Aluminum fluoride crystal growing device

Abstract

The utility model discloses an aluminum fluoride crystal growing device which comprises a crystallizing tank and a stirring part, the stirring part is arranged in the crystallizing tank and provided with a rotating shaft rotationally arranged in the crystallizing tank, a fixed transmission rod is rotationally arranged in the rotating shaft, a supporting frame is fixedly arranged at the top of the crystallizing tank, and the supporting frame is fixedly connected with the crystallizing tank. The bottom of the supporting frame is fixedly connected with the top of the fixed transmission rod, a plurality of stirring rods are rotationally arranged on the outer side of the rotating shaft and meshed with the fixed transmission rod, and the rotating shaft rotates to drive the stirring rods to revolve around the fixed transmission rod so as to drive the stirring rods to rotate. By arranging the crystallizing tank and the stirring part, when aluminum fluoride mother liquor is stirred, the stirring rod rotationally arranged on the side surface of the rotating shaft is driven to revolve around the fixed transmission rod through the rotation of the rotating shaft, so that the fixed transmission rod drives the stirring rod to rotate, and a plurality of stirring centers are formed in the crystallizing tank; and the efficiency of separating out aluminum fluoride crystals from the aluminum fluoride mother liquor is improved.

Description

Technical Field

[0001] This utility model relates to the field of aluminum fluoride crystal growth technology, specifically to an aluminum fluoride crystal growth device. Background Technology

[0002] Aluminum fluoride is an inorganic compound with the chemical formula AlF3, appearing as colorless or white crystals. It is insoluble in water, acids, and alkalis. It is very stable but hydrolyzes upon heating. It is primarily used in aluminum smelting. It can be produced by reacting aluminum trichloride with hydrofluoric acid and ammonia. In aluminum production, it is mainly used to lower the melting point and improve the conductivity of electrolytes. In alcohol production, it is used as an inhibitor of by-fermentation. Aluminum fluoride crystals have important applications in optics, laser technology, and semiconductors, exhibiting particularly excellent performance in ultraviolet optical devices. Crystal growth equipment, through precise control of temperature, pressure, and environmental conditions, promotes the crystallization of aluminum fluoride from the molten state or gas phase, forming high-quality single or polycrystalline crystals.

[0003] Currently, when growing aluminum fluoride crystals, an aluminum fluoride crystallization device is needed to heat the aluminum fluoride mother liquor. While heating, the aluminum fluoride mother liquor also needs to be stirred. When heated to 90°-100°, aluminum fluoride crystals can be precipitated from the aluminum fluoride mother liquor. However, in the existing crystallization tank, only a single stirring shaft rotates inside when stirring the raw materials. This results in a low axial flow velocity of the mash at the central axis inside the saccharification pot and a higher velocity near the inner wall. Consequently, the overall stirring effect is poor and insufficient, which affects the efficiency of aluminum fluoride crystal precipitation. Utility Model Content

[0004] The purpose of this invention is to provide an aluminum fluoride crystal growth device to solve the problem mentioned in the background art that in the prior art, when the crystallization tank is stirring the raw materials, only a single stirring shaft rotates inside, which results in a low axial flow velocity of the mash at the central axis of the saccharification pot and a higher velocity near the inner wall, thus leading to poor overall stirring effect and insufficient stirring, which affects the efficiency of aluminum fluoride crystal precipitation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an aluminum fluoride crystal growth device, comprising a crystallization tank and a stirring unit:

[0006] The stirring unit is located inside the crystallization tank. The stirring unit has a rotating shaft that is rotatably installed inside the crystallization tank. A fixed transmission rod is rotatably installed inside the rotating shaft. A support frame is fixedly installed on the top of the crystallization tank. The bottom of the support frame is fixedly connected to the top of the fixed transmission rod. Several stirring rods are rotatably installed on the outside of the rotating shaft. The stirring rods are meshed with the fixed transmission rod. The rotation of the rotating shaft drives the stirring rods to revolve around the fixed transmission rod, thereby driving the stirring rods to rotate on their own axis.

[0007] By adopting the above technical solution, when stirring the aluminum fluoride mother liquor, the rotation of the rotating shaft drives the stirring rod, which is set on the side of the rotating shaft, to revolve around the fixed transmission rod. This causes the fixed transmission rod to drive the stirring rod to rotate, resulting in multiple stirring centers inside the crystallizer, which improves the efficiency of aluminum fluoride crystal precipitation from the aluminum fluoride mother liquor.

[0008] Preferably, the crystallizer has an inlet port at the top and an outlet port at the bottom, and a heating coil is provided on the outer side of the crystallizer.

[0009] By adopting the above technical solution, aluminum fluoride mother liquor can be added from the feed inlet, and precipitated aluminum fluoride crystals can be discharged from the discharge outlet.

[0010] Preferably, the stirring part also has a transmission gear arranged around the outer wall of the top of the rotating shaft, and a motor is fixedly installed on the top of the crystallizing tank by bolts. The output end of the motor is provided with a power gear, which meshes with the transmission gear.

[0011] By adopting the above technical solution, the motor can drive the power gear disc to rotate, thereby driving the rotating shaft to rotate inside the crystallizer.

[0012] Preferably, the stirring part also has a rotating groove a formed inside the rotating shaft, and the fixed transmission rod is vertically embedded in the rotating groove a and rotatably connected to the rotating shaft.

[0013] By adopting the above technical solution, the rotating shaft can be made to rotate around the fixed transmission rod.

[0014] Preferably, the stirring part further has a rotating groove b formed on the side of the rotating shaft, the rotating groove b being in communication with the rotating groove a, and the stirring rod being embedded in the rotating groove b and rotatably connected to the rotating shaft.

[0015] By adopting the above technical solution, the stirring rod can be rotated inside the rotating tank b.

[0016] Preferably, the stirring part also has a bevel gear a disposed on the side of the fixed transmission rod, and a bevel gear b disposed at one end of the stirring rod, wherein the bevel gear a and the bevel gear b are meshed and connected.

[0017] By adopting the above technical solution, the rotation of the fixed transmission rod can drive the stirring rod to rotate.

[0018] Preferably, the fixed transmission rod is provided with three bevel gears a from top to bottom, each bevel gear a meshing with three stirring rods, and the three stirring rods are in a central rotational symmetric structure around the axis of rotation.

[0019] By adopting the above technical solution, the rotation of the rotating shaft can cause the stirring rod to revolve around the fixed transmission rod, thereby allowing the fixed transmission rod to drive the stirring rod to rotate.

[0020] Compared with the prior art, the beneficial effects of this utility model are: by setting up a crystallization tank and a stirring part, when stirring the aluminum fluoride mother liquor, the rotation of the rotating shaft drives the stirring rod, which is rotated on the side of the rotating shaft, to revolve around the fixed transmission rod, thereby allowing the fixed transmission rod to drive the stirring rod to rotate. This results in multiple stirring centers inside the crystallization tank, improving the efficiency of aluminum fluoride crystal precipitation from the aluminum fluoride mother liquor. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the overall top sectional structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the rotating shaft structure of this utility model;

[0026] Figure 6 This is a schematic diagram of the connection structure between the fixed transmission rod and the stirring rod of this utility model.

[0027] The attached figures are labeled as follows: 1. Crystallizer; 101. Inlet pipe; 102. Outlet pipe; 103. Heating coil; 2. Stirring section; 201. Rotating shaft; 202. Transmission gear; 203. Rotating groove a; 204. Rotating groove b; 205. Motor; 206. Power gear disc; 207. Support frame; 208. Fixed transmission rod; 209. Bevel gear a; 210. Stirring rod; 211. Bevel gear b. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1 , Figure 2 and Figure 3This embodiment provides a technical solution: an aluminum fluoride crystal growth device, comprising a crystallization tank 1 and a stirring unit 2.

[0030] An inlet 101 is provided at the top of the crystallization tank 1, and an outlet 102 is provided at the bottom. A heating coil 103 is provided on the outside of the crystallization tank 1, allowing aluminum fluoride mother liquor to be added through the inlet 101 and heated by the heating coil 103. The aluminum fluoride mother liquor is stirred during heating. When heated to 90°-100°, aluminum fluoride crystals precipitate from the mother liquor and are discharged through the outlet 102. Solenoid valves for opening and closing are provided inside the inlet 101 and outlet 102. A stirring unit 2 is located inside the crystallization tank 1. A rotating shaft 201 is vertically rotatable inside the crystallization tank 1, and a fixed transmission rod 208 is vertically inserted and rotated inside the rotating shaft 201. A support frame 207 is bolted to the top of the crystallization tank 1. The bottom of the support frame 207 is welded and fixedly connected to the top of the fixed transmission rod 208. The fixed transmission rod 208 is fixed relative to the crystallization tank 1 and rotates relative to the rotating shaft 201. Several stirring rods 210 are rotatably arranged on the outside of the rotating shaft 201. The stirring rods 210 are meshed with the fixed transmission rod 208. The rotation of the rotating shaft 201 drives the stirring rods 210 to revolve around the fixed transmission rod 208, thereby causing the stirring rods 210 to rotate around their own center. When stirring the aluminum fluoride mother liquor, the rotation of the rotating shaft 201 drives the stirring rods 210, which are rotatably arranged on the side of the rotating shaft 201, to revolve around the fixed transmission rod 208. This allows the fixed transmission rod 208 to drive the stirring rods 210 to rotate, resulting in multiple stirring centers inside the crystallization tank 1, which improves the efficiency of aluminum fluoride crystal precipitation from the aluminum fluoride mother liquor.

[0031] Please see Figure 4 , Figure 5 and Figure 6 This embodiment provides a technical solution: an aluminum fluoride crystal growth device, comprising a crystallization tank 1 and a stirring unit 2.

[0032] A transmission gear 202 is welded around the top outer wall of the rotating shaft 201. A motor 205 is bolted to the top of the crystallization tank 1. A power gear 206 is installed at the output end of the motor 205. The power gear 206 meshes with the transmission gear 202. The power gear 206 and the transmission gear 202 are a type of bevel gear. The meshing of the power gear 206 and the transmission gear 202 converts the lateral rotation of the power gear 206 into the vertical rotation of the rotating shaft 201. The motor 205 is a servo motor. The working principle of the servo motor is based on a closed-loop control system. High-precision motion control is achieved by precisely controlling the position, speed, and torque of the servo motor. The motor 205 can drive the power gear 206 to rotate, thereby driving the rotating shaft 201 to rotate inside the crystallization tank 1. A rotating groove a203 is vertically opened inside the rotating shaft 201. A fixed transmission rod 208 is vertically embedded in the rotating groove a203 and rotatably connected to the rotating shaft 201, allowing the rotating shaft 201 to rotate around the fixed transmission rod a203. 08. A rotating shaft 201 has several rotating grooves b204 on its side, which are connected to rotating groove a203. The stirring rod 210 is embedded in the rotating groove b204 and rotatably connected to the rotating shaft 201, allowing the stirring rod 210 to rotate inside the rotating groove b204. A bevel gear a209 is provided on the side of the fixed transmission rod 208, and a bevel gear b211 is provided at one end of the stirring rod 210. The bevel gear a209 meshes with the bevel gear b211. Next, the rotation of the fixed transmission rod 208 can drive the stirring rod 210 to rotate. The fixed transmission rod 208 has three bevel gears a209 arranged from top to bottom. Each bevel gear a209 is meshed with the three stirring rods 210. The three stirring rods 210 have a central rotational symmetry structure around the axis of the rotation shaft 201. The rotation of the rotation shaft 201 can cause the stirring rods 210 to revolve around the fixed transmission rod 208, thereby causing the fixed transmission rod 208 to drive the stirring rods 210 to rotate.

[0033] Working principle: The device is powered on, and then aluminum fluoride mother liquor is added through the feed port 101. The aluminum fluoride mother liquor is heated by the heating coil 103, which heats the crystallization tank 1. When heated to 90°-100°, aluminum fluoride crystals can be precipitated from the aluminum fluoride mother liquor. Then, the motor 205 drives the power gear disk 206 to rotate, which in turn drives the rotating shaft 201 to rotate inside the crystallization tank 1. This causes the stirring rod 210, which is rotated on the side of the rotating shaft 201, to revolve around the fixed transmission rod 208. The fixed transmission rod 208 rotates relative to the rotating shaft 201, and the fixed transmission rod 208 drives the stirring rod 210 to rotate. This creates multiple stirring centers inside the crystallization tank 1, improving the efficiency of aluminum fluoride crystal precipitation from the aluminum fluoride mother liquor. The precipitated aluminum fluoride crystals can be discharged from the discharge port 102.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An aluminum fluoride crystal growth device, characterized in that, Include: Crystallization tank (1); stirring part (2), the stirring part (2) is arranged inside the crystallization tank (1), the stirring part (2) has rotating shaft (201) arranged inside the crystallization tank (1), the inside of the rotating shaft (201) is arranged with fixed transmission rod (208), the top of the crystallization tank (1) is fixedly provided with support frame (207), the bottom of the support frame (207) is fixedly connected with the top of the fixed transmission rod (208), the outside of the rotating shaft (201) is rotatably provided with a plurality of stirring rods (210), the stirring rod (210) is meshed with the fixed transmission rod (208), the rotating shaft (201) drives the stirring rod (210) to revolve around the fixed transmission rod (208) to drive the stirring rod (210) to rotate.

2. The aluminum fluoride crystal growing apparatus according to claim 1, characterized by: The crystallization tank (1) has a feed pipe (101) opened at the top of the crystallization tank (1), and a discharge pipe (102) is opened at the bottom of the crystallization tank (1), and a heating ring (103) is arranged outside the crystallization tank (1).

3. The aluminum fluoride crystal growing apparatus according to claim 1, characterized by: The stirring part (2) further has a transmission gear (202) arranged on the outside wall of the top of the rotating shaft (201), and the top of the crystallization tank (1) is fixedly provided with a motor (205) through bolts, and the output end of the motor (205) is provided with a power gear (206), and the power gear (206) is meshed with the transmission gear (202).

4. The aluminum fluoride crystal growing apparatus according to claim 1, characterized by: The stirring part (2) further has a rotating groove a (203) opened in the inside of the rotating shaft (201), and the fixed transmission rod (208) is vertically embedded in the rotating groove a (203) and is rotatably connected with the rotating shaft (201).

5. The aluminum fluoride crystal growing apparatus according to claim 1, characterized by: The stirring part (2) further has a rotating groove b (204) opened in the side of the rotating shaft (201), and the rotating groove b (204) is communicated with the rotating groove a (203), and the stirring rod (210) is embedded in the rotating groove b (204) and is rotatably connected with the rotating shaft (201).

6. The aluminum fluoride crystal growing apparatus of claim 1 wherein: The stirring part (2) further has a bevel gear a (209) arranged on the side of the fixed transmission rod (208), and one end of the stirring rod (210) is provided with a bevel gear b (211), and the bevel gear a (209) is meshed with the bevel gear b (211).

7. An aluminum fluoride crystal growing apparatus according to claim 6, characterized by: The fixed transmission rod (208) is sequentially provided with three bevel gears a (209) from top to bottom, each of the bevel gears a (209) is meshed with three stirring rods (210), and the three stirring rods (210) are arranged in a central rotational symmetry structure around the axis of the rotating shaft (201).

Images