Device and method for preparing boron trichloride gas

Abstract

The invention discloses a device and method for preparing boron trichloride gas. An electric heating fixing barrel is connected to the inner side of a positioning operation frame, a transmission motor is installed at one end of the electric heating fixing barrel through a motor base, a double-shaft motor is installed at the other end of the electric heating fixing barrel through a motor base, and a storage overturning barrel is clamped to one end of one output shaft of the double-shaft motor; the raw materials are stirred through two sets of overturning, air is evenly fed, the heating area and the air contact area are increased, the raw materials are preheated in cooperation with heat circulation, the temperature of finished products is reduced, and the heat efficiency is improved. According to the technical scheme, the condition that the reaction is influenced by equipment cooling caused by insufficient contact area and too low raw material temperature during production can be avoided, and the condensation speed of boron trichloride is accelerated through finished product heat dissipation cooling and condensation cooling, so that rapid exhaust is realized, and the speed of a finished product is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of boron trichloride preparation, in particular to a device and a method for preparing boron trichloride gas. Background Art

[0002] Boron trichloride is an inorganic compound with the chemical formula BCl3. It is mainly used as a catalyst for organic reactions, such as esterification, alkylation, polymerization, isomerization, sulfonation, nitration, etc. It can also be used as an antioxidant when casting magnesium and alloys. It can also be used as the main raw material for preparing boron halides, elemental boron, borane, sodium borohydride, etc. It is also used in the electronics industry, etc. At present, when preparing boron trichloride, elemental boron and chlorine are generally used to heat the reaction in a tubular reactor.

[0003] However, during the production of boron trichloride, the elemental boron material inside the tubular reactor is fixed in position, so the inside of the boron material cannot be effectively heated and cannot fully contact with the chlorine gas, which prolongs the reaction time. In addition, the boron material is not preheated, so the internal temperature is lowered when it is put into the reactor, which affects the actual reaction effect and prolongs the operation time. Summary of the invention

[0004] The present invention provides a device and method for preparing boron trichloride gas, which can effectively solve the problem raised in the above background technology that, during the production of boron trichloride, the elemental boron material in a tubular reactor is fixed in position, so that the inside of the boron material cannot be effectively heated and cannot fully contact with chlorine gas, resulting in a prolonged reaction time, and the boron material is not preheated, so that the internal temperature is reduced when it is put into the reactor, which affects the actual reaction effect and prolongs the operation time.

[0005] To achieve the above object, the present invention provides the following technical solution: a device for preparing boron trichloride gas, comprising a positioning operation frame, wherein a processing component is arranged inside the positioning operation frame;

[0006] The processing assembly includes an electric heating fixing barrel;

[0007] An electric heating fixed barrel is fixedly connected to the middle part of the inner side of the positioning operation frame, a transmission motor is installed at one end of the electric heating fixed barrel through a motor seat, and a double-axis motor is installed at the other end of the electric heating fixed barrel through the motor seat, one end of one of the output shafts of the double-axis motor is clamped with a storage turning barrel, and a stirring and processing frame is clamped at the position of the storage turning barrel corresponding to the output shaft of the transmission motor; an air intake pipe frame is penetrated and connected at one end of the electric heating fixed barrel, and an exhaust pipe frame is penetrated and connected at the other end of the electric heating fixed barrel, and fixed air pipes are clamped at both sides of one end of the exhaust pipe frame through adapters, and one end of the two fixed air pipes is penetrated and connected with a feeding fixed barrel, and a stirring and separation frame is rotatably connected to the inner side of the feeding fixed barrel, a chain transmission box is clamped at the position of the stirring and separation frame corresponding to the top of the feeding fixed barrel, and a reversing transmission box is clamped at the side end of the electric heating fixed barrel corresponding to the position of the double-axis motor;

[0008] The top of the fixed feed barrel is penetrated by a feed fixed pipe, the side end of the fixed feed barrel is penetrated by a processing pipe rack, the top of the side end of the positioning operation rack is clamped with a double-layer cooling barrel, the inner side of the double-layer cooling barrel is sleeved with a condenser, the side end of the double-layer cooling barrel is clamped with a heat exchange fixed plate corresponding to the condenser position, the side end of the double-layer cooling barrel is equidistantly penetrated by a U-shaped circulation pipe, the side ends of the processing pipe rack and the U-shaped circulation pipe are embedded with accelerating fans, the top of the side end of the double-layer cooling barrel is penetrated by a reflux fixed pipe, the bottom end of the fixed feed barrel is penetrated by a discharge fixed pipe, one end of the feed fixed pipe, the reflux fixed pipe and the discharge fixed pipe are embedded with limiting valves, one end of the air intake pipe rack is penetrated by an injection pipe rack, and a fixed air pump is installed at the position of the injection pipe rack at one end of the positioning operation rack through a motor seat.

[0009] Preferably, the storage turning cylinder is rotatably mounted on the inner side of the electric heating fixed barrel, the stirring and processing frame is rotatably sleeved with the storage turning cylinder, and the feed fixed barrel is fixedly engaged with the electric heating fixed barrel.

[0010] Preferably, the top of the stirring and separating frame is snap-fitted with the output shaft of the chain transmission box, the output shaft of the reversing transmission box is connected to the input shaft of the chain transmission box by bolts, and the input shaft of the reversing transmission box is sleeve-fitted with the output shaft of the dual-axis motor.

[0011] Preferably, the processing tube rack is combined with a double-layer cooling barrel in a sleeve connection, and the side end of the condenser is fitted with the side end of the heat exchange fixing plate.

[0012] Preferably, the material discharge fixed pipe is installed through the side end of the electric heating fixed barrel, and the reflux fixed pipe and the injection pipe rack are connected by an adapter.

[0013] Preferably, the fixed air pump is connected to the injection pipe rack via an adapter;

[0014] The input ends of the electric heating fixed barrel, the transmission motor, the dual-shaft motor, the condenser, the accelerating fan, the limiting valve and the fixed air pump are all electrically connected to the output end of the external controller;

[0015] The input terminal of the external controller is electrically connected to the output terminal of the external power supply.

[0016] Preferably, a swing collection assembly is provided at the bottom end of the positioning operation frame;

[0017] The swing collection assembly includes an operating fixed block;

[0018] The cam is provided with a plurality of limit springs at the top of the plurality of limit springs, and a plurality of limit springs are provided at the top of the plurality of limit springs, and a plurality of limit springs are provided at the top of the plurality of limit springs, and a plurality of limit springs are provided at the top of the plurality of limit springs. A swing motor is provided at one end of the operation positioning plate through a motor seat, and a combination mounting groove is symmetrically provided at the top of the operation positioning plate. A combination mounting bracket is sleeved on two of the combination mounting grooves, and a storage fixed tank is fixedly connected to the top of the combination mounting bracket, and a combination threaded pipe is penetrated through the top of the storage fixed tank, and a check valve is embedded in one end of the combination threaded pipe, and a discharge operating pipe is penetrated through one end of the double-layer cooling barrel, and an extraction pump is installed at one end of the positioning operation frame corresponding to the position of the discharge operating pipe through the motor seat, and a closed threaded pipe is rotatably sleeved on the side end of the discharge operating pipe, and a control valve is embedded in one end of the discharge operating pipe.

[0019] Preferably, the combined positioning sleeve is rotatably connected to the fixed support block, the output shaft of the swing motor is engaged with one end of the operating fixed block, and the bottom end of the combined mounting frame is fitted with the top end of the operating positioning plate.

[0020] Preferably, the combined threaded tube is connected to the closed threaded tube by threads, one end of the extraction pump is engaged with one end of the discharge operation tube by an adapter, and the discharge operation tube is inserted and installed inside the combined threaded tube;

[0021] The input ends of the swing motor, the check valve, the extraction pump and the control valve are all electrically connected to the output end of the external controller.

[0022] Preferably, a method for preparing boron trichloride gas comprises the following steps:

[0023] S1. Raw material preparation: heat drying the selected elemental boron material, purifying and liquefying the selected chlorine gas, and connecting the raw materials to the feed positions respectively;

[0024] S2, preheating injection: inject inert gas into the electric heating fixed barrel through the injection pipe rack, fixed air pump and air intake pipe rack, and exhaust the internal air, then heat the storage turning cylinder by the electric heating fixed barrel, and inject elemental boron material through the storage turning cylinder, stirring processing rack and unloading fixed pipe;

[0025] S3, product preparation: the transmission motor drives the stirring and processing frame, the dual-axis motor drives the storage and turning cylinder, thereby driving the elemental boron material to rotate and heat, the injection pipe rack, the fixed air pump and the air intake pipe rack inject chlorine into the electric heating fixed barrel, and then the swing motor drives the operation fixed block and the positioning operation frame to swing, and the high temperature and continuous turning contact are used to achieve the preparation of boron trichloride;

[0026] S4. Condensation recovery: Boron trichloride is cooled by a double-layer cooling barrel, a condenser, and a heat exchange fixed plate, and the boron trichloride condensed into liquid is recovered by a discharge operation pipe, an extraction pump, a storage fixed tank, and a combined threaded pipe, thereby completing the storage of the product.

[0027] Compared with the prior art, the present invention has the following beneficial effects: the present invention has a scientific and reasonable structure and is safe and convenient to use:

[0028] 1. A processing component is provided. The transmission motor drives the stirring processing frame to rotate, and the dual-axis motor drives the storage turning cylinder to rotate, which drives the internal boron material to continuously turn over and be evenly heated; and then the air is evenly inlet through the air intake pipe rack, so that it can be fully contacted during the reaction, ensuring the efficiency of the overall reaction and effectively shortening the reaction time;

[0029] The dual-axis motor drives the stirring and separation frame through the reversing transmission box and the chain transmission box to push the elemental boron material in the feed fixed barrel to be discharged, and the hot boron trichloride is injected into the feed fixed barrel through the exhaust pipe frame and the fixed air pipe. Through synchronous transmission, the reaction and feeding are operated at the same time, which ensures the stability of feeding and avoids the occurrence of excessive single input. In addition, the boron material is preheated and the temperature of boron trichloride is reduced by stirring and heating, which can not only realize the recovery of heat, but also preheat the raw materials and cool the finished products. The temperature of the gas is reduced by the condenser and the heat exchange fixed plate, and then the U-shaped circulation pipe and the acceleration fan drive the cold air circulation to balance the internal temperature, so that it can be operated synchronously during cooling, ensuring the overall cooling speed;

[0030] The raw materials are stirred by two groups and the air is evenly introduced to increase the heating area and the gas contact area. The raw materials are preheated with the heat cycle to reduce the temperature of the finished product. This can avoid the situation in which the equipment temperature drops and the reaction is affected by insufficient contact area and too low raw material temperature during production. The condensation speed of boron trichloride is accelerated by heat dissipation and cooling of the finished product and condensation cooling, thereby achieving rapid exhaust, ensuring the speed of the finished product, reducing the overall operation time, and ensuring production efficiency and product quality.

[0031] 2. A swing collection assembly is provided, which drives the operation fixed block and the positioning operation frame to swing through the swing motor, supports and buffers the equipment through the fixed support block, the combined positioning sleeve and the limiting spring, and drives the whole equipment to swing, so that the raw materials and finished products inside can be fully in contact, accelerating the speed of heating and cooling;

[0032] By connecting the combined mounting frame and the combined mounting slot, the storage fixed tank and the discharge operation pipe are combined by the closed threaded pipe and the combined threaded pipe, and the boron trichloride liquid in the double-layer cooling barrel is extracted by the extraction pump and the discharge operation pipe into the inner side of the storage fixed tank, thereby completing the discharge, and through multi-stage combined operation, the replacement of the storage equipment can be completed quickly, ensuring the rapid and stable storage collection, allowing for rapid maintenance during operation and reducing labor intensity.

[0033] To summarize, through the cooperation between the processing component and the swinging collection component, the raw materials can be fully contacted and heated through the internal stirring treatment and the external shaking treatment during the production process, thereby ensuring the reaction speed of the raw materials. At the same time, the finished product is driven back and forth by swinging, so that it is evenly heated, the cooling speed is accelerated, and the speed and efficiency of production are guaranteed. Through the cooperation of multiple components, the stable operation of the equipment and the rapid preparation of the product are guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0035] In the attached picture:

[0036] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0037] Figure 2 is a schematic diagram of the structure of the processing component of the present invention;

[0038] Figure 3 It is a schematic diagram of the installation structure of the electric heating fixed barrel of the present invention;

[0039] Figure 4 It is a schematic diagram of the installation structure of the stirring and processing rack of the present invention;

[0040] Figure 5 It is a schematic diagram of the installation structure of the stirring and separating frame of the present invention;

[0041] Figure 6 It is a schematic diagram of the installation structure of the accelerating fan of the present invention;

[0042] Figure 7 is a schematic diagram of the structure of the swing collection assembly of the present invention;

[0043] Figure 8 It is a schematic diagram of the installation structure of the storage fixed tank of the present invention;

[0044] Numbers in the figure: 1. Positioning operation frame;

[0045] 2. Processing components; 201. Electric heating fixed barrel; 202. Transmission motor; 203. Double-axis motor; 204. Storage and turning barrel; 205. Stirring and processing rack; 206. Inlet pipe rack; 207. Exhaust pipe rack; 208. Fixed air pipe; 209. Feeding fixed barrel; 210. Stirring and separation rack; 211. Chain transmission box; 212. Reversing transmission box; 213. Input fixed pipe; 214. Processing pipe rack; 215. Double-layer cooling barrel; 216. Condenser; 217. Heat exchange fixed plate; 218. U-shaped circulation pipe; 219. Accelerating fan; 220. Reflux fixed pipe; 221. Unloading fixed pipe; 222. Limiting valve; 223. Injection pipe rack; 224. Fixed air pump;

[0046] 3. Swinging collection assembly; 301. Operating fixed block; 302. Fixed support block; 303. Operating positioning plate; 304. Limiting spring; 305. Combined positioning sleeve; 306. Swinging motor; 307. Combined mounting groove; 308. Combined mounting frame; 309. Storage fixed tank; 310. Combined threaded pipe; 311. Check valve; 312. Discharge operation pipe; 313. Extraction pump; 314. Closing threaded pipe; 315. Control valve. DETAILED DESCRIPTION

[0047] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0048] Example: Figure 1-8 As shown, the present invention provides a technical solution, a device for preparing boron trichloride gas, comprising a positioning operation frame 1, and a processing component 2 is arranged inside the positioning operation frame 1;

[0049] The processing assembly 2 includes an electric heating fixed barrel 201, a transmission motor 202, a dual-axis motor 203, a storage turning barrel 204, a stirring processing frame 205, an air intake pipe frame 206, an exhaust pipe frame 207, a fixed air pipe 208, a feed fixed barrel 209, a stirring separation frame 210, a chain transmission box 211, a reversing transmission box 212, an input fixed pipe 213, a processing pipe frame 214, a double-layer cooling barrel 215, a condenser 216, a heat exchange fixed plate 217, a U-shaped circulation pipe 218, an accelerating fan 219, a reflux fixed pipe 220, a discharge fixed pipe 221, a limiting valve 222, an injection pipe frame 223 and a fixed air pump 224;

[0050] An electric heating fixed barrel 201 is fixedly connected to the middle part of the inner side of the positioning operation frame 1, a transmission motor 202 is installed at one end of the electric heating fixed barrel 201 through a motor seat, a double-axis motor 203 is installed at the other end of the electric heating fixed barrel 201 through a motor seat, one end of one of the output shafts of the double-axis motor 203 is clamped with a storage flip cylinder 204, and a stirring and processing frame 205 is clamped at the position of the storage flip cylinder 204 corresponding to the output shaft of the transmission motor 202. The storage flip cylinder 204 is rotatably installed on the inner side of the electric heating fixed barrel 201, and the stirring and processing frame 205 is rotatably sleeved with the storage flip cylinder 204, so that the boron material can be effectively processed when it is driven to rotate and heat. An air intake pipe frame 206 is penetrated and connected at one end of the electric heating fixed barrel 201, and an exhaust pipe frame 207 is penetrated and connected at the other end of the electric heating fixed barrel 201. The fixed air pipe 206 is clamped on both sides of one end of the exhaust pipe frame 207 through an adapter. 8. One end of the two fixed air pipes 208 is connected with a feed fixed barrel 209, which is fixedly engaged with the electric heating fixed barrel 201, so that the feeding can be operated steadily. The inner side of the feed fixed barrel 209 is rotatably connected with a stirring and separating frame 210. A chain transmission box 211 is connected at the top of the feed fixed barrel 209 corresponding to the stirring and separating frame 210. A reversing transmission box 212 is connected at the side end of the electric heating fixed barrel 201 corresponding to the position of the dual-axis motor 203. The top of the stirring and separating frame 210 is connected to the output shaft of the chain transmission box 211. The output shaft of the reversing transmission box 212 is connected to the input shaft of the chain transmission box 211 by bolts. The input shaft of the reversing transmission box 212 is connected to the output shaft of the dual-axis motor 203 by sleeve connection, so that the reversing transmission box 212 can be operated steadily during the reversing transmission and the synchronous transmission, ensuring that the stirring process and the feeding process can be realized at the same time.

[0051] The top of the fixed feed barrel 209 is penetrated with a fixed input pipe 213, and the side end of the fixed feed barrel 209 is penetrated with a processing pipe rack 214, and the processing pipe rack 214 is sleeved with a double-layer cooling barrel 215, so that the boron trichloride gas can be recovered and separated from the chlorine gas. The top of the side end of the positioning operation frame 1 is clamped with a double-layer cooling barrel 215, and the inner side of the double-layer cooling barrel 215 is sleeved with a condenser 216. The side end of the double-layer cooling barrel 215 is clamped with a heat exchange fixed plate 217 at the position of the condenser 216, and the side end of the condenser 216 is fitted with the side end of the heat exchange fixed plate 217, so as to ensure the stable operation of the heat exchange, and the side end of the double-layer cooling barrel 215 is equidistantly penetrated with a U-shaped circulation pipe 218, and the side ends of the processing pipe rack 214 and the U-shaped circulation pipe 218 are embedded with an accelerating fan 219, and the top of the side end of the double-layer cooling barrel 215 is penetrated with a reflux fixed The bottom end of the fixed feed barrel 209 is penetrated and connected with a fixed feed pipe 221, which is installed on the side end of the electric heating fixed barrel 201, so that it can move downward through the top when feeding, and operate steadily, ensuring the steady operation of feeding. The fixed input pipe 213, the reflux fixed pipe 220 and the fixed feed pipe 221 are embedded with a limiting valve 222 at one end, and the injection pipe rack 223 is penetrated and connected at one end of the intake pipe rack 206. The reflux fixed pipe 220 and the injection pipe rack 223 are connected by an adapter, so that the operation can be steady when the chlorine is recovered and injected, and the chlorine recovery process is realized, ensuring the full utilization of the raw materials. A fixed air pump 224 is installed at one end of the positioning operation frame 1 corresponding to the injection pipe rack 223 through a motor seat, and the fixed air pump 224 is connected to the injection pipe rack 223 through an adapter, so that the operation can be steady when the air is inlet;

[0052] For stable operation of the equipment, the input ends of the electric heating fixed barrel 201, the transmission motor 202, the dual-axis motor 203, the condenser 216, the accelerating fan 219, the limiting valve 222 and the fixed air pump 224 are all electrically connected to the output end of the external controller;

[0053] The input terminal of the external controller is electrically connected to the output terminal of the external power supply.

[0054] A swing collection assembly 3 is provided at the bottom end of the positioning operation frame 1;

[0055] The swing collection assembly 3 includes an operation fixed block 301, a fixed support block 302, an operation positioning plate 303, a limiting spring 304, a combined positioning sleeve 305, a swing motor 306, a combined mounting groove 307, a combined mounting frame 308, a storage fixed tank 309, a combined threaded pipe 310, a check valve 311, a discharge operation pipe 312, an extraction pump 313, a closing threaded pipe 314 and a control valve 315;

[0056] An operation fixed block 301 is fixedly connected to the middle part of the bottom end of the positioning operation frame 1, and a fixed support block 302 is symmetrically installed at the bottom end of the positioning operation frame 1. An operation positioning plate 303 is rotatably connected to the side end of the operation fixed block 301. A plurality of limiting springs 304 are symmetrically installed on the top of the operation positioning plate 303. A combination positioning sleeve 305 is installed at the position of the fixed support block 302 corresponding to the top of the plurality of limiting springs 304. A swing motor 306 is installed at one end of the operation positioning plate 303 through a motor seat. The combination positioning sleeve 305 is rotatably connected to the fixed support block 302, and the output shaft of the swing motor 306 is engaged with one end of the operation fixed block 301. The bottom end of the combination mounting frame 308 is fitted with the top end of the operation positioning plate 303, so that the overall swing operation can be driven when the equipment is in use, so as to realize the swinging back and forth of the raw materials and the finished products, thereby ensuring the processing effect and efficiency. A combination mounting groove 307 is symmetrically opened on the top of the operation positioning plate 303, and the two ends are connected. A combined mounting groove 307 is sleeved with a combined mounting frame 308, a storage fixed tank 309 is fixedly connected to the top of the combined mounting frame 308, a combined threaded pipe 310 is penetrated and connected to the top of the storage fixed tank 309, a check valve 311 is embedded and installed at one end of the combined threaded pipe 310, a discharge operation pipe 312 is penetrated and connected to one end of the double-layer cooling barrel 215, the combined threaded pipe 310 is threadedly connected to the closed threaded pipe 314, the discharge operation pipe 312 is inserted and installed on the inner side of the combined threaded pipe 310, ensuring steady operation during combined connection and closed air intake, an extraction pump 313 is installed at one end of the positioning operation frame 1 corresponding to the position of the discharge operation pipe 312 through a motor seat, one end of the extraction pump 313 is engaged with one end of the discharge operation pipe 312 through an adapter, ensuring stable operation of liquid discharge, the side end of the discharge operation pipe 312 is rotatably sleeved with a closed threaded pipe 314, and a control valve 315 is embedded and installed at one end of the discharge operation pipe 312;

[0057] For stable operation of the device, the input ends of the swing motor 306 , the check valve 311 , the extraction pump 313 and the control valve 315 are all electrically connected to the output end of the external controller.

[0058] A method for preparing boron trichloride gas comprises the following steps:

[0059] S1. Raw material preparation: heat drying the selected elemental boron material, purifying and liquefying the selected chlorine gas, and connecting the raw materials to the feed positions respectively;

[0060] S2, preheating injection: inject inert gas into the electric heating fixed barrel 201 through the injection pipe rack 223, the fixed air pump 224 and the air intake pipe rack 206, and exhaust the internal air, then heat the storage turning cylinder 204 through the electric heating fixed barrel 201, and inject elemental boron material through the storage turning cylinder 204, the stirring processing rack 205 and the material discharge fixed pipe 221;

[0061] S3, product preparation: The transmission motor 202 drives the stirring processing frame 205, and the dual-axis motor 203 drives the storage turning cylinder 204, thereby driving the elemental boron material to rotate and heat, and the injection pipe rack 223, the fixed air pump 224 and the air intake pipe rack 206 inject chlorine into the electric heating fixed barrel 201, and then the swing motor 306 drives the operation fixed block 301 and the positioning operation frame 1 to swing, and high temperature and continuous turning contact are used to achieve the preparation of boron trichloride;

[0062] S4, condensation recovery: Boron trichloride is cooled by the double-layer cooling barrel 215, the condenser 216, and the heat exchange fixed plate 217, and the boron trichloride condensed into liquid is recovered by the discharge operation pipe 312, the extraction pump 313, the storage fixed tank 309 and the combined threaded pipe 310, thereby completing the storage of the product.

[0063] The working principle and use process of the present invention are as follows: the staff opens the limiting valve 222 at the position of the input fixed pipe 213, and inputs the elemental boron material into the inner side of the input fixed barrel 209 through the input fixed pipe 213, and heats the reaction position through the electric heating fixed barrel 201. The inert gas is injected into the electric heating fixed barrel 201 through the fixed air pump 224, the injection pipe rack 223 and the intake pipe rack 206 to exhaust the internal air. After exhausting, the limiting valve 222 at the position of the unloading fixed pipe 221 is opened. At the same time, the transmission motor 202 drives the stirring and processing rack 205 to rotate, and the double-axis motor 203 drives the storage flip barrel 204 to turn. At this time, the double-axis motor 203 drives the reversing transmission box 212 and the chain. The transmission box 211 drives the stirring and separating frame 210 to rotate, and the stirring and separating frame 210 pushes the elemental boron material in the feed fixed barrel 209 along the discharge fixed pipe 221 into the inner side of the storage turning cylinder 204, and the storage turning cylinder 204 and the stirring and processing frame 205 drive the elemental boron material to rotate and turn the material. When the temperature rises to 300°C, a small amount of chlorine is injected into the electric heating fixed barrel 201 through the fixed air pump 224, the injection pipe rack 223 and the intake pipe rack 206, and the temperature continues to rise. When the temperature rises to 650°C, a large amount of chlorine begins to be introduced, and the temperature is stabilized between 650°C and 750°C. At this time, through continuous turning, the elemental boron material is evenly heated and fully contacted with the chlorine to generate boron trichloride;

[0064] Boron trichloride is driven by the processing tube rack 214, the exhaust tube rack 207, the fixed air pipe 208 and the accelerating fan 219 to enter the inner side of the feed fixed barrel 209 along the exhaust tube rack 207 and the fixed air pipe 208, and the temperature of the gas is reduced by the low-temperature elemental boron material in the feed fixed barrel 209 to achieve preheating treatment of the elemental boron material, so that the internal temperature can be prevented from being interrupted due to a rapid drop in the reaction during subsequent feeding, and the heat is recovered to reduce the gas temperature, and then the gas is passed to the inner bottom of the double-layer cooling barrel 215 by the processing tube rack 214;

[0065] The temperature of the gas is lowered by the condenser 216 and the heat exchange fixed plate 217 to zero degrees, so that the gas is condensed into liquid, and then the air at the position of the heat exchange fixed plate 217 is driven by the U-shaped circulation pipe 218 and the acceleration fan 219 to circulate and flow, and the ventilation operation is performed, so as to balance the internal heat and ensure the uniformity of the overall temperature, so that the overall synchronous operation can be performed during cooling. At this time, the residual chlorine is still gas, and the chlorine moves from bottom to top during the continuous gas injection process, and finally returns to the position of the intake pipe rack 206 through the reflux fixed pipe 220 and the injection pipe rack 223, so that the chlorine is separated and recycled, and the preparation of boron trichloride is realized;

[0066] During the preparation process, the swing motor 306 drives the operation fixed block 301 and the positioning operation frame 1 to rotate along the operation positioning plate 303. At this time, the fixed support block 302 is driven to rotate synchronously, and the combined positioning sleeve 305 drives the limiting spring 304 to press down to support and fix the equipment. By driving the overall swing of the equipment, the raw materials and finished products inside can be fully in contact, accelerating the speed of heating and cooling;

[0067] Insert the combined mounting frame 308 into the inner side of the combined mounting groove 307, thereby fixing the storage fixed tank 309 to the top of the operating positioning plate 303, insert the discharge operating pipe 312 into the inner side of the combined threaded pipe 310, and connect it to the combined threaded pipe 310 by threaded fixing through the closed threaded pipe 314, open the control valve 315 located at the position of the discharge operating pipe 312, and extract the boron trichloride liquid in the double-layer cooling barrel 215 into the inner side of the storage fixed tank 309 by the extraction pump 313 and the discharge operating pipe 312, and control the liquid inlet of the discharge operating pipe 312 by the check valve 311 to avoid the overflow of boron trichloride, thereby completing the discharge, and through multi-stage combined operation, the replacement of the storage device can be completed quickly, ensuring the rapid and stable storage and collection.

[0068] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for preparing boron trichloride gas, comprising a positioning operating frame (1), Features: A processing component (2) is arranged inside the positioning operation frame (1); The processing component (2) comprises an electric heating fixing barrel (201); The middle part of the inner side of the positioning operation frame (1) is fixedly connected to an electric heating fixed barrel (201); a transmission motor (202) is installed at one end of the electric heating fixed barrel (201) through a motor seat; a double-shaft motor (203) is installed at the other end of the electric heating fixed barrel (201) through a motor seat; one end of one output shaft of the double-shaft motor (203) is clamped with a storage turning barrel (204); a stirring processing frame (205) is clamped at the position of the output shaft of the transmission motor (202) corresponding to the storage turning barrel (204); an air intake pipe frame (206) is penetrated and connected to one end of the electric heating fixed barrel (201); The other end of the fixed barrel (201) is connected with an exhaust pipe rack (207), and fixed air pipes (208) are connected to both sides of one end of the exhaust pipe rack (207) through adapters. One end of the two fixed air pipes (208) is connected with a feed fixed barrel (209), and a stirring and separating rack (210) is rotatably connected inside the feed fixed barrel (209). A chain transmission box (211) is connected to the top of the feed fixed barrel (209) at a position corresponding to the stirring and separating rack (210), and a reversing transmission box (212) is connected to the side end of the electric heating fixed barrel (201) at a position corresponding to the dual-axis motor (203); The top of the fixed feed barrel (209) is connected with a fixed feed pipe (213), the side of the fixed feed barrel (209) is connected with a processing pipe rack (214), the top of the side of the positioning operation frame (1) is clamped with a double-layer cooling barrel (215), the inner side of the double-layer cooling barrel (215) is sleeved with a condenser (216), the side of the double-layer cooling barrel (215) is clamped with a heat exchange fixing plate (217) at the position corresponding to the condenser (216), the side of the double-layer cooling barrel (215) is equidistantly connected with a U-shaped circulation pipe (218), the processing pipe rack (214) and the U-shaped circulation pipe (216) are connected. 18) The side ends are embedded with acceleration fans (219), the top of the side end of the double-layer cooling barrel (215) is connected with a reflux fixed pipe (220), the bottom of the feed fixed barrel (209) is connected with a discharge fixed pipe (221), one end of the feed fixed pipe (213), the reflux fixed pipe (220) and the discharge fixed pipe (221) are embedded with a limiting valve (222), one end of the air intake pipe rack (206) is connected with an injection pipe rack (223), and one end of the positioning operation frame (1) is installed with a fixed air pump (224) at a position corresponding to the injection pipe rack (223) through a motor seat.

2. A device for preparing boron trichloride gas according to claim 1, It is characterized in that The storage turning cylinder (204) is rotatably mounted on the inner side of the electric heating fixed barrel (201), the stirring and processing frame (205) is rotatably sleeved with the storage turning cylinder (204), and the feeding fixed barrel (209) is fixedly engaged with the electric heating fixed barrel (201).

3. A device for preparing boron trichloride gas according to claim 1, It is characterized in that The top end of the stirring and separating frame (210) is snap-fitted to the output shaft of the chain transmission box (211), the output shaft of the reversing transmission box (212) is connected to the input shaft of the chain transmission box (211) via bolts, and the input shaft of the reversing transmission box (212) is sleeve-fitted to the output shaft of the dual-shaft motor (203).

4. A device for preparing boron trichloride gas according to claim 1, It is characterized in that The processing tube rack (214) is sleeved and assembled with the double-layer cooling barrel (215), and the side end of the condenser (216) is fitted with the side end of the heat exchange fixing plate (217).

5. A device for preparing boron trichloride gas according to claim 1, It is characterized in that The material discharge fixed pipe (221) is installed through the side end of the electric heating fixed barrel (201), and the return fixed pipe (220) and the injection pipe rack (223) are connected by means of an adapter.

6. A device for preparing boron trichloride gas according to claim 1, It is characterized in that The fixed air pump (224) is connected to the injection pipe rack (223) via an adapter; The input ends of the electric heating fixed barrel (201), the transmission motor (202), the dual-axis motor (203), the condenser (216), the accelerating fan (219), the limiting valve (222) and the fixed air pump (224) are all electrically connected to the output end of the external controller; The input terminal of the external controller is electrically connected to the output terminal of the external power supply.

7. A device for preparing boron trichloride gas according to claim 6, It is characterized in that A swing collection assembly (3) is provided at the bottom end of the positioning operation frame (1); The swing collection assembly (3) comprises an operating fixed block (301); An operation fixing block (301) is fixedly connected to the middle of the bottom end of the positioning operation frame (1), a fixed support block (302) is symmetrically installed at the bottom end of the positioning operation frame (1), an operation positioning plate (303) is rotatably connected to the side end of the operation fixing block (301), a plurality of limiting springs (304) are symmetrically installed at the top end of the operation positioning plate (303), a combination positioning sleeve (305) is installed at the top end of the plurality of limiting springs (304) corresponding to the position of the fixed support block (302), a swing motor (306) is installed at one end of the operation positioning plate (303) through a motor seat, and a combination installation groove (307) is symmetrically opened at the top end of the operation positioning plate (303), and the two combination installation grooves (307) is sleeved with a combined mounting frame (308), the top of the combined mounting frame (308) is fixedly connected with a storage fixed tank (309), the top of the storage fixed tank (309) is penetrated with a combined threaded pipe (310), one end of the combined threaded pipe (310) is embedded with a check valve (311), one end of the double-layer cooling barrel (215) is penetrated with a discharge operation pipe (312), one end of the positioning operating frame (1) is installed with an extraction pump (313) at a position corresponding to the discharge operation pipe (312) through a motor seat, the side end of the discharge operation pipe (312) is rotatably sleeved with a closed threaded pipe (314), and one end of the discharge operation pipe (312) is embedded with a control valve (315).

8. A device for preparing boron trichloride gas according to claim 7, It is characterized in that The combined positioning sleeve (305) is rotatably connected to the fixed support block (302), the output shaft of the swing motor (306) is engaged with one end of the operating fixed block (301), and the bottom end of the combined mounting frame (308) is in contact with the top end of the operating positioning plate (303).

9. A device for preparing boron trichloride gas according to claim 7, It is characterized in that The combined threaded tube (310) is connected to the closed threaded tube (314) by threads, one end of the extraction pump (313) is engaged with one end of the discharge operation tube (312) by means of an adapter, and the discharge operation tube (312) is inserted and installed inside the combined threaded tube (310); The input ends of the swing motor (306), the check valve (311), the extraction pump (313) and the control valve (315) are all electrically connected to the output end of the external controller.

10. A method for preparing boron trichloride gas, It is characterized in that A device for preparing boron trichloride gas according to any one of claims 1 to 7, comprising the following steps: S1. Raw material preparation: heat drying the selected elemental boron material, purifying and liquefying the selected chlorine gas, and connecting the raw materials to the feed positions respectively; S2, preheating injection: injecting inert gas into the electric heating fixed barrel (201) through the injection pipe rack (223), the fixed air pump (224) and the air intake pipe rack (206), and exhausting the internal air, and then the electric heating fixed barrel (201) heats the storage turning cylinder (204), and injecting elemental boron material into the storage turning cylinder (204), the stirring and processing rack (205) and the material discharge fixed pipe (221); S3, product preparation: the transmission motor (202) drives the stirring and processing frame (205), and the dual-axis motor (203) drives the storage and turning cylinder (204), thereby driving the elemental boron material to rotate and be heated, and the injection pipe frame (223), the fixed air pump (224) and the air intake pipe frame (206) inject chlorine gas into the electric heating fixed barrel (201), and then the swing motor (306) drives the operation fixed block (301) and the positioning operation frame (1) to swing, and high temperature and continuous turning contact are used to achieve the preparation of boron trichloride; S4, condensation recovery: Boron trichloride is cooled by a double-layer cooling barrel (215), a condenser (216), and a heat exchange fixed plate (217), and the boron trichloride condensed into liquid is recovered by a discharge operation pipe (312), an extraction pump (313), a storage fixed tank (309), and a combined threaded pipe (310), thereby completing the storage of the product.

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