Carbonyl iron powder atomization pyrolysis equipment with atomizing nozzle structure

Abstract

The invention relates to the technical field of atomization devices, and discloses carbonyl iron powder atomization pyrolysis equipment with an atomization nozzle structure, the carbonyl iron powder atomization pyrolysis equipment comprises a collector, the collector is located at the bottom end of the inner wall of a pyrolysis machine and used for collecting iron powder particles, and an atomization nozzle is located above the collector. According to the invention, by arranging the adjusting piece and the blades, high-speed airflow rotates to form a special flow field, liquid hydroxyl iron is more fully mixed with gas under the action of centrifugal force and the rotating airflow after entering the flow field, and the gas can more uniformly apply acting force to liquid due to the full mixing of the gas and the liquid, so that liquid drops are further refined, and the atomization quality is improved; the edge effect that liquid drops are distributed unevenly may occur during spraying in the edge area, the liquid drops in the edge area can be distributed more evenly through rotating airflow generated by the blades, the difference between the spraying amount and the liquid drop distribution of the edge area and the center area is reduced by adjusting the motion trails of the airflow and the liquid drops, and the overall spraying uniformity is improved.

Description

Technical Field

[0001] The invention relates to the technical field of atomizing devices, and in particular to a carbonyl iron powder atomizing pyrolysis device with an atomizing nozzle structure. Background Art

[0002] Carbonyl iron powder atomization pyrolysis is an important method for preparing high-performance iron powder. Gaseous pentacarbonyl iron is sprayed into a high-temperature pyrolysis furnace through a special atomization device. Under high temperature conditions, pentacarbonyl iron rapidly decomposes to release carbon monoxide gas. At the same time, iron atoms condense in the gas phase and aggregate into tiny particles to form carbonyl iron powder. In order to efficiently disperse the liquid into tiny droplets and form a mist spray to achieve specific process requirements, the carbonyl iron powder atomization pyrolysis equipment needs to have an atomization nozzle structure in the atomization pyrolysis process.

[0003] Since the spray angle of the existing atomizing nozzle is fixed and limited, it is impossible to fully cover the pyrolysis space, resulting in no spray or very little spray in some areas, affecting the uniformity of the pyrolysis reaction. This problem is particularly prominent in large-scale pyrolysis equipment, which may lead to uneven product quality. In addition, at the edge of the spray coverage area, the spray volume and droplet distribution are quite different from those in the central area, resulting in inconsistent quality of the pyrolysis products at the edge and center. In addition, the atomizing nozzle has an edge effect radiating from the center of the nozzle, and the droplet concentration and speed are unevenly distributed. The droplet concentration in the central area is high and the speed is fast, while the opposite is true in the edge area, affecting the uniformity of the particle size of the pyrolysis products. Summary of the invention

[0004] Technical issues solved In view of the above-mentioned shortcomings of the prior art, the present invention provides a carbonyl iron powder atomization pyrolysis equipment with an atomizing nozzle structure, which can effectively solve the problem that the prior art has a fixed and limited spray angle, cannot fully cover the pyrolysis space, and affects the uniformity of the pyrolysis reaction.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a carbonyl iron powder atomization pyrolysis device with an atomization nozzle structure, comprising: Pyrolysis machine; A collector, located at the bottom of the inner wall of the pyrolysis machine, for collecting iron powder particles after pyrolysis; Atomizing nozzle, the atomizing nozzle is located above the collector, the atomizing nozzle comprises a mixing chamber detachably connected to the top of the inner wall of the pyrolysis machine, one end of the mixing chamber is provided with a liquid inlet for accessing high-speed gas, the side of the mixing chamber is provided with a gas inlet for accessing liquid carbonyl iron, one end of the mixing chamber close to the collector is provided with an inner flow tube, the other end of the inner flow tube is provided with a dispersing member for dispersing the liquid, and the inside of the mixing chamber is provided with a regulating member for dispersing and guiding the input liquid; The dispersing member comprises a fixing ring fixedly connected to the outer end of the inner flow tube, and the inner wall of the fixing ring is provided with a partition plate 1 for redispersing the droplets transmitted by the regulating member; Among them, a partition plate 2 is arranged on the outer side of the partition plate 1, and there is a dynamic change between the partition plate 2 and the partition plate 1, which can re-process the liquid sprayed from the partition plate 1.

[0006] Furthermore, the regulating member includes a blade arranged in the middle of the air inlet, and the blade rotates after the high-speed airflow is connected. A worm is fixedly connected to the other end of the blade. The worm is located directly below the liquid inlet, and the length of the worm is greater than the diameter of the liquid inlet. The hydroxyl iron liquid will collide with the worm.

[0007] Furthermore, the adjusting member also includes a guide rod fixedly connected to the other end of the worm, the other end of the guide rod is fixedly connected to the worm, the guide block located in the inner cavity of the inner flow tube adopts a conical design, and the diameter of the end away from the guide rod is smaller than the diameter of the end close to the guide rod, the other end of the guide block is fixedly connected to a positioning rod, and the other end of the positioning rod is connected to the dispersion member.

[0008] Furthermore, an inner flow channel is opened on the inner wall of the inner flow tube, the guide block is located in the inner flow channel, and the inner flow channel adopts a tapered groove design that matches the guide block.

[0009] Furthermore, a card slot is rotatably connected to the outer end of the fixing ring, a limiting slot is provided on the inner wall of the card slot, the inside of the card slot is fixedly connected to the outer wall of partition one, a nozzle one is provided on the inner wall of partition one, the inner wall of the limiting slot is meshingly connected to the outer wall of partition two, the side edge of the limiting slot is slidingly sealed with the side edge of partition two, and a fixing slot fixedly connected to the positioning rod is provided in the middle of one end of the partition one close to the inner flow tube.

[0010] Furthermore, a second nozzle is opened inside the second partition, a blocking block is fixed to the inner wall of the second nozzle, and a gear ring is fixedly connected to the outer wall of the second partition, and the gear ring is meshed and connected with the inner wall of the limiting groove.

[0011] Furthermore, the positions of the nozzles 1 and 2 correspond to each other, and the partitions 1 and 2 can be divided into three areas of inner ring, middle ring and outer ring according to the positions of the nozzles 1 and 2, and are arranged in sequence from the center of the circle to the outside according to the inner ring, middle ring and outer ring.

[0012] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention is provided with an adjusting part, and the blades cause the high-speed airflow to rotate to form a special flow field. After the liquid hydroxy iron enters the flow field, it is more fully mixed with the gas under the action of centrifugal force and the rotating airflow. The full mixing between the gas and the liquid allows the gas to exert force on the liquid more evenly, further refine the droplets, and improve the atomization quality; the edge effect of uneven droplet distribution may occur in the spraying of the edge area, and the rotating airflow generated by the blades can make the droplet distribution in the edge area more even. By adjusting the movement trajectory of the airflow and the droplets, the difference in spray volume and droplet distribution between the edge and the center area is reduced, and the uniformity of the overall spray is improved.

[0013] The present invention is provided with an inner flow tube and a dispersion piece. The guide block and the guide rod structure arranged in the inner flow tube and the mixing chamber guide the fluid to flow in a predetermined direction and speed, so that the fluid forms a more orderly flow in the flow channel, reduces the generation of turbulence and eddy currents, improves the energy utilization rate of the fluid, and further enhances the atomization effect. At the same time, the guide block guides the flow direction of the liquid to avoid local accumulation or uneven flow rate of the fluid before entering the dispersion piece, ensures that each nozzle one and nozzle two can obtain a stable and uniform fluid supply, and is conducive to improving the consistency and efficiency of atomization.

[0014] The present invention is provided with nozzle one and nozzle two, and the outlet wall surface is in a continuous corrugated shape with convex and concave portions arranged alternately. When the fluid passes through the corrugated wall surface, it will experience acceleration and deceleration processes at the convex portions and concave portions respectively, resulting in pressure fluctuations. This periodic pressure change will cause the fluid to be disturbed in both the axial and radial directions, so that the droplets will form a wider dispersion angle when leaving the nozzle, effectively reducing the agglomeration of the droplets. The outlet with a special shape will increase the contact area and friction between the fluid and the wall surface, thereby generating a greater shear force. In the process of the fluid being extruded from nozzle two, the greater shear force will help to more effectively break the carbonyl iron fluid into smaller droplets. At the same time, the difference in shear force at different positions will also cause the droplets to obtain different movement directions, further enhancing the dispersion effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 A schematic diagram of the connection structure of an atomizing nozzle according to an embodiment of the present invention; Figure 3 Schematic cross-sectional view of an atomizing nozzle according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the inner flow pipe connection structure of an embodiment of the present invention; Figure 5 It is a schematic diagram of the separation of the inner flow tube structure of the embodiment of the present invention; Figure 6 This is a schematic diagram of the distribution state of nozzle 1 and nozzle 2 according to an embodiment of the present invention; Figure 7 Schematic diagram of the structure of nozzle 2 according to an embodiment of the present invention.

[0017] The numbers in the figure represent: 1. pyrolysis machine; 2. atomizing nozzle; 21. mixing chamber; 22. liquid inlet; 23. air inlet; 25. inner flow tube; 251. inner flow channel; 26. dispersion member; 261. fixing ring; 2611. slot; 2612. limiting slot; 262. partition one; 263. nozzle one; 264. partition two; 2641. gear ring; 265. nozzle two; 2651. block; 266. fixing slot; 267. inner ring; 268. middle ring; 269. outer ring; 27. adjusting member; 271. guide rod; 272. worm; 273. blade; 275. guide block; 276. positioning rod; 3. collector. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0019] The present invention will be further described below in conjunction with the embodiments. Example

[0020] See also Figure 1-Figure 7 The present invention provides a technical solution for atomizing pyrolysis equipment of carbonyl iron powder with an atomizing nozzle structure: Figure 1 The device includes a pyrolysis machine 1, in which an atomizing nozzle 2 for atomizing liquid hydroxy iron is arranged, and a collector 3 for collecting hydroxy iron powder after atomization pyrolysis is arranged below the atomizing nozzle 2. The atomizing nozzle 2 is placed vertically in the pyrolysis machine 1, and a compressed gas storage device is connected above the pyrolysis machine 1, and a liquid hydroxy iron storage device is connected on the side of the pyrolysis machine 1.

[0021] refer to Figure 2This is a diagram of the atomizing nozzle 2 in a horizontal position. The atomizing nozzle 2 includes an air inlet 23 connected to a compressed gas storage device for receiving high-speed gas, and a liquid inlet 22 connected to a liquid hydroxy iron storage device for receiving liquid. Both the liquid inlet 22 and the air inlet 23 are located outside the mixing chamber 21, and the two are vertically arranged. The liquid entering the mixing chamber 21 through the liquid inlet 22 can move rapidly under the dual effects of gravity and high-speed gas.

[0022] In the prior art, the contact and mixing effect of high-speed airflow and liquid hydroxy iron is limited. Some liquids may not fully interact with the airflow, resulting in incomplete atomization, the appearance of larger droplets or incompletely atomized liquid, affecting the progress of the pyrolysis reaction and the quality of the product, and the liquid hydroxy iron is only broken by the impact of the high-speed airflow, and the forces acting on the liquids in different parts are relatively single and poor in uniformity, which will cause some liquids to be insufficiently broken to form larger droplets, and some liquids to be excessively broken to produce overly fine droplets. The carbonyl iron powder obtained by pyrolysis finally has a wide particle size distribution range, which is difficult to meet the application scenarios with high requirements for particle size uniformity. Therefore, the present invention is provided with a regulating member 27, which mixes the gas and liquid while they are in contact, ensuring that the liquid fully interacts with the airflow and improves the atomization effect.

[0023] like Figure 3 As shown, the regulating member 27 includes a blade 273 arranged in the middle of the air inlet 23. After the high-speed airflow is connected, the blade 273 rotates. The other end of the blade 273 is fixedly connected to a worm 272. The worm 272 is located directly below the liquid inlet 22, and the length of the worm 272 is greater than the diameter of the liquid inlet 22. The hydroxyl iron liquid will collide with the worm 272. The regulating member 27 also includes a guide rod 271 fixedly connected to the other end of the worm 272, and the other end of the guide rod 271 is fixedly connected to the worm 272. The guide block 275 located in the inner cavity of the inner flow tube 25 adopts a conical design, and the diameter of the end away from the guide rod 271 is smaller than the diameter of the end close to the guide rod 271. The other end of the guide block 275 is fixedly connected to a positioning rod 276, and the other end of the positioning rod 276 is connected to the dispersion member 26.

[0024] The air inlet 23 contacts high-speed gas, and the gas drives the blades 273 to rotate, and the blades 273 drives the worm 272 to rotate. While the worm 272 rotates, the liquid connected to the liquid inlet 22 collides with each other, and the gas and liquid are evenly mixed. The mixed fluid flows along the mixing chamber 21 and the inner flow tube 25 under the restriction of the guide rod 271 and the guide block 275. As the aperture of the inner flow channel 251 and the guide block 275 becomes smaller, the shearing effect is enhanced, and the particle size of the formed droplets gradually decreases. Then, the evenly mixed fluid with increased flow rate quickly rushes toward the dispersion element 26.

[0025] When blade 273 rotates, there is relative motion between its surface and the liquid hydroxy iron, which generates shear force. Since the linear speeds at different positions on the surface of blade 273 are different, the shear force to which the liquid hydroxy iron is subjected when it contacts different positions of blade 273 is also different. Such shear forces of different sizes can more effectively break the liquid hydroxy iron into fine droplets, so that the carbonyl iron powder obtained by pyrolysis is finer in particle size and more evenly distributed, thus meeting the strict requirements of high-end application scenarios on iron powder particle size. Blade 273 causes the high-speed airflow to rotate, forming a special flow field. After the liquid hydroxy iron enters the flow field, it is more fully mixed with the gas under the action of centrifugal force and rotating airflow. The full mixing between gas and liquid allows the gas to be more evenly distributed. Apply force to the liquid to further refine the droplets and improve the atomization quality. In the edge area, the spray may have an edge effect of uneven droplet distribution. The rotating airflow generated by the blade 273 can make the droplet distribution in the edge area more even. By adjusting the movement trajectory of the airflow and the droplets, the difference in spray volume and droplet distribution between the edge and the center area is reduced, the uniformity of the overall spray is improved, and the quality of the pyrolysis product is made more stable. In actual production, the gas pressure may fluctuate, which will affect the atomization effect. The blade 273 has a certain inertia. When the gas pressure changes instantly, the blade 273 will not change the rotation speed immediately due to inertia, thereby buffering the effect of pressure fluctuations on liquid atomization to a certain extent. It can maintain a relatively stable airflow state, ensuring that the liquid hydroxy iron can be atomized relatively stably under different pressure conditions, and improving the adaptability of the atomization process to pressure fluctuations; the rotation of the blade 273 causes the airflow near the disperser 26 to form a rotating flow, and this rotating airflow can prevent the deposition and aggregation of impurity particles at the nozzle outlet to a certain extent. When there are a small amount of impurities in the liquid hydroxy iron, the rotating airflow can blow the impurity particles away from the disperser 26 area, reduce the possibility of blockage, and ensure the continuity and stability of the atomization process.

[0026] Since the spray angle of the existing atomizing nozzle 2 is fixed and limited, it is unable to fully cover the pyrolysis space, resulting in no spray or very little spray in some areas, affecting the uniformity of the pyrolysis reaction. This problem is particularly prominent in large-scale pyrolysis equipment, which may lead to uneven product quality. In addition, at the edge of the spray coverage area, the spray volume and droplet distribution are quite different from those in the central area, resulting in inconsistent quality of the pyrolysis products at the edge and the center. In addition, the atomizing nozzle 2 has an edge effect radiating outward from the center of the nozzle, and the droplet concentration and speed are unevenly distributed. The droplet concentration in the central area is high and the speed is fast, while the edge area is the opposite, affecting the uniformity of the particle size of the pyrolysis products. Therefore, the present invention is provided with an inner flow tube 25 and a dispersion member 26 to ensure that the sprayed droplets can fully cover the pyrolysis space.

[0027] refer to Figure 3 and Figure 4The inner wall of the inner flow tube 25 is provided with an inner flow channel 251, the guide block 275 is located in the inner flow channel 251, and the inner flow channel 251 adopts a conical groove design matching the guide block 275. The dispersion member 26 includes a fixed ring 261 fixedly connected to the outer end of the inner flow tube 25, and the inner wall of the fixed ring 261 is provided with a partition 262 for redispersing the droplets transmitted by the regulating member 27. The carbonyl iron fluid mixed by the worm 272 can enter the dispersion member 26 after being evenly distributed in the guide block 275. The guide block 275 and the guide rod 271 structure are arranged to guide the fluid to flow in a predetermined direction and speed, so that the fluid forms a more orderly flow in the flow channel, reduces the generation of turbulence and eddy currents, improves the energy utilization rate of the fluid, and further enhances the atomization effect. At the same time, the guide block 275 guides the flow direction of the liquid to avoid local accumulation or uneven flow rate of the fluid before entering the dispersion element 26, ensuring that each nozzle 1 263 and nozzle 2 265 can obtain a stable and uniform fluid supply, which is beneficial to improving the consistency and efficiency of atomization.

[0028] refer to Figure 4 , Figure 5 and Figure 6 The nozzle 263 is provided on the inner wall of the partition 1 262, the outer end of the fixing ring 261 is rotatably connected with a slot 2611, the inner wall of the slot 2611 is provided with a limiting slot 2612, the inside of the slot 2611 is fixedly connected with the outer wall of the partition 1 262, the inner wall of the limiting slot 2612 is meshed with the outer wall of the partition 2 264, the side of the limiting slot 2612 is slidably sealed with the side of the partition 2 264, the middle part of the end of the partition 1 262 close to the inner flow tube 25 is provided with a fixing slot 266 fixedly connected with the positioning rod 276, and the inside of the partition 2 264 is provided with a nozzle 263, the outer wall of the limiting slot 2612 is meshed with the outer wall of the partition 2 264, and the side of the limiting slot 2612 is slidably sealed with the side of the partition 2 264. Nozzle 265, a block 2651 is fixed on the inner wall of the nozzle 265, a toothed ring 2641 is fixed on the outer wall of the partition 264, the toothed ring 2641 is meshed with the inner wall of the limiting groove 2612, the positions of the nozzle 1 263 and the nozzle 2 265 correspond to each other, the partition 1 262 and the partition 2 264 can be divided into three areas of inner ring 267, middle ring 268 and outer ring 269 according to the different positions of the nozzle 1 263 and the nozzle 2 265, and are arranged from the center of the circle to the outside in order of inner ring 267, middle ring 268 and outer ring 269.

[0029] The rotation of the guide block 275 drives the positioning rod 276 to rotate, and the rotation of the positioning rod 276 drives the slot 2611 fixed thereto to rotate under the restriction of the fixing ring 261, and the rotation of the slot 2611 drives the partition 2 264 meshing therewith through the gear ring 2641 to rotate. The partition 2 264 and the limiting groove 2612 have different numbers of teeth, and the rotation speed of the partition 2 264 is less than the rotation speed of the limiting groove 2612. The rotation of the partition 2 264 drives the nozzle 2 265 to rotate, and the rotation of the nozzle 2 265 drives the blocking block 2651 to rotate.

[0030] The circular outlet shape of nozzle 1 263 can provide a more symmetrical flow velocity distribution, so that the atomized droplets are more evenly dispersed; nozzle 2 265 is set to an outlet shape with a block 2651, and the fluid dynamics characteristics of the liquid leaving the outlet are changed, so that the droplets have better dispersion when leaving the nozzle, reducing the probability of mutual collision and agglomeration; the outlet wall is continuously corrugated, with convex and concave arranged alternately. When the fluid passes through the corrugated wall, it will experience acceleration and deceleration processes at the convex and concave respectively, resulting in pressure fluctuations. This periodic pressure change will cause the fluid to be disturbed in both the axial and radial directions, so that the droplets will form a wider dispersion angle when leaving the nozzle, effectively reducing the agglomeration between the droplets; when the carbonyl iron fluid flows through the nozzle outlet, a boundary layer will be formed on the wall. When encountering a convex or concave, the fluid will break the outlet. The uniform velocity distribution at the protrusions or grooves causes the fluid to disperse in different directions when leaving the nozzle, thereby making the droplets spread out more evenly and reducing agglomeration. According to the principles of fluid mechanics, the flow rate is inversely proportional to the cross-sectional area of ​​the flow channel, while the pressure is related to the flow rate. Therefore, near the protrusions or grooves, the flow rate and pressure of the fluid will change, forming a local pressure difference. This pressure difference will exert a lateral force on the fluid, causing the fluid to have different movement directions when leaving the nozzle, thereby promoting the dispersion of the droplets. The special shape of the outlet will increase the contact area and friction between the fluid and the wall, thereby generating a greater shear force. In the process of the fluid being squeezed out of the nozzle 265, the greater shear force helps to more effectively break the carbonyl iron fluid into smaller droplets. At the same time, the difference in shear force at different positions will also cause the droplets to obtain different movement directions, further enhancing the dispersion effect.

[0031] The layout of the liquid outlet holes is optimized by the inner ring 267, the middle ring 268, and the outer ring 269. The inner ring 267 appropriately reduces the hole spacing in the area close to the center of the circle and increases the density of the liquid outlet holes to improve the atomization intensity in the central area; the outer ring 269 appropriately increases the hole spacing in the circumferential edge area to avoid uneven atomization caused by edge effects. This non-equidistant arrangement can flexibly adjust the atomization effect of different areas according to actual needs, thereby improving the atomization efficiency of the entire circular array. According to the characteristics of the carbonyl iron fluid and the parameters of the atomizing gas, the spacing between the liquid outlet holes is accurately calculated and adjusted. Smaller spacing allows the fluids to interact faster after being ejected and promote atomization, but too small spacing may cause mutual interference between the fluids and affect the atomization effect; larger spacing may make the atomization insufficient. Through experiments and simulations, the optimal hole spacing is found so that the fluids ejected from adjacent liquid outlet holes can work together to improve the atomization efficiency. Adopt non-equidistant arrangement: try non-equidistant liquid outlet hole arrangement in the circular array.

[0032] Since there may be solid impurity particles in the carbonyl iron raw material, such as unreacted iron filings, other metal oxides, etc., these impurities are ejected from the nozzle 263 along with the fluid. Since the nozzle aperture is small, impurities are easily accumulated here, eventually leading to blockage. The existing inner aperture size and position are fixed, and there is no self-cleaning structure. With long-term blockage, the aperture is uneven, or the surface of the internal flow channel is rough, which will cause the flow rate of carbonyl iron to be inconsistent when it is ejected, so that the particle size of the iron powder after atomization is quite different, and the cleaning of the nozzle requires shutdown for post-processing. The atomization pyrolysis production line cannot produce carbonyl iron powder normally, which will cause production loss. Therefore, the present invention is provided with a partition 262 outside the partition 262. 64, there are dynamic changes between partition one 262 and partition two 264, and nozzle one 263 and nozzle two 265 matched therewith are also undergoing dynamic changes. The rotation speed of partition two 264 is slow, and it can form shielding at different positions on the outside of nozzle one 263. The impurities blocked by the block 2651 at the last moment will not be blocked by the block 2651 at the next moment, and the impurities are discharged under the action of the fluid and the regulating member 27. If part of them are still blocked at the block 2651, as the partition two 264 rotates, the corresponding block 2651 gradually rotates from the bottom to the top. At this time, in addition to the flow force and the impact force of the regulating member 27, the impurities are also affected by gravity and can be effectively discharged from the nozzle two 265.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A carbonyl iron powder atomization pyrolysis device with an atomization nozzle structure, characterized in that: include: Pyrolysis machine (1); A collector (3), the collector (3) being located at the bottom end of the inner wall of the pyrolysis machine (1) and being used for collecting iron powder particles after pyrolysis; an atomizing nozzle (2), the atomizing nozzle (2) being located above the collector (3), the atomizing nozzle (2) comprising a mixing chamber (21) detachably connected to the top of the inner wall of the pyrolysis machine (1), a liquid inlet (22) for receiving high-speed gas being provided at one end of the mixing chamber (21), a gas inlet (23) for receiving liquid carbonyl iron being provided at the side of the mixing chamber (21), an inner flow tube (25) being provided at one end of the mixing chamber (21) close to the collector (3), a dispersing member (26) for dispersing liquid being provided at the other end of the inner flow tube (25), and an adjusting member (27) for dispersing and guiding the input liquid being provided inside the mixing chamber (21); The dispersing member (26) comprises a fixing ring (261) fixedly connected to the outer end of the inner flow tube (25), and the inner wall of the fixing ring (261) is provided with a partition plate 1 (262) for redispersing the droplets transmitted by the regulating member (27); Partition 2 (264) is disposed outside partition 1 (262), and there is a dynamic change between partition 2 (264) and partition 1 (262), which can re-process the liquid sprayed from partition 1 (262).

2. The carbonyl iron powder atomization pyrolysis equipment with an atomization nozzle structure according to claim 1, characterized in that: The regulating member (27) comprises a blade (273) arranged in the middle of the air inlet (23); the blade (273) rotates after the high-speed airflow is connected; a worm (272) is fixedly connected to the other end of the blade (273); the worm (272) is located directly below the liquid inlet (22); and the length of the worm (272) is greater than the diameter of the liquid inlet (22); the hydroxyl iron liquid will collide with the worm (272).

3. The carbonyl iron powder atomization pyrolysis equipment with an atomization nozzle structure according to claim 2, characterized in that: The regulating member (27) further comprises a guide rod (271) fixedly connected to the other end of the worm (272); the other end of the guide rod (271) is fixedly connected to the worm (272); a guide block (275) located in the inner cavity of the inner flow tube (25) is of conical design, and the diameter of the end away from the guide rod (271) is smaller than the diameter of the end close to the guide rod (271); the other end of the guide block (275) is fixedly connected to a positioning rod (276); the other end of the positioning rod (276) is connected to the dispersion member (26).

4. The carbonyl iron powder atomization pyrolysis equipment with an atomization nozzle structure according to claim 3, characterized in that: An inner flow channel (251) is provided on the inner wall of the inner flow tube (25), the guide block (275) is located in the inner flow channel (251), and the inner flow channel (251) adopts a conical groove design that matches the guide block (275).

5. The carbonyl iron powder atomization pyrolysis equipment with an atomization nozzle structure according to claim 1, characterized in that: The outer end of the fixing ring (261) is rotatably connected to a slot (2611), the inner wall of the slot (2611) is provided with a limiting slot (2612), the interior of the slot (2611) is fixedly connected to the outer wall of the partition plate 1 (262), the inner wall of the partition plate 1 (262) is provided with a nozzle 1 (263), the inner wall of the limiting slot (2612) is meshingly connected to the outer wall of the partition plate 2 (264), the side of the limiting slot (2612) is slidably sealed with the side of the partition plate 2 (264), and the middle part of one end of the partition plate 1 (262) close to the inner flow tube (25) is provided with a fixing slot (266) fixedly connected to the positioning rod (276).

6. The carbonyl iron powder atomization pyrolysis equipment with an atomization nozzle structure according to claim 5, characterized in that: The second partition plate (264) is provided with a second nozzle (265) inside, a blocking block (2651) is fixed to the inner wall of the second nozzle (265), a toothed ring (2641) is fixedly connected to the outer wall of the second partition plate (264), and the toothed ring (2641) is meshedly connected to the inner wall of the limiting groove (2612).

7. The carbonyl iron powder atomization pyrolysis equipment with an atomization nozzle structure according to claim 6, characterized in that: The positions of the nozzle 1 (263) and the nozzle 2 (265) correspond to each other, and the partition 1 (262) and the partition 2 (264) can be divided into three areas, namely, an inner ring (267), a middle ring (268) and an outer ring (269), according to the positions of the nozzle 1 (263) and the nozzle 2 (265). The inner ring (267), the middle ring (268) and the outer ring (269) are arranged in sequence from the center of the circle to the outside.

Images