CN202968662U - Light metal jetting and purifying treatment spray head - Google Patents
Light metal jetting and purifying treatment spray head Download PDFInfo
- Publication number
- CN202968662U CN202968662U CN 201220673546 CN201220673546U CN202968662U CN 202968662 U CN202968662 U CN 202968662U CN 201220673546 CN201220673546 CN 201220673546 CN 201220673546 U CN201220673546 U CN 201220673546U CN 202968662 U CN202968662 U CN 202968662U
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- venturi tube
- inert gas
- inlet pipe
- molten metal
- purifying treatment
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Abstract
The utility model relates to a light metal jetting and purifying treatment spray head. The light metal jetting and purifying treatment spray head comprises a venturi tube part and a diffusion section, wherein an air inlet pipe is communicated with the venturi tube part, is vertically arranged on the venturi tube part, and extends into the venturi tube part; an elbow is arranged on the air inlet pipe after the air inlet pipe enters a venturi tube; and the direction of an opening of the elbow corresponds to the diffusion section and is consistent with the flowing direction of a fluid. By using a principle of the venturi tube, a high-pressure and high-speed inert gas is introduced into the throat part of a graphitic venturi tube to ensure that a negative pressure is generated at the inlet of the venturi tube to suck molten metal into the venturi tube; after entering the venturi tube, the molten metal meets the inert gas at the throat part to generate a large quantity of small bubbles; after passing through the diffusion section, the inert gas and the molten metal are slowed down to ensure that the inert gas fully contacts the molten metal, and hydrogen dissolved in the molten metal is fully diffused into the inert gas at the stage and is taken away from a molten light alloy when the inert gas floats upwards.
Description
Technical field
The utility model relates to purifying treatment equipment in a kind of light metal smelting.
Background technology
Light metal is in fusion process, owing to contacting with furnace gas, body of heater, can cause air-breathing, oxidation after melting is complete, can exist metal oxide and hydrogen in molten soup, must add refining agent in molten soup, be blown into rare gas element alloy liquid and carry out purifying treatment, can obtain the qualified molten soup of purity, for casting.Therefore the molten soup of light metal being carried out purifying treatment is the basis that light metal is used, and develops the molten soup purifying treatment shower nozzle of a kind of light metal and has great importance.
At present light metal being smelted the purifying method that adopts mainly contains following several:
1, use the single tube winding-up, take rare gas element as carrier, refining agent is directly sprayed in the molten soup of light metal, rare gas element, refining agent contact with molten soup, by physics, chemical reaction, molten soup are carried out purifying treatment.
2, use perforated tube that rare gas element is blown in molten soup, rare gas element plays the effect of purifying treatment to molten soup.
3, use rotor that rare gas element is blown in molten soup, rotor is smashed the less bubble of formation with the rare gas element bubble, thereby plays better cleaning action.
4, use the porous breathable brick that rare gas element is passed in molten soup, rare gas element forms tiny bubble, and molten soup is played cleaning action.
Although present various technology can satisfy Production requirement, also there is defective separately:
1. the single tube injection technology due to after rare gas element passes into alloy, forms air pocket, and is insufficient with contacting of molten soup, causes purifying treatment effect extreme difference, especially totally unfavorable for the hydrogen of removing in molten soup.
2 use perforated tube that rare gas element is blown in molten soup, and rare gas element can't form tiny bubble, the dehydrogenation weak effect, and the effect of removal of inclusions is very small, and large to the stirring of molten soup, and the process oxidation is serious.
3. use the method device structure of rotor complicated, and because it needs driven by motor, motor can't bear high temperature, therefore can't realize the purifying treatment effect in stove.
4. use the method effect of porous breathable brick better, but need to install on furnace equipment, furnace binding is exerted an influence, and investment is large, cost is high, failure rate is high, needs after damage body of heater is carried out large repairs, and maintenance cost is high.Therefore, develop a kind of simple and easy to do, with low cost, remarkably productive purification shower nozzle imperative.
Summary of the invention
The deficiency that goal of the invention of the present utility model is to overcome existing various degassing units provide a kind of simple in structure, degassing effect good, do not use any mechanical power, equipment running cost is low, the convenient light metal blowing purification that uses is processed shower nozzle.
The technical solution of the utility model: comprise a trunnion section and expansion section, section is provided with inlet pipe at trunnion, and inlet pipe is connected with trunnion section, and the inlet pipe below is light alloy liquid passage.
Described inlet pipe is perpendicular to trunnion section, and inlet pipe is one 90 degree elbow after entering throat, the corresponding expansion section of elbow opening direction.The corresponding expansion section of elbow opening direction is consistent with the direction of flow direction.Stretch into the passage of flowing through for light alloy liquid in the elbow below of the inlet pipe in trunnion section.
key point of the present utility model is the principle of having utilized Venturi tube, throat in the Venturi tube of graphite-made passes into high pressure, rare gas element at a high speed, ingress in Venturi tube during the rare gas element ejection produces negative pressure, thereby attract molten soup to enter in pipe, after molten soup enters, join in throat and rare gas element, produce a large amount of small bubbles, through after expansion segment, gas and molten soup flow velocity reduce, reach the effect of abundant contact, during hydrogen in this stage is dissolved in molten soup fully is diffused into rare gas element, rare gas element takes away light alloy liquid with hydrogen in the process of floating.
Process is to installing the experiment of purification system of the present utility model, its degassing efficiency improves greatly, and the hydrogen content of molten soup reduces greatly, and equipment running cost reduces greatly, design parameter is as follows: using gas-freeing system that four shower nozzles form as example, its processing power be 50 tons of light alloy liquid/hour; Compare 30 tons of light alloy liquid of general nozzle/hour improved nearly a times; Hydrogen content after processing in light alloy liquid reaches below 0.08ml/100g; After alloy casting, the pinhole rate of ingot casting reaches one-level; Use this shower nozzle, the consumption of nitrogen reduces greatly, and light alloy liquid per ton uses 3Kg nitrogen, can reach above-mentioned degassing effect; Use this shower nozzle to realize the circulation of light alloy liquid in stove, reached simultaneously even composition in degasification, temperature reduces the effect of oxidation.
Compared with prior art, the utlity model has following advantage:
1, by utilizing the principle of Venturi tube, allow the nitrogen fully contact with light alloy liquid, greatly improved degassing efficiency, reduced hydrogen content final in the light alloy;
2, the utility model operation, easy to use has use range widely;
3, use the utility model with nitrogen as power, do not need extra power, use cost is cheap;
4, use the utility model, do not need to be installed on body of heater, manufacturing cost is installed cheap;
5, the utility model can be used for the online degasification of castingprocesses.
The utility model can make rare gas element fully contact at expansion segment with molten light metals, has greatly strengthened decontamination effect improving.Some drawbacks of prior art have been avoided, be with a wide range of applications aspect the light metal smelting, realized simple, efficient degassing effect, do not use any mechanical power, can form tiny bubble in light alloy liquid, improve degassing effect, and can separate with furnace binding, with low cost, the convenient use.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
In Fig. 1, comprise a trunnion section 1 and expansion section 2, trunnion section 1 one sides are light alloy liquid import 6, and expansion section 2 one sides are light alloy liquid outlet 5, are provided with inlet pipe 3 in trunnion section 1, and inlet pipe 3 is connected with trunnion section 1, and inlet pipe 3 is perpendicular to trunnion section 1.Inlet pipe 3 ingress tube walls have connecting thread 4, rely on connecting thread 4 to be connected with metal tube, and metal tube is connected with source nitrogen.The utility model is that the high-density graphite goods are made.
Use of the present utility model:
1, the screw thread with the entrance 4 of the utility model inlet pipe 3 is connected with metal tube, and metal tube is connected with source nitrogen.
2, connect complete after, the utility model is immersed in light alloy liquid, generally in stove, the light alloy liquid degree of depth is 500mm, and the utility model is immersed light alloy liquid bottom fully, the metal tube of top nitrogen inlet exposes liquid level.
3, open nitrogen, set nitrogen pressure 0.3Mpa, flow 100L/min.
4, at trunnion of the present utility model position, effect due to stream of nitrogen gas, produce negative pressure at the rear portion, attract light alloy liquid to enter the utility model inside, light alloy liquid mixes with nitrogen at the trunnion position, forms a large amount of tiny bubbles, and tiny bubble slows down at expansion segment, nitrogen fully contacts with light alloy liquid, and the hydrogen in light alloy liquid enters nitrogen bubble under the effect of partial pressure difference.
5, nitrogen bubble can float rapidly after the utility model ejection, in the process of floating, the hydrogen in light alloy liquid also can continue to enter nitrogen bubble, until nitrogen bubble equates with hydrogen dividing potential drop in light alloy liquid, nitrogen bubble emersion light alloy liquid is removed hydrogen on the lenient side in aluminium alloy.
6, can form a light alloy liquid purification system by a plurality of the utility model, greatly increase degassing effect.
7, the utility model not only can be realized degasification in stove, and can online degasification in the alloy casting process.
Claims (2)
1. a light metal blowing purification is processed shower nozzle, and it is characterized in that: comprise a trunnion section and expansion section, section is provided with inlet pipe at trunnion, and inlet pipe is connected with trunnion section.
2. light metal blowing purification according to claim 1 is processed shower nozzle, it is characterized in that: described inlet pipe is perpendicular to trunnion section, and inlet pipe is one 90 degree elbow after entering throat, the corresponding expansion section of elbow opening direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220673546 CN202968662U (en) | 2012-12-10 | 2012-12-10 | Light metal jetting and purifying treatment spray head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220673546 CN202968662U (en) | 2012-12-10 | 2012-12-10 | Light metal jetting and purifying treatment spray head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202968662U true CN202968662U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220673546 Expired - Fee Related CN202968662U (en) | 2012-12-10 | 2012-12-10 | Light metal jetting and purifying treatment spray head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202968662U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105056276A (en) * | 2015-08-21 | 2015-11-18 | 江苏新美星包装机械股份有限公司 | Hydrogen peroxide sterilizing device |
-
2012
- 2012-12-10 CN CN 201220673546 patent/CN202968662U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105056276A (en) * | 2015-08-21 | 2015-11-18 | 江苏新美星包装机械股份有限公司 | Hydrogen peroxide sterilizing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170720 Address after: 441700 Gucheng Economic Development Zone, Hubei, Xiangfan Patentee after: HUBEI JINYANG RESOURCES CO., LTD. Address before: 441700 Gucheng economic and Technological Development Zone, Hubei, Xiangfan Patentee before: Jinyang Metallurgical Co., Ltd., Hubei Prov. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20201210 |