CN111841478A - Novel tubular anti-coking heat polymerization equipment - Google Patents
Novel tubular anti-coking heat polymerization equipment Download PDFInfo
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- CN111841478A CN111841478A CN202010892966.6A CN202010892966A CN111841478A CN 111841478 A CN111841478 A CN 111841478A CN 202010892966 A CN202010892966 A CN 202010892966A CN 111841478 A CN111841478 A CN 111841478A
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/1812—Tubular reactors
- B01J19/1818—Tubular reactors in series
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/009—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping in combination with chemical reactions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/06—Flash distillation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/10—Vacuum distillation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
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Abstract
The invention discloses a novel tubular anti-coking heat polymerization device, which comprises: the first tube array is rotatably provided with a first rotating rod and a first stirring sheet; the second tube array comprises a first tube body and a second tube body, a second rotating rod and a second stirring sheet are rotatably arranged in the first tube body, and a third rotating rod and a third stirring sheet are rotatably arranged in the second tube body along the length direction of the second tube body; the third row of pipes comprise a third pipe body and a fourth pipe body, a fourth rotating rod and a fourth stirring sheet are rotatably arranged in the third pipe body along the length direction of the third pipe body, and a fifth rotating rod and a fifth stirring sheet are rotatably arranged in the fourth pipe body along the length direction of the fourth pipe body; and the flash tower is connected with the fourth pipe body and is provided with a first distillation cavity, and a sixth rotating rod and a sixth stirring sheet are rotatably arranged in the first distillation cavity. Through the mode, the novel tubular anti-coking heat polymerization equipment disclosed by the invention can be used for stirring the polymerization materials in the tube array through the stirring sheet, preventing the tube array wall from coking, realizing continuous production and having high safety.
Description
Technical Field
The invention relates to the technical field of petrochemical deep processing, in particular to novel tubular anti-coking heat polymerization equipment.
Background
The polymerizer can convey necessary polymer materials for a granulator, the heating polymerizers on the market at present have various structures, the polymerizer with a stirrer and a heating coil in the polymerizer is commonly used, the polymerizer has a large volume (generally 5-10 cubic meters), but the polymerizer is unevenly heated and easy to coke, and the polymerizer has a long polymerization time, is generally suitable for batch production, cannot be continuously produced and is particularly not suitable for production at the temperature of more than 350 ℃, otherwise, the inner wall coking cannot be cleaned.
Disclosure of Invention
The invention mainly solves the technical problem of providing a novel tubular anti-coking heat polymerization device, which can prevent the polymerization materials in the tube array from coking by stirring the polymerization materials in the tube array through a stirring sheet, so that the continuous production can be realized, the yield is high, and the safety is high.
In order to solve the technical problems, the invention adopts a technical scheme that: the utility model provides a novel tubular anti-coking heat polymerization equipment which characterized in that includes: the first row of tubes are in a long strip shape and are vertically arranged, wherein a first rotating rod and a first stirring sheet arranged outside the first rotating rod in a surrounding mode are arranged in the first row of tubes in a rotating mode along the length direction of the first rotating rod; the second tube array is in a U shape and is vertically arranged, the second tube array comprises a first tube body and a second tube body communicated with the first tube body, a second rotating rod and a second stirring sheet arranged outside the second rotating rod in a surrounding mode are rotatably arranged in the first tube body along the length direction of the first tube body, a third rotating rod and a third stirring sheet arranged outside the third rotating rod in a surrounding mode are rotatably arranged in the second tube body along the length direction of the second tube body, and the top of the first tube array is communicated with the top of the first tube body through a first connecting tube; the third tube array is in a U shape and is vertically arranged, the third tube array comprises a third tube body and a fourth tube body communicated with the third tube body, a fourth rotating rod and a fourth stirring sheet arranged outside the fourth rotating rod in a surrounding mode are rotatably arranged in the third tube body along the length direction of the third tube body, a fifth rotating rod and a fifth stirring sheet arranged outside the fifth rotating rod in a surrounding mode are rotatably arranged in the fourth tube body along the length direction of the fourth tube body, and the top of the second tube body is communicated with the top of the third tube body through a second connecting tube; an input port of the flash tower is connected with an output port at the top of the fourth pipe body, the flash tower is provided with a first distillation cavity, and a sixth rotating rod and a sixth stirring sheet which is arranged outside the sixth rotating rod in a surrounding mode are rotatably arranged in the first distillation cavity; the input port of the granulator is connected with a first output port at the bottom of the flash tower; a distillation column having an input connected to a second output at the top of the flash column; the input port of the pressure reduction kettle is connected with the first output port at the top of the distillation tower; and the input port of the liquid receiving kettle is connected with the second output port at the bottom of the distillation tower.
Further, the top of first tubulation be equipped with the first motor that first dwang is connected, the top of first body be equipped with the second motor that the second dwang is connected, the top of second body be equipped with the third motor that the third dwang is connected, the top of third body be equipped with the fourth motor that the fourth dwang is connected, the top of fourth body be equipped with the fifth motor that the fifth dwang is connected, the top of flash column be equipped with the sixth motor that the sixth dwang is connected.
Further, the method also comprises the following steps: and the raw material pump is communicated with the bottom of the first row of pipes through an input pipe.
Further, first stirring piece is followed the bottom of first pipe is the heliciform to the top direction and encircles the setting outside first dwang, the second stirring piece is followed the top of first body is the heliciform to the bottom direction and encircles the setting outside the second dwang, the third stirring piece is followed the bottom of second body is the heliciform to the top direction and encircles the setting outside the third dwang, the fourth stirring piece is followed the top of third body is the heliciform to the bottom direction and encircles the setting outside the fourth dwang, the fifth stirring piece is followed the bottom of fourth body is the heliciform to the top direction and encircles the setting outside the fifth dwang.
Further, the distance between the first stirring sheet and the inner wall of the first row of tubes is not more than 2 millimeters, the distance between the second stirring sheet and the inner wall of the first tube body is not more than 2 millimeters, the distance between the third stirring sheet and the inner wall of the second tube body is not more than 2 millimeters, the distance between the fourth stirring sheet and the inner wall of the third tube body is not more than 2 millimeters, and the distance between the fifth stirring sheet and the inner wall of the fourth tube body is not more than 2 millimeters.
Furthermore, a first heating mechanism is arranged outside the first tube array, a second heating mechanism is arranged on the second tube array, a third heating mechanism is arranged on the third tube array, and a fourth heating mechanism is arranged on the flash tower.
Further, the first heating mechanism is a first heat-insulating layer which is arranged outside the first row of tubes and forms a first hot oil cavity with the first row of tubes, wherein a first heat-insulating layer at the bottom of the first row of tubes is provided with a first heat-conducting oil input port, a first heat-insulating layer at the top of the first row of tubes is provided with a first heat-conducting oil output port, the second heating mechanism is a second heat-insulating layer which is arranged outside the second row of tubes and forms a second hot oil cavity with the second row of tubes, wherein a second heat-insulating layer at the top of the first tube body of the second row of tubes is provided with a second heat-conducting oil input port, a second heat-insulating layer at the top of the second tube body of the second row of tubes is provided with a second heat-conducting oil output port, the third heating mechanism is a third heat-insulating layer which is arranged outside the third heat-conducting oil tube and forms a third hot oil cavity with the third row of tubes, wherein a third heat-insulating layer at the top of the third tube body of, the third heat preservation layer at the top of the fourth pipe body of the third row pipe is provided with a third heat conduction oil output port, the fourth heating mechanism is arranged outside the flash tower and forms a fourth heat preservation layer of a fourth heat oil cavity with the flash tower, the fourth heat preservation layer at the bottom of the flash tower is provided with a fourth heat conduction oil input port, and the fourth heat preservation layer at the top of the flash tower is provided with a fourth heat conduction oil output port.
Furthermore, the bottom of the first row pipe is provided with a first emptying valve, the bottom of the second row pipe is provided with a second emptying valve, and the bottom of the third row pipe is provided with a third emptying valve.
The invention has the beneficial effects that: different from the condition of the prior art, the novel tubular anti-coking heat polymerization equipment disclosed by the invention can be used for stirring the polymerization materials in the tube array through the stirring sheet, can prevent the tube array wall from coking, is high in safety, can be used for producing mesophase asphalt, can realize continuous production, even does not coke at a temperature higher than high temperature (400 ℃), is high in yield and is easy to control the temperature.
Drawings
FIG. 1 is a schematic structural diagram of the novel tubular anti-coking thermal polymerization equipment.
Detailed Description
Referring to fig. 1, the novel tubular anti-coking heat polymerization equipment comprises a first row of pipes 11, a second row of pipes 12, a third row of pipes 13, a flash tower 14, a granulator 15, a distillation tower 16, a pressure reduction kettle 17 and a liquid receiving kettle 18.
First tubulation 11 is rectangular form and vertical setting, wherein rotate along its length direction in the first tubulation 11 and be provided with first rotation pole and encircle and set up the first stirring piece outside first rotation pole to through the polymerization liquid of first stirring piece stirring in the first tubulation 11, make polymerization liquid evenly distributed.
In this embodiment, a first motor 111 connected to the first rotating rod is disposed at the top of the first row tube 11, so that the first rotating rod is driven to rotate by the first motor 111.
It should be understood that in the present embodiment, the novel tubular anti-coking thermal polymerization apparatus further comprises a raw material pump 10, wherein the raw material pump 10 is communicated with the bottom of the first row of pipes 11 through an input pipe to convey the polymerization liquid material into the first row of pipes 11 through the raw material pump 10.
Preferably, the first stirring sheet is spirally and circularly arranged outside the first rotating rod along the direction from the bottom to the top of the first row of tubes 11, so that the polymerization liquid in the first row of tubes 11 flows from the bottom of the first row of tubes 11 to the top of the first row of tubes 11. That is, the rotation of the first stirring blade can drive the polymerization liquid to flow from the bottom of the first row of tubes 11 to the top of the first row of tubes 11. It should be understood that the polymerization liquid is fed from the bottom of the first row of tubes 11, and thus can be carried by the first stirring blade to flow to the top of the first row of tubes 11.
It will be appreciated that the inner chamber of the first array of tubes 11 is cylindrical and the orthographic projection of the cross-section of the first stirring vanes is circular, so that the distance between the first stirring vanes and the inner wall of the first array of tubes 11 is not more than 2 mm in order to improve the stirring effect and reduce coking.
The second row of tubes 12 is U-shaped and vertically disposed, wherein the second row of tubes 12 includes a first tube 121 and a second tube 122 communicating with the first tube 121. It should be understood that the first pipe 11 and the second pipe 12 communicate with each other and have a U-shape.
In this embodiment, the top of the first row of tubes 11 is communicated with the top of the first tube body 121 through a first connection tube. It should be understood that the polymer liquid is transported from the top of the first row of tubes 11 to the top of the first tube 121, and the polymer liquid in the first tube 121 flows to the second tube 122.
In this embodiment, the first pipe body 121 is provided with a second rotating rod and a second stirring sheet surrounding the second rotating rod along the length direction thereof, so that the polymerization liquid in the first pipe body 121 is stirred by the second stirring sheet, and the polymerization liquid is uniformly distributed.
Preferably, the second stirring blade is spirally disposed around the second rotating rod along the top-to-bottom direction of the first tube 121, so that the polymerization liquid in the first tube 121 flows from the top of the first tube 121 to the bottom of the first tube 121. That is, the rotation of the second stirring blade can drive the polymerization liquid to flow from the top of the first pipe 121 to the bottom of the first pipe 121. It should be understood that the polymerization liquid is fed from the top of the first row 11 to the top of the first tube 121, and the polymerization liquid at the top of the first tube 121 is driven by the second stirring blade to flow to the bottom of the first tube 121.
In this embodiment, the second tube 122 is provided with a third rotating rod and a third stirring piece surrounding the third rotating rod along the length direction thereof, so as to stir the polymerization liquid in the second tube 122 through the third stirring piece, and the polymerization liquid is uniformly distributed.
Preferably, the third stirring blade is spirally disposed around the third rotating rod along the bottom-to-top direction of the second tube 122, so that the polymerization liquid in the second tube 122 flows from the bottom of the second tube 122 to the top of the second tube 122. That is, the rotation of the third stirring blade can drive the polymerization solution to flow from the bottom of the second pipe 122 to the top of the second pipe 122. It should be understood that the polymer liquid is transported from the bottom of the first pipe 121 to the bottom of the second pipe 122, and the polymer liquid at the bottom of the second pipe 122 is driven by the third stirring blade to flow to the top of the second pipe 122.
In this embodiment, the top of the first pipe 121 is provided with a second motor 123 connected to the second rotating rod, so as to drive the second rotating rod to rotate through the second motor 123. Further, the top of the second tube 122 is provided with a third motor 124 connected to the third rotating rod, so as to drive the third rotating rod to rotate via the third motor 124.
It should be understood that the inner cavity of the first pipe 121 and the inner cavity of the second pipe 122 are cylindrical, and the orthographic projection of the cross section of the second stirring blade and the cross section of the third stirring blade are also circular, so that in order to improve the stirring effect and reduce the coking phenomenon, the distance between the second stirring blade and the inner wall of the first pipe 121 is not more than 2 mm, and further, the distance between the third stirring blade and the inner wall of the second pipe 122 is not more than 2 mm.
The third row of tubes 13 is U-shaped and vertically disposed, wherein the third row of tubes 13 includes a third tube 131 and a fourth tube 132 connected to the third tube 131. It should be understood that the third and fourth tubes 131 and 132 are in communication with each other and have a U-shape.
In this embodiment, the top of the second tube 122 is communicated with the top of the third tube 131 through a second connection tube. It should be understood that the polymer liquid in the second row of tubes 12 is transported from the top of the first tube 121 to the top of the second tube 122, and the polymer liquid in the second tube 122 flows to the third tube 131.
In this embodiment, the third pipe body 131 is provided with a fourth rotating rod and a fourth stirring sheet surrounding the fourth rotating rod along the length direction thereof, so that the polymerization liquid in the third pipe body 131 is stirred by the fourth stirring sheet, and the polymerization liquid is uniformly distributed.
Preferably, the fourth stirring blade is spirally disposed around the fourth rotating rod along the top-to-bottom direction of the third tube 131, so that the polymer liquid in the third tube 131 flows from the top of the third tube 131 to the bottom of the third tube 131. That is, the rotation of the fourth stirring blade can drive the polymerization liquid to flow from the top of the third pipe 131 to the bottom of the third pipe 131. It should be understood that the polymer liquid is transported from the top of the second tube 122 to the top of the third tube 131, and the polymer liquid at the top of the third tube 131 is carried by the fourth stirring blade to the bottom of the third tube 131.
In this embodiment, a fifth rotating rod and a fifth stirring sheet surrounding the fifth rotating rod are rotatably disposed in the fourth pipe 132 along the length direction thereof, so that the polymerization liquid in the fourth pipe 132 is stirred by the fifth stirring sheet, and the polymerization liquid is uniformly distributed.
Preferably, the fifth stirring blade is spirally disposed around the fifth rotating shaft along the bottom-to-top direction of the fourth tube 132, so that the polymerization liquid in the fourth tube 132 flows from the bottom of the fourth tube 132 to the top of the fourth tube 132. That is, the rotation of the fifth stirring blade can drive the polymerization liquid to flow from the bottom of the fourth tube 132 to the top of the fourth tube 132. It should be understood that the polymer liquid is transported from the bottom of the third pipe 131 to the bottom of the fourth pipe 132, and the polymer liquid at the bottom of the fourth pipe 132 is carried by the fifth stirring blade to the top of the fourth pipe 132.
In this embodiment, the top of the third pipe 131 is provided with a fourth motor 133 connected to the fourth rotating rod, so as to drive the fourth rotating rod to rotate through the fourth motor 133. Further, a fifth motor 134 connected to the fifth rotating rod is disposed at the top of the fourth tube 132, so that the fifth motor 134 drives the fifth rotating rod to rotate.
It should be understood that the inner cavity of the third pipe 131 and the inner cavity of the fourth pipe 132 are cylindrical, and the orthographic projection of the cross section of the fourth stirring blade and the cross section of the fifth stirring blade are also circular, so that the distance between the fourth stirring blade and the inner wall of the third pipe 131 is not more than 2 mm, and the distance between the fifth stirring blade and the inner wall of the fourth pipe 132 is not more than 2 mm, in order to improve the stirring effect and reduce the coking phenomenon.
It is understood that in some embodiments, a first vacuum pump is connected to at least one of the first, second and third columns of tubes 11, 12 and 13 to evacuate the first, second and third columns of tubes 11, 12 and 13 by the first vacuum pump.
The input of the flash column 14 is connected to the output of the top of the fourth tube 132 such that the polymerization liquid of the fourth tube 132 is fed to the flash column 14. It should be understood that in some embodiments, a second vacuum pump is connected to the flash column 14 to evacuate the flash column 14 by the second vacuum pump.
In this embodiment, the flash tower 14 is provided with a first distillation chamber, and a sixth rotating rod and a sixth stirring sheet surrounding the sixth rotating rod are rotatably disposed in the first distillation chamber, so as to stir the polymerization liquid in the first distillation chamber through the sixth stirring sheet. It should be understood that the flash column 14 has a drying function, and therefore, in the flash column 14, a part of the gas of the polymerization liquid is vaporized and discharged from the top of the flash column 14, and the remaining part of the solid is discharged from the bottom of the flash column 14.
Preferably, a sixth motor 141 connected to a sixth rotating rod is disposed at the top of the flash tower 14, so that the sixth rotating rod is driven to rotate by the sixth motor 141.
The input of the granulator 15 is connected to a first output at the bottom of the flash column 14 so that the solids in the flash column 14 are input into the granulator 15.
The input of the distillation column 16 is connected to a second output at the top of the flash column 14 so that the gas exiting the flash column 14 is conveyed into the distillation column 16. It will be appreciated that the gas withdrawn from the flash column 14 is still mixed with a portion of the polymer, is not clean and therefore needs to be distilled again through the distillation column 16. It should be understood that in some embodiments, a third vacuum pump is connected to distillation column 16 to evacuate distillation column 16 by the third vacuum pump.
The input port of the vacuum vessel 17 is connected to a first output port at the top of the distillation column 16, and the gas discharged from the top of the distillation column 16 is received by the vacuum vessel 17.
The input port of the liquid receiver 18 is connected to a second output port at the bottom of the distillation column 16, so that the solids output from the bottom of the distillation column 16 are received by the liquid receiver 18.
In this embodiment, a first heating mechanism is disposed outside the first row of pipes 11, a second heating mechanism is disposed outside the second row of pipes 12, a third heating mechanism is disposed outside the third row of pipes 13, and a fourth heating mechanism is disposed in the flash tower 14.
Specifically, the first heating mechanism is a first heat insulating layer which is arranged outside the first row of tubes 11 and forms a first hot oil cavity with the first row of tubes 11, so that the first row of tubes 11 can be heated by containing the heat conducting oil through the first hot oil cavity. Preferably, the first heat-insulating layer at the bottom of the first tube array 11 is provided with a first heat-conducting oil input port, and the first heat-insulating layer at the top of the first tube array 11 is provided with a first heat-conducting oil output port, so that heat-conducting oil is input into the first hot oil cavity through the first heat-conducting oil input port and is output from the first hot oil cavity through the first heat-conducting oil output port.
Further, the second heating mechanism is a second insulating layer which is arranged outside the second tube array 12 and forms a second hot oil cavity with the second tube array 12, so that the second hot oil cavity contains heat conduction oil, and the second tube array 12 can be heated. It will be appreciated that the second protective layer is disposed outside the first and second tubes 121 and 122 so as to form a second thermal oil chamber with the outer walls of the first and second tubes 121 and 122.
Preferably, the second heat insulating layer on the top of the first tube 121 of the second tube array 12 is provided with a second heat conducting oil input port, and the second heat insulating layer on the top of the second tube 122 of the second tube array 12 is provided with a second heat conducting oil output port, so that heat conducting oil is input into the second heat oil cavity through the second heat conducting oil input port, and heat conducting oil in the second heat oil cavity is output through the second heat conducting oil output port.
Further, the third heating mechanism is a third insulating layer disposed outside the third row of tubes 13 and forming a third thermal oil cavity with the third row of tubes 13, so as to receive heat conduction oil through the third thermal oil cavity, and thus the third row of tubes 13 can be heated. It should be understood that the third protective layer is disposed outside the third and fourth tubes 131 and 132 such that a third thermal oil chamber is formed with the outer walls of the third and fourth tubes 131 and 132.
Preferably, a third heat-conducting oil input port is formed in the third heat-insulating layer on the top of the third tube 131 of the third row of tubes 13, and a third heat-conducting oil output port is formed in the third heat-insulating layer on the top of the fourth tube 132 of the third row of tubes 13, so that heat-conducting oil is input into the third heat-conducting oil cavity through the third heat-conducting oil input port and is output from the third heat-conducting oil cavity through the third heat-conducting oil output port.
Further, the fourth heating mechanism is a fourth heat insulation layer which is arranged outside the flash tower 14 and forms a fourth hot oil cavity with the flash tower 14, wherein a fourth heat insulation layer at the bottom of the flash tower 14 is provided with a fourth heat conduction oil input port, and a fourth heat insulation layer at the top of the flash tower 14 is provided with a fourth heat conduction oil output port.
In this embodiment, the bottom of the first row pipe 11 is provided with a first evacuation valve, the bottom of the second row pipe 12 is provided with a second evacuation valve, and the bottom of the third row pipe 13 is provided with a third evacuation valve.
During specific work, the raw materials are conveyed to the tube nest through the raw material pump 10, when the raw materials are conveyed, the first emptying valve, the second emptying valve and the third emptying valve are used for emptying, air does not exist in the tube nest, polymerization liquid is filled in the tube nest, polymerization is carried out in the tube nest, after polymerization is carried out for a period of time, the polymerization liquid is conveyed to the flash tower 14 for distillation and drying, and then distillation is carried out through the distillation tower 16.
It is to be understood that an on-off valve is connected between the input of the flash column 14 and the output of the top of the fourth tube 132, so that the polymerization liquid passes through the on-off valve after a period of time has been polymerized in the column to discharge the polymerization liquid in the column into the flash column 14.
In conclusion, the novel tubular anti-coking thermal polymerization equipment disclosed by the invention replaces the traditional heating polymerization kettle with the tubular, can stir the polymerization materials in the tubular through the stirring sheets and finally convey the polymerization materials to the granulator, can prevent the tubular walls from coking, has high safety, can realize continuous production especially when used for producing mesophase asphalt, does not coke even at a temperature higher than 400 ℃, has high yield and is easy to control the temperature.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. The utility model provides a novel tubular anti-coking heat polymerization equipment which characterized in that includes:
the first row of tubes are in a long strip shape and are vertically arranged, wherein a first rotating rod and a first stirring sheet arranged outside the first rotating rod in a surrounding mode are arranged in the first row of tubes in a rotating mode along the length direction of the first rotating rod;
the second tube array is in a U shape and is vertically arranged, the second tube array comprises a first tube body and a second tube body communicated with the first tube body, a second rotating rod and a second stirring sheet arranged outside the second rotating rod in a surrounding mode are rotatably arranged in the first tube body along the length direction of the first tube body, a third rotating rod and a third stirring sheet arranged outside the third rotating rod in a surrounding mode are rotatably arranged in the second tube body along the length direction of the second tube body, and the top of the first tube array is communicated with the top of the first tube body through a first connecting tube;
the third tube array is in a U shape and is vertically arranged, the third tube array comprises a third tube body and a fourth tube body communicated with the third tube body, a fourth rotating rod and a fourth stirring sheet arranged outside the fourth rotating rod in a surrounding mode are rotatably arranged in the third tube body along the length direction of the third tube body, a fifth rotating rod and a fifth stirring sheet arranged outside the fifth rotating rod in a surrounding mode are rotatably arranged in the fourth tube body along the length direction of the fourth tube body, and the top of the second tube body is communicated with the top of the third tube body through a second connecting tube;
an input port of the flash tower is connected with an output port at the top of the fourth pipe body, the flash tower is provided with a first distillation cavity, and a sixth rotating rod and a sixth stirring sheet which is arranged outside the sixth rotating rod in a surrounding mode are rotatably arranged in the first distillation cavity;
the input port of the granulator is connected with a first output port at the bottom of the flash tower;
a distillation column having an input connected to a second output at the top of the flash column;
the input port of the pressure reduction kettle is connected with the first output port at the top of the distillation tower;
and the input port of the liquid receiving kettle is connected with the second output port at the bottom of the distillation tower.
2. The novel tubular anti-coking heat polymerization device according to claim 1, wherein a first motor connected with the first rotating rod is arranged at the top of the first row of tubes, a second motor connected with the second rotating rod is arranged at the top of the first tube body, a third motor connected with the third rotating rod is arranged at the top of the second tube body, a fourth motor connected with the fourth rotating rod is arranged at the top of the third tube body, a fifth motor connected with the fifth rotating rod is arranged at the top of the fourth tube body, and a sixth motor connected with the sixth rotating rod is arranged at the top of the flash tower.
3. The novel tubular anti-coking thermal polymerization apparatus according to claim 2, further comprising:
and the raw material pump is communicated with the bottom of the first row of pipes through an input pipe.
4. The novel tubular anti-coking heat polymerization device according to claim 3, wherein the first stirring sheet is spirally and circularly arranged outside the first rotating rod along the bottom-to-top direction of the first row of tubes, the second stirring sheet is spirally and circularly arranged outside the second rotating rod along the top-to-bottom direction of the first tube body, the third stirring sheet is spirally and circularly arranged outside the third rotating rod along the bottom-to-top direction of the second tube body, the fourth stirring sheet is spirally and circularly arranged outside the fourth rotating rod along the top-to-bottom direction of the third tube body, and the fifth stirring sheet is spirally and circularly arranged outside the fifth rotating rod along the bottom-to-top direction of the fourth tube body.
5. The novel tubular anti-coking heat polymerization equipment according to claim 4, wherein the distance between the first stirring sheet and the inner wall of the first row of tubes is not more than 2 mm, the distance between the second stirring sheet and the inner wall of the first tube body is not more than 2 mm, the distance between the third stirring sheet and the inner wall of the second tube body is not more than 2 mm, the distance between the fourth stirring sheet and the inner wall of the third tube body is not more than 2 mm, and the distance between the fifth stirring sheet and the inner wall of the fourth tube body is not more than 2 mm.
6. The novel tubular anti-coking heat polymerization equipment according to claim 1, wherein the first row of tubes is externally provided with a first heating mechanism, the second row of tubes is provided with a second heating mechanism, the third row of tubes is provided with a third heating mechanism, and the flash tower is provided with a fourth heating mechanism.
7. The novel tubular anti-coking heat polymerization device according to claim 6, wherein the first heating mechanism is a first heat preservation layer disposed outside the first row of tubes and forming a first hot oil cavity with the first row of tubes, wherein the first heat preservation layer at the bottom of the first row of tubes is provided with a first conduction oil input port, the first heat preservation layer at the top of the first row of tubes is provided with a first conduction oil output port, the second heating mechanism is a second heat preservation layer disposed outside the second row of tubes and forming a second hot oil cavity with the second row of tubes, wherein the second heat preservation layer at the top of the first tube bodies of the second row of tubes is provided with a second conduction oil input port, the second heat preservation layer at the top of the second tube bodies of the second row of tubes is provided with a second conduction oil output port, the third heating mechanism is a third heat preservation layer disposed outside the third row of tubes and forming a third hot oil cavity with the third row of tubes, the third heat-insulating layer at the top of the third tube body of the third tube array is provided with a third heat-conducting oil input port, the third heat-insulating layer at the top of the fourth tube body of the third tube array is provided with a third heat-conducting oil output port, the fourth heating mechanism is arranged outside the flash tower and forms a fourth heat-insulating layer of a fourth hot oil cavity with the flash tower, the fourth heat-insulating layer at the bottom of the flash tower is provided with a fourth heat-conducting oil input port, and the fourth heat-insulating layer at the top of the flash tower is provided with a fourth heat-conducting oil output port.
8. The novel tubular anti-coking heat polymerization equipment according to claim 1, wherein the bottom of the first row of tubes is provided with a first emptying valve, the bottom of the second row of tubes is provided with a second emptying valve, and the bottom of the third row of tubes is provided with a third emptying valve.
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Cited By (1)
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|---|---|---|---|---|
| CN113893811A (en) * | 2021-11-10 | 2022-01-07 | 吴志学 | Method for producing mesophase C-stage resin high-carbon material by using novel heat polymerization pusher |
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