CN214486812U

CN214486812U - Heavy hydrocarbon oil aromatization device

Info

Publication number: CN214486812U
Application number: CN202022532916.5U
Authority: CN
Inventors: 张明; 邢贵金; 谢志国; 黄明海
Original assignee: Ningxia Ninglu Petrochemical Co Ltd
Current assignee: Ningxia Ninglu Petrochemical Co Ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-10-26
Anticipated expiration: 2030-11-05

Abstract

The utility model relates to the technical field of aromatization, in particular to a heavy hydrocarbon oil aromatization device, which comprises a reaction tank, wherein the top end of the reaction tank is fixedly connected with a motor, one side of the top of the reaction tank is communicated with a feeding pipe, the reaction tank is horizontally and fixedly connected with a first baffle plate, a plurality of drainage holes are arranged on the first baffle plate, a steel wire mesh is fixedly connected inside the reaction tank below the first baffle plate, an extension rod is rotatably and vertically arranged in the middle of the first baffle plate, the top end of the extension rod is fixedly connected with a rotating shaft in a coaxial line manner, the rotating shaft is fixedly connected with a plurality of stirring paddles, the top end of the rotating shaft is vertically and fixedly connected on an output shaft of the motor, the bottom end of the extension rod extends to the lower part of the steel wire mesh, the bottom end of the extension rod is fixedly connected with a first bevel gear, the device disperses raw materials through the drainage holes on the stirring paddles and the first baffle plate, and improves the contact area between the raw materials and a catalyst, the contact area of the gas flow and the catalyst is increased through the gas inlet structure, and the yield is improved.

Description

Heavy hydrocarbon oil aromatization device

Technical Field

The utility model relates to an aromatization technical field especially relates to a heavy hydrocarbon oil aromatization device.

Background

Aromatization is to convert low molecular hydrocarbons into mixed aromatics containing benzene, toluene and xylene through aromatization reaction under the action of catalyst and generate gas phase containing hydrogen, methane and carbon five cut fraction. And then finally producing mixed aromatic hydrocarbon, light aromatic hydrocarbon and heavy aromatic hydrocarbon which meet the standard through a series of separation, and simultaneously by-producing liquefied gas with low olefin and a small amount of dry gas.

The important place of aromatization reaction is reactor, and the structure of reactor can completely control the efficiency and final yield of aromatization reaction, and the current aromatization reactor has simple structure, so that its yield and efficiency are low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects of lower yield and efficiency of the existing reactor in the prior art and providing a heavy hydrocarbon oil aromatization device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a heavy hydrocarbon oil aromatization device is designed, comprising a reaction tank, wherein a motor is fixedly connected to the top end of the reaction tank, a feeding pipe is communicated with one side of the top of the reaction tank, a first baffle plate is horizontally and fixedly connected in the reaction tank, a plurality of drainage holes are formed in the first baffle plate, a steel wire mesh is fixedly connected in the reaction tank below the first baffle plate, an extension rod is rotatably and vertically arranged in the middle of the first baffle plate, a rotating shaft is fixedly connected to the top end of the extension rod in a coaxial manner, a plurality of stirring paddles are fixedly connected to the rotating shaft, the top end of the rotating shaft is vertically and fixedly connected to an output shaft of the motor, the bottom end of the extension rod extends to the lower part of the steel wire mesh, a first bevel gear is fixedly connected to the bottom end of the extension rod, a reciprocating screw rod is rotatably arranged on the inner wall of the reaction tank below the steel wire mesh, a second bevel gear is fixedly connected to the reciprocating screw rod, and meshed with the first bevel gear, the reciprocating screw drives the air inlet structure to breathe, the air inlet structure comprises an arc-shaped connecting plate, a piston rod, a piston, an air cylinder and a three-way pipe, a screw hole is horizontally formed in the middle of the connecting plate, the reciprocating screw is screwed in the screw hole, one end of the air cylinder is communicated with the outer wall of the reaction tank, the piston is slidably connected in the air cylinder, one end of the piston rod is hinged on the piston, the other end of the piston rod is hinged on the connecting plate, a one-way air inlet structure is installed at one end of the three-way pipe, the other two ends of the three-way pipe are communicated on the air cylinder, and a discharge pipe is communicated with the bottom of the reaction tank.

Preferably, the one-way air inlet structure comprises a second baffle and a spring, a groove is formed in the inner wall of one end of the three-way pipe, one side of the second baffle is hinged to the inner wall of the three-way pipe, the other end of the second baffle is slidably connected into the groove, one end of the spring is fixedly connected to the inner wall of the groove, and the other end of the spring is fixedly connected to the second baffle.

Preferably, the spring is always in compression.

Preferably, the piston is coated with a corrosion-resistant coating.

The utility model provides a heavy hydrocarbon oil aromatization device, beneficial effect lies in: this heavy hydrocarbon oil aromatization device disperses the raw materials through the guiding hole on stirring rake and the first baffle, improves the area of contact between raw materials and the catalyst, improves the area of contact of air current and catalyst through air inlet structure, is favorable to improving the productivity.

Drawings

Fig. 1 is a schematic structural diagram of a heavy hydrocarbon oil aromatization device provided by the utility model.

Fig. 2 is an enlarged view of a position a of the heavy hydrocarbon oil aromatization device provided by the utility model.

In the figure: the device comprises a reaction tank 1, a feeding pipe 2, a reaction tank 1, a rotating shaft 4, a stirring paddle 5, a first baffle 6, a drainage hole 7, a lower portion of a steel wire mesh 8, an extension rod 9, a first bevel gear 10, a discharge pipe 11, a second bevel gear 12, a reciprocating screw 13, a connecting plate 14, a piston rod 16, a piston 17, a cylinder 18, a three-way pipe 19, a groove 20, a second baffle 21 and a spring 22.

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.

Referring to fig. 1-2, a heavy hydrocarbon oil aromatization device, including retort 1, 1 top rigid coupling of retort has motor 3, 1 top one side intercommunication of retort has inlet pipe 2, horizontal rigid coupling has first baffle 6 in the retort 1, a plurality of drainage holes 7 have been seted up on the first baffle 6, the inside rigid coupling of retort 1 of first baffle 6 below has wire net 8, rotatable vertical installation in first baffle 6 middle part has extension rod 9, extension rod 9 top coaxial line rigid coupling has pivot 4, the rigid coupling has a plurality of stirring rake 5 on the pivot 4, the vertical rigid coupling in 4 tops of pivot is on the output shaft of motor 3, start motor 3, motor 3 drives pivot 4 and rotates, pivot 4 drives stirring rake 5 and rotates, it can be dispersed on first baffle 6 by stirring rake 5 to get into the raw materials from the inlet pipe 2 in, get into first baffle 6 below along drainage holes 7 on first baffle 6.

The bottom end of an extension rod 9 extends to the lower part of a steel wire mesh 8, the bottom end of the extension rod 9 is fixedly connected with a first bevel gear 10, a reciprocating screw 13 is rotatably arranged on the inner wall of a reaction tank 1 below the steel wire mesh 8, a second bevel gear 12 is fixedly connected to the reciprocating screw 13, the second bevel gear 12 is meshed with the first bevel gear 10, the reciprocating screw 13 drives an air inlet structure to breathe, the air inlet structure comprises an arc-shaped connecting plate 14, a piston rod 16, a piston 17, an air cylinder 18 and a three-way pipe 19, a screw hole 15 is horizontally formed in the middle of the connecting plate 14, the reciprocating screw 13 is screwed in the screw hole 15, one end of the air cylinder 18 is communicated with the outer wall of the reaction tank 1, the piston 17 is slidably connected in the air cylinder 18, one end of the piston rod 16 is hinged to the piston 17, a corrosion-resistant coating is coated on the piston 17, the other end of the piston rod 16 is hinged to the connecting plate 14, one end of the three-way pipe 19 is provided with a one-way air inlet structure, the other two ends of the three-way pipe 19 are communicated with the air cylinder 18, and the bottom of the reaction tank 1 is communicated with a discharge pipe 11. Be used for holding and putting the catalyst on the wire net 8, the raw materials flow to the wire net 8 and with the catalyst contact on the wire net 8 after drainage hole 7 disperses, the contact surface of raw materials and catalyst has been increased, the reaction rate is improved, can drive extension rod 9 when pivot 4 rotates, extension rod 9 rotates and drives reciprocal screw 13 through first bevel gear 10 and second bevel gear 12 and rotate, link plate 14 axial displacement on reciprocal screw 13, thereby drive piston 17 and slide in cylinder 18, piston 17 slides in cylinder 18 can be through three-way pipe 19 with inside the air suction retort 1 of external world, the area of contact of air current and catalyst improves, be favorable to improving the productivity.

The one-way air inlet structure comprises a second baffle plate 21 and a spring 22, a groove 20 is formed in the inner wall of one end of the three-way pipe 19, one side of the second baffle plate 21 is hinged to the inner wall of the three-way pipe 19, the other end of the second baffle plate 21 is connected into the groove 20 in a sliding mode, one end of the spring 22 is fixedly connected onto the inner wall of the groove 20, the other end of the spring 22 is fixedly connected onto the second baffle plate 21, and the spring 22 is in a compression state all the time. The one-way air inlet structure only allows air to enter the three-way pipe 19 from the outside, and prevents the steam containing the raw materials in the reaction tank 1 from being discharged.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The heavy hydrocarbon oil aromatization device is characterized by comprising a reaction tank (1), wherein a motor (3) is fixedly connected to the top end of the reaction tank (1), a feeding pipe (2) is communicated with one side of the top of the reaction tank (1), a first baffle (6) is horizontally and fixedly connected in the reaction tank (1), a plurality of drainage holes (7) are formed in the first baffle (6), a steel wire mesh (8) is fixedly connected in the reaction tank (1) below the first baffle (6), an extension rod (9) is rotatably and vertically arranged in the middle of the first baffle (6), a rotating shaft (4) is fixedly connected to the top end of the extension rod (9) in a coaxial line manner, a plurality of stirring paddles (5) are fixedly connected to the rotating shaft (4), the top end of the rotating shaft (4) is fixedly connected to an output shaft of the motor (3), and the bottom end of the extension rod (9) extends to the lower part of the steel wire mesh (8), the bottom end of the extension rod (9) is fixedly connected with a first bevel gear (10), a reciprocating screw (13) is rotatably mounted on the inner wall of the reaction tank (1) below the steel wire mesh (8), a second bevel gear (12) is fixedly connected to the reciprocating screw (13), the second bevel gear (12) is meshed with the first bevel gear (10), the reciprocating screw (13) drives the air inlet structure to breathe, the air inlet structure comprises an arc connecting plate (14), a piston rod (16), a piston (17), a cylinder (18) and a three-way pipe (19), a screw hole (15) is horizontally formed in the middle of the connecting plate (14), the reciprocating screw (13) is screwed in the screw hole (15), one end of the cylinder (18) is communicated with the outer wall of the reaction tank (1), the piston (17) is slidably connected in the cylinder (18), one end of the piston rod (16) is hinged to the piston (17), the other end of the piston rod (16) is hinged to the connecting plate (14), a one-way air inlet structure is mounted at one end of the three-way pipe (19), the other two ends of the three-way pipe (19) are communicated with the air cylinder (18), and a discharge pipe (11) is communicated with the bottom of the reaction tank (1).

2. The heavy hydrocarbon oil aromatization device according to claim 1, wherein the one-way air inlet structure comprises a second baffle (21) and a spring (22), a groove (20) is formed on the inner wall of one end of the three-way pipe (19), one side of the second baffle (21) is hinged on the inner wall of the three-way pipe (19), the other end of the second baffle (21) is slidably connected in the groove (20), one end of the spring (22) is fixedly connected on the inner wall of the groove (20), and the other end of the spring (22) is fixedly connected on the second baffle (21).

3. A heavy hydrocarbon oil aromatization apparatus according to claim 2 wherein the spring (22) is always under compression.

4. A heavy hydrocarbon oil aromatization apparatus according to claim 1 characterized in that the piston (17) is coated with a corrosion-resistant coating.