A device and method for preparing ultrafine powder nickelous oxide by atomization roasting

Abstract

The invention discloses a device for preparing ultrafine nickelous oxide powder by atomization roasting method and a preparation method thereof, and relates to the field of ultrafine nickelous oxide preparation, comprising a preparation tube and four support columns evenly distributed on the top thereof, wherein the top of the support column is fixedly connected with a top plate. In the invention, when the worm rotates, it synchronously drives the third rotating rod and the worm wheel to rotate, and this design enables the third rotating rod to indirectly drive the stirring rod to perform stirring operation, and at the same time, the worm wheel utilizes the mechanism of the eccentric wheel during the rotation process to drive the connecting rod to perform corresponding activities, and the activities of the connecting rod will exert an action force on the central rod, thereby controlling the rocker to perform a swinging operation, so that the stirring force is no longer fixed, but will continuously change, which not only significantly enhances the uniformity and effect of stirring, but also greatly promotes the rapid mixing and reaction process of the solution, not only ensures the quality of the nickelous oxide powder, but also improves the fluency and efficiency of the entire preparation process.

Description

Technical Field

[0001] The invention relates to the technical field of ultrafine powder nickelous oxide preparation, in particular to an ultrafine powder nickelous oxide preparation device and a preparation method thereof by atomization roasting. Background Art

[0002] Nickelous oxide has good catalytic activity, ferromagnetism, electrochemistry, thermosensitivity, gas sensitivity and electroluminescence properties. It is an important inorganic functional material and is widely used in the fields of national defense security and social life such as electronic information, metallurgy, chemistry and chemical engineering.

[0003] However, in the prior art, the process of liquid phase wet chemical method is relatively complicated, involving multiple steps and reaction conditions, and requires precise control of various parameters such as temperature, pressure, reaction time, etc., which not only increases the difficulty of operation, but also increases the production cost. In addition, this method consumes a lot of raw and auxiliary materials, resulting in low resource utilization efficiency, which further increases the production cost.

[0004] Secondly, in the preparation process of nickel chloride solution, the sufficiency of stirring and the control of stirring speed are crucial. Insufficient stirring or improper control of stirring speed may easily lead to uneven distribution of solute and solvent in the solution, and uneven stratification may easily occur. Summary of the invention

[0005] The purpose of the present invention is to provide an ultrafine powder nickelous oxide atomization roasting method preparation device and preparation method thereof, so as to solve the problem that the traditional method proposed in the above background technology has high preparation cost and is prone to uneven stratification.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for preparing ultrafine powder nickelous oxide by atomization and roasting method, comprising a preparation tube and four support columns evenly distributed on the top thereof, the top of the support column being fixedly connected to a top plate, the preparation tube being used to prepare a nickel chloride solution, the inner side of the top of the preparation tube being fixedly connected to a support plate, one side of the top of the support plate being fixedly connected to a second fixed frame, and the center of the top of the support plate being fixedly connected to a first fixed frame, a stirring mechanism being installed above the preparation tube, a transmission mechanism being installed below the top plate, and an atomization and roasting mechanism being installed on one side of the preparation tube, the atomization and roasting mechanism being used to atomize and roast the nickel chloride solution;

[0007] The stirring mechanism comprises a worm gear, a worm and a connecting rod, wherein both sides of the worm gear are fixedly connected to an eccentric wheel, the top end of the connecting rod is sleeved on the surface of the eccentric wheel, a center rod is arranged below the worm gear, the outer surfaces of both ends of the center rod are fixedly connected to rocking arms, the bottom end of the connecting rod is sleeved on the outer surface of one end of the center rod, a fourth support frame is arranged between the two rocking arms, one side of the fourth support frame is fixedly connected to the second fixed frame, and the fourth support frame is rotatably connected to one end of the rocking arm, one side of the worm gear is meshingly connected with a worm, the bottom end of the worm is fixedly connected to a third rotating rod, the surface of the third rotating rod is slidably connected with a rotating sleeve, the outer surface of the rotating sleeve is provided with a pushing groove, the inside of the pushing groove is slidably connected with a sliding block, the sliding block is rotatably connected to one end of the rocking arm, and the bottom of the rotating sleeve is fixedly connected to the fourth rotating rod.

[0008] Preferably, a driving motor is fixedly connected to the inner side of the first fixed frame, a driving rod is fixedly connected to the output end of the driving motor, one end of the driving rod passes through the first fixed frame, and one end of the first fixed frame is fixedly connected to a belt transmission member, and one end of the belt transmission member is fixedly connected to the outer surface of the first rotating rod.

[0009] Preferably, two protrusions are symmetrically fixedly connected to the outer surface of the third rotating rod, and the protrusions are plugged into the rotating sleeve. The bottom end of the fourth rotating rod passes through the support plate, and the bottom end of the fourth rotating rod is fixedly connected to a stirring rod. The top end of the worm is fixedly connected to a coupling rod, and the coupling rod is fixedly connected to the bottom end of the first rotating rod. The outer surfaces of both ends of the worm are rotatably connected to a third support frame, and the third support frame is fixedly connected to the side wall of the first fixed frame.

[0010] Preferably, both sides of the worm gear are rotatably connected to a second support frame, and one side of the second support frame is fixedly connected to a second fixing frame.

[0011] Preferably, the transmission mechanism includes a first rotating rod and a rotating column, the top of the first rotating rod is fixedly connected to a movable plate, the side wall of the movable plate is fixedly connected to an arc shell, and one end of the movable plate is fixedly connected to a pushing rod, one end of the rotating column is rotatably connected to the second rotating rod, one end of the second rotating rod is fixedly connected to a sphere, an arc groove begins to be formed on the outer surface of the sphere, and a driving groove begins to be formed between the two arc grooves.

[0012] Preferably, the arc shell is slidably connected to the arc groove, one end of the push rod is slidably connected to the driving groove, the outer surface of the rotating column is rotatably connected to a first support frame, and the top of the first support frame is fixedly connected to the bottom of the top plate.

[0013] Preferably, the atomizing roasting mechanism includes a fixed plate and a tubular resistance furnace, the top of the fixed plate is fixedly connected to a limiting frame, the outer surface of the tubular resistance furnace is fixedly connected to a rotating frame, the rotating frame is slidably connected to the limiting frame, an atomizing nozzle is provided on one side of the tubular resistance furnace, and one end of the atomizing nozzle is fixedly connected to the preparation cylinder.

[0014] Preferably, a synchronous wheel is fixedly connected to the outer surface of one end of the tubular resistance furnace, and a synchronous belt is sleeved on the outer surface of the synchronous wheel. A driving wheel is fixedly connected to the outer surface of one end of the rotating column, and the driving wheel is sleeved on the synchronous belt.

[0015] A method for preparing ultrafine powder nickelous oxide by atomization roasting method comprises the following steps:

[0016] Step 1, solution preparation: use ionized water to prepare a solution with a concentration of 1M, add pure concentrated hydrochloric acid to adjust the pH value of the solution to 1.00-1.50 to inhibit the hydrolysis and precipitation of nickel ions;

[0017] Step 2: Feed liquid: nickel chloride solution flows into the liquid inlet of the atomizing nozzle, and the compressed carrier gas enters the air inlet of the atomizing nozzle after being filtered. Different compressed gases are used as carrier gases;

[0018] Step 3: Atomization spraying: The feed liquid is fully mixed with the compressed air in the nozzle, and the feed liquid is atomized by the high-pressure gas into uniform fine droplets and sprayed into the tubular resistance furnace;

[0019] Step 4: Calcination: Calcinate the fine droplets using a tubular resistance furnace, and collect the nickelous oxide powder using a cyclone dust collector.

[0020] Preferably, after pouring the ionized water into the preparation barrel in step one, when the driving motor is operated, the worm will rotate accordingly, thereby driving the third rotating rod to rotate, and the rotating sleeve will also rotate together, so as to control the stirring rod to perform a stirring operation.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In the present invention, when the worm rotates, it will synchronously drive the third rotating rod and the worm wheel to rotate. This design enables the third rotating rod to indirectly drive the stirring rod to perform stirring operations. At the same time, the worm wheel will use the mechanism of the eccentric wheel to drive the connecting rod to perform corresponding activities during the rotation process. The activity of the connecting rod will exert a force on the center rod, thereby controlling the rocker to swing, so that the stirring force is no longer fixed, but will continue to change, which not only significantly enhances the uniformity and effect of stirring, but also greatly promotes the rapid mixing and reaction process of the solution, not only ensures the quality of nickelous oxide powder, but also improves the fluency and efficiency of the entire preparation process.

[0023] 2. In the present invention, when the first rotating rod rotates, it will drive the arc shell and the movable plate to rotate together. During this process, the arc shell will fit tightly into the arc groove to ensure that the two will not interfere with each other or generate friction during the rotation process. At this time, the push rod slides inside the driving groove to apply an appropriate force to the sphere. This design makes it possible for the pushing force of the push rod to only rotate the sphere ninety degrees every time the first rotating rod rotates one circle. In this way, the rotation of the tubular resistance furnace becomes intermittent. This intermittent rotation method helps to evenly dry the nickelous oxide powder during atomization roasting. This design not only improves the preparation efficiency, but also ensures product quality.

[0024] 3. In the present invention, the high temperature environment inside the tubular resistance furnace allows the nickel chloride solution to be rapidly atomized and chemically react. In order to ensure the uniformity and efficiency of this process, the synchronous wheel plays a vital role. It drives the tubular resistance furnace to rotate, ensuring that all parts in the furnace can be heated evenly, thereby ensuring the quality and fluidity of the nickelous oxide powder. This rotational motion not only helps to avoid the problem of uneven roasting, but also improves the efficiency of the entire preparation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of a device for preparing ultrafine powder nickelous oxide by atomization roasting method of the present invention;

[0026] Figure 2 It is a partial structural schematic diagram of a device for preparing ultrafine powder nickelous oxide by atomization roasting method of the present invention;

[0027] Figure 3 This is a schematic structural diagram of a stirring mechanism in a device for preparing ultrafine nickelous oxide powder by atomization roasting method according to the present invention;

[0028] Figure 4 It is a front view schematic diagram of a stirring mechanism in a device for preparing ultrafine nickelous oxide powder by atomization roasting method of the present invention;

[0029] Figure 5 This is a schematic diagram of the split structure of a stirring mechanism in a device for preparing ultrafine nickelous oxide powder by atomization roasting method according to the present invention;

[0030] Figure 6 It is a schematic structural diagram of a transmission mechanism in a device for preparing ultrafine nickelous oxide powder by atomization roasting method according to the present invention;

[0031] Figure 7 It is a schematic diagram of the disassembled structure of the transmission mechanism in a device for preparing ultrafine nickelous oxide powder by atomization roasting method of the present invention;

[0032] Figure 8It is a schematic diagram of the disassembled structure of the atomization and roasting mechanism in a device for preparing ultrafine nickelous oxide powder by atomization and roasting method according to the present invention;

[0033] Fig. 9 The present invention is a schematic flow chart of a method for preparing ultrafine nickelous oxide powder by atomization and roasting.

[0034] In the figure: 1, preparation cylinder; 11, support plate; 12, first fixed frame; 13, second fixed frame; 14, drive motor; 15, drive rod; 16, belt transmission member; 2, top plate; 3, transmission mechanism; 31, first rotating rod; 32, movable plate; 321, arc shell; 33, push rod; 34, sphere; 341, arc groove; 342, drive groove; 35, second rotating rod; 36, rotating column; 361, first support frame; 37, driving wheel; 38, synchronous belt; 39, synchronous wheel; 4, stirring mechanism; 41, Worm gear; 411, second support frame; 42, eccentric wheel; 43, worm; 431, coupling rod; 432, third support frame; 44, connecting rod; 45, center rod; 451, fourth support frame; 46, rocker; 47, slider; 48, third rotating rod; 481, bump; 49, rotating sleeve; 491, fourth rotating rod; 492, pushing groove; 493, stirring rod; 5, atomizing roasting mechanism; 51, tubular resistance furnace; 52, fixed plate; 53, limit frame; 54, rotating frame; 55, atomizing nozzle; 6, support column. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described 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 creative work are within the scope of protection of the present invention.

[0036] Example 1: Reference Figure 1-5 As shown: a device for preparing ultrafine powder nickelous oxide by atomization and roasting method, comprising a preparation tube 1 and four support columns 6 evenly distributed on the top thereof, a top plate 2 being fixedly connected to the top of the support column 6, the preparation tube 1 being used for preparing nickel chloride solution, a support plate 11 being fixedly connected to the inner side of the top of the preparation tube 1, a second fixing frame 13 being fixedly connected to one side of the top of the support plate 11, and a first fixing frame 12 being fixedly connected to the center of the top of the support plate 11, a stirring mechanism 4 being installed above the preparation tube 1, a transmission mechanism 3 being installed below the top plate 2, and an atomization and roasting mechanism 5 being installed on one side of the preparation tube 1, the atomization and roasting mechanism 5 being used for atomizing and roasting the nickel chloride solution;

[0037] The stirring mechanism 4 includes a worm gear 41, a worm 43 and a connecting rod 44. The worm gear 41 is fixedly connected to an eccentric wheel 42 on both sides. The top end of the connecting rod 44 is sleeved on the surface of the eccentric wheel 42. A center rod 45 is arranged below the worm gear 41. The outer surfaces of both ends of the center rod 45 are fixedly connected to rocking arms 46. The bottom end of the connecting rod 44 is sleeved on the outer surface of one end of the center rod 45. A fourth support frame 451 is arranged between the two rocking arms 46. One side of the fourth support frame 451 is fixedly connected to the second fixed frame 13, and the fourth support frame 451 is rotatably connected to one end of the rocking arm 46. The worm 43 is meshingly connected to one side of the worm gear 41. The bottom end of the worm 43 is fixedly connected to a third rotating rod 48. A rotating sleeve 49 is slidably connected to the surface of the third rotating rod 48. A pushing groove 492 is provided on the outer surface of the rotating sleeve 49. A slider 47 is slidably connected inside the pushing groove 492. The slider 47 is rotatably connected to one end of the rocking arm 46. The bottom of the rotating sleeve 49 is fixedly connected to the fourth rotating rod 491.

[0038] The outer surface of the third rotating rod 48 is symmetrically fixedly connected with two protrusions 481, which are plugged into the rotating sleeve 49. The bottom end of the fourth rotating rod 491 passes through the support plate 11, and the bottom end of the fourth rotating rod 491 is fixedly connected with a stirring rod 493. The top of the worm 43 is fixedly connected with a coupling rod 431, and the coupling rod 431 is fixedly connected with the bottom end of the first rotating rod 31. The outer surfaces of both ends of the worm 43 are rotatably connected with third support frames 432, and the third support frames 432 are fixedly connected with the side wall of the first fixed frame 12. The second support frames 411 are rotatably connected on both sides of the worm wheel 41, and one side of the second support frame 411 is fixedly connected with the second fixed frame 13.

[0039] In this embodiment, when the worm 43 starts to rotate, its power is not only directly transmitted to the third rotating rod 48, causing it to rotate, but also indirectly generates a force on the worm wheel 41, causing the rotation of the worm wheel 41. As the third rotating rod 48 rotates, the protrusion 481 on its surface begins to contact the rotating sleeve 49 and exerts a force. This force enables the rotating sleeve 49 to rotate following the rotation of the third rotating rod 48, thereby driving the rotation of the fourth rotating rod 491 connected thereto. In this process, the stirring rod 493 at the bottom end of the fourth rotating rod 491 begins to exert its stirring function, and efficiently stirs the substances inside the preparation tube 1. This stirring action helps to accelerate the preparation process of the nickel chloride solution and improve the preparation efficiency.

[0040] At the same time, the worm gear 41 drives the eccentric wheels 42 on both sides to rotate, and the rotation of the eccentric wheels 42 causes the connecting rod 44 on its surface to start moving. As the connecting rod 44 moves, it applies a force to the center rod 45 connected thereto, causing the center rod 45 to move accordingly. In this process, the rocker 46 swings around the connection point between it and the fourth support frame 451. Since the eccentric wheel 42 rotates continuously with the worm gear 41, the force applied by the connecting rod 44 to the rocker 46 will change continuously, causing the rocker 46 to swing back and forth.

[0041] This swinging motion is further transmitted to the slider 47 through the rocker 46, so that the slider 47 can change its position within its range of motion. During this process, although the rotating sleeve 49 remains in a rotating state, the design of the push groove 492 ensures that the rotation of the rotating sleeve 49 will not interfere with the movement of the slider 47. However, when the slider 47 moves following the rocker 46, it will exert an additional force on the rotating sleeve 49. This force enables the rotating sleeve 49 to slide up and down on the surface of the third rotating rod 48. This sliding motion allows the position of the stirring rod 493 to be changed, thereby achieving a continuous change in the stirring force during the stirring process. This design not only improves the stirring effect, but also helps to improve the preparation efficiency of the nickel chloride solution.

[0042] Embodiment 2: Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, a driving motor 14 is fixedly connected to the inner side of the first fixed frame 12, and a driving rod 15 is fixedly connected to the output end of the driving motor 14. One end of the driving rod 15 passes through the first fixed frame 12, and one end of the first fixed frame 12 is fixedly connected to a belt transmission member 16, and one end of the belt transmission member 16 is fixedly connected to the outer surface of the first rotating rod 31. The transmission mechanism 3 includes a first rotating rod 31 and a rotating column 36. A movable plate 32 is fixedly connected to the top of the first rotating rod 31, and an arc shell 321 is fixedly connected to the side wall of the movable plate 32, and a push rod 33 is fixedly connected to one end of the movable plate 32. One end of the rotating column 36 is rotatably connected to the second rotating rod 35, and one end of the second rotating rod 35 is fixedly connected to a sphere 34. An arc groove 341 begins to be formed on the outer surface of the sphere 34, and a driving groove 342 begins to be formed between the two arc grooves 341. The arc shell 321 is slidably connected to the arc groove 341 , one end of the push rod 33 is slidably connected to the driving groove 342 , the outer surface of the rotating column 36 is rotatably connected to the first support frame 361 , and the top of the first support frame 361 is fixedly connected to the bottom of the top plate 2 .

[0043] In this embodiment, when the driving motor 14 starts to work, it generates a rotational power which is transmitted to the driving rod 15 connected thereto, so that the driving rod 15 also starts to rotate. The driving rod 15 transmits the power to the first rotating rod 31 through the belt transmission member 16. As the first rotating rod 31 rotates, it not only drives the rotation of the movable plate 32, but also causes the worm 43 to rotate through the connection of the coupling rod 431.

[0044] As the movable plate 32 rotates, the arc-shaped shell 321 and the push rod 33 start to move in a circle along a predetermined path. In this process, the arc-shaped shell 321 will fit closely with the arc-shaped groove 341 to ensure that they do not interfere with each other during the rotation process.

[0045] When the push rod 33 gradually approaches the ball 34, it will accurately enter the driving groove 342. At this time, the push rod 33 applies an appropriate force to the ball 34, so that the ball 34 starts to rotate. As the first rotating rod 31 rotates one circle, the pushing force of the push rod 33 can only make the ball 34 rotate ninety degrees.

[0046] The rotation of the ball 34 is not isolated, and it further drives the rotation of the second rotating rod 35. The rotation of the second rotating rod 35 is transmitted to the rotating column 36, so that the rotating column 36 also starts to rotate. In this process, the first support frame 361 plays a key role, which limits the range of motion of the rotating column 36 and ensures the stability and controllability of its rotation.

[0047] As the rotating column 36 rotates, the driving wheel 37 on its outer surface also starts to rotate. The design of the driving wheel 37 fully considers the efficiency and stability of power transmission, so that it can effectively transmit the rotational power to the synchronous belt 38. The synchronous belt 38 starts to move under the drive of the driving wheel 37, and it is like a flexible bond, transmitting the power to the synchronous wheel 39. Finally, the rotation of the synchronous wheel 39 drives the rotation of the tubular resistance furnace 51. So that the nickelous oxide powder can be evenly dried during the atomization roasting.

[0048] Embodiment 3: According to Figure 6-8 As shown, the atomization roasting mechanism 5 includes a fixed plate 52 and a tubular resistance furnace 51. The top of the fixed plate 52 is fixedly connected to a limiting frame 53. The outer surface of the tubular resistance furnace 51 is fixedly connected to a rotating frame 54. The rotating frame 54 is slidably connected to the limiting frame 53. An atomizing nozzle 55 is provided on one side of the tubular resistance furnace 51. One end of the atomizing nozzle 55 is fixedly connected to the preparation tube 1. A synchronous wheel 39 is fixedly connected to the outer surface of one end of the tubular resistance furnace 51. A synchronous belt 38 is sleeved on the outer surface of the synchronous wheel 39. A driving wheel 37 is fixedly connected to the outer surface of one end of the rotating column 36. The driving wheel 37 is sleeved on the synchronous belt 38.

[0049] In this embodiment, after the nickel chloride solution is prepared, one end of the atomizing nozzle 55 is connected to a small pump, which can accurately and stably deliver the nickel chloride solution. When the solution is delivered to the atomizing nozzle 55, the solution is evenly sprayed into the interior of the tubular resistance furnace 51 through the specially designed nozzle structure.

[0050] During the atomization roasting process, the high temperature environment inside the tubular resistance furnace 51 causes the nickel chloride solution to be rapidly atomized and chemically react. In order to ensure the uniformity and efficiency of this process, the synchronous wheel 39 plays a vital role. It drives the tubular resistance furnace 51 to rotate, ensuring that all parts in the furnace can be heated evenly, thereby ensuring the quality and smoothness of the nickelous oxide powder. This rotational motion not only helps to avoid the problem of uneven roasting, but also improves the efficiency of the entire preparation process.

[0051] As the tubular resistance furnace 51 rotates, the rotating frame 54 also moves therewith. The rotating frame 54 is cleverly designed inside the limiting frame 53 so that it can remain stable during the rotation process. This design not only ensures the stability of the tubular resistance furnace 51 during rotation.

[0052] Embodiment 4: According to Fig. 9 As shown, a method for preparing ultrafine powder nickelous oxide by atomization roasting method comprises the following steps:

[0053] 1) Solution preparation: Use ionized water to prepare a solution with a concentration of 1M, add pure concentrated hydrochloric acid to adjust the pH value of the solution to 1.00-1.50 to inhibit the hydrolysis and precipitation of nickel ions;

[0054] 2) Liquid delivery: The nickel chloride solution flows into the liquid inlet of the atomizing nozzle 55, and the compressed carrier gas enters the gas inlet of the atomizing nozzle 55 after being filtered. Different compressed gases are used as carrier gases;

[0055] 3) Atomization spraying: the feed liquid is fully mixed with the compressed air in the nozzle, and the feed liquid is atomized by the high-pressure gas into uniform fine droplets and sprayed into the tubular resistance furnace 51;

[0056] 4) Calcination: The fine droplets are calcined using a tubular resistance furnace 51, and the nickelous oxide powder is collected using a cyclone dust collector.

[0057] After the ionized water is poured into the preparation barrel 1 in step 1), when the driving motor 14 is in operation, the worm 43 will rotate accordingly, thereby driving the third rotating rod 48 to rotate, and the rotating sleeve 49 will also rotate together, so as to control the stirring rod 493 to perform a stirring operation.

[0058] The use method and working principle of the device: When the driving motor 14 is running, it can drive the driving rod 15 to rotate synchronously. At this time, the driving rod 15 uses the belt transmission member 16 to make the first rotating rod 31 start to rotate. During the rotation process of the first rotating rod 31, it not only drives the movable plate 32 to rotate together, but also makes the worm 43 start to rotate normally through the coupling rod 431 connected to the bottom end.

[0059] As the movable plate 32 rotates, the arc shell 321 and the push rod 33 begin to continuously perform circular motion. When the arc shell 321 rotates, it fits tightly with the arc groove 341, and the two do not interfere with each other. When the push rod 33 gradually approaches the ball 34, it will accurately enter the driving groove 342 and exert a force on the ball 34, so that the ball 34 starts to rotate. However, it is worth noting that as the first rotating rod 31 completes a circle of rotation, the driving force of the push rod 33 can only rotate the ball 34 by ninety degrees.

[0060] The rotation of the ball 34 further drives the rotation of the second rotating rod 35, and then the rotating column 36 also starts to rotate. This rotation action causes the driving wheel 37 on the outer surface of the rotating column 36 to start to rotate. At this time, the rotating column 36 not only continues to rotate under the limiting action of the first support frame 361, but the synchronous belt 38 on the surface of the driving wheel 37 also starts to move, and drives the synchronous wheel 39 to rotate through the synchronous belt 38, thereby driving the tubular resistance furnace 51 to rotate.

[0061] At the same time, the rotation of the worm 43 not only drives the rotation of the third rotating rod 48, but also exerts a force on the worm wheel 41, causing it to start rotating. During the rotation process, the third rotating rod 48 exerts a force on the rotating sleeve 49 using the protrusion 481 on its surface, so that the rotating sleeve 49 drives the fourth rotating rod 491 to rotate together. During this process, the stirring rod 493 connected to the bottom end of the fourth rotating rod 491 rotates normally, achieving stirring of the raw materials inside the preparation barrel 1, which helps to quickly prepare the nickel chloride solution.

[0062] During the preparation process, the rotation of the worm wheel 41 drives the eccentric wheels 42 on both sides to rotate at the same time. The rotation of the eccentric wheel 42 drives the connecting rod 44 on its surface to move, so that the connecting rod 44 applies a force to the center rod 45 connected to the bottom end. In this process, the rocker 46 swings around the connection point between it and the fourth support frame 451. Since the eccentric wheel 42 rotates continuously with the worm wheel 41, the force applied by the connecting rod 44 to the rocker 46 will change continuously, causing the rocker 46 to swing back and forth up and down.

[0063] The swing of the rocker 46 drives the position change of the slider 47. In this process, although the rotating sleeve 49 keeps rotating, the existence of the push groove 492 ensures that the rotation of the rotating sleeve 49 will not interfere with the movement of the slider 47. As the slider 47 follows the movement of the rocker 46, it exerts a force on the rotating sleeve 49, causing the rotating sleeve 49 to slide up and down on the surface of the third rotating rod 48. This design is intended to change the position of the stirring rod 493 so that when the solution is stirred, the stirring force can continuously change position, thereby improving the preparation efficiency of the nickel chloride solution.

[0064] After the nickel chloride solution is prepared, the solution is transported to the tubular resistance furnace 51 for atomization and roasting through a small pump at one end of the atomizing nozzle 55. During the roasting process, the synchronous wheel 39 drives the tubular resistance furnace 51 to rotate to ensure uniform temperature in the furnace, thereby ensuring the quality and fluidity of the nickelous oxide powder and avoiding uneven roasting. When the tubular resistance furnace 51 rotates, it drives the rotating frame 54 to rotate together. This allows the rotating frame 54 to slide inside the limiting frame 53, thereby ensuring that the tubular resistance furnace 51 remains stable during the rotation process.

[0065] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for preparing ultrafine powder nickelous oxide by atomization roasting method, comprising a preparation tube (1) and four support columns (6) evenly distributed on the top thereof, wherein the top of the support column (6) is fixedly connected to a top plate (2), the preparation tube (1) is used to prepare a nickel chloride solution, the inner side of the top of the preparation tube (1) is fixedly connected to a support plate (11), one side of the top of the support plate (11) is fixedly connected to a second fixing frame (13), and the center of the top of the support plate (11) is fixedly connected to a first fixing frame (12), characterized in that: A stirring mechanism (4) is installed above the preparation cylinder (1), a transmission mechanism (3) is installed below the top plate (2), and an atomizing and roasting mechanism (5) is installed on one side of the preparation cylinder (1), wherein the atomizing and roasting mechanism (5) is used to atomize and roast the nickel chloride solution; The stirring mechanism (4) comprises a worm wheel (41), a worm (43) and a connecting rod (44); both sides of the worm wheel (41) are fixedly connected to an eccentric wheel (42); the top end of the connecting rod (44) is sleeved on the surface of the eccentric wheel (42); a center rod (45) is arranged below the worm wheel (41); the outer surfaces of both ends of the center rod (45) are fixedly connected to rocking arms (46); the bottom end of the connecting rod (44) is sleeved on the outer surface of one end of the center rod (45); a fourth support frame (451) is arranged between the two rocking arms (46); one side of the fourth support frame (451) is fixedly connected to the second fixing frame (13); and the fourth The support frame (451) is rotatably connected to one end of the rocking rod (46); one side of the worm wheel (41) is meshingly connected to a worm (43); the bottom end of the worm (43) is fixedly connected to a third rotating rod (48); the surface of the third rotating rod (48) is slidably connected to a rotating sleeve (49); the outer surface of the rotating sleeve (49) is provided with a pushing groove (492); the inside of the pushing groove (492) is slidably connected to a slider (47); the slider (47) is rotatably connected to one end of the rocking rod (46); the bottom of the rotating sleeve (49) is fixedly connected to a fourth rotating rod (491); the inner side of the first fixed frame (12) is fixedly connected to a driving member The motor (14) is fixedly connected to a driving rod (15) at an output end of the driving motor (14), one end of the driving rod (15) passes through a first fixing frame (12), and one end of the first fixing frame (12) is fixedly connected to a belt transmission member (16), and one end of the belt transmission member (16) is fixedly connected to an outer surface of a first rotating rod (31); the transmission mechanism (3) comprises a first rotating rod (31) and a rotating column (36), a movable plate (32) is fixedly connected to the top of the first rotating rod (31), a side wall of the movable plate (32) is fixedly connected to an arc-shaped shell (321), and one end of the movable plate (32) is fixedly connected to A push rod (33) is provided, one end of the rotating column (36) is rotatably connected to a second rotating rod (35), one end of the second rotating rod (35) is fixedly connected to a sphere (34), an arc groove (341) is formed at the beginning of the outer surface of the sphere (34), and a driving groove (342) is formed between the two arc grooves (341); the arc shell (321) is slidably connected to the arc groove (341), one end of the pushing rod (33) is slidably connected to the driving groove (342), the outer surface of the rotating column (36) is rotatably connected to a first support frame (361), and the top of the first support frame (361) is fixedly connected to the bottom of the top plate (2); The atomizing roasting mechanism (5) comprises a fixed plate (52) and a tubular resistance furnace (51); a synchronous wheel (39) is fixedly connected to the outer surface of one end of the tubular resistance furnace (51); a synchronous belt (38) is sleeved on the outer surface of the synchronous wheel (39); a driving wheel (37) is fixedly connected to the outer surface of one end of the rotating column (36); and the driving wheel (37) is sleeved on the synchronous belt (38).

2. The device for preparing ultrafine nickelous oxide powder by atomization roasting method according to claim 1, characterized in that: The outer surface of the third rotating rod (48) is symmetrically fixedly connected with two protrusions (481), and the protrusions (481) are plugged into the rotating sleeve (49). The bottom end of the fourth rotating rod (491) passes through the support plate (11), and the bottom end of the fourth rotating rod (491) is fixedly connected with a stirring rod (493). The top end of the worm (43) is fixedly connected with a coupling rod (431), and the coupling rod (431) is fixedly connected to the bottom end of the first rotating rod (31). The outer surfaces of both ends of the worm (43) are rotatably connected with a third support frame (432), and the third support frame (432) is fixedly connected to the side wall of the first fixed frame (12).

3. The device for preparing ultrafine nickelous oxide powder by atomization roasting method according to claim 2, characterized in that: The worm wheel (41) is rotatably connected to a second support frame (411) on both sides, and one side of the second support frame (411) is fixedly connected to a second fixing frame (13).

4. The device for preparing ultrafine nickelous oxide powder by atomization roasting method according to claim 1, characterized in that: The top of the fixed plate (52) is fixedly connected to a limiting frame (53), the outer surface of the tubular resistance furnace (51) is fixedly connected to a rotating frame (54), the rotating frame (54) is slidably connected to the limiting frame (53), and an atomizing nozzle (55) is provided on one side of the tubular resistance furnace (51), and one end of the atomizing nozzle (55) is fixedly connected to the preparation cylinder (1).

5. A method for preparing ultrafine powder nickelous oxide by atomization roasting method, characterized in that: The device for preparing ultrafine nickelous oxide powder by atomization roasting method as described in claim 4 above is used, comprising the following steps: S1. Solution preparation: Use ionized water to prepare a solution with a concentration of 1M, add pure concentrated hydrochloric acid to adjust the pH value of the solution to 1.00-1.50 to inhibit the hydrolysis and precipitation of nickel ions; S2. Feed liquid: nickel chloride solution flows into the liquid inlet of the atomizing nozzle (55), and the compressed carrier gas enters the gas inlet of the atomizing nozzle (55) after being filtered. Different compressed gases are used as carrier gases; S3, atomization spraying: the feed liquid is fully mixed with the compressed air in the nozzle, and the feed liquid is atomized by the high-pressure gas into uniform fine droplets and sprayed into the tubular resistance furnace (51); S4, calcination: calcining the fine droplets using a tubular resistance furnace (51), and collecting nickelous oxide powder using a cyclone dust collector.

6. The method for preparing ultrafine powder nickelous oxide by atomization roasting method according to claim 5, characterized in that: After the ionized water is poured into the preparation barrel (1) in step S1, when the driving motor (14) is in operation, the worm (43) rotates accordingly, thereby driving the third rotating rod (48) to rotate, and the rotating sleeve (49) also rotates together, thereby controlling the stirring rod (493) to perform a stirring operation.

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