CN114659340B - Manufacturing device and manufacturing method of super battery grade lithium hydroxide - Google Patents
Manufacturing device and manufacturing method of super battery grade lithium hydroxide Download PDFInfo
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- CN114659340B CN114659340B CN202210266874.6A CN202210266874A CN114659340B CN 114659340 B CN114659340 B CN 114659340B CN 202210266874 A CN202210266874 A CN 202210266874A CN 114659340 B CN114659340 B CN 114659340B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
- F26B3/08—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed
- F26B3/082—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed arrangements of devices for distributing fluidising gas, e.g. grids, nozzles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/02—Applications of driving mechanisms, not covered by another subclass
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a manufacturing device and a manufacturing method of super-grade battery-grade lithium hydroxide in the technical field of lithium hydroxide production, and the manufacturing device comprises a support frame and a belt conveying device, wherein the support frame is U-shaped, the belt conveying device is arranged on the inner side of the support frame, a hot air box is arranged above the belt conveying device, and the hot air box is fixedly connected with the inner wall of the support frame; the hot air box is in a hollow rectangular cylinder shape with an opening at the bottom, and the bottom surface of the hot air box is attached to the top surface of the belt conveying device; the left side wall and the right side wall of the hot air box are both provided with a feeding hole, the right side wall of the hot air box is provided with a first discharging hole, and the first discharging hole is positioned above the first discharging hole on the right side; a material distribution box is arranged on the right side of the first discharge port and fixedly connected with the hot air box; the invention can make the lithium hydroxide dried more thoroughly.
Description
Technical Field
The invention relates to the technical field of lithium hydroxide production, in particular to a device and a method for manufacturing super-grade battery-grade lithium hydroxide.
Background
Lithium hydroxide with molecular weight of 24 and solubility of 20% of 12.8% can absorb carbon dioxide and water in air, is slightly soluble in ethanol, and is insoluble in diethyl ether. Lithium hydroxide monohydrate is a highly corrosive white crystal powder, the traditional application fields mainly comprise lithium-based lubricating grease, glass ceramic and petrochemical industry, but with the global temperature rise of high nickel demand, the battery material becomes the core driving force of the global lithium hydroxide market. The characteristics of low melting point and the like enable the positive electrode material sintered by lithium hydroxide to have better electrochemical performance, and are necessary choices of NCM materials and NCA materials requiring lower-temperature sintering.
Because lithium hydroxide can absorb carbon dioxide and moisture in the air, the lithium hydroxide after production can appear moist state, the lithium hydroxide needs to be dried before use and storage, in the prior art, when the lithium hydroxide is dried, generally, piled lithium hydroxide is placed on a conveyor belt, then the lithium hydroxide is dried in the process of moving the conveyor belt, the drying speed of the surface layer of the piled lithium hydroxide is high, but the lithium hydroxide in the middle and at the bottom layer is slow to dry, and the risk of incomplete drying can cause the follow-up lithium hydroxide to need to be dried for many times, and the efficiency of drying the lithium hydroxide can be greatly reduced.
Based on the above, the invention designs a manufacturing device and a manufacturing method of super-grade battery-grade lithium hydroxide to solve the above problems.
Disclosure of Invention
The present invention is directed to an apparatus and a method for manufacturing super-grade battery-grade lithium hydroxide, which solve the problems of the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a manufacturing device of super-grade battery-grade lithium hydroxide comprises a support frame and a belt conveying device, wherein the support frame is U-shaped, the belt conveying device is arranged on the inner side of the support frame, a hot air box is arranged above the belt conveying device, and the hot air box is fixedly connected with the inner wall of the support frame; the hot air box is in a hollow rectangular cylinder shape with an opening at the bottom, and the bottom surface of the hot air box is attached to the top surface of the belt conveying device; the left side wall and the right side wall of the hot air box are both provided with feed inlets, the right side wall of the hot air box is provided with a first discharge hole, and the first discharge hole is positioned above the first discharge hole on the right side; a material distribution box is arranged on the right side of the first discharge port and fixedly connected with the hot air box, a partition plate is fixedly connected to the inner wall of the material distribution box, and the material distribution box is divided into a circulation cavity and a discharge cavity by the partition plate; the circulating cavity is positioned on the left side of the discharging cavity; a second discharge hole is formed in the right side wall of the discharge cavity; a circulating drying component is also arranged in the hot air box; and the circulating drying assembly is used for circularly drying the lithium hydroxide in the hot air box and conveying the dried lithium hydroxide into the discharge cavity to fall onto the belt conveying device again.
As a further aspect of the present invention, the circulation drying assembly includes a suction fan and a blowing fan; the air suction fan is positioned above the first discharge hole and is rotationally connected with the inner wall of the top of the hot air box, a first motor is connected to a rotating shaft of the air suction fan in a transmission manner, and the first motor is fixedly connected with the hot air box; the blowing fan is arranged on the right left side of the first discharge hole and is rotationally connected with the hot air box, a second motor is connected to the rotating shaft of the blowing fan in a transmission mode, and the second motor is fixedly connected with the hot air box.
As a further scheme of the invention, a material pressing component is arranged in the discharging cavity; the material pressing assembly comprises a pressing plate, a first baffle and a driving part; the pressing plate is rotatably connected with a first sliding rod, the first sliding rod is in sliding connection with the material distribution box in the vertical direction, a push rod is arranged above the pressing plate and used for driving the pressing plate to incline towards the lower right side, the push rod is in sliding connection with the material distribution box in the vertical direction, a first spring is fixedly connected to the push rod, and the bottom end of the first spring is fixedly connected with the top of the material distribution box; the first baffle is connected with the material distribution box in a sliding mode in the vertical direction and used for shielding the second material outlet; the driving part is used for driving the pressing plate to move downwards to compress the lithium hydroxide in the discharging cavity, and driving the first baffle to move upwards to open the second discharging hole in the process that the pressing plate moves upwards after the lithium hydroxide is compressed.
As a further aspect of the present invention, the driving part includes a cylinder and a traction rope; the telescopic end of the air cylinder is fixedly connected with the top of the first sliding rod, and the fixed end of the air cylinder is fixedly connected with the support frame; the one end and the first baffle top fixed connection of haulage rope, the other end fixedly connected with roll-up roller of haulage rope, the roll-up roller rotates with the support frame to be connected, the one-way bearing of fixedly connected with in the axis of rotation of roll-up roller, fixedly connected with gear on the outer circumferential wall of one-way bearing, the right side of gear is provided with can rather than the rack bar of meshing, rack bar and first slide bar fixed connection.
As a further scheme of the invention, the height of the feed inlet on the left side is greater than that of the feed inlet on the right side, a cover plate is arranged on the outer side of the feed inlet on the left side, the cover plate is in sliding connection with the outer wall on the left side of the hot air box in the vertical direction, a telescopic baffle is rotatably connected to the cover plate, the left end of the telescopic baffle is rotatably connected with the inner wall of the support frame, and a connecting rod is rotatably connected to the cover plate; the rotating shaft of the blowing fan is fixedly connected with a rotating disc, the non-circle center position on the outer wall of the rotating disc is fixedly connected with a rotating rod, and the rotating rod is rotatably connected with a connecting rod.
As a further scheme of the invention, a push plate is arranged below the first slide bar, a driving inclined plane is arranged at the top of the push plate, the rear side wall of the push plate is attached to the front wall of the discharging cavity, the push plate is connected with the support frame in a sliding manner in the front-rear direction, and the push plate is fixedly connected with a gas spring for resetting the push plate.
As a further scheme of the invention, the bottom of the circulating cavity is provided with a material guide table, the material guide table is fixedly connected with the material distribution box, and the material guide table is positioned on the right side of the right side feeding hole.
A method for producing extra-grade battery grade lithium hydroxide, comprising the steps of:
the method comprises the following steps: placing lithium hydroxide needing to be dried on a belt conveying device, wherein the belt conveying device can convey the lithium hydroxide to the right side;
step two: after the lithium hydroxide moves to the inner side of the telescopic baffle, starting the circulating drying assembly, enabling the circulating drying assembly to be positioned in the hot air box to generate negative pressure, and enabling the lithium hydroxide on the belt conveying device to float in the hot air box;
step three: then the circulating drying assembly blows out lithium hydroxide from the first discharge hole, the lithium hydroxide which is thoroughly dried falls into the discharge cavity, and the lithium hydroxide which is not completely dried falls into the circulating cavity;
step four: and the lithium hydroxide which is completely dried can be conveyed to a collection position by a belt conveying device, the lithium hydroxide which is not completely dried can return to the hot air box from the circulating cavity to be dried again, and the lithium hydroxide is circulated and reciprocated until the lithium hydroxide is completely dried and then falls into the discharging cavity.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the arrangement of the hot air box 3, the material distribution box 6, the circulating cavity 8, the discharging cavity 9 and the circulating drying component, lithium hydroxide conveyed by the belt conveying device 2 can be suspended in the hot air box 3 under the action of air flow and air pressure when entering the hot air box 3, the outer wall of the suspended lithium hydroxide is completely exposed in the air, and the lithium hydroxide can be dried more quickly; the lithium hydroxide which is not completely dried can fall into the circulating cavity 8 through the different weights of the lithium hydroxide before and after drying, then the lithium hydroxide can return to the hot air box 3 from the feeding hole 4 on the right side again, and then the lithium hydroxide is driven by the air suction fan 11 to suspend in the hot air box 3 for drying and circulating until the lithium hydroxide is completely dried; the lithium hydroxide completely dried flies into the discharging cavity 9 and then falls onto the belt conveying device 2; the lithium hydroxide can be collected only after being dried thoroughly, the condition that the lithium hydroxide needs to be dried for many times due to incomplete drying of the lithium hydroxide can be avoided, and the drying efficiency of the lithium hydroxide can be greatly improved.
2. According to the invention, through the arrangement of the pressing plate 15 and the driving part, the pressing plate 15 can be driven by the driving part to compress lithium hydroxide completely dried in the discharging cavity 9, so that the lithium hydroxide can not easily fall off in the conveying process after the lithium hydroxide is completely dried.
Drawings
FIG. 1 is a flow chart of the method of the present invention;
FIG. 2 is a schematic diagram of the overall structure of the present invention;
FIG. 3 is a schematic cross-sectional view of the overall structure of the present invention;
FIG. 4 is a schematic sectional view of the hot air box and its upper part;
FIG. 5 is a schematic sectional view showing the internal structure of the hot air box and the material distribution box according to the present invention;
FIG. 6 is a schematic sectional view showing the positional relationship among the push plate, the first slide bar, the supporting frame and the belt feeding device according to the present invention;
FIG. 7 is a schematic sectional view of the position relationship between the push plate and the first slide bar according to the present invention;
FIG. 8 is a schematic view of the construction of the take-up roll, the one-way bearing and the gear of the present invention;
fig. 9 is a schematic view of the structure of the connecting rod, the rotary disc and the rotary rod of the invention.
In the drawings, the components represented by the respective reference numerals are listed below:
the device comprises a support frame 1, a belt conveying device 2, a hot air box 3, a feed inlet 4, a first discharge outlet 5, a material distribution box 6, a partition plate 7, a circulation cavity 8, a discharge cavity 9, a second discharge outlet 10, an induced draft fan 11, a blowing fan 12, a first motor 13, a second motor 14, a pressure plate 15, a first baffle 16, a first slide bar 17, a push rod 18, a first spring 19, an air cylinder 20, a traction rope 21, a take-up roller 22, a one-way bearing 23, a take-up gear 24, a rack bar 25, a cover plate 26, a telescopic baffle 27, a connecting rod 28, a rotary disc 29, a rotary rod 30, a push plate 31, a driving inclined plane 32, an air spring 33 and a material guide table 34.
Detailed Description
Referring to fig. 1-9, the present invention provides a technical solution: a manufacturing device of super-grade battery-grade lithium hydroxide comprises a support frame 1 and a belt conveying device 2, wherein the support frame 1 is U-shaped, the belt conveying device 2 is arranged on the inner side of the support frame 1, a hot air box 3 is arranged above the belt conveying device 2, and the hot air box 3 is fixedly connected with the inner wall of the support frame 1; the hot air box 3 is in a hollow rectangular cylinder shape with an opening at the bottom, and the bottom surface of the hot air box 3 is attached to the top surface of the belt conveying device 2; the left side wall and the right side wall of the hot air box 3 are both provided with a feeding hole 4, the right side wall of the hot air box 3 is provided with a first discharging hole 5, and the first discharging hole 5 is positioned above the first discharging hole 5 on the right side; a material distribution box 6 is arranged on the right side of the first discharge hole 5, the material distribution box 6 is fixedly connected with the hot air box 3, a partition plate 7 is fixedly connected to the inner wall of the material distribution box 6, and the material distribution box 6 is divided into a circulating cavity 8 and a discharge cavity 9 by the partition plate 7; the circulating cavity 8 is positioned on the left side of the discharging cavity 9; a second discharge hole 10 is formed in the right side wall of the discharge cavity 9; a circulating drying component is also arranged in the hot air box 3; the circulating drying assembly is used for circularly drying the lithium hydroxide in the hot air box 3, and conveying the dried lithium hydroxide into the discharging cavity 9 and dropping the lithium hydroxide onto the belt conveying device 2 again.
The circulation drying assembly comprises a suction fan 11 and a blowing fan 12; the suction fan 11 is positioned above the first discharge hole 5 and is rotationally connected with the inner wall of the top of the hot air box 3, a first motor 13 is rotationally connected to a rotating shaft of the suction fan 11, and the first motor 13 is fixedly connected with the hot air box 3; the blowing fan 12 is arranged right on the left side of the first discharge port 5, the blowing fan 12 is rotatably connected with the hot air box 3, a second motor 14 is connected to a rotating shaft of the blowing fan 12 in a transmission manner, and the second motor 14 is fixedly connected with the hot air box 3.
When the scheme is put into practical use, lithium hydroxide is accumulated on the left side of the top of the belt conveying device 2, the belt conveying device 2 drives the lithium hydroxide to move rightwards, when the lithium hydroxide moves rightwards to be close to the hot air box 3, the first motor 13 and the second motor 14 are started, the first motor 13 drives the air suction fan 11 to rotate, the air suction fan 11 rotates to drive air in the hot air box 3 to flow, air pressure in the hot air box 3 can be reduced, and then the lithium hydroxide on the belt conveying device 2 is sucked into the hot air box 3 from the feed inlet 4 on the left side under the action of the air pressure and is suspended on the inner side of the hot air box 3; in the present invention, a heating device capable of drying the suspended lithium hydroxide is required to be disposed on the inner wall of the hot air box 3; the outer wall of the suspended lithium hydroxide is completely exposed in the air, so that the lithium hydroxide can be dried more quickly; the second motor 14 will drive the blowing fan 12 to work, and the blowing fan 12 will blow the suspended lithium hydroxide to move to the right, so that the lithium hydroxide flies out from the first discharge hole 5; when the lithium hydroxide flies out from the first discharge port 5; the lithium hydroxide completely dried flies into the discharging cavity 9, and the lithium hydroxide incompletely dried falls into the circulating cavity 8 (because the weight of the lithium hydroxide is increased after the lithium hydroxide absorbs moisture, and the weight of the lithium hydroxide is gradually reduced along with the increase of the drying degree, under the condition that the thrust of the blowing fan 12 is constant, the lithium hydroxide which is heavier and is not completely dried moves to the right in a smaller distance and falls into the circulating cavity 8, and the lithium hydroxide which is completely dried moves to the right in a longer distance and falls into the discharging cavity 9), the lithium hydroxide falling into the circulating cavity 8 returns into the hot air box 3 again from the feeding hole 4 on the right side, is driven by the suction fan 11 to suspend in the hot air box 3 for drying, and circulates until the lithium hydroxide reaches a completely dried state, and then falls into the discharging cavity 9 from the first discharging hole 5; the lithium hydroxide falling into the discharging cavity 9 falls onto the belt conveying device 2 again, and then is conveyed to a collecting position by the belt conveying device 2; according to the invention, through the arrangement of the hot air box 3, the material distribution box 6, the circulating cavity 8, the discharging cavity 9 and the circulating drying component, lithium hydroxide conveyed by the belt conveying device 2 can be suspended in the hot air box 3 under the action of air flow and air pressure when entering the hot air box 3, the outer wall of the suspended lithium hydroxide is completely exposed in the air, and the lithium hydroxide can be dried more quickly; the lithium hydroxide which is not completely dried can fall into the circulating cavity 8 through the different weights of the lithium hydroxide before and after drying, then the lithium hydroxide can return into the hot air box 3 from the feeding hole 4 on the right side again, and then the lithium hydroxide is driven by the air suction fan 11 to suspend in the hot air box 3 for drying and circulating until the lithium hydroxide reaches a completely dried state; the lithium hydroxide completely dried flies into the discharging cavity 9 and then falls onto the belt conveying device 2; the lithium hydroxide can be collected only after being dried thoroughly, the condition that the lithium hydroxide needs to be dried for multiple times due to incomplete drying of the lithium hydroxide can be avoided, and the drying efficiency of the lithium hydroxide can be greatly improved.
As a further scheme of the invention, a material pressing component is arranged in the material outlet cavity 9; the material pressing assembly comprises a pressing plate 15, a first baffle 16 and a driving part; the pressing plate 15 is rotatably connected with a first sliding rod 17, the first sliding rod 17 is connected with the material distribution box 6 in a sliding mode in the vertical direction, a push rod 18 is arranged above the pressing plate 15, the push rod 18 is used for driving the pressing plate 15 to incline towards the lower right, the push rod 18 is connected with the material distribution box 6 in the vertical direction in a sliding mode, a first spring 19 is fixedly connected onto the push rod 18, and the bottom end of the first spring 19 is fixedly connected with the top of the material distribution box 6; the first baffle 16 is connected with the material distribution box 6 in a sliding manner in the vertical direction and is used for shielding the second material outlet 10; the driving part is used for driving the pressing plate 15 to move downwards to compress the lithium hydroxide in the discharging cavity 9, and driving the first baffle 16 to move upwards to open the second discharging hole 10 in the process that the pressing plate 15 moves upwards after the lithium hydroxide is compressed.
The driving part comprises a cylinder 20 and a traction rope 21; the telescopic end of the air cylinder 20 is fixedly connected with the top of the first sliding rod 17, and the fixed end of the air cylinder 20 is fixedly connected with the support frame 1; the one end and the 16 top fixed connection of first baffle of haulage rope 21, the other end fixedly connected with roll-up roller 22 of haulage rope 21, roll-up roller 22 rotates with support frame 1 to be connected, the one-way bearing 23 of fixedly connected with in the axis of rotation of roll-up roller 22, fixedly connected with gear 24 on the outer circumferential wall of one-way bearing 23, gear 24's right side is provided with can rather than the rack bar 25 of meshing, rack bar 25 and first slide bar 17 fixed connection.
The above solution solves the problem in view of the light weight of the dried lithium hydroxide, and the risk of lithium hydroxide falling off if the lithium hydroxide is scattered on the belt conveyor 2 during the conveying process due to air flow change; in the scheme, lithium hydroxide can be blocked by the first baffle 16 after falling into the discharging cavity 9, the lithium hydroxide can not be conveyed away by the belt conveying device 2 temporarily, after the air suction fan 11 and the air blowing fan 12 work for a period of time, the air cylinder 20 is started, the air cylinder 20 drives the first sliding rod 17 and the pressing plate 15 to move downwards, the pressing plate 15 can move downwards in the discharging cavity 9, the pressing plate 15 can be completely attached to the front side wall, the rear side wall, the left side wall and the right side wall of the discharging cavity 9, the pressing plate 15 can compress lithium hydroxide completely dried in the discharging cavity 9, and the lithium hydroxide can be stacked together; after the lithium hydroxide is compressed by the pressing plate, the air cylinder 20 drives the first sliding rod 17 and the pressing plate 15 to move upwards, the first sliding rod 17 drives the rack rod 25 to move upwards together, the rack rod 25 drives the gear 24 to rotate, at the moment, the gear 24 drives the furling roller 22 to rotate through the one-way bearing 23, the furling roller 22 winds the traction rope 21, the traction rope 21 drives the first baffle 16 to move upwards, after the first baffle 16 moves upwards to the upper part of the accumulated lithium hydroxide, the accumulated lithium hydroxide is driven by the belt conveying device 2 to move rightwards, when the rack rod 25 moves upwards to be disengaged from the gear 24, the first baffle 16 moves downwards under the action of self rotation to return to the initial position, and the second discharge hole 10 is closed again; when the pressing plate 15 moves upwards to the bottom surface of the push rod 18, because the bottom surface of the push rod 18 is an inclined surface, the contact between the push rod 18 and the pressing plate 15 is a line contact, and the contact line is positioned at the right side of the rotating shaft of the pressing plate 15, the push rod 18 can drive the pressing plate 15 to incline towards the right lower side until the pressing plate 15 is inclined to be completely attached to the inclined surface of the push rod 18, and lithium hydroxide falling onto the pressing plate in the horizontal position can fall into the discharging cavity 9 along the inclined pressing plate 15; when the left end of the pressing plate 15 is firstly contacted with the inner wall of the top of the material distribution box 6, lithium hydroxide can fall into the material outlet cavity 9 along the bottom surface of the pressing plate 15, and then the pressing plate 15 can be slowly turned back to the horizontal position, the pressing plate 15 can drive the push rod 18 to move upwards and compress the first spring 19; in the present embodiment, a torsion spring (not shown in the drawings) is disposed between the pressing plate 15 and the first sliding rod 17 to keep the pressing plate 15 in a horizontal state; according to the invention, through the arrangement of the pressing plate 15 and the driving part, the pressing plate 15 can be driven by the driving part to compress lithium hydroxide completely dried in the discharging cavity 9, so that the lithium hydroxide can not easily fall off in the conveying process after the lithium hydroxide is completely dried.
As a further scheme of the present invention, the height of the left side feed inlet 4 is greater than that of the right side feed inlet 4, a cover plate 26 is arranged outside the left side feed inlet 4, the cover plate 26 is connected with the left side outer wall of the hot air box 3 in a sliding manner in the vertical direction, a telescopic baffle 27 is rotatably connected to the cover plate 26, the left end of the telescopic baffle 27 is rotatably connected with the inner wall of the support frame 1, and a connecting rod 28 is rotatably connected to the cover plate 26; a rotating disc 29 is fixedly connected to a rotating shaft of the blowing fan 12, a rotating rod 30 is fixedly connected to a non-circle center position on the outer wall of the rotating disc 29, and the rotating rod 30 is rotatably connected with the connecting rod 28.
When the scheme is put into practical use, it needs to be noted that in the scheme, a plurality of blowing fans 12 are arranged, and the plurality of blowing fans 12 are in transmission connection through chains; the second motor 14 can drive the plurality of blowing fans 12 to synchronously rotate in the same direction, the blowing fans 12 can drive the rotating disc 29 to rotate when rotating, the rotating disc 29 can drive the connecting rod 28 to synchronously move through the rotating rod 30, the connecting rod 28 can drive the cover plate 26 to circularly move in the vertical direction, and the cover plate 26 can drive the right end of the telescopic baffle to circularly move in the vertical direction; according to the invention, through the arrangement of the telescopic baffle 27, the lithium hydroxide on the belt conveying device 2 can be prevented from being influenced by the air flow generated by the air suction fan 11 too early, the lithium hydroxide can be ensured to be blown to move upwards by the air flow when moving to be close to the hot air box 3, and through the arrangement of the cover plate 26, the connecting rod 28, the rotary disc 29 and the rotary rod 30, the air blowing fan 12 can drive the right ends of the cover plate 26 and the telescopic baffle 27 to circularly move in the vertical direction in the rotating process, the size of the feed inlet 4 on the left side can be changed through the movement of the cover plate 26, when the feed inlet 4 is reduced, the amount of the lithium hydroxide entering the hot air box is reduced, the amount of the lithium hydroxide adsorbed in the hot air box 3 can be circularly changed, and the lithium hydroxide can be dried in the hot air box 3 more quickly.
As a further scheme of the present invention, a push plate 31 is disposed below the first slide bar 17, a driving inclined plane 32 is disposed at the top of the push plate 31, a rear side wall of the push plate 31 is attached to a front wall of the discharging cavity 9, the push plate 31 is slidably connected to the support frame 1 in the front-rear direction, and a gas spring 33 for resetting the push plate 31 is fixedly connected thereto.
When the scheme is put into practical use, when the first slide bar 17 moves to be in contact with the driving inclined surface 32, the first slide bar 17 can extrude the driving inclined surface 32 to enable the push plate 31 to move outwards, after the first slide bar 17 compresses the lithium hydroxide to move upwards, the push plate 31 can move inwards under the action of the gas spring 33, and the push plate 31 can push the lithium hydroxide in the sliding chute in which the first slide bar 17 moves downwards into the discharge cavity 9.
As a further scheme of the invention, a material guiding table 34 is arranged at the bottom of the circulating cavity 8, the material guiding table 34 is fixedly connected with the material distributing box 6, and the material guiding table 34 is positioned at the right side of the right side feeding hole 4; during operation, the lithium hydroxide in the circulation chamber 8 can better fall into the hot air box 3 through the arrangement of the material guiding platform 34.
A method for manufacturing super battery grade lithium hydroxide comprises the following steps:
the method comprises the following steps: placing lithium hydroxide needing to be dried on the belt conveying device 2, wherein the belt conveying device 2 can convey the lithium hydroxide to the right side;
step two: after the lithium hydroxide moves to the inner side of the telescopic baffle 27, starting the circulating drying assembly, wherein the circulating drying assembly can generate negative pressure in the hot air box 3, and the lithium hydroxide on the belt conveying device 2 can float in the hot air box 3;
step three: then the circulating drying assembly blows out the lithium hydroxide from the first discharge hole 5, the lithium hydroxide which is completely dried falls into the discharge cavity 9, and the lithium hydroxide which is not completely dried falls into the circulating cavity 8;
step four: the lithium hydroxide which is completely dried is conveyed to a collection position by the belt conveyor 2, the lithium hydroxide which is not completely dried returns to the hot air box 3 from the circulation cavity 8 to be dried again, and the circulation is repeated until the lithium hydroxide is completely dried and falls into the discharging cavity 9.
The working principle is as follows: accumulating lithium hydroxide on the left side of the top of the belt conveying device 2, enabling the belt conveying device 2 to drive the lithium hydroxide to move rightwards, starting a first motor 13 and a second motor 14 when the lithium hydroxide moves rightwards to be close to a hot air box 3, enabling the first motor 13 to drive an air suction fan 11 to rotate, enabling the air suction fan 11 to rotate to drive air in the hot air box 3 to flow, and enabling air pressure in the hot air box 3 to be reduced, and enabling the lithium hydroxide on the belt conveying device 2 to be sucked into the hot air box 3 from a feed inlet 4 on the left side under the action of the air pressure and to be suspended on the inner side of the hot air box 3; in the present invention, a heating device capable of drying the suspended lithium hydroxide is required to be disposed on the inner wall of the hot air box 3; the outer wall of the suspended lithium hydroxide is completely exposed in the air, so that the lithium hydroxide can be dried more quickly; the second motor 14 drives the blowing fan 12 to work, and the blowing fan 12 blows the suspended lithium hydroxide to move to the right side, so that the lithium hydroxide flies out of the first discharge hole 5; when the lithium hydroxide flies out from the first discharge port 5; lithium hydroxide which is completely dried flies into the discharging cavity 9, and lithium hydroxide which is not completely dried falls into the circulating cavity 8 (since the weight of the lithium hydroxide increases after the lithium hydroxide absorbs moisture, the weight of the lithium hydroxide gradually decreases with the increase of the drying degree, and under the condition that the thrust of the blowing fan 12 is constant, the lithium hydroxide which is heavier and is not completely dried moves to the right in a shorter distance and falls into the circulating cavity 8, and the lithium hydroxide which is completely dried moves to the right in a longer distance and falls into the discharging cavity 9), the lithium hydroxide which falls into the circulating cavity 8 returns to the hot air box 3 again from the feeding port 4 on the right side, is driven by the suction fan 11 to suspend in the hot air box 3 for drying, and circulates until the lithium hydroxide reaches a completely dried state, and then falls into the discharging cavity 9 from the first discharging port 5; the lithium hydroxide falling into the discharging cavity 9 falls onto the belt conveying device 2 again, and then is conveyed to a collecting position by the belt conveying device 2; according to the invention, through the arrangement of the hot air box 3, the material distribution box 6, the circulating cavity 8, the discharging cavity 9 and the circulating drying component, lithium hydroxide conveyed by the belt conveying device 2 can be suspended in the hot air box 3 under the action of air flow and air pressure when entering the hot air box 3, the outer wall of the suspended lithium hydroxide is completely exposed in the air, and the lithium hydroxide can be dried more quickly; the lithium hydroxide which is not completely dried can fall into the circulating cavity 8 through the different weights of the lithium hydroxide before and after drying, then the lithium hydroxide can return to the hot air box 3 from the feeding hole 4 on the right side again, and then the lithium hydroxide is driven by the air suction fan 11 to suspend in the hot air box 3 for drying and circulating until the lithium hydroxide is completely dried; the lithium hydroxide completely dried flies into the discharging cavity 9 and then falls onto the belt conveying device 2; the lithium hydroxide can be collected only after being dried thoroughly, the condition that the lithium hydroxide needs to be dried for many times due to incomplete drying of the lithium hydroxide can be avoided, and the drying efficiency of the lithium hydroxide can be greatly improved.
Claims (6)
1. The utility model provides a manufacturing installation of super battery level lithium hydrate, includes support frame (1) and belt conveyor (2), support frame (1) is the U-shaped form, belt conveyor (2) set up the inboard at support frame (1), its characterized in that: a hot air box (3) is arranged above the belt conveying device (2), and the hot air box (3) is fixedly connected with the inner wall of the support frame (1); the hot air box (3) is in a hollow rectangular cylinder shape with an opening at the bottom, and the bottom surface of the hot air box (3) is attached to the top surface of the belt conveying device (2); the left side wall and the right side wall of the hot air box (3) are both provided with a feeding hole (4), the right side wall of the hot air box (3) is provided with a first discharging hole (5), and the first discharging hole (5) is positioned above the first discharging hole (5) on the right side; a material distribution box (6) is arranged on the right side of the first discharge hole (5), the material distribution box (6) is fixedly connected with the hot air box (3), a partition plate (7) is fixedly connected to the inner wall of the material distribution box (6), and the material distribution box (6) is divided into a circulation cavity (8) and a discharge cavity (9) by the partition plate (7); the circulating cavity (8) is positioned on the left side of the discharging cavity (9); a second discharge hole (10) is formed in the right side wall of the discharge cavity (9); a circulating drying component is also arranged in the hot air box (3); the circulating drying assembly is used for circularly drying the lithium hydroxide in the hot air box (3) and conveying the dried lithium hydroxide into the discharging cavity (9) and then dropping the lithium hydroxide onto the belt conveying device (2);
the circulation drying component comprises a suction fan (11) and a blowing fan (12); the air suction fan (11) is positioned above the first discharge hole (5) and is rotationally connected with the inner wall of the top of the hot air box (3), a first motor (13) is connected to the rotating shaft of the air suction fan (11) in a transmission manner, and the first motor (13) is fixedly connected with the hot air box (3); the blowing fan (12) is arranged on the right left side of the first discharge hole (5), the blowing fan (12) is rotatably connected with the hot air box (3), a second motor (14) is connected to a rotating shaft of the blowing fan (12) in a transmission manner, and the second motor (14) is fixedly connected with the hot air box (3);
a material pressing component is arranged in the material outlet cavity (9); the pressing assembly comprises a pressing plate (15), a first baffle plate (16) and a driving part; the pressing plate (15) is rotatably connected with a first sliding rod (17), the first sliding rod (17) is in sliding connection with the material distribution box (6) in the vertical direction, a push rod (18) is arranged above the pressing plate (15), the push rod (18) is used for driving the pressing plate (15) to incline towards the lower right, the push rod (18) is in sliding connection with the material distribution box (6) in the vertical direction, a first spring (19) is fixedly connected to the push rod (18), and the bottom end of the first spring (19) is fixedly connected with the top of the material distribution box (6); the first baffle (16) is connected with the material distribution box (6) in a sliding mode in the vertical direction and used for shielding the second material outlet (10); the driving part is used for driving the pressing plate (15) to move downwards to compress the lithium hydroxide in the discharging cavity (9), and driving the first baffle (16) to move upwards to open the second discharging hole (10) in the process that the pressing plate (15) moves upwards after the lithium hydroxide is compressed.
2. The apparatus for producing extra-grade battery grade lithium hydroxide according to claim 1, wherein: the driving part comprises a cylinder (20) and a traction rope (21); the telescopic end of the air cylinder (20) is fixedly connected with the top of the first sliding rod (17), and the fixed end of the air cylinder (20) is fixedly connected with the support frame (1); the one end and first baffle (16) top fixed connection of haulage rope (21), the other end fixedly connected with roll-up roller (22) of haulage rope (21), roll-up roller (22) rotate with support frame (1) and are connected, fixedly connected with one-way bearing (23) in the axis of rotation of roll-up roller (22), fixedly connected with gear (24) on the outer circumferential wall of one-way bearing (23), the right side of gear (24) is provided with rack bar (25) that can rather than mesh, rack bar (25) and first slide bar (17) fixed connection.
3. The apparatus for producing extra-grade battery grade lithium hydroxide according to claim 2, wherein: the height of the feed inlet (4) on the left side is larger than that of the feed inlet (4) on the right side, a cover plate (26) is arranged on the outer side of the feed inlet (4) on the left side, the cover plate (26) is connected with the outer wall of the left side of the hot air box (3) in a sliding mode in the vertical direction, a telescopic baffle (27) is connected to the cover plate (26) in a rotating mode, the left end of the telescopic baffle (27) is connected with the inner wall of the support frame (1) in a rotating mode, and a connecting rod (28) is connected to the cover plate (26) in a rotating mode; the fan is characterized in that a rotating disc (29) is fixedly connected to a rotating shaft of the blowing fan (12), a rotating rod (30) is fixedly connected to a non-circle center position on the outer wall of the rotating disc (29), and the rotating rod (30) is rotatably connected with the connecting rod (28).
4. The apparatus for manufacturing super battery grade lithium hydroxide according to claim 3, wherein: the below of first slide bar (17) is provided with push pedal (31), drive inclined plane (32) have been seted up at the top of push pedal (31), the back lateral wall of push pedal (31) and the antetheca laminating of ejection of compact chamber (9), push pedal (31) and support frame (1) sliding connection in the front and back direction, fixedly connected with is used for its air spring (33) that resets on push pedal (31).
5. The apparatus for manufacturing super battery grade lithium hydroxide according to claim 4, wherein: the bottom of the circulation cavity (8) is provided with a material guide table (34), the material guide table (34) is fixedly connected with the material distribution box (6), and the material guide table (34) is located on the right side of the right side feeding hole (4).
6. A method for manufacturing super battery grade lithium hydroxide, which is suitable for the manufacturing device of the super battery grade lithium hydroxide as claimed in any one of claims 1-5, and is characterized in that the method comprises the following steps:
the method comprises the following steps: lithium hydroxide needing to be dried is placed on the belt conveying device (2), and the belt conveying device (2) can convey the lithium hydroxide to the right side;
step two: after the lithium hydroxide moves to the inner side of the telescopic baffle plate (27), starting the circulating drying assembly, enabling the circulating drying assembly to enable the lithium hydroxide in the hot air box (3) to generate negative pressure, and enabling the lithium hydroxide on the belt conveying device (2) to float in the hot air box (3);
step three: then the circulating drying assembly blows out the lithium hydroxide from the first discharge hole (5), the lithium hydroxide which is dried completely falls into the discharge cavity (9), and the lithium hydroxide which is not dried completely falls into the circulating cavity (8);
step four: the lithium hydroxide which is completely dried is conveyed to a collecting position by the belt conveying device (2), the lithium hydroxide which is not completely dried returns to the hot air box (3) from the circulating cavity (8) to be dried again, and the lithium hydroxide circulates and reciprocates until the lithium hydroxide is completely dried and then falls into the discharging cavity (9).
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| CN202210266874.6A CN114659340B (en) | 2022-03-17 | 2022-03-17 | Manufacturing device and manufacturing method of super battery grade lithium hydroxide |
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| CN202210266874.6A CN114659340B (en) | 2022-03-17 | 2022-03-17 | Manufacturing device and manufacturing method of super battery grade lithium hydroxide |
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| FR2855716B1 (en) * | 2003-06-06 | 2005-09-02 | Alfagreen S R L | PROCESS AND INSTALLATION FOR OPTIMIZED DRYING OF LUZERNES |
| RU2380632C1 (en) * | 2008-05-12 | 2010-01-27 | Федеральное государственное образовательное учреждение высшего профессионального образования "Башкирский государственный аграрный университет" | Drying and sorting plant for loose materials |
| CN201454851U (en) * | 2009-09-04 | 2010-05-12 | 中国矿业大学 | Large-scale vibration counterflow fluidized bed dry sorting machine |
| CN203173849U (en) * | 2013-04-02 | 2013-09-04 | 宜宾天原集团股份有限公司 | Circulating entrained-flow bed device for modifying titanium concentrate |
| CN206478949U (en) * | 2016-12-29 | 2017-09-08 | 安徽今朝环保科技有限公司 | A kind of floated abraum salt annealing device |
| CN111001570A (en) * | 2019-12-16 | 2020-04-14 | 荆门欧曼凯机电设备有限公司 | Multistage wind-force formula plastic refuse is wet separator futilely |
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