CN101413757A - Aluminum melting furnace capable of improving service life and thermal efficiency - Google Patents
Aluminum melting furnace capable of improving service life and thermal efficiency Download PDFInfo
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- CN101413757A CN101413757A CNA2008102312233A CN200810231223A CN101413757A CN 101413757 A CN101413757 A CN 101413757A CN A2008102312233 A CNA2008102312233 A CN A2008102312233A CN 200810231223 A CN200810231223 A CN 200810231223A CN 101413757 A CN101413757 A CN 101413757A
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Abstract
An aluminum melting furnace capable of increasing service life and heat efficiency comprises a shell body and a lining layer covered on the inner wall of the shell body. The furnace is characterized in that work layers in the lining layer, namely the work layers of the furnace bottom, the furnace wall and the furnace top, are integrally cast from castable refractory and constructed; wherein, the furnace top is in a flattopping structure as well as the integral cast structure with hanging anchorage bricks, the furnace wall is in a composite structure belonging to a straight vertical surface structure. Being fully cast, the lining of the aluminum melting furnace has no seam, smooth surface, high integral strength, good air tightness and stable structure in use, and can greatly reduce radiation loss and improve the heat efficiency; with nonoxides used in the lining casting material, the material does not shrink, crack, aluminize, uneasily adhere with slag and is not eroded by aluminum alloy melt with high thermal shock stability in the state of smelting operation. Compared with the service life of a traditional brick structure, the service life is improved more than 3 times.
Description
Technical field
The present invention relates to industrial furnace refractory lining technology, relate to a kind of aluminium melting furnace that improves the service life and the thermal efficiency specifically.
Background technology
The various thermotechnical furnace kiln plants that are used for former aluminum casting, acieral melting and solid aluminium fusing etc. of aluminium melting furnace general reference, mainly comprise various capacity holding furnace, leave standstill stove, holding furnace, melting furnace etc.Present domestic aluminium melting furnace furnace lining majority is built by laying bricks or stones by refractory brick and diatomite insulating block and is formed.But this furnace lining structure has following shortcoming: 1. use mud to build refractory brick by laying bricks or stones, the existence of brickwork joint has greatly influenced the globality and the air-tightness of furnace lining.After smelting furnace came into operation, refractory brick and refractory wass produced inconsistent permanent linear shrinkage under the high temperature, caused brickwork joint to strengthen, and made aluminum melt infiltrate brickwork joint and furnace lining dross.When aluminising was serious, lining body, heat-insulation layer even the furnace shell of molten bath part were destroyed by corrode, and it is serious that the body of heater steel plate supports distortion outward, lifts floating on the bottom brick.Because brickwork joint enlarges, the slag disjunctor in the aluminium of infiltration and the stove had both made the dischargeable capacity of burner hearth reduce, and had caused the difficulty of prepurging in the fusion process again, influenced operation process and output.2. furnace roof adopts special shaped brick to build by laying bricks or stones, and complex-shaped, fabrication cycle is long, and difficulty of construction is big, often occurs part in actual the use and falls the brick phenomenon; The furnace roof large tracts of land must be pushed aside when the need modular repair and could change special shaped brick, the repairing difficulty is big, and waste of material is big.3. after masonry arch use a period of time the phenomenon that dislocation is sunk can take place, greatly influence the service life of the heater element of furnace roof setting, increase the loss of heater element.4. the anti-aluminium liquid of chamotte brick erosiveness is relatively poor, and the outward appearance of the clay brick that takes out during from overhaul is observed, and uses brick surface color blackout after 2～3 years, and the permeable formation of 20～30mm is arranged, and surperficial flakey breakaway is serious, and the fragility of brick strengthens.5. the thermal conductivity factor of chamotte brick is higher, and the body of heater heat loss is bigger.The existence of the problems referred to above makes the use of aluminium melting furnace be in reduced levels, and lining durability is short, and the body of heater heat loss is big.Actual operating position statistics, the smelting furnace of general brickwork construction furnace lining are used just must overhaul after 2～3 years.Along with the increase of aluminium alloy kind, composition, atmosphere is increasingly sophisticated in the smelting furnace, more and more higher to the requirement of furnace lining, overcome the performance deficiency of brick liner, improves the smelting furnace furnace lining life-span, improves the thermal efficiency of body of heater, must adopt new inner lining process.
Summary of the invention
The present invention provides a kind of aluminium melting furnace that improves the service life and the thermal efficiency at existing weak point in the above-mentioned prior art just.Fall brick and the not anti-erosion of fire proof material of furnace lining, problem that the body of heater heat loss is bigger to solve traditional brick furnace lining aluminising, dross, furnace roof, thereby the aluminium melting furnace lining durability and the thermal efficiency are greatly improved.
Purpose of the present invention can adopt following technique measures to realize:
Because the aluminium liquid of fusing has extremely strong penetrating power, solving the most basic way of liner aluminising problem is exactly the various seams of eliminating on the liner, and therefore adopting integrated poured liner is the most effective scheme.
Specifically, aluminium melting furnace of the present invention comprises shell body, and is covering the furnace lining layer on the inner walls outside, and the working lining in the described furnace lining layer---the working lining that is furnace bottom, furnace wall, furnace roof all adopts the integrated poured construction of castable refractory to construct; Wherein:
The furnace lining layer concrete structure of the furnace bottom part described in the present invention is as follows: because the furnace bottom working lining is soaked by aluminium liquid for a long time, though do not contact slag and furnace atmosphere, but to effectively resist the erosion and the infiltration of aluminium liquid, therefore when enforcement is integrated poured, castable refractory construction technology once-cast is routinely finished and is got final product, do not stay and establish any Construction Joint, can guarantee that when material property meets the demands furnace bottom does not have the infiltration of aluminium liquid, improves heat insulation effect;
The furnace lining layer concrete structure of the furnace roof part described in the present invention is as follows: damage heating element heater for avoiding brick, strengthen the heat loss of body of heater, the furnace roof working lining adopts anchored brick to hang the integrated poured structure of cooperation.The purpose of using hanger brick is in order to strengthen the Stability Analysis of Structures of furnace roof, to improve bulk strength, avoiding furnace roof to sink.Because heater element is arranged on the furnace roof position, therefore adopt flat-tope structure to strengthen furnace roof and press down, and the refractory ceramic fibre of paving one deck 15-30mm strengthens insulation on the furnace roof pour mass, to improve the efficiency of heating surface.The hanger brick material is selected according to the material of employed liner castable refractory, can use high alumina matter material usually.Need not stay in the material when furnace roof is integrated poured and establish dilatation joint, establish, can guarantee the globality of furnace lining and dilatation joint stayed around the furnace shell.
The furnace lining layer concrete structure of the furnace wall part described in the present invention is as follows: this is the position of most critical in the smelting furnace furnace lining, its top contact furnace atmosphere and slag, and the bottom is soaked by aluminium liquid.So furnace wall has also been done necessary adjustment to its version when adopting the integrated poured working lining of straight formula, adopt compound furnace wall structure.Compound furnace wall structure waters material feeding (or light heat-insulating fire resistant brick)+castable refractory by refractory ceramic fibre+lightweight heat-proof and constitutes, and its purpose is: 1. strengthen the insulation of furnace wall, improve the thermal efficiency of smelting furnace; 2. the castable refractory lining processing can not stay and establish dilatation joint, so utilize the compressibility of refractory ceramic fibre to absorb the expansion that furnace wall material takes place under the high temperature, strengthens the stability of furnace lining, avoids the recurring structure damage; 3. can the attenuate furnace lining, economical with materials is used, and improves the dischargeable capacity of smelting furnace.Described lightweight heat-proof waters material feeding can adopt high alumina matter or clay product.
Integrated poured liner construct all the construction technology that adopts conventional castable refractory, but each position all should once construct and finish, and do not stay and establishes dilatation joint; The Construction Joint of different parts adopts and reserves Cha Kou, scrapes the hair mode such as surface of having constructed and reduces to minimum.
The concrete structure mode of the compound furnace wall structure described in the present invention is as follows: operate outside layer that comprise the intraformational bed that is made of the refractory ceramic fibre material that directly combines with the shell body inwall, is made of castable refractory and the employing lightweight heat-proof between intraformational bed and operate outside layer water the intermediate course that material feeding or light heat-insulating fire resistant brick constitute.
Because aluminium melting furnace is mainly used in the fusing of batching, refining, casting and the solid aluminum of electrolysis primary aluminum, various acierals.The composition of aluminium liquid melt also has Fe in the fusion process except that metallic aluminium
2O
3, SiO
2, AlCl
3, Ti, Mg etc., totally present neutral meta-acid.Analyze the Al in the refractory material from refractory material and the contingent reaction of melt
2O
3React with melt hardly, and the SiO in the material
2, Fe
2O
3Wait other composition but can be by aluminium reducing (2Al+Fe
2O
3→ 2Fe+Al
2O
3, 4Al+3SiO
2→ 3Si+2Al
2O
3), make lining body material take place to corrode and peel off, also in aluminium liquid, increase impurity components such as Si, Fe simultaneously.So when selecting smelting furnace lining material composition, Al wherein
2O
3Content should be high as far as possible, waters any one in material feeding or the corundum pouring material so liner castable refractory material used in the present invention is high alumina castable, mullite; And the thermal conductivity ratio chamotte brick of castable refractory is low, in smelting furnace operating temperature range (700～850 ℃), and the low 0.2～0.5W/mK of the thermal conductivity ratio chamotte brick of high alumina refractory casting material, this also provides condition for the attenuate furnace lining.
Because the strong permeability of aluminium liquid and the wetability good to many materials for the use validity of liner in pouring material in improving, are added non-oxidized substance in watering material feeding.Non-oxidized substance mainly is carborundum (SiC), silicon nitride (Si
3N
4) or Sialon (β-Sialon) in any one or its combination, its addition is 1～15% (use amount that should determine non-oxidized substance according to the size and the smelting technology of aluminium melting furnace) of castable refractory weight.Use non-oxidized substance mainly based on following consideration: 1. non-oxidized substance has performances such as high temperature resistance, anti-erosion, good thermal shock resistance and protectiveness oxidation, is the important source material of making the high-performance refractory material; 2. the wetability of non-oxidized substance and melt is poor, and the infiltration that can reduce the erosion of aluminium liquid and slow down aluminium liquid reduces aluminium liquid and slag adhering on the furnace lining surface simultaneously; 3. the oxidation of non-oxidized substance protectiveness can form fine and close high viscosity glaze layer at material surface, thereby forms diaphragm between material and melt, stops melt intrusion material internal; 4. non-oxidized substance can improve the thermal shock resistance that waters material feeding, avoids material to form crackle under thermal shock repeatedly; 5. can stablize the Volume Changes of watering material feeding, avoid material in use to produce contraction crack; 6. non-oxidized substance has significant enhancing effect to the high-temperature behavior of watering material feeding; 7. non-oxidized substance can also improve the material blackness, strengthens the thermal radiation capability of furnace lining, improves the energy-saving effect of furnace lining.
Beneficial effect of the present invention is as follows:
As seen from the above technical solution, owing to adopted full Pouring lining for furnace (working lining), it is good to make that the aluminium melting furnace furnace lining does not have seam, smooth surface, bulk strength height, air-tightness, Stability Analysis of Structures in use, and can reduce radiation loss greatly, improve the thermal efficiency; Wherein, furnace roof hang Pouring lining for furnace structural strength height, in use do not sink, no faulting of slab ends, do not damage heater element; Compound furnace wall structure can effectively absorb the expansion of furnace lining, avoids the aluminising and the structural destruction that cause because of furnace lining construction technology reason; Water the interpolation use of non-oxidized substance in the material feeding at the furnace lining working lining in addition, make that material does not shrink, do not ftracture under the melting duty, not aluminising, be difficult for dross, be not subjected to that aluminium alloy melt corrodes, the thermal shock resistance height, can improve more than 3 times service life than traditional brick structure life-span; Non-oxidized substance can also improve the material blackness simultaneously, strengthens the thermal radiation capability of furnace lining, improves the energy-saving effect of furnace lining, thereby the whole operational efficiency that improves smelting furnace can make increase substantially the service life of furnace lining, and service life, expectation can reach 6～10 years.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
Sequence number among the figure: 1 anchored brick pull bar set bolt, 2 bodies of heater are steelframe fixedly, 3 anchored brick pull bars, 4 anchored bricks, 5 furnace top insulation layers, 6 furnace roof working linings (furnace roof waters the material feeding working lining), 7 shell bodies, 8 furnace roofs water the dilatation joint between material feeding and shell body, interior filling ceramic fibre, 9 intraformational beds that are made of the refractory ceramic fibre material, 10 adopt lightweight heat-proof to water the intermediate course of material feeding or light heat-insulating fire resistant brick formation, the operate outside layer (the material feeding working lining is watered in the furnace wall) that 11 castable refractories constitute, 12 furnace bottom working linings (furnace bottom waters the material feeding working lining), 13 bottom heat-insulation layers.
The specific embodiment
The present invention is further described below with reference to embodiment, but does not limit the present invention.
The aluminium melting furnace that improves the service life and the thermal efficiency of the present invention comprises shell body 7, and is covering the furnace lining layer on the inner walls outside; Wherein, the working lining in the furnace lining layer---the working lining that is furnace bottom, furnace wall, furnace roof all adopts the integrated poured construction of castable refractory to construct.Specifically:
The furnace lining layer concrete structure of the furnace bottom part described in the present invention is as follows: because furnace bottom working lining 12 is soaked by aluminium liquid for a long time, though do not contact slag and furnace atmosphere, but to effectively resist the erosion and the infiltration of aluminium liquid, therefore when enforcement is integrated poured, castable refractory construction technology once-cast is routinely finished and is got final product, do not stay and establish any Construction Joint, when meeting the demands, material property can guarantee that furnace bottom does not have the infiltration of aluminium liquid, improve heat insulation effect, the present invention is coated with bottom heat-insulation layer 13 being constructed the furnace bottom working lining that forms by the integrated poured construction of castable refractory.
The furnace lining layer concrete structure of the furnace roof part described in the present invention is as follows: damage heating element heater for avoiding brick, strengthen the heat loss of body of heater, furnace roof working lining 6 adopts anchored bricks 4 to hang the integrated poured inner lining structure of cooperation, described anchored brick 4 hang by with body of heater fixedly the anchored brick pull bar 3 that combines of steelframe 2 realize; The purpose of using hanger brick is in order to strengthen the Stability Analysis of Structures of furnace roof, to improve bulk strength, avoiding furnace roof to sink; Because heater element is arranged on the furnace roof position, therefore adopt flat-tope structure to strengthen furnace roof and press down, and at the furnace roof pour mass---the refractory ceramic fibre of paving one deck 15-30mm strengthens heat-insulation layer 5 on the furnace roof working lining 6, to improve the efficiency of heating surface; The hanger brick material is selected according to the material of employed liner castable refractory, can use high alumina matter material usually; Need not stay in the material when furnace roof is integrated poured and establish dilatation joint, establish, can guarantee the globality of furnace lining and dilatation joint stayed around the furnace shell.
The furnace lining layer concrete structure of the furnace wall part described in the present invention is as follows: furnace wall is the position of most critical in the smelting furnace furnace lining, its top contact furnace atmosphere and slag, the bottom is soaked by aluminium liquid, so furnace wall has also been done necessary adjustment to its version when adopting the integrated poured working lining of straight formula, adopt compound furnace wall structure; The concrete structure mode of described compound furnace wall structure is as follows: operate outside layer 11 that comprise the intraformational bed 9 that is made of the refractory ceramic fibre material that directly combines with the shell body inwall, is made of castable refractory and the employing lightweight heat-proof between intraformational bed and operate outside layer water the intermediate course 10 that material feeding or light heat-insulating fire resistant brick constitute, its purpose is: 1. strengthen the insulation of furnace wall, improve the thermal efficiency of smelting furnace; 2. the castable refractory lining processing can not stay and establish dilatation joint, so utilize the compressibility of refractory ceramic fibre to absorb the expansion that furnace wall material takes place under the high temperature, strengthens the stability of furnace lining, avoids the recurring structure damage; 3. can the attenuate furnace lining, economical with materials is used, and improves the dischargeable capacity of smelting furnace.
Integrated poured liner construct all the construction technology that adopts conventional castable refractory, but each position all should once construct and finish, and do not stay and establishes dilatation joint; The Construction Joint of different parts adopts and reserves Cha Kou, scrapes the hair mode such as surface of having constructed and reduces to minimum.
Because aluminium melting furnace is mainly used in the fusing of batching, refining, casting and the solid aluminum of electrolysis primary aluminum, various acierals.The composition of aluminium liquid melt also has Fe in the fusion process except that metallic aluminium
2O
3, SiO
2, AlCl
3, Ti, Mg etc., totally present neutral meta-acid.Analyze the Al in the refractory material from refractory material and the contingent reaction of melt
2O
3React with melt hardly, and the SiO in the material
2, Fe
2O
3Wait other composition but can be by aluminium reducing (2Al+Fe
2O
3→ 2Fe+Al
2O
3, 4Al+3SiO
2→ 3Si+2Al
2O
3), make lining body material take place to corrode and peel off, also in aluminium liquid, increase impurity components such as Si, Fe simultaneously.So when selecting smelting furnace lining material composition, Al wherein
2O
3Content should be high as far as possible, waters any one in material feeding or the corundum pouring material so liner castable refractory material used in the present invention is high alumina castable, mullite; And the thermal conductivity ratio chamotte brick of castable refractory is low, in smelting furnace operating temperature range (700～850 ℃), and the low 0.2～0.5W/mK of the thermal conductivity ratio chamotte brick of high alumina refractory casting material, this also provides condition for the attenuate furnace lining.
Because the strong permeability of aluminium liquid and the wetability good to many materials for the use validity of liner in pouring material in improving, are added non-oxidized substance in watering material feeding.Non-oxidized substance mainly is carborundum (SiC), silicon nitride (Si
3N
4) or Sialon (β-Sialon) in any one or its combination, its addition is 1～15% (use amount that should determine non-oxidized substance according to the size and the smelting technology of aluminium melting furnace) of castable refractory weight.Use non-oxidized substance mainly based on following consideration: 1. non-oxidized substance has performances such as high temperature resistance, anti-erosion, good thermal shock resistance and protectiveness oxidation, is the important source material of making the high-performance refractory material; 2. the wetability of non-oxidized substance and melt is poor, and the infiltration that can reduce the erosion of aluminium liquid and slow down aluminium liquid reduces aluminium liquid and slag adhering on the furnace lining surface simultaneously; 3. the oxidation of non-oxidized substance protectiveness can form fine and close high viscosity glaze layer at material surface, thereby forms diaphragm between material and melt, stops melt intrusion material internal; 4. non-oxidized substance can improve the thermal shock resistance that waters material feeding, avoids material to form crackle under thermal shock repeatedly; 5. can stablize the Volume Changes of watering material feeding, avoid material in use to produce contraction crack; 6. non-oxidized substance has significant enhancing effect to the high-temperature behavior of watering material feeding; 7. non-oxidized substance can also improve the material blackness, strengthens the thermal radiation capability of furnace lining, improves the energy-saving effect of furnace lining.
Do in conjunction with specific embodiments again below the present invention to describe:
Embodiment 1 (15t aluminium melting furnace)
A, selection are used and have been added the working lining (also can be described as water material feeding working lining) of the high alumina refractory casting material of SiC as furnace lining; The addition of SiC is 10% of a castable refractory weight;
B, furnace shell surface temperature determine that less than 30 ℃ the furnace wall compound Lining is of a size of refractory ceramic fibre+clay light weight matter insulating fire brick+castable refractory=20mm+114mm+230mm, the more former firebrick lining attenuate of furnace wall thickness of inner lining 115mm;
C, furnace roof adopt the flat-top suspension type integrated poured, water the material feeding upper berth and paste the thick refractory fibre of one deck 20mm, use expensive nickel chromium triangle band to change the use Elema into from original heater element;
D, strict by the unshape refractory construction technology construct, maintenance and baking.
E, come into operation after, detect comprehensive furnace lining technology effect and show: the furnace lining heat-insulating property is good, more former brick furnace lining reduces power consumption 30%; Furnace roof intensity height does not find how to be out of shape and crackle; Calculate reduction by 50% by its consuming cost after changing heater element.
Castable refractory composition performance sees Table 1.
Table 1 adds the high alumina refractory casting material measured performance index of non-oxidized substance SiC
Embodiment 2 (25t aluminium melting furnace)
A, selection are used and have been added Si
3N
4The corundum fireproof of+β-Sialon waters the working lining (also can be described as water material feeding working lining) of material feeding as furnace lining; Si
3N
4, β-Sialon addition be respectively 5% (Si of castable refractory weight
3N
4) 3% (β-Sialon);
B, furnace shell surface temperature determine that less than 30 ℃ the furnace wall compound Lining is of a size of refractory ceramic fibre+clay light weight matter insulating fire brick+castable refractory=40mm+180mm+230mm, the more former firebrick lining attenuate of furnace wall thickness of inner lining 65mm;
C, furnace roof adopt the flat-top suspension type integrated poured, water the material feeding upper berth and paste the thick refractory fibre of one deck 40mm, and heater element changes the use Elema into;
D, strict by the unshape refractory construction technology construct, maintenance and baking.
E, come into operation after, show according to the comprehensive result of use of aluminium melting furnace furnace lining is investigated: the monolithic lining heat-insulating property is good; Still smooth, the no dross phenomenon of furnace lining inwall; Furnace roof is smooth, does not find distortion and crackle.Through measuring and calculating, in the smelting furnace life cycle, can reduce spendings such as energy consumption, heating element heater, stove maintenance more than 1,000,000 yuan.According to furnace lining surface state and loss rate are calculated, can reach more than 8 years service life.
Castable refractory composition performance sees Table 2.
Table 2 adds non-oxidized substance Si
3N
4The corundum fireproof of+β-Sialon waters material feeding measured performance index
Embodiment 3 (45t aluminium melting furnace)
A, selection are used and have been added Si
3N
4Porzite flame-proof water the working lining (also can be described as water material feeding working lining) of material feeding as furnace lining; Si
3N
4Addition be respectively 6% of castable refractory weight;
B, furnace shell surface temperature determine that less than 30 ℃ the furnace wall compound Lining is of a size of refractory ceramic fibre+clay light weight matter insulating fire brick+castable refractory=40mm+180mm+230mm, the more former firebrick lining attenuate of furnace wall thickness of inner lining 65mm;
C, furnace roof adopt the flat-top suspension type integrated poured, water the material feeding upper berth and paste the thick refractory fibre of one deck 40mm, and heater element changes the use Elema into;
D, strict by the unshape refractory construction technology construct, maintenance and baking.
E, come into operation after, show according to the comprehensive result of use of aluminium melting furnace furnace lining is investigated: the monolithic lining heat-insulating property is good; Still smooth, the no dross phenomenon of furnace lining inwall; Furnace roof is smooth, does not find distortion and crackle.
Castable refractory composition performance sees Table 3.
Table 3 adds non-oxidized substance Si
3N
4Porzite flame-proof water material feeding measured performance index
Claims (3)
1, a kind of aluminium melting furnace that improves the service life and the thermal efficiency, it comprises shell body, and covering furnace lining layer on the inner walls outside, and it is characterized in that: the working lining in the furnace lining layer---the working lining that is furnace bottom, furnace wall, furnace roof all adopts the integrated poured construction of castable refractory to construct; Wherein, its furnace roof partly is a flat-tope structure, and the integrated poured structure that adopts anchored brick to hang, and its furnace wall adopts the compound furnace wall structure of straight facade structures.
2, aluminium melting furnace according to claim 1 is characterized in that: operate outside layer that described compound furnace wall structure comprises the intraformational bed that is made of the refractory ceramic fibre material that directly combines with the shell body inwall, be made of castable refractory and the employing lightweight heat-proof between intraformational bed and operate outside layer water the intermediate course that material feeding or light heat-insulating fire resistant brick constitute.
3, aluminium melting furnace according to claim 1 and 2 is characterized in that: described castable refractory is that high alumina castable, mullite water any one in material feeding or the corundum pouring material; And in described castable refractory, be added with carborundum (SiC), silicon nitride (Si
3N
4) or Sialon (β-Sialon) in any one or its combination, its addition is 1～15% of a castable refractory weight.
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| CNA2008102312233A CN101413757A (en) | 2008-12-05 | 2008-12-05 | Aluminum melting furnace capable of improving service life and thermal efficiency |
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| CNA2008102312233A CN101413757A (en) | 2008-12-05 | 2008-12-05 | Aluminum melting furnace capable of improving service life and thermal efficiency |
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| CN102003878A (en) * | 2010-12-17 | 2011-04-06 | 攀枝花钢企米易白马球团有限公司 | Kiln head square tube and manufacturing method thereof |
| CN103206860A (en) * | 2013-04-22 | 2013-07-17 | 五力机电科技（昆山）有限公司 | Side sealing plate of furnace |
| CN104229799A (en) * | 2014-09-15 | 2014-12-24 | 王杰锋 | Carbon disulfide reaction furnace of novel material |
| CN105330313A (en) * | 2015-12-09 | 2016-02-17 | 中钢集团洛阳耐火材料研究院有限公司 | Method for preparing recyclable casting nozzle material for deep processing of aluminum |
| CN105486086A (en) * | 2015-12-29 | 2016-04-13 | 茂名重力石化机械制造有限公司 | Heating furnace with module liner |
| CN105861771A (en) * | 2016-04-27 | 2016-08-17 | 武汉钢铁股份有限公司 | Three-fork stove lining structure of ironmaking hot-blast stove |
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| CN102003878B (en) * | 2010-12-17 | 2012-09-05 | 攀枝花钢企米易白马球团有限公司 | Kiln head square tube and manufacturing method thereof |
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| CN104229799A (en) * | 2014-09-15 | 2014-12-24 | 王杰锋 | Carbon disulfide reaction furnace of novel material |
| CN105330313A (en) * | 2015-12-09 | 2016-02-17 | 中钢集团洛阳耐火材料研究院有限公司 | Method for preparing recyclable casting nozzle material for deep processing of aluminum |
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| CN105861771A (en) * | 2016-04-27 | 2016-08-17 | 武汉钢铁股份有限公司 | Three-fork stove lining structure of ironmaking hot-blast stove |
| CN107244937A (en) * | 2017-07-05 | 2017-10-13 | 天长市兴宇铸造有限公司 | A kind of forming method of precision castings smelting furnace gainster and furnace lining |
| CN109722549A (en) * | 2019-01-25 | 2019-05-07 | 北京科技大学 | A method of extending regeneration brass line frequency furnace service life |
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