Dehydration device for preparing terbium fluoride

Abstract

The invention discloses a dehydration device for preparing terbium fluoride, and belongs to the technical field of fluorination dehydration. Comprising a barrel body, a stirring assembly is arranged in the barrel body, the stirring assembly comprises a plurality of spiral ring plates which are linearly and uniformly distributed and movably installed on the barrel body, the outer edges of the spiral ring plates make contact with the inner wall of the barrel body, and auxiliary shafts are fixedly connected to the middles of the spiral ring plates; a screening plate is fixedly connected between the head end and the outer end of the spiral ring plate, and a plurality of screening holes are evenly formed in the surface of the screening plate. Through the multiple spiral ring plates connected in series through the auxiliary shafts and the screening plates with the screening holes arranged between the plates, stirring of materials is achieved in the rotating process, raw materials can be evenly heated, meanwhile, the materials are continuously dispersed and thrown in the moving process by means of the rotation of the screening plates and the effect of the screening holes, the contact area of the materials and gas is remarkably increased, and the gas-liquid separation efficiency is improved. The dehydration efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of fluorination dehydration technology, and more specifically, to a dehydration apparatus for the preparation of terbium fluoride. Background Technology

[0002] In terbium fluoride preparation, "dehydration" specifically refers to the crucial step of converting hydrated terbium fluoride (TbF3·xH2O) into anhydrous terbium fluoride (TbF3). Its core is far more complex than simple physical drying; it is a multifaceted process involving both physical removal and chemical conversion, conducted under specific fluorinating gases (such as anhydrous HF or NH4HF2) and precise temperature control (typically 300-400°C). The fundamental purpose of this process is twofold: firstly, to completely remove the water of crystallization from the crystal structure; and secondly, and more importantly, to actively suppress the hydrolysis side reaction (TbF3 + H2O → TbOF + 2HF) that is highly susceptible to occur due to the presence of moisture through a continuously supplied active fluorine source. Furthermore, it enables the refluorination and reduction of the trace amounts of terbium fluoride oxide (TbOF) impurities to the desired TbF3.

[0003] If the material is not stirred sufficiently during the fluorination and dehydration process, it will lead to uneven heating of the material and the formation of a temperature gradient inside. At the same time, the solidified state of the accumulation will hinder the full contact between the fluorinated gas and the material, resulting in low heat and mass transfer efficiency. This will slow down the reaction process, increase energy consumption, and may affect the uniformity and purity of the product due to incomplete local reactions.

[0004] For example, the Chinese invention patent (application number: 202322337904.0) discloses a "dehydration device for preparing terbium fluoride," the description of which states: A dehydration device for preparing terbium fluoride includes a substrate, a reaction vessel for preparing terbium fluoride is fixedly mounted on the upper surface of the substrate, a heat-conducting pipe is fixedly mounted inside the reaction vessel, an installation frame is fixedly mounted on the reaction vessel, a filter screen is slidably mounted inside the installation frame, a fixing rod is fixedly mounted on the installation frame, a stirring assembly is slidably mounted on the fixing rod, a fixing assembly is fixedly mounted on the upper surface of the substrate, and a fixing frame is movably mounted on the reaction vessel, one end of the fixing assembly is fixedly mounted on the fixing frame; the above patent can corroborate the defects of the prior art.

[0005] Therefore, we have made improvements to this and proposed a dehydration device for the preparation of terbium fluoride. Summary of the Invention

[0006] In view of the above-mentioned problems in the prior art, the purpose of the present invention is to provide a dehydration apparatus for the preparation of terbium fluoride.

[0007] To solve the above problems, the technical solution adopted by the present invention is as follows: A dehydration device for terbium fluoride preparation includes a cylindrical body. A stirring assembly is disposed within the cylindrical body. The stirring assembly includes several spiral ring plates that are linearly and uniformly distributed and movably installed within the cylindrical body. The outer edges of the spiral ring plates contact the inner wall of the cylindrical body. An auxiliary shaft is fixedly connected to the middle of each spiral ring plate. A sieve plate is fixedly connected between the first and last ends of each spiral ring plate, and the surface of the sieve plate has several uniformly distributed sieve holes. An auxiliary collar is fixedly connected to the rear end of the auxiliary shaft. The auxiliary collar is sleeved with the front end of an adjacent auxiliary shaft. A lower clamping plate is provided on one side of the auxiliary collar, and a limiting plate is provided on the other side. An upper clamping plate is fixedly connected to the front end of each spiral ring plate, and a rotating shaft is fixedly connected to the inner wall of the auxiliary collar at the rear end.

[0008] As a preferred technical solution of this application, a positioning frame is fixedly connected to the rear end of the rotating shaft, a gear disk is fixedly installed on the outer wall of the positioning frame, and the front end of the gear disk is sleeved on the rear end of the cylinder, and an air guiding component is provided at the rear end of the gear disk.

[0009] As a preferred technical solution of this application, an auxiliary gear is meshed with the lower part of the outer wall of the gear disk, and a motor is fixedly connected to the side of the auxiliary gear.

[0010] As a preferred technical solution of this application, an outer cylinder is fixedly connected above the motor, and the outer cylinder is sleeved on the outer wall of the cylinder body. Several heating tubes are fixedly connected to the inner wall of the outer cylinder in a circumferentially even distribution.

[0011] As a preferred technical solution of this application, the air guiding assembly includes a front cover plate movably installed at the front end of the cylinder, a partition plate fixedly connected to the middle of the inner wall of the front cover plate, and the partition plate being movably connected to the lower clamping plate, an exhaust pipe fixedly connected to the front of the front cover plate, and a discharge assembly provided at the rear end of the front cover plate.

[0012] As a preferred technical solution of this application, a rear cover plate is sleeved on the rear end of the gear disk, a baffle plate is fixedly connected to the middle of the inner wall of the rear cover plate, and a tee pipe is fixedly connected to the rear end of the rear cover plate.

[0013] As a preferred technical solution of this application, the discharge assembly includes a front arc-breaking ring fixedly installed on the front cover plate, a rear arc-breaking ring fixedly connected to the front end of the outer wall of the cylinder, and the notches of the front arc-breaking ring and the rear arc-breaking ring interlock with each other. The outer wall of the outer cylinder is symmetrically and evenly distributed with two side shafts fixedly connected. A positioning arc frame is movably connected between the two side shafts. A base plate is fixedly connected to the bottom end of the positioning arc frame. An oblique arc frame is fixedly connected to the upper surface of the base plate on the side near the front cover plate.

[0014] As a preferred technical solution of this application, the rear end of the rear cover is provided with a second rotating frame, and the other end of the second rotating frame is movably connected to a telescopic rod.

[0015] As a preferred technical solution of this application, the other end of the telescopic rod is movably connected to a first rotating frame, and the other end of the first rotating frame is mounted on the upper surface of the base plate.

[0016] As a preferred technical solution of this application, the front cover plate has two fixed brackets that are symmetrically and evenly distributed at the front end of the outer wall, and the bottom ends of the two fixed brackets are fixedly installed on the upper surface of the base plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) The present invention uses multiple spiral ring plates connected in series by auxiliary shafts and sets up a sieve plate with sieve holes between the plates to stir the material during rotation, so that the raw material can be heated evenly. At the same time, with the help of the rotation of the sieve plate and the action of the sieve holes, the material is continuously dispersed and scattered during movement, which significantly increases its contact area with fluorinated gas, thereby enhancing the mass transfer and reaction effect, making it have both stirring and dispersing functions, effectively improving the efficiency and uniformity of the dehydration fluorination process. Attached Figure Description

[0018] Figure 1 Schematic diagram of the overall structure of the dehydration apparatus for terbium fluoride preparation provided in this application Figure 1 ; Figure 2 Schematic diagram of the overall structure of the dehydration apparatus for terbium fluoride preparation provided in this application Figure 2 ; Figure 3 This is a schematic diagram of the overall structure of the dehydration device for terbium fluoride preparation provided in this application, showing the discharge state. Figure 4 A partial structural diagram of the dehydration apparatus for terbium fluoride preparation provided in this application. Figure 1 ; Figure 5 A partial structural diagram of the dehydration apparatus for terbium fluoride preparation provided in this application. Figure 2 ; Figure 6 A partial structural diagram of the dehydration apparatus for terbium fluoride preparation provided in this application. Figure 3 ; Figure 7 A partial structural diagram of the dehydration apparatus for terbium fluoride preparation provided in this application. Figure 4 ; Figure 8 A partial schematic diagram of the stirring assembly in the dehydration apparatus for terbium fluoride preparation provided in this application. Figure 1 ; Figure 9 A partial schematic diagram of the stirring assembly in the dehydration apparatus for terbium fluoride preparation provided in this application. Figure 2 ; Figure 10A partial schematic diagram of the stirring assembly in the dehydration apparatus for terbium fluoride preparation provided in this application. Figure 3 ; In the diagram: 1. Cylinder body; 2. Mixing assembly; 201. Outer cylinder; 202. Gear disc; 203. Feed pipe; 204. Motor; 205. Auxiliary gear; 206. Rotating shaft; 207. Spiral ring plate; 208. Screening plate; 209. Limiting plate; 210. Auxiliary collar; 211. Lower clamping plate; 212. Upper clamping plate; 213. Heating tube; 214. Positioning frame; 215. Auxiliary shaft; 3. Air guide assembly; 301. Rear cover plate; 302. T-pipe; 303. Front cover plate; 304. Exhaust pipe; 305. Mounting bracket; 306. Partition plate; 307. Barrier plate; 4. Base plate; 5. Discharge assembly; 501. Rear arc break ring; 502. Front arc break ring; 503. Side shaft; 504. Positioning arc frame; 505. First rotating frame; 506. Telescopic rod; 507. Second rotating frame; 508. Inclined arc frame; 6. Support frame; 7. Base frame. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0020] As described in the background art, in the process of fluorination and dehydration of materials, insufficient stirring will lead to uneven heating of the materials and obstruction of gas contact, thereby reducing the heat and mass transfer efficiency, resulting in slow reaction, increased energy consumption, and affecting the uniformity and purity of the product.

[0021] To address this technical problem, the present invention provides a dehydration apparatus for the preparation of terbium fluoride, which is applied in the field of fluorination dehydration technology.

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Example

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7, Figure 8 , Figure 9 and Figure 10 A dehydration device for terbium fluoride preparation includes a cylindrical body 1, within which a stirring assembly 2 is provided. The stirring assembly 2 includes a plurality of spiral ring plates 207 linearly and uniformly distributed and movably installed on the cylindrical body 1, with the outer edges of the spiral ring plates 207 contacting the inner wall of the cylindrical body 1. An auxiliary shaft 215 is fixedly connected to the middle of the spiral ring plates 207. A sieve plate 208 is fixedly connected between the first and last ends of the spiral ring plates 207, and the surface of the sieve plate 208 is uniformly provided with a plurality of sieve holes. The auxiliary shaft 215... 5. An auxiliary collar 210 is fixedly connected to the rear end. The auxiliary collar 210 is sleeved with the front end of the adjacent auxiliary shaft 215. A lower retaining plate 211 is provided on one side of the auxiliary collar 210, and a limiting plate 209 is provided on the other side. An upper retaining plate 212 is fixedly connected to the front end of the spiral ring plate 207. A rotating shaft 206 is fixedly connected to the inner wall of the auxiliary collar 210 at the tail end. The rotating shaft 206 is driven to rotate in the forward direction, and the auxiliary shaft 215 at the tail end is synchronously driven to rotate, so that the auxiliary shaft 215 at the tail end rotates. The spiral ring plate 207 on the outer wall follows the movement, rotating around the central axis 206 in the cylinder 1. The auxiliary collar 210 at the front end of the auxiliary shaft 215 in this section is driven, and the upper clamping plate 212 on one side of the spiral ring plate 207 is rotated 180 degrees, then engages with the lower clamping plate 211 at the tail end of the previous spiral ring plate 207. The previous spiral ring plate 207 is then driven, and so on, the spiral ring plates 207 connected by the auxiliary collar 210 in the cylinder 1 are sequentially driven to rotate, thus engaging the auxiliary ring plate 207 at the front end of the cylinder 1. The raw material in the cylinder 1 is stirred. At the same time, the sieve plate 208 set between the head and tail of the spiral ring plate 207 is driven by the spiral ring plate 207 to rotate on the auxiliary shaft 215, so as to move the raw material located below the inner wall of the cylinder 1. During the stirring process, the raw material carried by the sieve plate 208 passes through the mesh on its surface and falls back into the cylinder 1 in a dispersed state. At this time, the fluorinated gas comes into contact with it, thereby increasing the contact area between the fluorinated gas and the raw material.

[0024] Multiple spiral ring plates 207 connected in series by auxiliary shafts 215, with sieve plates 208 with sieve holes installed between the plates, are used to stir the material during rotation, so that the raw materials can be heated evenly. At the same time, with the help of the rotation of the sieve plate 208 and the action of the sieve holes, the material is continuously dispersed in motion, which significantly increases its contact area with fluorinated gas, thereby enhancing mass transfer and reaction effects. The overall structure is reasonably linked and has both stirring and dispersing functions, effectively improving the efficiency and uniformity of the dehydration fluorination process.

[0025] Furthermore, such as Figure 4 , Figure 6 and Figure 8As shown, a positioning frame 214 is fixedly connected to the rear end of the rotating shaft 206. A gear disk 202 is fixedly installed on the outer wall of the positioning frame 214, and the front end of the gear disk 202 is sleeved on the rear end of the cylinder 1. An air guide assembly 3 is provided at the rear end of the gear disk 202. An auxiliary gear 205 is meshed with the lower part of the outer wall of the gear disk 202. A motor 204 is fixedly connected to the side of the auxiliary gear 205. The motor 204 drives the auxiliary gear 205 to rotate, and the gear disk 202 meshing with it rotates at the rear end of the cylinder 1, providing power for the rotation of the internally connected spiral ring plates 207.

[0026] Furthermore, such as Figure 3 , Figure 4 and Figure 7 As shown, an outer cylinder 201 is fixedly connected above the motor 204, and the outer cylinder 201 is sleeved on the outer wall of the cylinder 1. The heating tube 213 is wrapped by the outer cylinder 201 to prevent heat loss. Several heating tubes 213 are fixedly connected in a circumferentially even distribution on the inner wall of the outer cylinder 201. The heating tubes 213 provide heat during the fluorination process. A feed pipe 203 is provided at the front end of the outer wall of the cylinder 1. The raw material is introduced into the cylinder 1 through the feed pipe 203 for processing. Example

[0027] The dehydration apparatus for terbium fluoride preparation provided in Example 1 has been further optimized, specifically, as follows: Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown, the gas guiding assembly 3 includes a front cover plate 303 movably installed at the front end of the cylinder 1. A partition plate 306 is fixedly connected to the middle of the inner wall of the front cover plate 303, and the partition plate 306 is movably connected to the lower clamping plate 211. An exhaust pipe 304 is fixedly connected to the front of the front cover plate 303, and a discharge assembly 5 is provided at the rear end of the front cover plate 303. During the dehydration and fluorination processes, nitrogen and hydrogen fluoride are respectively introduced into the cylinder 1 to process the raw materials. The gas is introduced through the three-way pipe 302, passes through the baffle plate 307, and enters the cylinder 1. The interlocking spiral ring plates 207 guide the gas entering the cylinder 1 to move in a spiral flow channel, increasing the time the gas stays in the cylinder 1. When the gas moves to the front cover plate 303, it passes through the partition plate 306. Since the gas carries some raw material dust when passing through the raw material, the partition plate 306 blocks it. During the movement of the front spiral ring plate 207, the front lower clamping plate 211 scrapes the surface of the partition plate 306 to clean the raw material particles attached to the surface of the partition plate 306.

[0028] By setting a partition plate 306 inside the front cover plate 303 and combining it with the spiral flow channel formed by the spiral ring plate 207, the introduced nitrogen or hydrogen fluoride gas flows along the spiral path, effectively extending the residence time of the gas in the cylinder 1 and improving the contact efficiency between the gas and the material. At the same time, the partition plate 306 can effectively block and collect the raw material dust carried by the gas, while the lower clamping plate 211 at the front end of the spiral ring plate 207 can continuously scrape off the particles attached to the partition plate 306, realizing automatic dust cleaning, preventing blockage, and ensuring smooth exhaust and continuous and stable operation of the system.

[0029] Furthermore, such as Figure 5 and Figure 6 As shown, a rear cover plate 301 is sleeved at the rear end of the gear disk 202. A baffle plate 307 is fixedly connected to the middle of the inner wall of the rear cover plate 301 to prevent raw materials from entering the gas chamber at the tail end and to obstruct the entry of gas. A three-way pipe 302 is fixedly connected to the rear end of the rear cover plate 301 to connect nitrogen and hydrogen fluoride, so as to facilitate switching between fluorination and dehydration functions. Example

[0030] The dehydration apparatus for terbium fluoride preparation provided in Examples 1 and 2 has been further optimized, specifically, as follows: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the discharge assembly 5 includes a front arc-breaking ring 502 fixedly installed on the front cover plate 303, a rear arc-breaking ring 501 fixedly connected to the front end of the outer wall of the cylinder 1, and the notches of the front arc-breaking ring 502 and the rear arc-breaking ring 501 interlocking with each other. Two side shafts 503 are fixedly connected symmetrically and evenly distributed on the outer wall of the outer cylinder 201. A positioning arc frame 504 is movably connected between the two side shafts 503. A base plate 4 is fixedly connected to the bottom end of the positioning arc frame 504. An oblique arc frame 508 is fixedly connected to the upper surface of the base plate 4 near the front cover plate 303. When the fluorination or dehydration operation is completed, the telescopic rod 506 is activated. With the cooperation of the first rotating frame 505 and the second rotating frame 507, the rear cover plate 301 at the rear end of the cylinder 1 is pushed, so that the cylinder 1 rotates around the side shaft 503 connected to the positioning arc frame 504 as the central axis. The cylinder opening of the cylinder 1 tilts downward, and the rear broken arc ring 501 at the front end of the cylinder 1 is separated from the rear broken arc ring 501 of the front cover plate 303. The lower part of the cylinder 1 is above the arc surface of the inclined arc frame 508. At this time, the spiral ring plate 207 rotates in the opposite direction, and the processed raw material is discharged from the cylinder 1.

[0031] Through the engagement and disengagement design of the front arc-breaking ring 502 and the rear arc-breaking ring 501, combined with the overall tilting of the cylinder 1 around the side shaft 503 and the reverse rotation of the spiral ring plate 207, the rapid discharge of processed materials is achieved. When the cylinder 1 tilts, the material is guided out along the arc surface of the inclined arc frame 508 under the force of gravity and the reverse spiral, effectively reducing residue and blockage. The engagement and disengagement structure of the arc-breaking rings ensures sealing during operation and smooth discharge, resulting in thorough unloading and simple operation, thus improving production efficiency and equipment applicability.

[0032] Furthermore, such as Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown, a second rotating frame 507 is provided at the rear end of the rear cover plate 301. A telescopic rod 506 is movably connected to the other end of the second rotating frame 507. A first rotating frame 505 is movably connected to the other end of the telescopic rod 506. The other end of the first rotating frame 505 is mounted on the upper surface of the base plate 4. The telescopic rod 506 is extended and retracted. With the cooperation of the first rotating frame 505 and the second rotating frame 507, the tilt state of the cylinder 1 is adjusted.

[0033] Furthermore, such as Figure 2 and Figure 3 As shown, two fixed brackets 305 are symmetrically and evenly distributed and fixedly connected to the front end of the outer wall of the front cover plate 303. The bottom ends of the two fixed brackets 305 are fixedly installed on the upper surface of the base plate 4. A base frame 7 is fixedly connected to the lower surface of the base plate 4. Supports 6 are evenly distributed and fixedly connected to the lower surface of the base frame 7. The base frame 7 and the support 6 cooperate to provide a stable base structure for the cylinder 1.

[0034] The dehydration apparatus for terbium fluoride preparation provided by this invention is used as follows: Working principle: The staff places the overall structure in a suitable position using the bracket 6. The three-way pipe 302 located at the rear cover plate 301 is connected to the nitrogen pipe at one end and the hydrogen fluoride pipe at the other end. The exhaust pipe 304 located on the surface of the front cover plate 303 is connected to the recovery equipment to recover nitrogen and hydrogen fluoride. Introduction: Open the feed pipe 203 to introduce the raw material into the cylinder 1. Start the motor 204 to drive the auxiliary gear 205 to rotate, causing the meshing gear disk 202 to rotate accordingly, thereby driving the rotating shaft 206. The auxiliary shaft 215 connected to the front end of the rotating shaft 206 through the auxiliary collar 210 is driven, and the spiral ring plate 207 on the outer wall of the auxiliary shaft 215 rotates synchronously. Since adjacent auxiliary shafts 215 are connected in series through the auxiliary collar 210, after the spiral ring plate 207 rotates in the opposite direction, its front end lower clamping plate 211 rotates 180 degrees around the auxiliary shaft 215 and contacts the limiting plate 209. At this time, the screening plates 208 erected between the two spiral ring plates 207 are staggered on both sides of the auxiliary shaft 215 to reduce screening operations. After continued rotation, the limiting plate 209 drives the connected auxiliary collar 210 to rotate, thereby driving the section of spiral ring plate 207 to rotate inside the cylinder 1. In this way, several spiral ring plates 207 in the cylinder 1 are spliced ​​together to form different spacings, such as... Figure 10 After the assembly is completed, the rotating spiral ring plate 207 performs preliminary stirring of the raw materials, and at the same time, the heating tube 213 is activated to heat the raw materials in the cylinder 1. Inertial dehydration: Open the nitrogen pipe in the three-way pipe 302 to introduce dry nitrogen into the cylinder 1. At this time, the motor 204 rotates in the forward direction, driving the auxiliary gear 205, gear disk 202, and rotating shaft 206, causing the auxiliary shaft 215 at the tail end to rotate synchronously. The spiral ring plate 207 on the outer wall of the auxiliary shaft 215 moves accordingly. The spiral ring plate 207 rotates around the rotating shaft 206 as the central axis, and its front auxiliary collar 210 is driven. The upper clamping plate 212 on one side of the spiral ring plate 207 rotates 180 degrees and then splices with the lower clamping plate 211 at the tail end of the previous spiral ring plate 207, thereby driving all the spiral ring plates 207 to rotate in sequence. During the stirring process, the sieve plate 208 set between the head and tail of the spiral ring plate 207 rotates with the auxiliary shaft 215, stirring the raw material below the inner wall of the cylinder 1, so that the raw material passes through the sieve holes and falls in a dispersed state. Figure 9 Meanwhile, the spiral ring plates 207 are spliced ​​to form a spiral flow channel. Nitrogen gas comes into contact with the heated raw material along the spiral flow channel, carrying the evaporated water vapor, and enters the exhaust pipe 304 through the partition plate 306 at the front cover plate 303. Fluorination and dehydration: After inert dehydration for a period of time, the hydrogen fluoride pipeline in the three-way pipe 302 is opened to introduce hydrogen fluoride into the cylinder 1, so that a mixture of nitrogen and hydrogen fluoride is formed in the cylinder 1. Then the stirring and gas contact process in the inert dehydration step is repeated. Cleaning: Nitrogen and hydrogen fluoride gases move to the front cover plate 303 and pass through the partition plate 306. Since the gases carry some raw material dust as they pass through the raw materials, the partition plate 306 blocks it. During the movement of the front spiral ring plate 207, the lower clamping plate 211 at the front scrapes the surface of the partition plate 306 to clean the raw material particles attached to the surface of the partition plate 306. The gas entering the front cover plate 303 is discharged through the exhaust pipe 304. Discharge: The telescopic rod 506 is activated. With the cooperation of the first rotating frame 505 and the second rotating frame 507, the rear cover plate 301 at the rear end of the cylinder 1 is pushed, so that the cylinder 1 rotates around the side shaft 503 connected to the positioning arc frame 504 as the central axis. The cylinder opening of the cylinder 1 tilts downward, and the rear broken arc ring 501 at the front end of the cylinder 1 is disconnected from the rear broken arc ring 501 of the front cover plate 303. The lower part of the cylinder 1 is above the arc surface of the inclined arc frame 508. At this time, the spiral ring plate 207 rotates in the opposite direction, and the processed raw material is discharged from the cylinder 1.

[0035] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention 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 specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A dehydration apparatus for the preparation of terbium fluoride, characterized in that, The system includes a cylindrical body (1), within which a stirring assembly (2) is provided. The stirring assembly (2) includes several spiral ring plates (207) that are linearly and uniformly distributed and movably installed on the cylindrical body (1). The outer edge of the spiral ring plates (207) contacts the inner wall of the cylindrical body (1). An auxiliary shaft (215) is fixedly connected to the middle of each spiral ring plate (207). A sieve plate (208) is fixedly connected between the first and last ends of each spiral ring plate (207), and the surface of the sieve plate (208) is uniformly shaped. The auxiliary shaft (215) has several sieve holes. An auxiliary collar (210) is fixedly connected to the rear end of the auxiliary shaft (215). The auxiliary collar (210) is sleeved with the front end of the adjacent auxiliary shaft (215). A lower clamping plate (211) is provided on one side of the auxiliary collar (210), and a limiting plate (209) is provided on the other side of the auxiliary collar (210). An upper clamping plate (212) is fixedly connected to the front end of the spiral ring plate (207), and a rotating shaft (206) is fixedly connected to the inner wall of the auxiliary collar (210) at the tail end.

2. The dehydration apparatus for preparing terbium fluoride according to claim 1, characterized in that, The rear end of the rotating shaft (206) is fixedly connected to a positioning frame (214), and a gear disk (202) is fixedly installed on the outer wall of the positioning frame (214). The front end of the gear disk (202) is sleeved on the rear end of the cylinder (1), and the rear end of the gear disk (202) is provided with an air guide assembly (3).

3. The dehydration apparatus for preparing terbium fluoride according to claim 2, characterized in that, An auxiliary gear (205) is meshed with the lower outer wall of the gear disk (202), and a motor (204) is fixedly connected to the side of the auxiliary gear (205).

4. The dehydration apparatus for preparing terbium fluoride according to claim 3, characterized in that, An outer cylinder (201) is fixedly connected above the motor (204), and the outer cylinder (201) is sleeved on the outer wall of the cylinder (1). Several heating tubes (213) are fixedly connected to the inner wall of the outer cylinder (201) in a circumferentially even distribution.

5. The dehydration apparatus for terbium fluoride preparation according to claim 4, characterized in that, The air guiding assembly (3) includes a front cover plate (303) movably installed at the front end of the cylinder (1). A partition plate (306) is fixedly connected to the middle of the inner wall of the front cover plate (303), and the partition plate (306) is movably connected to the lower clamping plate (211). An exhaust pipe (304) is fixedly connected to the front of the front cover plate (303), and a discharge assembly (5) is provided at the rear end of the front cover plate (303).

6. The dehydration apparatus for preparing terbium fluoride according to claim 5, characterized in that, The rear end of the gear disk (202) is fitted with a rear cover plate (301), a baffle plate (307) is fixedly connected to the middle of the inner wall of the rear cover plate (301), and a three-way pipe (302) is fixedly connected to the rear end of the rear cover plate (301).

7. The dehydration apparatus for preparing terbium fluoride according to claim 5, characterized in that, The discharge assembly (5) includes a front arc break ring (502) fixedly installed on the front cover plate (303), a rear arc break ring (501) fixedly connected to the front end of the outer wall of the cylinder (1), and the notches of the front arc break ring (502) and the rear arc break ring (501) mesh with each other. The outer wall of the outer cylinder (201) is symmetrically and evenly distributed with two side shafts (503) fixedly connected. A positioning arc frame (504) is movably connected between the two side shafts (503), and a bottom plate (4) is fixedly connected to the bottom end of the positioning arc frame (504).

8. The dehydration apparatus for preparing terbium fluoride according to claim 6, characterized in that, The rear cover plate (301) is provided with a second rotating frame (507) at its rear end, and a telescopic rod (506) is movably connected to the other end of the second rotating frame (507).

9. The dehydration apparatus for preparing terbium fluoride according to claim 8, characterized in that, The other end of the telescopic rod (506) is movably connected to the first rotating frame (505), and the other end of the first rotating frame (505) is mounted on the upper surface of the base plate (4).

10. The dehydration apparatus for preparing terbium fluoride according to claim 7, characterized in that, The front cover plate (303) has two fixed brackets (305) that are symmetrically and evenly distributed at the front end of its outer wall. The bottom ends of the two fixed brackets (305) are fixedly installed on the upper surface of the base plate (4).

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