CN114535583A - Production method of nitrogen atomized aluminum powder - Google Patents
Production method of nitrogen atomized aluminum powder Download PDFInfo
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- CN114535583A CN114535583A CN202210106327.1A CN202210106327A CN114535583A CN 114535583 A CN114535583 A CN 114535583A CN 202210106327 A CN202210106327 A CN 202210106327A CN 114535583 A CN114535583 A CN 114535583A
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 166
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 72
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000000889 atomisation Methods 0.000 claims abstract description 54
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 33
- 238000001914 filtration Methods 0.000 claims abstract description 26
- 229910001873 dinitrogen Inorganic materials 0.000 claims abstract description 22
- 238000011084 recovery Methods 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000004140 cleaning Methods 0.000 claims abstract description 18
- 238000005192 partition Methods 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 12
- 239000004411 aluminium Substances 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 239000000498 cooling water Substances 0.000 claims description 3
- 238000009700 powder processing Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 229910001586 aluminite Inorganic materials 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 238000009689 gas atomisation Methods 0.000 claims 1
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 239000004744 fabric Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000009690 centrifugal atomisation Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009688 liquid atomisation Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/26—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies rotatable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/045—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by other means than ball or jet milling
- B22F2009/046—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by other means than ball or jet milling by cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0832—Handling of atomising fluid, e.g. heating, cooling, cleaning, recirculating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0896—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid particle transport, separation: process and apparatus
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Geometry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a production method of nitrogen atomized aluminum powder, which comprises an atomization box and a collection box, wherein a processing box is arranged on the upper side of the atomization box, the collection box is fixed on the front side of the atomization box, a turntable is rotatably sleeved at the part, close to the right side, in the atomization box, a driving motor is fixed in the middle of the right side of the atomization box, and an output shaft of the driving motor penetrates through the atomization box; nitrogen is pumped by the air pump, aluminum liquid is introduced into the atomizing nozzle through the aluminum liquid pipe, the aluminum liquid and the nitrogen are mixed and then are sprayed out from the atomizing nozzle to be atomized to form aluminum powder, the nitrogen and the aluminum powder enter the collecting box through the first connecting pipe to be recovered, and the recovery of the aluminum powder and the cyclic utilization of the nitrogen are realized; the nitrogen gas in the second connecting pipe passes through the outer filter screen after entering the lowest side part of the filtering rotary drum, so that the nitrogen gas flows to the outside from the inner side of the outer filter screen, the aluminum powder adhered to the outer side of the outer filter screen is blown to the cleaning pipe, and the nitrogen gas enters the collecting box through the first connecting pipe, so that the self-cleaning of the filtering rotary drum is realized.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a production method of nitrogen atomized aluminum powder.
Background
The production process of the aluminum powder mainly comprises a double-flow atomization method, a centrifugal atomization method, a vacuum atomization method, an ultrasonic atomization method, a multi-stage atomization method, a rapid cooling and ball milling method and the like, at present, a nitrogen atomization method is mostly adopted for the production of the aluminum powder, the nitrogen atomization method needs a large amount of nitrogen, wastes the nitrogen,
the micro aluminum powder is widely applied in the fields of war industry, aerospace, chemical industry, metallurgy, building materials and the like, the market demand is large, the market prospect is very wide, more and more engineering technicians pay attention to the production of the micro aluminum powder, the nitrogen is high in cost, if the nitrogen cannot be recycled, the waste of the nitrogen is caused, the normal cost is increased, Chinese patent CN21459205U discloses a nitrogen circulating collector for producing nitrogen atomized spherical aluminum powder, the nitrogen is filtered by a filter cloth body to realize the recycling of the nitrogen, but after long-time use, along with the increase of the aluminum powder aggregation amount on the filter cloth body, the permeability of the filter cloth body is poor, the production efficiency of the aluminum powder is influenced, the regular cleaning is time-consuming and labor-consuming, in addition, Chinese patent CN214555054U discloses an aluminum water nitrogen atomizing device for producing the aluminum powder, the cooling temperature can be reduced by arranging a cooling water pipe, the atomized aluminum powder is quickly cooled to quickly reach a stable state, but the atomized aluminum powder is adhered to the filter screen, the filter screen also needs to be cleaned regularly or replaced, time and labor are wasted,
therefore, in order to reduce the frequency of replacing the filter screen, the shortcomings of the prior art need to be improved.
Disclosure of Invention
In view of the above, the present invention provides a method for producing nitrogen-atomized aluminum powder to solve the above problems.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a nitrogen atomization aluminum powder device comprises an atomization box and a collection box, wherein a processing box is arranged on the upper side of the atomization box, the processing box is communicated with the upper side of the atomization box, the collection box is fixed on the front side of the atomization box, a turntable is rotatably sleeved on the right side part in the atomization box, a driving motor is fixed in the middle of the right side of the atomization box, an output shaft of the driving motor penetrates through the atomization box, the output shaft of the driving motor is fixedly connected with the middle of the turntable, an annular filtering rotary drum is arranged on the left side of the turntable, a horizontal nitrogen recovery pipe is arranged in the atomization box close to the upper side part, the right end of the nitrogen recovery pipe is sealed, the left end port of the nitrogen recovery pipe penetrates out of the atomization box, a horizontal cleaning pipe is arranged in the atomization box close to the lower side part, the right end of the cleaning pipe is sealed, a plurality of atomization nozzles are uniformly distributed in the processing box, and the spraying ends of the atomization nozzles are vertically downward, the upper end of the atomizing nozzle penetrates out of the processing box, and the side wall part of the atomizing nozzle close to the upper end is communicated with an aluminum liquid pipe which is used for supplying aluminum liquid.
The filter drum is composed of an inner filter screen and an outer filter screen which are concentrically distributed, twelve partition plates are annularly distributed between the inner filter screen and the outer filter screen, the partition plates divide the filter drum into twelve cavities, the inner edge of each partition plate is fixedly connected with the inner filter screen, the outer edge of each partition plate is fixedly connected with the outer filter screen, the left end and the right end of the filter drum close to the upper side are blocked by atomizing boxes, the left end of the filter drum close to the lower side is blocked by the atomizing boxes, through holes are uniformly distributed on the left side wall and the right side wall of each atomizing box, the through holes on the left side wall of each atomizing box are communicated with a first connecting pipe, the through holes on the right side wall of each atomizing box are communicated with a second connecting pipe, the first connecting pipe is communicated with the left side of the collecting box, the second connecting pipe is communicated with the right end port of the collecting box, the second connecting pipe is communicated with a third connecting pipe, and the third connecting pipe is horizontally arranged above the atomizing spray head, and the third connecting pipe is communicated with the atomizing spray head.
Preferably, nitrogen gas is stored in the collecting box, an air pump is fixed in the collecting box, a filter screen is arranged at the air inlet of the air pump, aluminum powder in the collecting box is prevented from entering the air pump, and an air outlet of the air pump is communicated with the second connecting pipe.
Preferably, outer filter screen mesh diameter is greater than inner filter screen mesh diameter, utilizes outer filter screen to filter from atomizer spun aluminium powder, avoids a large amount of large granule aluminium powders to enter into and filters the rotary drum, utilizes inner filter screen to filter the aluminium powder in the rotary drum simultaneously, prevents that the aluminium powder from entering nitrogen gas recovery tube, avoids having the aluminium powder in the nitrogen gas of retrieving.
Preferably, the side wall evenly distributed has the through-hole on the nitrogen gas recovery pipe, and the nitrogen gas of being convenient for gets into the recovery pipe through interior filter screen, retrieves nitrogen gas.
Preferably, the side wall evenly distributed has the through-hole on the clearance pipe, and the nitrogen gas gets into the clearance pipe through outer filter screen in the filter drum of being convenient for, blows in the aluminium powder of adhesion on outer filter screen in the clearance pipe and retrieves.
Preferably, a cooling pipe is sleeved at the connecting part of the second connecting pipe and the third connecting pipe, and the cooling pipe is used for cooling nitrogen, so that when the nitrogen is contacted with aluminum liquid, aluminum liquid atomization is accelerated to form aluminum powder.
The invention has the beneficial effects that:
1. according to the invention, the large-particle aluminum powder which is just sprayed out from the atomizing nozzle and is completely cooled and formed is cut by utilizing the mesh edge of the outer filter screen, so that the aluminum powder particles produced by processing are all smaller than the mesh aperture of the outer filter screen, and the quality of the produced aluminum powder is improved;
2. the aluminum powder is retained in the filtering rotary drum through the separation of the inner filter screen, so that the aluminum powder is separated from the nitrogen, the separated nitrogen enters the nitrogen recovery pipe and then enters the collection box through the first connecting pipe to be recovered, and the nitrogen is recovered and reused in the aluminum powder production and processing process;
3. the nitrogen gas in the second connecting pipe passes outer filter screen after getting into filtering rotary drum downside position, makes nitrogen gas flow to the outside from outer filter screen inboard, blows the aluminium powder of adhesion in the outer filter screen outside to the clearance pipe to in getting into the collecting box through first connecting pipe, realize outer filter screen's self-cleaning, prevent that outer filter screen mesh from being influenced the efficiency of aluminium powder processing production by the shutoff.
Drawings
FIG. 1 is a front view of the body of the present invention;
FIG. 2 is an internal structural view of the present invention;
FIG. 3 is a right side view of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention.
Reference numbers in the figures: 1, an atomization box; 2, processing a box; 3, collecting the box; 4, rotating the disc; 5, a filtering rotary drum; 501, inner filtering net; 502 outer screen; 503 a partition plate; 6, atomizing spray heads; 7 a nitrogen recovery pipe; 8, cleaning the pipe; 9 driving the motor; 10 an aluminum liquid pipe; 11 a first connecting pipe; 12 a second connecting pipe; 13 a third connecting pipe; 14 cooling the tube.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
as shown in figures 1-4, a nitrogen atomization aluminum powder device comprises an atomization box 1 and a collection box 3, wherein a processing box 2 is arranged on the upper side of the atomization box 1, the processing box 2 is communicated with the upper side of the atomization box 1, the collection box 3 is fixed on the front side of the atomization box 1, a turntable 4 is rotatably sleeved on the position close to the right side in the atomization box 1, a driving motor 9 is fixed in the middle of the right side of the atomization box 1, an output shaft of the driving motor 9 passes through the atomization box, the output shaft of the driving motor 9 is fixedly connected with the middle of the turntable 4, an annular filter drum 5 is arranged on the left side of the turntable 4, a horizontal nitrogen recovery pipe 7 is arranged on the position close to the upper side in the atomization box 1, the right end of the nitrogen recovery pipe 7 is sealed, the left end port of the nitrogen recovery pipe 7 penetrates through the atomization box 1, a horizontal cleaning pipe 8 is arranged on the position close to the lower side in the atomization box 1, the right end of the cleaning pipe 8 is sealed, and the left end port of the cleaning pipe 8 penetrates through the atomization box 1, a plurality of atomizing spray heads 6 are uniformly distributed in the processing box 2, the spraying ends of the atomizing spray heads 6 are vertically downward, the upper ends of the atomizing spray heads 6 penetrate out of the processing box 2, the side wall parts, close to the upper ends, of the atomizing spray heads 6 are communicated with an aluminum liquid pipe 10, and the aluminum liquid pipe 10 is used for supplying aluminum liquid.
In this embodiment, the filtering rotary drum 5 is composed of an inner filter mesh 501 and an outer filter mesh 502 which are concentrically distributed, twelve partition plates 503 are annularly distributed between the inner filter mesh 501 and the outer filter mesh 502, the filtering rotary drum 5 is divided into twelve cavities by the partition plates 503, the inner edges of the partition plates 503 are fixedly connected with the inner filter mesh 501, the outer edges of the partition plates 503 are fixedly connected with the outer filter mesh 502, the left and right ends of the filtering rotary drum 5 near the upper side are blocked by the atomizing box 1, the left end of the filtering rotary drum 5 near the lower side is blocked by the atomizing box 1, the left and right side walls of the atomizing box 1 are uniformly distributed with through holes, the through holes on the left side wall of the atomizing box 1 are communicated with the first connecting pipe 11, the through holes on the right side wall of the atomizing box 1 are communicated with the second connecting pipe 12, the first connecting pipe 11 is communicated with the left side of the collecting box 3, the second connecting pipe 12 is communicated with the right end port of the cleaning pipe 8, meanwhile, the second connecting pipe 12 is communicated with a third connecting pipe 13, the third connecting pipe 13 is horizontally arranged above the atomizing nozzle 6, and the third connecting pipe 12 is communicated with the atomizing nozzle 6.
In this trial example, nitrogen gas is stored in the collecting box 3, and the air pump is fixed in the collecting box 3, and the air inlet position of air pump is provided with the filter screen, avoids aluminite powder to get into the air pump in the collecting box 3, and the gas vent and the second connecting pipe 12 intercommunication of air pump.
In this embodiment, the diameter of the mesh of the outer screen 502 is larger than that of the mesh of the inner screen 501, and the aluminum powder sprayed from the atomizer 6 is filtered by the outer screen 502, so that a large amount of large-particle aluminum powder is prevented from entering the filter drum 5, and meanwhile, the aluminum powder in the filter drum 5 is filtered by the inner screen 501, so that the aluminum powder is prevented from entering the nitrogen recovery pipe 7, and the aluminum powder is prevented from being present in the recovered nitrogen.
In this embodiment, lateral wall evenly distributed has the through-hole on nitrogen gas recovery pipe 7, and the nitrogen gas of being convenient for gets into recovery pipe 7 through inner strainer 501, retrieves nitrogen gas.
In this embodiment, the side wall evenly distributed has the through-hole on clearance pipe 8, is convenient for filter that nitrogen gas passes through outer filter screen 502 and gets into clearance pipe 8 in rotary drum 5, blows in the aluminium powder of adhesion on outer filter screen 502 in clearance pipe 8 and retrieves.
In this embodiment, a cooling pipe 14 is sleeved at a connection portion of the second connecting pipe 12 and the third connecting pipe 13, and the cooling pipe 14 is used to cool nitrogen gas, so that when the nitrogen gas contacts with the aluminum liquid, atomization of the aluminum liquid is accelerated to form aluminum powder.
The production method of the nitrogen atomized aluminum powder comprises the following steps: starting an air pump in the driving motor 9 and the collecting box 3, pumping nitrogen through the air pump, realizing the circulation of the nitrogen, simultaneously cooling the nitrogen by introducing cooling water into the cooling pipe 14, introducing aluminum liquid into the atomizing nozzle 6 through the aluminum liquid pipe 10, spraying and atomizing the aluminum liquid from the atomizing nozzle 6 after mixing the aluminum liquid with the nitrogen to form aluminum powder, filtering the aluminum powder through the outer filter screen 502, cutting large-particle aluminum powder which is just sprayed from the atomizing nozzle 6 and is completely cooled and formed by utilizing the mesh edge of the outer filter screen 502, ensuring that the aluminum powder particles produced by processing are smaller than the mesh aperture of the outer filter screen 502, and improving the quality of the produced aluminum powder; the aluminum powder is separated from the nitrogen by the inner filter screen 501, the separated nitrogen enters the nitrogen recovery pipe 7 and then enters the collection box 3 through the first connecting pipe 11 to be recovered, and the nitrogen is recovered and reused in the aluminum powder production and processing process; along with the rotation of the filtering rotary drum 5, two ends of the part of the filtering rotary drum 5 in which the aluminum powder is stored are communicated with through holes at the left side and the right side of the atomization box 1, after part of nitrogen in the second connecting pipe 12 enters from the right end of the filtering rotary drum 5, the part of nitrogen carries the aluminum powder to be discharged from the left end of the filtering rotary drum 5 into the first connecting pipe 11 by virtue of wind power generated by the flowing of the nitrogen, and the aluminum powder enters the collection box 3 again, and the aluminum powder in the filtering rotary drum 5 is recovered into the collection box 3; the nitrogen in the second connecting pipe 12 enters the lowest part of the filtering rotary drum 5 and then passes through the outer filter screen 502, so that the nitrogen flows to the outside from the inner side of the outer filter screen 502, aluminum powder adhered to the outer side of the outer filter screen 502 is blown to the cleaning pipe 8, and the nitrogen enters the collecting box 3 through the first connecting pipe 11, the self-cleaning of the outer filter screen 502 is realized, and the meshes of the outer filter screen 502 are prevented from being blocked to influence the efficiency of aluminum powder processing and production.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (8)
1. The utility model provides a nitrogen gas atomizing aluminite powder device, includes atomizer box, collecting box, its characterized in that: the processing box is arranged on the upper side of the atomization box, the processing box is communicated with the upper side of the atomization box, the collection box is fixed on the front side of the atomization box, a turntable is rotatably sleeved at a position close to the right side in the atomization box, a driving motor is fixed at the middle part of the right side of the atomization box, an output shaft of the driving motor penetrates through the atomization box, the output shaft of the driving motor is fixedly connected with the middle part of the turntable, an annular filtering rotary drum is arranged on the left side of the turntable, a horizontal nitrogen recovery pipe is arranged at a position close to the upper side in the atomization box, the right end of the nitrogen recovery pipe is sealed, the left end port of the nitrogen recovery pipe penetrates out of the atomization box, a horizontal cleaning pipe is arranged at a position close to the lower side in the atomization box, the right end of the cleaning pipe is sealed, the left end port of the cleaning pipe penetrates out of the atomization box, a plurality of atomization nozzles are uniformly distributed in the processing box, the spray ends of the atomization nozzles are vertically downward, the upper ends of the atomization nozzles penetrate out of the processing box, and the side wall part of the atomizing nozzle close to the upper end is communicated with an aluminum liquid pipe.
2. The device for atomizing aluminum powder by nitrogen according to claim 1, wherein the filter drum comprises an inner filter screen and an outer filter screen which are concentrically arranged, twelve partition plates are annularly arranged between the inner filter screen and the outer filter screen, the partition plates divide the filter drum into twelve cavities, the inner edges of the partition plates are fixedly connected with the inner filter screen, the outer edges of the partition plates are fixedly connected with the outer filter screen, the left and right ends of the filter drum near the upper side are respectively blocked by the atomizing boxes, the left end of the filter drum near the lower side is blocked by the atomizing boxes, through holes are uniformly distributed on the left and right side walls of the atomizing boxes, the through holes on the left side wall of the atomizing box are communicated with a first connecting pipe, the through holes on the right side wall of the atomizing box are communicated with a second connecting pipe, the first connecting pipe is communicated with the left side of the collecting box, the second connecting pipe is communicated with the right end port of the collecting box, and the second connecting pipe is communicated with a third connecting pipe, the third connecting pipe is horizontally arranged above the atomizing spray head and communicated with the atomizing spray head.
3. The device for atomizing aluminum powder by nitrogen according to claim 1, wherein the collection box is filled with nitrogen, an air pump is fixed in the collection box, a filter screen is arranged at an air inlet of the air pump to prevent aluminum powder in the collection box from entering the air pump, and an air outlet of the air pump is communicated with the second connecting pipe.
4. The apparatus for atomizing aluminum powder by nitrogen according to claim 2, wherein the diameter of the mesh of the outer screen is larger than that of the mesh of the inner screen.
5. The apparatus of claim 1, wherein the nitrogen recovery tube has through holes uniformly distributed on its upper side wall.
6. The apparatus of claim 1, wherein the cleaning tube has through holes uniformly distributed on its upper side wall.
7. The device for atomizing aluminum powder by nitrogen according to claim 2, wherein a cooling pipe is sleeved on a connecting part of the second connecting pipe and the third connecting pipe.
8. The method for producing the aluminum powder atomized by the nitrogen as claimed in claims 1 to 7, wherein the driving motor and the air pump in the collection box are started, the nitrogen is pumped by the air pump to realize the circulation of the nitrogen, the nitrogen is cooled by introducing cooling water into the cooling pipe, aluminum liquid is introduced into the atomizing nozzle through the aluminum liquid pipe, the aluminum liquid is sprayed out from the atomizing nozzle after being mixed with the nitrogen and atomized to form the aluminum powder, the aluminum powder is filtered by the outer filter screen, and the large-particle aluminum powder which is just sprayed out from the atomizing nozzle and is completely cooled and formed is cut by utilizing the mesh edge of the outer filter screen, so that the aluminum powder particles produced by processing are smaller than the mesh aperture of the outer filter screen, and the quality of the produced aluminum powder is improved; the aluminum powder is retained in the filtering rotary drum through the separation of the inner filter screen, so that the aluminum powder is separated from the nitrogen, the separated nitrogen enters the nitrogen recovery pipe and then enters the collection box through the first connecting pipe to be recovered, and the nitrogen is recovered and reused in the aluminum powder production and processing process; the two ends of the part of the filtering rotary drum in which the aluminum powder is stored are communicated with through holes on the left side and the right side of the atomization box along with the rotation of the filtering rotary drum, and after part of nitrogen in the second connecting pipe enters from the right end of the filtering rotary drum, the part of nitrogen carries the aluminum powder to be discharged from the left end of the filtering rotary drum into the first connecting pipe by virtue of wind power generated by the flowing of the nitrogen, and the aluminum powder enters the collection box again, so that the aluminum powder in the filtering rotary drum is recovered into the collection box; the nitrogen gas in the second connecting pipe passes outer filter screen after getting into filtering rotary drum downside position, makes nitrogen gas flow to the outside from outer filter screen inboard, blows the aluminium powder of adhesion in the outer filter screen outside to the clearance pipe to in getting into the collecting box through first connecting pipe, realize outer filter screen's self-cleaning, prevent that outer filter screen 502 mesh from being influenced the efficiency of aluminium powder processing production by the shutoff.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210106327.1A CN114535583A (en) | 2022-01-28 | 2022-01-28 | Production method of nitrogen atomized aluminum powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210106327.1A CN114535583A (en) | 2022-01-28 | 2022-01-28 | Production method of nitrogen atomized aluminum powder |
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| Publication Number | Publication Date |
|---|---|
| CN114535583A true CN114535583A (en) | 2022-05-27 |
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| CN202210106327.1A Pending CN114535583A (en) | 2022-01-28 | 2022-01-28 | Production method of nitrogen atomized aluminum powder |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003034511A (en) * | 2001-07-23 | 2003-02-07 | Denki Kagaku Kogyo Kk | Method of manufacturing aluminum nitride powder |
| CN208162623U (en) * | 2017-12-25 | 2018-11-30 | 山东诚旭新材料有限公司 | A kind of nitrogen recycling tank in production of aluminum powder |
| CN209969568U (en) * | 2018-10-15 | 2020-01-21 | 内蒙古旭阳新材料有限公司 | Controllable atomizing device is used in aluminite powder preparation |
| CN210023788U (en) * | 2019-04-25 | 2020-02-07 | 内蒙古旭阳新材料有限公司 | Cooling equipment for producing nitrogen atomized spherical aluminum powder |
| CN214555054U (en) * | 2021-04-13 | 2021-11-02 | 河南省远洋粉体科技股份有限公司 | Aluminium water nitrogen gas atomizing device of aluminite powder production |
-
2022
- 2022-01-28 CN CN202210106327.1A patent/CN114535583A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003034511A (en) * | 2001-07-23 | 2003-02-07 | Denki Kagaku Kogyo Kk | Method of manufacturing aluminum nitride powder |
| CN208162623U (en) * | 2017-12-25 | 2018-11-30 | 山东诚旭新材料有限公司 | A kind of nitrogen recycling tank in production of aluminum powder |
| CN209969568U (en) * | 2018-10-15 | 2020-01-21 | 内蒙古旭阳新材料有限公司 | Controllable atomizing device is used in aluminite powder preparation |
| CN210023788U (en) * | 2019-04-25 | 2020-02-07 | 内蒙古旭阳新材料有限公司 | Cooling equipment for producing nitrogen atomized spherical aluminum powder |
| CN214555054U (en) * | 2021-04-13 | 2021-11-02 | 河南省远洋粉体科技股份有限公司 | Aluminium water nitrogen gas atomizing device of aluminite powder production |
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