CN202984671U - Powder metallurgy water atomization nozzle - Google Patents
Powder metallurgy water atomization nozzle Download PDFInfo
- Publication number
- CN202984671U CN202984671U CN 201220673448 CN201220673448U CN202984671U CN 202984671 U CN202984671 U CN 202984671U CN 201220673448 CN201220673448 CN 201220673448 CN 201220673448 U CN201220673448 U CN 201220673448U CN 202984671 U CN202984671 U CN 202984671U
- Authority
- CN
- China
- Prior art keywords
- nozzle
- crucible
- upper cover
- powder metallurgy
- supporting plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a powder metallurgy water atomization nozzle. The powder metallurgy water atomization nozzle comprises a crucible supporting plate, a crucible and a nozzle component, wherein the crucible is arranged on the crucible supporting plate; the nozzle component is arranged below the crucible supporting plate; the nozzle component comprises a nozzle upper cover, a water inlet pipe and a spray head; the center of the spray head and the nozzle upper cover is over against a discharge port of the crucible to form a high-temperature melting metal liquid channel; the spray head and the nozzle upper cover are fixedly connected; an annular liquid collecting cavity is formed between the spray head and the nozzle upper cover; the water inlet pipe is arranged on the nozzle upper cover; a water outlet of the water inlet pipe is communicated with the annular liquid collecting cavity; a plurality of spray holes are distributed on the lower end face of the spray head circumferentially and uniformly; one end of each spray hole is communicated with the annular liquid connecting cavity; and an atomizing region is formed between the nozzle component and a bottom plate. The crucible supporting plate is arranged between the nozzle component and the crucible, so that heat is prevented from being transferred to the nozzle component by the crucible, overhigh water temperature of the annular liquid collecting cavity of the nozzle component is prevented, and the atomizing effect is improved.
Description
Technical field
The utility model relates to the process that metal dust is produced in water atomization, and the water atomization that can be widely used in various metal dusts is produced.
Background technology
What at present, produce both at home and abroad that metal dust extensively adopts is the water atomization method.Be that water removes to clash into molten metal bath, its atomizing is metal dust.This kind method technique is simple, is easy to realize, but because of its key equipment atomizing nozzle structure defective, causes water atomization to produce the powder process and often stop because the molten metal bath plug nozzle causes atomization process, the atomizer that at this moment will more renew.Therefore, in actual production, the water atomization pulverization process because spray nozzle clogging has increased cost, has reduced operating efficiency, has also brought inconvenience for workman's operation.
Summary of the invention
Hold susceptible to plugging technical problem in order to solve existing powder metallurgy water atomizing nozzle, the utility model provides a kind of powder metallurgy water atomizing nozzle, solves the problem of gaging somebody, and atomization process can be carried out smoothly.
Technical solution of the present invention is:
a kind of Novel powder metallurgy water atomizing nozzle, its special character is: the crucible supporting plate, the nozzle assembly that is arranged on the crucible on the crucible supporting plate and is arranged on crucible supporting plate below, described nozzle assembly comprises the nozzle upper cover, water inlet pipe and shower nozzle, the center of described shower nozzle and nozzle upper cover forms high-temperature molten metal liquid passage over against the crucible discharging opening, described shower nozzle be fixedly connected with the nozzle upper cover and between form annular liquid collecting cavity, described water inlet pipe is arranged on and covers on nozzle and the delivery port of water inlet pipe is communicated with annular liquid collecting cavity, the lower surface of described shower nozzle is evenly distributed in a plurality of spray orifices, one end of described spray orifice is communicated with annular liquid collecting cavity, form the range of atomization between described nozzle assembly and base plate.
The uniform a plurality of breach in the junction of said nozzle upper cover and shower nozzle, described breach is communicated with the range of atomization.
The inwall of said nozzle upper cover is fixed with graphite annulus.
Be provided with the first back-up ring between above-mentioned crucible supporting plate and nozzle upper cover inboard.
Be provided with the second back-up ring between the nozzle assembly outside and base plate.
Cover on nozzle and be provided with pressure-measuring pipe 10, the pressure point of described pressure-measuring pipe is positioned at annular liquid collecting cavity.
Be provided with boss on the crucible supporting plate, described boss is positioned at below crucible.
The utility model beneficial effect compared with prior art is:
1, the utility model is provided with the crucible supporting plate and prevents that crucible from transferring heat to nozzle assembly between nozzle assembly and crucible, prevents the water temperature over-high in the annular liquid collecting cavity of nozzle assembly, improves atomizing effect.
2, the utility model is provided with a plurality of breach on nozzle assembly, and its steam that produces in process that can make water fogging is in time discharged the range of atomization, prevents the formation of air bag in nozzle.
3, the utility model has installed graphite annulus additional and has prevented that molten metal bath is attached on nozzle assembly, avoids the plug nozzle assembly.
4, crucible supporting plate and nozzle assembly are provided with the first back-up ring, prevent that high-temperature molten metal liquid from contacting with air, avoid the front oxidation of molten metal atomizing.
5, in the range of atomization, increased by the second back-up ring between base plate and nozzle assembly, when allowing steam that atomization process produces discharge the range of atomization, can prevent that again atomized water and metal dust from spilling the range of atomization.
6, the utility model covers on nozzle and is provided with pressure-measuring pipe and comes Real-Time Monitoring annular liquid collecting cavity internal pressure to prevent that pressure from surpassing the nozzle assembly operating limit.
7, the boss on the crucible supporting plate can prevent that the water droplet that forms after the high-temperature vapor condensation from contacting with high-temperature crucibles and the crucible that causes bursts.
8, adopt the jet orifice structure of optimizing, guarantee that the water jet of mass flowing nozzle has higher momentum and breaking length, thereby obtain good atomizing effect, improve the fine powder rate.
Description of drawings
Fig. 1 is the cutaway view of the utility model powder metallurgy water atomizing nozzle;
Fig. 2 is the following top view of nozzle assembly in powder metallurgy water atomizing nozzle of the present utility model.
The specific embodiment
as shown in Figure 1, a kind of Novel powder metallurgy water atomizing nozzle, comprise crucible supporting plate 6, the nozzle assembly that is arranged on the crucible on crucible supporting plate 6 and is arranged on crucible supporting plate below, nozzle assembly comprises nozzle upper cover 3, water inlet pipe 5 and shower nozzle 2, the center of shower nozzle and nozzle upper cover forms high-temperature molten metal liquid passage over against the crucible discharging opening, shower nozzle be fixedly connected with the nozzle upper cover and between form annular liquid collecting cavity, water inlet pipe 5 is arranged on nozzle upper cover 3 and the delivery port of water inlet pipe is communicated with annular liquid collecting cavity, the lower surface of shower nozzle is evenly distributed in a plurality of spray orifices, one end of spray orifice is communicated with annular liquid collecting cavity, form the range of atomization between nozzle assembly and base plate 1.Pillar 7 is used for fixed nozzle assembly and crucible supporting plate.
Operation principle of the present utility model:
As shown in Figure 1, during work, high-temperature molten metal liquid is flowed out by the crucible discharging opening, and the high-temperature molten metal liquid passage through the center of nozzle assembly flows down; Atomized water via the ejection of the spray orifice in shower nozzle 2, forms high-speed jet in water inlet pipe 5 flows into the annular liquid collecting cavity of shower nozzle 2,3 formation of nozzle upper cover; The high-temperature molten metal liquid that in shower nozzle 2, the high-speed jet of ejection and crucible flow down clashes into, and the point molten metal atomizing is trickle metal dust.In this atomization process, can produce air bag in the formed cone of high-speed jet, the formation of this air bag can cause the metal dust after high-temperature molten metal liquid and atomizing can't normal descend, therefore can cause the phenomenon of spray nozzle clogging, and atomization process can not be carried out smoothly.
And as shown in Figure 2, in the present invention, the uniform a plurality of breach in the junction of nozzle upper cover and shower nozzle, breach is communicated with the range of atomization.In the range of atomization, the gas that produces in atomization process can be discharged from nozzle breach 11, so atomization process just can not stop because of the formation of air bag.
As shown in Figure 1, crucible supporting plate 6 is also kept apart high-temperature crucibles and nozzle assembly, prevents the nozzle assembly temperature rise, and in addition, the boss 14 on crucible supporting plate 6 can prevent the water droplet contact high-temperature crucibles after water vapor condensation and cause that high-temperature crucibles bursts; The pressure tester Real-Time Monitoring annular liquid collecting cavity internal pressure that connects on pressure-measuring pipe 10 changes, and prevents dangerous generation; Graphite annulus 4 can prevent that high-temperature molten metal from also adhering on nozzle, further prevents spray nozzle clogging; The first back-up ring 8 can prevent that high-temperature molten metal liquid from contacting with air, avoids the front oxidation of molten metal atomizing; Metal dust after the second back-up ring 17 can prevent from atomizing splashes out.
Claims (7)
1. Novel powder metallurgy water atomizing nozzle, it is characterized in that: the crucible supporting plate, the nozzle assembly that is arranged on the crucible on the crucible supporting plate and is arranged on crucible supporting plate below, described nozzle assembly comprises the nozzle upper cover, water inlet pipe and shower nozzle, the center of described shower nozzle and nozzle upper cover forms high-temperature molten metal liquid passage over against the crucible discharging opening, described shower nozzle be fixedly connected with the nozzle upper cover and between form annular liquid collecting cavity, described water inlet pipe is arranged on and covers on nozzle and the delivery port of water inlet pipe is communicated with annular liquid collecting cavity, the lower surface of described shower nozzle is evenly distributed in a plurality of spray orifices, one end of described spray orifice is communicated with annular liquid collecting cavity, form the range of atomization between described nozzle assembly and base plate.
2. Novel powder metallurgy water atomizing nozzle according to claim 1, it is characterized in that: the uniform a plurality of breach in the junction of described nozzle upper cover and shower nozzle, described breach is communicated with the range of atomization.
3. Novel powder metallurgy water atomizing nozzle according to claim 1 and 2, it is characterized in that: the inwall of described nozzle upper cover is fixed with graphite annulus.
4. Novel powder metallurgy water atomizing nozzle according to claim 3 is characterized in that: be provided with the first back-up ring between described crucible supporting plate and nozzle upper cover inboard.
5. Novel powder metallurgy water atomizing nozzle according to claim 4, is characterized in that: be provided with the second back-up ring between the nozzle assembly outside and base plate.
6. Novel powder metallurgy water atomizing nozzle according to claim 5, it is characterized in that: cover on nozzle and be provided with pressure-measuring pipe (10), the pressure point of described pressure-measuring pipe is positioned at annular liquid collecting cavity.
7. Novel powder metallurgy water atomizing nozzle according to claim 6 is characterized in that: be provided with boss on the crucible supporting plate, described boss is positioned at the crucible below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220673448 CN202984671U (en) | 2012-12-08 | 2012-12-08 | Powder metallurgy water atomization nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220673448 CN202984671U (en) | 2012-12-08 | 2012-12-08 | Powder metallurgy water atomization nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202984671U true CN202984671U (en) | 2013-06-12 |
Family
ID=48555894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220673448 Expired - Lifetime CN202984671U (en) | 2012-12-08 | 2012-12-08 | Powder metallurgy water atomization nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202984671U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941591A (en) * | 2018-08-24 | 2018-12-07 | 连平县昕隆实业有限公司 | A kind of water atomizing nozzle |
-
2012
- 2012-12-08 CN CN 201220673448 patent/CN202984671U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941591A (en) * | 2018-08-24 | 2018-12-07 | 连平县昕隆实业有限公司 | A kind of water atomizing nozzle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |
|
| CX01 | Expiry of patent term |