A purification device for a process for purifying ethoxy pentafluorocyclotriphosphazene

Abstract

The application belongs to the technical field of ethoxy pentafluorocyclotriphosphazene preparation, in particular to a purification equipment for ethoxy pentafluorocyclotriphosphazene purification process, which comprises a tee joint pipe, a sampling slide column and a sampling channel; the ethoxy pentafluorocyclotriphosphazene product is purified through the tee joint pipe; when sampling is needed, the lifting unit drives the sleeve to slide upward along the channel, pushes the sampling slide column to slide into the horizontal pipe of the tee joint pipe from the longitudinal pipe of the tee joint pipe, makes the inlet at the top of the sampling channel face the direction of the rectifying column, and makes a small amount of ethoxy pentafluorocyclotriphosphazene product be branched into the sampling channel of the sampling slide column when the ethoxy pentafluorocyclotriphosphazene product is discharged through the horizontal pipe of the tee joint pipe, and then is transported to the storage unit through the No.1 hose and the No.2 hose for storage; the staff controls the sampling time and frequency, and samples at the front, middle and tail sections of the purification process, thereby improving the accuracy of the detection result.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of ethoxy pentafluorocyclotriphosphazene preparation, and particularly relates to a purification device for ethoxy pentafluorocyclotriphosphazene purification process. BACKGROUND

[0002] Ethoxy pentafluorocyclotriphosphazene is an organic phosphorus compound containing an ethoxy group and a pentafluorocyclotriphosphazene group in its chemical structure, has strong reactivity and diversified application fields, has good solubility and stability, can be dissolved in many organic solvents, is not easy to be oxidized and hydrolyzed, can be used as a strong acid catalyst in organic synthesis to promote many organic reactions, and has excellent flame retardant performance.

[0003] Ethoxy pentafluorocyclotriphosphazene is mainly prepared by two methods; one preparation method is to prepare ethoxy pentafluorocyclotriphosphazene by reacting pentafluorocyclotriphosphazene and ethanol, mix pentafluorocyclotriphosphazene and ethanol according to a certain molar ratio, stir and heat the mixture at a proper temperature, separate the product ethoxy pentafluorocyclotriphosphazene by filtration or distillation after the reaction is completed; another preparation method is to prepare ethoxy pentafluorocyclotriphosphazene by reacting pentafluorocyclotriphosphazene and ethanol with an acid catalyst, mix pentafluorocyclotriphosphazene and ethanol according to a certain molar ratio, add an appropriate amount of ethanol acid catalyst to promote the reaction, stir and heat the mixture at a proper temperature, separate the product ethoxy pentafluorocyclotriphosphazene by filtration or distillation after the reaction is completed.

[0004] No matter which method is used to prepare ethoxy pentafluorocyclotriphosphazene, the product ultimately needs to be rectified by using a rectifying tower to improve the purity of the ethoxy pentafluorocyclotriphosphazene product; in the purification process, in order to determine the purification effect and purity, the staff needs to take samples and analyze them by nuclear magnetic resonance and other types of spectrum testing to determine the impurity composition and purity of the sample; however, the staff is difficult to accurately sample the front, middle and tail sections of the purification process, so that the detection structure cannot accurately reflect the purification effect.

[0005] Therefore, the application provides a purification device for ethoxy pentafluorocyclotriphosphazene purification process. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background art.

[0007] The technical scheme adopted by the present application to solve its technical problems is: the ethoxy pentafluoro cyclotriphosphazene purification process uses a purification device, which comprises a rectifying tower; a sampling structure is connected to the outlet end of the rectifying tower; the sampling structure comprises a tee pipe; the tee pipe is in communication with a horizontal pipe and a vertical pipe; the inlet end of the tee pipe is in communication with the outlet end of the rectifying tower; a plurality of through grooves are uniformly formed in the outer circle of the vertical pipe of the tee pipe; a sampling slide column is slidably installed in the inner circle of the vertical pipe of the tee pipe; a sampling channel is formed in the inside of the sampling slide column; the top end of the sampling channel penetrates through the sampling slide column and is close to one side of the rectifying tower; a connecting flange is fixedly connected to the bottom of the vertical pipe of the tee pipe; a No. 1 hose is fixedly connected between the bottom of the sampling slide column and the top of the connecting flange; a sleeve is slidably installed in the outer circle of the vertical pipe of the tee pipe; a connecting protrusion is fixedly connected to the top inner circle of the sleeve; the connecting protrusion of the inner circle of the sleeve slidably penetrates through the through groove, and the connecting protrusion of the inner circle of the sleeve is fixedly connected to the bottom outer circle of the sampling slide column; a lifting unit is arranged on the outside of the tee pipe, and the lifting unit drives the sleeve to lift; a storage unit is arranged at the bottom end of the tee pipe; the bottom end of the connecting flange and the storage unit are in communication through a No. 2 hose; the worker controls the sampling time and frequency, and samples at the front, middle and tail sections of the purification process, thereby improving the accuracy of the detection results.

[0008] Preferably, the lifting unit comprises a mounting bracket; the mounting bracket is fixedly connected to the outer wall of the tee pipe; a motor is fixedly connected to the bottom of the mounting bracket; a rotating shaft of the motor is fixedly connected with a gear; the outer wall of the sleeve is fixedly connected with a rack; the gear is engaged with the rack; thereby controlling the sampling time and frequency of the sampling slide column.

[0009] Preferably, the top surface of the sampling channel is provided with a sliding hole; a No. 1 magnetic block is slidably installed inside; a sealing plate is fixedly connected to the bottom of the No. 1 magnetic block through bolts; the side close to the inlet of the sampling channel of the sealing plate has elasticity; the bottom surface of the sealing plate can seal the top surface of the vertical channel of the sampling channel; the bottom surface of the sealing plate is fixedly connected with an elastic diaphragm; the outer circle of the elastic diaphragm can be in extrusion contact with the inner circle of the vertical channel of the sampling channel; a fixing hole is formed in the middle top surface of the horizontal pipe of the tee pipe; a No. 2 magnetic block is installed in the inside of the fixing hole; the No. 2 magnetic block is attracted to the No. 1 magnetic block; the sealing plate seals and blocks the inlet of the sampling channel, at the same time, the elastic diaphragm is inserted into the inside of the sampling channel, further sealing and blocking the sampling channel, thereby blocking the ethoxy pentafluoro cyclotriphosphazene product from entering the sampling channel, and ensuring that the ethoxy pentafluoro cyclotriphosphazene product can be smoothly discharged; the sealing plate and the elastic diaphragm move upward, thereby exposing the sampling channel for sampling work.

[0010] Preferably, the storage unit comprises a storage box; the top surface and one side surface of the storage box are provided with openings; the inside of the storage box is uniformly provided with a plurality of storage tanks; the top of the storage tank is open; the top of the storage box is fixedly connected with linear slide rails on both sides; two electric slides are arranged on each linear slide rail; a pair of electric slides corresponding to each other on the linear slide rails on both sides are provided with a material injection assembly on the top; another pair of electric slides corresponding to each other on the linear slide rails on both sides are provided with a plugging assembly on the top; thereby facilitating the sampling detection and transportation of the staff.

[0011] Preferably, the material injection assembly comprises a first connecting plate; a pair of electric slides corresponding to each other on the linear slide rails on both sides are fixedly connected with a first connecting plate on the top; a lifting column is slidably installed in the middle of the first connecting plate; the bottom of the lifting column is a truncated cone; the bottom outer ring of the lifting column can be in sliding contact with the top inner wall of the storage tank; a first hydraulic cylinder is fixedly connected on both sides of the top surface of the first connecting plate; the top of the piston rod of the first hydraulic cylinder is fixedly connected with the top of the lifting column; a material injection pipe is installed through the middle of the lifting column; the top of the material injection pipe is in communication with the bottom of the connecting flange through a second hose; an air extraction cavity is formed in the bottom of the lifting column; a plurality of air vents are uniformly formed in the bottom of the air extraction cavity; an air extraction pump is fixedly connected to the top of the first connecting plate; the air extraction end of the air extraction pump is in communication with the air extraction cavity; thereby completing the sampling and storage of the ethoxy pentafluorocyclotriphosphazene sample, and reducing the probability of leakage of the ethoxy pentafluorocyclotriphosphazene sample.

[0012] Preferably, the bottom outer ring of the material injection pipe is sleeved with a blocking ring plate; a plurality of air holes are uniformly formed in the blocking ring plate; the inner ring of the top surface of the blocking ring plate and the bottom surface of the lifting column are fixedly connected through a plurality of vertical rods; the ethoxy pentafluorocyclotriphosphazene sample in the storage tank is blocked, reducing the probability of the ethoxy pentafluorocyclotriphosphazene sample entering the inside of the air extraction cavity.

[0013] Preferably, the top of the material injection pipe is funnel-shaped; a fan blade is rotatably installed in the inner ring of the top of the material injection pipe; the bottom of the fan blade is fixedly connected with a rotating rod; the rotating rod penetrates the material injection pipe; a plurality of spiral blades are uniformly fixedly connected to the outer ring of the rotating rod; the ethoxy pentafluorocyclotriphosphazene sample is blocked by the spiral blades to reduce the impact force, so that the ethoxy pentafluorocyclotriphosphazene sample is slowly transported into the storage tank, reducing the probability of splashing of the ethoxy pentafluorocyclotriphosphazene sample in the storage tank.

[0014] Preferably, the plugging assembly comprises a second connecting support plate, a second pair of electric sliding blocks on the opposite sides of the linear sliding rail are fixedly connected with the second connecting support plate at the top, a feeding box is fixedly connected to the top surface of the second connecting support plate, a discharging port of the feeding box penetrates the middle part of the second connecting support plate, a discharging push rod is slidably installed in the discharging port of the feeding box, an adjusting screw is fixedly connected to the middle part of the discharging push rod, a connecting plate is slidably installed on the adjusting screw, nuts are arranged on the top surface and the bottom surface of the connecting plate and are in threaded connection with the adjusting screw, a second hydraulic cylinder is fixedly connected between the connecting plate and the second connecting support plate, guide strips are fixedly connected to the two sides of the feeding box, sealing plugs are uniformly arranged in the feeding box, the top surface of the sealing plug is in sliding connection with the bottom surface of the guide strip, a push plate is slidably installed in the feeding box, springs are fixedly connected between the side, away from the discharging port, of the feeding box and the push plate, and the opening of the storage tank is plugged and sealed, so that the leakage probability of the ethoxy pentafluorocyclotriphosphazene sample is reduced, and the storage tank is convenient for workers to take out and transport.

[0015] Preferably, the side opening of the storage box is inserted with a cover plate, a plurality of pairs of installation grooves are uniformly formed in the cover plate, a U-shaped clamp is mounted on the side of the cover plate close to the inside of the storage box, the U-shaped clamp is elastic, a pair of fixing screws are fixedly connected to the side of the U-shaped clamp close to the cover plate, the fixing screws slidably penetrate the installation grooves, and the fixing screws are fixed to the cover plate through nuts, the U-shaped clamp clamps the storage tank, and a plurality of positioning blocks are fixedly connected to the side of the inner wall of the storage tank away from the cover plate, the positioning blocks correspond to the U-shaped clamp, so that workers can conveniently install and take out the storage tank.

[0016] Preferably, a convex column is fixedly connected to the middle part of the bottom surface of the storage tank, a plurality of Y-shaped clamping plates are uniformly fixedly connected to the bottom of the side of the cover plate close to the inside of the storage box, and the Y-shaped clamping plates can be in sliding connection with the convex column on the bottom surface of the storage tank, so that the probability of downward sliding of the storage tank during sampling is reduced, and the safety of sampling is improved.

[0017] The beneficial effects of the application are as follows:

[0018] 1. The ethoxy five fluorine cyclo-triphosphazene purification process with the purification equipment of the application, by setting the three-way connector, the sampling slide column and the sampling channel; after the ethoxy five fluorine cyclo-triphosphazene product is purified, the product will pass through the three-way connector when outputting the rectifying tower; when sampling is needed, the lifting unit drives the sleeve to slide upwards along the channel, pushes the sampling slide column to slide into the horizontal pipe of the three-way connector from the longitudinal pipe of the three-way connector, makes the inlet at the top of the sampling channel face the direction of the rectifying tower, so that when the ethoxy five fluorine cyclo-triphosphazene product is discharged through the horizontal pipe of the three-way connector, a small amount of ethoxy five fluorine cyclo-triphosphazene product is branched into the sampling channel of the sampling slide column, and then is conveyed to the storage unit through the No. 1 hose and the No. 2 hose for storage; the working personnel controls the sampling time and frequency, and respectively samples at the front, middle and tail sections of the purification process, so as to improve the accuracy of the detection result.

[0019] 2. The ethoxy five fluorine cyclo-triphosphazene purification process with the purification equipment of the application, by setting the storage box, the storage tank, the linear slide rail, the injection assembly and the plugging assembly; the injection assembly and the plugging assembly are moved through the linear slide rail, the ethoxy five fluorine cyclo-triphosphazene sample is conveyed to the injection assembly through the No. 2 hose, and then is injected into the storage tank in the storage box by the injection assembly, and then the storage tank is sealed by the plugging assembly, so as to facilitate the sampling detection and transportation of the working personnel. BRIEF DESCRIPTION OF DRAWINGS

[0020] The application will be further described below in combination with the drawings.

[0021] Figure 1 is the perspective view of the application;

[0022] Figure 2 is the perspective view of the sampling structure in the application;

[0023] Figure 3 is the exploded view of the three-way connector in the application;

[0024] Figure 4 is the sectional view of the three-way connector in the application;

[0025] Figure 5 is Figure 4 is the local enlarged view of A in the application;

[0026] Figure 6 is the structure view of the sealing plate in the application;

[0027] Figure 7 is the structure view of the sampling slide column in the application;

[0028] Figure 8 is the exploded view of the storage unit in the application;

[0029] Figure 9is the sectional view of the injection assembly in the application;

[0030] Figure 10 is the sectional view of the lifting column in the application;

[0031] Figure 11 is the exploded view of the plugging assembly in the application;

[0032] Figure 12 is the sectional view of the plugging assembly in the application;

[0033] Figure 13 is the structural view of the cover plate in the application;

[0034] Figure 14 is the structural view of the U-shaped clamp and Y-shaped clamp plate in the application;

[0035] In the figure: 1, rectifying tower; 2, three-way connector; 3, through groove; 4, sampling slide column; 5, sampling channel; 6, connecting flange; 7, No. 1 hose; 8, sleeve; 9, No. 2 hose; 10, mounting frame; 11, motor; 12, gear; 13, rack; 14, slide hole; 15, No. 1 magnetic block; 16, sealing plate; 17, elastic diaphragm; 18, fixing hole; 19, No. 2 magnetic block; 20, storage box; 21, storage tank; 22, straight line slide rail; 23, No. 1 connecting support plate; 24, lifting column; 25, No. 1 hydraulic cylinder; 26, injection pipe; 27, air extraction cavity; 28, air extraction pump; 29, blocking ring plate; 30, fan blade; 31, rotating rod; 32, spiral blade; 33, No. 2 connecting support plate; 34, feeding box; 35, discharging push rod; 36, adjusting screw; 37, connecting plate; 38, No. 2 hydraulic cylinder; 39, guide bar; 40, sealing plug; 41, push plate; 42, spring; 43, cover plate; 44, mounting groove; 45, U-shaped clamp; 46, fixing screw; 47, positioning block; 48, Y-shaped clamp plate. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, purposes and effects realized by the application easy to understand, the application is further described below in combination with specific embodiments.

[0037] As Figures 1 to 4As shown, the ethoxy pentafluorocyclotriphosphazene purification process and purification equipment, including rectifying tower 1; The outlet end of the rectifying tower 1 is connected with the sampling structure; The sampling structure includes a tee pipe 2; The tee pipe 2 is communicated by a horizontal pipe and a vertical pipe; The inlet end of the tee pipe 2 is communicated with the outlet end of the rectifying tower 1; A plurality of through grooves 3 are uniformly arranged on the outer circle of the vertical pipe of the tee pipe 2; The tee pipe 2 is slidably installed with a sampling slide column 4; The inside of the sampling slide column 4 is provided with a sampling channel 5; The top end of the sampling channel 5 penetrates the sampling slide column 4 and is close to one side of the rectifying tower 1; The tee pipe 2 is fixedly connected with a connecting flange 6 at the bottom of the vertical pipe; A first hose 7 is fixedly connected between the bottom of the sampling slide column 4 and the top of the connecting flange 6; The outer circle of the vertical pipe of the tee pipe 2 is slidably installed with a sleeve 8; The top inner circle of the sleeve 8 is fixedly connected with a connecting lug; The connecting lug of the inner circle of the sleeve 8 is slidably penetrated through the through groove 3, and the connecting lug of the inner circle of the sleeve 8 is fixedly connected with the bottom outer circle of the sampling slide column 4; The outer side of the tee pipe 2 is provided with a lifting unit, and the lifting unit drives the sleeve 8 to lift; The bottom end of the tee pipe 2 is provided with a storage unit; The bottom end of the connecting flange 6 and the storage unit are communicated through a second hose 9; When working, after the preparation of ethoxy pentafluorocyclotriphosphazene is completed, the product is transported into the rectifying tower 1 for rectification and purification, so as to improve the purity of the ethoxy pentafluorocyclotriphosphazene product; After the ethoxy pentafluorocyclotriphosphazene product is purified, it is output from the rectifying tower 1, and the product passes through the tee pipe 2, at this time, the sampling slide column 4 is in the vertical pipe of the tee pipe 2, and the top of the sampling slide column 4 seals and blocks the top of the vertical pipe of the tee pipe 2, so that the ethoxy pentafluorocyclotriphosphazene product is discharged through the horizontal pipe of the tee pipe 2; When sampling is needed, the lifting unit drives the sleeve 8 to slide upward along the through groove 3, pushes the sampling slide column 4 to slide from the vertical pipe of the tee pipe 2 into the horizontal pipe of the tee pipe 2, so that the inlet at the top of the sampling channel 5 faces the direction of the rectifying tower 1, so that when the ethoxy pentafluorocyclotriphosphazene product is discharged through the horizontal pipe of the tee pipe 2, a small amount of ethoxy pentafluorocyclotriphosphazene product is diverted into the sampling channel 5 of the sampling slide column 4, and then is transported to the storage unit through the first hose 7 and the second hose 9 for storage; The worker controls the sampling time and frequency, and samples at the front, middle and tail of the purification process respectively, so as to improve the accuracy of the detection result.

[0038] As Figures 2 to 3As shown, the lifting unit comprises a mounting frame 10; the outer wall of the tee connector 2 is fixedly connected with the mounting frame 10; the bottom of the mounting frame 10 is fixedly connected with a motor 11; the rotating shaft of the motor 11 is fixedly connected with a gear 12; the outer wall of the sleeve 8 is fixedly connected with a rack 13; the gear 12 is engaged with the rack 13; during operation, the motor 11 drives the gear 12 to rotate, drives the rack 13 to slide, drives the sleeve 8 to slide along the through slot 3, and controls the sampling slide column 4 to ascend and descend along the longitudinal pipe of the tee connector 2, so that the sampling time and frequency of the sampling slide column 4 are controlled.

[0039] As shown in Figures 2 to 7 , the top surface of the sampling channel 5 is provided with a sliding hole 14; the inside is slidably connected with a first magnetic block 15; the bottom of the first magnetic block 15 is fixedly connected with a sealing plate 16 through bolts; the side of the sealing plate 16 close to the inlet of the sampling channel 5 is elastic; the bottom surface of the sealing plate 16 can seal the top surface of the vertical channel of the sampling channel 5; the bottom surface of the sealing plate 16 is fixedly connected with an elastic diaphragm 17; the outer circle of the elastic diaphragm 17 can be in extrusion contact with the inner circle of the vertical channel of the sampling channel 5; the tee connector 2 is provided with a fixing hole 18 in the top surface of the middle part of the horizontal pipe; the inside of the fixing hole 18 is provided with a second magnetic block 19; the second magnetic block 19 is attracted to the first magnetic block 15; during operation, when the sampling slide column 4 is in the longitudinal pipe of the tee connector 2, the distance between the first magnetic block 15 and the second magnetic block 19 increases, the attraction between the first magnetic block 15 and the second magnetic block 19 decreases, the first magnetic block 15 slides downward along the sliding hole 14 under the action of gravity, the sealing plate 16 seals and blocks the inlet of the sampling channel 5, at the same time, the elastic diaphragm 17 is inserted into the inside of the sampling channel 5, further seals and blocks the sampling channel 5, thereby preventing the ethoxy pentafluorocyclophosphazene product from entering the sampling channel 5, and ensuring that the ethoxy pentafluorocyclophosphazene product can be smoothly discharged; when the sampling slide column 4 slides from the longitudinal pipe of the tee connector 2 into the horizontal pipe of the tee connector 2, the first magnetic block 15 approaches the second magnetic block 19, the attraction between the first magnetic block 15 and the second magnetic block 19 increases, the first magnetic block 15 slides upward along the sliding hole 14, drives the sealing plate 16 and the elastic diaphragm 17 to move upward, and thereby exposes the sampling channel 5 for sampling work.

[0040] As shown in Figure 1 , Figure 2 , and Figure 8As shown, the storage unit includes a storage box 20; the top surface and one side surface of the storage box 20 are provided with openings; the inside of the storage box 20 is uniformly provided with a plurality of storage tanks 21; the top of the storage tank 21 is open; the top of the two sides of the storage box 20 is fixedly connected with a linear slide rail 22; two electric sliding blocks are arranged on each linear slide rail 22; a pair of electric sliding blocks corresponding to the two linear slide rails 22 on the two sides are provided with a material injection assembly on the top; another pair of electric sliding blocks corresponding to the two linear slide rails 22 on the two sides are provided with a sealing assembly on the top; in operation, the material injection assembly and the sealing assembly move through the linear slide rail 22, the ethoxy pentafluorocyclo-triphosphazene sample is transported to the material injection assembly through the No. 2 hose 9, and then injected into the storage tank 21 in the storage box 20, and then the storage tank 21 is sealed by the sealing assembly, so as to facilitate sampling detection and transportation of workers.

[0041] As Figures 8 to 10As shown, the injection assembly comprises a first connecting bracket 23; a pair of electric sliding blocks corresponding to the linear sliding rails 22 on both sides are fixed on the top of the first connecting bracket 23; a lifting column 24 is slidingly installed in the middle of the first connecting bracket 23; the bottom of the lifting column 24 is a truncated cone; the bottom outer ring of the lifting column 24 can slidingly contact with the top inner wall of the storage tank 21; a first hydraulic cylinder 25 is fixed on the top surface of the first connecting bracket 23 on both sides; the piston rod top of the first hydraulic cylinder 25 is fixed on both sides of the top of the lifting column 24; an injection pipe 26 is installed in the middle of the lifting column 24; the top of the injection pipe 26 is communicated with the bottom of the connecting flange 6 through the second hose 9; an air extraction cavity 27 is arranged in the bottom of the lifting column 24; a plurality of air vents are uniformly arranged in the bottom of the air extraction cavity 27; an air extraction pump 28 is fixed on the top of the first connecting bracket 23; the air extraction end of the air extraction pump 28 is communicated with the air extraction cavity 27; a blocking ring plate 29 is arranged on the bottom outer ring of the injection pipe 26; a plurality of air holes are uniformly arranged on the blocking ring plate 29; a plurality of vertical rods are fixed between the top inner ring of the blocking ring plate 29 and the bottom surface of the lifting column 24; the top of the injection pipe 26 is funnel-shaped; a fan blade 30 is rotatably installed in the top inner ring of the injection pipe 26; a rotating rod 31 is fixed on the bottom of the fan blade 30; the rotating rod 31 penetrates the injection pipe 26; a plurality of spiral vanes 32 are uniformly fixed on the outer ring of the rotating rod 31; during work, when sampling, the injection assembly moves through the linear sliding rails 22, so that the lifting column 24 is aligned with the storage tank 21 to be stored for the sample; the first hydraulic cylinder 25 pushes the lifting column 24 to lower the height, so that the bottom of the lifting column 24 is inserted into the opening of the storage tank 21; the bottom of the lifting column 24 contacts with the inner wall of the storage tank 21, at the same time, the bottom of the injection pipe 26 is inserted into the storage tank 21; at this time, the air extraction pump 28 extracts the air in the air extraction cavity 27, so that the negative pressure is generated in the storage tank 21; in combination with the high pressure in the three-way connector 2, when the ethoxy pentafluorocyclo-triphosphazene sample is conveyed to the injection pipe 26, the fan blade 30 is rotated, the rotating rod 31 and the spiral vanes 32 are rotated, after the ethoxy pentafluorocyclo-triphosphazene sample enters the injection pipe 26, the ethoxy pentafluorocyclo-triphosphazene sample is blocked by the spiral vanes 32 to reduce the impact force, so that the ethoxy pentafluorocyclo-triphosphazene sample is slowly conveyed to the storage tank 21, thereby reducing the probability of splashing of the ethoxy pentafluorocyclo-triphosphazene sample in the storage tank 21; at the same time, the blocking ring plate 29 is arranged to block the ethoxy pentafluorocyclo-triphosphazene sample in the storage tank 21, thereby reducing the probability of the ethoxy pentafluorocyclo-triphosphazene sample entering the air extraction cavity 27; thereby completing the sampling and storage of the ethoxy pentafluorocyclo-triphosphazene sample, and reducing the probability of leakage of the ethoxy pentafluorocyclo-triphosphazene sample.

[0042] As Figure 8 , Figure 11 and Figure 12As shown, the sealing assembly comprises a second connecting apron 33, a second connecting apron 33 is fixed on the top of the other pair of electric sliding blocks on the two sides of the linear sliding rail 22, a feeding box 34 is fixed on the top of the second connecting apron 33, the discharge port of the feeding box 34 penetrates the middle part of the second connecting apron 33, a discharge push rod 35 is slidably installed in the discharge port of the feeding box 34, an adjusting screw 36 is fixed on the middle part of the discharge push rod 35, a connecting plate 37 is slidably installed on the adjusting screw 36, nuts are arranged on the top surface and the bottom surface of the connecting plate 37 and threadedly connected with the adjusting screw 36, a second hydraulic cylinder 38 is fixed between the connecting plate 37 and the second connecting apron 33, guide strips 39 are fixed on the two sides of the inside of the feeding box 34, sealing plugs 40 are evenly arranged on the feeding box 34, the top surface of the sealing plug 40 is in sliding fit with the bottom surface of the guide strip 39, a push plate 41 is slidably installed in the feeding box 34, springs 42 are fixed between the side, away from the discharge port, of the feeding box 34 and the push plate 41, when the ethoxy pentafluorocyclophosphazene sample is stored in the storage tank 21, the feeding assembly is moved away, at this time, the sealing assembly is moved through the linear sliding rail 22, so that the discharge port of the feeding box 34 is aligned with the storage tank 21 storing the sample, the push plate 41 is pushed by the elastic force of the spring 42, and the sealing plug 40 is pushed along the guide strip 39 to the discharge port of the feeding box 34, the connecting plate 37 is driven by the second hydraulic cylinder 38 to be lowered in height, the adjusting screw 36 and the discharge push rod 35 are driven to be lowered in height, the sealing plug 40 at the discharge port of the feeding box 34 is pushed downward into the storage tank 21, the opening of the storage tank 21 is sealed, thereby reducing the probability of leakage of the ethoxy pentafluorocyclophosphazene sample and facilitating the taking and transportation of the staff.

[0043] As Figure 8 , Figure 9 , Figure 13 and Figure 14As shown, the side opening of the storage box 20 is plugged with a cover plate 43; a plurality of pairs of mounting grooves 44 are evenly provided on the cover plate 43; a U-shaped clip 45 is installed on the side of the cover plate 43 close to the inner side of the storage box 20; the U-shaped clip 45 is elastic; a pair of fixing screws 46 are fixed to the side of the U-shaped clip 45 close to the cover plate 43; the fixing screws 46 slide through the mounting grooves 44, and the fixing screws 46 are fixed to the cover plate 43 by nuts; the U-shaped clip 45 clamps the storage tank 21; a plurality of positioning blocks 47 are fixed to the side of the inner wall of the storage box 20 away from the cover plate 43; the positioning blocks 47 correspond to the U-shaped clip 45; a boss is fixed to the middle of the bottom surface of the storage tank 21; the cover plate 43 is close to the inner side of the storage box 20 A plurality of Y-shaped clamps 48 are evenly fixed to the bottom of one side; the Y-shaped clamps 48 can slide with the bosses on the bottom of the storage tank 21; during operation, when installing the storage tank 21, the storage tank 21 is clamped into the U-shaped clamp 45, and the bosses at the bottom of the storage tank 21 are clamped in the Y-shaped clamps 48, and the storage tank 21 is installed and fixed on the cover 43, and the cover 43 is inserted into the side opening of the storage box 20, so that the storage tank 21 contacts the positioning block 47, thereby fixing the storage tank 21 in the storage box 20, and the support of the Y-shaped clamps 48 reduces the probability of the storage tank 21 sliding downward during sampling, thereby improving the safety of sampling; thereby facilitating the installation and removal of the storage tank 21 by the staff.

[0044] Working principle: Insert the storage tank 21 into the U-shaped clamp 45, and make the protrusion at the bottom of the storage tank 21 stuck in the Y-shaped clamp 48, and then install and fix the storage tank 21 on the cover plate 43. Then, insert the cover plate 43 into the side opening of the storage box 20, so that the storage tank 21 contacts the positioning block 47, and the storage tank 21 is fixed in the storage box 20;

[0045] After the preparation of ethoxy pentafluorocyclotriphosphazene is completed, the product is transported to the distillation tower 1 for distillation and purification to improve the purity of the ethoxy pentafluorocyclotriphosphazene product; after the ethoxy pentafluorocyclotriphosphazene product is purified, when it is output from the distillation tower 1, the product will pass through the three-way pipe 2. At this time, the sampling slide 4 is in the longitudinal tube of the three-way pipe 2, and the top of the sampling slide 4 seals and blocks the top of the longitudinal tube of the three-way pipe 2. At the same time, the distance between the first magnetic block 15 and the second magnetic block 19 increases, so that the attraction between the first magnetic block 15 and the second magnetic block 19 is reduced. Under the action of gravity, the first magnetic block 15 slides downward along the slide hole 14, so that the sealing plate 16 seals and blocks the entrance of the sampling channel 5. At the same time, the elastic diaphragm 17 is inserted into the interior of the sampling channel 5, further sealing and blocking the sampling channel 5, so that the ethoxy pentafluorocyclotriphosphazene product is discharged through the transverse tube of the three-way pipe 2;

[0046] When sampling is needed, the motor 11 drives the gear 12 to rotate, drives the rack 13 to slide, drives the sleeve 8 to slide along the through groove 3 upward, pushes the sampling slide column 4 to slide into the transverse pipe of the tee joint pipe 2 from the longitudinal pipe of the tee joint pipe 2, the first magnetic block 15 is close to the second magnetic block 19, the attraction between the first magnetic block 15 and the second magnetic block 19 is increased, the first magnetic block 15 slides upward along the sliding hole 14, drives the sealing plate 16 and the elastic diaphragm 17 to move upward, exposes the sampling channel 5; at the same time, the feeding assembly moves through the linear slide rail 22, the lifting column 24 is aligned with the storage tank 21 to be stored, the first hydraulic cylinder 25 pushes the lifting column 24 to lower the height, the bottom of the lifting column 24 is inserted into the opening of the storage tank 21, the bottom of the lifting column 24 is in contact with the inner wall of the storage tank 21, at the same time, the bottom of the feeding pipe 26 is inserted into the storage tank 21, at this time, the air in the air extraction cavity 27 is extracted by the air pump 28, a negative pressure is generated in the storage tank 21; the ethoxy pentafluoro-cyclo-triphosphazene product is divided into the sampling channel 5 of the sampling slide column 4, is transported into the feeding pipe 26 through the first hose 7 and the second hose 9, the fan blade 30 is pushed to rotate, drives the rotating rod 31 and the spiral blade 32 to rotate, after the ethoxy pentafluoro-cyclo-triphosphazene sample enters the feeding pipe 26, the ethoxy pentafluoro-cyclo-triphosphazene sample is blocked by the spiral blade 32 to reduce the impact force, the ethoxy pentafluoro-cyclo-triphosphazene sample is slowly transported into the storage tank 21, the probability of the ethoxy pentafluoro-cyclo-triphosphazene sample splashing in the storage tank 21 is reduced; at the same time, the blocking ring plate 29 is arranged to block the ethoxy pentafluoro-cyclo-triphosphazene sample in the storage tank 21, the probability of the ethoxy pentafluoro-cyclo-triphosphazene sample entering the air extraction cavity 27 is reduced; when the ethoxy pentafluoro-cyclo-triphosphazene sample is stored in the storage tank 21, the feeding assembly moves away, at this time, the plugging assembly moves through the linear slide rail 22, the discharge port of the feeding box 34 is aligned with the storage tank 21 to store the sample, the spring 42 pushes the push plate 41 to push the sealing plug 40 along the guide strip 39 to the discharge port of the feeding box 34; the second hydraulic cylinder 38 drives the connecting plate 37 to lower the height, drives the adjusting screw 36 and the discharge push rod 35 to lower the height, pushes the sealing plug 40 at the discharge port of the feeding box 34 downward into the storage tank 21, plugs and seals the opening of the storage tank 21.

[0047] The staff controls the time and frequency of sampling, respectively samples at the front, middle and tail of the purification process, and stores the ethoxy pentafluoro-cyclo-triphosphazene sample in different storage tanks 21, thereby improving the accuracy of the detection result.

[0048] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A purification device for an ethoxypentafluorocyclotriphosphazene purification process, characterized in that: The invention comprises a distillation tower (1); the outlet end of the distillation tower (1) is connected with a sampling structure; the sampling structure comprises a three-way pipe (2); the three-way pipe (2) is composed of a horizontal pipe and a longitudinal pipe connected; the inlet end of the three-way pipe (2) is connected with the outlet end of the distillation tower (1); a plurality of through grooves (3) are evenly provided on the outer ring of the longitudinal pipe of the three-way pipe (2); a sampling slide (4) is slidably installed on the inner ring of the longitudinal pipe of the three-way pipe (2); a sampling channel (5) is provided inside the sampling slide (4); the top end of the sampling channel (5) passes through the side of the sampling slide (4) close to the distillation tower (1); a connecting flange is fixedly connected to the bottom of the longitudinal pipe of the three-way pipe (2) (6); a No. 1 hose (7) is fixedly connected between the bottom of the sampling slide (4) and the top of the connecting flange (6); a sleeve (8) is slidably installed on the outer ring of the longitudinal tube of the three-way pipe (2); a connecting protrusion is fixedly connected to the top inner ring of the sleeve (8); the connecting protrusion of the inner ring of the sleeve (8) slides through the through groove (3), and the connecting protrusion of the inner ring of the sleeve (8) is fixedly connected to the bottom outer ring of the sampling slide (4); a lifting unit is provided on the outer side of the three-way pipe (2), and the lifting unit drives the sleeve (8) to move up and down; a storage unit is provided at the bottom end of the three-way pipe (2); the bottom end of the connecting flange (6) and the storage unit are connected through a No. 2 hose (9).

2. The purification equipment for an ethoxypentafluorocyclotriphosphazene purification process according to claim 1, characterized in that: The lifting unit comprises a mounting frame (10); the outer wall of the three-way pipe (2) is fixedly connected to the mounting frame (10); the bottom of the mounting frame (10) is fixedly connected to a motor (11); the rotating shaft of the motor (11) is fixedly connected to a gear (12); the outer wall of the sleeve (8) is fixedly connected to a rack (13); the gear (12) and the rack (13) are meshed.

3. The purification equipment for the purification process of ethoxypentafluorocyclotriphosphazene according to claim 1, characterized in that: The top surface of the sampling channel (5) is provided with a sliding hole (14); a magnetic block (15) is installed on the internal sliding surface; a sealing plate (16) is fixed to the bottom of the magnetic block (15) by bolts; the side of the sealing plate (16) close to the entrance of the sampling channel (5) is elastic; the bottom surface of the sealing plate (16) can seal the top surface of the vertical channel of the sampling channel (5); an elastic diaphragm (17) is fixed to the bottom surface of the sealing plate (16); the outer ring of the elastic diaphragm (17) can be squeezed into contact with the inner ring of the vertical channel of the sampling channel (5); the three-way pipe (2) is provided with a fixing hole (18) on the top surface of the middle part of the horizontal pipe; a magnetic block (19) is installed inside the fixing hole (18); the magnetic block (19) is attracted to the magnetic block (15).

4. The purification equipment for the purification process of ethoxypentafluorocyclotriphosphazene according to claim 1, characterized in that: The storage unit comprises a storage box (20); the top surface and one side surface of the storage box (20) are both provided with openings; a plurality of storage tanks (21) are evenly arranged inside the storage box (20); the top of the storage tank (21) is open; linear slide rails (22) are fixedly connected to both sides of the top of the storage box (20); two electric sliders are provided on each of the linear slide rails (22); a material injection assembly is provided on the top of a pair of corresponding electric sliders on the linear slide rails (22) on both sides; a blocking assembly is provided on the top of another pair of corresponding electric sliders on the linear slide rails (22) on both sides.

5. The purification equipment for the purification process of ethoxypentafluorocyclotriphosphazene according to claim 4, characterized in that: The injection assembly includes a No. 1 connecting support plate (23); a pair of electric sliders corresponding to the linear slide rails (22) on both sides are fixedly connected to the No. 1 connecting support plate (23); a lifting column (24) is slidably mounted in the middle of the No. 1 connecting support plate (23); the bottom of the lifting column (24) is frustum-shaped; the bottom outer ring of the lifting column (24) can be in sliding contact with the top inner wall of the storage tank (21); both sides of the top surface of the No. 1 connecting support plate (23) are fixedly connected to the No. 1 hydraulic cylinder (25); the No. 1 hydraulic cylinder (25) The top of the piston rod is fixedly connected to both sides of the top of the lifting column (24); a material injection pipe (26) is installed through the middle of the lifting column (24); the top of the material injection pipe (26) is connected to the bottom of the connecting flange (6) through a No. 2 hose (9); an air extraction chamber (27) is provided at the bottom of the lifting column (24); a plurality of ventilation grooves are evenly provided at the bottom of the air extraction chamber (27); an air extraction pump (28) is fixedly connected to the top of the No. 1 connecting support plate (23); the air extraction end pipeline of the air extraction pump (28) is connected to the air extraction chamber (27).

6. The purification equipment for the purification process of ethoxypentafluorocyclotriphosphazene according to claim 5, characterized in that: The outer ring of the bottom of the injection tube (26) is provided with a blocking ring plate (29); a plurality of vent holes are evenly opened on the blocking ring plate (29); the inner ring of the top surface of the blocking ring plate (29) and the bottom surface of the lifting column (24) are fixedly connected through a plurality of vertical rods.

7. The purification equipment for the purification process of ethoxypentafluorocyclotriphosphazene according to claim 5, characterized in that: The top of the injection tube (26) is funnel-shaped; a fan blade (30) is rotatably mounted on the inner ring of the top of the injection tube (26); a rotating rod (31) is fixedly connected to the bottom of the fan blade (30); the rotating rod (31) passes through the injection tube (26); and a plurality of spiral blades (32) are evenly fixedly connected to the outer ring of the rotating rod (31).

8. The purification equipment for the purification process of ethoxypentafluorocyclotriphosphazene according to claim 4, characterized in that: The blocking assembly includes a No. 2 connecting support plate (33); a No. 2 connecting support plate (33) is fixedly connected to the top of another pair of electric sliders corresponding to the linear slide rails (22) on both sides; a feeding box (34) is fixedly connected to the top surface of the No. 2 connecting support plate (33); a feeding port of the feeding box (34) passes through the middle of the No. 2 connecting support plate (33); a feeding push rod (35) is slidably installed inside the feeding port of the feeding box (34); an adjusting screw (36) is fixedly connected to the middle of the feeding push rod (35); a connecting plate (37) is slidably installed on the adjusting screw (36); the connecting plate (37) The top and bottom surfaces are both provided with nuts, and the nuts are threadedly engaged with the adjusting screw (36); a No. 2 hydraulic cylinder (38) is fixedly connected between the connecting plate (37) and the No. 2 connecting support plate (33); guide strips (39) are fixedly connected to both sides of the interior of the feeding box (34); sealing plugs (40) are evenly placed on the feeding box (34); the top surface of the sealing plug (40) is slidably engaged with the bottom surface of the guide strip (39); a push plate (41) is slidably installed inside the feeding box (34); a spring (42) is fixedly connected between the side of the feeding box (34) away from the discharge port and the push plate (41).

9. The purification equipment for the purification process of ethoxypentafluorocyclotriphosphazene according to claim 4, characterized in that: The side opening of the storage box (20) is plugged with a cover plate (43); a plurality of pairs of mounting grooves (44) are evenly arranged on the cover plate (43); a U-shaped clip (45) is installed on a side of the cover plate (43) close to the inner side of the storage box (20); the U-shaped clip (45) is elastic; a pair of fixing screws (46) are fixedly connected to a side of the U-shaped clip (45) close to the cover plate (43); the fixing screws (46) slide through the mounting grooves (44), and the fixing screws (46) are fixed to the cover plate (43) by nuts; the U-shaped clip (45) clamps the storage tank (21); a plurality of positioning blocks (47) are fixedly connected to a side of the inner wall of the storage box (20) away from the cover plate (43); the positioning blocks (47) correspond to the U-shaped clip (45).

10. The purification equipment for the purification process of ethoxypentafluorocyclotriphosphazene according to claim 9, characterized in that: A convex column is fixedly connected to the middle of the bottom surface of the storage tank (21); a plurality of Y-shaped clamping plates (48) are evenly fixedly connected to the bottom of one side of the cover plate (43) close to the inner side of the storage box (20); the Y-shaped clamping plates (48) can be slidably matched with the convex column on the bottom surface of the storage tank (21).

Images