CN105925747A - High-performance slag collecting agent - Google Patents
High-performance slag collecting agent Download PDFInfo
- Publication number
- CN105925747A CN105925747A CN201610357793.1A CN201610357793A CN105925747A CN 105925747 A CN105925747 A CN 105925747A CN 201610357793 A CN201610357793 A CN 201610357793A CN 105925747 A CN105925747 A CN 105925747A
- Authority
- CN
- China
- Prior art keywords
- powder
- minutes
- slag
- clay
- stirring
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/10—Making spheroidal graphite cast-iron
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0037—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by injecting powdered material
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0087—Treatment of slags covering the steel bath, e.g. for separating slag from the molten metal
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/064—Dephosphorising; Desulfurising
- C21C7/0645—Agents used for dephosphorising or desulfurising
-
- 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
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Detergent Compositions (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention discloses a high-performance slag collecting agent which is prepared from the following components: clay, modified perlite, straw ash, forsterite powder, pottery clay powder, zeolite powder, sepiolite powder, mullite powder, hollow glass microsphere powder, pyrophillite powder and palygorskite powder. The slag collecting agent provided by the invention resists high temperature, has favorable heat-resistance and thermal-insulation effects, keeps a nodulizing process stable, has high slag removal efficiency and does not affect the components of molten iron; iron slag is fragile after being cooled, so that the iron slag is convenient to recover and the loss of the molten iron is can be reduced; and the slag collecting agent can change the form of desulfurized slag to reduce the slag content of the molten iron entering a converter and the phenomenon of molten iron resulfurization, the loss of iron is reduced by an average of 48%, and on average, the desulfurized molten iron contains about 0.061% of sulfur.
Description
Technical field
The present invention relates to molding sand and make field, particularly relate to a kind of high-performance collection slag agent.
Background technology
Spheroidal graphite cast-iron is 20th century a kind of high-strength cast iron materials of growing up of the fifties, and its combination property, close to steel, is based on the performance of its excellence, is successfully used to cast some stress complicated, and intensity, toughness, wearability require higher part.Globular graphite is obtained in process of production by nodularization and inoculation, it is effectively improved the mechanical performance of cast iron, improve plasticity and toughness simultaneously, but containing substantial amounts of sulphur in the source of raw material, affect the nodularization process of graphite aborning, slag rake is directly used to skim, affect and beyond the quality of gained spheroidal graphite cast-iron, also can extend slag-removing time, cause wastage of material, the collection slag agent consumption that currently there are is big, slag removal is complicated, needs a kind of high-performance collection slag agent to change this present situation.
At present, increasing producer uses perlite to make the slagging-off of molten iron, heat preserving agent.Using discovery: after perlite is sprinkling upon molten iron surface, the part of contact molten iron is melted expanded under high temperature action, and upper strata perlite is not melted into free particles because temperature is low.Time lengthening, in free particles, moisture is the most expanded, produces phenomenon of jumping, and easily flows into die cavity with molten iron during cast.Produce G. Iron Castings many employings unchoked running system, therefore foundry goods is easily generated folder perlite defect.
Summary of the invention
It is an object of the invention to provide a kind of high-performance collection slag agent.
The present invention is achieved through the following technical solutions:
A kind of high-performance collection slag agent, is made up of following component, clay 7, modified pearl rock 42, rice-straw ash 8, forsterite powder 5, potter's clay powder 5, zeolite powder 3, sepiolite powder 6, mullite powder 2, hollow glass micropearl powder 6, pyrophyllite powder 3, palygorskite powder 3 by weight；
Described modified pearl rock is made up of following component by weight: perlite 45, lauryl sodium sulfate 0.6, sodium citrate 1.1, D-sorbite 2, silester 1, glycerine 1, glutaric acid 0.8, sodium metasilicate 1；Its preparation method is: after 1. being mixed with silester by D-sorbite, uses heating water bath, temperature is controlled to 35 DEG C, keep 5 minutes；2. perlite, sodium citrate is the most admixed together with glycerine, it is heated to 65 DEG C, after being incubated 10 minutes, is cooled to room temperature, obtains mixture 1；3. by glutaric acid, sodium metasilicate with 1. in D-sorbite the most admixed together with silester, be heated to 52 DEG C, after 10 minutes, be cooled to room temperature, obtain mixture 2；4. 2. middle mixture 1 is added in mixture 2, after stirring, stands 20 minutes, filter, use clear water washing, dry,；Described perlite is made up of following component by mass percentage: silica 78%, aluminum oxide 12%, di-iron trioxide 2.2%, calcium oxide 2.0%, potassium oxide 1.5%, sodium oxide molybdena 1%, magnesia 0.4%, water 2.9%；
After the sodium bicarbonate solution that described palygorskite powder uses mass concentration to be 5.6% soaks 10 hours, filter, dry；Described clay uses mass concentration to be the soaking in sodium carbonate solution of 10% after 1 day, filters, after washing, and natural air drying；
Described rice-straw ash is the rice-straw ash made through imperfect combustion；
Described pyrophyllite powder, zeolite powder and mullite powder were respectively through 524 DEG C of high-temperature calcinations 10 minutes.
The preparation method of a kind of high-performance collection slag agent, is made up of following making step:
(1) each raw material is crossed respectively 45 mesh sieves；
(2) first by the forsterite powder of corresponding component, potter's clay powder, zeolite powder, sepiolite powder, mullite powder, hollow glass micropearl powder, pyrophyllite powder, palygorskite powder all adds in batch mixer, with 250r/min speed, after stirring 10 minutes, it is subsequently adding clay and carries out stirring, with 300r/min speed for the second time, add rice-straw ash after stirring 15 minutes to carry out stirring for the third time, with 350r/min speed, keep 15 minutes, be subsequently adding modified pearl rock and carry out the 4th stirring, with 400r/min speed, stir 45 minutes；
3) powder stirred being put into drying baker to dry, drying temperature is 320 DEG C, and after keeping 20 minutes, Temperature fall carries out obtaining finished product, weight packaging.
The present invention is through substantial amounts of experimental study, by perlite is modified, improve perlitic structure and character so that after perlite is sprinkling upon molten iron surface, contact molten iron part under high temperature action can Flashmelt expanded, and upper strata perlite also is able to the most melted expanded, therefore upper strata perlite will not become free particles, thus avoids because in free particles, moisture is the most expanded, produces phenomenon of jumping, easily flow into die cavity with molten iron during cast, affect casting quality.
Rice-straw ash is used to there is problems in that rice-straw ash covers on high temperature liquid iron surface as collection slag agent, the cover layer formed, is loose structure, intensity difference, it is difficult to stop that the fritter aggregation that minority is loose easily pours into die cavity with molten iron at casting process, therefore needs to set special messenger's pushing off the slag.The cover layer air-tightness that rice-straw ash is formed is very poor, is effectively isolated very poor to molten iron and air；The present invention finds through lot of experiments, unburnt rice-straw ash is used to coordinate through modified perlite and clay, can solve the problem that the problems referred to above that conventional rice-straw ash is run into as collection slag agent, and, made collection slag agent, more easy to clean, molten iron can be effectively isolated with air, heat-insulating property is greatly improved, and collection slag efficiency obtains huge raising.
By quantitative, clay, modified pearl rock, rice-straw ash, forsterite powder, potter's clay powder, zeolite powder, sepiolite powder, mullite powder, hollow glass micropearl powder, pyrophyllite powder, palygorskite powder are carried out proportioning preparation collection slag agent, each composition is mutually collaborative to be promoted, the collection slag agent making preparation not only has good poly-slag performance, covering performance is good, good heat insulating, the optimum efficiency of sulphur removal, dephosphorization can also be realized, steel, molten iron can be realized good insulation, absorb and be mingled with, avoid molten steel recarburization, the most quickly absorb the sulphur P elements in molten iron.
The invention has the beneficial effects as follows, compared with prior art:
It is good that the present invention collects slag agent agent spreadability, high temperature resistant, has extraordinary heat resistanceheat resistant insulation effect, can be effectively isolated molten iron with air, making nodularization process steady, slagging-off rate is high, does not affect hot metal composition, in fragility after scum cooling, it is simple to reclaim, it is possible to reduce molten iron loss；Can change de-rear slag form, in minimizing entrance converter, the molten iron quantity of slag and molten iron return sulphur phenomenon, and average iron loss reduces 48%, and after taking off, Sulfur Content in Hot Iron is averagely about 0.0061%；By each composition in the quantitative proportioning present invention, thus the collection slag agent made is to molten iron slag gathering, high insulating effect, thermal radiation little, dirty seven is light, all has no adverse effects chemical composition, metallographic structure, mechanical performance and the casting quality of molten iron, greatly improves the quality of foundry goods.
Detailed description of the invention
A kind of high-performance collection slag agent, is made up of following component, clay 7, modified pearl rock 42, rice-straw ash 8, forsterite powder 5, potter's clay powder 5, zeolite powder 3, sepiolite powder 6, mullite powder 2, hollow glass micropearl powder 6, pyrophyllite powder 3, palygorskite powder 3 by weight；
Described modified pearl rock is made up of following component by weight: perlite 45, lauryl sodium sulfate 0.6, sodium citrate 1.1, D-sorbite 2, silester 1, glycerine 1, glutaric acid 0.8, sodium metasilicate 1；Its preparation method is: after 1. being mixed with silester by D-sorbite, uses heating water bath, temperature is controlled to 35 DEG C, keep 5 minutes；2. perlite, sodium citrate is the most admixed together with glycerine, it is heated to 65 DEG C, after being incubated 10 minutes, is cooled to room temperature, obtains mixture 1；3. by glutaric acid, sodium metasilicate with 1. in D-sorbite the most admixed together with silester, be heated to 52 DEG C, after 10 minutes, be cooled to room temperature, obtain mixture 2；4. 2. middle mixture 1 is added in mixture 2, after stirring, stands 20 minutes, filter, use clear water washing, dry,；Described perlite is made up of following component by mass percentage: silica 78%, aluminum oxide 12%, di-iron trioxide 2.2%, calcium oxide 2.0%, potassium oxide 1.5%, sodium oxide molybdena 1%, magnesia 0.4%, water 2.9%；
After the sodium bicarbonate solution that described palygorskite powder uses mass concentration to be 5.6% soaks 10 hours, filter, dry；Described clay uses mass concentration to be the soaking in sodium carbonate solution of 10% after 1 day, filters, after washing, and natural air drying；
Described rice-straw ash is the rice-straw ash made through imperfect combustion；
Described pyrophyllite powder, zeolite powder and mullite powder were respectively through 524 DEG C of high-temperature calcinations 10 minutes.
The preparation method of a kind of high-performance collection slag agent, is made up of following making step:
(1) each raw material is crossed respectively 45 mesh sieves；
(2) first by the forsterite powder of corresponding component, potter's clay powder, zeolite powder, sepiolite powder, mullite powder, hollow glass micropearl powder, pyrophyllite powder, palygorskite powder all adds in batch mixer, with 250r/min speed, after stirring 10 minutes, it is subsequently adding clay and carries out stirring, with 300r/min speed for the second time, add rice-straw ash after stirring 15 minutes to carry out stirring for the third time, with 350r/min speed, keep 15 minutes, be subsequently adding modified pearl rock and carry out the 4th stirring, with 400r/min speed, stir 45 minutes；
3) powder stirred being put into drying baker to dry, drying temperature is 320 DEG C, and after keeping 20 minutes, Temperature fall carries out obtaining finished product, weight packaging.
Obtained collection slag agent physical property is as follows:
| The coefficient of expansion | Mohs' hardness | Proportion (g/cm) | Fusion temperature (DEG C) | |
| The present invention collects slag agent | 7.2 | 6.5 | 1.28 | 1285 |
| Ordinary pearl rock collection slag agent | 5.8 | 4.1 | 1.31 | 1128 |
Table 1
As can be seen from Table 1, collecting slag agent in the present invention, high temperature resistant, the coefficient of expansion is big, it is ensured that nodularization process steady, and proportion meets standard.
Claims (2)
1. a high-performance collection slag agent, it is characterized in that, it is made up of following component by weight, clay 7, modified pearl rock 42, rice-straw ash 8, forsterite powder 5, potter's clay powder 5, zeolite powder 3, sepiolite powder 6, mullite powder 2, hollow glass micropearl powder 6, pyrophyllite powder 3, palygorskite powder 3；
Described modified pearl rock is made up of following component by weight: perlite 45, lauryl sodium sulfate 0.6, sodium citrate 1.1, D-sorbite 2, silester 1, glycerine 1, glutaric acid 0.8, sodium metasilicate 1；Its preparation method is: after 1. being mixed with silester by D-sorbite, uses heating water bath, temperature is controlled to 35 DEG C, keep 5 minutes；2. perlite, sodium citrate is the most admixed together with glycerine, it is heated to 65 DEG C, after being incubated 10 minutes, is cooled to room temperature, obtains mixture 1；3. by glutaric acid, sodium metasilicate with 1. in D-sorbite the most admixed together with silester, be heated to 52 DEG C, after 10 minutes, be cooled to room temperature, obtain mixture 2；4. 2. middle mixture 1 is added in mixture 2, after stirring, stands 20 minutes, filter, use clear water washing, dry,；Described perlite is made up of following component by mass percentage: silica 78%, aluminum oxide 12%, di-iron trioxide 2.2%, calcium oxide 2.0%, potassium oxide 1.5%, sodium oxide molybdena 1%, magnesia 0.4%, water 2.9%；
After the sodium bicarbonate solution that described palygorskite powder uses mass concentration to be 5.6% soaks 10 hours, filter, dry；Described clay uses mass concentration to be the soaking in sodium carbonate solution of 10% after 1 day, filters, after washing, and natural air drying；
Described rice-straw ash is the rice-straw ash made through imperfect combustion；
Described zeolite powder, pyrophyllite powder and mullite powder were respectively through 524 DEG C of high-temperature calcinations 10 minutes.
The preparation method of a kind of high-performance collection slag agent the most according to claim 1, it is characterised in that be made up of following making step:
(1) each raw material is crossed respectively 45 mesh sieves；
(2) first by the forsterite powder of corresponding component, potter's clay powder, zeolite powder, sepiolite powder, mullite powder, hollow glass micropearl powder, pyrophyllite powder, palygorskite powder all adds in batch mixer, with 250r/min speed, after stirring 10 minutes, it is subsequently adding clay and carries out stirring, with 300r/min speed for the second time, add rice-straw ash after stirring 15 minutes to carry out stirring for the third time, with 350r/min speed, keep 15 minutes, be subsequently adding modified pearl rock and carry out the 4th stirring, with 400r/min speed, stir 45 minutes；
3) powder stirred being put into drying baker to dry, drying temperature is 320 DEG C, and after keeping 20 minutes, Temperature fall carries out obtaining finished product, weight packaging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610357793.1A CN105925747A (en) | 2016-05-26 | 2016-05-26 | High-performance slag collecting agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610357793.1A CN105925747A (en) | 2016-05-26 | 2016-05-26 | High-performance slag collecting agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105925747A true CN105925747A (en) | 2016-09-07 |
Family
ID=56842277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610357793.1A Pending CN105925747A (en) | 2016-05-26 | 2016-05-26 | High-performance slag collecting agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105925747A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114734035A (en) * | 2022-03-14 | 2022-07-12 | 嘉兴数字三维智能制造研究院有限公司 | Metal powder for 3D printing and preparation method thereof |
| CN115341154A (en) * | 2022-09-21 | 2022-11-15 | 南通瑞泰针业有限公司 | High-toughness and high-strength sewing machine needle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928802A (en) * | 2010-08-09 | 2010-12-29 | 新兴铸管股份有限公司 | Slag conglomeration method for nodulizing ladle |
| CN103537636A (en) * | 2013-10-29 | 2014-01-29 | 新疆华莎能源股份有限公司 | Molten steel and molten iron slag accretion heat insulation covering agent with sulphur and phosphorous removal function |
| CN104513879A (en) * | 2015-01-01 | 2015-04-15 | 天津市万路科技有限公司 | Method for treating molten iron |
| CN105039630A (en) * | 2015-08-20 | 2015-11-11 | 合肥市田源精铸有限公司 | Titanium-containing efficient slag remover and preparing method |
-
2016
- 2016-05-26 CN CN201610357793.1A patent/CN105925747A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928802A (en) * | 2010-08-09 | 2010-12-29 | 新兴铸管股份有限公司 | Slag conglomeration method for nodulizing ladle |
| CN103537636A (en) * | 2013-10-29 | 2014-01-29 | 新疆华莎能源股份有限公司 | Molten steel and molten iron slag accretion heat insulation covering agent with sulphur and phosphorous removal function |
| CN104513879A (en) * | 2015-01-01 | 2015-04-15 | 天津市万路科技有限公司 | Method for treating molten iron |
| CN105039630A (en) * | 2015-08-20 | 2015-11-11 | 合肥市田源精铸有限公司 | Titanium-containing efficient slag remover and preparing method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114734035A (en) * | 2022-03-14 | 2022-07-12 | 嘉兴数字三维智能制造研究院有限公司 | Metal powder for 3D printing and preparation method thereof |
| CN115341154A (en) * | 2022-09-21 | 2022-11-15 | 南通瑞泰针业有限公司 | High-toughness and high-strength sewing machine needle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102815965B (en) | Porous ceramsite made of low-silicon iron tailings and preparation method of porous ceramsite | |
| CN109052969B (en) | Method for producing microcrystalline glass by using calcium iron garnet type red mud | |
| CN103100649A (en) | Method for preparing high-adhesiveness solid-mold casting coating material | |
| CN105925748A (en) | High-efficiency slag collecting agent | |
| CN106278176B (en) | A kind of high-strength ceramic granule and preparation method thereof | |
| CN106148684A (en) | The method and system of comprehensive utilization red mud | |
| CN107235738A (en) | A kind of preparation method of fiber reinforced refractory material | |
| CN104556702A (en) | Method for preparing high-alkalinity glass ceramic from metallurgical slag | |
| CN105925747A (en) | High-performance slag collecting agent | |
| CN103880441A (en) | Microporous lightweight corundum refractory aggregate and preparation method thereof | |
| CN102260094B (en) | Preparation method of diffuse type permeable material | |
| CN100462334C (en) | Light thermal insulation fire-resistant pouring material by blast furnace slag and preparation process thereof | |
| CN106048302B (en) | A kind of founding materials for being applied to nuclear power and wind-powered electricity generation and preparation method thereof | |
| CN1686636A (en) | Steel, molten iron slag gathering heat insulating covering agent possessing sulfur phosphorus eliminating function | |
| CN105039630A (en) | Titanium-containing efficient slag remover and preparing method | |
| CN103170592B (en) | Tundish covering agent prepared by using blast furnace slag | |
| CN106399676A (en) | Method and system for processing red mud | |
| CN110666113A (en) | Slag remover for cast iron smelting and preparation method thereof | |
| CN107354267A (en) | A kind of heat preserving agent for liquid steel | |
| CN103100654A (en) | Preparation method of high-strength full mold casting coating | |
| CN106048126A (en) | Heat-preservation slag collecting agent | |
| CN103173592B (en) | Ladle covering agent prepared through utilizing blast furnace slag | |
| CN102296145A (en) | New application of fungus residue and heat-insulating covering agent for metallurgical industry | |
| CN104308106A (en) | Steel ladle covering agent | |
| CN106866114A (en) | A kind of building porcelain granule of lead-zinc smelting fuming furnace slag base and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160907 |
|
| RJ01 | Rejection of invention patent application after publication |