CN115518397A - High-efficient benzene dewatering device - Google Patents

Abstract

The application relates to a high-efficiency benzene dehydration device, which relates to the field of chemical industry and comprises a dehydration preheater, wherein the dehydration preheater is used for primarily heating an azeotrope formed by benzene and water, the dehydration preheater is communicated with an azeotropic dehydrator, the azeotropic dehydrator is used for heating and azeotropy the azeotrope formed by the benzene and the water, the azeotropic dehydrator is communicated with an azeotropic evaporator, and an oil-water separator is arranged on the azeotropic evaporator; the azeotropic evaporator comprises an azeotropic container with an azeotropic cavity arranged inside, a plurality of uniformly distributed air holes are arranged on the periphery of the azeotropic container, and the air holes are communicated with the dehydration preheater; a defoaming mechanism for defoaming the azeotrope formed by the benzene and the water is arranged in the azeotropic chamber; the top of the azeotropic chamber is communicated with a gas outlet, the gas outlet is communicated with a collecting device, and the collecting device is used for collecting pure benzene. This application has the dehydration rate height, and the transformation operation degree of difficulty is low, the effect of convenient operation installation.

Description

High-efficient benzene dewatering device

Technical Field

The application relates to the field of chemical industry, in particular to a high-efficiency benzene dehydration device.

Background

At present, the benzene dehydration mode widely used is a standing natural sedimentation mode in a container and a drying agent adsorption mode. The natural settling dehydration mode by standing in the container needs at least two containers, one for dehydration and one for feeding. By adopting a drying agent adsorption mode, adsorption equipment and desorption equipment must be added to ensure production continuity.

Both the two benzene dehydration modes need additional large-scale equipment, and the dehydration effect of the two modes can only reduce the water content of benzene from 600ppm to 500ppm.

Aiming at the related technologies, the inventor considers that the existing benzene dehydration mode has low dehydration efficiency, great transformation operation difficulty and complex installation.

Disclosure of Invention

In order to improve the dehydration rate, reduce and reform transform the operation degree of difficulty, convenient operation installation, this application provides a high-efficient benzene dewatering device.

The application provides a high-efficient benzene dewatering device adopts following technical scheme:

a high-efficiency benzene dehydration device comprises a dehydration preheater, wherein the dehydration preheater is used for primarily heating an azeotrope formed by benzene and water, the dehydration preheater is communicated with an azeotropic dehydrator, the azeotropic dehydrator is used for heating and azeotropy the azeotrope formed by the benzene and the water, the azeotropic dehydrator is communicated with an azeotropic evaporator, and the azeotropic evaporator is provided with an oil-water separator;

the azeotropic evaporator comprises an azeotropic container with an azeotropic cavity inside, a plurality of uniformly distributed air holes are formed on the periphery of the azeotropic container, and the air holes are communicated with the dehydration preheater;

a defoaming mechanism for defoaming the azeotrope formed by the benzene and the water is arranged in the azeotropic chamber;

the top of the azeotropic chamber is communicated with a gas outlet, the gas outlet is communicated with a collecting device, and the collecting device is used for collecting pure benzene.

Through adopting above-mentioned technical scheme, the dehydration pre-heater is to preliminary preheating the azeotropic mixture to the mixture of benzene and water, later through the preliminary azeotrope ware of preheating azeotropic benzene and water of dehydration pre-heater in leading-in to the azeotropic dehydrator of gas pocket, remove the foam through the azeotrope of defoaming mechanism to benzene and water in the azeotropic dehydrator, accomplish except that the foam work after, pure benzene passes through the gas outlet and gets into collection device, the completion is to the collection of pure benzene, the water that removes the foam production gets into in the oil water separator and collects it, accomplish the dehydration work to benzene, improve the benzene dehydration rate, simultaneously through setting up azeotropic evaporator and oil water separator, reduce benzene dewatering device's the transformation operation degree of difficulty, easy to operate installs.

Optionally, the defoaming mechanism includes a defoaming shell, the defoaming shell is slidably mounted on the inner wall of the azeotropic container, a filling defoaming plate is fixedly mounted on the inner wall of the defoaming shell, an iron mesh defoaming plate is arranged at one end of the filling defoaming plate close to the air outlet, and the iron mesh defoaming plate is fixedly mounted on the inner wall of the defoaming shell;

the iron net defoaming plate is provided with a limiting hole, and a vibration mechanism is arranged in the limiting hole.

Through adopting above-mentioned technical scheme, set up and fill and remove the foam board and the foam board is removed to the iron wire net, improve dewatering efficiency, will fill simultaneously and remove the foam board and the foam board is removed to the iron wire net and install on defoaming shells inner wall, conveniently install and dismantle filling the foam board and removing the foam board with the iron wire net, reduce the transformation operation degree of difficulty.

Optionally, the vibration mechanism comprises a vibration block, the vibration block is abutted to the inner wall of the limiting hole in the circumferential direction, the vibration block is in threaded connection with a reciprocating lead screw, and one end, far away from the vibration block, of the reciprocating lead screw is installed on the oil-water separator.

Through adopting above-mentioned technical scheme, set up vibration mechanism, rotate through reciprocal lead screw and drive the vibrations piece and take place the ascending reciprocating motion of vertical side, reciprocating motion through the vibrations piece and then drive and fill defoaming board and iron wire net defoaming board and take place the ascending removal of vertical side in azeotropic container, the removal through filling defoaming board and iron wire net defoaming board improves the whereabouts volume of adhering to filling defoaming board and iron wire net defoaming board water-feeding, improves defoaming efficiency, avoids adhering to the water of filling defoaming board and iron wire net defoaming board and produces the influence to the defoaming.

Optionally, the oil-water separator comprises a base, an oil-water separation shell with an oil-water separation cavity formed inside is arranged on the base, one end, far away from the base, of the oil-water separation shell is rotatably mounted on the outer wall of the azeotropic container, a transmission mechanism is mounted in the oil-water separation cavity, and a water wiping mechanism is mounted on the transmission mechanism;

a drainage plate is arranged on one side, away from the bottom wall of the oil-water separation cavity, of the transmission mechanism, and the drainage plate is fixedly arranged on the inner wall of the oil-water separation shell;

and a water outlet is formed in the bottom wall of the oil-water separation shell and is communicated with the oil-water separation cavity.

Through adopting above-mentioned technical scheme, drive mechanism drives the water oil separating casing and takes place to rotate, and water oil separating casing pivoted while drives to scrape water mechanism and scrape water to the water that drips on the drainage plate, in time collects the water that removes the foam separation, avoids the water oil separating casing internal too much water of saving, and then influences the separation efficiency of benzene and water and the concentration of separation pure benzene.

Optionally, a guide plate is fixedly mounted on the drainage plate, and a reciprocating screw is fixedly mounted on the guide plate;

a plurality of drainage holes are uniformly formed in the drainage plate, and the drainage holes are arranged on the guide plate in a penetrating mode.

By adopting the technical scheme, the guide plate is arranged on the drainage plate to guide the dropped water, so that the water can flow down through the drainage plate; the reciprocating screw rod is fixedly arranged on the guide plate, so that the guide plate is driven to rotate while the drainage plate rotates, the guide plate rotates to drive the reciprocating screw rod to rotate, and the reciprocating screw rod rotates to drive the vibration block to move, so that the defoaming mechanism is controlled; through setting up the drainage hole, carry out prefilter to the water that drips, avoid removing the aquatic of dripping on foam board and the iron mesh foam board from filling and exist impurity, and then the influence is collected the filtration work.

Optionally, drive mechanism includes drive motor, drive motor fixed mounting is on the base, the fixed cover of having connected with first straight-tooth gear on the drive motor output shaft, the meshing of first straight-tooth gear one side is connected with the second straight-tooth gear, the fixed cover of second straight-tooth gear is on oil-water separation casing.

Through adopting above-mentioned technical scheme, the work of driving motor drives first straight-toothed gear and rotates, and first straight-toothed gear rotates and then drives the rotation of second straight-toothed gear, and the fixed cover of second straight-toothed gear connects on the water oil separating shell, and then drives water oil separating shell through driving motor work and rotate.

Optionally, the transmission mechanism further comprises a third spur gear, two sides of the third spur gear are symmetrically engaged and connected with transmission toothed plates, and the two symmetrically arranged transmission toothed plates are both fixedly mounted on the inner wall of the oil-water separation shell;

and a wiper mechanism is arranged on the third straight gear.

Through adopting above-mentioned technical scheme, the water oil separating casing rotates and then drives the driving toothed plate of installing in the water oil separating casing, and then realizes the control to third straight-teeth gear pivoted, rotates and then drives through the third straight-teeth gear and scrape water mechanism work, guarantees high-efficient benzene dewatering device's normal transmission.

Optionally, the wiper mechanism includes a rotating plate, the rotating plate is fixedly arranged on the third spur gear in a penetrating manner, and two guide grooves which are arranged in a centrosymmetric manner are formed in the rotating plate;

the bottom of the rotating plate is rotatably connected to a first bearing plate, and the first bearing plate is fixedly mounted on the bottom wall of the oil-water separation shell.

Optionally, sliding blocks are connected in the two guide grooves in a sliding manner, one ends of the two sliding blocks, which are far away from the guide grooves, are fixedly connected with connecting plates, one ends of the connecting plates, which are far away from the sliding blocks, are fixedly connected with scraping plates, and one ends of the scraping plates, which are far away from the connecting plates, are abutted against the bottoms of the drainage plates;

the side, close to each other, of each of the two connecting plates is fixedly connected with a telescopic rod, one end, far away from the connecting plates, of each telescopic rod is fixedly connected to a fixed shaft, and the fixed shafts penetrate through the rotating plates and the bottom wall of the oil-water separation shell;

and one end of the fixed shaft, which is far away from the telescopic rod, is fixedly arranged on the base.

Through adopting above-mentioned technical scheme, the third straight-teeth gear rotates and drives the rotor plate and rotate, and the rotor plate is spacing through the spout to the slider when pivoted for the slider takes place to remove in the telescopic link axis direction, removes and then drives the connecting plate through the slider and remove, and the connecting plate removes and drives the scraper blade and remove, and through the drainage plate rotation when the scraper blade removes, the realization scraper blade is swept the drainage plate bottom surface. Simultaneously, the first bearing plate is arranged to support the rotating plate, so that the rotating plate and the third straight gear can normally rotate under the driving of the transmission toothed plate.

Optionally, the bottom wall of the oil-water separation housing is rotatably connected to a second bearing plate, and the second bearing plate is fixedly mounted on the base.

Through adopting above-mentioned technical scheme, set up the second on oil water separating housing diapire and accept the board, play the supporting role to oil water separating housing, oil water separating housing can be normal rotation under drive motor's drive.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the dehydration pre-heater preheats azeotropy to the mixture of benzene and water tentatively, then preheat azeotropy thing of azeotropy benzene and water through the dehydration pre-heater tentatively and lead to the azeotropic dehydrator through the gas pocket, remove the foam through the azeotropy thing of defoaming mechanism benzene and water in the azeotropic dehydrator, after accomplishing the defoaming work, pure benzene gets into collection device through the gas outlet, accomplish the collection to pure benzene, the water that the defoaming produced gets into in oil water separator and collects it, accomplish the dehydration work to benzene, improve the benzene dehydration rate, simultaneously through setting up azeotropic evaporator and oil water separator, reduce the transformation operation degree of difficulty of benzene dehydrating unit, convenient operation installation;

2. the filling defoaming plate and the iron net defoaming plate are arranged, so that the water removal efficiency is improved, and meanwhile, the filling defoaming plate and the iron net defoaming plate are arranged on the inner wall of the defoaming shell, so that the filling defoaming plate and the iron net defoaming plate can be conveniently mounted and dismounted, and the difficulty in transformation operation is reduced;

3. set up vibration mechanism, rotate through reciprocal lead screw and drive the vibrations piece and take place the ascending reciprocating motion of vertical side, and then drive through the reciprocating motion of vibrations piece and fill defoaming board and iron wire net defoaming board and take place the ascending removal of vertical side in azeotropic container, improve the whereabouts volume of adhering to filling defoaming board and iron wire net defoaming board water-feeding through the removal of filling defoaming board and iron wire net defoaming board, improve defoaming efficiency, avoid adhering to the water of filling defoaming board and iron wire net defoaming board to exert an influence to the defoaming.

Drawings

FIG. 1 is a schematic diagram of structural connections of an embodiment of the present application;

FIG. 2 is a schematic view of the installation of an azeotropic vaporizer according to an embodiment of the present invention;

FIG. 3 is a schematic view of an azeotropic vaporizer and an oil-water separator according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of the internal structure of an azeotropic vaporizer according to an embodiment of the present application;

FIG. 5 is a schematic sectional view of an azeotropic vaporizer and an oil-water separator according to an embodiment of the present invention.

Description of reference numerals: 1. an azeotropic dehydrator; 2. a dehydration preheater; 3. an azeotropic vaporizer; 31. an azeotropic container; 311. an azeotropic chamber; 312. air holes; 313. an air outlet; 32. a defoaming mechanism; 321. a defoaming shell; 322. an iron net defoaming plate; 323. filling a defoaming plate; 324. a limiting hole; 33. a vibration mechanism; 331. a vibration block; 332. a reciprocating screw; 4. an oil-water separator; 41. a base; 42. an oil-water separation shell; 421. an oil-water separation chamber; 43. a water outlet; 44. a transmission mechanism; 441. a drive motor; 442. a first straight gear; 443. a second spur gear; 444. a transmission toothed plate; 445. a third spur gear; 45. a drainage plate; 451. a drainage hole; 452. a baffle; 46. a wiper mechanism; 461. a squeegee; 462. a connecting plate; 463. a slider; 464. a telescopic rod; 465. a fixed shaft; 466. a rotating plate; 467. a guide groove; 468. a first bearing plate; 469. a second bearing plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a high-efficient benzene dewatering device.

Referring to fig. 1, the high-efficiency benzene dehydration device comprises a dehydration preheater 2, a feeding port is formed in the dehydration preheater 2, an azeotropic dehydrator 1 is communicated with the dehydration preheater 2, the azeotropic dehydrator 1 is communicated with an azeotropic evaporator 3, a collecting device is communicated with the azeotropic evaporator 3, and an oil-water separator 4 is installed on the azeotropic evaporator 3.

High-efficient benzene dewatering device during operation, firstly add the mixture of benzene and water to dehydration pre-heater 2 in, the azeotropic is carried out tentatively to the mixture of benzene and water through dehydration pre-heater 2, later dehydration pre-heater 2 is leading-in to azeotropic dehydrator 1 with the preliminary azeotrope of benzene and water, azeotropic dehydrator 1 heats the azeotropy to the preliminary azeotrope of benzene and water, after the heating azeotropy is accomplished, azeotropic dehydrator 1 is leading-in to azeotropic vaporizer 3 with the azeotrope of benzene and water, azeotropic vaporizer 3 removes foam work to the azeotrope of benzene and water, accomplish behind the foam removal work, pure benzene is collected in collection device through 3 discharges of azeotropic vaporizer, oil water separator 4 collects and discharges the oil water mixture who forms after removing the foam process simultaneously, accomplish the dehydration work to benzene, improve the benzene dehydration rate, simultaneously through setting up azeotropic vaporizer 3 and oil water separator 4, reduce benzene dewatering device's the transformation operation degree of difficulty, convenient operation installation.

Referring to fig. 2 and 3, the azeotropic evaporator 3 includes an azeotropic container 31 with a plurality of gas holes 312 formed on the periphery, the azeotropic container 31 is communicated with the azeotropic dehydrator 1 through the gas holes 312, an azeotropic cavity 311 is formed in the azeotropic container 31, the azeotropic cavity 311 is communicated with the gas holes 312, a gas outlet 313 is formed on the top of the azeotropic cavity 311, the gas outlet 313 is communicated with a collecting device, and the collecting device is used for collecting benzene. The gas outlet 313 communicates with the azeotropic chamber 311. A foam removing mechanism 32 is arranged in the azeotropic cavity 311, the foam removing mechanism 32 is tightly attached to the inner wall of the azeotropic container 31, a vibration mechanism 33 is arranged on the foam removing mechanism 32, an oil-water separator 4 is arranged at one end of the azeotropic container 31 far away from the air outlet 313, and the downward inner diameter of the bottom of the inner wall of the azeotropic container 31 is gradually reduced and is in a horn shape.

Referring to fig. 3 and 4, the defoaming mechanism 32 includes a defoaming shell 321, the defoaming shell 321 is slidably mounted on the inner wall of the azeotropic container 31, an iron mesh defoaming plate 322 is fixedly mounted at one end of the defoaming shell 321 close to the air outlet 313, the iron mesh defoaming plate 322 is formed by carrying a plurality of layers of stainless steel wire meshes, a limiting hole 324 is formed in the center of the iron mesh defoaming plate 322, the cross section of the limiting hole 324 is square, and the vibration mechanism 33 is mounted in the limiting hole 324. A filling defoaming plate 323 is fixedly arranged at one end of the defoaming shell 321 far away from the air outlet 313, and the filling defoaming plate 323 is composed of a plurality of stainless steel plates with irregular ripples on the surfaces.

Referring to fig. 3 and 4, the vibration mechanism 33 includes a vibration block 331, the vibration block 331 is slidably mounted in the limiting hole 324, the vibration block 331 is sleeved on the reciprocating lead screw, the vibration block 331 is in threaded connection with the reciprocating lead screw 332, and one end of the reciprocating lead screw, which is far away from the vibration block 331, is mounted on the oil-water separator 4.

Azeotropic dehydrator 1 leads to in azeotropic chamber 311 with the azeotrope that benzene and water formed through gas pocket 312, later in the azeotrope that benzene and water formed through filling defoaming plate 323 and iron net defoaming plate 322 in proper order, benzene after filling defoaming plate 323 and iron net defoaming plate 322 defoaming gets into collection device through gas outlet 313 and collects, water in the azeotrope that benzene and water formed is attached to iron net defoaming plate 322 and is filled on defoaming plate 323, water is attached to and is condensed on iron net defoaming plate 322 and filling defoaming plate 323, drip to in oil water separator 4 under the action of gravity. Meanwhile, the reciprocating screw rod 332 is driven by the oil-water separator 4 to rotate, under the limiting effect of the limiting hole 324 on the vibration block 331, the reciprocating screw rod 332 rotates to drive the vibration block 331 to move in the direction of the axis of the reciprocating screw rod 332, when the vibration block 331 moves, the foam removing mechanism 32 is pushed to move in the vertical direction in the azeotropic cavity 311, water attached to the iron net foam removing plate 322 and the filling foam removing plate 323 is vibrated and dripped into the oil-water separator 4, separation of benzene and water is completed, meanwhile, water attached to the iron net foam removing plate 322 and the filling foam removing plate 323 is introduced into the oil-water separator 4 in time, and the phenomenon that the azeotrope separation effect and efficiency formed by benzene and water are influenced by too much water attached to the iron net foam removing plate 322 and the filling foam removing plate 323 is avoided.

Referring to fig. 3 and 5, the oil-water separator 4 includes a base 41, the base 41 is fixedly mounted on the oil-water separation station, the second receiving plate 469 is fixedly mounted on the base 41, one end of the second receiving plate 469 far away from the base 41 is rotatably connected with an oil-water separation housing 42, one end of the oil-water separation housing 42 far away from the base 41 is rotatably connected to the outer wall of the azeotropic container 31, an oil-water separation cavity 421 is formed in the oil-water separation housing 42, a water outlet 43 is formed in the bottom wall of the oil-water separation housing 42, and the water outlet 43 is communicated with the oil-water separator 4. The drainage plate 45 is installed in the oil-water separation chamber 421, the drainage plate 45 is fixedly installed on the inner wall peripheral side of the oil-water separation housing 42, the water scraping mechanism 46 is arranged below the drainage plate 45, the water scraping mechanism 46 is installed in the oil-water separation chamber 421, and the transmission mechanism 44 is further arranged on the oil-water separation housing 42.

Referring to fig. 3 and 5, drainage plate 45 fixed mounting is on oil-water separation casing 42 inner wall, drainage plate 45 and the inseparable laminating of oil-water separation casing 42 inner wall, several drainage hole 451 has evenly been seted up on drainage plate 45, several drainage hole 451 runs through the setting on drainage plate 45, the one end central point that the base plate was kept away from to drainage plate 45 puts fixed mounting has guide plate 452, guide plate 452 is the round platform form, the one end fixed mounting that drainage plate 45 was kept away from to guide plate 452 has reciprocal lead screw 332, the one end fixed mounting that vibrations piece 331 was kept away from to reciprocal lead screw 332 is on guide plate 452.

Referring to fig. 3 and 5, the transmission mechanism 44 includes a transmission motor 441, the transmission motor 441 is fixedly mounted on the base plate, the transmission motor 441 can realize intermittent forward rotation and reverse rotation, the output end of the transmission motor 441 is fixedly arranged on the first straight gear 442 in a penetrating manner, one side of the first straight gear 442 is engaged and connected with a second straight gear 443, the second straight gear 443 is fixedly sleeved and connected on the oil-water separation housing 42, two transmission tooth plates 444 symmetrically arranged are fixedly mounted on the inner wall of the oil-water separation housing 42, a third straight gear 445 is engaged and connected on the two transmission tooth plates 444, and the inner wall of the third straight gear 445 is provided with the water wiping mechanism 46.

Referring to fig. 3 and 5, the wiper assembly includes a rotating plate 466, the rotating plate 466 is fixedly installed on the inner wall of the third spur gear 445, two centrosymmetric guide grooves 467 are formed in the rotating plate 466, the two guide grooves 467 are arranged on the rotating plate 466 in a penetrating manner, the two guide grooves 467 are both spiral-shaped, sliders 463 are arranged in the two guide grooves 467 in a sliding manner, one ends of the two sliders 463 far away from the sliding grooves are both fixedly connected with a connecting plate 462, one ends of the two connecting plates 462 far away from the sliders 463 are both fixedly connected with a scraper 461, one ends of the two scraper 461 far away from the connecting plate 462 are both abutted against the bottom surface of the drainage plate 45, one sides of the two connecting plates 462 are both fixedly connected with telescopic rods 464, one ends of the two telescopic rods 464 far away from the connecting plate 462 are fixedly connected to the fixed shaft 465, the fixed shaft 465 is arranged on the rotating plate 465 in a penetrating manner, the rotating plate 466 is arranged on the same axis with the fixed shaft 465 in a rotating manner, the rotating plate 466 is rotatably connected with the fixed shaft 465, one end of the fixed shaft 466 arranged on the bottom wall of the oil-water separation shell 42 and is fixedly installed on the base 41, and the fixed shaft 466 is rotatably connected with the oil-water separation shell 42. The bottom of the rotating plate 466 is rotatably connected to the first receiving plate 468, and one end of the first receiving plate 468, which is far away from the rotating plate 466, is fixedly mounted on the bottom wall of the oil-water separation housing 42. The first receiving plate 468 and the second receiving plate 469 are both hollow cylinders, and the inner diameters of the first receiving plate 468 and the second receiving plate 469 are both larger than the section diameter of the fixing shaft 465.

The water after the separation of the azeotropic evaporator 3 drops into the oil-water separator 4 from the azeotropic evaporator 3, and the water after the separation of benzene drops onto the drainage plate 45 and the guide plate 452 under the drainage of the azeotropic container 31, and the water on the guide plate 452 flows to the upper end of the drainage plate 45 under the action of gravity, and is drained to the lower end of the drainage plate 45 through the drainage hole 451. Meanwhile, the transmission mechanism 44 works, the transmission motor 441 rotates positively, the output shaft of the transmission motor 441 drives the first straight gear 442 to rotate clockwise, the first straight gear 442 rotates clockwise to drive the second straight gear 443 to rotate anticlockwise, the second straight gear 443 rotates anticlockwise to drive the oil-water separation shell 42 to rotate anticlockwise, the oil-water separation shell 42 rotates anticlockwise to drive the two transmission toothed plates 444 to rotate anticlockwise, the two transmission toothed plates rotate anticlockwise to drive the third straight gear 445 to rotate clockwise, the third straight gear 445 rotates clockwise to drive the rotating plate 466 to rotate clockwise, the rotating plate 466 rotates clockwise while driving the sliding block 463 to move in the axial direction of the telescopic rod 464 through the guide groove 467, and the sliding movement further drives the scraping plate 461 to move. Meanwhile, the oil-water separation shell 42 rotates anticlockwise to drive the drainage plate 45 fixedly mounted on the inner wall of the oil-water separation shell 42 to rotate anticlockwise, the drainage plate 45 rotates anticlockwise to drive the scraper 461 to scrape the bottom surface of the drainage plate 45, water condensed on the bottom surface of the drainage plate 45 is scraped, and the bottom wall of the oil-water separation shell 42 is collected. After the guide groove 467 drives slider 463 and moves to extreme position, drive motor 441 begins to rotate reversely, drive motor 441 output shaft drives first spur gear 442 anticlockwise rotation, first spur gear 442 anticlockwise rotation drives second spur gear 443 clockwise rotation, second spur gear 443 clockwise rotation drives oil-water separation casing 42 clockwise rotation simultaneously, oil-water separation casing 42 clockwise rotation drives two transmission pinion 444 clockwise rotation simultaneously, two transmission pinion clockwise rotation drives third spur gear 445 anticlockwise rotation, third spur gear 445 anticlockwise rotation drives rotating plate 466 anticlockwise rotation, rotating plate 466 anticlockwise rotation simultaneously drives slider 463 through guide groove 467 and takes place to remove on telescopic link 464 axial direction, sliding movement and then drive scraper blade 461 and take place to remove. Simultaneously oil-water separation casing 42 clockwise rotation drives drainage plate 45 clockwise rotation of fixed mounting on oil-water separation casing 42 inner wall, drives scraper blade 461 when drainage plate 45 clockwise rotation and scrapes drainage plate 45 bottom surface, scrapes the water of condensing at drainage plate 45 bottom surface to collect at oil-water separation casing 42 diapire, the water of collecting on oil-water separation casing 42 diapire passes through delivery port 43 and discharges, accomplishes oil-water separation work.

The implementation principle of the high-efficiency benzene dehydration device in the embodiment of the application is as follows: high-efficient benzene dewatering device during operation, dehydration pre-heater 2 at first preheats the azeotropy to the mixture of benzene and water tentatively, later dehydration pre-heater 2 is leading-in to azeotropic dehydrator 1 with the preliminary azeotrope of benzene and water, azeotropic dehydrator 1 heats the azeotropy to the preliminary azeotrope of benzene and water, after the heating azeotropy is accomplished, azeotropic dehydrator 1 is leading-in to azeotropic evaporator 3 with the azeotrope of benzene and water, azeotropic evaporator 3 removes the foam work to the azeotrope of benzene and water, accomplish and remove the foam work after, pure benzene is discharged and is collected in collection device through azeotropic evaporator 3, simultaneously under azeotropic container 31's drainage effect, water after separating with the benzene gets into oil water separator 4 in, oil water separator 4 collects and discharges the oil water mixture that forms after removing the foam process, accomplish the dehydration work to benzene, improve the benzene dehydration rate, simultaneously through setting up azeotropic evaporator 3 and oil water separator 4, reduce benzene dewatering device's the transformation operation degree of difficulty, convenient operation installation.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. A high-efficient benzene dewatering device which characterized in that: the device comprises a dehydration preheater (2), wherein the dehydration preheater (2) is used for primarily heating an azeotrope formed by benzene and water, the dehydration preheater (2) is communicated with an azeotropic dehydrator (1), the azeotropic dehydrator (1) is used for heating and azeotropy the azeotrope formed by the benzene and the water, the azeotropic dehydrator (1) is communicated with an azeotropic evaporator (3), and an oil-water separator (4) is arranged on the azeotropic evaporator (3);

the azeotropic evaporator (3) comprises an azeotropic container (31) with an azeotropic cavity (311) arranged inside, a plurality of uniformly distributed air holes (312) are arranged on the peripheral side of the azeotropic container (31), and the air holes (312) are communicated with the dehydration preheater (2);

a defoaming mechanism (32) for defoaming the azeotrope formed by the benzene and the water is arranged in the azeotropic cavity (311);

the top of the azeotropic cavity (311) is communicated with an air outlet (313), the air outlet (313) is communicated with a collecting device, and the collecting device is used for collecting pure benzene.

2. The high efficiency benzene dehydration apparatus of claim 1 characterized in that: the defoaming mechanism (32) comprises a defoaming shell (321), the defoaming shell (321) is slidably mounted on the inner wall of the azeotropic container (31), a filling defoaming plate (323) is fixedly mounted on the inner wall of the defoaming shell (321), an iron mesh defoaming plate (322) is arranged at one end, close to the air outlet (313), of the filling defoaming plate (323), and the iron mesh defoaming plate (322) is fixedly mounted on the inner wall of the defoaming shell (321);

spacing hole (324) have been seted up on iron net foam removing plate (322), install vibrations mechanism (33) in spacing hole (324).

3. The high efficiency benzene dehydration apparatus of claim 2 characterized in that: the vibration mechanism (33) comprises a vibration block (331), the vibration block (331) is abutted against the inner wall periphery of the limiting hole (324), the vibration block (331) is in threaded connection with a reciprocating lead screw (332), and one end, far away from the vibration block (331), of the reciprocating lead screw (332) is installed on the oil-water separator (4).

4. The high efficiency benzene dehydration apparatus of claim 3 characterized in that: the oil-water separator (4) comprises a base (41), wherein an oil-water separation shell (42) with an oil-water separation cavity (421) formed inside is arranged on the base (41), one end, far away from the base (41), of the oil-water separation shell (42) is rotatably installed on the outer wall of the azeotropic container (31), a transmission mechanism (44) is installed in the oil-water separation cavity (421), and a water scraping mechanism (46) is installed on the transmission mechanism (44);

a drainage plate (45) is arranged on one side, away from the bottom wall of the oil-water separation cavity (421), of the transmission mechanism (44), and the drainage plate (45) is fixedly arranged on the inner wall of the oil-water separation shell (42);

a water outlet (43) is formed in the bottom wall of the oil-water separation shell (42), and the water outlet (43) is communicated with the oil-water separation cavity (421).

5. The high efficiency benzene dehydration apparatus according to claim 4, characterized in that: a guide plate (452) is fixedly mounted on the drainage plate (45), and a reciprocating lead screw (332) is fixedly mounted on the guide plate (452);

a plurality of drainage holes (451) are uniformly formed in the drainage plate (45), and the drainage holes (451) penetrate through the drainage plate (452).

6. The high efficiency benzene dehydration apparatus of claim 4 characterized in that: the transmission mechanism (44) comprises a transmission motor (441), the transmission motor (441) is fixedly installed on the base (41), a first straight gear (442) is fixedly sleeved on an output shaft of the transmission motor (441), one side of the first straight gear (442) is connected with a second straight gear (443) in a meshed mode, and the second straight gear (443) is fixedly sleeved on the oil-water separation shell (42).

7. The high efficiency benzene dehydration apparatus of claim 6 characterized in that: the transmission mechanism (44) further comprises a third straight gear (445), transmission toothed plates (444) are symmetrically meshed and connected to two sides of the third straight gear (445), and the two symmetrically arranged transmission toothed plates (444) are fixedly mounted on the inner wall of the oil-water separation shell (42);

and a wiper mechanism (46) is arranged on the third straight gear (445).

8. The high efficiency benzene dehydration apparatus according to claim 7, characterized in that: the wiper mechanism (46) comprises a rotating plate (466), the rotating plate (466) is fixedly arranged on a third spur gear (445) in a penetrating mode, and two guide grooves (467) which are arranged in a central symmetry mode are formed in the rotating plate (466);

the bottom of the rotating plate (466) is rotatably connected to a first bearing plate (468), and the first bearing plate (468) is fixedly arranged on the bottom wall of the oil-water separation shell (42).

9. The high efficiency benzene dehydration apparatus of claim 8 characterized in that: sliding blocks (463) are connected in the two guide grooves (467) in a sliding mode, one ends, far away from the guide grooves (467), of the two sliding blocks (463) are fixedly connected with connecting plates (462), one ends, far away from the sliding blocks (463), of the connecting plates (462) are fixedly connected with scraping plates (461), and one ends, far away from the connecting plates (462), of the scraping plates (461) are abutted to the bottoms of the drainage plates (45);

the two connecting plates (462) are fixedly connected with telescopic rods (464) on the sides close to each other, one ends, far away from the connecting plates (462), of the telescopic rods (464) are fixedly connected to fixed shafts (465), and the fixed shafts (465) penetrate through the rotating plates (466) and the bottom wall of the oil-water separation shell (42);

one end of the fixed shaft (465) far away from the telescopic rod (464) is fixedly arranged on the base (41).

10. The high efficiency benzene dehydration apparatus according to claim 4, characterized in that: the bottom wall of the oil-water separation shell (42) is rotatably connected to a second bearing plate (469), and the second bearing plate (469) is fixedly installed on the base (41).

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