Raw Materials for Refractory:Ceramic Fiber for Boiler Insulation

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Specifications

ceramic fiber
High density thermal insulation
27-year-old manufacturer
ISO9001,ISO14001,TUV

Product Description

Ceramic fiber for boiler insulation

Introduction

which can be widely used for industry kilns, and has good saving power effect. According to content, we develope four diferent kinds of pruducts, they are 1000 °C common aluminum silicate, 1200 °C high purity, 1200 °C high alumia and 1300 °C Zirconia bearing alumina silicate, and it also can be made according to your requirements.

Advantages of ceramic fiber

1. Profession manufacture
2. Low price and high quality
3. prompt reply-within 24hours
4. prompt delivery-within 15 days

Application of ceramic fiber

1. Metallurgy Industry: heating furnaces,heat treatment furnaces and ladle insulated cover
2. Mechanism industry: thermal insulation material for electric power boilers, gas turbine engine and nuclear power plant
3. Petrochemical industry: the lining of high-temperature reaction equipment and heating equipment in chemical fields,like converting furnaces, constant/reduced pressure furnaces, cracking furnaces, flue lining.
4. Electroceramics: roller kilns,tunnel kilns ,shuttle kilns and other kinds of furnaces

Physical and Chemical Index of ceramic fiber

Type List Item		Common	Standard	High-purity	High- aluminium	Zirconic
Classification Temperature(°C)		1100	1260	1260	1360	1430
Working Temperature(°C)		1000	1050	1100	1200	1350
Color		White	White	White	White	White
Volume Density(kg/m³)		96,128	96,128	96,128	128,160	128,160
Permanent Linear Contrative(%) (insulation 24 hours volume density 128kg/m³)		-4 (1000°C)	-3 (1000°C)	-3 (1100°C)	-3 (1250°C)	-3 (1350°C)
Each Heat Surface Temperature Of The Thermal Conductivity(W/M.K) (density 128kg/m³)		0.09(400°C) 0.176(800°C)	0.09(400°C) 0.176(800°C)	0.09(400°C) 0.176(800°C) 0.22(1000°C)	0.132(600°C) 0.22(1000°C)	0.76(600°C) 0.22(1000°C)
Tensile Strength (Mpa) (density 128kg/m³)		0.08—0.12	0.08—0.12	0.08—0.12	0.08—0.12	0.08—0.12
Chemical Composition(%)	AI2O3	44	46	47-49	52-55	39-40
	AI2O3+SIO2	96	97	99	99	-
	AI2O3+SIO2+ZrO2	-	-	-	-	99
	ZrO2	-	-	-	-	15-17
	Fe2O3	<1.2	<1.0	0.2	0.2	0.2
	Na2O+K2O	<0.5	< 0.5	0.2	0.2	0.2
Product Size(mm)		720061010-50;

Ceramic Fiber For Boiler Insulation

Q: What are the fire endurance requirements of class A fire resistant door ?: Hardwares are professional fire resistant lock, fireproof?door closer, fire hinge, handle, latch and sequencer, and they can also be configured according to user needs. Fire resistant time of class A and B fire resitant door is 12h and 09h respectively. It can also be customized according to customer needs into a variety of non-standard specifications. Steel fire door is developed in accordance with the national standard GB12955-2008, and in line with ISO3008, BS476 standards. Requirement: fire endurance should meet the A,B and C fireproof requirements respectively. You can also choose to install hold-open door device to leep the door leaf usually in open. Doorframe and door leaf is made up of imported or domestic quality electrolytic steel plate, electro galvanized steel plate or stainless?steel plate, filled with quality expanded perlite fireproof?panel which can withstand high temperature above 1200 ℃. The surface is processd with electrostatic spraying plastics, and auxiliaries are stainless steel fire resistant lock (or pipe shaft lock ) , galvanization for steel (or stainless?steel) fire hinge, domestic(or imported) door?closer.

Q: What is the fire resistance thickness of the thin fire-retardant coatings?: There is no detailed requirement on the thickness of the thin steelwork fireproof coatings and the thickness there refers to a certain thickness which must(at least) have fire resistance for a certain time. The thickness of fireproof coatings in engineering generally depends on the manufacturer's test reports. Our thin steelwork fireproof coatings: the fire resistance is 2.5 hours, the thickness is 4.9 mm, the fire resistance is 2.0 hours, the thickness is 3.5 mm, the fire resistance is 1.5 hours, the thickness is 1.75 mm, the fire resistance is 1.0 hours, the thickness is 1.17 mm.

Q: How long can gypsum board endure fire?: General gypsum plaster board with a thickness of less than 12mm has a fire endurance which is less than half an hour. It is clearly stipulated in Clause 2.0.4 of "Specification of Fire-resistance of Decoration?Design in the Interior of Buildings" that "gypsum board, mineral?wool?board and acoustic board whose combustion performance reach at B1 grade installed on steel joists can be used as A-grade incombustible materials. Although the gypsum board is non-combustible material, we need to examine materials' stability in the face of fire and their fire retardant limits besides exmine their fire prevention standards. Fire retardant limit refers to the ability and time that materials can resist fire when encounting fire and taking palce changes.

Q: What is the requirement of refractory concrete for raw materials? What is the main principle of commercial mixing station?: Refractory concrete generally divided into three categories: lightweight concrete (used in insulation); refractory concrete (for refractory temperature requirements are not very high position, and can withstand a certain air scour); heavy refractory concrete (flow with higher requirements for refractory temperature parts, and can withstand a certain intensity). Mainly depends on the design temperature and the use of parts.

Q: What are the qualifications of refractory industry?: 1 business license 2 tax registration certificate 3 organizing institution bar code 4 production permit

Q: How much is the duration of fire resistance of the porous brick shale?: It depends on its formula since the highest temperature varies from formula. For example, the temperature of common bricks is 900℃, if the lime in it accounts for most part, then the temperature could reach 1050℃; if coal ash accounts for over 40%--50%, then the temperature could amount 1050℃--1150℃, I hope my answer will help you a lot.

Q: How long is the duration of fire resistance that fireproof door of level B can endure?: According to the duration of fire resistance, fireproof doors can be divided into three levels, namely level A,B,C. And accordingly, the duration of fire resistance of them should not lower than 1.20h, 0.90h and 0.60h. Fireproof door, a door that can meet the requirements of fire resistance stability, fireproof door integrity and thermal insulation at a certain time, is a fireproof separator which is located in fireproof partition, emergency staircase and vertical silo. Apart from functioning as a common door, a fireproof can also prevent the spread of fire and smoke in a certain period to make sure that people are safely evacuated.

Q: How to deiron refractory?: Our company uses magnetic separation method.

Q: Introduction to refractory material: Refractory material refers to inorganic non-metallic materials with refractoriness of no less than 1580℃. Refractoriness refers to the centigrade temperature of refractory cone sample in the case of no load when resisting high temperature without softening. But the refractoriness alone cannot descript the refractory material, thus 1580℃ is not absolute. Now refractory material is defined as material used in high temperature allowed by its chemical properties. Refractory material is widely used in metallurgy, chemical industry, petroleum, machinery manufacturing, silicate and power industrial area, of which the application in metallurgy accounts for the largest part of 50% ~ 60% of total output.

Q: What kinds of refractory materials that uses a-Al2o3 powder? What are the purpose of it?: 04La-Al2O3 powder is a alumina powder whose raw material is industrial aluminum oxide which has been calcined at high temperature. It is a good polishes for ceramics and jade, meanwhile, it is also an important raw material for high-end refractory materials. The technical indicators parameters A1023 mark A1535 chemical composition AL2O3≥ 99.92 3%, ≥ 3.10FE203≤ 0.799 Refractory calcined alumina powder (a-Al2O3) 1.2 true density (g & # 47, by fully ground powder made of different fineness .O.10 0.07 0.04NA2O≤ 0.93a-Al2O3 (%) ≥ 95 95 primary crystallization average grain (um) 2 ~ 3 3 ~ 5 average particle size (um) 40 ~ 602.6SIO2≤ 0.1 0.15B2O3≤ - 0, glass, engineering ceramics typical use electronic ceramic insulating ceramic refractory ceramic wear 3

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