CN212016775U

CN212016775U - Distillation plant is used in production of hexamethyldisilazane

Info

Publication number: CN212016775U
Application number: CN202020337290.XU
Authority: CN
Inventors: 何鸿杰
Original assignee: Ji'an Yongxiang Silicon New Material Co ltd
Current assignee: Ji'an Yongxiang Silicon New Material Co ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-11-27
Anticipated expiration: 2030-03-17

Abstract

The utility model relates to a hexamethyldisilazane technical field just discloses a distillation plant is used in hexamethyldisilazane production, including the distillation storehouse, the bottom fixed mounting in distillation storehouse has quantity to be two supporting seats, the interior diapire fixed mounting in distillation storehouse has the backup pad, the top fixed mounting of backup pad has the heat exchange tube, the right side fixedly connected with one end of heat exchange tube runs through and extends to the outside inlet pipe in distillation storehouse. This distillation plant is used in hexamethyldisilazane production, through setting up the inlet pipe, can be connected the inlet pipe with the storage device of mixed solution, the mixed solution passes through the heat exchange tube, start the water pump, the suction line discharges the mixed solution through the second fluid-discharge tube in the distillation storehouse, through setting up the second motor, start the second motor, the output shaft of second motor rotates, the second pivot drives the puddler and rotates, through setting up the heating rod, the heating rod heats the puddler and stirs messenger liquid heating more evenly on one side.

Description

Distillation plant is used in production of hexamethyldisilazane

Technical Field

The utility model relates to a hexamethyldisilazane technical field specifically is a distillation plant is used in hexamethyldisilazane production.

Background

Hexamethyldisilazane, colorless transparent liquid, easy to hydrolyze, release NH3 to produce hexamethyldisiloxane, react with alcohol or phenol in the presence of catalyst to produce trimethylalkoxysilane or trimethylaryloxysilane, react with anhydrous hydrogen chloride to release NH3 or NH4Cl to produce trimethylchlorosilane, which can be prepared by reacting trimethylchlorosilane with NH3, and can be used as a hydrophobic agent for treating the surface of fumed silica and a reagent for providing N atoms in organic synthesis reaction, and can also be used as an assistant for silicon carbide fiber to improve the heat resistance and strength of the silicon carbide fiber, and can also be used as a precipitation preventing agent for paint and for preparing organic silicon compounds.

The distillation device for producing hexamethyldisilazane on the market usually generates a large amount of heat in the using process, but the existing distillation devices do not have devices for efficiently utilizing the heat in the distillation devices, so that the energy utilization rate is low, the cost is high, the economic benefit is reduced, the cooling after distillation is insufficient, and the cooling effect is not ideal, so that the distillation device for producing hexamethyldisilazane is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To prior art not enough, the utility model provides a distillation plant is used in hexamethyldisilazane production possesses advantages such as waste heat make full use of and cooling are abundant, has solved distillation plant is used in hexamethyldisilazane production and can produce a large amount of heats usually in the use, and present distillation plant does not all have its inside thermal device of efficient utilization, lead to energy utilization not high, consequently cause the cost high at present, therefore reduced economic benefits and the cooling after the distillation is not abundant, the unsatisfactory problem of cooling effect.

(II) technical scheme

For realizing the abundant purpose of above-mentioned waste heat make full use of and cooling, the utility model provides a following technical scheme: the utility model provides a distillation plant is used in hexamethyldisilazane production, includes the distillation storehouse, the bottom fixed mounting in distillation storehouse has the supporting seat that quantity is two, the interior diapire fixed mounting in distillation storehouse has the backup pad, the top fixed mounting of backup pad has the heat exchange tube, the right side fixedly connected with one end of heat exchange tube runs through and extends to the outside inlet pipe in distillation storehouse, the left side fixed mounting in distillation storehouse has the water pump, the bottom fixedly connected with one end of water pump runs through and extends to the distillation storehouse inside and with the liquid suction pipe of the left side fixed connection of heat exchange tube, the top fixedly connected with one end of water pump runs through and extends to the inside second fluid-discharge tube in distillation storehouse, the bottom fixedly connected with flowing back funnel of second fluid-discharge tube, the left side fixed mounting in distillation storehouse has the motor storehouse, the left side inner wall fixed mounting in motor storehouse, the distillation device comprises a distillation bin, a first motor, a second motor, a heating rod, a temperature sensor, a baffle plate, a liquid outlet pipe, a water tank, a storage bin and a mounting plate, wherein one end of the output shaft of the second motor penetrates through and extends into the distillation bin and is movably connected with the right inner wall of the distillation bin, the top and the bottom of the second rotating shaft are fixedly connected with the stirring rod, the heating rod is fixedly mounted in the stirring rod, the temperature sensor is fixedly mounted on the left inner wall of the distillation bin, the baffle plate is fixedly connected between the left inner wall and the right inner wall of the distillation bin, the number of the bottom of the baffle plate is two, one end of the bottom of the baffle plate penetrates through and extends to the liquid outlet pipe above the baffle plate, the water tank is fixedly mounted on the right side of the distillation bin, the storage bin is fixedly mounted below the water tank on the right inner, two the equal fixed mounting in the left and right sides of first pivot has the flabellum, the top fixedly connected with quantity in distillation storehouse is two and one end runs through and extends to the inside discharge tube in distillation storehouse, two the equal fixedly connected with gas collection funnel in bottom of discharge tube, two the top fixedly connected with connecting pipe of discharge tube, the bottom fixedly connected with one end of connecting pipe runs through and extends to the outside cooling tube of water tank, the bottom fixedly connected with one end of cooling tube runs through and extends to the inside first drain pipe in storage silo, the bottom fixedly connected with discharging pipe of storage silo.

Preferably, ten and be even equidistance distribution are no less than in the quantity of puddler, the connecting pipe is the L style of calligraphy, the cooling tube is the snake type.

Preferably, the second liquid discharge pipe is L-shaped, the heat exchange pipe is snake-shaped, and the liquid pumping pipe is L-shaped.

Preferably, the outer side of the liquid outlet pipe is fixedly connected with a first valve, the outer side of the liquid outlet pipe is fixedly connected with a second valve, one end of the right side of the distillation bin is fixedly connected with a third liquid outlet pipe which penetrates through and extends to the inside of the distillation bin, and the outer side of the third liquid outlet pipe is fixedly connected with a third valve.

Preferably, the top of the distillation bin is provided with two first through holes matched with the diameter of the gas collecting pipe, and the left side of the distillation bin is provided with a second through hole matched with the diameter of the second liquid discharging pipe.

Preferably, the front of water tank is inlayed and is had first observation window, the front of distillation storehouse is inlayed and is had the second observation window, the front of storage silo is inlayed and is had the third observation window.

(III) advantageous effects

Compared with the prior art, the utility model provides a distillation plant is used in hexamethyldisilazane production possesses following beneficial effect:

1. the distillation device for producing hexamethyldisilazane is characterized in that a feeding pipe is arranged, the feeding pipe can be connected with a storage device of a mixed solution, the mixed solution passes through a heat exchange pipe, a water pump is started, a liquid pumping pipe discharges the mixed solution into a distillation bin through a second liquid discharge pipe, by arranging the second motor, the second motor is started, the output shaft of the second motor rotates, the second rotating shaft drives the stirring rod to rotate, by arranging the heating rod, the liquid is heated more uniformly by the heating rod while the stirring rod is heated, the evaporated gas passes through the gas collection funnel, the gas collection pipe and the cooling pipe, the air is cooled by the water in the water tank, the first motor is started, the output shaft of the first motor drives the first rotating shaft to rotate, the fan blades rotate, the water in the water tank is cooled, and the cooled liquid enters the storage bin through the first liquid discharge pipe and is collected through the discharge pipe.

2. This distillation plant is used in hexamethyldisilazane production, through setting up temperature sensor, the speed of the temperature and puddler that the heating rod heated is adjusted according to temperature sensor's data, can make the temperature continuous control at hexamethyldisilazane's boiling point, when no longer evaporating gas in the distillation storehouse, open the valve of drain pipe, the bottom that the drain pipe got into the distillation storehouse is passed through to remaining high temperature's solution, high temperature can preheat the mixed solution that gets into from the heat exchange tube, the speed of distillation has been improved, through setting up the third fluid-discharge tube, can discharge the solution of remaining mixed solution.

Drawings

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

fig. 2 is a front view of the structure of the present invention.

In the figure: the device comprises a distillation bin 1, a heat exchange tube 2, a supporting seat 3, a supporting plate 4, a feeding tube 5, a partition plate 6, a discharging tube 7, a storage bin 8, a first liquid discharge tube 9, a cooling tube 10, a water tank 11, fan blades 12, a mounting plate 13, a first motor 14, a first rotating shaft 15, a connecting tube 16, a gas collecting tube 17, a gas collecting funnel 18, a heating rod 19, a liquid discharging funnel 20, a second liquid discharge tube 21, a stirring rod 22, a motor bin 23, a second motor 24, a second rotating shaft 25, a water pump 26, a temperature sensor 27, a liquid pumping tube 28 and a liquid discharge tube 29.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, a distillation apparatus for producing hexamethyldisilazane comprises a distillation bin 1, wherein two support bases 3 are fixedly mounted at the bottom of the distillation bin 1, a support plate 4 is fixedly mounted on the inner bottom wall of the distillation bin 1, a heat exchange tube 2 is fixedly mounted at the top of the support plate 4, the heat exchange tube 2 is serpentine, a feed tube 5 with one end penetrating and extending to the outside of the distillation bin 1 is fixedly connected to the right side of the heat exchange tube 2, a water pump 26 is fixedly mounted at the left side of the distillation bin 1, a liquid pumping tube 28 with one end penetrating and extending to the inside of the distillation bin 1 and fixedly connected to the left side of the heat exchange tube 2 is fixedly connected to the bottom of the water pump 26, the liquid pumping tube 28 is L-shaped, a second liquid discharge tube 21 with one end penetrating and extending to the inside of the distillation bin 1 is fixedly connected to the top of the water pump 26, the second liquid discharge tube 21 is L-shaped, a, the bottom of the second liquid discharge pipe 21 is fixedly connected with a liquid discharge funnel 20, the left side of the distillation bin 1 is fixedly provided with a motor bin 23, the left side inner wall of the motor bin 23 is fixedly provided with a second motor 24, the output shaft of the second motor 24 is fixedly connected with a second rotating shaft 25, one end of the second rotating shaft penetrates through and extends into the distillation bin 1 and is movably connected with the right side inner wall of the distillation bin 1, the top and the bottom of the second rotating shaft 25 are fixedly connected with stirring rods 22, the number of the stirring rods 22 is not less than ten and is uniformly distributed at equal intervals, the inside of the stirring rods 22 is fixedly provided with a heating rod 19, the left side inner wall of the distillation bin 1 is fixedly provided with a temperature sensor 27, a partition plate 6 is fixedly connected between the left side inner wall and the right side inner wall of the distillation bin 1, the bottom of the partition plate 6 is fixedly connected with two liquid discharge pipes, a water tank 11 is fixedly arranged on the right side of the distillation bin 1, a first observation window is inlaid in the front of the water tank 11, a storage bin 8 positioned below the water tank 11 is fixedly arranged on the right side of the distillation bin 1, a third observation window is inlaid in the front of the storage bin 8, mounting plates 13 are fixedly arranged on the inner walls of the left side and the right side of the water tank 11, first motors 14 are fixedly arranged at the bottoms of the two mounting plates 13, output shafts of the two first motors 14 are fixedly connected with first rotating shafts 15, fan blades 12 are fixedly arranged on the left side and the right side of the two first rotating shafts 15, two gas collecting pipes 17 with one ends penetrating and extending into the distillation bin 1 are fixedly connected to the top of the distillation bin 1, first penetrating holes which are matched with the diameters of the gas collecting pipes 17 and have two numbers are formed in the top of the distillation bin 1, gas collecting funnels 18 are fixedly connected to the bottoms of the two gas collecting pipes 17, connecting pipe 16 is the L style of calligraphy, the bottom fixedly connected with one end of connecting pipe 16 runs through and extends to the outside cooling tube 10 of water tank 11, cooling tube 10 is the snake type, the bottom fixedly connected with one end of cooling tube 10 runs through and extends to the inside first fluid-discharge tube 9 of storage silo 8, the bottom fixedly connected with discharging tube 7 of storage silo 8, the outside fixedly connected with second valve of discharging tube 7, the right side fixedly connected with one end of distillation silo 1 runs through and extends to the inside third fluid-discharge tube of distillation silo 1, the outside fixedly connected with third valve of third fluid-discharge tube, the front of distillation silo 1 is inlayed and is had the second observation window, the inner wall fixedly connected with heat preservation of distillation silo 1, through setting up the heat preservation, the heat that produces in the distillation process can not run off rapidly.

To sum up, the distillation device for producing hexamethyldisilazane can connect the feeding pipe 5 with a storage device for mixed solution by arranging the feeding pipe 5, the mixed solution passes through the heat exchange pipe 2, the water pump 26 is started, the mixed solution is discharged into the distillation bin 1 through the second liquid discharge pipe 21 by the liquid suction pipe 28, the second motor 24 is started by arranging the second motor 24, the output shaft of the second motor 24 rotates, the second rotating shaft 25 drives the stirring rod 22 to rotate, the liquid is heated more uniformly by arranging the heating rod 19 and stirring the stirring rod 22 while heating the stirring rod 19, the evaporated gas passes through the gas collection funnel 18, the gas collection pipe 17 and the cooling pipe 10, the gas is cooled by the water in the water tank 11, the first motor 14 is started, the output shaft of the first motor 14 drives the first rotating shaft 15 to rotate, the fan blades 12 rotate, and the water in the water tank 11 is cooled, the cooled liquid enters a storage bin 8 through a first liquid discharge pipe 9 and is collected through a discharge pipe 7.

Moreover, the distillation device for producing hexamethyldisilazane is provided with the temperature sensor 27, the heating temperature of the heating rod 19 and the speed of the stirring rod 22 are adjusted according to the data of the temperature sensor 27, the temperature can be continuously controlled at the boiling point of hexamethyldisilazane, when gas is not evaporated in the distillation bin 1, the valve of the liquid outlet pipe 29 is opened, the residual high-temperature solution enters the bottom of the distillation bin 1 through the liquid outlet pipe 29, the high temperature can preheat the mixed solution entering from the heat exchange pipe 2, the distillation speed is improved, and the solution of the residual mixed solution can be discharged by arranging the third liquid outlet pipe, so that the problem that the distillation device for producing hexamethyldisilazane usually generates a large amount of heat in the use process is solved, and the existing distillation device does not have a device for efficiently utilizing the internal heat, so that the energy utilization rate is not high, and the cost is high, thereby reducing economic efficiency and having insufficient cooling effect after distillation.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a distillation plant is used in production of hexamethyldisilazane, includes distillation storehouse (1), its characterized in that: the bottom fixed mounting of distillation storehouse (1) has supporting seat (3) that quantity is two, the interior diapire fixed mounting of distillation storehouse (1) has backup pad (4), the top fixed mounting of backup pad (4) has heat exchange tube (2), the right side fixedly connected with one end of heat exchange tube (2) runs through and extends to distillation storehouse (1) outside inlet pipe (5), the left side fixed mounting of distillation storehouse (1) has water pump (26), the bottom fixedly connected with one end of water pump (26) runs through and extends to distillation storehouse (1) inside and with the liquid suction pipe (28) of the left side fixed connection of heat exchange tube (2), the top fixedly connected with one end of water pump (26) runs through and extends to the inside second fluid-discharge tube (21) of distillation storehouse (1), the bottom fixedly connected with flowing back funnel (20) of second fluid-discharge tube (21), the utility model discloses a distillation device, including distillation storehouse (1), motor storehouse (23) is fixedly installed in the left side of distillation storehouse (1), the left side inner wall fixed mounting in motor storehouse (23) has second motor (24), the output shaft fixedly connected with one end of second motor (24) runs through and extends to distillation storehouse (1) inside and with distillation storehouse (1) right side inner wall swing joint's second pivot (25), the equal fixedly connected with puddler (22) in top and bottom of second pivot (25), the inside fixed mounting of puddler (22) has heating rod (19), the left side inner wall fixed mounting in distillation storehouse (1) has temperature sensor (27), fixedly connected with baffle (6) between the left and right sides inner wall in distillation storehouse (1), the bottom fixedly connected with quantity of baffle (6) is two and one end runs through and extends to drain pipe (29) of baffle (6) top, the right side of the distillation bin (1) is fixedly provided with a water tank (11), the right side of the distillation bin (1) is fixedly provided with a storage bin (8) positioned below the water tank (11), the inner walls of the left side and the right side of the water tank (11) are fixedly provided with mounting plates (13), the bottoms of the two mounting plates (13) are fixedly provided with first motors (14), the output shafts of the two first motors (14) are fixedly connected with first rotating shafts (15), the left side and the right side of the two first rotating shafts (15) are fixedly provided with fan blades (12), the top of the distillation bin (1) is fixedly connected with two gas collecting pipes (17) of which one ends penetrate through and extend to the inside of the distillation bin (1), the bottoms of the two gas collecting pipes (17) are fixedly connected with gas collecting funnels (18), and the top of the two gas collecting pipes (17) is fixedly connected with a connecting pipe (, the bottom fixedly connected with one end of connecting pipe (16) runs through and extends to outside cooling tube (10) of water tank (11), the bottom fixedly connected with one end of cooling tube (10) runs through and extends to inside first drain pipe (9) of storage silo (8), the bottom fixedly connected with discharging pipe (7) of storage silo (8).

2. The distillation device for producing hexamethyldisilazane according to claim 1, wherein: ten and be even equidistance distribution are no less than in the quantity of puddler (22), connecting pipe (16) are the L style of calligraphy, cooling tube (10) are the snake type.

3. The distillation device for producing hexamethyldisilazane according to claim 1, wherein: the second liquid discharge pipe (21) is L-shaped, the heat exchange pipe (2) is snake-shaped, and the liquid pumping pipe (28) is L-shaped.

4. The distillation device for producing hexamethyldisilazane according to claim 1, wherein: the outside fixedly connected with first valve of drain pipe (29), the outside fixedly connected with second valve of discharging pipe (7), the third fluid-discharge tube that right side fixedly connected with one end of distillation storehouse (1) was run through and was extended to distillation storehouse (1) inside, the outside fixedly connected with third valve of third fluid-discharge tube.

5. The distillation device for producing hexamethyldisilazane according to claim 1, wherein: the top of the distillation bin (1) is provided with two first through holes matched with the diameters of the gas collecting pipes (17), and the left side of the distillation bin (1) is provided with second through holes matched with the diameters of the second liquid discharging pipes (21).

6. The distillation device for producing hexamethyldisilazane according to claim 1, wherein: the front of water tank (11) is inlayed and is had first observation window, the front of distillation storehouse (1) is inlayed and is had the second observation window, the front of storage silo (8) is inlayed and is had the third observation window.