CN114196434A

CN114196434A - Light aromatic hydrogenation transformation equipment

Info

Publication number: CN114196434A
Application number: CN202210149154.1A
Authority: CN
Inventors: 袁安; 张瑞瑞; 黄善彬
Original assignee: Dongying Dongze Chemical Technology Co ltd
Current assignee: Dongying Dongze Chemical Technology Co ltd
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-03-18
Anticipated expiration: 2042-02-18
Also published as: CN114196434B

Abstract

The invention relates to the technical field of chemical production, in particular to light aromatic hydrocarbon hydrogenation transformation equipment which comprises a mixing device, a heating assembly, a transportation assembly, a first cracking assembly, a flushing assembly, a second cracking device and a material conveying assembly, wherein a connecting pipe for connection is arranged between the mixing device and the heating assembly, the heating assembly is arranged between the transportation assembly and the first cracking assembly and is used for connection, the flushing assembly is arranged between the first cracking assembly and the second cracking device and is connected with the first cracking assembly and the second cracking device, the material conveying assembly is arranged at one end of the flushing assembly and one end of the second cracking device and is connected with the flushing assembly and the second cracking device, the mixing device comprises a mixing box, a stirring assembly and a driving assembly, the invention can elute a catalyst by using essential oil containing carbon as a byproduct, and then reactivate the catalyst under the regulation of high temperature, thereby prolonging the service life of the catalyst, so that the catalyst does not need to be replaced too frequently in the whole hydrogenation process.

Description

Light aromatic hydrogenation transformation equipment

Technical Field

The invention relates to the technical field of chemical production, in particular to light aromatic hydrocarbon hydrogenation transformation equipment.

Background

The light aromatic hydrocarbon is a mixture of nine-carbon aromatic hydrocarbon with complex components, and the source of the light aromatic hydrocarbon mainly comprises the following two types, namely, the light aromatic hydrocarbon comes from xylene tower bottom oil of a reforming device of an oil refinery, is called as reformed light aromatic hydrocarbon, has relatively simple composition, contains a large amount of unsym-trimethyl benzene, methyl ethyl benzene, mesitylene, hemimellitene and the like, is a precious resource for developing fine chemical engineering, and has very high economic value; and secondly, the byproduct from ethylene production contains a large amount of unsaturated components, the light aromatic hydrocarbon in the cracked heavy aromatic hydrocarbon accounts for about 80 percent, the distillation range is 140-220 ℃, the components are very complex and have close boiling points, the difficulty in fine separation is high, the method is not suitable for separation and utilization, most of the byproduct cracked heavy aromatic hydrocarbon light aromatic hydrocarbon fraction of the ethylene device in China at present is used as fuel, and the economic benefit is not high.

The invention with the publication number of CN109181750A relates to the technical field of chemical distillation equipment, and discloses a light aromatic hydrocarbon hydrogenation transformation device and an operation method thereof. According to the light aromatic hydrocarbon hydrogenation transformation device and the operation method thereof, pre-hydrogenation is carried out on the inside of the de-heavy tower by utilizing the pre-hydrogenation reactor, diene is saturated by utilizing the pre-hydrogenation reaction, coking on the inner wall of the de-heavy tower caused by the follow-up hydrogenation reaction is avoided, the efficiency of main hydrogenation treatment is unsaturated, after the coking generated by pre-hydrogenation is cleaned, unsaturated hydrocarbon is saturated through the main hydrogenation reaction, S, N, O and impurities are removed, the quality of petroleum is greatly guaranteed, and the practicability is increased.

The above invention also has the following disadvantages: although the service life of the catalyst can be ensured by reducing the generation of coking in the above-mentioned device process, the deactivation of the catalyst is also caused by alkali poisoning.

Disclosure of Invention

The invention aims to provide light aromatic hydrocarbon hydrogenation transformation equipment to solve the problems in the background technology.

The technical scheme of the invention is as follows: the utility model provides a light aromatics hydrogenation transformation equipment, includes mixing arrangement, heating element, transportation subassembly, first cracking subassembly, washes subassembly, second cracker and passes the material subassembly, be provided with the connecting pipe that is used for connecting between mixing arrangement and the heating element, the heating element sets up and just is used for connecting between transportation subassembly and the first cracking subassembly, it sets up between first cracking subassembly and second cracker and the three is connected to wash the subassembly, it sets up and is connected at the one end position department of washing subassembly and second cracker to pass the material subassembly and the three.

Preferably, the mixing device comprises a mixing box, a stirring assembly and a driving assembly, the driving assembly is arranged at the top of the mixing box, the stirring assembly is arranged inside the mixing box, a raw material inlet pipe and a catalyst inlet pipe are respectively inserted into the non-center position of the top of the mixing box, a liquid flow pump is arranged at the top of the raw material inlet pipe, an outlet hole is formed in the bottom of the mixing box, an electromagnetic valve is arranged on the inner wall of the outlet hole, and one end of the connecting pipe is connected with the electromagnetic valve through a flange.

Preferably, the driving assembly comprises a fixed frame, a first transmission bevel gear, a first main bevel gear, a second transmission bevel gear and a fourth servo motor, the fixed frame is fixed on the top of the mixing box, the fourth servo motor is fixed on the inner wall of one side of the fixed frame, a rotating hole is formed in the middle of the top of the mixing box, a rotating cylinder is rotatably installed on the inner wall of the rotating hole, the first transmission bevel gear is rotatably installed on the top of the inner side wall of the fixed frame, the second transmission bevel gear is fixed on the top of the rotating cylinder, the main bevel gear is fixed on an output shaft of the fourth servo motor, and the main bevel gear is respectively meshed with the first transmission bevel gear and the second transmission bevel gear.

Preferably, the stirring subassembly includes agitator, a plurality of stirring board one and a plurality of extension rod, and is a plurality of the one end of extension rod is fixed and is being equidistant annular distribution in the bottom of a rotation section of thick bamboo and using the bottom center as the centre of a circle, and is a plurality of another end bottom at the extension rod is fixed to an average of stirring board, the agitator includes dwang and a plurality of stirring board two of fixing on the dwang periphery wall, the dwang rotates to be installed on the inner wall of a rotation section of thick bamboo and the top end is fixed in the bottom of transmission bevel gear one.

Preferably, heating element includes heating furnace, draught fan and play tuber pipe, another end of connecting pipe is pegged graft on the lateral wall of heating furnace, the inside top at the heating furnace is installed to the input of draught fan, it cup joints on the output of draught fan to go out the tuber pipe.

Preferably, the transportation assembly comprises a transportation pump, a first communication pipe and a second communication pipe, one end of the first communication pipe and one end of the second communication pipe are respectively connected to the input end and the output end of the transportation pump through flanges, and the other end of the first communication pipe is inserted into the bottom end of the side wall of the heating furnace.

Preferably, the first cracking assembly comprises a first cracking barrel, a separation assembly and a pressure reduction assembly, the first cracking barrel is of a double-step structure, the upper part and the lower part of the first cracking barrel are respectively a large-diameter barrel and a small-diameter barrel, a cavity is formed in the outer wall of the first cracking barrel, the other end of the communicating pipe is inserted into the bottom of the inner side wall of the cavity of the first cracking barrel, a first hydrogen inlet pipe is inserted into the inner side wall of the cavity of the first cracking barrel, a first gas flow pump is installed at the other end of the first hydrogen inlet pipe through a flange, a second outlet pipe is inserted into the inner side wall of the cavity of the first cracking barrel, the second outlet pipe penetrates through the outer wall of the cavity, a first filter screen is fixed on the inner wall of the cavity, the separation assembly comprises a first servo motor, a first spiral conveying rod and a plurality of sweeping plates, the spiral conveying rod is arranged in the first cracking barrel, the first servo motor is fixed at the bottom of the outer wall of the first cracking barrel, the first spiral conveying rod is fixed on an output shaft of the first servo motor, the plurality of sweeping plates are fixed at the top of the first spiral conveying rod and are in contact with the inner wall of the bottom of the large-diameter cylinder, the pressure reducing assembly comprises a movable cover, a first limiting plate, a fixed column, a spring, a second limiting plate and a telescopic cylinder, the outer wall of the movable cover is fixed with mounting plates I which are distributed equidistantly, the outer peripheral wall of the large-diameter cylinder of the first cracking cylinder is fixed with mounting plates II which are distributed equidistantly, the first mounting plate and the second mounting plate correspond to each other one by one, the tops of the first mounting plate and the second mounting plate are provided with sliding holes, the fixed columns are slidably mounted on the inner walls of the sliding holes, the first limiting plate and the second limiting plate are respectively fixed on the top end and the bottom end of the fixed column, the spring is sleeved on the outer peripheral wall of the fixed column, the spring is located between the second mounting plate and the second limiting plate, and two ends of the telescopic cylinder are fixed to the top of the outer wall of the large-diameter cylinder of the first cracking cylinder and the bottom of the movable cover respectively.

Preferably, one end of the air outlet pipe is inserted on the outer side wall of the cavity of the first cracking cylinder, the outer side wall of the cavity of the first cracking cylinder is provided with an air outlet,

preferably, the flushing component comprises a flushing tank, a rotating framework, a servo motor II, a communicating pipe III, a plurality of filter screens II and a temperature control component I, an upper inclined barrel is inserted into the top of the flushing tank, the top of the upper inclined barrel is inserted into the bottom of the peripheral wall of the large-diameter barrel of the first cracking barrel, the rotating framework comprises a cylindrical rod and partition plates fixed on the peripheral wall of the cylindrical rod at equal intervals, the filter screens II are averagely fixed on the same end of two adjacent partition plates, one end of the cylindrical rod is movably arranged on the inner wall of one side of the flushing tank, the servo motor II is fixed on the outer wall of the flushing tank, an output shaft is fixed with the other end of the cylindrical rod, the temperature control component I is arranged on the outer wall of the flushing tank, the temperature control component I comprises a temperature controller, a heater, a cooler and a control element, and the temperature controller, the heater and the cooler are all electrically connected with the control element, the outlet pipe is inserted and connected to the bottom end of the outer wall of one side of the flushing tank, the communicating pipe three is inserted and connected to the bottom end of the outer wall of the other side of the flushing tank and aligned with the outlet pipe, the second cracking device comprises a second cracking cylinder, an electromagnetic throttle valve, a hydrogen inlet pipe two, a discharge pipe, a temperature control component two and an inlet pipe, the inlet pipe is inserted and connected to the outer wall of one side of the second cracking cylinder and communicated with the communicating pipe in three phases, the temperature control component two and the temperature control component one are in the same specification and are arranged on the outer wall of the inlet pipe, the hydrogen inlet pipe two is inserted and connected to the top end of the outer wall of one side of the second cracking cylinder, the electromagnetic throttle valve is connected to one end of the hydrogen inlet pipe two through a flange, the discharge pipe is arranged on the outer wall of one side of the second cracking cylinder, and an air pressure sensor is arranged at the top of the inner wall of the second cracking cylinder.

Preferably, the material conveying assembly comprises a material conveying barrel, a spiral conveying rod II, a servo motor III and a lower inclined barrel, the material conveying barrel is transversely placed, the outer wall of one side of one end of the material conveying barrel is communicated with the bottom end of the outer wall of one end of the flushing box, the lower inclined barrel is inserted into the bottom of the outer wall of the other end of the material conveying barrel, the bottom of the material conveying barrel is inserted into the outer wall of one side of the second cracking barrel, the spiral conveying rod II is located inside the material conveying barrel, the servo motor III is fixed on the outer wall of one side of the material conveying barrel, and one end head of the spiral conveying rod II is fixed on the servo motor III.

The invention provides light aromatic hydrocarbon hydrogenation transformation equipment through improvement, and compared with the prior art, the light aromatic hydrocarbon hydrogenation transformation equipment has the following improvements and advantages:

one is as follows: the catalyst can be eluted by using the by-product carbon-containing essential oil, and then the catalyst is reactivated under high-temperature regulation, so that the influence of inactivation of the catalyst due to alkali poisoning is eliminated, the service life of the catalyst is prolonged, and the catalyst does not need to be replaced too frequently in the whole hydrogenation process;

the second step is as follows: according to the invention, raw oil and a metal catalyst are placed in a mixing box, a servo motor IV enables a main bevel gear to rotate, the main bevel gear drives a transmission bevel gear I and a transmission bevel gear II to rotate, the rotation directions of the transmission bevel gear I and the transmission bevel gear II are opposite, and the transmission bevel gear I and the transmission bevel gear II respectively drive a stirrer and a stirring plate I to rotate, so that internal and external stirring is realized, the mixing degree of the raw oil placed in the mixing box and the metal catalyst can be increased by an internal and external stirring mode, the mixing time can be shortened without long-time mixing, and the mixing efficiency is improved;

and thirdly: the mixture is filled into the first cracking cylinder, at the moment, the volume of the first cracking cylinder is unchanged, so that the gas is compressed, the pressure intensity is increased, the movable cover 401 is pushed upwards to move upwards, the spring 405 is compressed, the volume of the whole first cracking cylinder 410 is increased, the capacity is expanded to perform partial pressure, and the normal pressure state is ensured, so that the reaction in the first cracking cylinder is ensured to be performed under the normal pressure state.

Drawings

The invention is further explained below with reference to the figures and examples:

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

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is an enlarged schematic view of FIG. 2 at A;

FIG. 4 is an enlarged schematic view of FIG. 2 at B;

FIG. 5 is a front cut-away schematic view of the present invention;

FIG. 6 is an enlarged schematic view of FIG. 5 at C;

FIG. 7 is a schematic elevation view of the present invention;

FIG. 8 is an enlarged partial view of FIG. 7 taken along line A-A;

fig. 9 is an enlarged schematic view of fig. 7 at B-B.

Description of reference numerals:

1. a mixing device; 101. a mixing box; 102. a first stirring plate; 103. a stirrer; 104. an extension rod; 105. an electromagnetic valve; 106. a connecting pipe; 107. feeding the raw materials into a pipe; 108. a liquid flow pump; 109. a fixed frame; 110. a first transmission bevel gear; 111. a main bevel gear; 112. a second transmission bevel gear; 2. a heating assembly; 201. heating furnace; 202. an induced draft fan; 203. an air outlet pipe; 3. a transport assembly; 301. a transport pump; 302. a first communicating pipe; 303. a second communicating pipe; 4. a first cracking assembly; 401. moving the cover; 402. a first limiting plate; 403. fixing a column; 404. a first mounting plate; 405. a spring; 406. a second mounting plate; 407. a second limiting plate; 408. a telescopic cylinder; 409. sweeping the board; 410. a first cracker cartridge; 411. a first filter screen; 412. a first spiral conveying rod; 413. a cavity; 414. a first servo motor; 415. a first hydrogen inlet pipe; 416. a gas flow pump; 5. a flushing assembly; 501. a flushing tank; 502. rotating the framework; 503. a servo motor II; 504. a third communicating pipe; 505. a second filter screen; 506. a first temperature control component; 507. an upper inclined cylinder; 6. a second cracking unit; 601. a second cracker cartridge; 602. an electromagnetic throttle valve; 603. a second hydrogen inlet pipe; 604. a discharge pipe; 605. a second temperature control component; 606. an inlet pipe; 7. a material conveying component; 701. a material conveying barrel; 702. a second spiral conveying rod; 703. a servo motor III; 704. a downward inclined cylinder.

Detailed Description

The present invention is described in detail below, and technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides light aromatic hydrocarbon hydrogenation transformation equipment through improvement, and the technical scheme of the invention is as follows:

as shown in fig. 1 to 9, a light aromatic hydrocarbon hydrogenation transformation device includes a mixing device 1, a heating assembly 2, a transportation assembly 3, a first cracking assembly 4, a flushing assembly 5, a second cracking device 6 and a material transfer assembly 7, a connecting pipe 106 for connection is arranged between the mixing device 1 and the heating assembly 2, the heating assembly 2 is arranged between the transportation assembly 3 and the first cracking assembly 4 and is used for connection, the flushing assembly 5 is arranged between the first cracking assembly 4 and the second cracking device 6 and is connected with the first cracking assembly 4 and the second cracking device 6, and the material transfer assembly 7 is arranged at one end of the flushing assembly 5 and the second cracking device 6 and is connected with the first cracking assembly 4 and the second cracking device 6.

Supplementary explanation is made on the above structure: the mixing device 1 is used for mixing raw oil and a catalyst; the heating component 2 is used for heating the mixture; the transportation component 3 is used for liquid transportation; the first cracking assembly 4 is used for a first cracking reaction; the washing component 5 is used for washing the catalyst; the second cracking device 6 is used for the second cracking reaction; the transfer assembly 7 transports the catalyst in the wash assembly 5 to the second cracking unit 6.

Further, the mixing device 1 comprises a mixing box 101, a stirring assembly and a driving assembly, the driving assembly is arranged at the top of the mixing box 101, the stirring assembly is arranged inside the mixing box 101, a raw material inlet pipe 107 and a catalyst inlet pipe are respectively inserted at the non-center position of the top of the mixing box 101, a liquid flow pump 108 is arranged at the top of the raw material inlet pipe 107, an outlet hole is formed at the bottom of the mixing box 101, an electromagnetic valve 105 is arranged on the inner wall of the outlet hole, one end of a connecting pipe 106 is connected with the electromagnetic valve 105 through a flange, the driving assembly comprises a fixed frame 109, a first transmission bevel gear 110, a main bevel gear 111, a second transmission bevel gear 112 and a fourth servo motor, the fixed frame 109 is fixed at the top of the mixing box 101, the fourth servo motor is fixed on the inner wall on one side of the fixed frame 109, a rotating hole is formed in the middle part of the top of the mixing box 101, a rotating cylinder is rotatably arranged on the inner wall of the rotating hole, the first transmission bevel gear 110 is rotatably mounted on the top of the inner side wall of the fixed frame 109, the second transmission bevel gear 112 is fixed on the top of the rotating cylinder, the main bevel gear 111 is fixed on an output shaft of the fourth servo motor, the main bevel gear 111 is respectively meshed with the first transmission bevel gear 110 and the second transmission bevel gear 112, the stirring assembly comprises a stirrer 103, a plurality of first stirring plates 102 and a plurality of extension rods 104, one end of each extension rod 104 is fixed at the bottom of the rotating cylinder and is annularly distributed at equal intervals by taking the center of the bottom as the center of a circle, the first stirring plates 102 are averagely fixed at the bottom of the other end of the extension rod 104, the stirrer 103 comprises a rotating rod and a plurality of second stirring plates fixed on the outer peripheral wall of the rotating cylinder, the rotating rod is rotatably mounted on the inner wall of the rotating cylinder, and the top end is fixed at the bottom of the first transmission bevel gear 110.

By means of the structure, the following effects are achieved: raw oil and a metal catalyst are placed in a mixing box 101, a servo motor drives a main bevel gear 111 to rotate, the main bevel gear 111 drives a first transmission bevel gear 110 and a second transmission bevel gear 112 to rotate, the rotation directions of the first transmission bevel gear 110 and the second transmission bevel gear 112 are opposite, and the first transmission bevel gear 110 and the second transmission bevel gear 112 respectively drive a stirrer 103 and a stirring plate 102 to rotate, so that internal and external stirring is realized, the mixing time is shortened, and the mixing efficiency is improved.

Further, the heating assembly 2 comprises a heating furnace 201, an induced draft fan 202 and an air outlet pipe 203, the other end of the connecting pipe 106 is inserted into the side wall of the heating furnace 201, the input end of the induced draft fan 202 is installed above the inside of the heating furnace 201, and the air outlet pipe 203 is sleeved on the output end of the induced draft fan 202.

By means of the structure, the following effects are achieved: the mixed mixture enters the heating furnace 201 through the connecting pipe 106, the heating furnace 201 is the prior art, the detailed working principle is not explained here, the heating furnace 201 heats the mixture, the temperature of hydrogenation should be controlled between three hundred sixty degrees centigrade and four hundred fifty degrees centigrade by referring to encyclopedic data, the heating time is controlled, and the generation of coking is prevented.

Further, the transportation assembly 3 comprises a transportation pump 301, a first communication pipe 302 and a second communication pipe 303, wherein one end of the first communication pipe 302 and one end of the second communication pipe 303 are respectively connected to an input end and an output end of the transportation pump 301 through flanges, and the other end of the first communication pipe 302 is inserted into the bottom end of the side wall of the heating furnace 201.

By means of the structure, the following effects are achieved: the transport pump 301 sucks the mixture through the first communication pipe 302 and transports the mixture to the first cracker cartridge 410 through the second communication pipe 303.

Further, the first cracking assembly 4 comprises a first cracking cylinder 410, a separating assembly and a pressure reducing assembly, the first cracking cylinder 410 is of a double-step structure, the upper part and the lower part of the first cracking cylinder are respectively a large-diameter cylinder and a small-diameter cylinder, a cavity 413 is formed in the outer wall of the first cracking cylinder 410, the other end of the communicating pipe 303 is inserted into the bottom end of the inner side wall of the cavity 413 of the first cracking cylinder 410, a first hydrogen inlet pipe 415 is inserted into the inner side wall of the cavity 413 of the first cracking cylinder 410, a gas flow pump 416 is installed at the other end of the first hydrogen inlet pipe 415 through a flange, an outlet pipe is inserted into the inner side wall of the cavity 413 of the first cracking cylinder 410, the outlet pipe penetrates through the outer wall of the cavity 413 and is fixed with a first filter screen 411 on the inner wall, the separating assembly comprises a first servo motor 414, a first spiral conveying rod 412 and a plurality of sweeping plates 409, the first spiral conveying rod 412 is arranged in the first cracking cylinder 410, the first servo motor 414 is fixed at the bottom of the outer wall of the first cracking cylinder 410, the first spiral conveying rod 412 is fixed on the output shaft of the first servo motor 414, the plurality of sweeping plates 409 are fixed at the top of the first spiral conveying rod 412 and are in contact with the inner wall of the bottom of the large-diameter cylinder, the pressure reducing assembly comprises a movable cover 401, a first limit plate 402, a fixed column 403, a spring 405, a second limit plate 407 and a telescopic cylinder 408, a first mounting plate 404 which is distributed equidistantly is fixed on the outer wall of the movable cover 401, a second mounting plate 406 which is distributed equidistantly is fixed on the outer circumferential wall of the large-diameter cylinder of the first cracking cylinder 410, the first mounting plate 404 and the second mounting plate 406 correspond to each other and are provided with sliding holes at the tops, the fixed column is slidably mounted on the inner wall of the sliding hole, the first limit plate 402 and the second limit plate 407 are respectively fixed on the top and the bottom end of the fixed column 403, the spring 405 is sleeved on the outer circumferential wall of the fixed column 403, and the spring 405 is positioned between the second mounting plate 406 and the second limit plate 407, the two ends of the telescopic cylinder 408 are respectively fixed with the top of the outer wall of the large-diameter cylinder of the first cracking cylinder 410 and the bottom of the movable cover 401.

By means of the structure, the following effects are achieved: before the sulfur-containing compound is introduced into the first cracking cylinder 410, the first cracking cylinder 410 is filled with hydrogen to replace air, then the mixture enters the first cracking cylinder 410, the pressure is increased, the movable cover 401 is pushed upwards to move upwards, the spring 405 is compressed, the volume of the whole first cracking cylinder 410 is increased, and the normal pressure is ensured, because the reaction speed of the sulfur-containing compound hydrodesulfurization and olefin hydrogenation saturation is higher, and the conversion rate is higher when the pressure is not high; the hydrodenitrogenation reaction speed of the nitrogen-containing compound is low, the reaction pressure needs to be increased or the space velocity needs to be reduced to ensure a certain denitrification rate, at the moment, the obtained mixed product comprises an olefin mixture, a sulfur-containing compound, an oxygen-containing compound and nitrogen-containing essential oil, the screw conveying rod I412 is rotated by the servo motor I414, and the catalyst is conveyed to the top of the first cracking cylinder 410 to realize solid-liquid separation.

Furthermore, one end of the air outlet pipe 203 is inserted into the outer side wall of the cavity 413 of the first cracker cartridge 410, and an air outlet is formed on the outer side wall of the cavity 413 of the first cracker cartridge 410.

By means of the structure, the following effects are achieved: the air outlet pipe 203 fills the cavity with hot air, thereby realizing waste heat recycling and improving the heat preservation of the first cracking cylinder 410.

Further, the flushing component 5 comprises a flushing tank 501, a rotating framework 502, a servo motor II 503, a communicating pipe III 504, a plurality of filter screens II 505 and a temperature control component I506, an upper inclined barrel 507 is inserted in the top of the flushing tank 501, the top of the upper inclined barrel 507 is inserted in the bottom of the outer peripheral wall of the large-diameter barrel of the first cracking barrel 410, the rotating framework 502 comprises a cylindrical rod and partition plates fixed on the outer peripheral wall of the cylindrical rod at equal intervals, the plurality of filter screens II 505 are averagely fixed on the same end of two adjacent partition plates, one end of the cylindrical rod is movably installed on the inner wall of one side of the flushing tank 501, the servo motor II 503 is fixed on the outer wall of the flushing tank 501, an output shaft is fixed with the other end of the cylindrical rod, the temperature control component I506 is arranged on the outer wall of the flushing tank 501, the temperature control component I506 comprises a temperature controller, a heater, a cooler and a control element, the temperature controller, the heater and the cooler are electrically connected with the control element, the outlet pipe is inserted at the bottom end of the outer wall at one side of the flushing tank 501, the communicating pipe III 504 is inserted at the bottom end of the outer wall at the other side of the flushing tank 501 and is aligned with the outlet pipe, the second cracking device 6 comprises a second cracking cylinder 601, an electromagnetic throttle valve 602, a hydrogen inlet pipe II 603, a discharge pipe 604, a temperature control assembly II 605 and an inlet pipe 606, the inlet pipe 606 is inserted at the outer wall at one side of the second cracking cylinder 601 and is communicated with the communicating pipe III 504, the temperature control assembly II 605 and the temperature control assembly I506 have the same specification and are arranged on the outer wall of the inlet pipe 606, the hydrogen inlet pipe II 603 is inserted at the top end of the outer wall at one side of the second cracking cylinder 601, the electromagnetic throttle valve 602 is connected to one end of the hydrogen inlet pipe II 603 through a flange, the discharge pipe 604 is arranged on the outer wall at one side of the second cracking cylinder 601, the top of the inner wall of the second cracking cylinder 601 is provided with an air pressure sensor, the material transfer assembly 7 comprises a material transfer cylinder 701, a spiral transfer rod II 702, a spiral transfer rod 702, The device comprises a servo motor III 703 and a lower inclined cylinder 704, wherein the material conveying cylinder 701 is transversely arranged, the outer wall of one side of one end of the material conveying cylinder is communicated with the bottom end of the outer wall of one end of the flushing tank 501, the lower inclined cylinder 704 is inserted at the bottom of the outer wall of the other end of the material conveying cylinder 701, the bottom of the material conveying cylinder 701 is inserted on the outer wall of one side of the second cracking cylinder 601, the spiral conveying rod II 702 is positioned inside the material conveying cylinder 701, the servo motor III 703 is fixed on the outer wall of one side of the material conveying cylinder 701, and one end head of the spiral conveying rod II 702 is fixed on the servo motor III 703.

By means of the structure, the following effects are achieved: the catalyst falls into the partition plates in the flushing tank 501, the servo motor II 503 enables the rotary framework 502 to rotate at a constant speed, the rotation direction is clockwise as shown in fig. 3, meanwhile, the temperature control assembly I506 enables the flushing tank 501 to be heated, the temperature is controlled to be three hundred eighty ℃, the carbon-containing essential oil has an elution acting force on the catalyst, and the catalyst can be activated by combining the high temperature of three hundred eighty ℃, so that the activity is improved, and the service life of the catalyst is prolonged; the servo motor three 703 rotates the screw transportation rod two 702, so that the catalyst dropped into the transportation cylinder 701 enters the second cracking cylinder 601, then the hydrogen pipe two 603 continuously enters the hydrogen, so that the internal pressure of the second cracking cylinder 601 is increased, the pressure sensor can detect the air pressure, and the controller controls the electromagnetic throttle valve 602 to adjust the flow rate.

The working principle is as follows: raw oil and a metal catalyst are placed in a mixing box 101, a servo motor drives a main bevel gear 111 to rotate, the main bevel gear 111 drives a first transmission bevel gear 110 and a second transmission bevel gear 112 to rotate, the rotating directions of the first transmission bevel gear 110 and the second transmission bevel gear 112 are opposite, and the first transmission bevel gear 110 and the second transmission bevel gear 112 respectively drive a stirrer 103 and a stirring plate 102 to rotate, so that internal and external stirring is realized, the mixing time is shortened, and the mixing efficiency is improved; after the mixture is mixed, the electromagnetic valve 105 is opened, the mixed mixture enters the heating furnace 201 through the connecting pipe 106, the heating furnace 201 is the prior art, the detailed working principle is not explained here, the heating furnace 201 heats the mixture, the encyclopedic data is consulted, the hydrogenation temperature should be controlled between three hundred sixty degrees centigrade and four hundred fifty degrees centigrade, the heating time is controlled to prevent the generation of coking, the transport pump 301 sucks the mixture away through the first communicating pipe 302 and transports the mixture to the first cracking cylinder 410 through the second communicating pipe 303, before the first cracking cylinder 410 is introduced, the first cracking cylinder 410 replaces air through the introduction of hydrogen, then the mixture enters the first cracking cylinder 410, at this moment, the pressure is increased, the movable cover 401 is pushed upwards to move upwards, the spring 405 is compressed, the volume of the whole first cracking cylinder 410 is increased to ensure normal pressure, because the reaction speed of the hydrodesulfurization of the sulfur-containing compound and the olefin hydrogenation saturation is higher, the conversion rate is higher when the pressure is not high; the hydrodenitrogenation reaction speed of the nitrogen-containing compound is low, the reaction pressure needs to be increased or the space velocity needs to be reduced to ensure a certain denitrification rate, at the moment, the obtained mixed product comprises an olefin mixture, a sulfur-containing compound, an oxygen-containing compound and nitrogen-containing essential oil (the carbon content in the crude oil is low, the carbon-containing essential oil is also the same), a servo motor I414 enables a spiral transportation rod I412 to rotate, the top of a catalyst transportation first cracking cylinder 410 is transported to realize solid-liquid separation, the catalyst is swept into an upper inclined cylinder 507 by a sweeping plate 409 in the first cracking cylinder 410 and falls between separation plates in a flushing tank 501, a servo motor II 503 enables a rotary framework 502 to rotate at a constant speed, as shown in figure 3, the rotation direction is clockwise, meanwhile, a temperature control component I506 enables the flushing tank 501 to be heated, the temperature is controlled at three hundred and eighty ℃, and the combination of 'hydrocracking catalyst deactivation and activation' documents of royal Guinson and Johnson, the carbon-containing essential oil has an elution acting force on the catalyst, and the catalyst can be activated by combining the high temperature of three hundred eighty ℃, so that the activity is improved, and the service life of the catalyst is prolonged; the servo motor III 703 rotates the spiral conveying rod II 702, so that the catalyst falling into the conveying cylinder 701 enters the second cracking cylinder 601, then the hydrogen pipe II 603 continuously enters the hydrogen, so that the internal pressure of the second cracking cylinder 601 is increased, the pressure sensor can detect the air pressure, the controller controls the electromagnetic throttle valve 602 to adjust the flow rate, and then the olefin mixture, the sulfur-containing compound, the oxygen-containing compound and the nitrogen-containing compound are obtained.

Claims

1. A light aromatics hydrogenation transformation equipment, which is characterized in that: the device comprises a mixing device (1), a heating assembly (2), a transporting assembly (3), a first cracking assembly (4), a flushing assembly (5), a second cracking device (6) and a material conveying assembly (7), wherein a connecting pipe (106) used for connecting is arranged between the mixing device (1) and the heating assembly (2), the heating assembly (2) is arranged between the transporting assembly (3) and the first cracking assembly (4) and used for connecting, the flushing assembly (5) is arranged between the first cracking assembly (4) and the second cracking device (6) and the three are connected, and the material conveying assembly (7) is arranged at one end position of the flushing assembly (5) and the second cracking device (6) and is connected with the three.

2. The light aromatic hydrocarbon hydrogenation transformation equipment as claimed in claim 1, characterized in that: mixing arrangement (1) is including mixing box (101), stirring subassembly and drive assembly, drive assembly sets up the top at mixing box (101), the stirring subassembly sets up the inside at mixing box (101), the top non-center department of mixing box (101) is pegged graft respectively and is had raw materials to advance pipe (107) and catalyst and put into the pipe, the top that the raw materials advances pipe (107) is provided with liquid flow pump (108), the bottom of mixing box (101) has been seted up the outflow hole, the inner wall in outflow hole is provided with solenoid valve (105), a tip of connecting pipe (106) is connected with solenoid valve (105) through the flange.

3. The light aromatic hydrocarbon hydrogenation transformation equipment as claimed in claim 2, characterized in that: the driving assembly comprises a fixed frame (109), a first transmission bevel gear (110), a second transmission bevel gear (111), a second transmission bevel gear (112) and a fourth servo motor, wherein the fixed frame (109) is fixed at the top of the mixing box (101), the fourth servo motor is fixed on the inner wall of one side of the fixed frame (109), a rotating hole is formed in the middle of the top of the mixing box (101), a rotating cylinder is installed on the inner wall of the rotating hole in a rotating mode, the first transmission bevel gear (110) is installed on the top of the inner side wall of the fixed frame (109) in a rotating mode, the second transmission bevel gear (112) is fixed at the top of the rotating cylinder, the first transmission bevel gear (111) is fixed on the output shaft of the fourth servo motor, and the first transmission bevel gear (110) and the second transmission bevel gear (112) are meshed with the first transmission bevel gear (111) respectively.

4. The light aromatic hydrocarbon hydrogenation transformation equipment as claimed in claim 3, characterized in that: the stirring subassembly includes agitator (103), a plurality of stirring board (102) and a plurality of extension rod (104), and is a plurality of the bottom of rotating the section of thick bamboo is fixed to one end of extension rod (104) and is equidistant annular distribution, a plurality of as the centre of a circle with the bottom center stirring board (102) are on average fixed in another end bottom of extension rod (104), agitator (103) include dwang and a plurality of stirring board two of fixing on the dwang periphery wall, the dwang rotates to be installed on the inner wall of rotating the section of thick bamboo and the bottom at transmission bevel gear (110) is fixed to the top end.

5. The light aromatic hydrocarbon hydrogenation transformation equipment as claimed in claim 1, characterized in that: heating element (2) are including heating furnace (201), draught fan (202) and play tuber pipe (203), another end of connecting pipe (106) is pegged graft on the lateral wall of heating furnace (201), the inside top at heating furnace (201) is installed to the input of draught fan (202), it cup joints on the output of draught fan (202) to go out tuber pipe (203).

6. The light aromatic hydrocarbon hydrogenation transformation equipment as claimed in claim 5, characterized in that: the transportation assembly (3) comprises a transportation pump (301), a first communication pipe (302) and a second communication pipe (303), one end of the first communication pipe (302) and one end of the second communication pipe (303) are respectively connected to the input end and the output end of the transportation pump (301) through flanges, and the other end of the first communication pipe (302) is inserted into the bottom end of the side wall of the heating furnace (201).

7. The light aromatic hydrocarbon hydrogenation transformation equipment as claimed in claim 6, characterized in that: the first cracking assembly (4) comprises a first cracking barrel (410), a separating assembly and a pressure reducing assembly, the first cracking barrel (410) is of a double-step structure, the upper part and the lower part of the first cracking barrel are respectively a large-diameter barrel and a small-diameter barrel, a cavity (413) is formed in the outer wall of the first cracking barrel (410), the other end of the communicating pipe (303) is inserted in the bottom end of the inner side wall of the cavity (413) of the first cracking barrel (410), the inner side wall of the cavity (413) of the first cracking barrel (410) is positioned below the large-diameter barrel and is inserted with a first hydrogen inlet pipe (415), the other end of the first hydrogen inlet pipe (415) is provided with a gas flow pump (416) through a flange, an outlet pipe is inserted in the inner side wall of the cavity (413) of the first cracking barrel (410), the outlet pipe penetrates through the outer wall of the cavity (413) and a first filter screen (411) is fixed on the inner wall, the separation component comprises a first servo motor (414), a first spiral conveying rod (412) and a plurality of sweeping plates (409), wherein the first spiral conveying rod (412) is arranged inside the first cracking cylinder (410), the first servo motor (414) is fixed at the bottom of the outer wall of the first cracking cylinder (410), the first spiral conveying rod (412) is fixed on an output shaft of the first servo motor (414), the sweeping plates (409) are fixed at the top of the first spiral conveying rod (412) and are in contact with the inner wall of the bottom of the large-diameter cylinder, the pressure reduction component comprises a movable cover (401), a first limiting plate (402), a fixed column (405), a second limiting plate (407) and a telescopic cylinder (408), a first mounting plate (404) distributed at equal intervals is fixed on the outer wall of the movable cover (401), and a second mounting plate (406) distributed at equal intervals is fixed on the outer circumferential wall of the large-diameter cylinder of the first cracking cylinder (410), mounting panel (404) and mounting panel two (406) one-to-one and the slide opening has all been seted up at the top, fixed column (403) slidable mounting is on the inner wall of slide opening, limiting plate one (402) and limiting plate two (407) are fixed respectively on the top and the bottom end of fixed column (403), spring (405) cup joint on the periphery wall of fixed column (403), spring (405) are located between mounting panel two (406) and the limiting plate two (407), the both ends of telescopic tube (408) are fixed with the bottom of the major diameter section of thick bamboo outer wall top of first cracking tube (410) and removal lid (401) respectively.

8. The light aromatic hydrocarbon hydrogenation transformation equipment as claimed in claim 7, characterized in that: one end of the air outlet pipe (203) is inserted on the outer side wall of the cavity (413) of the first cracking barrel (410), and an air outlet hole is formed in the outer side wall of the cavity (413) of the first cracking barrel (410).

9. The light aromatic hydrocarbon hydrogenation transformation equipment as claimed in claim 7, characterized in that: the washing component (5) comprises a washing tank (501), a rotating framework (502), a servo motor II (503), a communicating pipe III (504), a plurality of filter screens II (505) and a temperature control component I (506), wherein an upper inclined barrel (507) is inserted into the top of the washing tank (501), the top of the upper inclined barrel (507) is inserted into the bottom of the peripheral wall of the large-diameter barrel of the first cracking barrel (410), the rotating framework (502) comprises a cylindrical rod and partition plates fixed on the peripheral wall of the cylindrical rod at equal intervals, the plurality of filter screens II (505) are averagely fixed on the same end of two adjacent partition plates, one end head of the cylindrical rod is movably arranged on the inner wall of one side of the washing tank (501), the servo motor II (503) is fixed on the outer wall of the washing tank (501), an output shaft of the servo motor II is fixed with the other end head of the cylindrical rod, and the temperature control component I (506) is arranged on the outer wall of the washing tank (501), the first temperature control component (506) comprises a temperature controller, a heater, a cooler and a control element, the temperature controller, the heater and the cooler are electrically connected with the control element, the outflow pipe is inserted and connected to the bottom end of the outer wall of one side of the flushing tank (501), the third communicating pipe (504) is inserted and connected to the bottom end of the outer wall of the other side of the flushing tank (501) and aligned with the outflow pipe, the second cracking device (6) comprises a second cracking cylinder (601), an electromagnetic throttle valve (602), a second hydrogen inlet pipe (603), a discharge pipe (604), a second temperature control component (605) and an inlet pipe (606), the inlet pipe (606) is inserted and connected to the outer wall of one side of the second cracking cylinder (601) and communicated with the third communicating pipe (504), the second temperature control component (605) is consistent with the specification of the first temperature control component (506) and arranged on the outer wall of the inlet pipe (606), the second hydrogen inlet pipe (603) is inserted and connected to the top end of the outer wall of one side of the second cracking cylinder (601), the electromagnetic throttle valve (602) is connected to one end of the second hydrogen inlet pipe (603) through a flange, the discharge pipe (604) is arranged on the outer wall of one side of the second cracking cylinder (601), and an air pressure sensor is arranged at the top of the inner wall of the second cracking cylinder (601).

10. The light aromatic hydrocarbon hydrogenation transformation equipment as claimed in claim 1, characterized in that: the material conveying assembly (7) comprises a material conveying barrel (701), a spiral conveying rod II (702), a servo motor III (703) and a lower inclined barrel (704), the material conveying barrel (701) is transversely placed, the outer wall of one side of one end of the material conveying barrel (701) is communicated with the bottom end of the outer wall of one end of the flushing box (501), the lower inclined barrel (704) is inserted into the bottom of the outer wall of the other end of the material conveying barrel (701), the bottom of the material conveying barrel (701) is inserted into the outer wall of one side of the second cracking barrel (601), the spiral conveying rod II (702) is located inside the material conveying barrel (701), the servo motor III (703) is fixed onto the outer wall of one side of the material conveying barrel (701), and one end head of the spiral conveying rod II (702) is fixed onto the servo motor III (703).