CN112725636A - Molten aluminum deslagging agent and preparation method and application thereof - Google Patents
Molten aluminum deslagging agent and preparation method and application thereof Download PDFInfo
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- CN112725636A CN112725636A CN202011575489.7A CN202011575489A CN112725636A CN 112725636 A CN112725636 A CN 112725636A CN 202011575489 A CN202011575489 A CN 202011575489A CN 112725636 A CN112725636 A CN 112725636A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/06—Obtaining aluminium refining
- C22B21/062—Obtaining aluminium refining using salt or fluxing agents
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/06—Obtaining aluminium refining
- C22B21/064—Obtaining aluminium refining using inert or reactive gases
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
- C22B9/106—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents the refining being obtained by intimately mixing the molten metal with a molten salt or slag
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention discloses a molten aluminum deslagging agent and a preparation method and application thereof, belonging to the technical field of molten aluminum refining, wherein the deslagging agent comprises the following raw materials in parts by weight: 30-50 parts of sodium chloride, 20-40 parts of potassium chloride, 10-20 parts of sodium fluosilicate and 4-8 parts of fluorite, wherein 35 parts of sodium chloride, 25 parts of potassium chloride, 12 parts of sodium fluosilicate and 7 parts of fluorite are prepared into deslagging agents, the deslagging agents are mixed and input into aluminum liquid in a furnace for stirring, gas D is input into the aluminum liquid while stirring, and finally, scum is filtered out, so that refined aluminum purification is completed; through using the infiltration effect of guaranteeing aluminium liquid through sodium chloride and potassium chloride, guarantee the separation of hydrogen in the aluminium liquid through using potassium chloride, because the partial pressure difference of gas D and hydrogen in aluminium liquid is different for during the hydrogen that produces gets into the bubble in the aluminium liquid, then the liquid level of effusion, thereby can detach the hydrogen that produces in the aluminium liquid, avoid the production of gas pocket, and the separation effect is strong.
Description
Technical Field
The invention relates to the technical field of aluminum liquid refining, in particular to an aluminum liquid deslagging agent and a preparation method and application thereof.
Background
When the aluminum alloy is smelted, harmful gas or solid particle impurities are generated due to the reaction of aluminum and water or oxygen in the air, and the aluminum liquid has quality problems such as air holes, cutter beating, slag inclusion and the like during the later deep processing casting, so the aluminum liquid needs to be refined and purified. At present, inert gas is generally singly introduced into aluminum liquid to bring out impurities, and the separation effect of the method is poor.
Disclosure of Invention
The invention aims to provide an aluminum liquid deslagging agent, a preparation method and application thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
an aluminum liquid deslagging agent and a preparation method and application thereof are disclosed, which comprises the following raw materials in parts by weight: 30-50 parts of sodium chloride, 20-40 parts of potassium chloride, 10-20 parts of sodium fluosilicate and 4-8 parts of fluorite.
Preferably, the slag remover comprises the following raw materials in parts by weight: 30-40 parts of sodium chloride, 20-30 parts of potassium chloride, 8-16 parts of sodium fluosilicate and 6-8 parts of fluorite.
Preferably, the slag remover comprises the following raw materials in parts by weight: 35 parts of sodium chloride, 25 parts of potassium chloride, 12 parts of sodium fluosilicate and 7 parts of fluorite.
Preferably, the preparation method of the aluminum liquid deslagging agent specifically comprises the following steps;
weighing the proportioned raw materials according to the weight, primarily drying the weighed raw materials to enable the water content of the raw materials to be less than 2%, respectively crushing the primarily dried raw materials, primarily crushing the raw materials by using a crusher in the field, sieving the crushed raw materials by using a 20-mesh sieve, and fully mixing to obtain a material A;
and (3) drying the material A for the second time to enable the water content of the material A to be less than 0.2% to obtain a material B, crushing the material B for the second time, and sieving the crushed material B through a 50-mesh sieve to obtain a material C.
Preferably, the primary drying temperature is 120-160 ℃.
Preferably, the secondary drying temperature is 200-260 DEG C
Preferably, the application of the molten aluminum deslagging agent is to mix and input the deslagging agent into molten aluminum and stir the deslagging agent, and simultaneously input gas D into the molten aluminum.
Preferably, in the application of the molten aluminum deslagging agent, the gas D comprises 80% of nitrogen, 10% of chlorine and 10% of carbon dioxide. Compared with the prior art, the invention has the beneficial effects that: the deslagging agent guarantees the infiltration effect of aluminium liquid through sodium chloride and potassium chloride through using, guarantee the separation of hydrogen in the aluminium liquid through using potassium chloride, then with gaseous D along with the stirring simultaneously input aluminium liquid inside, carbon dioxide in gaseous D can make nitrogen gas and chlorine carry out fine diffusion, because gaseous D's input can produce the bubble in aluminium liquid, simultaneously because gaseous D and hydrogen partial pressure difference in aluminium liquid are different, make the hydrogen that produces in the aluminium liquid get into in the bubble, then the liquid level escapes, thereby can detach the hydrogen that produces in the aluminium liquid, avoid the production of gas pocket, and the separation effect is strong.
Detailed Description
The examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention. Any obvious modifications or variations can be made to the present invention without departing from the spirit or scope of the present invention.
Example 1
An aluminum liquid deslagging agent comprises the following raw materials in parts by weight: 30 parts of sodium chloride, 20 parts of potassium chloride, 8 parts of sodium fluosilicate and 6 parts of fluorite.
The preparation method of the aluminum liquid deslagging agent specifically comprises the following steps;
weighing the proportioned raw materials according to the weight, primarily drying the weighed raw materials to enable the water content of the raw materials to be less than 2%, respectively crushing the primarily dried raw materials, primarily crushing the raw materials by using a crusher in the field, sieving the crushed raw materials by using a 20-mesh sieve, and fully mixing to obtain a material A;
and (3) drying the material A for the second time to enable the water content of the material A to be less than 0.2% to obtain a material B, crushing the material B for the second time, and sieving the crushed material B through a 50-mesh sieve to obtain a material C.
The primary drying temperature is 140 ℃.
The secondary drying temperature is 220 ℃.
A method of use;
mixing and feeding a deslagging agent into the molten aluminum in the furnace for stirring, so that the mass ratio of the deslagging agent to the molten aluminum is 3%, feeding gas D into the molten aluminum while stirring, wherein the gas D comprises 80% of nitrogen, 10% of chlorine and 10% of carbon dioxide, so that the flow of the gas D is 5m3H refining in furnaceThe temperature is 800 ℃, the refining time is 10 minutes, and finally scum is filtered out to finish the refined aluminum purification.
Example 2
An aluminum liquid deslagging agent comprises the following raw materials in parts by weight: 35 parts of sodium chloride, 25 parts of potassium chloride, 12 parts of sodium fluosilicate and 7 parts of fluorite.
The preparation method of the aluminum liquid deslagging agent specifically comprises the following steps;
weighing the proportioned raw materials according to the weight, primarily drying the weighed raw materials to enable the water content of the raw materials to be less than 2%, respectively crushing the primarily dried raw materials, primarily crushing the raw materials by using a crusher in the field, sieving the crushed raw materials by using a 20-mesh sieve, and fully mixing to obtain a material A;
and (3) drying the material A for the second time to enable the water content of the material A to be less than 0.2% to obtain a material B, crushing the material B for the second time, and sieving the crushed material B through a 50-mesh sieve to obtain a material C.
The primary drying temperature is 140 ℃.
The secondary drying temperature is 220 ℃.
A method of use;
mixing and feeding a deslagging agent into the molten aluminum in the furnace for stirring, so that the mass ratio of the deslagging agent to the molten aluminum is 3%, feeding gas D into the molten aluminum while stirring, wherein the gas D comprises 80% of nitrogen, 10% of chlorine and 10% of carbon dioxide, so that the flow of the gas D is 5m3And h, refining in the furnace at 800 ℃ for 10 minutes, and finally filtering dross to finish refined aluminum purification.
Example 3
An aluminum liquid deslagging agent comprises the following raw materials in parts by weight: 40 parts of sodium chloride, 30 parts of potassium chloride, 16 parts of sodium fluosilicate and 8 parts of fluorite.
The preparation method of the aluminum liquid deslagging agent specifically comprises the following steps;
weighing the proportioned raw materials according to the weight, primarily drying the weighed raw materials to enable the water content of the raw materials to be less than 2%, respectively crushing the primarily dried raw materials, primarily crushing the raw materials by using a crusher in the field, sieving the crushed raw materials by using a 20-mesh sieve, and fully mixing to obtain a material A;
and (3) drying the material A for the second time to enable the water content of the material A to be less than 0.2% to obtain a material B, crushing the material B for the second time, and sieving the crushed material B through a 50-mesh sieve to obtain a material C.
The primary drying temperature is 140 ℃.
The secondary drying temperature is 220 ℃.
A method of use;
mixing and feeding a deslagging agent into the molten aluminum in the furnace for stirring, so that the mass ratio of the deslagging agent to the molten aluminum is 3%, feeding gas D into the molten aluminum while stirring, wherein the gas D comprises 80% of nitrogen, 10% of chlorine and 10% of carbon dioxide, so that the flow of the gas D is 5m3And h, refining in the furnace at 800 ℃ for 10 minutes, and finally filtering dross to finish refined aluminum purification.
Example 4
An aluminum liquid deslagging agent comprises the following raw materials in parts by weight: 35 parts of sodium chloride, 25 parts of potassium chloride, 12 parts of sodium fluosilicate and 7 parts of fluorite.
The preparation method of the aluminum liquid deslagging agent specifically comprises the following steps;
weighing the proportioned raw materials according to the weight, primarily drying the weighed raw materials to enable the water content of the raw materials to be less than 2%, respectively crushing the primarily dried raw materials, primarily crushing the raw materials by using a crusher in the field, sieving the crushed raw materials by using a 20-mesh sieve, and fully mixing to obtain a material A;
and (3) drying the material A for the second time to enable the water content of the material A to be less than 0.2% to obtain a material B, crushing the material B for the second time, and sieving the crushed material B through a 50-mesh sieve to obtain a material C.
The primary drying temperature is 140 ℃.
The secondary drying temperature is 220 ℃.
A method of use;
mixing and feeding the deslagging agent into the aluminum liquid in the furnace for stirring, so that the mass ratio of the deslagging agent to the aluminum liquid3 percent, and introducing gas D into the aluminum liquid while stirring, wherein the gas D comprises 80 percent of nitrogen, 10 percent of chlorine and 10 percent of carbon dioxide, so that the flow of the gas D is 4m3And h, refining in the furnace at 800 ℃ for 10 minutes, and finally filtering dross to finish refined aluminum purification.
Example 5
An aluminum liquid deslagging agent comprises the following raw materials in parts by weight: 35 parts of sodium chloride, 25 parts of potassium chloride, 12 parts of sodium fluosilicate and 7 parts of fluorite.
The preparation method of the aluminum liquid deslagging agent specifically comprises the following steps;
weighing the proportioned raw materials according to the weight, primarily drying the weighed raw materials to enable the water content of the raw materials to be less than 2%, respectively crushing the primarily dried raw materials, primarily crushing the raw materials by using a crusher in the field, sieving the crushed raw materials by using a 20-mesh sieve, and fully mixing to obtain a material A;
and (3) drying the material A for the second time to enable the water content of the material A to be less than 0.2% to obtain a material B, crushing the material B for the second time, and sieving the crushed material B through a 50-mesh sieve to obtain a material C.
The primary drying temperature is 140 ℃.
The secondary drying temperature is 220 ℃.
A method of use;
mixing and feeding a deslagging agent into the molten aluminum in the furnace for stirring, so that the mass ratio of the deslagging agent to the molten aluminum is 3%, feeding gas D into the molten aluminum while stirring, wherein the gas D comprises 80% of nitrogen, 10% of chlorine and 10% of carbon dioxide, so that the flow of the gas D is 6m3And h, refining in the furnace at 800 ℃ for 10 minutes, and finally filtering dross to finish refined aluminum purification.
The working principle of the embodiment is as follows: the deslagging agent is firstly input into the aluminum liquid and then continuously stirred, the deslagging agent ensures the infiltration effect of the aluminum liquid through sodium chloride and potassium chloride, the separation of hydrogen in the aluminum liquid is ensured through potassium chloride, then the gas D is simultaneously input into the aluminum liquid along with stirring, carbon dioxide in the gas D can enable nitrogen and chlorine to be well diffused, bubbles can be generated in the aluminum liquid due to the input of the gas D, and meanwhile, the hydrogen generated in the aluminum liquid enters the bubbles and then escapes from the liquid surface due to different partial pressure differences of the gas D and the hydrogen in the aluminum liquid, so that the hydrogen generated in the aluminum liquid can be removed, and the generation of air holes is avoided.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The molten aluminum deslagging agent is characterized by comprising the following raw materials in parts by weight: 30-50 parts of sodium chloride, 20-40 parts of potassium chloride, 10-20 parts of sodium fluosilicate and 4-8 parts of fluorite.
2. The molten aluminum deslagging agent of claim 1, wherein the deslagging agent comprises the following raw materials in parts by weight: 30-40 parts of sodium chloride, 20-30 parts of potassium chloride, 8-16 parts of sodium fluosilicate and 6-8 parts of fluorite.
3. The molten aluminum deslagging agent of claim 1, wherein the deslagging agent comprises the following raw materials in parts by weight: 35 parts of sodium chloride, 25 parts of potassium chloride, 12 parts of sodium fluosilicate and 7 parts of fluorite.
4. The method for preparing the molten aluminum deslagging agent according to any one of claims 1 to 3, characterized by comprising the following steps;
(1) weighing the proportioned raw materials according to the weight, primarily drying the weighed raw materials to enable the water content of the raw materials to be less than 2%, respectively crushing the primarily dried raw materials, primarily crushing the raw materials by using a crusher in the field, sieving the crushed raw materials by using a 20-mesh sieve, and fully mixing to obtain a material A;
(2) and (3) drying the material A for the second time to enable the water content of the material A to be less than 0.2% to obtain a material B, crushing the material B for the second time, and sieving the crushed material B through a 50-mesh sieve to obtain a material C.
5. The method for preparing an aluminum liquid deslagging agent as recited in claim 4, wherein the primary drying temperature is 120-160 ℃.
6. The method for preparing an aluminum liquid deslagging agent as recited in claim 4, wherein the secondary drying temperature is 200-260 ℃.
7. The use of an aluminum liquid deslagging agent according to any of claims 1-3, characterized in that the deslagging agent is mixed and fed into the aluminum liquid and stirred, and simultaneously gas D is fed into the aluminum liquid.
8. The use of an aluminum liquid deslagging agent according to claim 7, wherein the composition of the gas D comprises 80% nitrogen, 10% chlorine and 10% carbon dioxide.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011575489.7A CN112725636A (en) | 2020-12-28 | 2020-12-28 | Molten aluminum deslagging agent and preparation method and application thereof |
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| CN202011575489.7A CN112725636A (en) | 2020-12-28 | 2020-12-28 | Molten aluminum deslagging agent and preparation method and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115558820A (en) * | 2022-11-01 | 2023-01-03 | 安徽鑫科铜业有限公司 | Bronze deslagging agent, preparation method and application |
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| CN103757458A (en) * | 2014-02-13 | 2014-04-30 | 江苏博众汽车部件有限公司 | Molten aluminum deslagging agent |
| CN108018449A (en) * | 2017-12-12 | 2018-05-11 | 徐州轩辕铝业有限公司 | A kind of coverture for aluminium alloy smelting and preparation method thereof |
| CN109182781A (en) * | 2018-10-29 | 2019-01-11 | 苏州康索机电有限公司 | A kind of method of smelting for molten aluminum |
| CN111286639A (en) * | 2020-03-25 | 2020-06-16 | 昆明冶金研究院有限公司 | Special slagging agent for regenerated aluminum-silicon alloy and preparation method and application thereof |
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2020
- 2020-12-28 CN CN202011575489.7A patent/CN112725636A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103757458A (en) * | 2014-02-13 | 2014-04-30 | 江苏博众汽车部件有限公司 | Molten aluminum deslagging agent |
| CN108018449A (en) * | 2017-12-12 | 2018-05-11 | 徐州轩辕铝业有限公司 | A kind of coverture for aluminium alloy smelting and preparation method thereof |
| CN109182781A (en) * | 2018-10-29 | 2019-01-11 | 苏州康索机电有限公司 | A kind of method of smelting for molten aluminum |
| CN111286639A (en) * | 2020-03-25 | 2020-06-16 | 昆明冶金研究院有限公司 | Special slagging agent for regenerated aluminum-silicon alloy and preparation method and application thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115558820A (en) * | 2022-11-01 | 2023-01-03 | 安徽鑫科铜业有限公司 | Bronze deslagging agent, preparation method and application |
| CN115558820B (en) * | 2022-11-01 | 2023-11-24 | 广西鑫科铜业有限公司 | Bronze deslagging agent, preparation method and application |
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Application publication date: 20210430 |