CN205133425U - Fine and close chamotte brick is used to blast furnace - Google Patents

Fine and close chamotte brick is used to blast furnace Download PDF

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Publication number
CN205133425U
CN205133425U CN201520779811.6U CN201520779811U CN205133425U CN 205133425 U CN205133425 U CN 205133425U CN 201520779811 U CN201520779811 U CN 201520779811U CN 205133425 U CN205133425 U CN 205133425U
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CN
China
Prior art keywords
basic unit
blast furnace
heat insulating
insulating porous
porous layer
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.)
Expired - Fee Related
Application number
CN201520779811.6U
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Chinese (zh)
Inventor
许建锋
许美根
许杰锋
吴益平
夏建卫
郑韬
许宗琴
钱法君
叶翔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WUXI XINGDA ENERGY SAVING REFRACTORY CO Ltd
Original Assignee
WUXI XINGDA ENERGY SAVING REFRACTORY CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by WUXI XINGDA ENERGY SAVING REFRACTORY CO Ltd filed Critical WUXI XINGDA ENERGY SAVING REFRACTORY CO Ltd
Priority to CN201520779811.6U priority Critical patent/CN205133425U/en
Application granted granted Critical
Publication of CN205133425U publication Critical patent/CN205133425U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

Fine and close chamotte brick is used to blast furnace, including the base member, including the basic unit at center and set up in the compacted zone of basic unit's upper surface, basic unit's lower surface is provided with the micropore heat preservation, and the micropore insulation layer thickness be 13 of basic unit, and compacted zone thickness is 15 of basic unit, and the surperficial equipartition of basic unit has the aperture to be 10mm~15mm's not through -hole, the obstructed downthehole cement thick liquids of having built. The high pressure and high temperature shaping, solid structure, low cost, high temperature resistant, thermal stability is good.

Description

Blast furnace leck brick
Technical field
The utility model relates to fire resisting material field, particularly relates to blast furnace clay brick.
Background technology
Along with the development of modern smelting technology, blast furnace is the major equipment of ironmaking, and clay brick is the inner lining material that blast furnace uses the earliest.The 1950's starts, furnace volume keeps the large-scale development, 812m diameter cupola well is comparatively general, productivity improves rapidly. but shaft refractory brick and the erosion of bosh refractory brick affect blast fumance significantly, and traditional clay brick is because its void content is comparatively up to about 20%, be not suitable for using on existing blast furnace.Therefore develop a kind of novel high-performance leck brick to carry out alternative original clay brick and become the primary goal of present stage, technique center assume responsibility for the research and development task of this product therefrom.Calculate with Current Domestic iron and steel output, consuming clay brick 0.13 kilogram calculating with ton iron then has immeasurable market outlook.
Utility model content
The utility model, for the deficiencies in the prior art, provides a kind of high pressure-temperature shaping, firm in structure, with low cost, high temperature resistant, the blast furnace leck brick that thermal stability is good.
For realizing the utility model object, provide following technical scheme: blast furnace leck brick, it is characterized in that comprising matrix, comprise the basic unit at center and be arranged at the tight zone of basic unit's upper surface, basic unit's lower surface is provided with heat insulating porous layer, and heat insulating porous layer thickness is 1/3 of basic unit, and dense layer thickness is 1/5 of basic unit, substrate surface is evenly equipped with the blind hole that aperture is 10mm ~ 15mm, has built cement slurry in blind hole.
As preferably, described basic unit is formed by yellow sand and water high temperature sintering.
As preferably, tight zone and basic unit's high-temperature high-pressure are connected into type.
As preferably, heat insulating porous layer is that plant ash and clay mixed sintering form.
As preferably, the micropore of heat insulating porous layer is irregular holes.
As preferably, tight zone comprises the andaluzite sintered layer of outer field flint clay sintered layer and internal layer.
The utility model beneficial effect: the physical and chemical index of the utility model clay brick: Al2O3 >=45%Fe2O3≤1.0% volume density >=2.5g/cm3 apparent porosity≤13% cold crushing strength >=65MPa thermal shock resistance (1100 DEG C of water-cooleds) is greater than 30 times.
Every physical and chemical index is all apparently higher than unselected clay product, and this product obviously will be grown for work-ing life on blast furnace, and energy-saving effect is obvious.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Embodiment 1: blast furnace leck brick, comprise matrix 1, comprise the basic unit 1.1 at center and be arranged at the tight zone 1.2 of basic unit 1.1 upper surface, basic unit 1.1 lower surface is provided with heat insulating porous layer 1.3, heat insulating porous layer 1.3 thickness is 1/3 of basic unit 1.1, tight zone 1.2 thickness is 1/5 of basic unit 1.1, and basic unit 1.1 surface is evenly equipped with the blind hole 1.1.1 that aperture is 10mm ~ 15mm, has built cement slurry 2 in blind hole 1.1.1.Described basic unit 1.1 is formed by yellow sand and water high temperature sintering.Tight zone 1.2 and basic unit 1.1 high-temperature high-pressure are connected into type.Heat insulating porous layer 1.3 forms for plant ash and clay mixed sintering.
The micropore of heat insulating porous layer 1.3 is irregular holes.Tight zone 1.2 comprises the andaluzite sintered layer 1.2.2 of outer field flint clay sintered layer 1.2.1 and internal layer.
Make tight zone of the present utility model and adopt salic 45% superfine flint clay, because it has less glassy phase.Next selects one-level andaluzite, and the objectionable constituent reduced further in raw material improve refractoriness under load and the thermal shock resistance of product.
Superfine flint clay has good thermostability and lower apparent porosity, pressing machine separately through 630t height tonnage carries out suppressing (every square centimeter reaches more than 1500kg), thus improve the volume density of product, reduce its apparent porosity, improve compressive strength and the product series of physicochemical index of product.
Firing of product, product forms through the high-temperature firing of more than 1400 DEG C after seasoning again, thus ensure that the refractoriness under load of product is greater than 1500 DEG C, compressive strength is greater than 65Mpa, thermal shock resistance (1100 DEG C of water-cooleds) is greater than 30 times, guarantees that product in use has a series of performances such as resistant to corrosion, high RUL, anti-thermal shock like this.

Claims (4)

1. blast furnace leck brick, it is characterized in that comprising matrix, comprise the basic unit at center and be arranged at the tight zone of basic unit's upper surface, basic unit's lower surface is provided with heat insulating porous layer, heat insulating porous layer thickness is 1/3 of basic unit, dense layer thickness is 1/5 of basic unit, and substrate surface is evenly equipped with the blind hole that aperture is 10mm ~ 15mm, has built cement slurry in blind hole.
2. blast furnace leck brick according to claim 1, is characterized in that tight zone and basic unit's high-temperature high-pressure are connected into type.
3. blast furnace leck brick according to claim 1, is characterized in that the micropore of heat insulating porous layer is irregular holes.
4. blast furnace leck brick according to claim 1, is characterized in that tight zone comprises the andaluzite sintered layer of outer field flint clay sintered layer and internal layer.
CN201520779811.6U 2015-10-10 2015-10-10 Fine and close chamotte brick is used to blast furnace Expired - Fee Related CN205133425U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520779811.6U CN205133425U (en) 2015-10-10 2015-10-10 Fine and close chamotte brick is used to blast furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520779811.6U CN205133425U (en) 2015-10-10 2015-10-10 Fine and close chamotte brick is used to blast furnace

Publications (1)

Publication Number Publication Date
CN205133425U true CN205133425U (en) 2016-04-06

Family

ID=55619237

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520779811.6U Expired - Fee Related CN205133425U (en) 2015-10-10 2015-10-10 Fine and close chamotte brick is used to blast furnace

Country Status (1)

Country Link
CN (1) CN205133425U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105198460A (en) * 2015-10-10 2015-12-30 无锡兴达节能科技股份有限公司 Compact clay brick for blast furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105198460A (en) * 2015-10-10 2015-12-30 无锡兴达节能科技股份有限公司 Compact clay brick for blast furnace

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160406

Termination date: 20211010