Mixer for oil refining hydrogenation device

Abstract

The invention provides a mixer for an oil refining hydrogenation device. The mixer comprises a gear motor; the driving gear box is connected to the gear motor; the first driven gear box is connected with the driving gear box through a first driven shaft, and the second driven gear box is connected with the driving gear box through a second driven shaft; the driving gear box is connected with and drives a first stirring frame in the first mixing tank, the first driven gear box is connected with and drives a second stirring frame in the second mixing tank, and the second driven gear box is connected with and drives a third stirring frame in the third mixing tank; wherein the first stirring frame, the second stirring frame and the third stirring frame are different in structure. According to the mixer for the oil refining hydrogenation device, the stirring frames of the three mixing tanks are simultaneously driven by one motor, so that the cost of equipment is reduced, the production efficiency is also improved, and the production requirements are met.

Description

Technical Field

[0001] The invention relates to the technical field of mixers, in particular to a mixer used in an oil refining hydrogenation device. Background Art

[0002] Mixing equipment is a mechanical device that uses mechanical force and gravity to evenly mix two or more materials. During the mixing process, it can also increase the contact surface area of ​​the materials to promote chemical reactions and accelerate physical changes. Commonly used mixing equipment is divided into four categories: gas mixing equipment, low-viscosity liquid mixing equipment, medium- and high-viscosity liquid and paste mixing equipment, and powdered and granular solid material mixing equipment.

[0003] The mixing equipment in the prior art are as follows: For example, Chinese patent CN202020980363.7 discloses a combined mixing equipment for preparing herbicides, including a first reactor, a second reactor, a third reactor, a driving gear box, a first driven gear box, a second driven gear box and a reduction motor; a driving bevel gear is installed in the driving gear box, and the driving bevel gear is meshed with the first driven bevel gear and the second driven bevel gear on both sides, the third driven bevel gear is located in the first driven gear box, and the third driven bevel gear is meshed with the fourth driven bevel gear; the fifth driven bevel gear is located in the second driven gear box, and the fifth driven bevel gear is meshed with the sixth driven bevel gear; the bottom end of the driving shaft is connected to a stirring frame in the first reactor; the first driven output shaft is connected to a stirring frame in the second reactor; the second driven output shaft is connected to a stirring frame in the third reactor.

[0004] For example, Chinese patent CN107376696A discloses an all-round multifunctional mixing device, wherein inspection doors are provided on both sides of the mixing device body, a latch is provided below the inspection door, a locking device is provided between the upper side of the inspection door and the mixing device body, and a travel switch is also provided on the inspection door; a feed port is provided above the mixing device body, a discharge door body is provided below the mixing device body, support bearings are provided on both sides of the mixing device body, and a rotor is provided between the support bearings on both sides; a driving device is provided in combination with the support bearings on either side, and the driving device is provided in combination with the rotor; an auxiliary mixing device is provided between the middle and the lower side of the mixing device body, the auxiliary mixing device is arranged at intervals laterally, a support frame is provided below the mixing device body, and the support frame is provided on both sides of the mixing device body.

[0005] For example, Chinese patent CN111361037A discloses a twin-body energy-saving material mixer, comprising: a support drive assembly, which is composed of a support frame and a drive motor arranged on the support frame; at least one group of cylinder assemblies, which includes a first cylinder and a second cylinder that are cross-connected, and the outer wall of the first cylinder is fixedly provided with a flip gear, and the first cylinder and the second cylinder are respectively movably mounted on the support frame through connecting shafts arranged on their outer walls; wherein the drive motor is meshedly connected with the flip gear to drive the first cylinder and the second cylinder to synchronously spin and flip on the support frame.

[0006] In summary, the mixer is the main mixing equipment of the oil refining and hydrogenation unit. The existing mixers are all single-tank mixers, that is, one motor drives the stirring and mixing frame of a mixing tank. Although the existing equipment can realize that one motor drives the stirring frames of multiple reaction tanks at the same time, the structures of the agitators of multiple reactors are basically the same, which is only suitable for mixing a certain material, and cannot mix three materials at the same time, and cannot meet production needs. Summary of the invention

[0007] In view of the above-mentioned deficiencies in the prior art, the present invention provides a mixer for an oil refining hydrogenation unit, which reduces the cost of the equipment, improves production efficiency, and meets production needs.

[0008] In order to achieve the above object, the present invention provides a mixer for an oil refining hydrogenation unit, comprising:

[0009] Gear motor;

[0010] A driving gear box connected to the reduction motor;

[0011] a first driven gearbox and a second driven gearbox, wherein the first driven gearbox is connected to the driving gearbox via a first driven shaft, and the second driven gearbox is connected to the driving gearbox via a second driven shaft;

[0012] The driving gearbox is connected to drive the first stirring frame in the first mixing tank, the first driven gearbox is connected to drive the second stirring frame in the second mixing tank, and the second driven gearbox is connected to drive the third stirring frame in the third mixing tank;

[0013] The first stirring frame, the second stirring frame and the third stirring frame have different structures.

[0014] In some embodiments, the driving gearbox includes a driving bevel gear, and a first driven bevel gear and a second driven bevel gear meshing with the driving bevel gear; the first driven gearbox includes a third driven bevel gear and a fourth driven bevel gear meshing with each other; and the second driven gearbox includes a fifth driven bevel gear and a sixth driven bevel gear meshing with each other.

[0015] In some embodiments, the driving bevel gear is mounted on a driving shaft; the first driven bevel gear and the second driven bevel gear are meshed on both sides of the driving bevel gear.

[0016] In some embodiments, the first driven bevel gear is mounted on one end of the first driven shaft, a third driven bevel gear is mounted on the other end of the first driven shaft, the third driven bevel gear is meshed with the fourth driven bevel gear, and the fourth driven bevel gear is mounted on a first driven output shaft.

[0017] In some embodiments, the second driven bevel gear is mounted on one end of the second driven shaft, a fifth driven bevel gear is mounted on the other end of the second driven shaft, the fifth driven bevel gear is meshed with a sixth driven bevel gear, and the sixth driven bevel gear is mounted on a second driven output shaft.

[0018] In some embodiments, the output shaft of the reduction motor is connected to the top end of the drive shaft, the bottom end of the drive shaft is connected to the first stirring frame in the first mixing tank, the first driven output shaft is connected to the second stirring frame in the second mixing tank, and the second driven output shaft is connected to the third stirring frame in the third mixing tank.

[0019] In some embodiments, the first stirring frame comprises a stirring rod, two symmetrical bottom arc stirring blades, two symmetrical middle arc stirring blades and two symmetrical top arc stirring blades; the bottom arc stirring blades, the middle arc stirring blades and the top arc stirring blades are respectively welded to the stirring rod through a support plate and a rib plate;

[0020] Symmetrically distributed liquid separation plates are welded on the bottom circular arc stirring blade, the middle circular arc stirring blade and the top circular arc stirring blade.

[0021] In some embodiments, the distance between the bottom arc stirring blade and the stirring rod is smaller than the distance between the middle arc stirring blade and the stirring rod, and the distance between the middle arc stirring blade and the stirring rod is smaller than the distance between the top arc stirring blade and the stirring rod.

[0022] In some embodiments, the second stirring frame includes a spiral stirring shaft, a variable pitch spiral blade welded on the spiral stirring shaft, and a symmetrically distributed L-shaped stirring rod, and the pitch of the upper blade of the variable pitch spiral blade is smaller than the pitch of the lower spiral blade.

[0023] In some embodiments, the third stirring frame includes a stirring rod shaft, two inner stirring cages and two outer stirring cages, the two inner stirring cages and the two outer stirring cages are symmetrically welded on the stirring rod shaft, the inner stirring cages and the outer stirring cages are perpendicular to each other, and a number of inclined stirring blades are welded in the frames of the inner stirring cages and the outer stirring cages.

[0024] Compared with the prior art, the present invention has the following advantages:

[0025] The mixer for an oil refining hydrogenation device provided by the present invention drives stirring racks of three mixing tanks simultaneously through one motor, which not only reduces the cost of the equipment, but also improves the production efficiency and meets the production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 This is a schematic structural diagram of a mixer for an oil refining hydrogenation unit according to an embodiment of the present invention;

[0028] Figure 2 It is a transmission schematic diagram of a driving gear box shown in an embodiment of the present invention;

[0029] Figure 3 It is a schematic diagram of the front view structure of the first stirring frame shown in an embodiment of the present invention;

[0030] Figure 4 It is a schematic diagram of the top view of the structure of the first stirring frame shown in an embodiment of the present invention;

[0031] Figure 5 It is a structural schematic diagram of a second stirring frame shown in an embodiment of the present invention;

[0032] Figure 6 It is a schematic structural diagram of a third stirring frame shown in an embodiment of the present invention;

[0033] in:

[0034] 1- reduction motor;

[0035] 2- driving gear box;

[0036] 21-driving bevel gear;

[0037] 22-first driven bevel gear;

[0038] 23- second driven bevel gear;

[0039] 24- driving shaft;

[0040] 3-First driven gearbox;

[0041] 31- the third driven bevel gear;

[0042] 32- fourth driven bevel gear;

[0043] 33- first driven output shaft;

[0044] 4- Second driven gearbox;

[0045] 41-fifth driven bevel gear;

[0046] 42-sixth driven bevel gear;

[0047] 43- second driven output shaft;

[0048] 5- first driven shaft;

[0049] 6- Second driven shaft;

[0050] 7- first mixing tank;

[0051] 71-first stirring frame; 711-stirring rod; 712-bottom arc stirring blade; 713-middle arc stirring blade; 714-top arc stirring blade; 715-support plate; 716-rib plate; 717-liquid separation plate;

[0052] 8- second mixing tank;

[0053] 81-second stirring frame; 811-spiral stirring shaft; 812-variable pitch spiral blade; 813-L-shaped stirring rod;

[0054] 9- third mixing tank;

[0055] 91-third stirring frame; 911-stirring rod shaft, 912-inner stirring cage; 913-outer stirring cage, 914-stirring blades; 915-supporting ribs;

[0056] 101-motor support frame;

[0057] 201-Support frame. DETAILED DESCRIPTION

[0058] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of the present invention, but it is not intended to limit the scope of protection of the claims attached to the present invention.

[0059] Certain words are used in the specification and subsequent claims to refer to specific components or parts. It should be understood by those of ordinary skill in the art that technical users or manufacturers may refer to the same component or part by different nouns or terms. This specification and subsequent claims do not use differences in names as a way to distinguish components or parts, but use differences in the functions of components or parts as the criteria for distinction. "Including" and "comprising" mentioned throughout the specification and subsequent claims are open-ended terms and should be interpreted as "including but not limited to". In addition, the word "connect" here includes any direct and indirect electrical connection means. Indirect electrical connection means include connection through other devices.

[0060] It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and "about", or "approximately", "substantially", "left and right" and the like indicating directions or positional relationships or parameters are all based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description content, and do not indicate or imply that the referred device or element must have a specific direction, specific size, or be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0061] An embodiment of the present invention provides a mixer for a refinery hydrogenation device, comprising: a reduction motor 1; a driving gearbox 2, connected to the reduction motor 1; a first driven gearbox 3 and a second driven gearbox 4, wherein the first driven gearbox 3 is connected to the driving gearbox 2 through a first driven shaft 5, and the second driven gearbox 4 is connected to the driving gearbox 2 through a second driven shaft 6; the driving gearbox 2 is connected to drive a first stirring frame 71 in a first mixing tank 7, the first driven gearbox 3 is connected to drive a second stirring frame 81 in a second mixing tank 8, and the second driven gearbox 4 is connected to drive a third stirring frame 91 in a third mixing tank 9; wherein the structures of the first stirring frame 71, the second stirring frame 81 and the third stirring frame 91 are different. In this embodiment, the reduction motor 1 is mounted and fixed on a motor support frame 101, and the motor support frame 101 is welded to the tank body of the first mixing tank 7; the driving gearbox 2, the first driven gearbox 3 and the second driven gearbox 4 are respectively welded to the tank body of the second mixing tank 8 and the tank body of the third mixing tank 9 through a support frame 201. The driving gearbox 2, the first driven gearbox 3 and the second driven gearbox 4 are box-type gearboxes.

[0062] The driving gearbox 2 includes a driving bevel gear 21, and a first driven bevel gear 22 and a second driven bevel gear 23 meshing with the driving bevel gear 21; the first driven gearbox 3 includes a third driven bevel gear 31 and a fourth driven bevel gear 32 meshing with each other; the second driven gearbox 4 includes a fifth driven bevel gear 41 and a sixth driven bevel gear 42 meshing with each other.

[0063] The driving bevel gear 21 is mounted on a driving shaft 24 ; the first driven bevel gear 22 and the second driven bevel gear 23 are meshed on both sides of the driving bevel gear 21 .

[0064] Furthermore, the first driven bevel gear 22 is mounted on one end of the first driven shaft 5 , and the other end of the first driven shaft 5 is mounted with a third driven bevel gear 31 , the third driven bevel gear 31 is meshed with the fourth driven bevel gear 32 , and the fourth driven bevel gear 32 is mounted on a first driven output shaft 33 .

[0065] Furthermore, the second driven bevel gear 23 is mounted on one end of the second driven shaft 6 , and a fifth driven bevel gear 41 is mounted on the other end of the second driven shaft 6 . The fifth driven bevel gear 41 is meshed with a sixth driven bevel gear 42 , and the sixth driven bevel gear 42 is mounted on a second driven output shaft 43 .

[0066] Among them, the output shaft of the reduction motor 1 is connected to the top end of the drive shaft 24, the bottom end of the drive shaft 24 is connected to the first stirring frame 71 in the first mixing tank 7, the first driven output shaft 33 is connected to the second stirring frame 81 in the second mixing tank 8, and the second driven output shaft 43 is connected to the third stirring frame 91 in the third mixing tank 9.

[0067] In this embodiment, the first stirring frame 71 includes a stirring rod 711, two symmetrical bottom arc stirring blades 712, two symmetrical middle arc stirring blades 713 and two symmetrical top arc stirring blades 714; the bottom arc stirring blades 712, the middle arc stirring blades 713 and the top arc stirring blades 714 are respectively welded to the stirring rod 711 through a support plate 715 and a rib plate 716; the bottom arc stirring blades 712, the middle arc stirring blades 713 and the top arc stirring blades 714 are welded with symmetrically distributed liquid separation plates 717.

[0068] Among them, the distance between the bottom arc stirring blade 712 and the stirring rod 711 is smaller than the distance between the middle arc stirring blade 713 and the stirring rod 711, and the distance between the middle arc stirring blade 713 and the stirring rod 711 is smaller than the distance between the top arc stirring blade 714 and the stirring rod 711.

[0069] In the present embodiment, the symmetrically distributed arc stirring blades on the first stirring frame are the two end arcs of a circle, which can reduce the stirring resistance during rotation. The symmetrically distributed liquid separation plates are welded on the arc blades, which can improve the mixing effect during rotation stirring on the one hand, and on the other hand, the two wedge-shaped liquid separation plates can reduce the stirring resistance and reduce the motor power; and in the present embodiment, the diameters of the circles where the upper, middle and lower three groups of arc stirring blades are located are different, which further improves the stirring and mixing effect.

[0070] In this embodiment, the second stirring frame 81 includes a spiral stirring shaft 811, a variable pitch spiral blade 812 welded on the spiral stirring shaft 811, and a symmetrically distributed L-shaped stirring rod 813, wherein the pitch of the upper blade of the variable pitch spiral blade 812 is smaller than the pitch of the lower spiral blade. The variable pitch spiral stirring rod of the second stirring frame has different pitches, so that the two parts of liquid in the kettle rise at different speeds, and the two parts of liquid with different rising speeds will collide, thereby improving the quality and efficiency of mixing and stirring.

[0071] The third stirring frame 91 in this embodiment includes a stirring rod shaft 911, two inner stirring cages 912 and two outer stirring cages 913, the two inner stirring cages 912 and the two outer stirring cages 913 are symmetrically welded on the stirring rod shaft 911, the inner stirring cages 912 and the outer stirring cages 913 are perpendicular to each other, and a plurality of inclined stirring blades 914 are welded in the frames of the inner stirring cages 912 and the outer stirring cages 913. Inclined stirring blades 914 are welded in the frames of the inner stirring cages 912 and the outer stirring cages 913 perpendicular to each other on the third stirring frame 91, so that the stirring frame stirs the fermented materials more evenly when rotating, and improves the quality of stirring and mixing compared with the U-shaped stirring frame.

[0072] In this embodiment, the inclination directions of the two adjacent stirring blades 914 on the inner stirring cage are opposite; the inclination directions of the two adjacent stirring blades 914 on the outer stirring cage are opposite; a supporting rib 915 is welded between the outer stirring cage 913 and the stirring rod shaft 911; in this embodiment, a rubber scraper is also provided in the third mixing tank, and the outer end of the rubber scraper is in contact with the inner wall of the mixing tank body; the number of the rubber scraper is three, and the thickness of each scraper is not less than 5 mm. During the stirring process, the rubber scraper fixed on the scraper can remove the material stuck on the tank wall, further improving the stirring and mixing effect. The rubber scraper is detachably mounted on the scraper by screws for easy replacement.

[0073] When liquids are mixed using the mixer for an oil refining hydrogenation unit provided by an embodiment of the present invention, the reduction motor 1 is started, and the reduction motor 1 drives the driving bevel gear 21 of the driving gear box 2, and the driving bevel gear 21 drives the first driven bevel gear 22 and the second driven bevel gear 23 on both sides to rotate. At this time, the driving shaft 24 drives the first stirring frame 71 in the first mixing tank 7 to rotate, the first driven bevel gear 22 drives the third driven bevel gear 31 through the first driven shaft 5, the third driven bevel gear 31 drives the fourth driven bevel gear 32, and the fourth driven bevel gear 32 drives the first driven output shaft 33 in the first driven gear box 3 to drive the second stirring frame 81 in the second mixing tank 8 to rotate, the second driven bevel gear 23 drives the fifth driven bevel gear 41 to rotate through the second driven shaft 6, the fifth driven bevel gear 41 drives the sixth driven bevel gear 42, and the sixth driven bevel gear 42 drives the second driven output shaft 43 in the second driven gear box 4 to drive the third stirring frame 91 in the third mixing tank 9 to rotate.

[0074] The mixer for the oil refining hydrogenation unit provided in this embodiment drives the stirring frames of three mixing tanks simultaneously by one motor, which not only reduces the cost of the equipment, but also improves the production efficiency and meets the production needs.

[0075] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A mixer for an oil refining hydrogenation unit, characterized in that: include: Gear motor; A driving gear box connected to the reduction motor; a first driven gearbox and a second driven gearbox, wherein the first driven gearbox is connected to the driving gearbox via a first driven shaft, and the second driven gearbox is connected to the driving gearbox via a second driven shaft; The driving gearbox is connected to drive the first stirring frame in the first mixing tank, the first driven gearbox is connected to drive the second stirring frame in the second mixing tank, and the second driven gearbox is connected to drive the third stirring frame in the third mixing tank; The first stirring frame, the second stirring frame and the third stirring frame have different structures.

2. The mixer for a refinery hydrogenation unit according to claim 1, characterized in that: The driving gearbox includes a driving bevel gear, and a first driven bevel gear and a second driven bevel gear meshing with the driving bevel gear; the first driven gearbox includes a third driven bevel gear and a fourth driven bevel gear meshing with each other; the second driven gearbox includes a fifth driven bevel gear and a sixth driven bevel gear meshing with each other.

3. The mixer for a refinery hydrogenation unit according to claim 2, characterized in that: The driving bevel gear is installed on a driving shaft; the first driven bevel gear and the second driven bevel gear are meshed on both sides of the driving bevel gear.

4. The mixer for a refinery hydrogenation unit according to claim 3, characterized in that: The first driven bevel gear is mounted on one end of the first driven shaft, the other end of the first driven shaft is mounted with a third driven bevel gear, the third driven bevel gear is meshed with the fourth driven bevel gear, and the fourth driven bevel gear is mounted on a first driven output shaft.

5. The mixer for a refinery hydrogenation unit according to claim 4, characterized in that: The second driven bevel gear is installed on one end of the second driven shaft, the other end of the second driven shaft is installed with a fifth driven bevel gear, the fifth driven bevel gear is meshed with the sixth driven bevel gear, and the sixth driven bevel gear is installed on a second driven output shaft.

6. The mixer for a refinery hydrogenation unit according to claim 5, characterized in that: The output shaft of the reduction motor is connected to the top end of the drive shaft, the bottom end of the drive shaft is connected to the first stirring frame in the first mixing tank, the first driven output shaft is connected to the second stirring frame in the second mixing tank, and the second driven output shaft is connected to the third stirring frame in the third mixing tank.

7. The mixer for a refinery hydrogenation unit according to claim 1, characterized in that: The first stirring frame comprises a stirring rod, two symmetrical bottom arc stirring blades, two symmetrical middle arc stirring blades and two symmetrical top arc stirring blades; The bottom arc stirring blade, the middle arc stirring blade and the top arc stirring blade are respectively welded on the stirring rod through the support plate and the rib plate; Symmetrically distributed liquid separation plates are welded on the bottom circular arc stirring blade, the middle circular arc stirring blade and the top circular arc stirring blade.

8. The mixer for a refinery hydrogenation unit according to claim 1, characterized in that: The distance between the bottom arc stirring blade and the stirring rod is smaller than the distance between the middle arc stirring blade and the stirring rod, and the distance between the middle arc stirring blade and the stirring rod is smaller than the distance between the top arc stirring blade and the stirring rod.

9. The mixer for a refinery hydrogenation unit according to claim 1, characterized in that: The second stirring frame comprises a spiral stirring shaft, on which variable pitch spiral blades and symmetrically distributed L-shaped stirring rods are welded, and the pitch of the upper blade of the variable pitch spiral blade is smaller than the pitch of the lower spiral blade.

10. The mixer for a refinery hydrogenation unit according to claim 1, characterized in that: The third stirring frame includes a stirring rod shaft, two inner stirring cages and two outer stirring cages. The two inner stirring cages and the two outer stirring cages are symmetrically welded on the stirring rod shaft. The inner stirring cages and the outer stirring cages are perpendicular to each other. A plurality of inclined stirring blades are welded in the frames of the inner stirring cages and the outer stirring cages.

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