CN217246791U

CN217246791U - Automatic change superfine powder preparation facilities

Info

Publication number: CN217246791U
Application number: CN202220216035.9U
Authority: CN
Inventors: 张呈祥; 张光睿; 赵长玉; 李璐; 王安丽
Original assignee: Tianjin Baogang Rare Earth Research Institute Co Ltd
Current assignee: Tianjin Baogang Rare Earth Research Institute Co Ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-08-23
Anticipated expiration: 2032-01-26

Abstract

The utility model relates to a powder preparation technical field specifically is an automatic change superfine powder preparation facilities, be equipped with microwave generating device's high temperature storehouse including the outer wall, the top has the hopper of feed inlet and locates the atomizer between high temperature storehouse and the hopper, atomizer includes the vertical spray tube that runs through the setting at high temperature storehouse top, inlet pipe and hopper intercommunication are passed through to the spray tube top, and the inlet pipe is located the inside one end of hopper and is equipped with the liquid pump, and the spray tube extends to the inside one end in high temperature storehouse and installs the atomizer that sprays direction up, and the atomizer locates high 1/3-2/3 position department in the high temperature storehouse. The utility model discloses solution in the well stocker passes through the atomizer among the atomizer and sprays up in the high temperature storehouse, with prior art with solution spray down in the high temperature reaction cavity compare, increased the time that solution stops in the high temperature storehouse to make the evaporation that moisture in the solution can be abundant, in order to obtain the powder product of better quality.

Description

Automatic change superfine powder preparation facilities

Technical Field

The utility model relates to a powder preparation technical field specifically is an automatic change superfine powder preparation facilities.

Background

The preparation method of the composite powder through spray pyrolysis is a powder preparation method which comprises the steps of preparing precursor solution from metal salts according to the stoichiometric ratio required by the preparation of the composite powder, atomizing the precursor solution, carrying the atomized precursor solution into a high-temperature reaction cavity through carrier gas, enabling fog drops to rapidly move in the cavity, instantly completing a series of physical and chemical processes of solvent evaporation and solute precipitation to form solid particles, drying the particles, thermally decomposing the particles, sintering the particles and the like.

The patent that has publication number CN206240095U discloses a device of preparation superfine composite powder, the utility model discloses the complementary effect of advantage that has combined spray pyrolysis and microwave heating, the rapid draing of spraying, decompose and sintering combine microwave rapid heating up, the even and non-thermal effect's of heating characteristics, be favorable to preparing superfine, the nanocrystalline, the sphericity is high, high purity, the component distributes evenly, the granularity distribution interval is narrow, the sinterability is good, safe and reliable, can the compound powder of preparation of industrialization volume production, however, atomizer sets up top and jet direction in the high temperature reaction cavity down in the device, the solution that the blowout came like this can descend under self action of gravity fast, and can leave the high temperature reaction cavity under the suction of fluid delivery pump fast, thereby the phenomenon that partial solution can't evaporate completely appears.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides an automatic change superfine powder preparation facilities can increase the time that solution stops in high temperature storehouse, guarantees the abundant evaporation of moisture in the solution, when having solved current device thermal decomposition, can appear the problem of the unable complete evaporation of moisture in the partial solution.

(II) technical scheme

In order to realize the above-mentioned time that can increase solution and stop in high temperature storehouse, guarantee the purpose of the abundant evaporation of moisture in the solution, the utility model provides a following technical scheme: an automatic superfine powder preparation device comprises a high-temperature bin with a microwave generating device arranged on the outer wall, a material storage bin with a feeding hole at the top, and a spraying device arranged between the high-temperature bin and the material storage bin, wherein the spraying device comprises a spray pipe vertically penetrating the top of the high-temperature bin, the top end of the spray pipe is communicated with the material storage bin through a feed pipe, a liquid pump is arranged at one end of the feed pipe positioned in the material storage bin, an atomizing spray head with an upward spraying direction is installed at one end of the spray pipe extending to the inside of the high-temperature bin, and the atomizing spray head is arranged at the 1/3-2/3 position of the high-temperature bin.

Optionally, the top end of the spray pipe movably penetrates through the high-temperature bin, a driving device for driving the spray pipe to rotate is arranged at the top of the high-temperature bin, the atomizing nozzle is fixed to the side wall of the spray pipe through the transverse pipe, and the fan blades are fixedly connected to the bottom end of the spray pipe and located below the atomizing nozzle.

Optionally, the driving device comprises a driving bin arranged at the top of the high-temperature bin, the top end of the spray pipe movably penetrates through the driving bin and is movably connected with the inlet pipe through a movable joint, blades are arranged on the outer wall of the spray pipe in the driving bin, one side of the driving bin is communicated with the top of the high-temperature bin through an air inlet pipe, and an exhaust pipe is arranged on the other side of the driving bin.

Optionally, one end of the exhaust pipe, which is far away from the driving cabin, is arranged to penetrate through the stocker, and a portion of the exhaust pipe, which is located inside the stocker, is a spiral pipe.

Optionally, the number of the atomizing spray heads is two, and the two atomizing spray heads are symmetrically arranged on two sides of the spray pipe through the transverse pipes.

Optionally, the device further comprises a bag dust collector and a powder collecting device arranged at a discharge outlet at the bottom of the bag dust collector, and the top end of the bag dust collector is communicated with the bottom end of the high-temperature bin through a fluid delivery pump.

(III) advantageous effects

Compared with the prior art, the utility model provides an automatic change superfine powder preparation facilities possesses following beneficial effect:

1. the utility model discloses a setting up the atomizer who contains spray tube, inlet pipe, liquid pump and atomizer, and atomizer spray direction up, during pyrolysis, solution in the stocker sprays upwards in the high temperature storehouse through atomizer among the atomizer, compare solution with spraying downwards in the high temperature reaction cavity in the prior art, upwards spray can increase the time that solution stays in the high temperature storehouse to make the evaporation that moisture in the solution can be abundant, in order to obtain the powder product of better quality;

2. the utility model arranges the fan blades blowing upwards in the high-temperature chamber, and the fan blades drive the airflow at the bottom of the high-temperature chamber to flow upwards, thereby not only slowing down the falling speed of the solution in the high-temperature chamber, but also making the solution heated more uniformly, and further ensuring the water in the solution to be fully evaporated;

3. the utility model discloses a setting contains the drive arrangement of drive storehouse, blade, intake pipe and blast pipe, and this drive arrangement utilizes the flabellum rotation of steam promotion drive spray tube bottom, and need not to establish motor drive in addition for the steam that produces in the powder preparation can obtain make full use of, has reduced the consumption of the energy.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the top-view cross-sectional structure of the driving chamber of the present invention.

In the figure: 1. a high-temperature bin; 2. a stocker; 3. a feeding pipe; 4. a nozzle; 5. an atomizing spray head; 6. a fan blade; 7. a driving bin; 8. a blade; 9. an air inlet pipe; 10. an exhaust pipe; 11. a spiral tube; 12. a feed inlet; 13. a microwave generating device; 14. a bag dust collector; 15. a fluid delivery pump; 16. a powder collecting device; 17. a transverse tube; 18. and (6) a liquid pump.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example (b): referring to fig. 1 to fig. 2, an embodiment of the present invention provides a technical solution: an automatic superfine powder preparation device comprises a high-temperature chamber 1 with a microwave generating device 13 on the outer wall, a hopper 2 with a feed inlet 12 on the top and an atomizing device arranged between the high-temperature chamber 1 and the hopper 2, wherein the atomizing device comprises a spray pipe 4 vertically penetrating the top of the high-temperature chamber 1, the top end of the spray pipe 4 is communicated with the hopper 2 through a feed pipe 3, a liquid pump 18 is arranged at one end of the feed pipe 3 positioned in the hopper 2, an atomizing nozzle 5 with an upward spraying direction is arranged at one end of the spray pipe 4 extending into the high-temperature chamber 1, the atomizing nozzle 5 is arranged at the 1/3-2/3 position of the high-temperature chamber 1, a solution in the hopper 2 is upwards sprayed in the high-temperature chamber 1 through the atomizing nozzle 5 in the atomizing device, compared with the prior art that the solution is downwards sprayed in a high-temperature reaction cavity, the upwards spraying can increase the staying time of the solution in the high-temperature chamber 1, so that the water in the solution can be fully evaporated to obtain powder products with better quality.

For further increase solution dwell time in high temperature storehouse 1 and guarantee solution thermally equivalent, on the basis of above-mentioned embodiment, high temperature storehouse 1 is run through in the activity of 4 tops of spray tube of this embodiment, 1 top in high temperature storehouse is equipped with drive spray tube 4 pivoted drive arrangement, atomizer 5 is fixed with the lateral wall of spray tube 4 through violently managing 17, 4 bottom fixedly connected with flabellum 6 of spray tube that are located atomizer 5 below, when flabellum 6 rotates, flabellum 6 drives 1 bottom air current upflow in high temperature storehouse, not only slowed down the falling velocity of solution in high temperature storehouse 1, and make the solution be heated more evenly, further guarantee the abundant evaporation of moisture in the solution.

In order to utilize the kinetic energy of the steam in the movable bin and reduce the energy consumption, on the basis of the above embodiment, the driving device of the embodiment comprises a driving bin 7 arranged at the top of the high-temperature bin 1, the top end of the spray pipe 4 movably penetrates through the driving bin 7 and is movably connected with the feed pipe 3 through a movable joint, the outer wall of the spray pipe 4 in the driving bin 7 is provided with a blade 8, one side of the driving bin 7 is communicated with the top of the high-temperature bin 1 through an air inlet pipe 9, the other side of the driving bin 7 is provided with an exhaust pipe 10, the steam formed by heating the solution in the high-temperature bin 1 enters the driving bin 7 through the air inlet pipe 9, the blade 8 in the driving bin 7 is pushed by the steam to rotate, so as to drive the spray pipe 4 and the fan blades 6 at the bottom of the spray pipe 4 to rotate, and no additional motor drive is needed, so that the steam generated in the powder preparation can be fully utilized.

In order to fully utilize the heat energy in the steam in the movable bin, in addition to the above embodiments, one end of the exhaust pipe 10 of the present embodiment, which is far away from the driving bin 7, is arranged to penetrate through the material storage 2, the part of the exhaust pipe 10, which is positioned inside the material storage 2, is a spiral pipe 11, and when the steam is exhausted through the exhaust pipe 10 on the driving bin 7, the heat energy in the steam is transferred to the solution in the material storage 2 through the spiral pipe 11, so that the solution in the material storage 2 is preheated, and further the energy conversion and utilization are realized.

In order to enable the solution to be uniformly sprayed in the high-temperature chamber 1 for thermal decomposition, on the basis of the above embodiment, the number of the atomizing nozzles 5 in the embodiment is two, the two atomizing nozzles 5 are symmetrically installed on two sides of the spray pipe 4 through the transverse pipe 17, and the driving device drives the atomizing nozzles 5 to rotate around the spray pipe 4 while driving the spray pipe 4 to rotate, so that the atomizing nozzles 5 can uniformly spray the solution in the high-temperature chamber 1, and the thermal decomposition efficiency of the solution is improved.

In order to facilitate the collection of the powder product, on the basis of the above embodiment, the embodiment further includes a bag dust collector 14 and a powder collecting device 16 disposed at a discharge outlet at the bottom of the bag dust collector 14, the top end of the bag dust collector 14 is communicated with the bottom end of the high temperature bin 1 through a fluid delivery pump 15, and the fluid delivery pump 15 pumps the powder product formed by the precipitation in the high temperature bin 1 to the bag dust collector 14 and the powder collecting device 16 for collection.

The working principle is as follows: firstly, a prepared precursor solution is placed in a material storage device 2, then an external gas generating device introduces the atmosphere adaptive to the powder into a high-temperature chamber 1, a microwave generating device 13 is opened to heat the high-temperature chamber 1, finally, the precursor solution is pumped into a spray pipe 4 through a liquid pump 18 and is sprayed upwards in the high-temperature chamber 1 by an atomizing nozzle 5 at the bottom of the spray pipe 4, fog drops form the obtained powder product under the high-temperature condition, meanwhile, high-temperature steam generated by solution evaporation enters a driving chamber 7 through an air inlet pipe 9, the high-temperature steam drives a blade 8 in the driving chamber 7 to rotate when passing through the driving chamber 7, the blade 8 drives the spray pipe 4, the atomizing nozzle 5 and a fan blade 6 to rotate, the rotation of the fan blade 6 slows down the falling speed of the solution in the high-temperature chamber 1, so that the moisture in the solution can be fully evaporated, the high-temperature steam in the driving chamber 7 is finally discharged through an exhaust pipe 10 on the driving chamber 7, when the high-temperature steam in the exhaust pipe 10 passes through the material storage device 2, the solution in the material storage device 2 can be preheated, so that the conversion and utilization of energy are realized, and the powder product in the high-temperature bin 1 is finally conveyed to the cloth bag dust collector 14 and the powder collecting device 16 through the fluid conveying pump 15 for collection.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An automatic change superfine powder preparation facilities which characterized in that: including high temperature storehouse (1) that the outer wall is equipped with microwave generating device (13), the top have hopper (2) of feed inlet (12) and locate high temperature storehouse (1) with atomizer between hopper (2), atomizer is including vertical through setting up spray tube (4) at high temperature storehouse (1) top, spray tube (4) top is passed through inlet pipe (3) and hopper (2) intercommunication, just inlet pipe (3) are located the inside one end of hopper (2) is equipped with liquid pump (18), spray tube (4) extend to spray direction up atomizer (5) are installed to the inside one end in high temperature storehouse (1), atomizer (5) are located 1/3-2/3 position department of high temperature storehouse (1) internal height.

2. The automatic superfine powder preparation device of claim 1, wherein: spray tube (4) top activity runs through high temperature storehouse (1), high temperature storehouse (1) top is equipped with the drive spray tube (4) pivoted drive arrangement, atomizer (5) through violently manage (17) with the lateral wall of spray tube (4) is fixed, is located atomizer (5) below spray tube (4) bottom fixedly connected with flabellum (6).

3. The automatic superfine powder preparation device of claim 2, wherein: drive arrangement is including locating drive storehouse (7) at high temperature storehouse (1) top, spray tube (4) top activity runs through drive storehouse (7) and through the movable joint with inlet pipe (3) loose joint is located in drive storehouse (7) spray tube (4) outer wall is equipped with blade (8), drive storehouse (7) one side with through intake pipe (9) intercommunication between high temperature storehouse (1) top, drive storehouse (7) opposite side is equipped with blast pipe (10).

4. The automatic superfine powder preparation device of claim 3, wherein: one end of the exhaust pipe (10) far away from the driving bin (7) penetrates through the stocker (2), and the part of the exhaust pipe (10) positioned inside the stocker (2) is a spiral pipe (11).

5. The automated apparatus for producing ultrafine powder according to any one of claims 2 to 4, wherein: the number of the atomizing spray nozzles (5) is two, and the two atomizing spray nozzles (5) are symmetrically arranged on two sides of the spray pipe (4) through the transverse pipes (17).

6. The automatic superfine powder preparation device of claim 1, wherein: the high-temperature bin is characterized by further comprising a bag dust collector (14) and a powder collecting device (16) arranged at a discharge outlet at the bottom of the bag dust collector (14), wherein the top end of the bag dust collector (14) is communicated with the bottom end of the high-temperature bin (1) through a fluid conveying pump (15).