CN202411422U - Atomizer - Google Patents
Atomizer Download PDFInfo
- Publication number
- CN202411422U CN202411422U CN2011205647397U CN201120564739U CN202411422U CN 202411422 U CN202411422 U CN 202411422U CN 2011205647397 U CN2011205647397 U CN 2011205647397U CN 201120564739 U CN201120564739 U CN 201120564739U CN 202411422 U CN202411422 U CN 202411422U
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- Prior art keywords
- metal
- coating
- atomizer
- mozzle
- heater
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Abstract
The utility model discloses an atomizer, which comprises a guide tube, a metal sleeve, a nozzle, a heater, a ceramic seal ring and the like, a gap is reserved between the guide tube and the metal sleeve, the heater is mounted in the gap, a metal reflective film or sprayed reflective coating is arranged on the inner surface of the metal sleeve, one part of the metal sleeve, which is one third to half of the metal sleeve and close to the outlet of the lower end, is gradually reduced from the top down to form an outer cone, moreover, the lower end of the metal sleeve is flushed with the lower end of the guide tube, and the gap between the outer cone of the metal sleeve and the outlet of the lower end of the guide tube is sealed by the ceramic seal ring. The atomizer can effectively prevent the blockage of metal and alloy, thus solving the problem of blockage. The atomizer is suitable for guiding the flow of atomized metal or alloy melt, and moreover, the atomizer has a simple structure, is convenient to mount, and can increase the production efficiency.
Description
Technical field
The utility model relates to atomizing molten materials with gases makes the used a kind of atomizer of superfine powder.
Background technology
Gas atomization is widely used in the preparation of metal and alloy powder, and the principle of its powder process is the gas shock molten metal with high-speed motion, and liquid metals is broken into droplet and at subsequently quick cooled and solidified powdered in-flight.The gas atomization powder has advantages such as sphericity height, powder size be controlled, has become the main direction of high-performance metal and special alloy powder preparation.
Atomizer nozzle is the core of gas atomization technology, and nozzle control air-flow is to the mechanism of metal liquid stream, make the kinetic energy of air-flow be converted into new green powder the surface can, so atomizer has determined the performance and the nebulization efficiency of atomized powder.
The version of atomizer is varied in the prior art; Be divided into annular distance type atomizer and circumferential weld type atomizer according to nozzle arrangements; No matter be the circumferential weld type or the atomizer of annular distance type structure; The mozzle phenomenon of blocking in use often takes place, and this is caused by following two aspect reasons at least, and the one, molten metal occurs solidifying because temperature reduces in flow process.The 2nd, because backwash appears in molten drop in atomization process; Promptly the drop of atomizing is to the direction flight of aerodynamic atomization nozzle; The molten drop of backwash adheres to the lower end of aerodynamic atomization nozzle; And constantly solidify accumulation, finally cause mozzle on the centre bore of aerodynamic atomization nozzle to stop up and atomization process is interrupted.In case mozzle stops up, production can't be proceeded.In this case, have only the whole atomizer of replacing, this has increased production cost greatly, and influences preparation efficiency and product quality.
At present; The technology of atomizer being improved renewal has a lot; Related patent U.S. Patent No. also has a lot, but these technology are relevant how to control the metal dust granularity and aspect such as how to enhance productivity mostly, seldom relevant for patent that how to solve the atomizer blockage problem and technology.
The anti-blocking type atomizer nozzle that the disclosed preparation micro-fine metal powder of patent CN201744413U is used; In mozzle, increase the combination electrode rod; When stopping up generation, on combination electrode rod and mozzle, switch on, tamper is heated; Make its instantaneous intensification fusing, thereby reach the purpose that prevents to stop up, solve obstruction.But following several problem values that this atomizer exists must be discussed; First; Mozzle has the conductive high temperature resistance performance, and first electrode and second electrode are high temperature resistant electrode, and this requires very high to mozzle and the used material of electrode; And mozzle often energising can deform and influence atomizing effect, electrode material need prevent and the reaction of metal bath and high temperature resistant; The second, because the general diameter of mozzle is smaller, usually at the order of magnitude of millimeter, therefore at the inner combination electrode of placing of mozzle, the introducing of extraneous power supply is difficult to be realized, and also has difficulty on the operability; The 3rd, mozzle contains this design of combination electrode, and the granularity control that obtains particle for atomization process is difficult, and this is because melt when draft tube outlets spray, presents the melt of a hollow, and circumference is bigger, for the particle diameter control of powder difficulty; The 4th, any collision between mozzle and the combination electrode all might cause damage to mozzle, even cause the appearance of short circuit phenomenon.The 5th, this atomizer dismounting difficulty is just in case run into the situation of lead rupture and metal or alloy obstruction; Can only pull down whole atomizer, and come to take out electrode to the metal or alloy fusing of stopping up through external heat; Behind the transposing electrode; Atomizer is fixed, the workload of so each dismounting is very big, has reduced production efficiency again.Therefore, difficulty is implemented in the design of this atomizer structure.
In a word, how to solve the blockage problem of atomizer, and don't to influence production efficiency be a difficult problem.Therefore, seek a kind of effective solution, can solve the atomizer blockage problem, can also guarantee simple and practical, still difficult problem concerning the technical staff.
Summary of the invention
One of purpose of the utility model is in order to prevent the metal or alloy blocking problem a kind of atomizer to be provided.
The technical scheme of the utility model
A kind of atomizer of the utility model promptly through changing the structure of atomizer, is installed heater, thereby is reached the purpose that prevents to stop up, solve obstruction between mozzle and metal-coating.
Described a kind of atomizer comprises mozzle, nozzle, also comprises metal-coating, heater, ceramic-seal ring etc. in addition;
Described nozzle is provided with air inlet pipe and gas outlet;
The upper end core of described metal-coating has the hole that adapts with the mozzle external diameter; In order to mozzle to be installed; The lower end of metal-coating is uncovered, metal-coating from top to bottom the end near 1/3 ~ 1/2 place of bottom outlet be apered to 80
~ 89
the outer cone body;
The outside of the part that is apered to bullet of metal-coating be provided with screw thread and with the side of the interior center taper hole of nozzle on threads engaged, to realize support, the location and fixing to metal-coating, the metal-coating remainder does not contact with nozzle;
Make mozzle and metal-coating concentric during installation, the bottom of mozzle is concordant with the bottom of metal-coating;
Heater is installed in the gap that 10mm ~ 100mm is arranged between mozzle and the metal-coating in the gap; So that mozzle does not directly contact with metal-coating, can prevent the conduction between heater and the metal-coating on the one hand, can reduce scattering and disappearing of mozzle heat on the other hand greatly;
Described heater is provided with external power interface and is connected with extraneous power supply; In case in a kind of atomizer of the utility model uses, take place under the situation of metal or low melting point obstruction; Can be through the heater energising; Heating makes its fusing that heats up to tamper, reaches to solve the purpose that metal or alloy stops up;
In addition, preferably being provided with metallic reflective coating near the surface of heater or spraying forms one deck white reflecting coating at metal-coating, is the energy that is used for reflecting the heater radiation, reduces the energy-conservation effect of energy loss thereby reach;
The used coating of described white reflecting coating is preferably tin oxide;
Gap location in metal-coating and mozzle bottom adopts the ceramic-seal ring sealing, and ceramic-seal ring adopts with the metal-coating bottom and is threaded;
Described mozzle, metal-coating can be different according to atomization metal or alloy powder, select material different;
Even that described mozzle can be selected is high temperature resistant, thermal insulation good, inertia, be easy to process or be difficult to process but can be made into the material of simple shape, like aluminium oxide ceramics, silicon nitride ceramics, boron nitride ceramics, zirconia ceramics, silicon carbide ceramics and other refractory ceramics;
But described metal-coating selection intensity is high, be easy to process, inexpensive material, like carbon steel or stainless steel.
Described ceramic-seal ring material is selected basic zirconium phosphate pottery, aluminum phosphate or microcrystal glass processable ceramic for use;
Described heater is different, optional with electric furnace heating wire, silicon carbon rod heater according to atomization metal or alloy powder.
The installation process of above-mentioned a kind of atomizer is following:
At first the metal-coating on the atomizer is installed on the nozzle through being threaded, the outer cone body of metal-coating is matched with the interior center taper hole of nozzle, the metal-coating remainder does not contact with nozzle;
Then heater is installed in the metal-coating the inside;
Put into mozzle in the heater inboard subsequently, the center of mozzle overlaps with the center of metal-coating, places ceramic-seal ring at metal-coating and exit, mozzle bottom at last, installs thereby accomplish atomizer.
Utilize above-mentioned a kind of atomizer to atomize and prepare the metal or alloy ultra-micro powder; Can produce after being about to the mozzle of above-mentioned atomizer and pipeline on the melt stove being connected; Just in case the situation that metal or alloy blocks takes place, energized heating or replacing mozzle get final product in the production process.
The beneficial effect of the utility model
A kind of atomizer of the utility model; Be through changing the structure of atomizer, between mozzle and metal-coating, heater being installed, through heating; Can eliminate the low melting point tamper that metal or alloy forms effectively; Can also play insulation effect to molten metal, can prevent the cooled and solidified that produces in the flow process that molten metal causes because of reasons such as Changes in weather effectively, thereby the phenomenon of avoiding the mozzle bottom to stop up atomizing can't be continued takes place.
Most materials adopts metal material in a kind of atomizer of the utility model, and is not only cheap, easy to process, reusable; And can prevent that the mozzle end from contacting with the high speed cold air-flow; Heating status is significantly improved, and thermal shock resistance improves, and is difficult for bursting.Because the protection of metal-coating, the mozzle security performance improves, and difficultly fractures or damages.
Gapped heat insulation between mozzle and the metal-coating; Metal-coating only contacts with exit, mozzle bottom with an awl section; Area of dissipation reduces; Mozzle does not directly contact the high speed cold air-flow, and these measures can keep the temperature of melt significantly, reduces the melt atomizing degree of superheat and reduces the danger of stopping up; The use of heater also provides guarantee for reducing the atomizing degree of superheat.The reduction of melt overheat degree can effectively weaken the reaction between melt and the mozzle, alleviates composition and pollutes, and improves the quality of powder.
This shows, a kind of atomizer of the utility model, simple in structure, easy to use, cost is low, can be repeatedly used, and anti-clogging, mediation are stopped up effective, can not damage atomizer with stopping up mediation apace.Can save work greatly, enhance productivity, reduce labour intensity into mediation or replacing mozzle.
Description of drawings
The atomizer structure sketch map of Fig. 1, the utility model, 1 is mozzle among the figure, and 2 is metal-coating, and 3 is nozzle; 4 is the nozzle air inlet pipe, and 5 is the nozzle gas outlet, and 6 is ceramic-seal ring; 7 is the gap between mozzle and the metal-coating, and 8 is heater, and 9 is reflectance coating.
The specific embodiment
Below through embodiment and combine accompanying drawing that the utility model is further set forth, but do not limit the utility model.
Embodiment 1
A kind of atomizer, its structural representation is as shown in Figure 1, and it also comprises gap 7, heater 8, reflectance coating 9, ceramic-seal ring 6 between metal-coating 2, mozzle and the metal-coating by mozzle 1, nozzle 3.
Described nozzle 3 is provided with nozzle air inlet pipe 4, nozzle gas outlet 5;
The upper part of described metal-coating 2 has the hole that adapts with mozzle 1 external diameter; In order to mozzle 1 to be installed; The lower end of metal-coating 2 is uncovered, metal-coating 2 from top to bottom the end near 1/3 ~ 1/2 place of bottom outlet be apered to 80
~ 89
the outer cone body;
The outside of the part that is apered to bullet of metal-coating 2 be provided with screw thread and with the side of the interior center taper hole of nozzle 3 on threads engaged, to realize support, the location and fixing to metal-coating 2, metal-coating 2 remainders do not contact with nozzle 3;
Described mozzle 1 adopts aluminium oxide ceramics, makes mozzle 1 concentric with metal-coating 2 during installation, and mozzle 1 is concordant with metal-coating 2 bottoms;
The gap 7 that 10mm ~ 100mm is arranged between mozzle 1 and the metal-coating 2; 7 li heater 8 is installed in the gap; Heater 8 is provided with external power interface and is connected with extraneous power supply, in a kind of atomizer use of the utility model, takes place under the situation of metal or low melting point obstruction, can be through heater 8 energisings; Heating makes its fusing that heats up to tamper, reaches to solve the purpose that metal or alloy stops up;
In the surface spraying one deck white reflecting coating 9 of metal-coating 2 near heater 8, when heater 8 work, the heat of 9 pairs of heater 8 radiation of white reflecting coating plays reflex, prevents the consumption of heat;
7 near 6 sealings of mozzle 1 bottom employing ceramic-seal ring in the gap, and ceramic-seal ring 6 adopts with metal-coating 2 bottoms and is threaded.
Application implementation example 1
The application of embodiment 1 described a kind of atomizer in the preparation of superfine metal aluminium powder, concrete grammar is following:
The assembling of atomizer
At first the outer cone body with metal-coating 2 matches with the interior center taper hole of nozzle 3; The outside of the part that is apered to bullet of metal-coating 2 be provided with screw thread and with the side of the interior center taper hole of nozzle on threads engaged; Realization is to support, the location and fixing of metal-coating 2, and metal-coating 2 remainders do not contact with nozzle 3; Heater 8 then is installed in metal-coating 2 the insides; Put into mozzle 1 in heater 8 inboards subsequently; Load onto ceramic-seal ring 6 in metal-coating 2 and mozzle 1 lower end at last, thereby accomplish the installation of atomizer;
Utilize above-mentioned a kind of atomizer preparation metallic aluminium powder that atomizes; Can produce after being about to the mozzle 1 of above-mentioned atomizer and pipeline on the melt stove being connected; The situation that metallic aluminium blocks just in case take place in mozzle in the production process, and energized heats, and the metal phenomenon of blocking does not appear in exit, mozzle bottom as a result; And can produce continuously the whole year, improved flour extraction and production efficiency greatly.
Can find out from The above results; Compare with existing atomizer, the use of a kind of atomizer of the utility model in the preparation of metal or alloy ultra-micro powder not only can solve the obstructing problem of metal or alloy, thereby reduced the loss of material; Promptly practiced thrift material; Reduce production cost, also improved the quality of product, improved production efficiency.
Foregoing is merely the basic explanation under the utility model design, and according to any equivalent transformation that the technical scheme of the utility model is done, all should belong to the protection domain of the utility model.
Claims (7)
1. an atomizer comprises mozzle, nozzle, it is characterized in that also comprising metal-coating, heater, ceramic-seal ring;
The upper end core of described metal-coating has the hole that adapts with the mozzle external diameter; In order to mozzle to be installed; The lower end of metal-coating is uncovered, metal-coating from top to bottom the end near 1/3 ~ 1/2 place of bottom outlet be apered to 80
~ 89
the outer cone body;
The outside of the part that boils down into bullet of metal-coating be provided with screw thread and with the side of the interior center taper hole of nozzle on threads engaged, to realize support, the location and fixing to metal-coating, the metal-coating remainder does not contact with nozzle;
Mozzle is concentric with metal-coating, and the mozzle bottom is concordant with the metal-coating bottom during installation;
Be provided with the gap of 10mm ~ 100mm between mozzle and the metal-coating, heater is installed in the gap;
Described heater is provided with external power interface and is connected with extraneous power supply;
Gap location in metal-coating and mozzle bottom adopts the ceramic-seal ring sealing, and ceramic-seal ring adopts with the metal-coating bottom and is threaded.
2. a kind of atomizer as claimed in claim 1 is characterized in that being provided with one deck white reflecting coating that metallic reflective coating or spraying form at metal-coating near the inner surface of heater.
3. a kind of atomizer as claimed in claim 2 is characterized in that the used coating of described reflectance coating spraying is tin oxide.
4. a kind of atomizer as claimed in claim 3 is characterized in that described heater is electric furnace heating wire or silicon carbon rod.
5. a kind of atomizer as claimed in claim 4 is characterized in that described ceramic-seal ring material selects basic zirconium phosphate pottery, aluminum phosphate or microcrystal glass processable ceramic for use.
6. a kind of atomizer as claimed in claim 5 is characterized in that described metal-coating adopts carbon steel or stainless steel.
7. like the described a kind of atomizer of the arbitrary claim of claim 1 ~ 6, it is characterized in that described mozzle material selects aluminium oxide ceramics, silicon nitride ceramics, boron nitride ceramics, zirconia ceramics or silicon carbide ceramics for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205647397U CN202411422U (en) | 2011-12-30 | 2011-12-30 | Atomizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205647397U CN202411422U (en) | 2011-12-30 | 2011-12-30 | Atomizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202411422U true CN202411422U (en) | 2012-09-05 |
Family
ID=46736218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205647397U Expired - Fee Related CN202411422U (en) | 2011-12-30 | 2011-12-30 | Atomizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202411422U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489712A (en) * | 2011-12-30 | 2012-06-13 | 上海应用技术学院 | Atomizer and application thereof |
-
2011
- 2011-12-30 CN CN2011205647397U patent/CN202411422U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489712A (en) * | 2011-12-30 | 2012-06-13 | 上海应用技术学院 | Atomizer and application thereof |
| CN102489712B (en) * | 2011-12-30 | 2014-08-20 | 上海应用技术学院 | Atomizer and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20121230 |