Blending reaction kettle for preparing oil-soluble corrosion inhibitor

Abstract

The invention belongs to the technical field of reaction kettles, and discloses a blending reaction kettle for preparing an oil-soluble corrosion inhibitor, which comprises a kettle body and a kettle cover, a stirring structure is fixedly mounted at the top end of the kettle cover and comprises a stirring motor fixedly mounted at the top end of the kettle cover, a stirring column is mounted on an output shaft of the stirring motor through a coupler, a stirring piece is welded to the bottom end of the stirring column, and stirring rods are welded to the outer side of the stirring piece at equal intervals; round rods are rotatably connected to the interior of the stirring part at equal intervals, stirring blades are rotatably connected between the bottom ends of the multiple round rods, an oil-soluble corrosion inhibitor material is internally and externally layered in the reaction kettle, the outer layer can be used for overall stirring to ensure uniform heat transfer, and high-speed stirring of the inner layer is beneficial to rapid dispersion and stirring. And the dispersion and permeation processes of the corrosion inhibitor in a medium are accelerated, and the opportunity of contact with a reactant or a catalyst is improved, so that corrosion is inhibited more effectively.

Description

Technical Field

[0001] The invention belongs to the technical field of reactors, and in particular relates to a mixing reactor for preparing an oil-soluble corrosion inhibitor. Background Art

[0002] A variety of corrosion inhibitors are used to inhibit the corrosion of steel in corrosive media, such as water-soluble corrosion inhibitors, coating corrosion inhibitors, etc. Among them, oil-soluble corrosion inhibitors are often used to prevent the internal structure of steel from corrosion and have better protective performance. The existing preparation methods of oil-soluble corrosion inhibitors usually adopt traditional reactors or mixing methods, which have complex process flows, long reaction times, and problems such as difficulty in ensuring product purity and environmental pollution.

[0003] Traditional reactors are inconvenient for environmental control and difficult to accurately adjust reaction conditions, resulting in unstable product quality. The mixing method has problems such as uneven dispersion of raw materials, low reaction efficiency, and difficulty in large-scale preparation. In addition, the synthesis routes of many traditional corrosion inhibitors involve a large amount of organic solvents and toxic and harmful chemicals, resulting in serious environmental pollution problems; The existing reactor needs to use a stirring device, and the stirring device is used to stir the inside and outside of the reactor to form a vortex inside. However, it is not convenient to separate the raw materials during this process, so the raw materials are stirred separately, resulting in an unsatisfactory raw material mixing effect. Summary of the invention

[0004] The present invention aims at the problem that the reactor in the prior art needs to use a stirring device, and the stirring device is used to stir the inside and outside of the reactor to form a vortex inside, but it is not convenient to separate the raw materials in this process, so that the raw materials are separated and stirred, resulting in an unsatisfactory raw material mixing effect. The following technical solution is proposed: A blending reactor for preparing an oil-soluble corrosion inhibitor comprises: a reactor body and a reactor cover; a stirring structure is fixedly installed on the top of the reactor cover, the stirring structure comprises a stirring motor fixedly installed on the top of the reactor cover, the output shaft of the stirring motor is equipped with a stirring column through a coupling, a stirring piece is welded on the bottom end of the stirring column, stirring rods are equidistantly welded on the outside of the stirring piece, round rods are equidistantly rotatably connected inside the stirring piece, stirring blades are rotatably connected between the bottom ends of a plurality of the round rods, arc-shaped blades are rotatably connected to the bottom ends of the stirring blades and the arc-shaped blades are fixedly installed inside the stirring piece.

[0005] Preferably, a first gear is welded to the top of the round rod, and several of the first gears are meshingly connected to the outside with a serrated ring, and the serrated ring is fixedly installed on the bottom end of the inner wall of the kettle cover, and several of the round rods are clamped and installed at the bottom end of the serrated ring on the outside with a blocking plate, and the blocking plate is rotatably connected to the bottom end of the serrated ring.

[0006] Preferably, a second gear is welded to the bottom end of several of the round rods, and several of the second gears are meshedly connected to the outside with a driven gear, which is fixedly mounted on the top of the stirring blade, and a protective cover is sleeved on the outside of several of the round rods at the position outside the second gear and the driven gear.

[0007] Preferably, a driving rod is welded to the top edge of the stirring blade, a tilting ring is fitted and connected to the top of the outer surface of the driving rod, a screening barrel is installed at the top height of the tilting ring, and a spring telescopic rod is clamped and installed on the top of the screening barrel.

[0008] Preferably, a limit plate is clamped and installed on the top end of the spring telescopic rod, the round rod is rotatably connected to the inside of the limit plate, and the limit plate is welded to the inside of the stirring member.

[0009] Preferably, circular holes are equidistantly formed on the outer sides of the stirring member and the screening barrel, and the ratio of the number of circular holes of the stirring member to that of the screening barrel is two to one.

[0010] Preferably, a pneumatic sealing structure is installed inside the kettle cover, and the pneumatic sealing structure includes a positioning ring fixedly installed on the edge of the inner wall of the kettle cover, a flow guide cover is fixedly installed on the bottom end of the positioning ring, a piston rod is slidably connected inside the flow guide cover, an extrusion ring is welded to the bottom end of the piston rod, an air bag is bonded to the bottom end of the extrusion ring, a placement ring is fixedly sleeved on the outside of the extrusion ring, and the placement ring is fixedly installed on the inner wall of the kettle body.

[0011] Preferably, a spring is welded at the top position of the piston rod inside the air deflector and the top of the spring is fixedly installed on the bottom end of the inner wall of the air deflector, a movable ring is slidably connected to the outside of the air deflector up and down, a mounting bar is fixedly installed on the top of the movable ring, a movable bar is slidably connected to the outside of the mounting bar, and the top of the mounting bar is located at the top position of the movable bar and is connected to a screw through a thread.

[0012] Preferably, a threaded sleeve is rotatably connected to the top of the movable ring, a screw is threadedly connected to the inside of the threaded sleeve, and the screw is fixedly installed on the bottom end of the outer side of the air guide cover.

[0013] The beneficial effects of the present invention are: (1) The oil-soluble corrosion inhibitor material is layered inside and outside the reactor, and the outer layer may be used for overall stirring to ensure uniform heat transfer, while the high-speed stirring of the inner layer helps to quickly disperse and stir, which helps to accelerate the dispersion and penetration process of the corrosion inhibitor in the medium, increase the chance of contact with reactants or catalysts, and thus more effectively inhibit corrosion; (2) The strategy of internal and external stratification and stirring helps to adjust the contact degree and frequency between the corrosion inhibitor and the reactants, which may optimize the reaction process, improve the yield and efficiency, and help maximize the use effect of the corrosion inhibitor, reduce waste and improve cost-effectiveness; (3) The purpose of changing the position of the extrusion ring is achieved, and the distance between the extrusion ring and the placement ring is changed, which further adjusts the sealing between the kettle body and the kettle cover; (4) When the internal pressure of the kettle body and the kettle cover increases, the sealing of the connection between the kettle body and the kettle cover can be increased to prevent gas leakage at the connection between the kettle body and the kettle cover, further increasing the safety problem after the kettle body and the kettle cover are connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The structure schematic diagram of a blending reactor for preparing an oil-soluble corrosion inhibitor in Example 1 is shown; Figure 2 Shown is a cross-sectional view of the kettle body in Example 1; Figure 3 The figure shows the installation structure diagram of the kettle cover in Example 1; Figure 4 The figure shows the installation structure diagram of the stirring structure in Example 1; Figure 5 Shown is a cross-sectional view of the stirring structure in Example 1; Figure 6 The figure shows the installation structure diagram of the limit plate in Example 1. Figure 7 The figure shows a schematic diagram of the installation structure of the driven gear in the embodiment 1; Figure 8 The figure shows the installation structure diagram of the tilt ring in Example 1. Fig. 9 What is shown is a schematic structural diagram of the pneumatic sealing structure in Example 1; Fig.10 Shown is a cross-sectional view of the pneumatic sealing structure in Example 1; Fig.11 What is shown is a schematic diagram of the installation structure of the installation bar in Example 1.

[0015] In the figure: 1. kettle body; 2. kettle cover; 3. stirring structure; 31. stirring motor; 32. stirring column; 33. stirring element; 34. stirring rod; 35. round rod; 36. first gear; 37. serrated ring; 38. barrier plate; 39. limit plate; 310. second gear; 311. driven gear; 312. stirring blade; 313. arc blade; 314. protective cover; 315. driving rod; 316. tilting ring; 317. screening barrel; 318. spring telescopic rod; 4. pneumatic sealing structure; 41. positioning ring; 42. guide cover; 43. spring; 44. piston rod; 45. extrusion ring; 46. air bag; 47. moving ring; 48. mounting strip; 49. moving strip; 410. screw; 411. lead screw; 412. threaded sleeve; 413. placement ring. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Example

[0017] The present invention provides a mixing reactor for preparing an oil-soluble corrosion inhibitor, such as Figures 1 to 11 As shown, it comprises: a kettle body 1 and a kettle cover 2; a stirring structure 3 is fixedly installed on the top of the kettle cover 2, the stirring structure 3 comprises a stirring motor 31 fixedly installed on the top of the kettle cover 2, the output shaft of the stirring motor 31 is installed with a stirring column 32 through a coupling, a stirring member 33 is welded at the bottom end of the stirring column 32, stirring rods 34 are equidistantly welded on the outside of the stirring member 33, round rods 35 are equidistantly rotatably connected inside the stirring member 33, stirring blades 312 are rotatably connected between the bottom ends of the round rods 35, and arc-shaped blades 313 are rotatably connected to the bottom ends of the stirring blades 312, and the arc-shaped blades 313 are fixedly installed inside the stirring member 33.

[0018] like Figure 4 , Figure 5 and Figure 7 As shown, a first gear 36 is welded to the top of the round rod 35, and a plurality of first gears 36 are meshedly connected with a serrated ring 37 on the outside, and the serrated ring 37 is fixedly installed on the bottom end of the inner wall of the kettle cover 2. A blocking plate 38 is clamped and installed at the bottom end of the serrated ring 37 on the outside of the plurality of round rods 35, and the blocking plate 38 is rotatably connected to the bottom end of the serrated ring 37. A second gear 310 is welded to the bottom end of the plurality of round rods 35, and a plurality of second gears 310 are meshedly connected with a driven gear 311 on the outside, and the driven gear 311 is fixedly installed on the top end of the stirring blade 312. A protective cover 314 is sleeved on the outside of the plurality of round rods 35 at the outside of the second gear 310 and the driven gear 311, which is used to drive the stirring blade 312 to rotate and make the rotation speed of the stirring blade 312 and the stirring member 33 different, so that the material on the outside of the kettle body 1 is slowly stirred, so that the material is evenly heat transferred in the outer layer and quickly dispersed and stirred inside the inner layer, so that the material is more evenly mixed in the inner layer.

[0019] like Figure 3 , Figure 4 , Figure 5 and Figure 8 As shown, a driving rod 315 is welded to the top edge of the stirring blade 312, and a tilting ring 316 is fitted and connected to the top of the outer surface of the driving rod 315. A screening barrel 317 is installed at the top height of the tilting ring 316, and a spring telescopic rod 318 is installed at the top of the screening barrel 317, which can be used to drive the screening barrel 317 to move up and down, so that the liquid flows outward along different positions inside the stirring member 33, so that the materials inside and outside are circulated, thereby reducing the blind spots of raw material mixing and improving uniformity.

[0020] like Figure 4 and Figure 5 As shown, a limit plate 39 is clamped and installed at the top of the spring telescopic rod 318, and the round rod 35 is rotatably connected to the inside of the limit plate 39. The limit plate 39 is welded to the inside of the stirring member 33 and can be used to fix the spring telescopic rod 318, thereby changing the difficulty of fixing the spring telescopic rod 318.

[0021] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, circular holes are equidistantly provided on the outside of the stirring member 33 and the screening barrel 317, and the ratio of the number of circular holes of the stirring member 33 and the screening barrel 317 is two to one, which is used to change the exchange area of ​​the stirring material to prevent excessive exchange of materials in the same area from affecting the stirring and mixing effect.

[0022] like Figure 2 , Fig. 9 , Fig.10 As shown, a pneumatic sealing structure 4 is installed inside the kettle cover 2, and the pneumatic sealing structure 4 includes a positioning ring 41 fixedly installed on the edge of the inner wall of the kettle cover 2, a guide cover 42 is fixedly installed on the bottom end of the positioning ring 41, a piston rod 44 is slidably connected inside the guide cover 42, an extrusion ring 45 is welded to the bottom end of the piston rod 44, an air bag 46 is bonded to the bottom end of the extrusion ring 45, a placement ring 413 is fixedly sleeved on the outer side of the extrusion ring 45, and the placement ring 413 is fixedly installed on the inner wall of the kettle body 1, which can increase the sealing between the kettle cover 2 and the kettle body 1 when the gas pressure inside the kettle body 1 increases, and prevent the gas pressure inside the kettle body 1 from increasing, which may cause gas leakage at the connection between the kettle cover 2 and the kettle body 1.

[0023] like Fig. 9 , Fig.10 , Fig.11 As shown, a spring 43 is welded at the top position of the piston rod 44 inside the air deflector 42, and the top of the spring 43 is fixedly installed on the bottom end of the inner wall of the air deflector 42, and a moving ring 47 is slidably connected to the outside of the air deflector 42 up and down, and a mounting bar 48 is fixedly installed on the top of the moving ring 47, and a moving bar 49 is slidably connected to the outside of the mounting bar 48, and the top of the mounting bar 48 is located at the top position of the moving bar 49 and is connected to a screw 410 through a thread, which can facilitate the clamping of the spring 43 at different positions, thereby changing the pressing force of the spring 43, and then changing the moving distance of the extrusion ring 45, and the top of the moving ring 47 is rotatably connected to a threaded sleeve 412, and a screw rod 411 is threadedly connected inside the threaded sleeve 412 and the screw rod 411 is fixedly installed on the bottom end of the outer side of the air deflector 42, which can facilitate the fixation of the moving ring 47 and change the difficulty of fixing the moving ring 47.

[0024] Working principle: During the actual use of the device, a person will pull the moving bar 49, and the moving bar 49 will move along the outside of the installation bar 48, thereby entering the inside of the spring 43, and then fix it with the screw 410. Then, the person will rotate the threaded sleeve 412, and the threaded sleeve 412 will move along the outside of the screw rod 411, and at the same time drive the moving ring 47 to move. When the moving ring 47 moves, it drives the moving bar 49 to move, and when the moving bar 49 moves, it drives the pressing part of the spring 43 to drop, thereby achieving the purpose of changing the position of the extrusion ring 45, and changing the distance between the extrusion ring 45 and the placement ring 413, further adjusting the sealing between the kettle body 1 and the kettle cover 2; Then, when the pressure inside the kettle body 1 and the kettle cover 2 increases, the gas pressure drives the piston rod 44 to move, and the piston rod 44 moves to drive the spring 43 to stretch, and the extrusion ring 45 moves in a synchronous process, and the extrusion ring 45 increases the extrusion force on the placement ring 413 when it moves, so that the airbag 46 is compressed and fills the gap between the extrusion ring 45 and the placement ring 413. In the process of increasing the pressure inside the kettle body 1 and the kettle cover 2, the sealing of the connection between the kettle body 1 and the kettle cover 2 can be increased to prevent gas leakage at the connection between the kettle body 1 and the kettle cover 2, further increasing the safety problem after the kettle body 1 and the kettle cover 2 are connected; Then, the stirring structure 3 is started, and the stirring motor 31 in the stirring structure 3 drives the stirring column 32 to rotate. When the stirring column 32 rotates, it drives the stirring member 33 to rotate. When the stirring member 33 rotates, it drives the stirring rod 34 to rotate. When the stirring rod 34 rotates, the material inside the kettle body 1 located outside the stirring member 33 is stirred, so that the outside material is used to exchange heat with the heat inside the kettle body 1, thereby ensuring that the heat inside the kettle body 1 is evenly transferred to the surface of the material; At the same time, when the outer material is being stirred, the stirring member 33 drives the stirring blade 312 to rotate. When the stirring blade 312 rotates, the outer material enters the stirring member 33. At the same time, the round rod 35 is driven to rotate during the rotation. When the round rod 35 rotates, the tooth pattern meshing connection between the first gear 36 and the sawtooth ring 37 causes the round rod 35 to rotate. When the round rod 35 rotates, it drives the second gear 310 to rotate. When the second gear 310 rotates, it drives the stirring blade 312 to rotate rapidly inside the stirring member 33 through the driven gear 311. The high-speed stirring of the inner layer helps to quickly disperse and stir, forming a more uniform mixture. In this process, the driving rod 315 drives the screening barrel 317 to move up and down. When the screening barrel 317 moves up and down, it drives the spring telescopic rod 318 to be compressed up and down. In this process, the stirred and mixed raw materials enter the outer material at different heights to prevent the material flow areas from belonging to the same position and causing the material to have a blind spot of confusion.

[0025] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A blending reactor for preparing an oil-soluble corrosion inhibitor, characterized in that: include: A kettle body (1) and a kettle cover (2); A stirring structure (3) is fixedly mounted on the top of the kettle cover (2), the stirring structure (3) comprising a stirring motor (31) fixedly mounted on the top of the kettle cover (2), the output shaft of the stirring motor (31) being mounted with a stirring column (32) via a coupling, a stirring member (33) being welded to the bottom end of the stirring column (32), stirring rods (34) being welded equidistantly on the outside of the stirring member (33), round rods (35) being rotatably connected to the inside of the stirring member (33), stirring blades (312) being rotatably connected between the bottom ends of a plurality of the round rods (35), arc-shaped blades (313) being rotatably connected to the bottom ends of the stirring blades (312), and the arc-shaped blades (313) being fixedly mounted inside the stirring member (33).

2. The blending reactor for preparing an oil-soluble corrosion inhibitor according to claim 1, characterized in that: A first gear (36) is welded to the top of the round rod (35), a plurality of the first gears (36) are meshingly connected to the outside of a plurality of the first gears (36) with a sawtooth ring (37), and the sawtooth ring (37) is fixedly mounted on the bottom end of the inner wall of the kettle cover (2), and a plurality of blocking discs (38) are clamped and mounted on the outside of the round rods (35) at the bottom end of the sawtooth ring (37), and the blocking discs (38) are rotatably connected to the bottom end of the sawtooth ring (37).

3. The blending reactor for preparing an oil-soluble corrosion inhibitor according to claim 2, characterized in that: A second gear (310) is welded to the bottom end of each of the round rods (35); a driven gear (311) is meshedly connected to the outside of each of the second gears (310); the driven gear (311) is fixedly mounted on the top of the stirring blade (312); and a protective cover (314) is sleeved on the outside of each of the round rods (35) at a position outside the second gear (310) and the driven gear (311).

4. The blending reactor for preparing an oil-soluble corrosion inhibitor according to claim 2, characterized in that: A driving rod (315) is welded to the top edge of the stirring blade (312); a tilting ring (316) is fitted and connected to the top of the outer surface of the driving rod (315); a screening barrel (317) is installed at the top height of the tilting ring (316); and a spring telescopic rod (318) is clamped and installed at the top of the screening barrel (317).

5. The blending reactor for preparing an oil-soluble corrosion inhibitor according to claim 4, characterized in that: The top end of the spring telescopic rod (318) is clamped and mounted with a limit plate (39), the round rod (35) is rotatably connected to the inside of the limit plate (39), and the limit plate (39) is welded to the inside of the stirring member (33).

6. The blending reactor for preparing an oil-soluble corrosion inhibitor according to claim 2, characterized in that: The outer sides of the stirring member (33) and the screening barrel (317) are both provided with circular holes at equal distances, and the ratio of the number of circular holes in the stirring member (33) to that in the screening barrel (317) is two to one.

7. The blending reactor for preparing an oil-soluble corrosion inhibitor according to claim 1, characterized in that: A pneumatic sealing structure (4) is installed inside the kettle cover (2), and the pneumatic sealing structure (4) comprises a positioning ring (41) fixedly installed on the edge of the inner wall of the kettle cover (2), a flow guide cover (42) fixedly installed on the bottom end of the positioning ring (41), a piston rod (44) slidably connected inside the flow guide cover (42), an extrusion ring (45) welded to the bottom end of the piston rod (44), an air bag (46) bonded to the bottom end of the extrusion ring (45), a placement ring (413) fixedly sleeved on the outside of the extrusion ring (45), and the placement ring (413) fixedly installed on the inner wall of the kettle body (1).

8. The blending reactor for preparing an oil-soluble corrosion inhibitor according to claim 7, characterized in that: A spring (43) is welded inside the air deflector (42) at the top position of the piston rod (44), and the top end of the spring (43) is fixedly mounted on the bottom end of the inner wall of the air deflector (42). A moving ring (47) is slidably connected to the outside of the air deflector (42), a mounting bar (48) is fixedly mounted on the top end of the moving ring (47), a moving bar (49) is slidably connected to the outside of the mounting bar (48), and a screw rod (410) is threadedly connected to the top position of the moving bar (49).

9. The blending reactor for preparing an oil-soluble corrosion inhibitor according to claim 8, characterized in that: The top end of the movable ring (47) is rotatably connected to a threaded sleeve (412), the interior of the threaded sleeve (412) is connected to a screw rod (411) via a thread, and the screw rod (411) is fixedly mounted on the bottom end of the outer side of the air guide cover (42).

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