A lithium smelting slag pretreatment device

Abstract

The utility model relates to lithium smelting slag pretreatment technical field, concretely relates to a kind of lithium smelting slag pretreatment device, including processing box, supporting leg, feed hopper, first motor, crushing roller, crushing bead, connecting plate and crushing plate etc., supporting leg is symmetrically installed in processing box bottom front and back both sides left and right, feed hopper is equipped in processing box top left side, first motor is fixedly connected with in processing box top middle part, the output shaft of first motor is downward and is connected with three crushing rollers, each crushing roller surface is equipped with multiple crushing beads, connecting plate is fixedly connected respectively in processing box inner upper portion left and right sides, and crushing plate is equipped between the bottom of two connecting plates.The utility model is driven by first motor, and the crushing roller with crushing bead is matched with the crushing plate with sieve hole and metal filter screen, realizes extrusion, impact and dynamic screening, reaches crushing and grading simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of lithium smelting slag pretreatment technology, and in particular to a lithium smelting slag pretreatment device. Background Technology

[0002] In the extraction and processing of lithium resources, lithium smelting slag, as a solid residue after high-temperature roasting or smelting, contains a certain amount of residual lithium and recyclable components. It needs to be pretreated before it can enter subsequent leaching, purification and other processes. The lithium smelting slag pretreatment device is a key piece of equipment specifically designed for the physical modification of this type of slag. It mainly undertakes the tasks of crushing, particle size classification and preliminary purification of the cooled slag. Its treatment effect directly affects the reaction rate, leaching efficiency and metal recovery rate of subsequent chemical lithium extraction. This device is widely used in lithium extraction production lines of minerals such as spodumene and lepidolite, and is an important front-end equipment for realizing the efficient and comprehensive utilization of lithium resources.

[0003] However, existing lithium smelting slag pretreatment devices generally suffer from the problems of separation of crushing and screening functions and low efficiency. Most devices use a combination of a single crusher and an independent vibrating screen, which results in a long process, large footprint, and dust and blockage during material transfer. Some devices' screens are easily damaged by fine powder adhesion or impact from large particles, leading to a decrease in screening efficiency and the occurrence of material leakage or accumulation. At the same time, traditional devices lack a synergistic mechanism for crushing and screening, making it difficult to achieve "crushing and screening simultaneously." This results in repeated compression of large pieces of material, high energy consumption and low efficiency, and fine materials cannot be discharged in time, affecting the overall processing capacity.

[0004] Therefore, it is necessary to design a lithium smelting slag pretreatment device to solve the above-mentioned technical problems. Utility Model Content

[0005] To overcome the shortcomings of existing crushing and screening separation devices, such as long process flow, large footprint, easy dust and blockage during transportation, easy clogging and damage of screens, low efficiency, lack of simultaneous crushing and screening function, repeated compression of large pieces, high energy consumption, and poor discharge of fine materials, which affect the processing efficiency, this utility model provides a lithium smelting slag pretreatment device.

[0006] Technical solution: A lithium smelting slag pretreatment device includes a treatment box, support legs, a feed hopper, a first motor, crushing rollers, crushing beads, connecting plates, a crushing plate, and a controller. Support legs are symmetrically installed on both the front and rear sides of the bottom of the treatment box. A feed hopper is located on the left side of the top of the treatment box. The first motor is fixedly connected to the middle of the top of the treatment box. The output shaft of the first motor passes downward into the interior of the treatment box and is connected to three crushing rollers. Each crushing roller has multiple crushing beads on its surface. Connecting plates are fixedly connected to the upper left and right sides of the interior of the treatment box. A crushing plate is located between the bottom of two connecting plates. The crushing rollers are located above the crushing plate and in contact with its surface. Multiple screen holes are evenly opened on the crushing plate. A metal filter screen is installed in each screen hole. A controller is installed on the front left side of the middle of the treatment box. The controller is electrically connected to the first motor.

[0007] In one embodiment, the processing box, crushing roller, and crushing plate are all made of stainless steel.

[0008] In one embodiment, the device further includes a second motor, a fine crushing roller, and a large gear. The second motor is fixedly connected to the left rear side of the middle of the processing box. Fine crushing rollers are rotatably connected to the front and rear sides of the middle of the processing box. The output shaft of the second motor passes through the processing box to the right and is connected to the left end of the rear fine crushing roller. Large gears are fixedly connected to the left side of both fine crushing rollers. The two large gears mesh with each other. The controller is electrically connected to the second motor.

[0009] In one embodiment, the system also includes a discharge plate and a collection box. The discharge plate is located at the lower part of the processing box and is inclined at the front and back. A discharge chute is provided at the lower front part of the processing box. A collection box is slidably placed at the lower front part of the processing box and is located below the discharge chute. A handle is provided on the left side of the collection box.

[0010] In one embodiment, the device further includes a protective shell, a dual-axis motor, a first bevel gear, a lead screw, a second bevel gear, and a scraper. The protective shell is installed in the middle of the rear of the processing box. The dual-axis motor is fixedly connected to the middle of the protective shell. The output shafts on both sides of the dual-axis motor are connected to the first bevel gear. The left and right sides of the lower part of the processing box are rotatably connected to the lead screws. The rear ends of the two lead screws extend backward and penetrate into the interior of the protective shell. The rear ends of the two lead screws are fixedly connected to the second bevel gear. The first bevel gear and the second bevel gear mesh with each other. A scraper is threaded between the two lead screws. The bottom of the scraper slides in contact with the surface of the discharge plate. The controller is electrically connected to the dual-axis motor.

[0011] In one embodiment, a transparent window is also included, with the transparent window fixedly connected to the front middle and front upper side of the processing box.

[0012] The present invention has the following advantages: 1. The present invention uses a first motor to drive a crushing roller with crushing beads to cooperate with a crushing plate with screen holes and a metal filter screen to achieve extrusion, impact and dynamic screening, so as to achieve simultaneous crushing and grading, and solve the problems of incomplete crushing, low screening efficiency and easy clogging of traditional devices.

[0013] 2. This utility model uses a second motor to drive the fine crushing roller to rotate in the opposite direction under the meshing of the large gear, so as to perform secondary shearing and crushing of large particles. Combined with the synergistic effect of crushing beads and crushing plates, multi-stage crushing is achieved, which improves the uniformity of output and the fineness of materials, and enhances the efficiency of subsequent leaching.

[0014] 3. This utility model uses a dual-shaft motor to drive bevel gear one and bevel gear two to mesh, which drives the lead screw to rotate and pushes the scraper to reciprocate on the surface of the discharge plate to remove accumulated material and adhering substances. With the discharge plate, which is inclined at the front and high at the back, and the collection box slidingly set, it achieves the effect of smooth material discharge, easy cleaning and stable operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a structural schematic diagram of the components of this utility model, including the crushing roller, crushing beads, and connecting plate.

[0017] Figure 3 This is a schematic diagram of the structure of the second motor, fine crushing roller, gears, and other components of this utility model.

[0018] Figure 4 This is a structural schematic diagram of the components of this utility model, including the material discharge plate, the discharge trough, and the collection box.

[0019] Figure 5 This is a schematic diagram of the structure of the bevel gear I, lead screw, and bevel gear II components of this utility model.

[0020] In the attached diagram, the following are the reference numerals: 1. Processing box; 2. Support leg; 3. Feed hopper; 4. First motor; 5. Crushing roller; 6. Crushing beads; 7. Connecting plate; 8. Crushing plate; 9. Controller; 10. Second motor; 11. Fine crushing roller; 12. Large gear; 13. Drop plate; 14. Discharge chute; 15. Collection box; 16. Protective shell; 17. Dual-shaft motor; 18. Bevel gear one; 19. Lead screw; 20. Bevel gear two; 21. Scraper; 22. Transparent window. Detailed Implementation

[0021] Example: A lithium smelting slag pretreatment device, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the device includes a processing box 1, support legs 2, a feed hopper 3, a first motor 4, crushing rollers 5, crushing beads 6, connecting plates 7, crushing plates 8, and a controller 9. Support legs 2 are symmetrically installed on the front and rear sides of the bottom of the processing box 1. A feed hopper 3 is located on the left side of the top of the processing box 1. The first motor 4 is bolted to the top center of the processing box 1. The output shaft of the first motor 4 passes downward into the processing box 1 and is connected to three crushing rollers 5. Each crushing roller 5 has multiple crushing beads 6 on its surface. Connecting plates 7 are bolted to the upper left and right sides of the processing box 1. A crushing plate 8 is located between the bottoms of two connecting plates 7. The crushing rollers 5 are located above the crushing plate 8 and in contact with its surface. Multiple screen holes are evenly opened on the crushing plate 8. Each screen hole contains a metal filter screen. The processing box 1, crushing rollers 5, and crushing plates 8 are all made of stainless steel. A controller 9 is installed on the front left side of the middle of the processing box 1. The controller 9 is electrically connected to the first motor 4.

[0022] like Figure 1 and Figure 3 As shown, it also includes a second motor 10, a fine crushing roller 11, and a large gear 12. The second motor 10 is bolted to the left rear side of the middle of the processing box 1. The fine crushing roller 11 is rotatably connected to the front and rear sides of the middle of the processing box 1. The output shaft of the second motor 10 passes into the processing box 1 to the right and is connected to the left end of the rear fine crushing roller 11. The left sides of the two fine crushing rollers 11 are welded to the large gear 12. The two large gears 12 mesh with each other. The controller 9 is electrically connected to the second motor 10.

[0023] like Figure 1 , Figure 4 and Figure 5 As shown, it also includes a discharge plate 13 and a collection box 15. The discharge plate 13 is provided in the lower part of the processing box 1. The discharge plate 13 is inclined in the shape of being lower in the front and higher in the back. A discharge chute 14 is provided in the lower front part of the processing box 1. The collection box 15 is slidably placed in the lower front part of the processing box 1. The collection box 15 is located in front of and below the discharge chute 14. A handle is provided on the left side of the collection box 15.

[0024] like Figure 4 and Figure 5As shown, it also includes a protective shell 16, a dual-axis motor 17, a first bevel gear 18, a lead screw 19, a second bevel gear 20, and a scraper 21. The protective shell 16 is installed in the middle of the rear of the processing box 1. The dual-axis motor 17 is installed in the middle of the protective shell 16 by bolts. The output shafts on both sides of the dual-axis motor 17 are connected to the first bevel gear 18. The left and right sides of the lower part of the processing box 1 are respectively rotatably connected to the lead screw 19. The rear ends of the two lead screws 19 extend backward and penetrate into the interior of the protective shell 16. The rear ends of the two lead screws 19 are respectively connected to the second bevel gear 20 by welding. The first bevel gear 18 and the second bevel gear 20 mesh with each other. The scraper 21 is threaded between the two lead screws 19. The bottom of the scraper 21 slides in contact with the surface of the discharge plate 13. The controller 9 is electrically connected to the dual-axis motor 17.

[0025] like Figure 1 and Figure 4 As shown, it also includes a transparent window 22, which is glued to the front middle and front upper side of the processing box 1.

[0026] When this device is needed, firstly, the lithium smelting slag after high temperature cooling is put into the feed hopper 3 at the top of the processing box 1. The material falls onto the crushing plate 8 by gravity. At this time, the first motor 4 is started, and its output shaft rotates to drive the three crushing rollers 5 to rotate synchronously. Each crushing roller 5 has multiple crushing beads 6 on its surface. During the rotation, the falling blocky smelting slag is squeezed, impacted and crushed to achieve preliminary crushing. Multiple screen holes are evenly opened on the surface of the crushing plate 8. Each screen hole is equipped with a metal filter screen. Since the crushing roller 5 is in continuous contact with the surface of the crushing plate 8 during the rotation, on the one hand, the crushing effect on large pieces of material is further enhanced, and on the other hand, the vibration generated by its relative motion causes fine material to pass through the screen holes in time and fall down, while the larger particles of residue are blocked on the crushing plate 8 by the metal filter screen and continue to be crushed.

[0027] Meanwhile, large particles or metal impurities that are not completely crushed may enter the middle area of ​​the processing box 1 with the material flow. At this time, the second motor 10 is started, and the output shaft of the second motor 10 drives the rear fine crushing roller 11 to rotate. Through the transmission of two meshing large gears 12, the front and rear fine crushing rollers 11 achieve synchronous rotation in opposite directions, performing secondary shearing and crushing on the remaining large slag, improving the overall crushing efficiency and the uniformity of the output. The crushed material falls onto the discharge plate 13, which is inclined at the front and higher at the back, facilitating the material to fall onto the discharge plate 13. Under the influence of gravity, the material slides forward and downward and is eventually discharged through the discharge chute 14. To prevent the material from accumulating or clogging on the surface of the discharge plate 13, the controller 9 synchronously starts the dual-axis motor 17. The output shafts on the left and right sides of the dual-axis motor 17 drive the first bevel gear 18 to rotate, which in turn drives the two lead screws 19 to rotate synchronously through the second bevel gear 20 meshing with it. Since the scraper 21 is connected between the two lead screws 19 by threads, the rotation of the lead screws 19 causes the scraper 21 to move horizontally back and forth along the surface of the discharge plate 13, continuously removing the adhering or accumulated material and ensuring smooth discharge.

[0028] During equipment operation, operators can observe the internal crushing and material flow in real time through the transparent windows 22 at the front middle and upper front of the processing box 1, which facilitates timely detection of blockages or abnormalities. Fine materials that meet the particle size requirements slide into the collection box 15 through the discharge chute 14. The collection box 15 can be slid outwards by the handle for easy centralized transfer to the next lithium extraction process. The entire pretreatment process is uniformly controlled by the controller 9. The first motor 4, the second motor 10, and the dual-shaft motor 17 operate in coordination according to the set program to ensure continuous and stable operation of each crushing and cleaning stage. The processing box 1, crushing roller 5, and crushing plate 8 are all made of stainless steel, which has good corrosion resistance and wear resistance and is suitable for the alkaline and high-temperature characteristics of lithium smelting slag.

Claims

1. A lithium smelter slag pre-treatment apparatus, characterized by, The device includes a processing box (1), support legs (2), a feed hopper (3), a first motor (4), crushing rollers (5), crushing beads (6), connecting plates (7), crushing plates (8), and a controller (9). Support legs (2) are symmetrically installed on the front and rear sides of the bottom of the processing box (1). A feed hopper (3) is provided on the left side of the top of the processing box (1). The first motor (4) is fixedly connected to the top center of the processing box (1). The output shaft of the first motor (4) passes downward into the processing box (1) and is connected to three crushing rollers (5). Each crushing roller (5) has multiple crushing beads (6) on its surface. Connecting plates (7) are fixedly connected to the upper left and right sides of the processing box (1). A crushing plate (8) is provided between the bottom of the two connecting plates (7). The crushing rollers (5) are located above the crushing plate (8) and in contact with its surface. Multiple screen holes are evenly opened on the crushing plate (8). Each screen hole is provided with a metal filter screen. A controller (9) is installed on the left front side of the middle of the processing box (1). The controller (9) is electrically connected to the first motor (4).

2. A lithium smelter slag pretreatment apparatus as claimed in claim 1, characterized in that, The processing box (1), crushing roller (5) and crushing plate (8) are all made of stainless steel.

3. A lithium smelter slag pretreatment apparatus as claimed in claim 2, characterized in that, It also includes a second motor (10), a fine crushing roller (11) and a large gear (12). The second motor (10) is fixedly connected to the left rear side of the middle part of the processing box (1). The fine crushing roller (11) is rotatably connected to the front and rear sides of the middle part of the processing box (1). The output shaft of the second motor (10) passes into the processing box (1) to the right and is connected to the left end of the rear fine crushing roller (11). The large gear (12) is fixedly connected to the left side of both fine crushing rollers (11). The two large gears (12) mesh with each other. The controller (9) is electrically connected to the second motor (10).

4. A lithium smelter slag pretreatment apparatus as claimed in claim 3, characterized in that, It also includes a material drop plate (13) and a collection box (15). The material drop plate (13) is provided in the lower part of the processing box (1). The material drop plate (13) is inclined in the shape of being lower in the front and higher in the back. The discharge chute (14) is opened in the lower front part of the processing box (1). The collection box (15) is slidably placed in the lower front part of the processing box (1). The collection box (15) is located in front of and below the discharge chute (14). The left side of the collection box (15) is provided with a handle.

5. A lithium smelter slag pretreatment apparatus as claimed in claim 4, characterised in that, It also includes a protective shell (16), a dual-axis motor (17), a bevel gear one (18), a lead screw (19), a bevel gear two (20), and a scraper (21). The protective shell (16) is installed in the middle of the rear of the processing box (1). The dual-axis motor (17) is fixedly connected in the middle of the protective shell (16). The output shafts on both sides of the dual-axis motor (17) are connected to the bevel gear one (18). The lead screw (19) is rotatably connected to the lower left and right sides of the processing box (1). The rear ends of the two lead screws (19) extend backward to penetrate into the protective shell (16). The rear ends of the two lead screws (19) are fixedly connected to the bevel gear two (20). The bevel gear one (18) and the bevel gear two (20) mesh with each other. The scraper (21) is threaded between the two lead screws (19). The bottom of the scraper (21) slides in contact with the surface of the discharge plate (13). The controller (9) is electrically connected to the dual-axis motor (17).

6. The lithium smelting slag pretreatment device as described in claim 5, characterized in that, The transparent window (22) is fixedly connected to the front middle part and the front upper side of the processing box (1).

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