CN112461007A - Preparation method of converter launder - Google Patents
Preparation method of converter launder Download PDFInfo
- Publication number
- CN112461007A CN112461007A CN202011237215.7A CN202011237215A CN112461007A CN 112461007 A CN112461007 A CN 112461007A CN 202011237215 A CN202011237215 A CN 202011237215A CN 112461007 A CN112461007 A CN 112461007A
- Authority
- CN
- China
- Prior art keywords
- launder
- converter
- preparation
- mold
- drying
- 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.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000001035 drying Methods 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 238000007605 air drying Methods 0.000 claims abstract description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 26
- 239000003345 natural gas Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000010687 lubricating oil Substances 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 238000003723 Smelting Methods 0.000 abstract description 5
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005266 casting Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005275 alloying Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
- B28B1/093—Producing shaped prefabricated articles from the material by vibrating or jolting by means directly acting on the material, e.g. by cores wholly or partly immersed in the material or elements acting on the upper surface of the material
- B28B1/0935—Producing shaped prefabricated articles from the material by vibrating or jolting by means directly acting on the material, e.g. by cores wholly or partly immersed in the material or elements acting on the upper surface of the material using only elements wholly or partly immersed in the material, e.g. cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/243—Setting, e.g. drying, dehydrating or firing ceramic articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
- B28B7/388—Treating surfaces of moulds, cores, or mandrels to prevent sticking with liquid material, e.g. lubricating
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a preparation method of a converter launder, and mainly relates to the technical field of aluminum alloy slab ingot smelting. A preparation method of a converter launder comprises the following processes: the method comprises the following steps: manufacturing a special mould for a converter chute according to a drawing, and preparing a required raw material machine tool; step two: assembling the inner mold and the outer mold, pouring the high-strength refractory castable into a stirrer, and stirring; step three: pouring the uniformly stirred castable into a mold, compacting by using a vibration rod, and then starting natural air drying; step four: and naturally drying for 24 hours, taking off the inner mold, taking out the formed runner, and continuously drying the runner. The invention has the beneficial effects that: the damaged converter launder can be replaced independently, the launder replacement time is saved, the whole line is not required to be stopped, and the launder can be replaced by utilizing the production clearance; the damaged launder can be replaced in time, thus ensuring the product quality; the labor intensity of workers is reduced, and potential safety hazards are reduced.
Description
Technical Field
The invention mainly relates to the technical field of aluminum alloy slab ingot smelting, in particular to a preparation method of a converter launder.
Background
The smelting process of the casting plant is a key process, solid materials and electrolytic aluminum water are subjected to melting, alloying and component adjustment in the smelting furnace to be qualified, and then molten aluminum in the smelting furnace is transferred to a holding furnace through a converter launder to continue the next refining operation. At present, the preparation method of the converter chute of the casting plant is an online integral casting type, the total length is about 11 meters, when the chute is replaced at each time, the whole production line is required to be completely shut down, the converter chute is comprehensively crushed by using an air pick, after the whole process of crushing is completed, a new chute is poured again by a support die, after the casting material is naturally air-dried, a chute die is removed, the casting material is slowly baked by using small fire, and after the chute has a certain temperature, the casting material is continuously baked by using big fire until the volume moisture in the chute is completely dried.
The production is stopped, the runner is broken and dried completely, the time is about 7 days before and after the runner is dried, the period is long, and the productivity is seriously influenced; moreover, the worker can work continuously, the working strength is high, and the potential safety hazard is also high.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides the preparation method of the converter launder, the damaged converter launder can be independently replaced, the launder replacement time is saved, the shutdown of the whole line is not needed, and the launder can be replaced by utilizing the production clearance; the damaged launder can be replaced in time, thus ensuring the product quality; the labor intensity of workers is reduced, and potential safety hazards are reduced.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a preparation method of a converter launder comprises the following processes:
the method comprises the following steps: manufacturing a special mould for a converter chute according to a drawing, wherein the special mould comprises an inner mould and an outer mould, and tools and raw materials such as a strong refractory castable, water, a stirrer, a vibration rod, lubricating oil and the like are prepared;
step two: assembling an inner die and an outer die, pouring the high-strength refractory castable into a stirrer, adding a certain proportion of water, and starting stirring until the mixture is uniform;
step three: pouring the uniformly stirred castable into a mold, compacting by using a vibration rod until the mold is fully filled, trowelling the upper edges of the two side walls, and then naturally drying;
step four: and naturally air-drying for 24 hours, taking out the inner mold, taking out the formed launder, continuously drying the launder, heating and baking for at least 24 hours by using natural gas, removing moisture to obtain a converter launder, and then installing the converter launder section by section.
Furthermore, in the second step, after the inner mold and the outer mold are assembled, a layer of lubricating oil is coated on the inner surfaces of the inner mold and the outer mold, so that later demolding is facilitated.
Furthermore, in the fourth step, when natural gas is used for baking, the natural gas is baked by small fire, so that the situation that the converter launder is cracked due to too rapid heating is avoided.
Further, in the fourth step, when the converter launders are installed section by section, seams among the launders are sealed by using refractory mortar, so that aluminum leakage is prevented.
Further, when the converter launder is used, natural gas is needed to preheat the converter launder, and the preheating temperature is 150-.
Compared with the prior art, the invention has the beneficial effects that:
the damaged converter launder can be replaced independently, the launder replacement time is saved, the whole line is not required to be stopped, and the launder can be replaced by utilizing the production clearance; the damaged launder can be replaced in time, thus ensuring the product quality; the labor intensity of workers is reduced, and potential safety hazards are reduced.
Drawings
FIG. 1 is a schematic structural view of a converter launder;
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
As shown in fig. 1, the preparation method of the converter launder of the present invention comprises the following processes:
the method comprises the following steps: manufacturing a special mould for a converter chute according to a drawing, wherein the special mould comprises an inner mould and an outer mould, and tools and raw materials such as a strong refractory castable, water, a stirrer, a vibration rod, lubricating oil and the like are prepared;
step two: assembling an inner die and an outer die, pouring the high-strength refractory castable into a stirrer, adding a certain proportion of water, and starting stirring until the mixture is uniform;
step three: pouring the uniformly stirred castable into a mold, compacting by using a vibration rod until the mold is fully filled, trowelling the upper edges of the two side walls, and then naturally drying;
step four: and naturally air-drying for 24 hours, taking out the inner mold, taking out the formed launder, continuously drying the launder, heating and baking for at least 24 hours by using natural gas, removing moisture to obtain a converter launder, and then installing the converter launder section by section.
Specifically, in the second step, after the inner mold and the outer mold are assembled, a layer of lubricating oil is coated on the inner surfaces of the inner mold and the outer mold, so that later demolding is facilitated.
Specifically, in the fourth step, when natural gas is used for baking, the natural gas is baked by small fire, so that the situation that the converter launder is cracked due to too rapid heating is avoided.
Specifically, in the fourth step, when the converter launders are installed section by section, the joints between the launders are sealed by using refractory mortar, so as to prevent aluminum leakage.
Specifically, when the converter launder is used, natural gas is needed to preheat the converter launder, and the preheating temperature is 150-.
Example (b):
firstly, manufacturing a special mould for a converter chute according to a drawing, wherein the special mould comprises an inner mould and an outer mould, and tools and raw materials such as a strong refractory castable, water, a stirrer, a vibration rod and lubricating oil are prepared; then assembling an inner die and an outer die, pouring the high-strength refractory castable into a stirrer, adding a certain proportion of water, and starting stirring until the mixture is uniform; pouring the uniformly stirred castable into a mold, compacting by using a vibration rod until the mold is fully filled, trowelling the upper edges of the two side walls, and then naturally drying; and then naturally drying the converter launder for 24 hours, taking out the inner mold, taking out the formed launder, continuously drying the launder, heating and baking the converter launder for at least 24 hours by using natural gas, removing water to obtain the converter launder, then installing the converter launder section by section, and sealing seams among the launders by using refractory clay when the converter launder is installed section by section so as to prevent aluminum leakage.
The damaged converter launder can be replaced independently, the launder replacement time is saved, the whole line is not required to be stopped, and the launder can be replaced by utilizing the production clearance; the damaged launder can be replaced in time, thus ensuring the product quality; the labor intensity of workers is reduced, and potential safety hazards are reduced.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. A preparation method of a converter launder is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: manufacturing a special mould for a converter chute according to a drawing, wherein the special mould comprises an inner mould and an outer mould, and tools and raw materials such as a strong refractory castable, water, a stirrer, a vibration rod, lubricating oil and the like are prepared;
step two: assembling an inner die and an outer die, pouring the high-strength refractory castable into a stirrer, adding a certain proportion of water, and starting stirring until the mixture is uniform;
step three: pouring the uniformly stirred castable into a mold, compacting by using a vibration rod until the mold is fully filled, trowelling the upper edges of the two side walls, and then naturally drying;
step four: and naturally air-drying for 24 hours, taking out the inner mold, taking out the formed launder, continuously drying the launder, heating and baking for at least 24 hours by using natural gas, removing moisture to obtain a converter launder, and then installing the converter launder section by section.
2. The converter launder preparation method according to claim 1, characterized in that: in the second step, after the inner die and the outer die are assembled, a layer of lubricating oil is coated on the inner surfaces of the inner die and the outer die so as to facilitate later demoulding.
3. The converter launder preparation method according to claim 1, characterized in that: in the fourth step, when natural gas is used for baking, the natural gas is baked by small fire, so that the situation that the converter launder is cracked due to over-rapid heating is avoided.
4. The converter launder preparation method according to claim 1, characterized in that: in the fourth step, when the converter launders are installed section by section, seams among the launders are sealed by using refractory mortar, so that aluminum leakage is prevented.
5. The converter launder preparation method according to claim 1, characterized in that: when the converter launder is used, natural gas is needed to preheat the converter launder, and the preheating temperature is 150-200 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011237215.7A CN112461007A (en) | 2020-11-09 | 2020-11-09 | Preparation method of converter launder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011237215.7A CN112461007A (en) | 2020-11-09 | 2020-11-09 | Preparation method of converter launder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112461007A true CN112461007A (en) | 2021-03-09 |
Family
ID=74825451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011237215.7A Pending CN112461007A (en) | 2020-11-09 | 2020-11-09 | Preparation method of converter launder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112461007A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0643277A2 (en) * | 1993-09-08 | 1995-03-15 | Mitsubishi Materials Corporation | Melt discharging launder for a metallurgical furnace installation and metallurgical furnace installation using same |
| CN104475692A (en) * | 2015-01-09 | 2015-04-01 | 苏州诺瑞达新材料科技有限公司 | Molten aluminum flowing groove and manufacturing process |
| CN106673672A (en) * | 2015-11-11 | 2017-05-17 | 神华集团有限责任公司 | Composition for preparing molten aluminum runner, molten aluminum runner and preparation method of molten aluminum runner |
| CN210464056U (en) * | 2019-04-08 | 2020-05-05 | 濮阳濮耐高温材料（集团）股份有限公司 | Composite flow guide mechanism for amorphous smelting and amorphous process equipment |
-
2020
- 2020-11-09 CN CN202011237215.7A patent/CN112461007A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0643277A2 (en) * | 1993-09-08 | 1995-03-15 | Mitsubishi Materials Corporation | Melt discharging launder for a metallurgical furnace installation and metallurgical furnace installation using same |
| CN104475692A (en) * | 2015-01-09 | 2015-04-01 | 苏州诺瑞达新材料科技有限公司 | Molten aluminum flowing groove and manufacturing process |
| CN106673672A (en) * | 2015-11-11 | 2017-05-17 | 神华集团有限责任公司 | Composition for preparing molten aluminum runner, molten aluminum runner and preparation method of molten aluminum runner |
| CN210464056U (en) * | 2019-04-08 | 2020-05-05 | 濮阳濮耐高温材料（集团）股份有限公司 | Composite flow guide mechanism for amorphous smelting and amorphous process equipment |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210309 |