Quantitative proportioning and mixing device for perfluorohexanone fire extinguishing material and material

Abstract

The invention relates to the technical field of material forming, and particularly discloses a quantitative proportioning and mixing device for a perfluorohexanone fire extinguishing material and a material, the quantitative proportioning and mixing device comprises a stirring tank, and further comprises a stirring mechanism arranged in the stirring tank; the screening mechanism is arranged on one side of the stirring tank; the lifting mechanism is arranged at the top of the stirring tank; through the arrangement of an eccentric block and an eccentric disc, when a stirring column rotates, a rotating center can be replaced through the eccentric disc, so that a scraping plate on the stirring column is driven to be attached to a stirring tank for cleaning and stirring, meanwhile, according to the arrangement of a spline shaft, the effect of moving up and down can be achieved in the rotating process, and through the arrangement of a lifting screw rod in a lifting bin, the stirring efficiency is improved. According to the stirring device, the spline shaft can be intermittently driven to move up and down while the spline shaft rotates, so that perfluoroethanone in the stirring tank is effectively dispersed, meanwhile, materials can be prevented from being adhered to the inner wall, and later cleaning is facilitated.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of material forming, in particular to a quantitative proportioning and mixing device for perfluorohexanone fire extinguishing material and the material. BACKGROUND

[0002] The perfluorohexanone fire extinguishing material is a high-efficiency environmentally-friendly extinguishing agent taking perfluorohexanone as a core extinguishing component, has the characteristics of high extinguishing efficiency, high environmental protection and high safety, and is widely applied to scenes such as power distribution rooms, energy storage power stations, data centers, aerospace equipment and precision instruments which have high requirements on extinguishing efficiency and environmental protection.

[0003] When the perfluorohexanone fire extinguishing material is mixed, perfluorohexanone and raw materials such as silicon dioxide are added into a stirring tank, then stirred for a certain time to form a core material, then a mixed solution such as modified guar gum is added into the core material, and at the same time, oscillation is carried out, so that the shell material is combined with the core material closely, and finally a curing agent and other materials are added to carry out stirring to make them solidify.

[0004] In the prior art, the stirring device mostly depends on a single stirring mode, and it is difficult to break the agglomeration phenomenon of the carrier material. For solid preparations, nano-silicon dioxide is prone to stubborn agglomerates of particle size due to its large specific surface area, and conventional stirring cannot effectively disperse them, resulting in uneven local concentration of the perfluorohexanone main agent after mixing with the carrier. At the same time, the materials adhered to the inner wall of the tank cannot be effectively cleaned after the stirring work is completed. In addition, the process adaptability is poor, and the carrier lacks cooperative work. Because the perfluorohexanone fire extinguishing material has very high requirements on the materials, the silicon dioxide cannot be effectively screened and impurities removed before being fed, which finally leads to the loss of control of the proportioning precision of the perfluorohexanone fire extinguishing material. SUMMARY

[0005] The application aims to provide a quantitative proportioning and mixing device for perfluorohexanone fire extinguishing material and the material.

[0006] The purpose of the application can be achieved by the following technical solutions. A quantitative proportioning and mixing device for perfluorohexanone fire extinguishing material, comprising a stirring tank, and further comprising: a stirring mechanism arranged in the stirring tank; a screening mechanism arranged on one side of the stirring tank; a lifting mechanism arranged on the top of the stirring tank; The pretreated perfluorohexanone is injected into the stirring tank, and then the stirring mechanism is driven to stir the perfluorohexanone. At the same time, the silicon dioxide particles are added into the screening mechanism, the silicon dioxide is screened through the screening mechanism, and then the screened silicon dioxide is added into the stirring tank to be stirred together with the perfluorohexanone.

[0007] Further, the stirring tank is fixedly connected with an upper disc and a lower disc; the stirring mechanism comprises a spline sleeve shaft and an eccentric disc; the eccentric disc is located between the upper disc and the lower disc and is rotationally connected therewith; the spline sleeve shaft is rotationally connected in the middle of the stirring tank; the spline sleeve shaft is slidably connected with a spline shaft; the spline shaft is in meshing connection with the spline sleeve shaft; the bottom of the spline shaft is fixedly connected with an eccentric block; the middle of the eccentric block is provided with an eccentric groove; the middle of the eccentric disc is provided with a connecting groove; the connecting groove is fixedly connected with a connecting block; the connecting block is slidably arranged in the eccentric groove; the bottom of the eccentric disc is fixedly connected with a connecting rod; the end of the connecting rod away from the eccentric disc is fixedly connected with a stirring column; the stirring column is fixedly connected with a scraper and a stirring plate; the lifting mechanism comprises a lifting bin; the lifting bin is rotationally connected with a lifting lead screw; the lifting lead screw is threadedly connected with a lifting disc; the lifting disc is rotationally connected with the spline shaft; the lifting bin is fixedly connected with the stirring tank.

[0008] Further, the screening mechanism comprises a screening base and a screening bin; the screening bin is rotationally provided with a screening plate one; the screening bin is provided with two groups of screening plates; the screening bin is fixedly connected with a collecting disc; one end of the collecting disc is provided with an expansion groove; the expansion groove is fixedly connected with an expansion spring one; the end of the expansion spring one away from the expansion groove is fixedly connected with a pressing block; the pressing block is movably abutted with the screening plate one; the sidewall of the collecting disc is fixedly connected with a pressing plate; the pressing plate is fixedly connected with an expansion spring two; the end of the expansion spring two away from the pressing plate is fixedly connected with the screening plate one; the collecting disc is provided with two groups of collecting discs and is located below the screening plate one; the sidewall of the screening bin is fixedly connected with a screening plate two; the outer wall of the screening bin is fixedly connected with a conveying pipe; the conveying pipe is located below the screening plate two; the conveying pipe is fixedly connected with a quantitative pump; the end of the conveying pipe away from the screening bin is movably connected with the stirring tank; the end of the lifting disc away from the spline shaft is fixedly connected with a lifting arm; the bottom of the lifting arm is fixedly connected with an expansion column; the expansion column is spring-connected with a connecting arm; the end of the connecting arm away from the expansion column is fixedly connected with the sidewall of the screening plate one; the sidewall of the screening bin is rotationally connected with a moving lead screw; the moving lead screw is threadedly connected with a moving plate; the moving plate is abutted with the surface of the screening plate two; the sidewall of the screening bin is fixedly connected with a moving motor; the moving lead screw is driven by the moving motor.

[0009] Further, the upper disc is fixedly connected with a blocking wall; the inner wall of the stirring tank is fixedly connected with a blocking strip one and a blocking strip two; the blocking strip one and the blocking strip two are arranged above the upper disc; the sidewall of the stirring tank is provided with an inlet hole; the end of the conveying pipe away from the screening bin is connected with the inlet hole; the inlet hole is located above the blocking strip two; the upper disc is provided with an annular groove; the lower disc is provided with a discharging hole.

[0010] Further, the stirring mechanism further comprises a driving shaft; the driving shaft is rotationally connected to the top of the stirring tank; the end of the driving shaft away from the stirring tank is fixedly connected with a driving motor; the driving shaft is fixedly connected with a driving gear; the spline sleeve shaft is fixedly connected with a connecting gear tooth; the driving gear is meshingly connected with the connecting gear tooth; the stirring tank is rotationally connected with a driven column; the driven column is fixedly connected with a driven gear and a half gear; the driven gear is meshingly connected with the connecting gear tooth; the bottom of the lifting bin is rotationally connected with a lifting gear; the output end of the lifting gear is fixedly connected with the input end of the lifting lead screw; the half gear is meshingly connected with the lifting gear.

[0011] Further, the bottom of the screening bin is fixedly connected with a fixing arm; the end of the fixing arm away from the screening bin is fixedly connected with the stirring tank.

[0012] Further, the side wall of the screening bin is fixedly connected with a discharge port; the discharge port is provided with multiple groups; the top of the screening bin is fixedly connected with a feeding pipe.

[0013] Further, the bottom of the screening base is fixedly connected with a vibrating machine; the end of the vibrating machine away from the screening base is fixedly connected with the screening bin.

[0014] A perfluorohexanone fire extinguishing material, and a processing method thereof, the processing method comprising the following steps: Raw material preparation and pretreatment → core material premixing → shell material coating → curing, shaping and post-treatment; In the raw material preparation and pretreatment step, an industrial-grade perfluorohexanone with a purity of ≥ 99.5% is selected, impurities are removed by filtration, and then the perfluorohexanone is injected into a low-temperature storage tank for preservation; The silicon dioxide is first vacuum dried, then high-speed deagglomerated, and finally filtered for use; The modified guar gum and the acrylic resin are dissolved in anhydrous ethanol, filtered after stirring and dissolving, and the curing agent and the trigger agent are respectively prepared into ethanol solutions; In the core material premixing step, the perfluorohexanone is injected into a stirring tank and stirring is started, and the treated silicon dioxide is added; The stirring and filtering treatment step uses the above-mentioned quantitative proportioning mixing device for perfluorohexanone fire extinguishing material, which is used for the preparation of the fire extinguishing material: The stirring and filtering treatment method is as follows: the vacuum-dried silicon dioxide is placed in the screening bin, and screening work is performed by the screening plate 1 and the screening plate 2 in the screening bin, the screened silicon dioxide is quantitatively delivered to the stirring tank by the conveying pipe and the quantitative pump, and then the eccentric disc in the stirring tank is driven to rotate, so that the eccentric disc drives the lower stirring column to rotate, and the perfluorohexanone and the silicon dioxide are mixed; In the shell material coating treatment step, the core material is transferred to an ultrasonic dispersion tank, and ultrasonic stirring is started to complete the shell material coating; The solidification setting and post-processing step: adding a curing agent solution into the coating liquid, and then stirring and heating, so that the shell material is cross-linked and solidified; adding a trigger solution, stirring, and then centrifugal separation, collecting the microcapsule particles, detecting the particle size, and sealing and storing after passing the test.

[0015] The beneficial effects of the present application are: The eccentric block and the eccentric disc are arranged, so that when the stirring column rotates, the eccentric disc changes the rotating center, thereby driving the scraper on the stirring column to clean and stir the stirring tank. According to the arrangement of the spline shaft, the spline shaft can also move up and down during rotation. The lifting screw in the lifting bin is arranged, so that the spline shaft can move up and down intermittently while rotating, thereby effectively dispersing perfluoroacetone in the stirring tank, and avoiding the adhesion of materials on the inner wall, facilitating the cleaning in the later period.

[0016] The telescopic column can play a buffering effect, so that the distance of the spline shaft descending and the distance of the screening plate descending are consistent. The impurities screened by the screening plate one can be collected by the collecting disc, and the unqualified materials screened by the screening plate two can be cleaned by the moving plate. The spline shaft moves up and down while driving the lifting arm on the other side to move up and down. When the lifting arm moves up and down, the two sets of screening plate one are opened one by one, and the screening plate one is inclined. In the inclined state, the silicon dioxide on the screening plate one slides down. The screening work is carried out in turn by the screening plate one and the screening plate two, and the unqualified materials are removed. Finally, the qualified silicon dioxide is transported into the stirring tank through the conveying pipe and mixed with perfluoroacetone.

[0017] The materials in the conveying pipe reach the stirring tank through the feeding hole, and then are limited by the blocking strip one and the blocking wall, so that the silicon dioxide falls from the ring groove to the lower disc. When the eccentric disc is eccentric, the silicon dioxide on the lower disc falls from the discharging hole into the stirring tank, thereby realizing mixing. Through the cooperation of the eccentric disc and the discharging hole, the silicon dioxide can be uniformly injected into the perfluoroacetone, thereby improving the mixing effect. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described below with reference to the accompanying drawings.

[0019] Figure 1 It is the overall structure schematic diagram of the mixing device in the present application; Figure 2 It is the overall structure cross-sectional view of the stirring tank in the present application; Figure 3 It is the explosion view of the stirring mechanism in the present application; Figure 4 It is the local structure schematic diagram of the stirring tank in the present application; Figure 5It is the overall structure schematic diagram of screening bin in the application; Figure 6 It is the overall structure cross section diagram of screening bin in the application; Figure 7 It is Figure 6 It is the enlarged view of A in the figure; Figure 8 It is the overall structure cross section diagram of screening base in the application; Figure 9 It is the overall structure schematic diagram of lifting arm in the application; Figure 10 It is the overall structure cross section diagram of telescopic column in the application; Figure 11 It is the overall structure schematic diagram of screening board one in the application.

[0020] BRIEF DESCRIPTION OF DRAWINGS: 1, stirring tank; 12, lower disc; 121, upper disc; 1211, ring groove; 122, discharging hole; 13, baffle one; 131, baffle two; 14, baffle wall; 15, feeding hole; 2, stirring mechanism; 21, spline sleeve shaft; 211, connecting tooth; 22, spline shaft; 23, driving motor; 231, driving shaft; 232, driving gear; 24, eccentric block; 241, eccentric groove; 25, eccentric disc; 251, connecting block; 252, connecting groove; 26, connecting rod; 27, stirring column; 271, scraper; 272, stirring board; 3, screening mechanism; 31, screening bin; 311, conveying pipe; 3111, quantitative pump; 312, feeding pipe; 313, fixed arm; 314, moving motor; 32, collecting disc; 321, telescopic groove; 322, telescopic spring one; 323, extrusion block; 33, pressing plate; 331, telescopic spring two; 34, screening board one; 35, discharge port; 36, screening board two; 37, moving lead screw; 371, moving plate; 38, screening base; 381, vibrating machine; 39, lifting arm; 391, telescopic column; 392, connecting arm; 4, lifting mechanism; 41, lifting bin; 42, lifting lead screw; 43, lifting disc; 44, lifting gear; 45, driven column; 451, driven gear; 46, half gear. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] Please refer to Figures 1-11 The present application provides a kind of perfluorohexanone fire extinguishing material quantitative proportioning mixing device, including stirring tank 1, still includes: stirring mechanism 2 is arranged in the stirring tank 1; screening mechanism 3 is arranged on one side of the stirring tank 1; lifting mechanism 4 is arranged on the top of the stirring tank 1; The pretreated perfluorohexanone is injected into the stirring tank 1, and then the stirring mechanism 2 is driven to stir the perfluorohexanone. At the same time, the silica particles are added to the screening mechanism 3, and the silica is screened through the screening mechanism 3, and then added to the stirring tank 1 for stirring with the perfluorohexanone; When working, the pretreated perfluorohexanone is injected into the stirring tank 1, and the stirring mechanism 2 in the stirring tank 1 is used for stirring work. At the same time, the screening mechanism 3 on one side is used for screening treatment of the silica, and then the treated silica is transported into the stirring tank 1 to mix with the perfluorohexanone. After mixing, the core material is transferred to the ultrasonic tank for ultrasonic mixing work.

[0023] As shown in Figure 2 The stirring tank 1 is fixedly connected with an upper disc 121 and a lower disc 12. The stirring mechanism 2 includes a spline sleeve shaft 21 and an eccentric disc 25. The eccentric disc 25 is located between the upper disc 121 and the lower disc 12 and is rotatably connected thereto. The spline sleeve shaft 21 is rotatably connected to the middle part of the stirring tank 1. The spline sleeve shaft 21 is slidably connected with a spline shaft 22. The spline shaft 22 is in meshing connection with the spline sleeve shaft 21. The bottom of the spline shaft 22 is fixedly connected with an eccentric block 24. The eccentric block 24 is provided with an eccentric groove 241 in the middle part. The eccentric disc 25 is provided with a connecting groove 252 in the middle part. The connecting groove 252 is fixedly connected with a connecting block 251. The connecting block 251 is slidably arranged in the eccentric groove 241. The bottom of the eccentric disc 25 is fixedly connected with a connecting rod 26. The end of the connecting rod 26 away from the eccentric disc 25 is fixedly connected with a stirring column 27. The stirring column 27 is fixedly connected with a scraper 271 and a stirring plate 272. The lifting mechanism 4 includes a lifting bin 41. The lifting bin 41 is rotatably connected with a lifting lead screw 42. The lifting lead screw 42 is threadedly connected with a lifting disc 43. The lifting disc 43 is rotatably connected with the spline shaft 22. The lifting bin 41 is fixedly connected with the stirring tank 1; When working, the eccentric disc 25 rotates on the lower disc 12 and is limited by the lower disc 12. When stirring, the upper spline sleeve shaft 21 is first driven to rotate. When the spline sleeve shaft 21 rotates, the internal spline shaft 22 is driven to rotate, thereby driving the lower eccentric block 24 to rotate. The eccentric groove 241 is inclinedly arranged in the middle of the eccentric block 24, and the connecting block 251 in the middle of the eccentric disc 25 is in the eccentric groove 241. When the spline shaft 22 rotates, the lifting screw 42 in the lifting bin 41 is also driven to rotate. The lifting screw 42 is a bidirectional screw. When rotating, the lifting disc 43 moves up and down, thereby driving the spline shaft 22 to move, and the eccentric block 24 moves up and down in the eccentric disc 25, thereby changing the center of the eccentric disc 25 by the connecting block 251, so that the eccentric disc 25 rotates eccentrically. Normally, the lower stirring column 27 is in the middle of the stirring tank 1, that is, the two side scrapers 271 are not in contact with the inner wall of the stirring tank 1. When the eccentric disc 25 is eccentric, the stirring column 27 rotates in the planetary gear state, and the scraper 271 on the stirring column 27 contacts the inner wall of the stirring tank 1, thereby cleaning the inner wall of the stirring tank 1. The lifting of the upper eccentric block 24 is intermittent, thereby driving the lower stirring column 27 to intermittently change the stirring position, thereby improving the mixing effect of the perfluoroacetone. Through the arrangement of the eccentric block 24 and the eccentric disc 25, the rotating center of the stirring column 27 can be changed by the eccentric disc 25 when the stirring column 27 rotates, thereby driving the scraper 271 on the stirring column 27 to contact the stirring tank 1 for cleaning and stirring. According to the arrangement of the spline shaft 22, the stirring column 27 can also move up and down during rotation. Through the arrangement of the lifting screw 42 in the lifting bin 41, the spline shaft 22 can be intermittently driven to move up and down when rotating, thereby effectively dispersing the perfluoroacetone in the stirring tank 1, and avoiding the adhesion of materials on the inner wall, thereby facilitating the cleaning in the later period.

[0024] As Figures 5-11As shown, the screening mechanism 3 comprises a screening base 38 and a screening bin 31; a screening plate one 34 is rotatably arranged in the screening bin 31; the screening plate one 34 is provided with two groups; a collecting disc 32 is fixedly connected in the screening bin 31; an expansion slot 321 is formed at one end of the collecting disc 32; an expansion spring one 322 is fixedly connected in the expansion slot 321; an extrusion block 323 is fixedly connected at an end of the expansion spring one 322 away from the expansion slot 321; the extrusion block 323 movably abuts against the screening plate one 34; a pressing plate 33 is fixedly connected to the side wall of the collecting disc 32; an expansion spring two 331 is fixedly connected to the pressing plate 33; an end of the expansion spring two 331 away from the pressing plate 33 is fixedly connected to the screening plate one 34; the collecting disc 32 is provided with two groups and is located below the screening plate one 34; a screening plate two 36 is fixedly connected to the side wall of the screening bin 31; a conveying pipe 311 is fixedly connected to the outer wall of the screening bin 31; the conveying pipe 311 is located below the screening plate two 36; a quantitative pump 3111 is fixedly connected to the conveying pipe 311; an end of the conveying pipe 311 away from the screening bin 31 is movably connected to the stirring tank 1; an end of the lifting disc 43 away from the spline shaft 22 is fixedly connected to a lifting arm 39; an expansion column 391 is fixedly connected to the bottom of the lifting arm 39; a connecting arm 392 is spring-connected in the expansion column 391; an end of the connecting arm 392 away from the expansion column 391 is fixedly connected to the side wall of the screening plate one 34; a moving screw rod 37 is rotatably connected to the side wall of the screening bin 31; a moving plate 371 is threadedly connected to the moving screw rod 37; the moving plate 371 abuts against the surface of the screening plate two 36; a moving motor 314 is fixedly connected to the side wall of the screening bin 31; the moving screw rod 37 is driven by the moving motor 314; When working, the silica is screened through the screening bin 31 while stirring, and is put into the screening bin 31 and then falls onto the screening plate one 34 to be screened for impurities through the screening plate one 34. Meanwhile, the rear lifting arm 39 is lifted and lowered together with the lifting disc 43, and the two sets of screening plate one 34 are lowered through the telescopic column 391 and the connecting arm 392 when the lifting arm 39 is lifted and lowered. That is, in the initial state, the screening plate one 34 is in a parallel position, the silica enters the screening bin 31, and is filtered for impurities through the first set of screening plate one 34. After a period of time, the lifting lead screw 42 drives the lifting disc 43 to descend, and in the process of descending, one end of the two sets of screening plate one 34 is lowered through the connecting arm 392. When the first set of screening plate one 34 is lowered, the silica on the screening plate one 34 will slide to a lower position, and an opening will appear at one end of the descending screening plate one 34, and the silica will fall from the opening to the second set of screening plate two 36. At this time, the lifting lead screw 42 drives the lifting disc 43 to ascend, and then drives the two sets of screening plate one 34 to be parallel, and the screening work starts again when they are parallel, and then the second set of screening plate one 34 is lowered again to open, and the silica falls onto the screening plate two 36 from the opening, and the silica with qualified particle size is filtered to the lower position through the screening plate two 36, and is then conveyed to the stirring tank 1 through the conveying pipe 311 to be mixed with perfluoroacetone. When the screening plate one 34 is lowered, the telescopic spring one 322 and the extrusion block 323 are extruded, so as to avoid the influence of the collection disc 32 on the descent of the screening plate one 34. In the process of ascending, the telescopic spring two 331 can rebound, and the spring in the telescopic column 391 can also play a buffering effect in the process of moving the connecting arm 392 up and down, so as to avoid the inconsistency between the descending distance of the spline shaft 22 and the descending distance of the screening plate one 34. The impurities screened by the screening plate one 34 can be collected by the collection disc 32, and the unqualified materials intercepted by the screening plate two 36 can be cleaned by the moving plate 371. The conveying pipe 311 is quantitatively conveyed by the quantitative pump 3111, which is a prior art and is not shown in the figure. When the lifting disc 43 drives the spline shaft 22 to move up and down, it drives the other lifting arm 39 to move up and down. When the lifting arm 39 moves up and down, it can open an opening between the two sets of screening plate one 34, and make the screening plate one 34 be inclined. In the inclined state, the silica on the screening plate one 34 slides down, and is sequentially screened through the screening plate one 34 and the screening plate two 36, so that the unqualified materials are removed, and finally the qualified silica is conveyed to the stirring tank 1 through the conveying pipe 311 to be mixed with perfluoroacetone.

[0025] As Figure 2As shown, the upper disc 121 is fixedly connected with a baffle wall 14; the inner wall of the stirring tank 1 is fixedly connected with a baffle bar one 13 and a baffle bar two 131; the baffle bar one 13 and the baffle bar two 131 are arranged above the upper disc 121; the side wall of the stirring tank 1 is provided with a feeding hole 15; one end of the conveying pipe 311 away from the screening bin 31 is connected with the feeding hole 15; the feeding hole 15 is located above the baffle bar two 131; the upper disc 121 is provided with a ring groove 1211; the lower disc 12 is provided with a discharging hole 122; In work, the material in the conveying pipe 311 reaches the stirring tank 1 through the feeding hole 15, and first reaches the upper side of the upper disc 121, and then is limited by the baffle bar one 13 and the baffle wall 14, so that the silicon dioxide falls from the ring groove 1211 to the lower disc 12; when the eccentric state of the eccentric disc 25 appears, the silicon dioxide on the lower disc 12 falls from the discharging hole 122 into the stirring tank 1, so as to realize mixing; and through the cooperation of the eccentric disc 25 and the discharging hole 122, the silicon dioxide can be uniformly injected into the perfluoroethyl ketone, thereby improving the mixing effect.

[0026] As shown in the figure, Figure 2 The stirring mechanism 2 further comprises a driving shaft 231; the driving shaft 231 is rotationally connected with the top of the stirring tank 1; one end of the driving shaft 231 away from the stirring tank 1 is fixedly connected with a driving motor 23; the driving shaft 231 is fixedly connected with a driving gear 232; the spline sleeve shaft 21 is fixedly connected with a connecting tooth 211; the driving gear 232 is meshingly connected with the connecting tooth 211; the stirring tank 1 is rotationally connected with a driven column 45; the driven column 45 is fixedly connected with a driven gear 451 and a half gear 46; the driven gear 451 is meshingly connected with the connecting tooth 211; the bottom of the lifting bin 41 is rotationally connected with a lifting gear 44; the output end of the lifting gear 44 is fixedly connected with the input end of the lifting lead screw 42; the half gear 46 is meshingly connected with the lifting gear 44; In work, the driving gear 232 is driven to rotate by the motor, then the spline sleeve shaft 21 is driven to rotate through the connecting tooth 211, thereby driving the spline shaft 22 to rotate; while the spline sleeve shaft 21 rotates, the driven gear 451 and the half gear 46 are driven to rotate through the other end of the connecting tooth 211; when the half gear 46 rotates, it will intermittently drive the lifting gear 44 to rotate, thereby intermittently driving the spline shaft 22 to move up and down.

[0027] As shown in the figure, Figure 1 The bottom of the screening bin 31 is fixedly connected with a fixed arm 313; one end of the fixed arm 313 away from the screening bin 31 is fixedly connected with the stirring tank 1; In work, the fixed arm 313 can fix the screening bin 31.

[0028] As shown in the figure, Figure 5 The side wall of the screening bin 31 is fixedly connected with a discharge port 35; the discharge port 35 is provided with multiple groups; the top of the screening bin 31 is fixedly connected with a feeding pipe 312; In operation, the silica is fed into the feeding pipe 312, and the impurities on the collecting disc 32 and the screening plate two 36 are discharged through the discharge port 35.

[0029] As shown in Figure 6 The bottom of the screening base 38 is fixedly connected with a vibrating machine 381; and the end of the vibrating machine 381 away from the screening base 38 is fixedly connected with the screening bin 31. In operation, the vibrating machine 381 drives the screening bin 31 to vibrate, thereby accelerating the screening of the silica, and the vibration amplitude does not affect the connection between the conveying pipe 311 and the screening bin 31.

[0030] As shown in Figures 1-11 The present application provides a perfluorohexanone fire extinguishing material, and a processing method thereof, which comprises the following steps: Raw material preparation and pretreatment → core material premixing → shell material coating → curing, shaping and post-treatment; In the raw material preparation and pretreatment step, an industrial-grade perfluorohexanone with a purity of ≥ 99.5% is selected, impurities are removed by filtration, and then the perfluorohexanone is injected into a low-temperature storage tank for standby; The silica is first vacuum dried, then high-speed deagglomerated, and finally filtered for standby; The modified guar gum and the acrylic resin are dissolved in anhydrous ethanol, stirred and dissolved, and then filtered; the curing agent and the trigger agent are respectively prepared into ethanol solutions; The core material premixing step: the perfluorohexanone is injected into the stirring tank 1 and the stirring is started, and the treated silica is added; The stirring and filtering treatment step uses the above-mentioned one kind of perfluorohexanone fire extinguishing material quantitative proportioning mixing device for the preparation of the fire extinguishing material: The stirring and filtering treatment method is as follows: the vacuum-dried silica is placed in the screening bin 31, and the silica is screened by the screening plate one 34 and the screening plate two 36 in the screening bin 31, and then the screened silica is quantitatively conveyed to the stirring tank 1 through the conveying pipe 311 and the quantitative pump 3111, and then the eccentric disc 25 in the stirring tank 1 is driven to rotate, so that the eccentric disc 25 drives the lower stirring column 27 to rotate, and the perfluorohexanone and the silica are mixed; The shell material coating treatment step: the core material is transferred to an ultrasonic dispersion tank, and the ultrasonic stirring is started to complete the shell material coating; The curing, shaping and post-treatment step: the curing agent solution is added dropwise into the coating liquid for standby stirring, so that the shell material is crosslinked and cured, the trigger agent solution is added, and then the mixture is centrifuged after stirring, the microcapsule particles are collected, the particle size is detected, and the qualified particles are sealed and stored.

[0031] The above describes one embodiment of the present application in detail, but the content is only a preferred embodiment of the present application, and cannot be considered as limiting the scope of the present application. Any equivalent changes and improvements made within the scope of the present application should still belong to the patent coverage of the present application.

Claims

1. A quantitative mixing device for perfluorohexanone fire extinguishing material, comprising a stirring tank (1), characterized in that, Also include: Stirring mechanism (2) is arranged in stirring tank (1); Screening mechanism (3) is arranged at one side of stirring tank (1); Lifting mechanism (4) is arranged at the top of stirring tank (1); The pretreated perfluorohexanone is injected into the stirring tank (1), then the stirring mechanism (2) is driven to stir the perfluorohexanone, at the same time, the silica particles are added into the screening mechanism (3), the silica is screened through the screening mechanism (3), and then added into the stirring tank (1) to be stirred with the perfluorohexanone.

2. The device for mixing perfluorohexanone fire extinguishing material according to claim 1, characterized in that, The stirring tank (1) is fixed with an upper disc (121) and a lower disc (12); the stirring mechanism (2) comprises a spline sleeve shaft (21) and an eccentric disc (25); the eccentric disc (25) is located between the upper disc (121) and the lower disc (12) and is rotatably connected thereto; the spline sleeve shaft (21) is rotatably connected to the middle of the stirring tank (1); the spline sleeve shaft (21) is slidably connected with a spline shaft (22); the spline shaft (22) is in meshing connection with the spline sleeve shaft (21); the spline shaft (22) is fixedly connected with an eccentric block (24) at the bottom; the eccentric block (24) is provided with an eccentric groove (241) in the middle; the eccentric disc (25) is provided with a connecting groove (252) in the middle; the connecting groove (252) is fixedly connected with a connecting block (251); the connecting block (251) is slidably arranged in the eccentric groove (241); the eccentric disc (25) is fixedly connected with a connecting rod (26) at the bottom; the connecting rod (26) is fixedly connected with a stirring column (27) at the end away from the eccentric disc (25); the stirring column (27) is fixedly connected with a scraper (271) and a stirring plate (272); the lifting mechanism (4) comprises a lifting bin (41); the lifting bin (41) is rotatably connected with a lifting lead screw (42); the lifting lead screw (42) is threadedly connected with a lifting disc (43); the lifting disc (43) is rotatably connected with the spline shaft (22); the lifting bin (41) is fixedly connected with the stirring tank (1).

3. The device for mixing perfluorohexanone fire extinguishing material according to claim 2, characterized in that, The screening mechanism (3) comprises a screening base (38) and a screening bin (31); a screening plate one (34) is rotationally arranged in the screening bin (31); the screening plate one (34) is provided with two groups; a collecting disc (32) is fixedly connected in the screening bin (31); one end of the collecting disc (32) is provided with an expansion slot (321); the expansion slot (321) is fixedly connected with an expansion spring one (322); one end of the expansion spring one (322) away from the expansion slot (321) is fixedly connected with a pressing block (323); the pressing block (323) is movably abutted with the screening plate one (34); the side wall of the collecting disc (32) is fixedly connected with a pressing plate (33); the pressing plate (33) is fixedly connected with an expansion spring two (331); one end of the expansion spring two (331) away from the pressing plate (33) is fixedly connected with the screening plate one (34); the collecting disc (32) is provided with two groups and is located below the screening plate one (34) respectively; the side wall of the screening bin (31) is fixedly connected with a screening plate two (36); the outer wall of the screening bin (31) is fixedly connected with a conveying pipe (311); the conveying pipe (311) is located below the screening plate two (36); the conveying pipe (311) is fixedly connected with a quantitative pump (3111); one end of the conveying pipe (311) away from the screening bin (31) is movably connected with the stirring tank (1); one end of the lifting disc (43) away from the spline shaft (22) is fixedly connected with a lifting arm (39); the bottom of the lifting arm (39) is fixedly connected with an expansion column (391); the expansion column (391) is spring-connected with a connecting arm (392); one end of the connecting arm (392) away from the expansion column (391) is fixedly connected with the side wall of the screening plate one (34) respectively; the side wall of the screening bin (31) is rotationally connected with a moving screw rod (37); the moving screw rod (37) is screw-connected with a moving plate (371); the moving plate (371) is abutted with the surface of the screening plate two (36); the side wall of the screening bin (31) is fixedly connected with a moving motor (314); the moving screw rod (37) is driven by the moving motor (314).

4. The device for mixing perfluorohexanone fire extinguishing material according to claim 3, characterized in that, The upper disc (121) is fixedly connected with a blocking wall (14); the inner wall of the stirring tank (1) is fixedly connected with a blocking strip one (13) and a blocking strip two (131); the blocking strip one (13) and the blocking strip two (131) are arranged above the upper disc (121); the side wall of the stirring tank (1) is provided with a feeding hole (15); one end of the conveying pipe (311) away from the screening bin (31) is connected with the feeding hole (15); the feeding hole (15) is located above the blocking strip two (131); the upper disc (121) is provided with an annular groove (1211); the lower disc (12) is provided with a discharging hole (122).

5. The device for mixing perfluorohexanone fire extinguishing material according to claim 4, characterized in that, The stirring mechanism (2) further comprises a driving shaft (231); the driving shaft (231) is rotationally connected to the top of the stirring tank (1); one end of the driving shaft (231) away from the stirring tank (1) is fixedly connected with a driving motor (23); the driving shaft (231) is fixedly connected with a driving gear (232); the spline sleeve shaft (21) is fixedly connected with a connecting gear tooth (211); the driving gear (232) is meshingly connected with the connecting gear tooth (211); the stirring tank (1) is rotationally connected with a driven column (45); the driven column (45) is fixedly connected with a driven gear (451) and a half gear (46); the driven gear (451) is meshingly connected with the connecting gear tooth (211); the bottom of the lifting bin (41) is rotationally connected with a lifting gear (44); the output end of the lifting gear (44) is fixedly connected with the input end of the lifting lead screw (42); the half gear (46) is meshingly connected with the lifting gear (44).

6. The device for mixing perfluorohexanone fire extinguishing material according to claim 5, wherein, The bottom of the screening bin (31) is fixedly connected with a fixing arm (313); one end of the fixing arm (313) away from the screening bin (31) is fixedly connected with the stirring tank (1).

7. The device for mixing perfluorohexanone fire extinguishing material according to claim 6, characterized in that, The side wall of the screening bin (31) is fixedly connected with a discharge port (35); the discharge port (35) is provided with multiple groups; the top of the screening bin (31) is fixedly connected with a feeding pipe (312).

8. The device for mixing perfluorohexanone fire extinguishing material according to claim 7, characterized in that, The bottom of the screening base (38) is fixedly connected with a vibrating machine (381); one end of the vibrating machine (381) away from the screening base (38) is fixedly connected with the screening bin (31).

9. A perfluorohexanone fire extinguishing material, characterized by, The processing method of the fire extinguishing material comprises the following steps: Raw material preparation and pretreatment → core material premixing → shell material coating → curing, shaping and post-treatment; In the raw material preparation and pretreatment step, an industrial-grade perfluorohexanone with a purity of ≥99.5% is selected, impurities are removed by filtration, and then it is injected into a low-temperature storage tank for heat preservation and standby use; The silicon dioxide is first vacuum dried, then high-speed deagglomerated, and finally filtered for standby use; The modified guar gum and the acrylic resin are dissolved in anhydrous ethanol, filtered after stirring and dissolving, and the curing agent and the trigger agent are respectively prepared into ethanol solutions; In the core material premixing step, the perfluorohexanone is injected into the stirring tank (1) and the stirring is started, and the treated silicon dioxide is added; The stirring and filtering treatment step adopts the quantitative proportioning mixing device for perfluorohexanone fire extinguishing material according to claim 8 for the preparation of the fire extinguishing material: The stirring and filtering treatment method is as follows: the vacuum-dried silicon dioxide is placed in the screening bin (31), screened by the screening plate one (34) and the screening plate two (36) in the screening bin (31), and then quantitatively delivered to the stirring tank (1) through the conveying pipe (311) and the quantitative pump (3111); then the eccentric disc (25) in the stirring tank (1) is driven to rotate, so that the eccentric disc (25) drives the lower stirring column (27) to rotate, and the perfluorohexanone and the silicon dioxide are mixed; In the shell material coating treatment step, the core material is transferred to an ultrasonic dispersion tank, and the shell material coating is completed by starting ultrasonic stirring. The solidification setting and post-processing steps are: adding a solidification agent solution dropwise into the coating liquid, keeping warm and stirring, cross-linking and solidifying the shell material, adding a trigger solution, stirring and then centrifugally separating, collecting the microcapsule particles, detecting the particle size, and sealing and storing after passing the test.

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