阅读说明：本技术 一种焰熔法钛酸锶单晶体生长装置 (Flame fusion method strontium titanate single crystal growth device ) 是由 董颖男 李珊珊 张东 唐美玲 唐坚 牛微 赵韦仑 王黎明 毕孝国 于 2021-07-16 设计创作，主要内容包括：本发明公开了一种焰熔法钛酸锶单晶体生长装置,固定架一端固定安装有热熔管,热熔管侧端对称焊接有固定卡接板,固定卡接板一端等距卡接有若干个热熔枪,热熔枪进气端与输气管出气端固定连接,热熔枪贯穿安装于热熔管一端,热熔管内侧焊接有斜挡板,热熔管侧端底部贯穿有氧气管,通过输气管提供氢气和氧气管提供氧气,同时由加速风扇带动热熔管内部的气流进行流动,气体自下而上的流动,从而带动氧气流动到热熔枪位置处,从而保证热熔枪的热焰的稳定性,并且在气体流动时,因气体流动方向与粉末原料的掉落方向相反,从而可以对原料进行阻挡,减缓原料下落的速度,增加远离与热焰接触的时间。(The invention discloses a flame fusion method strontium titanate monocrystal growth device, one end of a fixing frame is fixedly provided with a hot melting pipe, the side end of the hot melting pipe is symmetrically welded with a fixing clamping plate, one end of the fixing clamping plate is clamped with a plurality of hot melting guns at equal intervals, the air inlet end of each hot melting gun is fixedly connected with the air outlet end of an air conveying pipe, each hot melting gun is arranged at one end of the hot melting pipe in a penetrating way, the inner side of each hot melting pipe is welded with an inclined baffle, the bottom of the side end of each hot melting pipe is penetrated with an oxygen pipe, hydrogen and oxygen are provided by the air conveying pipes, an accelerating fan drives airflow in the hot melting pipe to flow, the air flows from bottom to top, so that the oxygen is driven to flow to the position of the hot melting gun, the stability of hot flame of the hot melting guns is ensured, and when the air flows, the flowing direction of the air is opposite to the falling direction of a powder raw material, so that the raw material can be blocked, and the falling speed of the raw material is slowed down, increasing the time away from contact with the hot flame.)

1. The utility model provides a flame melting method strontium titanate single crystal growth apparatus, includes mount (1), its characterized in that: one side of the fixing frame (1) is provided with a hot melting assembly (2), and the hot melting assembly (2) comprises a hot melting pipe (201), a fixing clamping plate (202), a hot melting gun (203), an air conveying pipe (204), an inclined baffle (205), an oxygen pipe (206), a sealing fixing plate (207), an air outlet (208), an accelerating fan (209), a limiting arc plate (210), a sealing arc plate (211), a clamping limiting groove (212), a filter plate (213), a discharging hopper (214), a burette (215) and a first limiting valve (216);

one end of the fixing frame (1) is fixedly provided with a hot melting pipe (201), the side end of the hot melting pipe (201) is symmetrically welded with a fixing clamping plate (202), one end of the fixing clamping plate (202) is clamped with a plurality of hot melting guns (203) at equal intervals, the air inlet ends of the hot melting guns (203) are fixedly connected with the air outlet end of the air conveying pipe (204), the hot melting guns (203) are arranged at one end of the hot melting pipe (201) in a penetrating mode, and a plurality of inclined baffles (205) are welded at equal intervals at positions, close to the hot melting guns (203), of the inner side of the hot melting pipe (201);

an oxygen pipe (206) penetrates through the bottom of the side end of the hot melting pipe (201), a sealing fixing plate (207) is symmetrically welded at the top end of the hot melting pipe (201), an exhaust port (208) is formed in the top end of the sealing fixing plate (207), and an accelerating fan (209) is embedded and mounted on the inner side of the exhaust port (208);

the welding of hot melt pipe (201) bottom has spacing arc board (210), spacing arc board (210) one end articulates there is sealed arc board (211), joint spacing groove (212) have all been seted up to spacing arc board (210) and sealed arc board (211) inboard bottom, joint spacing groove (212) inboard embedding joint has filter (213), the welding of spacing arc board (210) bottom has hopper (214) down, hopper (214) bottom has run through buret (215) down, first restriction valve (216) are installed in buret (215) one end embedding.

2. The growth device of a strontium titanate single crystal by a flame fusion method according to claim 1, wherein the air inlet end of the air delivery pipe (204) and the air inlet end of the oxygen pipe (206) are both fixedly connected with the air outlet end of an external air supply tank, the input end of the accelerating fan (209) is electrically connected with the output end of an external controller, and the input end of the external controller is electrically connected with the output end of an external power supply.

3. The apparatus for growing a single crystal of strontium titanate according to claim 1, wherein the maximum rotation angle of the sealing arc plate (211) is 180 degrees, and the diameter of the top end of the lower hopper (214) is equal to the outer diameter of the limiting arc plate (210).

4. The growth device of a strontium titanate single crystal by a flame fusion method according to claim 1, wherein a screening preheating assembly (3) is installed on one side of the sealing fixing plate (207), and the screening preheating assembly (3) comprises a feeding pipe (301), a filter barrel (302), a discharging pipe (303), a conveying pipe (304), a fixing and supporting ring (305), a filter net cage (306), a vibrating spring (307), a screening barrel (308), an air inlet hole (309), an intercepting net ring (310), a storage net cage (311), a vibrating motor (312), an air outlet pipe (313) and a second limiting valve (314);

the utility model discloses a filter screen, including sealed fixed plate (207), inlet pipe (301) run through on the top of inlet pipe (301), run through and install in filter vat (302) bottom middle part, sealed fixed plate (207) top corresponds gas vent (208) position department and runs through discharge pipe (303), discharge pipe (303) one end and conveyer pipe (304) one end fixed connection, the welding of filter vat (302) inboard bottom has fixed support ring (305), fixed support ring (305) top fixed mounting has filter screen cage (306), adapter and conveyer pipe (304) air outlet fixed connection are passed through on filter screen cage (306) top, the welding of filter vat (302) inboard near filter screen cage (306) position department has vibrations spring (307), vibrations spring (307) one end and filter cylinder (308) side welded connection, a plurality of inlet port (309) have been seted up to filter cylinder (308) side equidistance bottom, the utility model discloses a screening drum, including a screening drum (308), inlet port (309), storage cylinder mould (311), storage cylinder mould (313), inlet pipe (301) one end embedding is installed second restriction valve (314), screening drum (308) inboard corresponds inlet port (309) position department fixed mounting has interception net ring (310), storage cylinder mould (311) have been placed to screening drum (308) inboard, screening drum (308) bottom is connected with vibrating motor (312) through the motor cabinet, storage cylinder mould (311) top is run through has outlet duct (313).

5. The growth device of a single-crystal strontium titanate according to claim 4, wherein the filter barrel (302) is fixedly connected with the sealing and fixing plate (207) through a connecting and mounting frame, and the input end of the vibration motor (312) is electrically connected with the output end of an external controller.

6. A growth apparatus for single-crystal strontium titanate by flame fusion method according to claim 4, characterized in that the storage cylinder mould (311) is connected with the interception cylinder ring (310) in a clamping way, and the top end of the storage cylinder mould (311) is welded with a protective cover plate.

7. The growth device of the single-crystal strontium titanate by the flame fusion method according to claim 1, characterized in that a crystallization assembly (4) is installed on one side of the fixing frame (1), and the crystallization assembly (4) comprises a connecting placing frame (401), a linkage disc (402), a fixed placing block (403), an installation clamping and connecting hole (404), a crystallization mold (405), a driven pulley (406), a transmission motor (407), a driving pulley (408) and a transmission belt (409);

the welding of mount (1) one end has connection rack (401), it is connected with linkage disk (402) to connect rack (401) top rotation, linkage disk (402) top equidistance welding has fixed the placing piece (403) of a plurality of, fixed placing piece (403) top has seted up installation joint hole (404), installation joint hole (404) inboard embedding joint has crystallization mould (405), linkage disk (402) bottom middle part fixedly connected with driven pulley (406), it is connected with driving motor (407) through the motor cabinet to connect rack (401) bottom one side, driving motor (407) output shaft and driving pulley (408) fixed connection, driven pulley (406) and driving pulley (408) all are connected with driving belt (409) transmission.

8. The apparatus for growing single crystals of strontium titanate according to claim 7, wherein the diameter of the driven pulley (406) is equal to that of the driving pulley (408), and the input end of the transmission motor (407) is electrically connected to the output end of the external controller.

9. The growth device of a single crystal of strontium titanate by flame fusion method according to claim 7, characterized in that a cooling module (5) is installed on one side of the fixed placing block (403), and the cooling module (5) comprises a water delivery pipe (501), a water inlet pipe (502), a third limiting valve (503) and a water outlet pipe (504);

the water conveying pipe (501) penetrates through the bottom of the side end of the fixed placing block (403), the water inlet ends of the conveying pipes (501) are fixedly connected with the water outlet end of the water inlet pipe (502), a third limiting valve (503) is embedded into one end of each conveying pipe (501), and a water discharging pipe (504) penetrates through the top of the side end of the fixed placing block (403).

10. The growth apparatus for single-crystal strontium titanate according to claim 9, wherein the inner diameter of the water inlet pipe (502) is larger than the inner diameter of the water delivery pipe (501), and the inner diameter of the water delivery pipe (501) is equal to the inner diameter of the water outlet pipe (504).

Technical Field

The invention relates to the technical field of crystal manufacturing, in particular to a device for growing a strontium titanate single crystal by a flame fusion method.

Background

Strontium titanate crystal, chemical formula SrTiO3, belongs to cubic system, unit cell parameter a is 0.3905 nm, melting point is 2080 ℃, density is 5.175 g/cm 3, Mohs hardness is 6, mechanical property is good, it is a high refractive index material and high temperature superconducting substrate material, flame fusion method is also called Vernaer leaf method, one of the methods of preparing single crystal from melt is artificial, the fine powder of the prepared raw material leaks from the pipe orifice, sprays it in oxyhydrogen flame to melt, then condenses and crystallizes on the top layer of seed crystal or pear-shaped single crystal.

However, when strontium titanate crystals are manufactured at present, because powder is directly put into the crystals, the situation of insufficient hot melting caused by too much falling or insufficient hot melting temperature in a short time occurs, the crystals contain powder in a crystallization product, the refractive index of the strontium titanate crystals is affected, and the situation of secondary dissolution easily occurs when the internal powder is used in a high-temperature environment, and the situation of crystal damage occurs.

Disclosure of Invention

The invention provides a flame fusion method strontium titanate single crystal growth device, which can effectively solve the problems that when strontium titanate crystals are manufactured at present, because powder is directly input, the situation of insufficient hot melting caused by excessive falling or insufficient hot melting temperature in a short time occurs, the crystalline product contains the powder, the refractive index of the strontium titanate crystals is influenced, and the situation of secondary dissolution is easily caused when the internal powder is used in a high-temperature environment, so that the crystal is damaged.

In order to achieve the purpose, the invention provides the following technical scheme: a flame fusion method strontium titanate monocrystal growth device comprises a fixing frame, wherein a hot melting assembly is arranged on one side of the fixing frame, and the hot melting assembly comprises a hot melting pipe, a fixing clamping plate, a hot melting gun, a gas conveying pipe, an inclined baffle, an oxygen pipe, a sealing fixing plate, an exhaust port, an accelerating fan, a limiting arc plate, a sealing arc plate, a clamping limiting groove, a filter plate, a discharging hopper, a burette and a first limiting valve;

one end of the fixing frame is fixedly provided with a hot melting pipe, the side end of the hot melting pipe is symmetrically welded with a fixing clamping plate, one end of the fixing clamping plate is clamped with a plurality of hot melting guns at equal intervals, the air inlet end of each hot melting gun is fixedly connected with the air outlet end of the air delivery pipe, the hot melting guns are penetratingly arranged at one end of the hot melting pipe, and a plurality of inclined baffles are welded at the positions, close to the positions of the hot melting guns, of the inner side of the hot melting pipe at equal intervals;

an oxygen pipe penetrates through the bottom of the side end of the hot melting pipe, a sealing fixing plate is symmetrically welded at the top end of the hot melting pipe, an exhaust port is formed in the top end of the sealing fixing plate, and an accelerating fan is embedded and mounted on the inner side of the exhaust port;

the bottom welding of hot melt pipe has spacing arc board, spacing arc board one end articulates there is sealed arc board, the joint spacing groove has all been seted up to spacing arc board and the inboard bottom of sealed arc board, the inboard embedding joint of joint spacing groove has the filter, spacing arc board bottom welding has down the hopper, the hopper bottom runs through down has the buret, first restriction valve is installed in buret one end embedding.

Preferably, the gas inlet end of the gas pipe and the gas inlet end of the oxygen pipe are both fixedly connected with the gas outlet end of the external gas supply tank, the input end of the acceleration fan is electrically connected with the output end of the external controller, and the input end of the external controller is electrically connected with the output end of the external power supply.

Preferably, the maximum rotation angle of the sealing arc plate is 180 degrees, and the diameter of the top end of the discharging hopper is equal to the outer diameter of the limiting arc plate.

Preferably, one side of the sealing fixing plate is provided with a screening preheating assembly, and the screening preheating assembly comprises a feeding pipe, a filtering barrel, a discharging pipe, a conveying pipe, a fixed support ring, a filtering net cage, a vibrating spring, a screening barrel, an air inlet hole, an intercepting net ring, a storage net cage, a vibrating motor, an air outlet pipe and a second limiting valve;

the filter screen is characterized in that an inlet pipe penetrates through the top end of the sealing fixed plate, the top end of the inlet pipe is installed in the middle of the bottom end of the filter barrel in a penetrating manner, a discharge pipe penetrates through the top end of the sealing fixed plate corresponding to an air outlet position, one end of the exhaust pipe is fixedly connected with one end of the conveying pipe, a fixed support ring is welded at the bottom end of the inner side of the filter barrel, a filter screen cage is fixedly installed at the top end of the fixed support ring, the top end of the filter screen cage is fixedly connected with the air outlet end of the conveying pipe through an adapter, a vibration spring is welded at the position, close to the filter screen cage, of the inner side of the filter barrel, one end of the vibration spring is welded with the side end of the filter barrel, a plurality of air inlets are equidistantly formed in the bottom of the side end of the filter barrel, an interception screen ring is fixedly installed at the position, corresponding to the air inlets, the inner side of the filter barrel is provided with a storage screen cage, and the bottom of the filter barrel is connected with a vibration motor base, the top end of the storage cylinder mould is penetrated with an air outlet pipe, and one end of the feed pipe is embedded with a second limiting valve.

Preferably, the filter vat is through connecting mounting bracket and sealing fixed plate fixed connection, vibrating motor input and external control ware output electric connection.

Preferably, the storage cylinder mould is connected with the interception cylinder ring in a clamping mode, and a protective cover plate is welded at the top end of the storage cylinder mould.

Preferably, a crystallization assembly is mounted on one side of the fixing frame, and the crystallization assembly comprises a connecting placing frame, a linkage disc, a fixed placing block, a mounting clamping hole, a crystallization mold, a driven belt pulley, a transmission motor, a driving belt pulley and a transmission belt;

the welding of mount one end has the connection rack, it rotates and is connected with the linkage disk to connect the rack top, the equidistance welding in linkage disk top has the fixed piece of placing of a plurality of, the fixed piece top of placing has seted up the installation joint hole, the inboard embedding joint of installation joint hole has the crystallization mould, linkage disk bottom middle part fixedly connected with driven pulley, it is connected with driving motor through the motor cabinet to connect rack bottom one side, driving motor output shaft and driving pulley fixed connection, driven pulley and driving pulley all are connected with the driving belt transmission.

Preferably, the diameter of the driven belt pulley is equal to that of the driving belt pulley, and the input end of the transmission motor is electrically connected with the output end of the external controller.

Preferably, a cooling assembly is installed on one side of the fixed placing block, and the cooling assembly comprises a water delivery pipe, a water inlet pipe, a third limiting valve and a water drainage pipe;

a water pipe penetrates through the bottom of the side end of the fixed placing block, the water inlet ends of the plurality of the conveying pipes are fixedly connected with the water outlet end of the water inlet pipe, a third limiting valve is embedded in one end of the water pipe, and a water drain pipe penetrates through the top of the side end of the fixed placing block.

Preferably, the inner diameter of the water inlet pipe is larger than the inner diameter of the water delivery pipe, and the inner diameter of the water delivery pipe is equal to that of the water drainage pipe.

Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use:

1. the hot melting component is arranged, hydrogen and oxygen are provided through the gas pipe, meanwhile, the air flow in the hot melting pipe is driven by the accelerating fan to flow, the air flows from bottom to top, so that the oxygen is driven to flow to the position of the hot melting gun, the stability of the hot flame of the hot melting gun is ensured, and when the air flows, the flow direction of the air is opposite to the falling direction of the powder raw material, so that the raw material can be blocked, the falling speed of the raw material is reduced, the time of keeping away from the contact with the hot flame is increased, meanwhile, the flow space of the air flow in the hot melting gun is reduced by the inclined baffle, the air flow is further accelerated, meanwhile, the speed of the raw material falling onto the inclined baffle can be further limited, so that the hot melting effect is further ensured, the powder can be separated from the molten liquid through the flow speed difference, and the condition that the refractive index of the strontium titanate crystal is prevented from being influenced by the powder contained in the molten liquid is generated, the molten liquid is filtered through the filter plate, the titration speed is limited through the burette and the first limiting valve, the change of the crystal shape caused by the overhigh blanking speed is avoided, and the quality and the crystallization efficiency of the product are further ensured.

2. The device is provided with a screening preheating assembly, the screening barrel is driven to vibrate by a vibrating motor and a vibrating spring, so that the internal storage cylinder cage is driven to vibrate, raw materials are filtered before being used, the raw materials with overlarge particles are prevented from being put into a hot melting pipe, the hot melting effect is ensured, the discharging speed of a feeding pipe is limited by a second limiting valve, the situation that the hot melting effect is influenced due to insufficient hot melting contact area caused by excessive discharging in a short time is avoided, meanwhile, large-particle raw materials are intercepted, the subsequent recovery treatment is facilitated, mixed gas is conveyed by a conveying pipe to enter the filtering cylinder cage, the gas is treated by the filtering cylinder cage, water vapor contained in the gas and part of impurity gas influencing the raw materials are absorbed, the heat can be effectively recovered, and meanwhile, the influence of the mixed gas on the raw materials is avoided, through preheating the raw materials for the raw materials carries the uniform temperature, thereby avoids the short time in the hot melt temperature not enough to lead to the poor condition of central point position hot melt effect to appear.

In conclusion, the hot melting assembly and the screening preheating assembly are matched with each other, so that the hot melting effect of the raw materials is guaranteed through multi-step processing during hot melting, the phenomenon that the crystallization liquid is abnormal due to insufficient hot melting is avoided, repeated operation is not needed, and the quality and the efficiency of product production are guaranteed.

3. Be provided with the crystallization subassembly, it rotates to drive driving pulley through driving motor, make driven pulley can rotate in step, it rotates on connecting the rack top to drive the linkage disk, make the fixed displacement to burette position department that places that the piece can be quick, thereby realize quick titration, simultaneously can be quick after the crystallization is accomplished place the piece to fix through the linkage disk and change, avoid liquid to titrate excessive condition and appear, and can directly change the crystallization mould, make can be quick when the strontium titanate crystal of different shapes of needs adjust, the efficiency of production and the quality of product have been guaranteed, thereby the speed of crystallization has been accelerated.

In conclusion, the hot melting assembly and the crystallization assembly are matched with each other, the titration speed is controlled, the crystallization mold is supplemented in time, the crystallization efficiency of the product is guaranteed, the waste of raw materials is reduced, and the strontium titanate crystals with different sizes and shapes can be rapidly manufactured by replacing different molds.

4. Be provided with cooling element, the discharge pipe, conveyer pipe and outlet duct, through the raceway, the inlet tube supplies water fast, and restrict the speed of rivers according to the temperature of reality through the third restriction valve, make the temperature of the control crystallization that can be quick when the crystallization, avoid appearing the high temperature and lead to crystallization too slow condition appearance and the low condensation thing that leads to crystallization appearance wheat awn form of crystallization too low, thereby the quality of the crystallization of strontium titanate crystal has been guaranteed, through the discharge pipe, conveyer pipe and outlet duct discharge the mist, can stabilize inside atmospheric pressure difference when realizing thermal recovery, avoid the too big condition appearance of inside atmospheric pressure.

Combine to use, mutually support through cooling module and crystallizing component, can the temperature of effectual control crystallization to further assurance the product quality of crystallization, mutually support through a plurality of subassemblies, make the environment that can stably make when making strontium titanate crystal and the quality of product, avoid the inside condition that contains impurity of product to appear, and need not the repetitive operation, accelerated the efficiency of production.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic structural view of the heat stake assembly of the present invention;

FIG. 3 is a schematic view of the mounting structure of the inclined baffle of the present invention;

FIG. 4 is a schematic structural view of a screen pre-heat assembly of the present invention;

FIG. 5 is a schematic view of the installation structure of the filter vat of the present invention;

fig. 6 is a schematic view of an installation structure of an intercepting net ring of the present invention;

FIG. 7 is a schematic structural view of a crystallization assembly of the present invention;

FIG. 8 is a schematic view of the mounting structure of the link plate of the present invention;

FIG. 9 is a schematic structural view of the cooling assembly of the present invention;

reference numbers in the figures: 1. a fixed mount;

2. a hot melt assembly; 201. a hot melt tube; 202. fixing the clamping and connecting plate; 203. a hot melt gun; 204. a gas delivery pipe; 205. an inclined baffle plate; 206. an oxygen tube; 207. sealing the fixed plate; 208. an exhaust port; 209. an accelerating fan; 210. a limiting arc plate; 211. sealing the arc plate; 212. clamping the limiting groove; 213. a filter plate; 214. feeding a hopper; 215. a burette; 216. a first limiting valve;

3. screening the preheating assembly; 301. a feed pipe; 302. a filter vat; 303. a discharge pipe; 304. a delivery pipe; 305. fixing the support ring; 306. a filter screen cage; 307. vibrating the spring; 308. a screening cylinder; 309. an air inlet; 310. intercepting a network ring; 311. storing the net cage; 312. a vibration motor; 313. an air outlet pipe; 314. a second limiting valve;

4. a crystallization assembly; 401. connecting the placing rack; 402. a linkage disk; 403. fixing the placing block; 404. installing a clamping hole; 405. crystallizing the mold; 406. a driven pulley; 407. a drive motor; 408. a drive pulley; 409. a drive belt;

5. a cooling assembly; 501. a water delivery pipe; 502. a water inlet pipe; 503. a third limiting valve; 504. and a water discharge pipe.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1-9, the present invention provides a technical solution, a flame fusion method strontium titanate single crystal growth apparatus, comprising a fixing frame 1, a hot melting assembly 2 is installed on one side of the fixing frame 1, the hot melting assembly 2 comprises a hot melting pipe 201, a fixing clamping plate 202, a hot melting gun 203, a gas pipe 204, an inclined baffle 205, an oxygen pipe 206, a sealing fixing plate 207, an exhaust port 208, an accelerating fan 209, a limiting arc plate 210, a sealing arc plate 211, a clamping limiting groove 212, a filter plate 213, a discharging hopper 214, a burette 215 and a first limiting valve 216;

one end of the fixing frame 1 is fixedly provided with a hot melting pipe 201, the side end of the hot melting pipe 201 is symmetrically welded with a fixing clamping plate 202, one end of the fixing clamping plate 202 is clamped with a plurality of hot melting guns 203 at equal intervals, the air inlet ends of the hot melting guns 203 are fixedly connected with the air outlet ends of the air conveying pipes 204, the hot melting guns 203 are penetratingly arranged at one end of the hot melting pipe 201, and the inner side of the hot melting pipe 201, close to the positions of the hot melting guns 203, is welded with a plurality of inclined baffles 205 at equal intervals;

an oxygen pipe 206 penetrates through the bottom of the side end of the hot melting pipe 201, the air inlet end of the air conveying pipe 204 and the air inlet end of the oxygen pipe 206 are fixedly connected with the air outlet end of an external air supply tank, the stability of air supply is guaranteed, sundries are prevented from being generated in the conveying process of air, a sealing fixing plate 207 is symmetrically welded to the top end of the hot melting pipe 201, an air outlet 208 is formed in the top end of the sealing fixing plate 207, and an accelerating fan 209 is embedded into the inner side of the air outlet 208;

the welding of 201 bottom ends of hot melt pipe has spacing arc board 210, spacing arc board 210 one end articulates there is sealed arc board 211, spacing arc board 210 and the inboard bottom of sealed arc board 211 have all been seted up joint spacing groove 212, joint spacing groove 212 inboard embedding joint has filter 213, the biggest turned angle of sealed arc board 211 is 180 degrees, the quick change filter 213 of being convenient for, spacing arc board 210 bottom welding has hopper 214 down, hopper 214 top diameter equals with spacing arc board 210 external diameter down, the stability of the ejection of compact has been guaranteed, hopper 214 bottom runs through buret 215 down, first restriction valve 216 is installed in buret 215 one end embedding, fan 209 input and external control ware output electric connection accelerate, external control ware input and external power source output electric connection.

A screening preheating assembly 3 is installed on one side of the sealing fixing plate 207, and the screening preheating assembly 3 comprises a feeding pipe 301, a filter barrel 302, a discharging pipe 303, a conveying pipe 304, a fixing support ring 305, a filter screen cage 306, a vibrating spring 307, a screening barrel 308, an air inlet hole 309, an intercepting screen ring 310, a storage screen cage 311, a vibrating motor 312, an air outlet pipe 313 and a second limiting valve 314;

the top end of the sealing fixing plate 207 is penetrated with the feeding pipe 301, the top end of the feeding pipe 301 is penetrated and installed in the middle of the bottom end of the filtering barrel 302, the filtering barrel 302 is fixedly connected with the sealing fixing plate 207 through a connecting installation frame, the connection stability is ensured, the position of the top end of the sealing fixing plate 207, which corresponds to the air outlet 208, is penetrated with the discharging pipe 303, one end of the discharging pipe 303 is fixedly connected with one end of the conveying pipe 304, the bottom end of the inner side of the filtering barrel 302 is welded with a fixing support ring 305, the top end of the fixing support ring 305 is fixedly provided with a filter net cage 306, the top end of the filter net cage 306 is fixedly connected with the air outlet end of the conveying pipe 304 through an adapter, the position of the inner side of the filtering barrel 302, which is close to the filter net cage 306, is welded with a vibration spring 307, one end of the vibration spring 307 is welded with the side end 308 of the screening barrel, the bottom of the side end of the screening barrel 308 is equidistantly provided with a plurality of air inlets 309, and the intercepting net ring 310 is fixedly installed at the position of the inner side of the screening barrel 308, which corresponds to the air inlets 309, deposit cylinder mould 311 has been placed to screening drum 308 inboard, deposit cylinder mould 311 top welding has a protective cover, be convenient for protect, avoid impurity to drop, deposit cylinder mould 311 and intercept net ring 310 joint and be connected, the stability of connecting has been guaranteed, screening drum 308 bottom is connected with vibrating motor 312 through the motor cabinet, it has outlet duct 313 to run through on depositing cylinder mould 311 top, second restriction valve 314 is installed in the embedding of inlet pipe 301 one end, vibrating motor 312 input and external control ware output electric connection.

A crystallization component 4 is arranged on one side of the fixing frame 1, and the crystallization component 4 comprises a connecting placing frame 401, a linkage disc 402, a fixed placing block 403, an installing clamping connection hole 404, a crystallization mould 405, a driven pulley 406, a transmission motor 407, a driving pulley 408 and a transmission belt 409;

1 one end welding of mount has the connection rack 401, it is connected with linkage disc 402 to connect the rack 401 top and rotate, linkage disc 402 top equidistance welding has the fixed piece 403 of placing of a plurality of, the fixed piece 403 top of placing has been seted up the installation joint hole 404 that connects, the inboard embedding joint that installs the joint hole 404 has crystallization mould 405, linkage disc 402 bottom middle part fixedly connected with driven pulley 406, it is connected with driving motor 407 through the motor cabinet to connect rack 401 bottom one side, driving motor 407 output shaft and driving pulley 408 fixed connection, driven pulley 406 diameter equals with driving pulley 408 diameter, driven stability has been guaranteed, driven pulley 406 and driving pulley 408 all are connected with the transmission of driving belt 409, the input of driving motor 407 and external control ware output electric connection.

A cooling assembly 5 is arranged on one side of the fixed placing block 403, and the cooling assembly 5 comprises a water conveying pipe 501, a water inlet pipe 502, a third limiting valve 503 and a water outlet pipe 504;

fixed piece 403 side end bottom of placing runs through has raceway 501, and a plurality of raceways 501 are intake the end and all go out water end fixed connection with inlet tube 502, and third restriction valve 503 is installed in raceway 501 one end embedding, and fixed piece 403 side end top of placing runs through has drain pipe 504, and inlet tube 502 internal diameter is greater than raceway 501 internal diameter, and raceway 501 internal diameter equals with drain pipe 504 internal diameter for can maintain invariable stability when business turn over water.

The working principle and the using process of the invention are as follows: before the strontium titanate crystal needs to be manufactured, a worker places the storage cylinder mould 311 into the screening cylinder 308, connects the storage cylinder mould 311 with the interception cylinder ring 310 in a clamping manner, connects the filter cylinder mould 306 to the top end of the fixed support ring 305 in a clamping manner, simultaneously fixedly connects the air outlet end of the conveying pipe 304 with the air inlet end of the filter cylinder mould 306, and clamps the crystallization mould 405 to the inner side of the mounting clamping hole 404 on the inner side of the fixed placement block 403, so that the raw materials and the mould can be quickly placed and limited;

after the installation is completed, the vibration motor 312 is started, the vibration motor 312 and the vibration spring 307 drive the screening cylinder 308 to vibrate, thereby driving the storage cylinder 311 to rock, so that the powder placed in the storage cylinder 311 can be effectively screened, the powder drops to the bottom end of the filter barrel 302, the second limiting valve 314 is opened, the raw material is discharged, the powder enters the hot melting gun 201 along the feeding pipe 301, hydrogen is provided for the hot melting gun 203 through the gas transmission pipe 204, oxygen is provided for the hot melting gun 201 through the oxygen pipe 206, the accelerating fan 209 is started at the same time, under the driving of the accelerating fan 209, the airflow in the hot melting pipe 201 flows from bottom to top, the oxygen is driven to the position of the hot melting gun 203, thereby rapidly providing high-temperature flame, directly carrying out hot melting on the raw material, simultaneously, the blanking speed of the raw material is limited through the inclined baffle plate 205, meanwhile, the airflow and the direction of the powder are in convection, further slowing down the falling speed of the powder, the powder can be hot melted for a long time, so that the mixed powder in the molten liquid is avoided, the crystallization quality can be ensured during subsequent crystallization, the hot melted liquid flows to the position of the filter plate 213 along the inclined baffle plate 205, the liquid is filtered through the filter plate 213, impurities contained in the raw materials can be effectively removed in the melting process, the liquid flows to the position of the blanking hopper 214 after being filtered and then flows into the burette 215, the first limiting valve 216 is opened, the liquid can effectively flow out, the titration speed can be controlled, and the change of the crystal shape caused by over-fast titration is avoided;

the driving motor 407 is started, the driving belt pulley 408 is driven to rotate by the driving motor 407, so that the driving belt 409 is driven to rotate, the driven belt pulley 406 can synchronously rotate, the linkage disc 402 is driven to rotate at the top end of the connecting placing frame 401, the fixed placing block 403 can quickly move to the position of the burette 215, so that quick titration is realized, and the crystallization mold 405 is directly replaced, so that quick adjustment can be realized when strontium titanate crystals of different shapes are needed, the production efficiency and the product quality are ensured, and meanwhile, the fixed placing block 403 can be quickly replaced through the linkage disc 402 after crystallization is completed, so that the crystallization speed is accelerated;

when in crystallization, water is fed through the water inlet pipe 502, so that cooling water can rapidly enter the water conveying pipe 501, the third limiting valve 503 is opened, the cooling water can rapidly enter the inner side of the fixed placing block 403, and the fixed placing block 403 is contacted with the crystallization die 405, so that the temperature of the crystallization is rapidly adjusted, the phenomenon that the crystallization is too slow due to too high temperature or the crystallization is broken due to insufficient temperature is avoided, and the crystallization effect of a product is ensured;

during the hot melting, the hot mixed gas is driven by the accelerating fan 209 to be output into the exhaust pipe 303 through the exhaust port 208, then the gas is conveyed into the filter screen cage 306 through the conveying pipe 304, the gas is dried through the filter screen cage 306, thereby preventing water vapor from entering the screen cylinder 308, gas from entering the screen cylinder 308 through the gas inlet holes 309, thereby preheating the raw materials placed in the storage cylinder mould 311, preliminarily heating the raw materials before hot melting, avoiding the situation of low heating speed caused by low early-stage temperature during heating, thereby avoiding the condition of product denaturation or insufficient internal melting caused by overlarge temperature difference, further effectively processing the raw materials during hot melting, therefore, the product quality is further ensured, heat is recycled, and resource waste is effectively reduced.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.