ISO9001 Certified Silica Brick for Acid Resistance in High Temperature Applications
Price:
$260.00 - $500.00/tons
MOQ:
Negotiable
Delivery Time:
Negotiable
Brand:
HongTai
Product Description
Product Description
Acid resistant insulating silica brick Price
Insulating silica bricks refer to heat-insulating refractory products made of silica as the main raw material and with an SiO2 content of not less than 91%. In addition to the thermal insulation properties of Insulating silica bricks, it maintains the characteristics of silicon bricks to a large extent. The starting temperature of load softening is high, and the volume expands slightly during the heating process, which enhances the integrity of the kiln. The manufacture of siliceous Insulating silica bricks uses finely pulverized silica as the raw material, adding part of the waste silica bricks or waste siliceous Insulating silica bricks powder, mineralizers and burnout additives. Add water to the mixer according to a certain proportion to mix into a mud, which is formed by mechanical or manual molding. After the brick is dried, the residual moisture is less than 0.5% before it can be loaded into the kiln. In order to prevent the violent volume expansion due to the polycrystalline transformation of SiO2, causing cracks in the product, a slower temperature rise and fall speed are required during firing. Insulating silica bricks generally use crystalline quartzite or silica sand as raw materials, and the mineral composition is: phosphorite 78% to 86%, cristobalite 13% to 15%, and quartz 4% to 7%. Add combustible materials to the ingredients, such as coke, sawdust, anthracite, carbonized rice husk, or use gas foaming to form a porous structure. Insulating silica brick Price are heat-insulating silicon refractory products with a SiO2 content of more than 90% and a bulk density of less than 1.2. The refractoriness and softening temperature under load are not much different from ordinary silica bricks with the same composition. However, due to the many pores, the compressive strength, slag resistance, and corrosion resistance are not as good as ordinary silica bricks, but the thermal shock resistance has been improved. It is similar to the production process of ordinary silica bricks. Some mineralizers (CaO, Fe2O3) are added to the ingredients to promote the conversion of quartz, and pulp waste liquid is used as a binder to make the bricks have a certain strength. When using coke or anthracite as combustible additives, because the ash will be brought into Fe2O3 and Al2O3, there is no need to add iron scales in the ingredients. When the siliceous Insulating silica bricks are fired, a strong oxidizing flame should be maintained before 1200°C to make the additions burn out completely. Insulating silica bricks have the characteristics of low thermal conductivity, high load softening temperature, small residual expansion, and excellent reburning line change performance. They are suitable for industrial furnaces such as coke ovens, hot blast furnaces, glass furnaces and carbon furnaces. It is mainly used for the heat insulation layer and working layer of thermal equipment, and can be used for the heat insulation layer of various high temperature kiln equipment under high temperature conditions (≤1500℃) without contact with molten slag. This product is suitable for the heat insulation material of the silica brick lining of the high temperature hot blast stove of the large blast furnace and the heat insulation of the silica brick masonry of the glass furnace.
General Insulating silica bricks can be divided into two levels: the first grade can be used in the top of the steel rolling heating furnace and the roof of the silicate industrial kiln, and can be directly in contact with the flame; the second grade is used in the general industrial kiln Insulation. Applicable to: industrial furnaces such as coke ovens, hot blast furnaces, glass melting furnaces and carbon calciners. Generally, the bulk density of silicon heat insulation refractory bricks is 0.9-1.1g/cm3, the compressive strength is 2.0-5.9MPa, and the thermal conductivity is 0.35-0.42W/(m·K). It has excellent fire resistance, its softening temperature under load is close to 1620℃ for dense silica bricks, with only a small residual expansion, and its thermal stability is better than dense silica bricks. Therefore, siliceous heat-insulating refractory bricks can be used for a long time under high temperature conditions (1500-1550°C) without contact with molten slag, but they are especially suitable for high-temperature hot-blast furnaces of large blast furnaces. Thermal insulation of silica brick gas.
Specification
Acid resistant insulating silica brick Price
Items | GGR-1.0 | GGR-1.10 | GGR-1.15 | GGR-1.20 | ||
SiO2 % ≥ | 91 | 91 | 91 | 91 | ||
Bulk density g/cm3 | 1.0 | 1.10 | 1.15 | 1.20 | ||
Cold crushing Strength Mpa | 2 | 3 | 5 | 5 | ||
Refractoriness Under Load 0.1Mpa ≥ ℃ | 1400 | 1420 | 1500 | 1520 | ||
Liner change on re-heating rate | 1550℃*2h | -- | -- | 0.5 | 0.5 | |
1450℃*2h | 0.5 | 0.5 | -- | -- | ||
Thermal Conductivity 350 ℃ W/(m.k) | 0.55 | 0.60 | 0.65 | 0.70 | ||
Packing & Delivery
Acid resistant insulating silica brick Price
Packing of Acid resistant insulating silica brick
Light weight Acid resistant insulating silica bricks are fumigated wooden pallet, using paper or non-woven fabrics between layers separated,plastic shrink film protected outside.finally using straps. Or as your requirements.
Light weight Acid resistant insulating silica bricks are fumigated wooden pallet, using paper or non-woven fabrics between layers separated,plastic shrink film protected outside.finally using straps. Or as your requirements.
Shipping of Acid resistant insulating silica brick
1.Our packaging is as per customer’s request
2.Normal goods delivered by sea transport
3.Sample shipping by express
4.We will shipping and delivery goods timely, quality and quantity guaranteed, and also in accordance with the contract and customer's requirement completely.
1.Our packaging is as per customer’s request
2.Normal goods delivered by sea transport
3.Sample shipping by express
4.We will shipping and delivery goods timely, quality and quantity guaranteed, and also in accordance with the contract and customer's requirement completely.
Insulating silica brick Delivery:
15-30 days working day for large quantity. The shipment we will arrange as soon as possible. Of course, if it is a custom
products, the shipping time will delay.
Insulating silica brick Sample:
Usually by EMS, DHL, UPS, TNT, FedEx. Anyway you like. Bulk order: Usually by sea.
Payment:
It can be through T/T, L/C at sight. The specific terms determined according to the quantity of the goods, etc.
Your inquiry related to our insulating silica brick product & price will be replied within 24 hours.
Export:
Our insulation silica brick products have been exported to many countries: Australia, Chile, USA, Russia, UK, Indonesia, etc., good quality have be
approved by our clients.
Company Profile
Acid resistant insulating silica brick Price
Henan hongtai kiln refractory co., LTD. Is well aware that there are thousands of demands from customers, which can be summarized in four aspects: reliable quality, timely delivery, reasonable price and considerate service.The company will continue to adhere to the corporate spirit of "contributing to society and serving customers" and the business philosophy of "mutual benefit, win-win, integrity, efficiency, preciseness and responsibility".Our company is willing to develop a wide range of technical exchanges with colleges and universities and colleagues from all walks of life at home and abroad in a flexible and diversified way.
Henan HongTai kiln refractory co., LTD. : "quality first, reputation first, customer first: it is our aim."Scientific management, strong technical force, perfect testing means, advanced technological equipment and stable product quality are the guarantee of quality service. Henan HongTai kiln refractories co., LTD sincerely hopes to cooperate with you hand in hand and in good faith.
Our Products
Why Choose Us
Acid resistant insulating silica brick Price
1.Strong professional:Our company has thirty years producing experience in refractory products. Our manager will supervise on a various refractories production materials, process control, quality supervision and package delivery, and ensure the products are 100% qualified.
2.Annual supply:
Our company has passed ISO 9001 quality management system certification and SGS certification. And the annual supply of shaped and unshaped refractory product is 28, 800-35, 000 tons.
3.Export experiences:
Now we have gained a global sales network reaching Russia, South Korea, Vietnam, Pakistan, Bulgaria, France, India, Egypt, Congo, Angola, South Africa etc.
4. Production equipment:
Production and testing equipment are new, complete and automated or semi- automated. Such modern facilities and equipment have provided the fine technical guarantee for the production and testing.
5. Testing equipment:
Our company's testing equipment as follows:
High Temperature RUL. Tester
Bulk Density Tester
The Pressure Tester
Refractoriness Tester
FAQ
Acid resistant insulating silica brick Price
1. How can you control your quality?For each production processing, we have complete QC system for the chemical composition and Physical properties. After production, all the goods will be tested, and The quality certificate will be shipped along with goods.
2. What's your delivery time?
It usually needs about 15 days- 30 days after receiving the deposit.
3.Do you have any experiences of export?
Yes,and Now we have gained a global sales network reaching Taiwan, Russia, Korea, Vietnam, Pakistan, Bulgaria, French, India, Congo, Angola, South Africa, and so on.
4. Do you provide free samples?
Yes, we can provide a free sample for testing, If we have sample in stock, The quantity based on the material type, The buyer should bear all the shipping costs.
5. Can we visit your Company?
Yes, certainly. You are very welcome to China and we will be honored to have a customer and friend.
Contact
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Henan Hongtai Kiln Refractory Co.,Ltd.
Location
Group 4, Chuling Village, Chaohua Town, Zhengzhou, Henan, China
Contact Person
Zhang