An alkyl lithium solution refining and filtering device

Abstract

The present invention discloses a refining and filtering device for alkyl lithium solution, which relates to the technical field of alkyl lithium solution refining. This kind of refining and filtering device for alkyl lithium solution includes a filtering box, on which a plurality of feed pipes are installed. A collection box is arranged on one side of the filtering box, and a conveying pipe for transporting metal lithium raw materials is connected between the collection box and the filtering box, and one end of the conveying pipe is located at the upper end of the filtering box. In the process of refining the alkyl lithium solution by this kind of refining and filtering device for alkyl lithium solution, through the reflux assembly, it is convenient to dissipate the heat generated during the preparation to the outside, so that the temperature inside the filtering box remains relatively low during the preparation of the alkyl lithium solution, avoiding the excessive temperature inside the filtering box, which causes the chloroalkane generated during the preparation of the alkyl lithium solution to react with the alkyl lithium to form by-products, ensuring the purity during the preparation process of the alkyl lithium solution and facilitating the refining and processing of the alkyl lithium solution.

Description

Technical Field

[0001] The present invention relates to the technical field of alkyl lithium solution refining, and specifically provides a refining and filtering device for alkyl lithium solution. Background Art

[0002] Alkyl lithium is a lithium alkyl derivative with the general formula RLi, where R is a straight-chain or branched-chain alkyl group, cycloalkyl group or aryl group, such as methyl lithium, ethyl lithium, propyl lithium, isopropyl lithium, n-butyl lithium, sec-butyl lithium, tert-butyl lithium, pentyl lithium, hexyl lithium, cyclohexyl lithium, tert-octyl lithium, n-eicosyl lithium, phenyl lithium, methyl phenyl lithium, butyl phenyl lithium, naphthyl lithium, butyl cyclohexyl lithium, etc. They are commonly used as reagents, and among them, n-butyl lithium solution is the most commonly used.

[0003] Alkyl lithium has the properties of typical covalent substances. Some are soluble in hydrocarbons, such as ethyl lithium; some are insoluble in hydrocarbons, such as methyl lithium. Alkyl lithium is a liquid or low-melting solid at room temperature, and there is a molecular association effect in the solution. It can react rapidly with oxygen, so it will spontaneously ignite in the air and react with liquid water and water vapor. Alkyl lithium can carry out addition reactions on carbonyl compounds, and can also carry out substitution reactions on active hydrogens (but does not react with chloroarenes), as well as halogen-lithium exchange reactions. Its reaction performance is more extensive and diverse than that of general Grignard reagents. The metal lithium derivatives formed by it and a variety of metal organic compounds are widely used in organic synthesis. Methyl lithium and copper methyl in an ether solution form dimethyl copper lithium (CH3)2CuLi, which is an extremely important methylation reagent. It can carry out the reaction of substituting halogen with methyl on unsaturated or aromatic halogen compounds. The (CH3)3SiLi formed by the reaction of lithium with trimethylchlorosilane is an important silylating reagent and has various uses for protecting enols or hydroxyl groups.

[0004] Referring to a synthesis process of alkyl lithium with the patent number CN101805360B, in the refining process of alkyl lithium, an excessive amount of metal lithium reacts with chloroalkane to generate alkyl lithium. However, in the refining production process, as the concentration of the generated alkyl lithium increases and the reaction temperature rises, the chloroalkane reacts with the alkyl lithium again, forming side reactions, reducing the purity of the filtered alkyl lithium after refining, and making it inconvenient for the filtering and refining operation of alkyl lithium. Summary of the Invention

[0005] The purpose of the present invention is to provide a refining and filtering device for alkyl lithium solution to solve the problems raised in the above background art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an alkyl lithium solution refining and filtering device, comprising a filter box, a plurality of feed pipes are installed on the filter box, a collecting box is arranged on one side of the filter box, a conveying pipe for conveying metal lithium raw materials is connected between the collecting box and the filter box, one end of the conveying pipe is located at the upper end of the filter box, a fan is installed on the conveying pipe, a filtering component for filtering during the preparation of alkyl lithium solution and a reflux component for reducing the generation of side reactions during the preparation process are arranged inside the filter box, a discharging component for discharging during the refining process of the alkyl lithium solution is arranged on the filter box, and a recovery component for recovering lithium raw materials after the reaction is arranged between the collecting box and the filter box;

[0007] The filter assembly comprises a filter plate installed inside the filter box, and a sponge plate is arranged on the upper end of the filter plate.

[0008] Preferably, the reflux assembly includes a U-shaped tube installed on the outside of the filter box, the two ends of the U-shaped tube are respectively connected to the two sides of the filter box, the U-shaped tube is rotatably connected to a rotating shaft, a first motor for driving the rotating shaft is installed on the U-shaped tube, a rotating rod is rotatably connected to the inside of the U-shaped tube, a fan blade is fixed to one end of the rotating rod, a first bevel gear is fixed to the rotating shaft, a second bevel gear is fixed to one end of the rotating rod, and the first bevel gear and the second bevel gear are meshed with each other.

[0009] Preferably, the discharge assembly includes a strip plate arranged inside the filter box, a plurality of extrusion assemblies are arranged at the lower end of the strip plate, and the extrusion assemblies are arranged alternately up and down in the horizontal direction, the extrusion assembly includes a slide bar fixed on the strip plate, a sleeve is slidably connected to the slide bar, a pressure plate is fixed to the other end of the sleeve, a discharge pipe for discharging is installed at the lower end of the filter box, and a lifting assembly for lifting the strip plate and a guide assembly for guiding during the lifting process are provided on the filter box.

[0010] Preferably, the lifting assembly includes a threaded rod rotatably connected to the inside of the filter box, a threaded tube is threadedly engaged on the threaded rod, the other end of the threaded tube is fixed to the upper end of the strip plate, and a second motor for driving the threaded rod is installed on the upper end of the filter box.

[0011] Preferably, the guide assembly comprises a sleeve fixed to the upper end of the strip plate, a guide rod is slidably connected to the sleeve, and one end of the guide rod is fixed to the inner wall of the filter box.

[0012] Preferably, the recycling component includes a first operating shaft rotatably connected inside the filtration tank, the filter plate is fixed on the first operating shaft, a third motor for driving the first operating shaft is installed outside the filtration tank, a feed inlet is connected in communication between the filtration tank and the collection tank, a plugging component for plugging the feed inlet is arranged inside the filtration tank, and a vibration component for vibrating during the recycling process is arranged at the lower end of the filter plate.

[0013] Preferably, the plugging component includes a second operating shaft rotatably connected inside the filtration tank, a plugging plate for plugging the feed inlet is fixed on the second operating shaft, and a fourth motor for driving the second operating shaft is installed outside the filtration tank.

[0014] Preferably, the vibration component includes a mounting plate arranged below the filter plate, two support plates are fixed at the lower end of the filter plate, a T-shaped rod is slidably connected on the two support plates, one ends of the two T-shaped rods are fixed with a connecting plate, both ends of the two connecting plates are respectively fixed with the two sides of the mounting plate, a first spring is sleeved on the side walls of the two T-shaped rods, a plurality of vibrating members for vibrating the filter plate are arranged at the upper end of the mounting plate, each of the vibrating members is arranged horizontally, a fixing pin is fixed at one end of the mounting plate, and an intermittent transmission component for intermittently driving the fixing pin is arranged on the filtration tank.

[0015] Preferably, the vibrating member includes a rubber plate fixed at the upper end of the mounting plate, a vibrating plate is installed on the rubber plate, a square groove is opened at the lower end of the filter plate, one end of the vibrating plate is located inside the square groove, and an arc surface is opened at the end of the vibrating plate that abuts against the square groove.

[0016] Preferably, the intermittent transmission component includes a plurality of transmission rods slidably connected on the filtration tank, second transmission plates and first transmission plates are respectively fixed at both ends of the transmission rods located inside and outside the filtration tank, one end of the fixing pin abuts against the second transmission plate, a second spring is sleeved on the side walls of each of the transmission rods, and a cam for squeezing and pushing the first transmission plate is installed at one end of the rotating shaft.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] (1). In the process of refining and filtering the alkyl lithium solution by this alkyl lithium solution refining and filtering equipment, through the reflux component, it is convenient to dissipate the heat generated during the preparation to the outside, so that the temperature inside the filtration tank is kept relatively low during the preparation of the alkyl lithium solution, avoiding the temperature inside the filtration tank being too high, resulting in the chloroalkane generated during the preparation of the alkyl lithium solution reacting with the alkyl lithium to form by-products, ensuring the purity during the preparation process of the alkyl lithium solution, and facilitating the refining and processing of the alkyl lithium solution.

[0019] (2) After the refining of the alkyllithium solution, the excess metallic lithium prepared is recovered through the recovery component and the vibration component, which is more convenient for the collection operation of the metallic lithium after the reaction of the alkyllithium solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the overall external structure of the present invention;

[0021] Figure 2 Schematic diagram of the reflux component and the intermittent drive component of the present invention;

[0022] Figure 3 Schematic diagram of the discharge component, the lifting component and the guiding component of the present invention;

[0023] Figure 4 Schematic diagram of the vibration component and the vibrating part of the present invention;

[0024] Figure 5 Schematic diagram of the vibrating part of the present invention;

[0025] Figure 6 Schematic diagram of the recovery component and the plugging component of the present invention;

[0026] Figure 7 is Figure 1 The enlarged structural schematic diagram at A in;

[0027] Figure 8 is Figure 2 The enlarged structural schematic diagram at B in;

[0028] Figure 9 is Figure 3 The enlarged structural schematic diagram at C in;

[0029] Figure 10 is Figure 4 The enlarged structural schematic diagram at D in;

[0030] Figure 11 is Figure 5 The enlarged structural schematic diagram at E in.

[0031] In the figure: 1. Filter box; 2. Collection box; 3. Feed pipe; 4. Delivery pipe; 5. Fan; 6. Filter assembly; 601. Filter plate; 602. Sponge plate; 7. Return flow assembly; 701. U-shaped pipe; 702. Rotating shaft; 703. First motor; 704. Rotating rod; 705. Fan blade; 706. First bevel gear; 707. Second bevel gear; 8. Discharge assembly; 801. Strip plate; 802. Slide bar; 803. Sleeve; 804. Pressing plate; 805. Discharge pipe; 9. Lifting assembly; 901. Threaded rod; 902. Threaded pipe; 903. Second motor; 10. Guide assembly; 1001. Guide rod; 1002. Sleeve; 11. Recycling assembly; 1101. First operating shaft; 1102. Third motor; 1103. Feed inlet; 12. Sealing assembly; 1201. Second operating shaft; 1202. Sealing plate; 1203. Fourth motor; 13. Vibration assembly; 1301. Support plate; 1302. T-shaped rod; 1303. Connecting plate; 1304. First spring; 1305. Mounting plate; 1306. Fixed pin; 14. Vibration part; 1401. Rubber plate; 1402. Vibration plate; 1403. Square groove; 15. Intermittent drive assembly; 1501. Drive rod; 1502. First drive plate; 1503. Second drive plate; 1504. Second spring; 1505. Cam. Detailed implementation mode

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0033] Please refer to Figures 1 - 11 , the present invention provides a technical solution: a refined filtration device for alkyl lithium solution, including a filter box 1, a plurality of feed pipes 3 are installed on the filter box 1, a collection box 2 is arranged on one side of the filter box 1, a delivery pipe 4 for transporting metal lithium raw materials is connected between the collection box 2 and the filter box 1, one end of the delivery pipe 4 is located at the upper end of the filter box 1, a fan 5 is installed on the delivery pipe 4, a filter assembly 6 for filtering during the refined preparation process of alkyl lithium solution and a return flow assembly 7 for reducing side reactions during the preparation process are arranged inside the filter box 1, a discharge assembly 8 for discharging during the refined process of alkyl lithium solution is arranged on the filter box 1, and a recycling assembly 11 for recycling lithium raw materials after the reaction is arranged between the collection box 2 and the filter box 1;

[0034] The filtration component 6 includes a filter plate 601 installed inside the filtration tank 1. A sponge plate 602 is arranged at the upper end of the filter plate 601. During the refining process of the alkyl lithium solution, through the reflux component 7, it is convenient to dissipate the heat generated during the preparation outward, so that the temperature inside the filtration tank 1 remains relatively low during the preparation of the alkyl lithium solution, avoiding the excessive temperature inside the filtration tank 1, which may cause the chloroalkane generated during the preparation of the alkyl lithium solution to react with the alkyl lithium to form by-products, ensuring the purity during the preparation process of the alkyl lithium solution and facilitating the refining process of the alkyl lithium solution.

[0035] Please refer to Figure 1 , Figure 2 , Figure 7 and Figure 8 , the reflux component 7 includes a U-shaped tube 701 installed outside the filtration tank 1. The two ends of the U-shaped tube 701 are respectively connected to both sides of the filtration tank 1. A rotating shaft 702 is rotatably connected to the U-shaped tube 701. A first motor 703 for driving the rotating shaft 702 is installed on the U-shaped tube 701. A rotating rod 704 is rotatably connected to the inside of the U-shaped tube 701. A fan blade 705 is fixed at one end of the rotating rod 704. A first bevel gear 706 is fixed on the rotating shaft 702. A second bevel gear 707 is fixed at one end of the rotating rod 704. The first bevel gear 706 and the second bevel gear 707 are meshed with each other. Start the first motor 703 on the U-shaped tube 701. Drive the rotating shaft 702 to rotate through the first motor 703. During the rotation of the rotating shaft 702, drive the first bevel gear 706 to rotate. During the rotation of the first bevel gear 706, through the meshing transmission between the first bevel gear 706 and the second bevel gear 707, drive the rotating rod 704 and the fan blade 705 at one end of the rotating rod 704 to rotate. Through the rotation of the fan blade 705, inhale the high-temperature gas generated during the refining process of the alkyl lithium solution inside the filtration tank 1 into the inside of the U-shaped tube 701 and transport it. During the process of the U-shaped tube 701 guiding and transporting the high-temperature gas generated during the preparation of the alkyl lithium solution, increase the contact with the external air, so as to facilitate the dissipation of the generated heat and keep the temperature inside the filtration tank 1 relatively low during the preparation of the alkyl lithium solution.

[0036] Please refer to Figure 3 and Figure 9, the discharge assembly 8 includes a strip plate 801 disposed inside the filtration tank 1. A plurality of extrusion assemblies are provided at the lower end of the strip plate 801. The extrusion assemblies are arranged vertically staggered in the horizontal direction. The extrusion assembly includes a slide bar 802 fixed to the strip plate 801. A sleeve 803 is slidably connected to the slide bar 802. The other end of the sleeve 803 is fixed with a pressing plate 804. A discharge pipe 805 for discharging materials is installed at the lower end of the filtration tank 1. A lifting assembly 9 for lifting the strip plate 801 and a guiding assembly 10 for guiding during the lifting process are provided on the filtration tank 1. Through the lifting assembly 9 and the guiding assembly 10, the strip plate 801 is driven to move towards the sponge plate 602 and the pressing plates 804 on each extrusion assembly are abutted against the sponge plate 602. Through the extrusion action between each pressing plate 804 and the sponge plate 602, the alkyl lithium solution generated after the reaction preparation is extruded from the sponge plate 602 and filtered out from the filtration tank 1 through the discharge pipe 805, completing the filtration operation after the preparation of the alkyl lithium solution.

[0037] Please refer to Figure 3 and Figure 9 , the lifting assembly 9 includes a threaded rod 901 rotatably connected inside the filtration tank 1. A threaded tube 902 is threadedly engaged with the threaded rod 901. The other end of the threaded tube 902 is fixed to the upper end of the strip plate 801. A second motor 903 for driving the threaded rod 901 is installed at the upper end of the filtration tank 1. The guiding assembly 10 includes a sleeve 1002 fixed to the upper end of the strip plate 801. A guiding rod 1001 is slidably connected to the sleeve 1002. One end of the guiding rod 1001 is fixed to the inner wall of the filtration tank 1. When the second motor 903 is started, the threaded rod 901 is driven to rotate by the second motor 903. During the rotation of the threaded rod 901, through the meshing transmission between the threaded rod 901 and the threaded tube 902 and the guiding action between the guiding rod 1001 and the sleeve 1002, the strip plate 801 is driven to lift.

[0038] Please refer to Figure 6, the recycling component 11 includes a first operating shaft 1101 rotatably connected inside the filtration tank 1. The filter plate 601 is fixed on the first operating shaft 1101. A third motor 1102 for driving the first operating shaft 1101 is installed outside the filtration tank 1. A feed inlet 1103 is connected in communication between the filtration tank 1 and the collection tank 2. A blocking component 12 for blocking the feed inlet 1103 is arranged inside the filtration tank 1. A vibration component 13 for vibrating during the recycling process is arranged at the lower end of the filter plate 601. Start the third motor 1102, drive the first operating shaft 1101 to rotate through the third motor 1102. During the rotation of the first operating shaft 1101, drive the filter plate 601 to rotate around the first operating shaft 1101. Through the rotation of the filter plate 601, the filter plate 601 and the sponge plate 602 are inclined. At this time, the remaining lithium metal after the preparation reaction on the sponge plate 602 is transported into the collection tank 2 through the feed inlet 1103, and the lithium metal after the preparation reaction of the alkyl lithium solution is recycled.

[0039] Please refer to Figures 1 - 6 , the blocking component 12 includes a second operating shaft 1201 rotatably connected inside the filtration tank 1. A blocking plate 1202 for blocking the feed inlet 1103 is fixed on the second operating shaft 1201. A fourth motor 1203 for driving the second operating shaft 1201 is installed outside the filtration tank 1. Through the blocking plate 1202, it is convenient to block the feed inlet 1103 and prevent the prepared alkyl lithium solution from flowing out.

[0040] Please refer to Figure 5 , Figure 6 Figure 10 and Figure 11, the vibration assembly 13 includes a mounting plate 1305 disposed below the filter plate 601. Two support plates 1301 are fixed to the lower end of the filter plate 601. A T-shaped rod 1302 is slidably connected to the two support plates 1301. One end of the two T-shaped rods 1302 is fixed with a connecting plate 1303. Both ends of the two connecting plates 1303 are respectively fixed to both sides of the mounting plate 1305. A first spring 1304 is sleeved on the side walls of the two T-shaped rods 1302. A plurality of vibrating members 14 for vibrating the filter plate 601 are disposed at the upper end of the mounting plate 1305. Each of the vibrating members 14 is arranged horizontally. A fixing pin 1306 is fixed to one end of the mounting plate 1305. An intermittent transmission assembly 15 for intermittently driving the fixing pin 1306 is disposed on the filter box 1. The vibrating member 14 includes a rubber plate 1401 fixed to the upper end of the mounting plate 1305. A vibrating plate 1402 is mounted on the rubber plate 1401. A square groove 1403 is formed at the lower end of the filter plate 601. One end of the vibrating plate 1402 is located inside the square groove 1403. An arc surface is formed at the end of the vibrating plate 1402 that abuts against the square groove 1403. During the reciprocating movement of the second transmission plate 1503, due to the squeezing action of the second transmission plate 1503 on the fixing pin 1306 and the resetting action of each first spring 1304 on the fixing pin 1306 after squeezing, the mounting plate 1305 reciprocates along with the movement of the second transmission plate 1503. During the reciprocating movement of the second mounting plate 1305, it drives each rubber plate 1401 and the vibrating plate 1402 to move synchronously. During the movement of the vibrating plate 1402, due to the squeezing action between the arc surface and the inner wall of the square groove 1403, the rubber plate 1401 is deformed by force to generate an elastic force. Under the elastic force of the rubber plate 1401, one end of the vibrating plate 1402 is pushed against the inner wall of the square groove 1403 and collides, causing intermittent vibration of the filter plate 601 and the sponge plate 602. Through the vibration of the filter plate 601 and the sponge plate 602, it is more convenient for the collection operation of metallic lithium after the reaction of the alkyl lithium solution.

[0041] Please refer to Figure 5 , Figure 6 Figure 10 and Figure 11, the intermittent transmission assembly 15 includes a plurality of transmission rods 1501 slidably connected to the filter box 1. At both ends of the transmission rods 1501 located inside and outside the filter box 1, a second transmission plate 1503 and a first transmission plate 1502 are respectively fixed. One end of the fixing pin 1306 abuts against the second transmission plate 1503. A second spring 1504 is sleeved on the side wall of each transmission rod 1501. One end of the rotating shaft 702 is provided with a cam 1505 for squeezing and pushing the first transmission plate 1502. During the recovery process, the rotation of the rotating shaft 702 drives the cam 1505 to rotate synchronously. During the rotation of the cam 1505, through the intermittent squeezing action between the cam 1505 and the first transmission plate 1502 and the resetting action of each second spring 1504 on the first transmission plate 1502 after being stressed, the first transmission plate 1502 and the second transmission plate 1503 move reciprocally towards or away from the filter box 1 as the cam 1505 rotates.

[0042] Working principle: During the refining process of the alkyl lithium solution, the chloroalkane used for the reaction is dropped and conveyed through the feed pipe 3 inside the filter box 1 and lands on the sponge plate 602. During the dropping and conveying process of the chloroalkane, the fan 5 is started. Under the pumping action of the fan 5, the metallic lithium in the collection box 2 is pumped and conveyed through the conveying pipe 4 into the filter box 1 and lands on the sponge plate 602. It should be noted here that the particle size of the metallic lithium is a heat sink with a size of 20um - 40um. Its particle size is small and it cannot pass through the sponge plate 602. The chloroalkane solution dropped and conveyed onto the sponge plate 602 reacts with the metallic lithium to generate the alkyl lithium solution to be prepared. During the refining process of the alkyl lithium solution, the first motor 703 on the U-shaped pipe 701 is started. The rotating shaft 702 is driven to rotate by the first motor 703. During the rotation of the rotating shaft 702, the first bevel gear 706 is driven to rotate. During the rotation of the first bevel gear 706, the rotating rod 704 and the fan blade 705 at one end of the rotating rod 704 are driven to rotate through the meshing transmission between the first bevel gear 706 and the second bevel gear 707. Through the rotation of the fan blade 705, the high-temperature gas generated during the refining process of the alkyl lithium solution inside the filter box 1 is inhaled into the U-shaped pipe 701 and conveyed. During the process of the U-shaped pipe 701 diverting and conveying the high-temperature gas generated during the preparation of the alkyl lithium solution, the contact with the external air is increased, which is convenient for dissipating the generated heat, so that the temperature inside the filter box 1 is kept relatively low during the preparation of the alkyl lithium solution, avoiding the chloroalkane generated during the preparation of the alkyl lithium solution inside the filter box 1 reacting with the alkyl lithium to form by-products, ensuring the purity during the preparation process of the alkyl lithium solution, and facilitating the refining process of the alkyl lithium solution;

[0043] After generating an alkyllithium solution through the reaction between a chloroalkane solution and metallic lithium, start the second motor 903. Drive the threaded rod 901 to rotate through the second motor 903. During the rotation of the threaded rod 901, drive the strip-shaped plate 801 to move towards the sponge plate 602 through the meshing transmission between the threaded rod 901 and the threaded tube 902 and the guiding effect between the guide rod 1001 and the sleeve 1002, and make the pressing plates 804 on each extrusion assembly abut against the sponge plate 602. Through the extrusion between each pressing plate 804 and the sponge plate 602, the alkyllithium solution generated after the reaction preparation is extruded from the sponge plate 602 and filtered out from the filter box 1 through the discharge pipe 805, completing the filtering operation after the preparation of the alkyllithium solution;

[0044] During the filtration of the prepared alkyl lithium solution, the remaining metallic lithium after the reaction remains above the sponge plate 602. At this time, the metallic lithium is recovered. During the recovery process, the fourth motor 1203 is started, and the second operating shaft 1201 is driven to rotate by the fourth motor 1203. During the rotation of the second operating shaft 1201, the blocking plate 1202 is driven to no longer block the feed port 1103. After the driving of the blocking plate 1202 is completed, the third motor 1102 is started, and the first operating shaft 1101 is driven to rotate by the third motor 1102. During the rotation of the first operating shaft 1101, the filter plate 601 is driven to rotate around the first operating shaft 1101. By the rotation of the filter plate 601, the filter plate 601 and the sponge plate 602 are inclined. At this time, the remaining metallic lithium after the preparation reaction on the sponge plate 602 is transported into the interior of the collection box 2 through the feed port 1103, and the metallic lithium after the alkyl lithium solution preparation reaction is recovered. And during the recovery process, through the rotation of the rotating shaft 702, the cam 1505 is driven to rotate synchronously. During the rotation of the cam 1505, through the intermittent extrusion between the cam 1505 and the first transmission plate 1502 and the resetting effect of each second spring 1504 on the first transmission plate 1502 after being stressed, the first transmission plate 1502 and the second transmission plate 1503 move towards or away from the filter box 1 reciprocally as the cam 1505 rotates. During the reciprocating movement of the second transmission plate 1503, through the extrusion of the second transmission plate 1503 on the fixed pin 1306 and the resetting effect of each first spring 1304 on the fixed pin 1306 after extrusion, the mounting plate 1305 moves reciprocally as the second transmission plate 1503 moves. During the reciprocating movement of the second mounting plate 1305, each rubber plate 1401 and the vibrating plate 1402 are driven to move synchronously. During the movement of the vibrating plate 1402, under the extrusion between the arc surface and the inner wall of the square groove 1403, the rubber plate 1401 is stressed and deformed to generate elastic force. Under the elastic force of the rubber plate 1401, one end of the vibrating plate 1402 is pushed to abut against and strike the inner wall of the square groove 1403, causing intermittent vibration on the filter plate 601 and the sponge plate 602. Through the vibration of the filter plate 601 and the sponge plate 602, the collection operation of the metallic lithium after the alkyl lithium solution reaction is more convenient.

Claims

1. An alkyl lithium solution refining and filtering device, comprising a filtering box (1), wherein a plurality of feed pipes (3) are installed on the filtering box (1), and it is characterized in that: A collecting box (2) is provided on one side of the filter box (1); a delivery pipe (4) for delivering metal lithium raw materials is connected between the collecting box (2) and the filter box (1); one end of the delivery pipe (4) is located at the upper end of the filter box (1); a fan (5) is installed on the delivery pipe (4); a filtering component (6) for filtering during the preparation of the alkyl lithium solution and a reflux component (7) for reducing the generation of side reactions during the preparation are provided inside the filter box (1); a discharging component (8) for discharging during the refining of the alkyl lithium solution is provided on the filter box (1); and a recovery component (11) for recovering the lithium raw materials after the reaction is provided between the collecting box (2) and the filter box (1); The filter assembly (6) comprises a filter plate (601) installed inside the filter box (1), and a sponge plate (602) is provided at the upper end of the filter plate (601); The reflux assembly (7) comprises a U-shaped tube (701) mounted on the outside of the filter box (1), the two ends of the U-shaped tube (701) being respectively connected to the two sides of the filter box (1), the U-shaped tube (701) being rotatably connected to a rotating shaft (702), the U-shaped tube (701) being mounted with a first motor (703) for driving the rotating shaft (702), the interior of the U-shaped tube (701) being rotatably connected to a rotating rod (704), one end of the rotating rod (704) being fixed with a fan blade (705), the rotating shaft (702) being fixed with a first bevel tooth (706), one end of the rotating rod (704) being fixed with a second bevel tooth (707), the first bevel tooth (706) and the second bevel tooth (707) being arranged to mesh with each other; The discharge assembly (8) comprises a strip plate (801) arranged inside the filter box (1), a plurality of extrusion assemblies are arranged at the lower end of the strip plate (801), and each of the extrusion assemblies is arranged in an up-and-down staggered manner in the horizontal direction, the extrusion assembly comprises a slide bar (802) fixed on the strip plate (801), a sleeve (803) is slidably connected to the slide bar (802), and a pressure plate (804) is fixed to the other end of the sleeve (803), a discharge pipe (805) for discharging is installed at the lower end of the filter box (1), and a lifting assembly (9) for lifting and lowering the strip plate (801) and a guide assembly (10) for guiding during the lifting process are arranged on the filter box (1).

2. The alkyl lithium solution refining and filtering equipment according to claim 1, characterized in that: The lifting assembly (9) comprises a threaded rod (901) rotatably connected to the inside of the filter box (1); a threaded tube (902) is threadedly engaged with the threaded rod (901); the other end of the threaded tube (902) is fixed to the upper end of the strip plate (801); and a second motor (903) for driving the threaded rod (901) is installed at the upper end of the filter box (1).

3. The alkyl lithium solution refining and filtering equipment according to claim 2, characterized in that: The guide assembly (10) comprises a sleeve (1002) fixed to the upper end of the strip plate (801), a guide rod (1001) being slidably connected to the sleeve (1002), and one end of the guide rod (1001) is fixed to the inner wall of the filter box (1).

4. An alkyl lithium solution refining and filtering device according to claim 3, characterized in that: The recycling component (11) includes a first operating shaft (1101) rotatably connected inside the filtering box (1). The filter plate (601) is fixed on the first operating shaft (1101). A third motor (1102) for driving the first operating shaft (1101) is installed outside the filtering box (1). A feed inlet (1103) is connected in communication between the filtering box (1) and the collection box (2). A blocking component (12) for blocking the feed inlet (1103) is arranged inside the filtering box (1). A vibration component (13) for vibrating during the recycling process is arranged at the lower end of the filter plate (601).

5. The alkyl lithium solution refining and filtering equipment according to claim 4, characterized in that: The blocking component (12) includes a second operating shaft (1201) rotatably connected inside the filtering box (1). A blocking plate (1202) for blocking the feed inlet (1103) is fixed on the second operating shaft (1201). A fourth motor (1203) for driving the second operating shaft (1201) is installed outside the filtering box (1).

6. The alkyl lithium solution refining and filtering device according to claim 5, wherein: The vibration component (13) includes a mounting plate (1305) arranged below the filter plate (601). Two support plates (1301) are fixed at the lower end of the filter plate (601). A T-shaped rod (1302) is slidably connected to the two support plates (1301). One end of the two T-shaped rods (1302) is fixed with a connecting plate (1303). Both ends of the two connecting plates (1303) are fixed to both sides of the mounting plate (1305). A first spring (1304) is sleeved on the side walls of the two T-shaped rods (1302). A plurality of vibrating members (14) for vibrating the filter plate (601) are arranged at the upper end of the mounting plate (1305). Each of the vibrating members (14) is arranged horizontally. One end of the mounting plate (1305) is fixed with a fixing pin (1306). An intermittent transmission component (15) for intermittently driving the fixing pin (1306) is arranged on the filtering box (1).

7. An alkyl lithium solution refining and filtering device according to claim 6, characterized in that: The vibrating member (14) includes a rubber plate (1401) fixed to the upper end of the mounting plate (1305). A vibrating plate (1402) is installed on the rubber plate (1401). A square groove (1403) is formed at the lower end of the filter plate (601). One end of the vibrating plate (1402) is located inside the square groove (1403). An arc surface is formed at the end of the vibrating plate (1402) that abuts against the square groove (1403).

8. An alkyl lithium solution refining and filtering device according to claim 7, characterized in that: The intermittent transmission component (15) includes a plurality of transmission rods (1501) slidably connected to the filtering box (1). Second transmission plates (1503) and first transmission plates (1502) are respectively fixed at both ends of the transmission rods (1501) located inside and outside the filtering box (1). One end of the fixing pin (1306) is arranged to abut against the second transmission plate (1503). A second spring (1504) is sleeved on the side walls of the transmission rods (1501). A cam (1505) for squeezing and pushing the first transmission plate (1502) is installed at one end of the rotating shaft (702).

Images