CN1317461A - Mashed carbon paste and method for building furnace with it - Google Patents
Mashed carbon paste and method for building furnace with it Download PDFInfo
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- CN1317461A CN1317461A CN 01108464 CN01108464A CN1317461A CN 1317461 A CN1317461 A CN 1317461A CN 01108464 CN01108464 CN 01108464 CN 01108464 A CN01108464 A CN 01108464A CN 1317461 A CN1317461 A CN 1317461A
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Abstract
A mashed carbon paste for building up furnace is prepared from anthracite, coal asphalt, coke graphite, clinker, silicon carbide and adhesive. The technology for building up furnace with said mashed carbon paste includes uniformly spreading the paste on the mashed surface, vibration stamping, repeating said steps until the furnace is finished, and baking furnace. Its advantages include high quality of liner, long service life of furnace, short construction period, and high flush oxidizing resistance and electric conductivity of furnace.
Description
The present invention is a kind of brickwork with material and utilizes this material to carry out the method for brickwork, especially for the furnace building material and the method for the hot stove in ore deposit.
Useful cold paste carries out brickwork as furnace building material the processing method of smashing in the prior art, this material brickwork crackle in application process is many and big, stratified phenomenon appears easily, make body of heater damage, reduce the life-span of use easily, simultaneously, utilize the method more complicated of this material brickwork, particularly it is subjected to the influence of material character, its baker adopts traditional furnace drying method basically, fuel combustion zone and reach oven drying temperature more than the combustion zone, heat energy but can not effectively be delivered to other relevant ranges, causes can not get good coking; No. 734 literary compositions of Ministry of Metallurgical Industry (77) smelting base word: about the construction technology that the notice of ratifying to try " blast furnace Coldsmashed carbon material inner lining of furnace operating technique tentative specification " is formulated, comprised 1,55 degrees centigrade of material Heating temperatures; 2, the pneumatic machinery ramming is adopted in layering; 3, layering layer thickness 80-100 millimeter; 4, every ply 1/3rd or 1/2nd; 5, molding thickness 50-60 millimeter; 6, compact density 1.5g/cm
3
The objective of the invention is to: provide a kind of and be used for the material of brickwork and utilize this material to carry out the method for brickwork, the plain ramming paste of the charcoal of development is used for brickwork, can be reasonable the problem that exists of solution prior art, material is suitable for the brickwork of various industrial furnaces and uses, such as: ferroalloy furnace, yellow phosphorus stove, zinc smelting furnace, electrolyzer or the like, the plain ramming paste of charcoal is used for the material of the whole brickwork of ore deposit heat, and its relevant technical parameter can be: 1, material Heating temperature 60-90 degree centigrade; 2, layer thickness is not more than 300 millimeters; 3, twice mechanical packing; 4, interlayer technical finesse: be included in layer with layer between spary caking agent behind the hacking, utilize that dovetail-indent joins, prefabricated rivet clasp pin rivet clasp; 5, tamping thickness 180-200 millimeter; 6, compact density is more than or equal to 1.65g/cm
3The method brickwork, the baker that provide, its carbon lining do not ftracture, not stratified, not only can guarantee the liner quality, prolong the work-ing life of stove, but also can improve construction environment, reduction of erection time, cost saving, stove itself has advantages such as antiscour, resistance to oxidation, good conductivity.
The present invention constitutes like this: calculate according to weight percent, it is made through the mode of prior art by 10-40% hard coal, 8-25% coal-tar pitch, 6-15% coke, 6-15% graphite, 5-10% grog, 5-8% silicon carbide, 5-11% tackiness agent, 6-12% tenderizer, specifically: according to heavy
The amount percentage calculation, 30% hard coal, 16% coal-tar pitch, 10% coke, 15% graphite, 13% grog, 3% silicon carbide, 8% tackiness agent, 5% tenderizer are made into through the mode of pulverizing, mixing prior aries such as constantly heating of back, stirring, can add an amount of charcoal element therein, reach purposes such as reducing ash; A kind of method of utilizing the plain ramming paste brickwork of this charcoal evenly is laid on the ramming face with the plain ramming paste thickener of charcoal, then with vibration device shake, tamping, one drive straight on to density more than or equal to 1.65g/cm
3Till, adhesives on the spary behind the plain ramming paste laminar surface of the first layer charcoal of making moulding firm by ramming the hacking evenly is laid on the ramming face with the plain ramming paste thickener of charcoal again, then with vibration device shake, tamping, one drive straight on to density more than or equal to 1.65g/cm
3Till, according to this repeatedly, until finishing the brickwork operation, carry out baker then, baker carries out successively according to the order of bavin baking, electricity baking, underrun, carries out in bavin baking, the electric baking process ventilator trunk being installed in stove, oven drying temperature in the control stove, concrete method is:
1, will heat after cleaning in the stove to 40-70 degree centigrade, at the mixing oil that needs brush one deck cleaning on the working face of ramming, 2, the plain ramming paste thickener of the charcoal that will heat evenly is laid on the ramming face, its thickness is the 250-350 millimeter, then with vibration device shake, tamping, one drive straight on to density more than or equal to 1.65g/cm
3Till; on the plain ramming paste layer of charcoal that this layer made firm by ramming, offer some dovetail-indents and rivet clasp pin-and-hole and prefabricated rivet clasp pin is placed in the rivet clasp pin-and-hole; slit tamping all around; 3; adhesives on the spary behind the plain ramming paste laminar surface of the first layer charcoal of making moulding firm by ramming the hacking is repeated aforesaid method; finish the plain ramming paste layer of second layer charcoal; carry out according to this; until all finishing; 4; baker: lay one deck antioxidation coating material at the plain laminar surface spary one deck protective cover of the charcoal that tamping is good and at furnace bottom; build a circle brick wall along the furnace wall ring then; the brick wall height is higher than the plain layer of furnace wall charcoal; the gap is about 20 centimetres between brick wall and the furnace wall; after furnace bottom is placed the coke of 50 millimeters thickness and a little combustion-supporting charcoal, the first layer air supply duct with holes is installed thereon; place the coke of 150 mm thick more thereon; the air supply duct that the second layer is with holes is arranged at; then firewood is covered the superiors; the igniting baker; the time of this baker is 216 hours; temperature is no more than 800 degree Celsius; baker finishes; in the cleaning stove; carrying out electricity after the part that needs are repaired is repaired dries by the fire; before the electricity baking; Ying Zailu internal surface spary one deck protective cover; coke is filled up in gap between laying bricks wall and the furnace wall; also stack coke at furnace bottom; its stacking is anti-form of pot bottom; its the thickest thickness is 25-30 centimetre; minimum starting gear electric current with this stove starts then; carry out electric oven; time is 48-96 hour; bottom temperature is controlled in 400 degrees centigrade, and furnace wall temperature is controlled in 500 degrees centigrade, the underload that carried out 1-3 month in strict accordance with the relevant working specification operation that feeds intake then; finish the baker program, finish the construction of this hot stove in ore deposit.
Compared with prior art, the present invention combines the preparation characteristics of material, brick fuel and carbon rod between all kinds of charcoals, its characteristics are that it belongs to the semi-graphited carbonaceous material, can thicken the aspect of making firm by ramming, and do not influence compact density and intensity, the method brickwork, the baker that are provided is provided, its carbon lining do not ftracture, not stratified, not only can guarantee the liner quality, prolong the work-ing life of stove, but also can improve construction environment, reduction of erection time, cost saving, and stove itself has advantages such as antiscour, resistance to oxidation, good conductivity, and the present invention has reached goal of the invention.
Accompanying drawing 1,2 all is synoptic diagram of brickwork of the present invention, baker, among the figure: 1-furnace shell, 2-refractory brick, the plain ramming paste layer of 3-charcoal, 4-dovetail-indent, 5-rivet clasp pin, 6-coke, 7-brick wall, 8-second layer air supply duct, 9-firewood, 10-the first layer air supply duct with holes with holes.
Embodiments of the invention 1: 30 kilograms of hard coals, 16 kilograms of coal-tar pitch, 10 kilograms of coke, 15 kilograms of graphite, 13 kilograms of grogs, 3 kilograms of silicon carbide, 8 kilograms of tackiness agent-coal tar, 5 kilograms of tenderizer-SULPHUR POWDER are made the plain ramming paste of charcoal through the mode of pulverizing, mixing prior aries such as constantly heating of back, stirring; 1, will heat after cleaning in the stove to 40-70 degree centigrade, at the mixing oil that needs brush one deck cleaning on the working face of ramming, 2, the plain ramming paste thickener of the charcoal that will heat evenly is laid on the ramming face, its thickness is 300 millimeters, then with vibration device shake, tamping, one drive straight on to density more than or equal to 1.65g/cm
3Till; on the plain ramming paste layer of charcoal that this layer made firm by ramming, offer 5 dovetail-indents and 16 rivet clasp pin-and-holes and prefabricated rivet clasp pin is placed in the rivet clasp pin-and-hole; slit tamping all around; to prevent layering; problems of crack; 3; commercially available adhesives on the spary behind the plain ramming paste laminar surface of the first layer charcoal of making moulding firm by ramming the hacking is repeated aforesaid method; finish the plain ramming paste layer of second layer charcoal; 4; baker: at the commercially available protective cover-oxidation inhibitor of the plain laminar surface spary one deck of charcoal that tamping is good; and at furnace bottom laying one deck antioxidation coating material-river sand; build a circle brick wall along the furnace wall ring then; the brick wall height is higher than the plain layer of furnace wall charcoal; the gap is 20 centimetres between brick wall and the furnace wall; after furnace bottom is placed the coke of 50 millimeters thickness and a little combustion-supporting charcoal, the first layer air supply duct with holes is installed thereon; place the coke of 150 mm thick more thereon; the air supply duct that the second layer is with holes is arranged at; then firewood is covered the superiors; the igniting baker; the time of this baker is 216 hours; temperature is no more than 800 degree Celsius; baker finishes; in the cleaning stove; carrying out electricity after the part that needs are repaired is repaired dries by the fire; before the electricity baking; Ying Zailu internal surface spary one deck protective cover; coke is filled up in gap between laying bricks wall and the furnace wall; also stack coke at furnace bottom, its stacking is anti-form of pot bottom, its thickest thickness is 25-30 centimetre; minimum starting gear electric current with this stove starts then; carry out electric oven; time is 48 hours, and bottom temperature is controlled in 400 degrees centigrade, the furnace wall temperature control
In 500 degrees centigrade, the baker program is finished in the underload that carried out 2 months in strict accordance with the relevant working specification operation that feeds intake then, finishes the construction of this hot stove in ore deposit.
Embodiments of the invention 2: with 25 kilograms of hard coals, 16 kilograms of coal-tar pitch, 10 kilograms of coke, 15 kilograms of graphite, 13 kilograms of grogs, 3 kilograms of silicon carbide, 8 kilograms of tackiness agents, 5 kilograms of tenderizers, the plain mode through prior aries such as constantly heating after pulverizing, mixing, stirrings of charcoal that can add 5 kilograms is therein made the plain ramming paste of charcoal; Construct according to the method that embodiment 1 provides, can make the hot stove in ore deposit.
Utilize in its technical indicator of mineral hot furnace that material provided by the invention builds and the prior art and with the cold mineral hot furnace technical indicator of sticking with paste brickwork of smashing such comparison can be arranged:
Compact density (the g/cm of Carbon ramming paste3): 〉=1.65 cold compact density of smashing paste:＞1.5g
Density g/cm after the roasting of Carbon ramming paste3: density after 〉=1.51 cold roastings of smashing paste:＞1.4
The compressive resistance of Carbon ramming paste (mpa): 〉=21 cold compressive resistances of smashing paste:＞18
Real density (the g/cm of Carbon ramming paste3): the cold real density of smashing paste of 1.81-1.91: 1.84-1.87
The resistivity (Ω mm/m) of the plain ramming paste of charcoal: the cold resistivity of smashing paste of 65-80: 73-90
The softening temperature of the plain ramming paste of charcoal (degree centigrade): the cold softening temperature of smashing paste of 15-90: 25-50
Find out that by data the product that obtains with material provided by the invention and method is apparent in view is better than prior art.
Claims (4)
1, the plain ramming paste of a kind of charcoal, it is characterized in that: calculate according to weight percent, it is made through the mode of prior art by 10-40% hard coal, 8-25% coal-tar pitch, 6-15% coke, 6-15% graphite, 5-10% grog, 5-8% silicon carbide, 5-11% tackiness agent, 6-12% tenderizer.
2, according to the plain ramming paste of the described this charcoal of claim 1, it is characterized in that: calculate according to weight percent, 30% hard coal, 16% coal-tar pitch, 10% coke, 15% graphite, 13% grog, 3% silicon carbide, 8% tackiness agent, 5% tenderizer are made into through the mode of pulverizing, mixing prior aries such as constantly heating of back, stirring, can add an amount of charcoal element therein.
3, a kind of method of utilizing the plain ramming paste brickwork of this charcoal is characterized in that: the plain ramming paste thickener of charcoal evenly is laid on the ramming face, then with vibration device shake, tamping, one drive straight on to density more than or equal to 1.65g/cm
3Till, adhesives on the spary behind the plain ramming paste laminar surface of the first layer charcoal of making moulding firm by ramming the hacking evenly is laid on the ramming face with the plain ramming paste thickener of charcoal again, then with vibration device shake, tamping, one drive straight on to density more than or equal to 1.65g/cm
3Till, according to this repeatedly,, carrying out baker then until finishing the brickwork operation, baker carries out successively according to the order of bavin baking, electricity baking, underrun, carries out in bavin baking, the electric baking process ventilator trunk being installed in stove the oven drying temperature in the control stove.
4, according to the described method of utilizing the plain ramming paste brickwork of this charcoal of claim 3, it is characterized in that: concrete method is:
1, will heat after cleaning in the stove to 40-70 degree centigrade, at the mixing oil that needs brush one deck cleaning on the working face of ramming,
2, the plain ramming paste thickener of the charcoal that will heat evenly is laid on the ramming face, and its thickness is the 250-350 millimeter, then with vibration device shake, tamping, one drive straight on to density more than or equal to 1.65g/cm
3Till, on the plain ramming paste layer of charcoal that this layer made firm by ramming, offer some dovetail-indents and rivet clasp pin-and-hole and prefabricated rivet clasp pin is placed in the rivet clasp pin-and-hole, slit tamping all around,
3, will make behind the plain ramming paste laminar surface of the first layer charcoal hacking of moulding that adhesives repeats aforesaid method on the spary firm by ramming, finish the plain ramming paste layer of second layer charcoal, carry out according to this, until all finishing,
4, baker: lay one deck antioxidation coating material at the plain laminar surface spary one deck protective cover of the charcoal that tamping is good and at furnace bottom; build a circle brick wall along the furnace wall ring then; the brick wall height is higher than between the plain layer of furnace wall charcoal, brick wall and the furnace wall about 20 centimetres in gap; after furnace bottom is placed the coke of 50 millimeters thickness and a little combustion-supporting charcoal, the first layer air supply duct with holes is installed thereon, is placed 150 millimeters more thereon
Thick coke; the air supply duct that the second layer is with holes is arranged at; then firewood is covered the superiors; the igniting baker; the time of this baker is 216 hours; temperature is no more than 800 degree Celsius; baker finishes; clean in the stove, carry out the electricity baking after the part of needs repairing is repaired, before the electricity baking; Ying Zailu internal surface spary one deck protective cover; coke is filled up in gap between laying bricks wall and the furnace wall, also stack coke, its stacking is anti-form of pot bottom at furnace bottom; its the thickest thickness is 25-30 centimetre; minimum starting gear electric current with this stove starts then; carry out electric oven, the time is 48-96 hour, and bottom temperature is controlled in 400 degrees centigrade; furnace wall temperature is controlled in 500 degrees centigrade; the baker program is finished in the underload that carried out 1-3 month in strict accordance with the relevant working specification operation that feeds intake then, finishes the construction of this hot stove in ore deposit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01108464 CN1317461A (en) | 2001-05-24 | 2001-05-24 | Mashed carbon paste and method for building furnace with it |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01108464 CN1317461A (en) | 2001-05-24 | 2001-05-24 | Mashed carbon paste and method for building furnace with it |
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| CN1317461A true CN1317461A (en) | 2001-10-17 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301934C (en) * | 2004-11-01 | 2007-02-28 | 武汉科技大学 | Briquette for iron-smelting blast furnace lining and its preparation method |
| CN1788109B (en) * | 2003-03-12 | 2010-08-11 | 艾尔坎国际有限公司 | High swelling ramming paste for aluminum electrolysis cell |
| CN101885615A (en) * | 2010-06-08 | 2010-11-17 | 武汉科技大学 | C-Si-N silicon steel hearth roller sleeve and manufacture method thereof |
| CN102617176A (en) * | 2012-04-17 | 2012-08-01 | 磐石市昌隆冶金材料有限公司 | Graphite silicon carbon brick |
| CN105347824A (en) * | 2015-11-19 | 2016-02-24 | 湖南祯晟炭素实业有限公司 | Preparation method of cold ramming paste specially used for submerged arc furnace whole furnace construction |
| CN105463509A (en) * | 2015-11-27 | 2016-04-06 | 贵阳铝镁设计研究院有限公司 | Aluminum cell hearth overall molding method and hearth structure |
| CN105648475A (en) * | 2016-03-14 | 2016-06-08 | 中冶天工集团有限公司 | Parallel type synchronous tamping technology for thickener of aluminum cell lining |
| CN107988618A (en) * | 2017-11-14 | 2018-05-04 | 中冶天工集团有限公司 | Aluminium cell hot ramming paste breaking method |
| CN108458595A (en) * | 2018-04-13 | 2018-08-28 | 胡广清 | A kind of mineral hot furnace furnace lining brick fuel and brickwork joint encapsulation process method |
| CN111578712A (en) * | 2020-05-27 | 2020-08-25 | 无锡隆达金属材料有限公司 | Furnace building and baking method for B30 copper-nickel alloy smelting furnace |
| CN114152093A (en) * | 2021-09-23 | 2022-03-08 | 贵州金源锰业股份有限公司 | Method for baking direct current electric furnace |
| CN114315381A (en) * | 2021-11-10 | 2022-04-12 | 湖南祯晟炭素实业有限公司 | Cold ramming paste for integral construction of lining of electric furnace |
| CN115181823A (en) * | 2022-07-08 | 2022-10-14 | 山西太钢不锈钢股份有限公司 | Quantitative construction method for carbon ramming material of blast furnace hearth |
-
2001
- 2001-05-24 CN CN 01108464 patent/CN1317461A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1788109B (en) * | 2003-03-12 | 2010-08-11 | 艾尔坎国际有限公司 | High swelling ramming paste for aluminum electrolysis cell |
| CN1301934C (en) * | 2004-11-01 | 2007-02-28 | 武汉科技大学 | Briquette for iron-smelting blast furnace lining and its preparation method |
| CN101885615A (en) * | 2010-06-08 | 2010-11-17 | 武汉科技大学 | C-Si-N silicon steel hearth roller sleeve and manufacture method thereof |
| CN101885615B (en) * | 2010-06-08 | 2012-09-19 | 武汉科技大学 | C-Si-N silicon steel hearth roller sleeve and manufacture method thereof |
| CN102617176A (en) * | 2012-04-17 | 2012-08-01 | 磐石市昌隆冶金材料有限公司 | Graphite silicon carbon brick |
| CN105347824A (en) * | 2015-11-19 | 2016-02-24 | 湖南祯晟炭素实业有限公司 | Preparation method of cold ramming paste specially used for submerged arc furnace whole furnace construction |
| CN105463509A (en) * | 2015-11-27 | 2016-04-06 | 贵阳铝镁设计研究院有限公司 | Aluminum cell hearth overall molding method and hearth structure |
| CN105648475A (en) * | 2016-03-14 | 2016-06-08 | 中冶天工集团有限公司 | Parallel type synchronous tamping technology for thickener of aluminum cell lining |
| CN107988618A (en) * | 2017-11-14 | 2018-05-04 | 中冶天工集团有限公司 | Aluminium cell hot ramming paste breaking method |
| CN108458595A (en) * | 2018-04-13 | 2018-08-28 | 胡广清 | A kind of mineral hot furnace furnace lining brick fuel and brickwork joint encapsulation process method |
| CN111578712A (en) * | 2020-05-27 | 2020-08-25 | 无锡隆达金属材料有限公司 | Furnace building and baking method for B30 copper-nickel alloy smelting furnace |
| CN114152093A (en) * | 2021-09-23 | 2022-03-08 | 贵州金源锰业股份有限公司 | Method for baking direct current electric furnace |
| CN114152093B (en) * | 2021-09-23 | 2024-04-12 | 贵州金源锰业股份有限公司 | Method for baking DC electric furnace |
| CN114315381A (en) * | 2021-11-10 | 2022-04-12 | 湖南祯晟炭素实业有限公司 | Cold ramming paste for integral construction of lining of electric furnace |
| CN115181823A (en) * | 2022-07-08 | 2022-10-14 | 山西太钢不锈钢股份有限公司 | Quantitative construction method for carbon ramming material of blast furnace hearth |
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