Turbulent structure of reactor

Abstract

Disclosed is a turbulent structure of a reactor, the turbulent structure comprising a reactor body (1), a main shaft (2), and a drive assembly (5), wherein the main shaft (2) is rotatably connected to the reactor body (1) and is provided with a shaft rod (201) transversely extending at a bottom end thereof, a transmission member (3) is arranged between the shaft rod (201) and the interior of the main shaft (2), a propeller-type agitator (4) is provided at an output end of the transmission member (3) to drive the propeller-type agitator (4) to rotate, the propeller-type agitator (4) rotates eccentrically around the central axis of the main shaft (2), and the propeller-type agitator (4) is used for propelling fluid upward. The main shaft (2) and the shaft rod (201) drive the propeller-type agitator (4) to perform a circular motion around the axis of the main shaft (2), expanding the area for upward agitation at the bottom, thereby creating a fluid motion inside the reactor body (1) with upward floating on one side and gradual sinking on the other side, resulting in a differential speed between the two sides of the reactor body (1). During rotation, when a blade moves into the differential region of sinking, the upward-floating fluid collides with the sinking fluid, resulting in turbulence.

Description

Turbulent flow structure of a reactor Technical Field

[0001] The invention relates to the technical field of reactor material stirring, in particular to a turbulent flow structure of a reactor. Background Art

[0002] With the booming development of my country's new energy vehicle industry and the gradual depletion of high-quality nickel and cobalt ore resources, the industry's demand for Ni, Co, and Mn metals in new energy ternary materials is increasing. The development of laterite nickel ore, which has large reserves but low nickel grades, has gradually become an industry hotspot. Hydrometallurgical leaching with sulfuric acid under high-temperature and high-pressure conditions is currently one of the mainstream smelting processes for laterite nickel ore. Reactors are the primary equipment for this high-temperature and high-pressure sulfuric acid leaching process.

[0003] In the reactor, slurry, steam and acid need to be mixed. In order to improve the turbulent mixing effect of stirring, a spoiler is installed on the inner wall of the reactor. The vortex generated by the fluid stirring collides with the spoiler, causing the reactor body to vibrate, affecting the service life of the mechanical seal and the stirring shaft. In addition, the spoiler is prone to produce a wake area, which is prone to material deposition and scaling. Therefore, how to obtain sufficient turbulent mixing effect without using a spoiler is a technical problem that needs to be solved.

[0004] Summary of the Invention

[0005] In view of this, it is necessary to provide a turbulent flow structure for a reactor to solve the technical problem in the prior art of how to obtain sufficient turbulent mixing effect without using a spoiler.

[0006] In order to achieve the above technical objectives, the technical solution of the present invention provides a turbulent flow structure of a reactor, comprising:

[0007] kettle body;

[0008] A main shaft, the main shaft is rotatably connected to the kettle body, a shaft extending laterally from the bottom end thereof, a transmission member is provided between the shaft and the interior of the main shaft, a propeller stirring paddle is provided at the output end of the transmission member, and is used to drive the propeller stirring paddle to rotate so that the propeller stirring paddle rotates eccentrically around the central axis of the main shaft, and the propeller stirring paddle is used to propel the fluid upward; and

[0009] The driving assembly is used to drive the transmission member to transmit to the propulsion stirring paddle, and drive the main shaft and the propulsion stirring paddle to perform differential rotation.

[0010] Furthermore, it also includes a dispersed disc agitator, on which a first sleeve shaft is provided, and the first sleeve shaft is sleeved on the outside of the main shaft. The drive assembly is also used to drive the first sleeve shaft and the dispersed disc agitator to rotate, wherein the dispersed disc agitator is located directly above the propulsion agitator.

[0011] Furthermore, it also includes a turbulator rod, on which a second sleeve shaft is provided, and the second sleeve shaft is sleeved on the outside of the first sleeve shaft. The drive assembly is also used to drive the second sleeve shaft and the turbulator rod to rotate, and the rotation direction is opposite to the rotation direction of the first sleeve shaft.

[0012] Furthermore, the turbulator rod includes a transversely extending horizontal rod and a vertically extending vertical rod. The horizontal rod is distributed above the dispersion disc agitator paddle, and the vertical rod is distributed on both sides of the dispersion disc paddle and extends downward.

[0013] Furthermore, the driving assembly includes four driving motors, and the four driving motors are respectively used to drive the transmission member, the main shaft, the first sleeve shaft and the second sleeve shaft.

[0014] Furthermore, an output shaft of one of the drive motors is connected to the driving end of the transmission member, and the other three drive motors are respectively connected to the main shaft, the first sleeve shaft and the second sleeve shaft through a bevel gear set.

[0015] Furthermore, the drive assembly includes two drive motors, the output shaft of one drive motor is connected to the drive end of the transmission member, and is used to drive the transmission member to its output end for output rotation, and the output shaft of the other drive motor is connected to the center shaft, one end of the center shaft drives the first sleeve shaft to rotate through a bevel gear set, and a reduction gear set is provided on the center shaft, and the output end of the reduction gear set is transmitted to the main shaft for rotation through the bevel gear set, and a reverse gear set is also provided on the center shaft, and the output end of the reverse gear set is transmitted to the second sleeve shaft for rotation through the bevel gear set.

[0016] Furthermore, the main shaft and the shaft are both hollow shafts, and the transmission member includes a first shaft, a bevel gear set, a second shaft and a third shaft, wherein the first shaft and the second shaft are respectively connected to the driving end and the output end of the bevel gear set to form the horizontal rotation of the second shaft, and the second shaft and the third shaft are respectively connected to the driving end and the output end of another bevel gear set to form the vertical rotation of the third shaft.

[0017] Furthermore, the bevel gear set includes a pair of vertically meshed bevel gears for changing the transmission direction between vertical rotation and horizontal rotation.

[0018] Furthermore, mechanical seals are provided between the third shaft and the shaft rod, between the main shaft and the first sleeve shaft, between the first sleeve shaft and the second sleeve shaft, and between the second sleeve shaft and the kettle body.

[0019] Compared with the prior art, the present invention has the following beneficial effects: the propulsion stirring paddle is driven by the main shaft and the shaft to perform circular motion around the main shaft axis, forming eccentric rotation, expanding the area of ​​floating stirring at the bottom, and forming a fluid movement in which one side floats upward and the other side gradually sinks in the kettle, forming a differential speed on both sides of the kettle. During the rotation process, the blade moves to the sinking differential speed area, and the floating fluid and the sinking fluid form a collision and turbulence, and this alternating flow causes the bottom material to float and turbulence. Therefore, in this stirring mode, it can prevent the deposition of high-density materials at the bottom, and form a certain turbulence in the kettle, thereby eliminating the need for the setting of the spoiler and reducing the vibration of the kettle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is a three-dimensional cross-sectional view of a turbulent flow structure of a reactor according to an embodiment of the present invention;

[0021] FIG2 is a three-dimensional structural diagram of the turbulent flow structure of the reactor according to an embodiment of the present invention;

[0022] FIG3 is a front view of the structure of the turbulent flow structure of the reactor according to an embodiment of the present invention;

[0023] FIG4 is a diagram showing a driving structure of a turbulent flow structure of a reactor according to an embodiment of the present invention;

[0024] In the figure: 1. Kettle body; 2. Main shaft; 201. Shaft; 3. Transmission member; 31. First shaft; 32. Second shaft; 33. Third shaft; 4. Propeller agitator; 5. Drive assembly; 51. Center shaft; 52. Bevel gear set; 53. Drive motor; 6. Dispersion disc agitator; 601. First sleeve shaft; 7. Turbulence rod; 71. Cross bar; 72. Vertical bar; 701. Second sleeve shaft; 8. Reduction gear set; 9. Reverse gear set. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, and are not used to limit the scope of the present invention.

[0026] As shown in Figures 1-4, the present invention provides a turbulent flow structure for a reactor, comprising a reactor body 1, a main shaft 2, and a drive assembly 5. To achieve eccentric rotation and displacement of the stirring paddle, the main shaft 2 is rotatably connected to the reactor body 1, with a shaft 201 extending laterally from its bottom end. The interiors of the main shaft 2 and the shaft 201 are hollow and can pass through a transmission member 3, that is, a transmission member 3 is disposed between the shaft 201 and the interior of the main shaft 2. The output end of the transmission member 3 is provided with a propulsion stirring paddle 4, which is used to drive the propulsion stirring paddle 4 to rotate, so that the propulsion stirring paddle 4 rotates eccentrically around the central axis of the main shaft 2, and the propulsion stirring paddle 4 is used to propel the fluid upward, forming a gap between the central axis of the stirring paddle rotation and the main shaft 2. The eccentric rotation increases the range of the propulsion stirring paddle 4 that can stir. Moreover, due to its deviation from the axis, the floating speed directly above the floating blade is fast, the floating speed next to the blade is slow, and the farther away it is, the sinking occurs. That is, a fluid movement in which one side floats upward and the other side gradually sinks is formed in the kettle body 1, forming a differential speed on both sides of the kettle body 1. During the rotation process, the blade moves to the sinking differential speed area, and the floating fluid and the sinking fluid collide and turbulence are formed. This flow causes the bottom material to float and turbulence. Therefore, in this stirring mode, it can prevent the deposition of high-density materials at the bottom and form a certain turbulence in the kettle body 1, thereby eliminating the need for the spoiler and reducing the vibration of the kettle body 1. In order to drive the blades, the driving component 5 is used to drive the transmission member 3 to transmit to the propulsion stirring paddle 4, and drive the main shaft 2 and the propulsion stirring paddle 4 to rotate differentially, that is, the rotation speed of the propulsion stirring paddle 4 is greater than the rotation speed of the main shaft 2, so as to slow down the speed of the propulsion stirring paddle 4 to perform circular motion around the axis, so as to provide a differential time for one side to sink and the other side to float.

[0027] In one embodiment, to provide a more comprehensive turbulent effect, the turbulent structure further includes a dispersed disc agitator 6, which is used to generate tangential fluid agitation. Dispersed disc agitator 6 is provided with a first sleeve shaft 601, which is sleeved on the outside of the main shaft 2 to form a coaxial structure with the main shaft 2, thereby eliminating the need for additional shaft holes. Furthermore, the drive assembly 5 is further configured to drive the first sleeve shaft 601 and dispersed disc agitator 6 to rotate. The dispersed disc agitator 6 is located directly above the propulsion agitator 4, so that when the propulsion agitator 4 floats the material upward, it tangentially agitates the floating material, creating a more comprehensive turbulent effect.

[0028] Furthermore, in order to create swirling turbulence during tangential dispersion, forming multiple fluid flow paths that interact with each other to achieve a more complete mixing effect, the turbulent structure also includes a turbulence rod 7, on which is disposed a second sleeve shaft 701. The second sleeve shaft 701 is sleeved outside the first sleeve shaft 601 to form a structure coaxial with the main shaft 2 and the first sleeve shaft 601, thereby reducing additional axial holes and compacting the structure. In addition, the drive assembly 5 is also used to drive the second sleeve shaft 701 and the turbulence rod 7 to rotate, and the rotation direction is opposite to the rotation direction of the first sleeve shaft 601, thereby forming agitation in the opposite direction to the swirling flow formed by the structure coaxial with the main shaft 2, and fluid flow, thereby turbulent the swirling flow, forming multiple fluid flow paths, and interacting with each other to promote mixing.

[0029] It can be understood that when the propulsion stirring paddle 4 makes a circular motion with the axis of the main shaft 2, it moves eccentrically and pushes the material upward to float. The floating material is broken up by the dispersion disc stirring paddle 6 and flows tangentially, and the fluid that flows tangentially to the inner wall of the kettle body 1 is stirred in the reverse direction by the turbulence rod 7, breaking up its vortex, and then fully turbulent during the stirring. In addition, there is also the differential speed of the propulsion stirring paddle 4 when floating and sinking, and the collision of the fluids, forming multiple turbulences and sufficient mixing.

[0030] Specifically, in order to have a turbulent effect on the upward and downward swirl of the propulsion agitator 4, the turbulence rod 7 includes a transversely extending crossbar 71 and a vertically extending vertical rod 72. The crossbar 71 is distributed above the dispersion disc agitator 6, and the vertical rod 72 is distributed on both sides of the dispersion disc paddle and extends downward.

[0031] It can be understood that the number of cross bars 71 is at least two and they are symmetrically distributed. Each cross bar 71 has a vertical bar 72 extending downward, and the vertical bar 72 extends from the top of the disperser disc agitator 6 to the bottom, thereby covering the upper and lower parts of the disperser disc agitator 6 and being able to generate a force on the upper and lower vortices.

[0032] In a certain embodiment, in order to drive several stirring paddles, the driving assembly 5 includes four driving motors 53, and the four driving motors 53 are respectively used to drive the transmission member 3 to transmit, the main shaft 2 to rotate, the first sleeve shaft 601 to rotate, and the second sleeve shaft 701 to rotate. By using separate motors to drive the corresponding shafts, the driving effect of the stirring paddles can be obtained.

[0033] Specifically, the output shaft of one of the drive motors 53 is connected to the drive end of the transmission member 3, and the other three drive motors 53 are respectively connected to the main shaft 2, the first sleeve shaft 601 and the second sleeve shaft 701 through the bevel gear set 52. The first drive motor 53 is arranged vertically, and the other three drive motors 53 are arranged horizontally. The bevel gear set 52 converts the horizontal transmission into vertical transmission to rotate the vertical shaft.

[0034] It can be understood that under the drive of the drive motor 53 on the transmission member 3, the propulsion stirring paddle 4 is driven to rotate; under the drive of the drive motor 53 on the main shaft 2, the propulsion stirring paddle 4 is driven to make circular motion around the main shaft 2; under the drive of the drive motor 53 on the first sleeve shaft 601, the dispersion disc stirring paddle 6 is driven to rotate; under the drive of the drive motor 53 on the second sleeve shaft 701, the turbulation rod 7 is driven to rotate.

[0035] In another embodiment, in order to save the number of motors and arrange the driving structure reasonably, obtain a more advanced driving structure arrangement, and obtain an effective rotational driving effect, the driving assembly 5 includes two driving motors 53, and the output shaft of one driving motor 53 is connected to the driving end of the transmission member 3, for driving the transmission member 3 to its output end and outputting rotation. The output shaft of the other driving motor 53 is connected to the central shaft 51, and one end of the central shaft 51 drives the first sleeve shaft 601 to rotate through the bevel gear set 52. A reduction gear set 8 is provided on the central shaft 51, and the output end of the reduction gear set 8 is transmitted to the main shaft 2 for rotation through the bevel gear set 52. A reverse gear set 9 is also provided on the central shaft 51, and the output end of the reverse gear set 9 is transmitted to the second sleeve shaft 701 for rotation through the bevel gear set 52.

[0036] Specifically, the central shaft 51 is transmission-connected to the first sleeve shaft 601 via a bevel gear set 52. The reduction gear set 8 can utilize three spur gears: two spur gears with fewer teeth and one spur gear with a larger number of teeth. The spur gear with a smaller number of teeth is coaxially mounted on the central shaft 51, and the other spur gear with a smaller number of teeth meshes with it, meshing with the other gear with a larger number of teeth, thereby generating a reduction in speed and a transmission in the same direction of rotation. The first sleeve shaft 601 is transmission-connected to the gear with a larger number of teeth via the bevel gear set 52, thereby generating differential rotation between the main shaft 2 and the first sleeve shaft 601. Furthermore, the reverse gear set 9 can utilize two intermeshing spur gears: one coaxially mounted on the central shaft 51, and the other transmission-connected to the second sleeve shaft 701 via the bevel gear set 52, thereby generating a rotation direction opposite to that of the central shaft 51.

[0037] The bevel gear set 52 includes a pair of vertically meshed bevel gears for changing the transmission direction between vertical rotation and horizontal rotation.

[0038] It can be understood that the shaft end of the central shaft 51 is connected to the vertically rotating bevel gear, and the other bevel gear is an annular bevel gear, which is arranged on the outside of the first sleeve shaft 601. Similarly, the spur gears on the reverse gear set 9 and the reduction gear set 8 are also connected and transmitted to the bevel gear set 52 through this structure.

[0039] In a certain embodiment, in order to ensure that the rotation drive of the propulsion stirring paddle 4 does not affect the differential rotation between the main shaft 2 and the shaft 201, the main shaft 2 and the shaft 201 are both hollow shafts, and the transmission member 3 includes a first shaft 31, a bevel gear set 52, a second shaft 32 and a third shaft 33, wherein the first shaft 31 and the second shaft 32 are respectively connected to the driving end and the output end of the bevel gear set 52, forming the horizontal rotation of the second shaft 32, and the second shaft 32 and the third shaft 33 are respectively connected to the driving end and the output end of another bevel gear set 52, forming the vertical rotation of the third shaft 33, wherein the first shaft 31 passes through the main shaft 2, the second shaft 32 passes through the shaft 201, and the third shaft 33 passes through the shaft 201 downward. In addition, at the position of the bevel gear set 52, there is a circular shell connecting the main shaft 2 and the shaft 201, and there is also a circular shell at the position where the shaft 201 outputs the third shaft 33 downward.

[0040] In the above embodiments, mechanical seals are provided between the third shaft 33 and the shaft rod 201 , between the main shaft 2 and the first sleeve shaft 601 , between the first sleeve shaft 601 and the second sleeve shaft 701 , and between the second sleeve shaft 701 and the kettle body 1 .

[0041] It is understandable that under the protection of mechanical seals, the shaft teeth are made of corrosion-resistant materials to increase their service life.

[0042] The specific working process of the present invention is as follows: in the driving part, the first drive motor 53 drives the first shaft 31 to rotate, and under the transmission of the bevel gear set 52, the second shaft 32 and the third shaft 33, the propeller stirring paddle 4 is driven to rotate, and the second drive motor 53 drives the central shaft 51 to rotate. Under the cooperation and separate transmission of the bevel gear set 52, the reduction gear set and the reverse gear set 9, the main shaft 2, the first sleeve shaft 601 and the second sleeve shaft 701 are driven to rotate, and the first sleeve shaft 601 and the second sleeve shaft 701 rotate in opposite directions; in the stirring part, the rotation of the main shaft 2 drives the propeller stirring paddle 4 to make a circular motion around the axis of the main shaft 2, so as to expand the coverage range of the movement mode, increase the area that the propeller stirring paddle 4 can stir, and float the material upward, forming a logistics stirring with one side floating up and the other side sinking, and the material on the floating side will be tangentially dispersed by the dispersion disk stirring 6, and cooperate with the reverse stirring of the turbulence rod 7 to form a sufficient turbulent effect, prevent the high specific gravity material from settling at the bottom, and make the material fully turbulent.

[0043] The entire workflow is complete, and all contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0044] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. A turbulent flow structure of a reactor, It is characterized in that include: Kettle body; A main shaft, the main shaft is rotatably connected to the kettle body, a shaft rod is horizontally extended from the bottom of the main shaft, a transmission member is arranged between the shaft rod and the inside of the main shaft, a propulsion stirring paddle is arranged at the output end of the transmission member, and is used to drive the propulsion stirring paddle to rotate, so that the propulsion stirring paddle rotates eccentrically around the central axis of the main shaft, and the propulsion stirring paddle is used to propel the fluid upward; and The driving assembly is used to drive the transmission member to the propulsion stirring paddle, and drive the main shaft and the propulsion stirring paddle to perform differential rotation.

2. The turbulent flow structure of the reactor according to claim 1, It is characterized in that It also includes a dispersed disc agitator, on which a first sleeve shaft is arranged, and the first sleeve shaft is sleeved on the outside of the main shaft. The driving assembly is also used to drive the first sleeve shaft and the dispersed disc agitator to rotate, wherein the dispersed disc agitator is located directly above the propulsion agitator.

3. The turbulent flow structure of the reactor according to claim 2, It is characterized in that It also includes a turbulator rod, on which a second sleeve shaft is arranged, and the second sleeve shaft is sleeved on the outside of the first sleeve shaft. The driving assembly is also used to drive the second sleeve shaft and the turbulator rod to rotate, and the rotation direction is opposite to the rotation direction of the first sleeve shaft.

4. The turbulent flow structure of the reactor according to claim 3, It is characterized in that The turbulence rod comprises a transversely extending crossbar and a vertically extending vertical rod, wherein the crossbar is distributed above the dispersion disc type stirring paddle, and the vertical rod is distributed on both sides of the dispersion disc type paddle blade and extends downward.

5. The turbulent flow structure of the reactor according to claim 4, It is characterized in that The driving assembly includes four driving motors, and the four driving motors are respectively used to drive the transmission member to transmit, the main shaft to rotate, the first sleeve shaft to rotate, and the second sleeve shaft to rotate.

6. The turbulent flow structure of the reactor according to claim 5, It is characterized in that An output shaft of the driving motor is connected to the driving end of the transmission member, and the other three driving motors are respectively connected to the main shaft, the first sleeve shaft and the second sleeve shaft through a bevel gear set.

7. The turbulent flow structure of the reactor according to claim 4, It is characterized in that The driving assembly includes two driving motors, the output shaft of one driving motor is connected to the driving end of the transmission member, and is used to drive the transmission member to its output end for output rotation, and the output shaft of the other driving motor is connected to the central shaft, one end of the central shaft drives the first sleeve shaft to rotate through a bevel gear set, a reduction gear set is provided on the central shaft, and the output end of the reduction gear set is transmitted to the main shaft for rotation through the bevel gear set, and a reverse gear set is also provided on the central shaft, and the output end of the reverse gear set is transmitted to the second sleeve shaft for rotation through the bevel gear set.

8. The turbulent flow structure of the reactor according to claim 6 or 7, It is characterized in that The main shaft and the shaft rod are both hollow shafts, and the transmission member includes a first shaft, a bevel gear set, a second shaft and a third shaft, wherein the first shaft and the second shaft are respectively connected to the driving end and the output end of the bevel gear set to form a horizontal rotation of the second shaft, and the second shaft and the third shaft are respectively connected to the driving end and the output end of another bevel gear set to form a vertical rotation of the third shaft.

9. The turbulent flow structure of the reactor according to claim 8, It is characterized in that The bevel gear set includes a pair of vertically meshed bevel gears for changing the transmission direction between vertical rotation and horizontal rotation.

10. The turbulent flow structure of the reactor according to claim 9, It is characterized in that Mechanical seals are arranged between the third shaft and the shaft rod, between the main shaft and the first sleeve shaft, between the first sleeve shaft and the second sleeve shaft, and between the second sleeve shaft and the kettle body.

Images