Lithium carbonate crystal drying device

Abstract

The utility model relates to the technical field of lithium carbonate crystal production, in particular to a lithium carbonate crystal drying device which comprises a drying furnace, a plurality of groups of material trays are clamped in the drying furnace, a sealing cover is clamped at an opening in the top of the drying furnace, and the drying furnace comprises a furnace body. A plurality of sets of material disc limiting clamping grooves are annularly formed in the inner wall of the furnace body at equal angles, each material disc comprises a disc body, four clamping block containing grooves are annularly formed in the side surface of each disc body at equal angles, limiting clamping blocks are hinged into the clamping block containing grooves, and return springs are fixedly installed in the clamping block containing grooves. According to the lithium carbonate crystal drying device, feeding and discharging are facilitated, meanwhile, a novel lithium carbonate crystal drying mode is provided, multiple layers of lithium carbonate crystal containers can be placed in one furnace body at the same time, simultaneous drying is carried out, the actual number of lithium carbonate crystals dried in the same batch is greatly increased, and then the lithium carbonate crystal drying efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium carbonate crystal production, in particular to a lithium carbonate crystal drying device. Background Art

[0002] Lithium carbonate is an important raw material for lithium-ion batteries. It usually appears as colorless monoclinic crystals or white powder. In the production configuration, a drying process is required to ensure that the water content of the lithium carbonate crystals can meet the production requirements of lithium-ion batteries.

[0003] In order to ensure that the lithium carbonate crystals can be fully dried, some of the current lithium carbonate crystal drying devices need to ensure that the thickness of the lithium carbonate crystals in a single container is thin enough to prevent the upper layer of lithium carbonate from hindering the volatilization of water in the bottom lithium carbonate, which in turn leads to a limited number of lithium carbonate crystals that can be dried in a single batch. There is still room for improvement in drying efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a lithium carbonate crystal drying device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A lithium carbonate crystal drying device comprises a drying furnace, wherein a plurality of material trays are clamped inside the drying furnace, a sealing cover is clamped at the top opening of the drying furnace, the drying furnace comprises a furnace body, a plurality of material tray limiting slots are formed in annular shapes and at equal angles on the inner wall of the furnace body, the material tray comprises a tray body, a side surface of the tray body is formed in annular shapes and at equal angles on the side surface of the tray body, a limiting block is hinged in the block receiving slot, and a return spring is fixedly installed in the block receiving slot.

[0007] Furthermore, a plurality of clip-on plates are fixedly installed at the top opening of the furnace body in a circular shape at equal angles, a heating resistor is buried and wound inside the furnace wall, a plurality of steam exhaust ports are interspersed on the inner wall of the furnace body in a circular shape at equal angles, a rotating shaft is rotatably installed on the bottom side of the furnace body through bearings, a plurality of scraper clip-on grooves are opened on the side surface of the rotating shaft in a circular shape at equal angles, and a docking slot is opened on the top of the rotating shaft.

[0008] Further, handles are fixedly installed at the edges of both sides of the dish body, a first arc bottom is provided at the bottom of the dish body, and a first water receiving edge is fixedly installed at the edge of the first arc bottom.

[0009] Furthermore, the middle part of the disk body is fixedly connected to the outer ring of the No. 1 bearing, a ring is fixedly installed on the upper side of the inner ring of the No. 1 bearing, a plurality of connecting rods are fixedly installed at equal angles in a ring shape on the side surface of the ring, a scraper is fixedly installed on the bottom side of the connecting rod, and spring pins are embedded in the ring and the connecting rod.

[0010] Furthermore, the sealing cover comprises a cover body, a side surface of the cover body is provided with a plurality of limit slots in a circular shape with equal angles, a motor is fixedly installed in the middle of the upper surface of the cover body, a second arc bottom is provided at the bottom of the cover body, a second water receiving edge is fixedly installed at the edge of the second arc bottom, a second bearing is fixedly installed at the top of the second arc bottom, and a clamping end is fixedly installed at the output end of the motor.

[0011] Furthermore, the tray body is clamped in the furnace body, the limit clamping block and the tray limit clamping groove are clamped with each other, and one end of the spring clamping pin is clamped with the scraper clamping groove.

[0012] Furthermore, the cover body and the upper opening of the furnace body are mutually clamped, the limit clamping groove and the clamping plate are mutually clamped, and the clamping end and the docking slot are mutually clamped.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. Insert each tray containing the lithium carbonate crystals to be dried into the furnace body in turn, and use the inner wall of the furnace body to press each limit card block so that the limit card block is stored in the card block storage slot. When the tray body slides down to the appropriate position, rotate the tray body, and use the compressed return spring to provide thrust to make the limit card block snap into the corresponding position of the tray limit card slot, so as to relatively fix each tray body. When taking out the tray body, it is only necessary to rotate the tray body in the opposite direction, and use the furnace body to re-press the limit card block to retract it into the card block storage slot, release the lock, and directly pull it out. While facilitating loading and unloading, a new type of lithium carbonate crystal drying method is proposed, which can place multiple layers of lithium carbonate crystal containers in one furnace body at the same time for the same drying, greatly increasing the actual number of lithium carbonate crystals dried in the same batch, thereby improving the drying efficiency of lithium carbonate crystals.

[0015] 2. When placing each disc, the rotating shaft passes through the middle of each disc to play a guiding role. After installation, the No. 1 bearing provides a rotating connection between the disc, the collar and the rotating shaft, and the collar and the rotating shaft are in a relatively fixed connection state through the spring pin. After the cover body is clamped on the opening of the furnace body, the motor rotates the rotating shaft, and then rotates each group of collars, driving each scraper to rotate in the disc, turning over the lithium carbonate crystals, accelerating drying, and integrating the scraper with the disc, which can be disassembled and assembled along with the disc to avoid interference with the disassembly and assembly of the disc by the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of a drying furnace in the utility model;

[0018] Figure 3 It is a schematic diagram of the material tray in the utility model;

[0019] Figure 4 It is a cross-sectional view of the material tray in the utility model;

[0020] Figure 5 It is a schematic diagram of the sealing cover in the utility model.

[0021] In the figure: 1. drying furnace; 101. furnace body; 102. clamping plate; 103. heating resistor; 104. exhaust port; 105. material tray limiting slot; 106. rotating shaft; 107. scraper clamping slot; 108. docking slot; 2. material tray; 201. tray body; 202. handle; 203. card block storage slot; 204. limiting card block; 205. return spring; 206. No. 1 arc bottom; 207. No. 1 water receiving edge; 208. No. 1 bearing; 209. collar; 210. connecting rod; 211. scraper; 212. spring latch; 3. cover; 301. cover body; 302. limiting slot; 303. motor; 304. No. 2 arc bottom; 305. No. 2 water receiving edge; 306. No. 2 bearing; 307. clamping end. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 5 In an embodiment of the utility model, a lithium carbonate crystal drying device includes a drying furnace 1, a plurality of material trays 2 are clamped inside the drying furnace 1, a sealing cover 3 is clamped at the top opening of the drying furnace 1, the drying furnace 1 includes a furnace body 101, and a plurality of material tray limiting slots 105 are opened at equal angles in an annular shape on the inner wall of the furnace body 101, the material tray 2 includes a tray body 201, and four card block receiving slots 203 are opened at equal angles in an annular shape on the side surface of the tray body 201, and a limiting card block 204 is hinged in the card block receiving slot 203, and a return spring 205 is fixedly installed inside the card block receiving slot 203; the tray body 201 is clamped inside the furnace body 101, and the limiting card block 204 and the material tray limiting slot 105 are clamped with each other.

[0024] Specifically, each tray 201 containing the lithium carbonate crystals to be dried is inserted into the furnace body 101 in turn, and the inner wall of the furnace body 101 is used to press each limit block 204 so that the limit block 204 is received in the block receiving groove 203. When the tray 201 slides down to a suitable position, the tray 201 is rotated, and the return spring 205 in a compressed state provides a thrust to make the limit block 204 snap into the corresponding position of the tray limit slot 105, so that each tray 201 is relatively fixed. When taking out the tray 201, it is only necessary to rotate the tray 201 in the opposite direction, and use the furnace body 101 to re-press the limit block 204 to retract it into the block receiving groove 203, release the lock, and directly pull it out. While facilitating loading and unloading, a new type of lithium carbonate crystal drying method is proposed, which can place multiple layers of lithium carbonate crystal containers in one furnace body 101 at the same time for the same drying, greatly increasing the actual number of lithium carbonate crystals dried in the same batch, thereby improving the drying efficiency of the lithium carbonate crystals.

[0025] Embodiment 1

[0026] like Figure 2-3 As shown, in this embodiment, a plurality of clamping plates 102 are fixedly installed at an annular shape and equal angles at the top opening of the furnace body 101, a heating resistor 103 is buried and wound in the furnace wall of the furnace body 101, and a plurality of groups of exhaust ports 104 are interspersed in an annular shape and equal angles on the inner wall of the furnace body 101.

[0027] In this embodiment, the interior of the entire furnace body 101 is divided into independent drying chambers by each disk 201, and each heating resistor 103 is independently heated to increase the temperature to accelerate the evaporation of water inside the lithium carbonate crystals. The water vapor is then discharged from the exhaust port 104 on the upper edge of the side surface of each drying chamber.

[0028] like Figure 3-5 As shown, in this embodiment, handles 202 are fixedly installed on the edges of both sides of the plate body 201, a first arc bottom 206 is provided at the bottom of the plate body 201, and a first water receiving edge 207 is fixedly installed at the edge of the first arc bottom 206; a second arc bottom 304 is provided at the bottom of the cover body 301, and a second water receiving edge 305 is fixedly installed at the edge of the second arc bottom 304.

[0029] In specific implementation, when the water content of lithium carbonate crystals is too high and too much water vapor is generated, which cannot be discharged from the exhaust port 104 in time, the water droplets condensed from the water vapor on the top of the drying chamber are guided to the first water receiving edge 207 and the second water receiving edge 305 through the first arc bottom 206 and the second arc bottom 304 as a special situation response measure to prevent the water droplets from dripping back into the lithium carbonate crystals and affecting the drying effect.

[0030] Embodiment 2

[0031] On the basis of the first embodiment, in order to compensate for the fact that when the lithium carbonate crystals in the tray 201 are heated and dried in the first embodiment, the lithium carbonate crystals on the top layer will hinder the volatilization of water in the lithium carbonate crystals on the bottom side, thus affecting the drying effect.

[0032] like Figure 1-5 As shown, in this embodiment, a rotating shaft 106 is rotatably installed on the bottom side of the furnace body 101 through a bearing, and a plurality of scraper clamping grooves 107 are provided at equal angles in an annular shape on the side surface of the rotating shaft 106, and a docking slot 108 is provided at the top of the rotating shaft 106; the middle part of the disk body 201 is fixedly connected to the outer ring of the No. 1 bearing 208, and a collar 209 is fixedly installed on the upper side of the inner ring of the No. 1 bearing 208, and a plurality of connecting rods 210 are fixedly installed on the side surface of the collar 209 at equal angles in an annular shape, and a scraper 211 is fixedly installed on the bottom side of the connecting rod 210, and a plurality of connecting rods 210 are embedded in the collar 209 and the connecting rod 210. Spring latch 212; the cover 3 includes a cover body 301, and a plurality of limit slots 302 are provided on the side surface of the cover body 301 in a circular shape with equal angles. A motor 303 is fixedly installed in the middle of the upper surface of the cover body 301, a No. 2 bearing 306 is fixedly installed on the top of the No. 2 arc bottom 304, and a clamping end 307 is fixedly installed at the output end of the motor 303; one end of the spring latch 212 is mutually clamped with the scraper clamping groove 107; the cover body 301 is mutually clamped with the upper opening of the furnace body 101, the limit slot 302 is mutually clamped with the clamping plate 102, and the clamping end 307 is mutually clamped with the docking slot 108.

[0033] In specific implementation, when placing each disk body 201, the rotating shaft 106 passes through the middle of each disk body 201 to play a guiding role. After installation, the No. 1 bearing 208 provides a rotational connection between the disk body 201, the collar 209 and the rotating shaft 106, and the spring latch 212 makes the collar 209 and the rotating shaft 106 in a relatively fixed connection state. After the cover body 301 is clamped on the opening of the furnace body 101, the rotating shaft 106 is rotated by the motor 303, and then each group of collars 209 is rotated, driving each scraper 211 to rotate in the disk body 201, turning over the lithium carbonate crystals contained therein, accelerating drying, and integrating the scraper 211 with the disk body 201, so that it can be disassembled and assembled along with the disassembly and assembly of the disk body 201, avoiding the scraper 211 from interfering with the disassembly and assembly of the disk body 201.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A lithium carbonate crystal drying device, comprising a drying furnace (1), characterized in that: A plurality of material trays (2) are clamped inside the drying furnace (1), a sealing cover (3) is clamped at the top opening of the drying furnace (1), the drying furnace (1) comprises a furnace body (101), the inner wall of the furnace body (101) is provided with a plurality of material tray limiting clamping grooves (105) in the form of an annular shape and at equal angles, the material tray (2) comprises a tray body (201), the side surface of the tray body (201) is provided with four clamping block receiving grooves (203) in the form of an annular shape and at equal angles, a limiting clamping block (204) is hinged inside the clamping block receiving groove (203), and a return spring (205) is fixedly installed inside the clamping block receiving groove (203).

2. A lithium carbonate crystal drying device according to claim 1, characterized in that, A plurality of clamping plates (102) are fixedly mounted at an annular shape and at equal angles at the top opening of the furnace body (101); a heating resistor (103) is embedded and wound in the furnace wall of the furnace body (101); a plurality of steam exhaust ports (104) are interspersed and arranged at an annular shape and at equal angles on the inner wall of the furnace body (101); a rotating shaft (106) is rotatably mounted on the bottom side of the furnace body (101) via a bearing; a plurality of scraper clamping grooves (107) are arranged at an annular shape and at equal angles on the side surface of the rotating shaft (106); and a docking slot (108) is arranged at the top end of the rotating shaft (106).

3. A lithium carbonate crystal drying device according to claim 2, characterized in that, Handles (202) are fixedly mounted on the edges of both sides of the tray body (201), a first arc bottom (206) is provided at the bottom of the tray body (201), and a first water receiving edge (207) is fixedly mounted on the edge of the first arc bottom (206).

4. A lithium carbonate crystal drying device according to claim 3, characterized in that, The middle part of the disk body (201) is fixedly connected to the outer ring of the No. 1 bearing (208); a collar (209) is fixedly installed on the upper side of the inner ring of the No. 1 bearing (208); a plurality of connecting rods (210) are fixedly installed at equal angles in a ring shape on the side surface of the collar (209); a scraper (211) is fixedly installed on the bottom side of the connecting rod (210); and a spring latch (212) is embedded and installed inside the collar (209) and the connecting rod (210).

5. A lithium carbonate crystal drying device according to claim 4, characterized in that, The sealing cover (3) comprises a cover body (301), a side surface of the cover body (301) is provided with a plurality of limit slots (302) at equal angles in a ring shape, a motor (303) is fixedly mounted in the middle of the upper surface of the cover body (301), a second arc surface bottom (304) is provided at the bottom of the cover body (301), a second water receiving edge (305) is fixedly mounted at the edge of the second arc surface bottom (304), a second bearing (306) is fixedly mounted at the top of the second arc surface bottom (304), and a clamping end (307) is fixedly mounted at the output end of the motor (303).

6. A lithium carbonate crystal drying device according to claim 5, characterized in that: The tray body (201) is clamped inside the furnace body (101), the limiting clamping block (204) and the tray limiting clamping groove (105) are mutually clamped, and one end of the spring clamping pin (212) and the scraper clamping groove (107) are mutually clamped.

7. A lithium carbonate crystal drying device according to claim 6, characterized in that: The cover body (301) and the upper opening of the furnace body (101) are mutually clamped, the limit clamping groove (302) and the clamping plate (102) are mutually clamped, and the clamping end (307) and the docking slot (108) are mutually clamped.

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