CN1031830A - Auto-roasting carbon brick made of anthracite-base for electrocalcining - Google Patents
Auto-roasting carbon brick made of anthracite-base for electrocalcining Download PDFInfo
- Publication number
- CN1031830A CN1031830A CN 87106099 CN87106099A CN1031830A CN 1031830 A CN1031830 A CN 1031830A CN 87106099 CN87106099 CN 87106099 CN 87106099 A CN87106099 A CN 87106099A CN 1031830 A CN1031830 A CN 1031830A
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- CN
- China
- Prior art keywords
- anthracite
- electrocalcining
- roasting
- auto
- base
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- 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.)
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
- C04B35/528—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components
- C04B35/532—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components containing a carbonisable binder
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The present invention relates to a kind of reductibility furnace inner lining material, be auto-roasting carbon brick made of anthracite-base for electrocalcining, it has accurate geometrical dimension, the hot strength height, not dry slag, iron and furnace charge, do not need roasting and reprocessing can build in the stove, utilize the self heat in baker and the stove production process, can sinter solid, fine and close integral body into, and progressively finish greying, its degree of graphitization can reach more than 90%, can stop the silicon anvil to go into furnace bottom effectively, thereby can improve 1～3 times of lining life.Improve output, reduce power consumption.
Description
The present invention is a kind of reductibility furnace inner lining material, i.e. auto-roasting carbon brick made of anthracite-base for electrocalcining.Be used to build by laying bricks or stones the liner of reductibility electric furnace.
For many years, the liner of high-temperature reductibility electric furnace (comprising furnace of calcium carbide, ferroalloy furnace, the hot stove in ore deposit and yellow phosphorus stove etc.) all uses the wide seam of roasting charcoal piece blank to build by laying bricks or stones both at home and abroad.Perhaps build by laying bricks or stones with six accurately machined roasting charcoal piece narrow slits.The wide seam of roasting charcoal piece is built the furnace of calcium carbide furnace bottom by laying bricks or stones, it is heavy to work, be difficult to the charcoal in the slit stuck with paste to smash form solid, little close integral body, cause the electrode paste volume density low strength of inserting in the slit poor, production time not length will go in the wide seam between the roasting charcoal piece owing to the silicon anvil, cause furnace bottom to burn red destruction, even a large amount of silicon iron, calcium carbide take place from the effusive Serious Accident of furnace bottom.Accurately machined roasting charcoal piece is built by laying bricks or stones on the refractory fireclay block of soft layer of sand and dry sand joint filling, becomes one owing to can not bond between the roasting charcoal piece that thin seam is built by laying bricks or stones, and the puzzle joint cohesive strength is low, causes roasting charcoal piece furnace bottom to be difficult to form the high integral body of intensity.Owing to the displacement of charcoal piece, puzzle joint increases this bottom construction in calcium carbide production process, and it is serious that the silicon anvil is gone into furnace bottom.Therefore, up to the present, use roasting charcoal piece to make the reductibility furnace inner lining and fail to solve the silicon anvil always and go into even penetrate the great technical barrier that furnace bottom causes the reductibility electric furnace life-span to lack, yield poorly, energy consumption is high.The magnesium carbonaceous refractory brick that Japanese Patent J57011874 " contains the charcoal basic firebrick " adopts starting material such as magnesium oxide, carbide to bond with organic bond does not have to solve above-mentioned technical barrier preferably yet.
The objective of the invention is to make a kind of carbon line material-auto-roasting carbon brick made of anthracite-base for electrocalcining, the great technical barrier of low, the furnace lining overall construction intensity difference of puzzle joint cohesive strength when adopting the thin seam of precision work roasting charcoal piece to build by laying bricks or stones to solve domestic and international high temperature reduction kiln.And its starting material and proportioning are with to reduce the self-baked charcoal brick that stove uses different fully in the past.
Auto-roasting carbon brick made of anthracite-base for electrocalcining of the present invention is by high temperature electric calcined anthracite (1450～1750 ℃ of calcining temperatures), coal-tar pitch, coal tar and mixing coke powder, and proportioning is mixed as following weight percent.
Electric calcined anthracite is pressed the natural grading granularity 8～0 millimeter 35～75
0.088～0.074 millimeter 10～30 of coal powder size
Coal-tar pitch 8～15
Coal tar 1～8
Mix coke powder 10～20
Pinch being not less than to mix under 130 ℃ the condition.Then, through high frequency pressurization and vibration mode, moulding in the process metal die of processing treatment.Auto-roasting carbon brick made of anthracite-base for electrocalcining has accurate geometrical dimension, and surface smoothness is higher, hot strength height, not dry slag, iron and furnace charge etc.This self-baked charcoal brick need not carry out high-temperature roasting and mechanical workout again and can build and make liner in the stove, utilize in reductibility electric furnace baker and the production process heat of self, can sinter solid, a fine and close integral lining into, and progressively finish the greying crystalline transition, degree of graphitization can reach more than 90%, can stop the silicon anvil to go into furnace bottom effectively, thereby can improve 1～3 times of lining life, improve output, reduce power consumption.
The best proportioning of auto-roasting carbon brick made of anthracite-base for electrocalcining main raw is by weight percentage:
Electric calcined anthracite is pressed the natural grading granularity 8～0 millimeter 55
0.088～0.074 millimeter 16 of coal powder size
Coal-tar pitch 11
Coal tar 4
Mix coke powder 14
Claims (2)
1, a kind of inner lining material auto-roasting carbon brick made of anthracite-base for electrocalcining of reductibility electric furnace is characterized in that electric calcined anthracite, coal-tar pitch, coal tar and mixing coke powder pinch being not less than to mix under 130 ℃ the condition, then through high frequency pressurization, vibratory compaction.
2, material according to claim 1, it is characterized in that the material weight per-cent of described auto-roasting carbon brick made of anthracite-base for electrocalcining is: electric calcined anthracite is pressed 8～0 millimeters of natural grading granularities, 35～75%; 0.088～0.074 millimeter of coal powder size, 10～30%; Coal-tar pitch 8～15%, coal tar 1～8% mixes coke powder 10～20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87106099 CN1031830A (en) | 1987-09-07 | 1987-09-07 | Auto-roasting carbon brick made of anthracite-base for electrocalcining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87106099 CN1031830A (en) | 1987-09-07 | 1987-09-07 | Auto-roasting carbon brick made of anthracite-base for electrocalcining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1031830A true CN1031830A (en) | 1989-03-22 |
Family
ID=4815579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87106099 Pending CN1031830A (en) | 1987-09-07 | 1987-09-07 | Auto-roasting carbon brick made of anthracite-base for electrocalcining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1031830A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603336A (en) * | 2012-03-26 | 2012-07-25 | 河南远洋新材料技术有限公司 | High heat conductivity ramming material |
| CN102674854A (en) * | 2012-05-15 | 2012-09-19 | 平顶山市鲁山瑞星炭素材料有限公司 | Modified low-shrink self-baked carbon brick for calcium carbide furnace |
| CN114292106A (en) * | 2021-12-03 | 2022-04-08 | 曲阜师范大学 | Preparation method for high-quality graphite by rapid coal conversion |
-
1987
- 1987-09-07 CN CN 87106099 patent/CN1031830A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603336A (en) * | 2012-03-26 | 2012-07-25 | 河南远洋新材料技术有限公司 | High heat conductivity ramming material |
| CN102674854A (en) * | 2012-05-15 | 2012-09-19 | 平顶山市鲁山瑞星炭素材料有限公司 | Modified low-shrink self-baked carbon brick for calcium carbide furnace |
| CN114292106A (en) * | 2021-12-03 | 2022-04-08 | 曲阜师范大学 | Preparation method for high-quality graphite by rapid coal conversion |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |