High-viscosity surfactant for emulsifying thick oil, stirring type reaction kettle suitable for high-viscosity system and use process of stirring type reaction kettle in high-viscosity system

Abstract

The invention relates to the technical field of surfactants, in particular to a high-viscosity surfactant for thick oil emulsification, a stirring type reaction kettle suitable for a high-viscosity system and a using process of the stirring type reaction kettle in the high-viscosity system. The cleaning agent comprises a cleaning agent, ethanol amine, dodecylbenzene sulfonate, fatty alcohol-polyoxyethylene ether, and N, N-dimethyl-1, 3-propane diamine. Ethanolamine is compounded on the basis of a boron-based surfactant, so that higher viscosity reduction performance is achieved in a thick oil emulsion; the dodecylbenzene sulfonate plays a role in anion adsorption; the solubilization property of the surfactant is improved by virtue of fatty alcohol-polyoxyethylene ether, and the fatty alcohol-polyoxyethylene ether and dodecylbenzene sulfonate can form an anionic-nonionic surfactant; n, N-dimethyl-1, 3-propane diamine is added, so that on the basis that the whole activator system has good solubilization performance, the thermal stability is improved, and viscosity reduction is assisted.

Description

Technical Field

[0001] The present invention relates to the technical field of surfactants, in particular to a high-viscosity surfactant for emulsifying heavy oil, a stirring reactor suitable for a high-viscosity system and a process for using the same in the high-viscosity system. Background Art

[0002] High-viscosity surfactants are widely used as emulsifiers in many fields, especially in the petroleum industry, where their emulsification and viscosity reduction technology provides an effective solution for the efficient extraction of heavy oil.

[0003] High-viscosity surfactants can emulsify and reduce the viscosity of heavy oil in the petroleum industry. High-viscosity surfactants can reduce the oil-water interfacial tension and form a stable emulsion, thereby reducing the viscosity of heavy oil and improving the recovery rate and fluidity of heavy oil. Specifically, high-viscosity surfactants are used to encapsulate or disperse the viscosity-causing components such as macromolecular hydrocarbons, colloids and asphaltene in heavy oil through emulsification, thereby reducing the cohesion and viscosity of heavy oil.

[0004] In the oil extraction industry, boron-based high-viscosity surfactants are generally used. This is mainly because boron-based high-viscosity surfactants have a significant emulsification and viscosity reduction effect. Secondly, boron-based high-viscosity surfactants are resistant to high temperatures and high salt, making them widely used in the extraction of heavy oil in different geological environments.

[0005] However, a considerable portion of the proven underground oil storage environment exists in metamorphic rock buried hill environments, where the reservoirs are deep and the main components of the bedrock include high-strength granite. This geological environment has been formed through several crustal movements. The environmental temperature and pressure for oil extraction under these geological conditions are extremely high.

[0006] Although boron-based high-viscosity surfactants have a certain degree of heat resistance, their emulsification performance and viscosity reduction effects will be greatly reduced in the above-mentioned extreme high-temperature mining environment. Summary of the Invention

[0007] The purpose of the present invention is to provide a high-viscosity surfactant for emulsifying heavy oil, a stirring reactor suitable for high-viscosity systems, and a process for using the same in high-viscosity systems, so as to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions: A high-viscosity surfactant for emulsifying heavy oil comprises a boron-based high-viscosity surfactant, ethanolamine, dodecylbenzenesulfonate, fatty alcohol polyoxyethylene ether, and N,N-dimethyl-1,3-propylenediamine.

[0009] A surfactant stirred reactor suitable for preparing the high-viscosity system as described above comprises: A reactor body, wherein a driving device is installed on the reactor body, and an output shaft of the driving device is connected to a stirring structure provided in the reactor body; A scraper is arranged in the reactor body, and one side of the scraper is arranged in an arc; A lifting assembly connected to the scraper, wherein the lifting assembly can drive the scraper to move in a vertical direction in space; a switching assembly, disposed on the lifting assembly, cooperating with a trigger structure connected to the stirring structure, and capable of being in contact with or separated from the inner wall of the reactor body when the scraper moves in a vertical direction in space; A pushing member is connected to the lifting assembly, and the pushing member cooperates with the scraper to scrape off the material adhering to the upper surface of the scraper.

[0010] As a further solution of the present invention: the switching component includes: A guide plate, fixedly mounted on the lifting assembly, with a driving groove formed on the guide plate; An engaging wheel rolls in the driving groove, one end of the engaging wheel is provided with a convex shaft, and the other end is connected to the scraper through a pulling structure, and the pulling structure can drive the scraper toward or away from the inner wall of the reactor body when the convex shaft moves; A traction structure is connected to the convex shaft, and the traction assembly can make the engaging wheel have a tendency to move toward the end of the driving groove.

[0011] As a further solution of the present invention: the driving groove includes an inclined groove and a limiting groove provided on the guide plate, and the connection between the limiting groove and the lower side wall of the inclined groove is lower than the center of the limiting groove; The pulling structure includes a connecting shaft coaxially fixedly connected to the engaging wheel, a first connecting rod rotatably mounted on the connecting shaft, and the first connecting rod is connected to a sliding sleeve slidably arranged on the lifting assembly; A second connecting rod is rotatably mounted on the scraper, and one end of the second connecting rod away from the scraper is rotatably connected to the sliding sleeve.

[0012] As a further solution of the present invention: the traction structure includes a pulling plate slidably arranged on the guide plate, the pulling plate is provided with a strip-shaped through groove along its length, and the strip-shaped through groove is in rolling engagement with the convex shaft; The pulling structure further includes a column spring connecting the pulling plate and the guide plate.

[0013] As a further solution of the present invention: the trigger structure includes a connecting plate connected to the stirring structure, the connecting plate is provided with an upper trigger member and a lower trigger member, the upper trigger member is symmetrically provided with two groups of inclined surfaces, and the lower trigger member is inclined.

[0014] As a further solution of the present invention: the stirring structure includes a rotating shaft connected to the output shaft of the driving device, a stirring shaft is provided on the rotating shaft, and a side stirring member is detachably mounted on one end of the stirring shaft away from the rotating shaft; The stirring structure further includes a first spiral component and a second spiral component connected to the rotating shaft.

[0015] As a further solution of the present invention, the lifting assembly includes a sleeve tube fixed on the rotating shaft, a follower sleeve is slidably sleeved on the sleeve tube, an annular groove is formed on the follower sleeve, a connecting ring is rotatably installed in the annular groove, and the connecting ring is connected to the electric telescopic rod provided on the reactor body; The lifting assembly further comprises a sliding guide structure connected to the follower sleeve, and the sliding guide structure is slidably connected to the scraper and the sliding sleeve.

[0016] As a further solution of the present invention: the sliding guide structure includes a bracket fixedly connected to the follower sleeve, the bracket is connected to a connecting rod slidably connected to the sliding sleeve, and the connecting rod is mounted on an end away from the bracket with a guide rod slidably connected to the scraper; A guide block is provided on the inner wall of the follower sleeve, and the guide block is slidably connected to a connecting groove provided along the length direction of the sleeve pipe.

[0017] As a further solution of the present invention: two sets of vertical shafts are symmetrically arranged on the pushing member, and the vertical shafts are slidably connected to the bracket; The pushing member is further provided with a plurality of sheaves, which are in rolling connection with an annular guide member provided in the reactor body; Two groups of scraping inclined surfaces are symmetrically arranged on one side of the pushing member facing the rotating shaft, and the two groups of scraping inclined surfaces form a "V"-shaped structure.

[0018] A process for using the stirring reactor suitable for a high-viscosity system in a high-viscosity system comprises the following steps: Step 1: Pour the raw materials into the reactor body and start the driving device to drive the stirring mechanism to stir the materials; Step 2: Control the movement of the lifting assembly so that the scraper moves downward in contact with the inner wall of the reactor body, so as to scrape the material in the reactor body at the position where the material contacts the air downward; Step 3: When the scraper moves to the lower end of its stroke, the switching component moves to move the scraper away from the inner wall of the reactor body, and then the scraper moves upward; Step 4: When the scraper rises to the upper end of the stroke, the switching component moves again, causing the scraper to move toward the inner wall of the reactor body, and cooperates with the pushing piece during the movement to scrape off the material adhering to the upper surface of the scraper.

[0019] Compared with the prior art, the present invention has the following beneficial effects: The new high-viscosity surfactant formed based on boron-based surfactants is compounded with ethanolamine, which has a higher viscosity reduction performance in heavy oil emulsions to adapt to the viscosity reduction purpose during the heavy oil emulsification process under extremely high temperature environments.

[0020] On this basis, dodecylbenzene sulfonate is added to play an anion adsorption role, which can adsorb negative ions in underground reservoirs during the mining process, further reducing the emulsification and viscosity reduction effect of heavy oil; with the help of fatty alcohol polyoxyethylene ether, the solubilization performance of the surfactant is improved, and it can form an anionic-nonionic surfactant with dodecylbenzene sulfonate; finally, in order to ensure the stability of the entire surfactant system and avoid the hydrolysis of fatty alcohol polyoxyethylene ether and dodecylbenzene sulfonate in acidic and alkaline environments, which will prevent them from being able to achieve their due solubility, N,N-dimethyl-1,3-propylenediamine is added to ensure that the entire surfactant system has good solubility, improve thermal stability, and assist in viscosity reduction.

[0021] In the stirring reactor suitable for high-viscosity systems involved in the present invention, the switching component and trigger structure are set up, so that when the scraper moves downward, the scraper can stably fit with the inner wall of the reactor body, thereby scraping the material on the inner wall of the reactor body, so as to scrape the material on the contact surface between the material and the air downward, avoid that this part of the material cannot be stirred, and improve the stirring effect of the material. At the same time, when the scraper moves upward, it can be separated from the inner wall of the reactor body, and prevent the material from being scraped along the inner wall of the reactor to the contact surface between the material and the air, resulting in this part of the material cannot be stirred, further improving the stirring effect and ensuring production quality.

[0022] The pushing piece provided can, on the one hand, enable the scraper to cooperate with the pushing piece when moving toward the inner wall of the reactor body to scrape off the material adhering to the surface of the scraper, thereby preventing the material adhering to the scraper from adhering to the inner wall of the reactor body, causing this part of the material to be unable to be stirred; on the other hand, under the action of the "V"-shaped structure formed by the scraping slope, the material scraped off the scraper can be gathered toward the middle of the "V"-shaped structure, and when the scraper is separated from the pushing piece, this part of the material can fall back into the material in the reactor body under the action of gravity, so as to realize circulation and avoid accumulation of material on the pushing piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The figure is a schematic structural diagram of an embodiment of a stirred reactor suitable for high-viscosity systems.

[0024] Figure 2 The figure is a schematic diagram of the internal structure of a stirring reactor suitable for high-viscosity systems in one embodiment.

[0025] Figure 3 This is a schematic diagram of the internal structure of a stirred reactor suitable for high-viscosity systems from another angle in one embodiment.

[0026] Figure 4 The figure is a schematic diagram of the stirring structure of an embodiment of a stirring reactor suitable for high-viscosity systems.

[0027] Figure 5 This is a schematic structural diagram of a pushing member and an annular guide member in an embodiment of a stirred reactor suitable for high-viscosity systems.

[0028] Figure 6 The figure is a schematic structural diagram of the relative positions of the scraper and the pushing member in an embodiment of a stirring reactor suitable for high-viscosity systems.

[0029] Figure 7 This is an exploded view of the structure of the lifting assembly in an embodiment of a stirred reactor suitable for high-viscosity systems.

[0030] Figure 8 This is a schematic structural diagram of a switching component in an embodiment of a stirred reactor suitable for high-viscosity systems.

[0031] Figure 9 This is an exploded view of the local structure of the switching component in an embodiment of a stirred reactor suitable for high-viscosity systems.

[0032] Figure 10 The figure is a schematic planar structural diagram of a switching component in an embodiment of a stirred reactor suitable for high-viscosity systems.

[0033] In the figure: 1, reactor body; 2, driving device; 3, rotating shaft; 4, stirring shaft; 5, first screw; 6, second screw; 7, side stirring member; 8, sleeve pipe; 801, connecting groove; 9, electric telescopic rod; 10, connecting ring; 11, follower sleeve; 1101, annular groove; 1102, guide block; 12, bracket; 13, connecting rod; 14, guide rod; 15, scraper; 16, vertical shaft; 17, pushing member; 1701, scraping inclined surface; 18, Grooved wheel; 19. Annular guide member; 20. Guide plate; 2001. Limiting groove; 2002. Inclined groove; 2003. Guide groove; 21. Engaging wheel; 22. Protruding shaft; 23. Pulling plate; 2301. Strip-shaped through groove; 2302. Sliding connection portion; 24. Columnar spring; 25. Connecting plate; 26. Upper trigger member; 2601. Inclined surface; 27. Lower trigger member; 28. Connecting shaft; 29. First connecting rod; 30. Sliding sleeve; 31. Second connecting rod. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0036] A high-viscosity surfactant for emulsifying heavy oil, comprising a boron-based high-viscosity surfactant, ethanolamine, dodecylbenzenesulfonate, fatty alcohol polyoxyethylene ether, and N,N-dimethyl-1,3-propylenediamine; Among them, the boron-based high-viscosity surfactant is: Boric acid; 1,3-propylene glycol polyether; Sodium metabisulfite; Maleic anhydride.

[0037] Specifically, the new high-viscosity surfactant based on a boron-based surfactant formed by the above substances has a solute ratio of: 45 parts of boric acid, 100 parts of 1,3-propylene glycol polyether, 80 parts of sodium metabisulfite, 165 parts of maleic anhydride, 400 parts of ethanolamine, 75 parts of dodecylbenzenesulfonate, 90 parts of fatty alcohol polyoxyethylene ether, 360 parts of N,N-dimethyl-1,3-propylenediamine, wherein parts are parts by mass.

[0038] The other component of the high viscosity surfactant for heavy oil emulsification is solvent water.

[0039] In the present invention, a new high-viscosity surfactant formed based on a boron-based surfactant is compounded with ethanolamine, which exerts a higher viscosity reduction performance in heavy oil emulsions to adapt to the purpose of viscosity reduction in the heavy oil emulsification process under extremely high temperature environments.

[0040] On this basis, dodecylbenzene sulfonate is added to play an anion adsorption role, which can adsorb negative ions in underground reservoirs during the mining process, further reducing the emulsification and viscosity reduction effect of heavy oil; with the help of fatty alcohol polyoxyethylene ether, the solubility of the surfactant is improved, and it can form an anionic-nonionic surfactant with dodecylbenzene sulfonate; finally, in order to ensure the stability of the entire surfactant system and avoid the hydrolysis of fatty alcohol polyoxyethylene ether and dodecylbenzene sulfonate in acidic and alkaline environments, which will prevent them from being able to achieve the desired solubility, N,N-dimethyl-1,3-propylenediamine is added to ensure that the entire surfactant system has good solubility, improve thermal stability, and assist in viscosity reduction.

[0041] The present invention also provides a reactor suitable for preparing the high-viscosity surfactant for emulsification of heavy oil as described above. The reactor is a stirred reactor suitable for high-viscosity systems and can prepare the high-viscosity surfactant for heavy oil as described above. For details, see Figures 1 to 10 In an embodiment of the present invention, a stirring-type reactor suitable for a high-viscosity system includes a reactor body 1, a scraper 15, a lifting assembly, a switching assembly, and a pushing member 17, specifically as follows: The driving device 2 is installed on the reactor body 1, and the output shaft of the driving device 2 is connected to the stirring structure provided in the reactor body 1; The stirring structure includes a rotating shaft 3 connected to the output shaft of the driving device 2, a stirring shaft 4 is provided on the rotating shaft 3, and a side stirring member 7 is detachably mounted on one end of the stirring shaft 4 away from the rotating shaft 3; The stirring structure further includes a first spiral component 5 and a second spiral component 6 connected to the rotating shaft 3 .

[0042] In this embodiment, the material is poured into the reactor body 1, and then the driving device 2 is started. At this time, the output shaft of the driving device 2 can drive the rotating shaft 3 connected thereto to rotate, and make the stirring shaft 4, the side stirring member 7, the first spiral member 5 and the second spiral member 6 perform circular motion to stir and mix the material, wherein: The side stirring member 7 and the stirring shaft 4 are detachably connected by bolts, so that when stirring materials with different viscosities, the side stirring member 7 can be installed or removed according to actual needs to reduce the resistance to rotation of the rotating shaft 3. For example, when stirring materials with higher viscosity, the side stirring member 7 can be removed. At this time, only the stirring shaft 4, the first spiral member 5 and the second spiral member 6 make circular motion. Although the stirring effect is slightly reduced, the resistance to rotation of the rotating shaft 3 will become smaller, thereby reducing the load of the driving device 2. When stirring materials with lower viscosity, the side stirring member 7 can be connected to the stirring shaft 4, so that the stirring shaft 4, the side stirring member 7, the first spiral member 5 and the second spiral member 6 can all make circular motion. At this time, due to the low viscosity of the material, the resistance to rotation of the rotating shaft 3 is smaller, and the stirring effect is guaranteed.

[0043] Furthermore, by providing the first spiral 5 and the second spiral 6, when the rotating shaft 3 rotates, the first spiral 5 and the second spiral 6 can both make circular motions, so that the material can be transported upward. At this time, the material on the side moves downward, and the material can circulate in the reactor body 1, thereby improving the fluidity of the material and ensuring that the materials can be fully stirred. Among them, since the radius of the first spiral 5 is large, when the first spiral 5 rotates, it also has the effect of shearing the material, thereby further improving the mixing effect of the material.

[0044] See also Figure 7-Figure 8 The scraper 15 is arranged in the reactor body 1, and one side of the scraper 15 is set as an arc, and the radius of the arc is the same as the radius of the reactor body 1; The lifting assembly is connected to the scraper 15 and can drive the scraper 15 to move vertically in space. The lifting assembly includes a sleeve tube 8 fixed to the rotating shaft 3. A follower sleeve 11 is slidably sleeved on the sleeve tube 8. An annular groove 1101 is formed on the follower sleeve 11. A connecting ring 10 is rotatably installed in the annular groove 1101. The connecting ring 10 is connected to an electric telescopic rod 9 provided on the reactor body 1. The lifting assembly further includes a sliding guide structure connected to the follower sleeve 11, the sliding guide structure being slidably connected to the scraper 15 and the sliding sleeve 30, the sliding guide structure including a bracket 12 fixedly connected to the follower sleeve 11, a connecting rod 13 slidably connected to the sliding sleeve 30 being connected to the bracket 12, and a guide rod 14 slidably connected to the scraper 15 being mounted on an end of the connecting rod 13 away from the bracket 12; A guide block 1102 is provided on the inner wall of the follower sleeve 11 , and the guide block 1102 is slidably connected to the connecting groove 801 provided along the length direction of the sleeve tube 8 .

[0045] During the rotation of the rotating shaft 3, the sleeve tube 8 will rotate along with the rotating shaft 3. At this time, under the action of the guide block 1102 and the connecting groove 801, the follower sleeve 11 can follow the sleeve tube 8 to make circular motion, and can also make circular motion along the length direction of the sleeve tube 8. When the follower sleeve 11 makes circular motion, the bracket 12 will also make circular motion, and drive the scraper 15 to make circular motion through the connecting rod 13 and the guide rod 14, that is, the scraper 15 can rotate along with the rotating shaft 3, and when the scraper 15 enters the material, it can also produce a stirring effect on the material.

[0046] When the follower sleeve 11 follows the rotating shaft 3 to make a circular motion, the follower sleeve 11 will also rotate relative to the connecting ring 10. When the follower sleeve 11 rotates, when the actuating end of the electric telescopic rod 9 moves, it can drive the follower sleeve 11 to move along the length direction of the sleeve tube 8, so that the lifting and lowering of the scraper 15 and its rotation do not interfere with each other. At the same time, the electric telescopic rod 9 can be fixed on the reactor body 1, thereby improving its stability and reducing the space occupied in the reactor body 1.

[0047] See also Figures 8 to 10 The switching assembly is provided on the lifting assembly, and the switching assembly cooperates with the trigger structure connected to the stirring structure, and can be attached to or separated from the inner wall of the reactor body 1 when the scraper 15 moves in the vertical direction of the space; It includes: a guide plate 20, an engaging wheel 21 and a traction structure.

[0048] The guide plate 20 is fixedly mounted on the bracket 12. A driving groove is formed on the guide plate 20. The driving groove includes an inclined groove 2002 and a limiting groove 2001 provided on the guide plate 20. The connection between the limiting groove 2001 and the lower side wall of the inclined groove 2002 is lower than the center of the limiting groove 2001. The interlocking wheel 21 rolls in the driving groove. One end of the interlocking wheel 21 is provided with a protruding shaft 22, and the other end is connected to the scraper 15 via a pulling structure. The pulling structure can drive the scraper 15 toward or away from the inner wall of the reactor body 1 when the protruding shaft 22 moves. The pulling structure includes a connecting shaft 28 coaxially fixedly connected to the engaging wheel 21, a first connecting rod 29 rotatably mounted on the connecting shaft 28, and the first connecting rod 29 is connected to a sliding sleeve 30 slidably provided on the connecting rod 13; A second connecting rod 31 is rotatably mounted on the scraper 15 , and one end of the second connecting rod 31 away from the scraper 15 is rotatably connected to the sliding sleeve 30 .

[0049] In the initial state, the traction structure cooperates with the protruding shaft 22, causing the engaging wheel 21 to have a tendency to move away from the bracket 12. Under this tendency, the engaging wheel 21 has a tendency to be in the limiting groove 2001 or move toward the inclined groove 2002 away from the end of the limiting groove 2001. Specifically: When the interlocking wheel 21 is in the limiting groove 2001, since the cam 22 has a tendency to be pulled away from the bracket 12, the interlocking wheel 21 can be stably maintained in the limiting groove 2001. At this time, the scraper 15 can be separated from the inner wall of the reactor body 1, and the scraper 15 performs an upward movement to avoid scraping the material upward along the inner wall of the reactor body 1, causing the material to be scraped to the contact surface between the material and the air and adhere to the inner wall of the reactor body 1, so that this part of the material cannot be stirred.

[0050] When the scraper 15 follows the bracket 12 to move to the highest point of the stroke, the scraper 15 is at the top of the material. At this time, under the action of the trigger structure, the engaging wheel 21 can separate the limiting groove 2001, and under the action of the parallel traction structure, the engaging wheel 21 can move along the length direction of the inclined groove 2002. At this time, the first connecting rod 29 can push the sliding sleeve 30 to move downward along the length direction of the connecting rod 13. At the same time, the sliding sleeve 30 pushes the scraper 15 to move along the length direction of the guide rod 14 through the second connecting rod 31 until the scraper 15 is in contact with the inner wall of the reactor body 1. Then the scraper 15 follows the bracket 12 to move downward, and moves downward from the top of the material until the scraper 15 moves into the inside of the material, so as to push the material that has not been stirred at the contact position between the material and the air on the side wall of the reactor body 1 to the lower part of the material, so that this part of the material can be stirred to improve the overall stirring effect of the material.

[0051] The traction structure is connected to the convex shaft 22, and the traction assembly can make the engaging wheel 21 have a tendency to move toward the end of the driving groove; The pulling structure includes a pulling plate 23 slidably disposed on the guide plate 20. The pulling plate 23 is provided with a strip-shaped through-slot 2301 along its length. The strip-shaped through-slot 2301 is in rolling engagement with the protruding shaft 22. Furthermore, the pulling plate 23 is further provided with a sliding connection portion 2302. The sliding connection portion 2302 is slidably connected to a guide groove 2003 provided on a side of the guide plate 20. The pulling structure further includes a columnar spring 24 connecting the pulling plate 23 and the guide plate 20 .

[0052] In the initial state, the cylindrical spring 24 is in a stretched state, which makes the cylindrical spring 24 have a tendency to pull the pulling plate 23 away from the bracket 12. At the same time, the pulling plate 23 cooperates with the convex shaft 22 through the strip groove 2301, so that the engaging wheel 21 can have a tendency to move away from the bracket 12. Under this trend, the engaging wheel 21 can be stably maintained in the limiting groove 2001 or move along the length direction of the inclined groove 2002, thereby ensuring that the scraper 15 is separated or fitted with the interior of the reactor body 1, thereby improving the position stability of the scraper 15 relative to the inner wall of the reactor body 1.

[0053] It should be noted that when the interlocking wheel 21 is in the inclined groove 2002, it still has a tendency to move away from the bracket 12, so that under this trend, when the scraper 15 is in contact with the inner wall of the reactor body 1, there is still a certain interaction force between the scraper 15 and the inner wall of the reactor body 1, thereby ensuring the fit between the scraper 15 and the inner wall of the reactor body 1, and improving the scraping effect of the scraper 15 on the material. At the same time, friction will be generated between the scraper 15 and the inner wall of the reactor body 1, which will inevitably cause the scraper 15 to wear and cause the length of the scraper 15 to shorten. At this time, since the interlocking wheel 21 has a tendency to move toward the end of the inclined groove 2002, the scraper 15 can still be in contact with the inner wall of the reactor body 1, thereby ensuring its stability in scraping the material.

[0054] See also Figure 3 、 Figure 8 、 Figure 10 The trigger structure is connected to the rotating shaft 3, and the trigger structure cooperates with the convex shaft 22 to drive the engaging wheel 21 to move along the length direction of the guide groove. The trigger structure includes a connecting plate 25 connected to the rotating shaft 3, and an upper trigger member 26 and a lower trigger member 27 are provided on the connecting plate 25. Two groups of inclined surfaces 2601 are symmetrically provided on the upper trigger member 26, and the lower trigger member 27 is inclined.

[0055] In the initial state, the scraper 15 is separated from the inner wall of the reactor body 1, and the convex shaft 22 is not in contact with the upper trigger member 26. At this time, the scraper 15 is on the upper part of the material. When it is necessary to scrape the material at the contact position between the material and the air downward, the bracket 12 will further drive the scraper 15 to move upward. At this time, the convex shaft 22 can abut against the inclined surface 2601 on the upper trigger member 26, so that the convex shaft 22 can drive the engaging wheel 21 to separate from the limiting groove 2001. Subsequently, the engaging wheel 21 moves along the inclined groove 2002, so that the scraper 15 can fit with the inner wall of the reactor body 1, and when the scraper 15 moves downward, it can scrape the material at the contact position between the material and the air downward to improve the stirring effect of this part of the material.

[0056] As the scraper 15 moves downward, when it moves to a certain depth, the convex shaft 22 will abut against the lower trigger member 27, and under the guidance of the lower trigger member 27, the convex shaft 22 can drive the engaging wheel 21 to move along the length direction of the inclined groove 2002 toward the limiting groove 2001. At this time, the scraper 15 will move away from the inner wall of the reactor body 1. When the engaging wheel 21 enters the limiting groove 2001, the position of the scraper 15 can be locked, so that the scraper 15 can be separated from the inner wall of the reactor body 1 during the upward movement, thereby preventing the scraper 15 from scraping the material upward along the side wall of the reactor body 1 when moving upward, causing the material to be pushed back to the contact surface between the material and the air, resulting in this part of the material not being fully stirred.

[0057] It should also be noted that in the present application, the upper trigger member 26 and the lower trigger member 27, the guide plate 20, the interlocking wheel 21, and the cam shaft 22 are all above the material. At the same time, the movement distance of the scraper 15 in the vertical direction can be regarded as including the contact surface height between the material and the air during each stirring, that is, the scraper 15 can move from the upper part of the material to the inside of the material each time during the lifting process, so as to meet the requirements of stirring materials of different depths, and the scraper 15 can scrape the material adhering to the side wall of the reactor body 1.

[0058] See also Figure 5~Figure 6 The pushing member 17 is connected to the bracket 12, and the pushing member 17 cooperates with the scraper 15 to scrape off the material adhering to the upper surface of the scraper 15; Two sets of vertical shafts 16 are symmetrically arranged on the pushing member 17, and the vertical shafts 16 are slidably connected to the bracket 12; The pushing member 17 is further provided with a plurality of sheaves 18, and the sheaves 18 are in rolling connection with an annular guide member 19 provided in the reactor body 1; Two groups of scraping inclined surfaces 1701 are symmetrically provided on one side of the pushing member 17 facing the rotating shaft 3 , and the two groups of scraping inclined surfaces 1701 form a “V”-shaped structure.

[0059] In this embodiment, the cooperation of the multiple sets of sheaves 18 and the annular guide 19 enables the pushing member 17 to remain horizontal and to perform circular motion along the annular guide 19. The vertical shaft 16 is slidably connected to the bracket 12, so that when the bracket 12 performs circular motion, it can drive the pushing member 17 to perform circular motion, thereby ensuring the corresponding relationship between the pushing member 17 and the scraper 15 in the longitudinal position. The purpose of maintaining the corresponding relationship between the pushing member 17 and the scraper 15 in the longitudinal position is: When the scraper 15 is separated from the inner wall of the reactor body 1 and moves upward to the end of the stroke, the scraper 15 and the pushing member 17 are in a misaligned state (see Figure 6 ), and when the engaging wheel 21 is separated from the limiting groove 2001 and moves along the inclined groove 2002, the scraper 15 can move toward the inner wall of the reactor body 1 ( Figure 6 The direction of the arrow in the figure can be understood as the movement direction of the scraper 15 in the above state). At the same time, the upper surface of the scraper 15 is coplanar with the lower surface of the pushing member 17, so that during the movement of the scraper 15, the pushing member 17 can scrape off the material adhering to the upper surface of the scraper 15, thereby preventing the material adhering to the upper surface of the scraper 15 from adhering to the inner wall of the reactor body 1 when the scraper 15 is in contact with the inner wall of the reactor body 1. The scraper 15 cannot act on this part of the material again, resulting in that this part of the material cannot be scraped or stirred.

[0060] Furthermore, since one side of the pushing member 17 has a "V"-shaped structure formed by a scraping slope 1701, when the pushing member 17 interacts with the upper surface of the scraper 15, the material on the scraper 15 can be gathered toward the connection between the two sets of scraping slopes 1701 under the action of the scraping slope 1701, so that the material can accumulate in this area, thereby ensuring that when the scraper 15 is in contact with the inner wall of the reactor body 1, the material accumulated on the pushing member 17 can fall back into the material in the reactor body 1 under the action of gravity, thereby realizing circulation and avoiding the accumulation of material on the pushing member 17.

[0061] As an embodiment of the present invention, a process for using the stirring reactor suitable for a high-viscosity system in a high-viscosity system is also proposed, comprising the following steps: Step 1: Pour the raw materials into the reactor body 1, start the driving device 2 to drive the stirring structure to stir the materials; Step 2: Control the movement of the lifting assembly so that the scraper 15 moves downward while in contact with the inner wall of the reactor body 1, so as to scrape the material in the reactor body 1 at the position where the material contacts the air downward; Step 3: When the scraper 15 moves to the lower end of its stroke, the switching component is activated to move the scraper 15 away from the inner wall of the reactor body 1, and then the scraper 15 moves upward; Step 4: When the scraper 15 rises to the upper end of the stroke, the switching assembly is activated again, causing the scraper 15 to move toward the inner wall of the reactor body 1 and cooperate with the pushing member 17 during the movement to scrape off the material adhering to the upper surface of the scraper 15.

[0062] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0063] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A high viscosity surfactant for emulsifying heavy oil, characterized in that: Solutes including: Boric acid; 1,3-propylene glycol polyether; Sodium metabisulfite; Maleic anhydride; Ethanolamine; Dodecylbenzenesulfonate; Fatty alcohol polyoxyethylene ether; N,N-dimethyl-1,3-propylenediamine.

2. A stirred reactor suitable for high viscosity systems, used for preparing the high viscosity surfactant for emulsifying heavy oil as claimed in claim 1, characterized in that: include: A reactor body, wherein a driving device is installed on the reactor body, and an output shaft of the driving device is connected to a stirring structure provided in the reactor body; It is characterized by further comprising: A scraper is arranged in the reactor body, and one side of the scraper is arranged in an arc; A lifting assembly connected to the scraper, wherein the lifting assembly can drive the scraper to move in a vertical direction in space; a switching assembly, disposed on the lifting assembly, cooperating with a trigger structure connected to the stirring structure, and capable of being in contact with or separated from the inner wall of the reactor body when the scraper moves in a vertical direction in space; A pushing member is connected to the lifting assembly, and the pushing member cooperates with the scraper to scrape off the material adhering to the upper surface of the scraper.

3. A stirred reactor suitable for high viscosity systems according to claim 2, characterized in that: The switching component includes: A guide plate, fixedly mounted on the lifting assembly, with a driving groove formed on the guide plate; An engaging wheel rolls in the driving groove, one end of the engaging wheel is provided with a convex shaft, and the other end is connected to the scraper through a pulling structure, and the pulling structure can drive the scraper toward or away from the inner wall of the reactor body when the convex shaft moves; A traction structure is connected to the convex shaft, and the traction assembly can make the engaging wheel have a tendency to move toward the end of the driving groove.

4. A stirred reactor suitable for high viscosity systems according to claim 3, characterized in that: The driving groove includes an inclined groove and a limiting groove provided on the guide plate, wherein the connection between the limiting groove and the lower side wall of the inclined groove is lower than the center of the limiting groove; The pulling structure includes a connecting shaft coaxially fixedly connected to the engaging wheel, a first connecting rod rotatably mounted on the connecting shaft, and the first connecting rod is connected to a sliding sleeve slidably arranged on the lifting assembly; A second connecting rod is rotatably mounted on the scraper, and one end of the second connecting rod away from the scraper is rotatably connected to the sliding sleeve.

5. The stirring reactor suitable for high viscosity system according to claim 3, characterized in that: The traction structure includes a pulling plate slidably arranged on the guide plate, the pulling plate is provided with a strip-shaped through groove along its length, and the strip-shaped through groove is in rolling engagement with the convex shaft; The pulling structure further includes a cylindrical spring connecting the pulling plate and the guide plate; The trigger structure includes a connecting plate connected to the stirring structure, an upper trigger member and a lower trigger member are provided on the connecting plate, two groups of inclined surfaces are symmetrically provided on the upper trigger member, and the lower trigger member is inclined.

6. The stirring reactor suitable for high viscosity system according to claim 3, characterized in that: The stirring structure includes a rotating shaft connected to the output shaft of the driving device, a stirring shaft is provided on the rotating shaft, and a side stirring member is detachably mounted on one end of the stirring shaft away from the rotating shaft; The stirring structure further includes a first spiral component and a second spiral component connected to the rotating shaft.

7. The stirring reactor suitable for high viscosity system according to claim 6, characterized in that: The lifting assembly includes a sleeve tube fixed on the rotating shaft, a follower sleeve is slidably sleeved on the sleeve tube, an annular groove is formed on the follower sleeve, a connecting ring is rotatably installed in the annular groove, and the connecting ring is connected to the electric telescopic rod provided on the reactor body; The lifting assembly further comprises a sliding guide structure connected to the follower sleeve, and the sliding guide structure is slidably connected to the scraper and the sliding sleeve.

8. The stirring reactor suitable for high viscosity system according to claim 7, characterized in that: The sliding guide structure includes a bracket fixedly connected to the follower sleeve, the bracket is connected to a connecting rod slidably connected to the sliding sleeve, and the end of the connecting rod away from the bracket is equipped with a guide rod slidably connected to the scraper; A guide block is provided on the inner wall of the follower sleeve, and the guide block is slidably connected to a connecting groove provided along the length direction of the sleeve pipe.

9. The stirring reactor suitable for high viscosity system according to claim 8, characterized in that: Two sets of vertical shafts are symmetrically arranged on the pushing member, and the vertical shafts are slidably connected to the bracket; The pushing member is further provided with a plurality of sheaves, which are in rolling connection with an annular guide member provided in the reactor body; The pushing member is symmetrically provided with two sets of scraping inclined surfaces on one side facing the rotating shaft, and the two sets of scraping inclined surfaces form a "V"-shaped structure.

10. A process for using the stirring reactor suitable for high-viscosity system according to any one of claims 2 to 9 in a high-viscosity system, characterized in that: The following steps are involved: Step 1: Pour the raw materials into the reactor body and start the driving device to drive the stirring mechanism to stir the materials; Step 2: Control the movement of the lifting assembly so that the scraper moves downward in contact with the inner wall of the reactor body, so as to scrape the material in the reactor body at the position where the material contacts the air downward; Step 3: When the scraper moves to the lower end of its stroke, the switching component moves to move the scraper away from the inner wall of the reactor body, and then the scraper moves upward; Step 4: When the scraper rises to the upper end of the stroke, the switching component moves again, causing the scraper to move toward the inner wall of the reactor body, and cooperates with the pushing piece during the movement to scrape off the material adhering to the upper surface of the scraper.

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