag particles are ground to the target particle size until the filter 23, and then the blowing assembly 30 on the bottom of the grinding barrel 10 is continuously blown to the area of ​​the filter 23, so that the lithium slag powder that meets the target particle diameter will be blown up, and then the lithium slag powder will move along the guide tube 31 to the discharge assembly 40 for discharge under the action of the gas fluid, while the lithium slag that does not meet the particle size will not be blown, and will be pushed to the grinding component under the action of the pushing component for further grinding, thereby ensuring that the lithium slag powder discharged by the discharge component is uniform in particle size and meets the required lithium slag powder particles. In addition, a filter barrel 41 is also provided at the discharge assembly 40 to further ensure that the discharged lithium slag powder is an ultra-fine target powder. In addition, the blowing amplitude and frequency of the blowing assembly 30 can be adjusted when necessary, so that the pulsed blowing vibration effect can prevent the lithium slag powder from adhering to the equipment and affecting the grinding efficiency. When the blowing cleaning is performed, the lithium slag that is not in accordance with the particle size is carried to the filter barrel 41 and is blocked by the filter barrel 41 and will not flow out of the discharge pipe 11. When the wind force of the blowing assembly 30 is normal, the lithium slag that is not in accordance with the particle size will fall back to the grinding assembly 20 under the action of gravity and be ground. Therefore, the present invention solves the problem in the prior art of the lack of a consistent and specialized lithium slag solid waste resource recovery device for improving the grinding recovery efficiency of lithium slag particle powder.

[0042] Specifically, the transmission disc 22 is provided with a first annular rib 221, a second annular rib 222, and a third annular rib 223 from the inside to the outside, and a grinding disc 224 is provided at the center of the transmission disc 22. The first grinding component 24 and the first pushing component 25 are located between the grinding disc 224 and the first annular rib 221, the second grinding component 26 and the second pushing component 27 are located between the second annular rib 222 and the third annular rib 223, the first annular rib 221 and the second annular rib 222 are provided with an inclined surface 2211 on one side close to the grinding disc 224, and the filter 23 is provided between the second annular rib 222 and the third annular rib 223. In a specific implementation, multiple grinding areas are formed by providing multiple ribs to achieve a multi-stage grinding effect, and the transfer direction of the lithium slag between different grinding areas is controlled by limiting the inclined surfaces 2211 of different ribs, so as to prevent the lithium slag from being retained in the grinding area and unable to move to the filter 23 to be discharged with the wind.

[0043] In addition, the first grinding component 24 includes a connecting shaft 241 and a first grinding roller 242 disposed on the connecting shaft 241. The grinding disc 224 is connected to the drive shaft 211 of the first driving component 21, and the connecting shaft 241 is connected to the grinding disc 224. In a specific implementation, the first driving component 21 drives the grinding disc 224 to rotate, and the grinding disc 224 then drives the first grinding roller 242 to rotate, thereby grinding the lithium slag in the corresponding area.

[0044] Specifically, the first pusher component 25 includes a first inclined block 251 and a first inclined plate 252 disposed on the first inclined block 251. One side of the first inclined block 251 is connected to the grinding disc 224, and the first inclined plate 252 is obliquely disposed from the bottom of one side of the first inclined block 251 close to the grinding disc 224 to the top of the other side. During specific implementation, when the grinding disc 224 rotates, it drives the first inclined block 251 to rotate, so that the lithium slag in the corresponding area moves along the inclined surface 2211 of the first inclined block 251, and under the guidance of the first inclined plate 252, moves from the bottom to the top of the first inclined block 251 and away from the grinding disc 224, so that the lithium slag ground in this area moves outward to the next grinding area, thereby achieving a multi-stage grinding effect.

[0045] Furthermore, the second pusher component 27 includes a second inclined block 271, a first inclined plate 252 arranged on the second inclined block 271, and a C-shaped plate 272 for connecting the first inclined block 251 and the second inclined block 271. The C-shaped plate 272 is arranged across the first annular rib 221, and multiple C-shaped plates 272 are connected by an annular plate 273 to enable multiple second pusher components 27 to be linked. In addition, in a specific implementation, by setting the C-shaped plate 272, the second pusher component 27 and the first pusher component 25 are linked, so that the drive of multiple components can be achieved through one power source, thereby improving energy utilization efficiency. In addition, by setting the first inclined block 251, when the lithium slag is transported from the current area to the next area, it will not be immediately transported to the lower area under the action of the first bevel, but will be ground by the second grinding component 26 and then transported.

[0046] Furthermore, inclined surfaces 2211 are provided on both sides of the second annular rib 222, and a third pushing component 28 is provided between the second annular rib 222 and the third annular rib 223. The third pushing component 28 includes a third inclined block 281, a second inclined plate 282 and an L-shaped plate 283 arranged on the third inclined block 281, and the L-shaped plate 283 is used to connect the third inclined block 281 and the annular plate 273. The second inclined plate 282 and the first inclined plate 252 are in opposite directions. In addition, during the specific implementation, there is a situation where the particle size of the lithium slag particles after multi-stage grinding still does not meet the requirements. In addition, the lithium slag particles cannot be blown to the discharge component 40 by the blowing component 30, and may accumulate in the filter 23 area, affecting the subsequent grinding and discharge efficiency. Therefore, by setting a third pushing component 28, and the second inclined plate 282 and the first inclined edge on the third pushing component 28 are opposite, so that the third pushing component 28 will push the lithium slag particles accumulated at the filter 23 back to the second grinding component 26, so that the lithium slag is returned and ground again, thereby ensuring the effect and efficiency of the lithium slag grinding and avoiding the accumulation of lithium slag. In addition, during the specific implementation, the number of the third pushing component 28 can be much smaller than the second pushing component 27 and the first pushing component 25. This is because, under the action of multi-stage grinding, only a small number of lithium slag particles do not reach the target particle size. In addition, the third pushing member 28 and the second pushing member 27 are staggered to avoid the situation where the lithium slag is pushed to the filter 23 by the second pushing and pulling member and then immediately pushed back by the third pushing member 28, thereby ensuring the discharge efficiency of the lithium slag.

[0047] In addition, the second grinding member 26 includes a rotating shaft 261 and a second grinding roller 262 disposed on the rotating shaft 261, which is rotatably connected to the grinding disc 224 to drive the rotation of the second grinding roller 262. In a specific implementation, the rotating shaft 261 drives the second grinding roller 262 to rotate to achieve a secondary grinding effect on the lithium slag particles.

[0048] By way of example and not limitation, in some optional embodiments, the second grinding roller 262 includes a housing 2621, an eccentric roller 2622 disposed in the housing 2621, and a plurality of paddles 2623 disposed on the outside of the eccentric roller 2622. The housing 2621 is provided with a slide groove 2624 on the inside thereof to cooperate with the slide bars 2625 at both ends of the paddles 2623. The side wall of the housing 2621 is provided with an avoidance groove 2626 for adapting the paddles 2623. One end of the rotating shaft 261 is connected to the eccentric roller 2622. The outer side of the housing 2621 is provided with an F-shaped plate 263. One end of the F-shaped plate 263 clamps the housing 2621 at a latch and is rotatably connected to the housing 2621. The other end of the F-shaped plate 263 is connected to the grinding disc 224. The grinding disc 224 is hollow and the ring gear 225 is disposed within the grinding disc 224. In a specific implementation, the eccentric roller 2622 and the paddle 2623 are provided so that the eccentric roller 2622 rotates under the action of the rotating shaft 261, and the housing 2621 is driven to rotate by the F-shaped plate 263. As the housing 2621 rotates, the lithium slag particles are pushed to the bottom of the housing 2621 during the process of the paddle 2623 extending and retracting into the housing 2621, thereby improving the grinding effect and efficiency of the second grinding roller 262. In addition, the structural adjustment is only performed at the second grinding roller 262 because the second grinding roller 262 also needs to re-grind the lithium slag particles returned from the filter 23, so that the lithium slag particles required to be ground in this area are relatively more, and thus a higher grinding efficiency is required.

[0049] Specifically, a connecting column 50 is provided above the grinding disc 224, and a dispersion rod 60 is provided on the top of the connecting column 50. A plurality of dispersion rods 60 are equidistantly staggered around the axis of the connecting column 50. In a specific implementation, by providing the dispersion rod 60, the dispersion rod 60 is rotated with the grinding disc 224, and the lithium slag particles are dispersed under the impact of the dispersion rod 60 when entering the grinding barrel 10, thereby being evenly distributed to various parts of the first grinding area to avoid the accumulation of lithium slag particles in a local area of ​​the first grinding area, affecting the overall grinding efficiency, and excessive accumulation of lithium slag will also affect the grinding effect. In addition, when increasing the blowing force and frequency to clean the lithium slag adhered to the equipment, some of the lithium slag will also accumulate at the filter barrel 41, and then when the blowing returns to normal, the lithium slag accumulated at the filter barrel 41 falls downward under the action of gravity, and will also be evenly dispersed under the action of the dispersion rod 60. In addition, a connecting rod can be provided on the outside of the connecting column 50 to support the connecting guide cylinder 31, and a guide plate can be provided on the outside of the guide cylinder 31 to connect the grinding barrel 10 through the guide plate, and the area between the grinding barrel 10 and the guide cylinder 31 is divided into multiple discharge spaces, and corresponds to the filter screen 23 to improve the diversion effect and ensure the discharge efficiency.

[0050] In addition, the exhaust component 42 includes a rotating shaft 421 located at the center of the filter barrel 41 and a fan 422 provided on the rotating shaft 421. The rotating shaft 421 extends out of the filter barrel 41 at one end away from the fan 422 and is provided with an L-shaped scraper 423. The L-shaped scraper 423 is in contact with the outside of the filter barrel 41. In a specific implementation, by providing the rotating shaft 421 and the fan 422, the wind blown out by the blowing assembly 30 will drive the fan 422 to rotate, and then the fan 422 will further enhance the adsorption force at the discharge pipe 11 to improve the discharge efficiency of the lithium slag powder. In addition, by providing the L-shaped scraper 423, the L-shaped scraper 423 will rotate with the fan 422, thereby cleaning the lithium slag powder accumulated on the outside of the filter barrel 41 to ensure the discharge efficiency of the lithium slag powder and prevent the lithium slag powder from adhering to the lithium slag particles, which affects the grinding and discharge efficiency of the lithium slag particles.

[0051] In summary, the present invention uses the grinding assembly 20 to allow multiple grinding components and pusher components in the grinding assembly 20 to cooperate with each other to grind the lithium slag particles through multiple levels of grinding components in sequence and move them to the next grinding area, so that the lithium slag particles are ground to the target particle size until the filter 23, and then the blowing assembly 30 on the bottom of the grinding barrel 10 is continuously blown to the area at the filter 23, so that the lithium slag powder that meets the target particle diameter will be blown up, and then the lithium slag powder will move along the guide tube 31 to the discharge assembly 40 for discharge under the action of the gas fluid, while the lithium slag that does not meet the particle size will not be blown, and will be pushed to the grinding component under the action of the pusher component for further grinding, thereby ensuring that the lithium slag powder discharged by the discharge component is uniform in particle size and meets the required lithium slag powder particles. In addition, a filter barrel 41 is also provided at the discharge assembly 40 to further ensure that the discharged lithium slag powder is ultrafine target powder. In addition, the blowing amplitude and frequency of the blowing assembly 30 can be adjusted when necessary, so that the pulsed blowing vibration effect can prevent the lithium slag powder from adhering to the equipment and affecting the grinding efficiency. When the blowing cleaning is performed, the lithium slag that is not in accordance with the particle size is carried to the filter barrel 41 and is blocked by the filter barrel 41 and will not flow out of the discharge pipe 11. When the wind force of the blowing assembly 30 is normal, the lithium slag that is not in accordance with the particle size will fall back to the grinding assembly 20 under the action of gravity and be ground. Therefore, the present invention solves the problem in the prior art of the lack of a consistent and specialized lithium slag solid waste resource recovery device for improving the grinding recovery efficiency of lithium slag particle powder.

[0052] Throughout this specification, references to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. Throughout this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0053] The above embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A lithium slag solid waste resource recovery device, characterized in that: It includes a grinding barrel, a grinding assembly and a blowing assembly arranged in the grinding barrel, and a discharging assembly arranged on the top of the grinding barrel; The grinding assembly includes a first driving component arranged below the grinding barrel, a transmission disc arranged in the grinding barrel, and a plurality of grinding components and a pushing component arranged on the transmission disc. A filter screen is provided on the outer side of the transmission disc. The grinding components are used to grind the lithium slag on the transmission disc, and the pushing components are used to push the ground lithium slag to the filter screen. The air blowing assembly includes a guide cylinder arranged in the grinding barrel, a second driving component arranged below the grinding barrel, and an air guide pipe connected to the filter screen, wherein the filter screen is located between the guide cylinder and the grinding barrel, and the second driving component blows the lithium powder of the target particle size on the filter screen along the guide cylinder to the discharge assembly through the air guide pipe; The discharge assembly is arranged in a discharge pipe above the grinding barrel, and the discharge assembly includes a filter barrel located at the inlet of the discharge pipe and an air extraction component arranged at the filter barrel.

2. The lithium slag solid waste resource recovery device according to claim 1, characterized in that: The transmission disc is provided with a first annular rib, a second annular rib and a third annular rib from the inside to the outside, and a grinding disc is arranged in the center of the transmission disc, the first grinding component and the first pushing component are located between the grinding disc and the first annular rib, the second grinding component and the second pushing component are located between the second annular rib and the third annular rib, the first annular rib and the second annular rib are provided with an inclined surface on the side close to the grinding disc, and the filter is arranged between the second annular rib and the third annular rib.

3. The lithium slag solid waste resource recovery device according to claim 2, characterized in that: The first grinding component includes a connecting shaft and a first grinding roller arranged on the connecting shaft. The grinding disc is connected to the driving shaft of the first driving component, and the connecting shaft is connected to the grinding disc.

4. The lithium slag solid waste resource recovery device according to claim 2, characterized in that: The first pusher component includes a first inclined block and a first inclined plate arranged on the first inclined block. One side of the first inclined block is connected to the grinding disc. The first inclined plate is inclined from the bottom of one side of the first inclined block close to the grinding disc to the top of the other side.

5. The lithium slag solid waste resource recovery device according to claim 4, characterized in that: The second pushing component includes a second inclined block, the first inclined plate arranged on the second inclined block, and a C-shaped plate for connecting the first inclined block and the second inclined block. The C-shaped plate is arranged across the first annular rib, and multiple C-shaped plates are connected by an annular plate to enable multiple second pushing components to be linked.

6. The lithium slag solid waste resource recovery device according to claim 5, characterized in that: The inclined surfaces are provided on both sides of the second annular rib, and a third pushing component is provided between the second annular rib and the third annular rib. The third pushing component includes a third inclined block, a second inclined plate and an L-shaped plate arranged on the third inclined block. The L-shaped plate is used to connect the third inclined block and the annular plate, and the second inclined plate and the first inclined plate are in opposite directions.

7. The lithium slag solid waste resource recovery device according to claim 3, characterized in that: The second grinding component includes a rotating shaft and a second grinding roller arranged on the rotating shaft, and the rotation is transmission-connected with the grinding disc to drive the second grinding roller to rotate.

8. The lithium slag solid waste resource recovery device according to claim 7, characterized in that: The second grinding roller includes a shell, an eccentric roller arranged in the shell and a plurality of paddles arranged on the outside of the eccentric roller. A slide groove is provided on the inner side of the shell to cooperate with the slide rods at both ends of the paddle, and an avoidance groove is provided on the side wall of the shell to adapt to the paddle. One end of the rotating shaft is connected to the eccentric roller, and the other end is provided with a gear to adapt to the gear ring on the transmission disk, so that the rotation drives the eccentric roller to rotate, so that the paddle extends or retracts into the shell. An F-shaped plate is provided on the outside of the shell, one end of the F-shaped plate clamps the shell at the bayonet and is rotatably connected to the shell, and the other end is connected to the grinding disk. The grinding disk is hollow and the gear ring is arranged inside the grinding disk.

9. The lithium slag solid waste resource recovery device according to claim 2, characterized in that: A connecting column is provided above the grinding disc, and a dispersion rod is provided on the top of the connecting column. A plurality of the dispersion rods are equidistantly staggered around the axis of the connecting column.

10. The lithium slag solid waste resource recovery device according to any one of claims 1 to 9, characterized in that: The exhaust component includes a rotating shaft located at the center of the filter barrel and a fan arranged on the rotating shaft. The rotating shaft extends out of the filter barrel at one end away from the fan and is provided with an L-shaped scraper, which is in contact with the outer side of the filter barrel.

Images