CN202372001U - Oxidation burning loss control device for aluminum alloy melting furnace - Google Patents
Oxidation burning loss control device for aluminum alloy melting furnace Download PDFInfo
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- CN202372001U CN202372001U CN2011205443328U CN201120544332U CN202372001U CN 202372001 U CN202372001 U CN 202372001U CN 2011205443328 U CN2011205443328 U CN 2011205443328U CN 201120544332 U CN201120544332 U CN 201120544332U CN 202372001 U CN202372001 U CN 202372001U
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- oxygen
- control valve
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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
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
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Abstract
The utility model discloses an oxidation burning loss control device for an aluminum alloy melting furnace. The device comprises a melting room, a heat preservation room, a melting room gas sampler, a condenser, a furnace gas oxygen content analyzer, a furnace gas oxygen content controller, an oxygen content control valve, a burner, an air control valve, a natural gas control valve, a thermocouple and a temperature sensor. The furnace gas oxygen content controller controls the oxygen content control valve so as to control the supply of oxygen, when the oxygen content of furnace gas in the melting room is higher than a set value, the oxygen content control valve is closed, and when the oxygen content is lower than the set value, the oxygen content control valve is opened to supplement the oxygen. The temperature of the furnace gas in the melting room is set to be between 730 and 750 DEG C, the thermocouple transfers the temperature of the melting room to the temperature sensor, the temperature sensor controls the air valve, and the air valve is linked with the natural gas control valve to control the temperature of the furnace gas in the melting room. By using the technical scheme, the oxygen content of the furnace gas can be effectively controlled, molten aluminum can be kept at proper temperature, and melt oxide included slag and the oxidation burning loss of the surface of the molten aluminum can be reduced.
Description
Technical field
The utility model relates to the melting field, and concrete ground is said and related to a kind of aluminium alloy melting furnace oxidization burning loss control device.
Background technology
Aluminium alloy generally uses natural gas to heat as the energy in fusion process.When using natural gas,, often use flame to spray convection current aluminium is dissolved, and the aluminium liquid after dissolving is heated up for reaching rapidly-soluble purpose as fuel.This mode of heating oxygen proportion in natural gas and air will produce two kinds of situation not at that time: when airborne oxygen is not enough, produce the problem that burning is insufficient, energy consumption big, the heat energy utilization rate is low; When airborne oxygen is excessive, cause the furnace gas atmosphere to be the problem of oxidizing atmosphere.Because beneficial elements such as aluminium, magnesium, titanium, strontium are the activity element in the aluminium alloy; When furnace gas is oxidizing atmosphere; Above element is oxidized to oxides such as aluminium oxide, magnesia, titanium oxide, strontium oxide strontia easily, has increased oxide impurity in the solution, has strengthened the oxidized aluminum alloy scaling loss.The development of advancing by leaps and bounds along with China's aluminum products industry in recent years, the consumption of aluminium and aluminium alloy is only second to ferrous materials has become one of most popular metal material, therefore above exist more and more cause showing great attention to of industry.
Summary of the invention
The utility model is intended to solve above deficiency; A kind of aluminium alloy melting furnace oxidization burning loss control device is provided, and this device can improve the utilization rate of natural gas, reduces the generation of solution oxide slag inclusion effectively; Reduce aluminium liquid oxidation scaling loss, promote aluminium alloy solution cleanliness factor.
The technical scheme that realizes above purpose is: a kind of aluminium alloy melting furnace oxidization burning loss control device comprises melting chamber, moist closet, melting chamber atmosphere sampler, condenser, furnace gas oxygen analyzer, furnace gas oxygen amount controller, oxygen control valve, burner, air shut-off valve, natural gas control valve, thermocouple, temperature sensor.Melting chamber atmosphere sampler is assemblied in the melting chamber zone, melting chamber is got the atmosphere sample delivery in condenser, cool off; Cooled furnace gas sample is analyzed by the furnace gas oxygen analyzer, and analysis result passes to furnace gas oxygen amount controller; Furnace gas oxygen amount controller and oxygen control valve control oxygen making amount supplied burner.When melting chamber furnace gas oxygen content surpassed setting value, oxygen control valve flow reduced; When melting chamber furnace gas oxygen content was lower than setting value, oxygen control valve flow increased the supply of supply oxygen amount, impels natural gas completing combustion.Thermocouple is installed on the furnace wall of melting chamber, and the temperature of melting chamber of test is passed to temperature sensor; The temperature sensor control air valve; Air valve and the interlock of natural gas control valve are controlled the melting chamber temperature; The melting chamber furnace gas temperature is arranged on 730～750 ℃, and natural gas control valve and air shut-off valve are opened the burner igniting heating of burning when temperature reaches 730 ℃ of lower limit temperatures; When temperature reached 750 ℃ of ceiling temperatures, natural gas control valve and air shut-off valve were closed the burn-out heating, effectively control the furnace gas atmosphere temperature through above method.
Adopt technique scheme, can effectively control the furnace gas oxygen content, keep the appropriate temperature of aluminum liquid of melting chamber, reduce the generation of solution oxide slag inclusion and the oxidization burning loss on aluminium liquid surface.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
As shown in Figure 1; A kind of aluminium alloy melting furnace oxidization burning loss control device comprises melting chamber (1), moist closet (2), melting chamber atmosphere sampler (3), condenser (4), furnace gas oxygen analyzer (5), furnace gas oxygen amount controller (6), oxygen control valve (7), burner (8), air shut-off valve (9), natural gas control valve (10), thermocouple (11), temperature sensor (12).Melting chamber atmosphere sampler (3) is assemblied in the melting chamber zone, atmosphere that melting chamber is got is transported in the condenser (4) cools off, and cooled furnace gas sample is analyzed by furnace gas oxygen analyzer (5), and analysis result passes to furnace gas oxygen amount controller (7); The supply of furnace gas oxygen amount controller (6) control oxygen control valve (7) oxygen amount.When melting chamber furnace atmosphere oxygen content surpassed setting value, oxygen control valve (7) reduced flow, the supply of control oxygen making amount; When melting chamber furnace atmosphere oxygen content was lower than setting value, oxygen control valve (7) increased the supply of flow supply oxygen amount, impels natural gas completing combustion.Thermocouple (11) is installed on the furnace wall of melting chamber, and the temperature of melting chamber of test is passed to temperature sensor (12), temperature sensor (12) control air valve (9), and air valve (9) is controlled the melting chamber temperature with natural gas control valve (10) interlock.The melting chamber furnace gas temperature is arranged on 730～750 ℃, and natural gas control valve (10) and air valve (9) are opened burner (8) the igniting heating of burning when temperature reaches 730 ℃ of lower limit temperatures; Natural gas control valve (10) is closed burner (8) burn-out heating with air valve (9) when temperature reaches 750 ℃ of ceiling temperatures, effectively controls temperature in the stove through above method.
Claims (3)
1. an aluminium alloy melting furnace oxidization burning loss control device is characterized in that this device comprises melting chamber (1), moist closet (2), melting chamber atmosphere sampler (3), condenser (4), furnace gas oxygen analyzer (5), furnace gas oxygen amount controller (6), oxygen control valve (7), burner (8), air shut-off valve (9), natural gas control valve (10), thermocouple (11), temperature sensor (12); Melting chamber atmosphere sampler (3) is assemblied in the melting chamber zone, atmosphere that melting chamber is got is transported in the condenser (4) cools off, and cooled furnace gas sample is analyzed by furnace gas oxygen analyzer (5), and analysis result passes to furnace gas oxygen amount controller (7); The supply of furnace gas oxygen amount controller (6) control oxygen control valve (7) oxygen amount; Thermocouple (11) is installed on the furnace wall of melting chamber; The temperature of the melting chamber of testing is passed to temperature sensor (12); Temperature sensor (12) control air valve (9); Air valve (9) is controlled the melting chamber temperature with natural gas control valve (10) interlock, and this device can effectively be controlled melting furnace oxygen content and atmosphere temperature, reduces the generation of solution oxide slag inclusion and the oxidization burning loss on aluminium liquid surface.
2. a kind of aluminium alloy melting furnace oxidization burning loss control device according to claim 1 is characterized in that: when melting chamber furnace atmosphere oxygen content surpassed setting value, oxygen control valve (7) flow reduced, the supply of control oxygen making amount; When melting chamber furnace gas oxygen content was lower than setting value, oxygen control valve (7) flow increased the supply of supply oxygen amount, impels natural gas completing combustion.
3. a kind of aluminium alloy melting furnace oxidization burning loss control device according to claim 1; It is characterized in that: the melting chamber furnace gas temperature is arranged on 730～750 ℃, and natural gas control valve (10) and air valve (9) are opened burner (8) the igniting heating of burning when temperature reaches 730 ℃ of lower limit temperatures; Natural gas control valve (10) is closed burner (8) burn-out heating with air valve (9) when temperature reaches 750 ℃ of ceiling temperatures, effectively controls temperature in the stove through above method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205443328U CN202372001U (en) | 2011-12-20 | 2011-12-20 | Oxidation burning loss control device for aluminum alloy melting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205443328U CN202372001U (en) | 2011-12-20 | 2011-12-20 | Oxidation burning loss control device for aluminum alloy melting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202372001U true CN202372001U (en) | 2012-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205443328U Expired - Fee Related CN202372001U (en) | 2011-12-20 | 2011-12-20 | Oxidation burning loss control device for aluminum alloy melting furnace |
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| Country | Link |
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| CN (1) | CN202372001U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712468A (en) * | 2013-12-17 | 2014-04-09 | 聚光科技(杭州)股份有限公司 | Combustion control system and method for lowering oxygenation burning losses of industrial furnace |
-
2011
- 2011-12-20 CN CN2011205443328U patent/CN202372001U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712468A (en) * | 2013-12-17 | 2014-04-09 | 聚光科技(杭州)股份有限公司 | Combustion control system and method for lowering oxygenation burning losses of industrial furnace |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20141220 |
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| EXPY | Termination of patent right or utility model |