Drying equipment for producing battery-grade lithium hydroxide

Abstract

The utility model relates to the technical field of drying equipment, in particular to drying equipment for battery-grade lithium hydroxide production, which comprises an air heater, a drying box, a recycling vehicle, a first recycling assembly and a second recycling assembly, the air heater is fixedly mounted at the bottom end in a mounting frame, and the drying box is fixedly mounted at the top end in the mounting frame; the front end of the top of the drying box is provided with a feeding end, the lower end of the drying box is provided with a discharging end, the recycling vehicle is arranged under the discharging end of the lower end of the drying box, the recycling vehicle is located on the right side of the hot-air blower, and the lower end of the recycling vehicle penetrates through the bottom of the mounting frame; four universal wheels are installed at the lower end of the recycling vehicle in a rectangular array mode, and the first recycling assembly and the second recycling assembly are both installed on the installation frame. The battery-grade lithium hydroxide drying device can efficiently dry battery-grade lithium hydroxide, and waste heat and water vapor generated by drying can be recycled.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, and in particular to a drying equipment for the production of battery-grade lithium hydroxide. Background Technology

[0002] Lithium hydroxide is an important raw material for the cathode material of lithium-ion batteries, and its purity and dryness directly affect the performance and safety of the battery.

[0003] Drying equipment is required for the production of battery-grade lithium hydroxide. However, existing drying equipment for battery-grade lithium hydroxide production has the following problems:

[0004] Existing drying equipment used for the production of battery-grade lithium hydroxide generates water vapor and waste heat from the drying process, which is directly discharged. Direct discharge of water vapor leads to waste of water resources, and direct discharge of waste heat leads to waste of thermal energy, resulting in poor energy-saving and environmental protection performance of the drying equipment. Therefore, a new drying equipment for the production of battery-grade lithium hydroxide is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a drying device for the production of battery-grade lithium hydroxide, so as to solve the problems mentioned in the background art.

[0006] The technical solution adopted in this utility model is:

[0007] A drying apparatus for the production of battery-grade lithium hydroxide, comprising:

[0008] Mounting rack;

[0009] The hot air blower is fixedly installed inside the bottom of the mounting bracket.

[0010] The drying chamber is fixedly installed inside the top of the mounting frame. The hot air blower is fixedly connected to a connecting pipe, and the other end of the connecting pipe is fixedly connected to the drying chamber. The feed end is installed at the front top of the drying chamber, and the discharge end is installed at the bottom of the drying chamber.

[0011] The recycling cart is located directly below the discharge end of the drying chamber, to the right of the hot air blower. The lower end of the cart extends through the bottom of the mounting frame, and four casters are mounted in a rectangular array at its lower end.

[0012] Both the first and second recovery components are mounted on the mounting frame and are connected to the drying chamber.

[0013] Optional, also includes:

[0014] The motor is fixedly installed on the upper end of the mounting frame. The lower end of the motor output shaft passes through the mounting frame and the upper end of the drying box, and extends to the bottom of the drying box. Multiple stirring blades are symmetrically fixedly installed on both the left and right ends of the motor output shaft.

[0015] Optional, also includes:

[0016] The filter plate is fixedly installed on the inner wall of the drying oven. The other end of the connecting pipe passes through the top left end of the drying oven and the filter plate in sequence, and the stirring blade is located below the filter plate.

[0017] Optionally, the first recycling component includes:

[0018] The first recovery tube is fixedly connected to the mounting frame. One end of the first recovery tube passes through the upper end of the mounting frame and the upper end of the drying box in sequence, and extends into the interior of the drying box. The other end of the first recovery tube is fixed to the right end face of the mounting frame.

[0019] Optionally, the first recycling component further includes:

[0020] A cooling shroud is fixedly installed on the right end of the mounting bracket. A first recovery pipe passes through the cooling shroud, and a cooling fan is installed on the right end face of the cooling shroud, located to the right of the first recovery pipe.

[0021] The recycling box is fixedly installed on the right end face of the mounting bracket, and is located directly below the first recycling pipe and the cooling cover.

[0022] Optionally, the second recycling component includes:

[0023] The mounting platform is fixedly installed inside the left end face of the mounting frame, and a support base is fixedly installed on the upper part of the mounting platform; and

[0024] The second recovery pipe is connected at one end to the rear end of the drying chamber, and the connection between the second recovery pipe and the drying chamber is located above the filter plate.

[0025] Optionally, the second recycling component further includes:

[0026] An air pump is installed on the second recovery pipe and fixed to the upper surface of the mounting platform.

[0027] Optionally, the second recycling component further includes:

[0028] A thermometer is installed at the upper end of the second recovery tube, with the thermometer's sensing end passing through the upper end of the second recovery tube and extending into the interior of the second recovery tube.

[0029] Compared with the prior art, the beneficial effects of this utility model are:

[0030] 1. Battery-grade lithium hydroxide is fed into the drying chamber through the feeding end. By starting the hot air blower, hot air is generated and introduced into the drying chamber through the connecting pipe to dry the battery-grade lithium hydroxide. The dried battery-grade lithium hydroxide falls into the recycling vehicle through the discharge end, and the recycling vehicle quickly feeds the dried battery-grade lithium hydroxide. By starting the motor, the motor drives the stirring blades to rotate, which can stir the battery-grade lithium hydroxide and make it fully contact the hot air, thereby improving the drying efficiency of the battery-grade lithium hydroxide.

[0031] 2. The water vapor generated during drying flows into the first recovery pipe. The cooling fan in the cooling hood is started to quickly cool the water vapor in the first recovery pipe. The water vapor condenses into water and flows into the recovery box for storage. After drying is completed, the battery-grade lithium hydroxide is discharged from the discharge end of the drying box. At this time, the discharge end of the drying box is closed, and then the air pump is started. The air pump can draw out the hot air in the drying box through the second recovery pipe for recovery. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of this application;

[0034] Figure 2 This is a schematic diagram of the right-side structure of this application;

[0035] Figure 3 This is the front view of this application;

[0036] Figure 4 for Figure 3 A partial structural cross-sectional view.

[0037] Figure label:

[0038] 1. Mounting frame; 2. Hot air blower; 3. Recycling cart; 5. Motor; 6. Drying oven; 7. Connecting pipe; 9. Filter plate; 10. Agitator blades;

[0039] 401. First recovery pipe; 402. Cooling cover; 403. Recovery box;

[0040] 801. Air pump; 802. Second recovery pipe; 803. Support base; 804. Mounting platform; 805. Thermometer. Detailed Implementation

[0041] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] like Figure 1 and Figure 4 As shown, this utility model embodiment provides a drying device for the production of battery-grade lithium hydroxide, including a hot air blower 2, a drying chamber 6, a recycling cart 3, a first recycling component, and a second recycling component. The hot air blower 2 is fixedly installed at the bottom of the mounting frame 1, and the drying chamber 6 is fixedly installed at the top of the mounting frame 1. A connecting pipe 7 is fixedly connected to the air outlet of the hot air blower 2, and the other end of the connecting pipe 7 is fixedly connected to the drying chamber 6. A feeding end is installed at the front top of the drying chamber 6, and a discharging end is installed at the bottom of the drying chamber 6. The recycling cart 3 is located directly below the discharging end at the bottom of the drying chamber 6, and is located to the right of the hot air blower 2. The lower end of the recycling cart 3 extends through the bottom of the mounting frame 1, and four universal wheels are installed in a rectangular array at the lower end of the recycling cart 3. Both the first recycling component and the second recycling component are installed on the mounting frame 1, and both the first recycling component and the second recycling component are connected to the drying chamber 6.

[0044] Battery-grade lithium hydroxide can be fed into the drying chamber 6 through the feeding end. By starting the hot air blower 2, the hot air blower 2 generates hot air, which can be introduced into the drying chamber 6 through the connecting pipe 7 to dry the battery-grade lithium hydroxide. The dried battery-grade lithium hydroxide can fall into the recycling vehicle 3 through the discharge end, so that the recycling vehicle 3 can quickly feed the dried battery-grade lithium hydroxide.

[0045] In this embodiment, a motor 5 is also included, which is fixedly installed on the upper surface of the mounting frame 1. The lower end of the output shaft of the motor 5 passes through the mounting frame 1 and the upper end of the drying box 6 in sequence, and extends to the bottom of the interior of the drying box 6. Multiple stirring blades 10 are symmetrically fixedly installed on both the left and right ends of the output shaft of the motor 5.

[0046] By starting the motor 5, the motor 5 drives the stirring blade 10 to rotate. The rotating stirring blade 10 can stir the battery-grade lithium hydroxide, allowing the battery-grade lithium hydroxide to fully contact with the hot air, thereby improving the drying efficiency of the battery-grade lithium hydroxide.

[0047] It also includes a filter plate 9, which is fixedly installed on the inner wall of the drying oven 6. The other end of the connecting pipe 7 passes through the top left end of the drying oven 6 and the filter plate 9 in sequence, and the stirring blade 10 is located below the filter plate 9.

[0048] By setting up the filter plate 9, dust inside the drying chamber 6 can be prevented from entering the recovery component when the second recovery component is recovering the waste heat inside the drying chamber 6.

[0049] like Figure 1-2 As shown, the first recycling component includes a first recycling tube 401, which is fixedly connected to the mounting frame 1. One end of the first recycling tube 401 passes through the upper end of the mounting frame 1 and the upper end of the drying box 6 in sequence, and extends into the interior of the drying box 6. The other end of the first recycling tube 401 is fixed to the right end face of the mounting frame 1.

[0050] The first recycling assembly also includes a cooling cover 402 and a recycling box 403. The cooling cover 402 is fixedly installed on the right end of the mounting bracket 1. The first recycling pipe 401 passes through the cooling cover 402. A cooling fan is installed on the right end face inside the cooling cover 402 and located to the right of the first recycling pipe 401. The recycling box 403 is fixedly installed on the right end face of the mounting bracket 1 and is located directly below the first recycling pipe 401 and the cooling cover 402.

[0051] The water vapor generated during drying flows into the first recovery pipe 401. The cooling fan in the cooling cover 402 is activated to quickly cool down the water vapor in the first recovery pipe 401. The water vapor condenses into water, which flows into the recovery box 403 for storage.

[0052] like Figure 3-4 As shown, the second recycling component includes a mounting platform 804 and a second recycling pipe 802. The mounting platform 804 is fixedly installed on the left end face inside the mounting frame 1. A support base 803 is fixedly installed on the upper end of the mounting platform 804. One end of the second recycling pipe 802 is connected to the rear end of the drying chamber 6, and the connection between the second recycling pipe 802 and the drying chamber 6 is located above the filter plate 9.

[0053] The second recovery assembly also includes an air pump 801, which is mounted on the second recovery pipe 802 and fixed to the upper surface of the mounting platform 804.

[0054] After drying is complete, the battery-grade lithium hydroxide is discharged from the discharge end of the drying chamber 6. At this time, the discharge end of the drying chamber 6 is closed, and then the air pump 801 is started. The air pump 801 can draw out the hot air in the drying chamber 6 through the second recovery pipe 802 for recovery.

[0055] The second recycling assembly also includes a thermometer 805, which is installed on the upper end of the second recycling tube 802, and the sensing end of the thermometer 805 passes through the upper end of the second recycling tube 802 and extends into the interior of the second recycling tube 802.

[0056] The temperature of the hot gas drawn from the drying chamber 6 can be detected by thermometer 805. When the temperature of the hot gas drops below the recovery standard, the recovery can be stopped.

[0057] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A drying apparatus for the production of battery-grade lithium hydroxide, characterized in that, include: Mounting frame (1); hot air blower (2), fixedly installed at the bottom of the mounting frame (1); drying box (6), fixedly installed at the top of the mounting frame (1), the hot air blower (2) is fixedly connected to a connecting pipe (7), the other end of the connecting pipe (7) is fixedly connected to the drying box (6), the front end of the top of the drying box (6) is installed with a feeding end, and the bottom end of the drying box (6) is installed with a discharging end; recycling cart (3), located directly below the discharging end of the bottom of the drying box (6), the recycling cart (3) is located to the right of the hot air blower (2), the bottom end of the recycling cart (3) runs through the bottom of the mounting frame (1), and the bottom end of the recycling cart (3) is equipped with four universal wheels in a rectangular array; and the first recycling component and the second recycling component are both installed on the mounting frame (1), and the first recycling component and the second recycling component are both connected to the drying box (6).

2. The drying equipment for the production of battery-grade lithium hydroxide according to claim 1, characterized in that, Also includes: The motor (5) is fixedly installed on the upper surface of the mounting frame (1). The lower end of the output shaft of the motor (5) passes through the mounting frame (1) and the upper end of the drying box (6) in sequence, and extends to the bottom of the drying box (6). Multiple stirring blades (10) are symmetrically fixedly installed on both the left and right ends of the output shaft of the motor (5).

3. A drying apparatus for the production of battery-grade lithium hydroxide according to claim 2, characterized in that, Also includes: The filter plate (9) is fixedly installed on the inner wall of the drying box (6). The other end of the connecting pipe (7) passes through the top left end of the drying box (6) and the filter plate (9) in sequence. The stirring blade (10) is located below the filter plate (9).

4. A drying apparatus for the production of battery-grade lithium hydroxide according to claim 3, characterized in that, The first recycling component includes: a first recycling tube (401), which is fixedly connected to the mounting frame (1). One end of the first recycling tube (401) passes through the upper end of the mounting frame (1) and the upper end of the drying box (6) in sequence, and extends into the interior of the drying box (6). The other end of the first recycling tube (401) is fixed to the right end face of the mounting frame (1).

5. A drying apparatus for the production of battery-grade lithium hydroxide according to claim 4, characterized in that, The first recycling assembly further includes: a cooling cover (402), which is fixedly installed on the right end of the mounting frame (1), a first recycling pipe (401) passing through the cooling cover (402), and a cooling fan installed on the right end face of the cooling cover (402) and on the right side of the first recycling pipe (401); and a recycling box (403), which is fixedly installed on the right end face of the mounting frame (1), and the recycling box (403) is located directly below the first recycling pipe (401) and the cooling cover (402).

6. A drying apparatus for the production of battery-grade lithium hydroxide according to claim 5, characterized in that, The second recycling component includes: a mounting platform (804), which is fixedly installed on the left side inside the mounting frame (1), and a support base (803) is fixedly installed on the upper end of the mounting platform (804); and a second recycling pipe (802), one end of which is connected to the rear end of the drying box (6), and the connection between the second recycling pipe (802) and the drying box (6) is located above the filter plate (9).

7. A drying apparatus for the production of battery-grade lithium hydroxide according to claim 6, characterized in that, The second recycling component also includes an air pump (801), which is installed on the second recycling pipe (802) and the air pump (801) is fixed to the upper end face of the mounting platform (804).

8. A drying apparatus for the production of battery-grade lithium hydroxide according to claim 7, characterized in that, The second recycling component further includes a thermometer (805) installed on the upper end of the second recycling tube (802), with the sensing end of the thermometer (805) passing through the upper end of the second recycling tube (802) and extending into the interior of the second recycling tube (802).

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