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90% Al2O3 Content Chrome Corundum Brick for Glass Furnace Lining and Pool Demand

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Henan Hongtai Kiln Refractory Co.,Ltd.

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90% Al2O3 Content Chrome Corundum Brick for Glass Furnace Lining and Pool Demand

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Model Number :	A90, AG92, A94, A96, A98, A99, A99.5
Brand Name :	Hongtai
Supply Ability :	3000 Ton/Tons per Month
Price :	$0.50 - $5.00/pieces

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Product Details
Company Profile

90% Al2O3 Content Chrome Corundum Brick for Glass Furnace Lining and Pool Demand

Product Description

Chrome corundum brick for lining and pool of the glass furnace

The main mineral composition of chrome corundum brick for lining and pool of the glass furnace is prun-Al2o3-cr2o3 solid solution.The secondary mineral composition is a small amount of composite spinel (or non-composite spinel), and the content of chromium oxide is 1% ~ 30% of firebrick. And in near day, high pure chrome corundum brick also make to fulfill the needs of special industries. High chromium bricks (Cr2O3≥90%) are mainly used in key parts of kilns such as coal chemical industry, chemical industry kilns, alkali-free glass fiber kilns, garbage incinerators, etc.There are two types of fused cast chrome corundum brick and sintered chrome corundum brick.

Chrome corundum brick in general refers to sintered chrome corundum brick.
α-Al2O3 was taken as the raw material, and a moderate amount of chromic oxide powder and fine powder of chrome corundum clinker were added.The content of chromic oxide in sintered chrome brick is generally lower than that of fused cast chrome corundum brick.

Moreover, the gray-pouring method can be used to prepare the gray-Al2o3 powder and chromium-oxide powder, and the grain-Al2o3 powder can be mixed uniformly, and the grout can be made by adding degumming agent and organic binder, and some chrome-corundum clinker can be added at the same time.It can be used as lining of glass kiln, screwing glass liquid flow hole cover plate brick, as backing lining of iron water pretreatment device, waste incinerator, coal water slurry pressurized gasifier, etc.

At present, the application of chrome corundum brick has more extensive application, a kind of chrome corundum brick is made from metal chrome slag as the main raw material, this product is widely used in zinc smelting electric furnace, volatile kiln, chrome corundum brick has excellent thermal vibration stability and high temperature creep performance, simultaneously conforms to the requirements of national circulation economy.

Specification

Chrome corundum brick for lining and pool of the glass furnace

The raw material used in the chromium corundum series products is a solid solution synthesized by high-temperature melting of alumina and chromium oxide in a certain proportion. The production process of special refractory materials is used to make refractory bricks, which can improve and enhance the internal quality of the product and the high temperature performance of the product. It has the characteristics of high refractoriness, high strength, good thermal shock stability, and strong corrosion resistance. Erosion, abrasion resistance, corrosion resistance, and structural spalling resistance have been used in metallurgy, glass, carbon black, and petrochemical industries. chromium corundum brick performance analysis 1. The refractory performance of the product can be seen from the Al2O3-Cr2O3 binary phase diagram. Al2O3 and Cr2O3 can form a continuous solid solution without eutectic. Therefore, adding Cr2O3 to the high-purity corundum material, regardless of the amount added, will not only not reduce the fire resistance of the material, but will increase the fire resistance of the material. The refractoriness (>1790) and load softening temperature (>1700) of chrome corundum bricks are better than high-purity corundum products. 2. The strength of the product The normal temperature compressive strength of high-purity corundum bricks is generally 70-100MPa, and the normal temperature compressive strength of high-performance chromium corundum bricks is generally >150MPa, and its strength is significantly higher than that of corundum bricks. This is because during the firing process of the product, the Al2O3-Cr2O3 solid solution is formed between the particles and the particles, between the particles and the fine powder, and between the fine powder and the fine powder. The solid solution connects the particles and the fine powder like a bridge. Together, the strength of the material is greatly improved. 3. Thermal shock stability According to data, when Cr2O3 is added to corundum, when the content of Cr2O3 is 10%~66%, the thermal shock stability of the material decreases with the increase of Cr2O3 content, that is, chrome corundum bricks with low Cr2O3 content. Its thermal shock stability is better than that of chrome corundum bricks with high Cr2O3 content. 4. Slag erosion resistance The solubility of Cr2O3 in coal gasifier slag (SiO2-CaO series) and various glass melts is much smaller than that of other oxide materials. Therefore, Cr2O3 or refractory materials containing Cr2O3 have good corrosion resistance to steel slag, non-ferrous smelting slag, coal gasification slag, oil gasification slag and various glass melts. The liquid phase viscosity of Cr2O3 melt or the reaction of Cr2O3 and slag is higher than that of other low melts, which prevents the slag from penetrating into the brick body along the capillary pores, and avoids the formation of a metamorphic layer and structural peeling.

Item	HT-GG90	HT-GG85	HT-GG60	HT-GG30	HT-GG12	HT-GG03
Cr2O3 %	≥93	≥86	≥60	≥30	≥12	≥3
Al2O3 %	—	—	≤38	≤68	≤80	≤90
Fe2O3 %	—	—	≤0.2	≤0.2	≤0.5	≤0.5
Apparent porosity %	≤17	≤17	≤14	≤16	≤18	≤16
Bulk Density g/cm3	≥4.3	≥4.2	≥3.63	≥3.53	≥3.3	≥3.25
Cold compressive strength, Mpa	≥100	≥100	≥130	≥130	≥120	≥120
Refractoriness under load ℃ (0.2MPa,0.6%)	≥1680	≥1670	≥1700	≥1700	≥1700	≥1700
Linear change rate % (1600℃×3h)	±0.2	±0.2	±0.2	±0.2	±0.2	±0.2

Chrome corundum brick for lining and pool of the glass furnace

Straight size:230×114×65 230×114×75 230×57×65
Split size: 230×114×32 230×114×40 230×114×25 230×114×50
Arch/Wedge size: 230×114×65/45 230×114×65/55 230×114×75/45 230×114×75/55 230×114×75/65
Tile size: 230×230×38 230×230×50 230×230×65 230×230×75
Other size: Key brick, Skew brick, Soap, Checker, Neck, Taper
Also produce corundum bricks according to customers' needs

Manufacturing Technique

Chrome corundum brick for lining and pool of the glass furnace

1.The chrome corundum brick Production Process
Crushing→Mixing→Shaping→Drying→Firing→Inspection→Packaging and Shipment

The chrome corundum bricks use α-Al2O3 as raw material, adding appropriate amount of chromium oxide powder and fine chromium corundum clinker powder, after forming, sintering at high temperature. The chromium oxide content of sintered chrome rigid brick is generally lower than that of fused-cast chrome corundum brick. It can also be prepared by the slurry casting method. The α-Al2O3 powder and the chromium oxide powder are uniformly mixed, and the glue and organic binder are added to make a thick slurry. At the same time, part of the chromium corundum clinker is added, and the brick is made by the grouting method. Fire again. It can be used as glass kiln lining, wire drawing glass flow hole cover tile and as back lining for hot metal pretreatment device, garbage incinerator, coal water slurry pressurized gasifier, etc.

2.The chrome corundum brick Quality Assurance
HongTai Refractory is committed to high quality standards for all its products and services. With its thirst on State of the art technology at every level and a wide range of products, HongTai Refractory can provide ideal solutions for the stringent requirement of the customer. Backed by decade of experience in different industries, and close association with customers,HongTai Refractory will always bring new products which will give better life and value to the user.

The quality assurance system consists of the following steps:
1. Inspection and Control of incoming raw materials:According to the chemical content,raw materials are classified into different levels to ensure quality of brick first.
2. Inspection and process control:During the production, each brick weight twice to reduce weight error.
3. Inspection of product Standardization of quality of each product by process control and experimentation.
4. Taking corrective measures whenever deviations are noted.

Chrome corundum brick for lining and pool of the glass furnace

High chromium bricks (Cr2O3≥90%) are mainly used in key parts of kilns such as coal chemical industry, chemical industry kilns, alkali-free glass fiber kilns, garbage incinerators; chrome corundum bricks are mainly used in carbon black furnaces and copper smelting furnaces The inner lining of the glass furnace, the molten pool of the glass furnace, the slideway of the steel rolling heating furnace, and the tapping platform.

The chrome corundum bricks use in the steel industry, the service life of chrome corundum material is more than twice that of corundum material, such as ladle breathable bricks, etc.; used in the non-ferrous smelting industry, the wear resistance and corrosion resistance of chrome corundum bricks are significantly better than others Brick; In the petrochemical industry, due to long-term high temperature (1350~1450), high pressure (3.1~8.53MPa), strong reducing atmosphere (CO+H2+CH4) and high airflow velocity in the gasification furnace of large and medium-sized fertilizer plants, The corrosion and damage to the lining refractories are serious, so the requirements for the lining refractories are higher. High-performance chromium corundum bricks have high density and high strength, and are more resistant to air erosion and wear resistance than corundum bricks. The introduction of Cr2O3 into the corundum bricks changes the internal quality of the products, and significantly improves the resistance to slag erosion and permeability of the bricks. The use of chromium corundum bricks in the gasifier can increase the service life of the gasifier.

Packing & Delivery

Packaging for Chrome Corundum brick
1.Pallet+Paper or Steel angle bead+Paper board +Plastic or Steel belt +Plastic film
(1)Wooden pallet size:Usually0.92*0.92m(standard brick),but 1*1m (special shape brick) at most,
(2)Load weight of each pallet:Usually 1.5-1.7Tons, max 2.0 Tons.
(3)20 Foot Container can be loaded max 25-26Tons, about 13-16Pallets.
2.Can make the package according to customer's requirements.

Shipping for Chrome Corundum brick
1.FEDEX/DHL/UPS/TNT for samples.
2.By Sea for batch goods.
3.Customers specifying freight forwarders or negotiable shipping methods!
4.Delivery Time of Chrome Corundum brick:
(1)Samples:3 days for common shape samples;15 days for special shape samples.
(2)Batch goods:Within 7-10 days for in stock bricks from ordering shipping space to deliver goods and within 20-30 days for NO in stock bricks.
Payment Terms
(1)T/T, Western Union,LC;
(2)Usually 30% deposits,70% balance to be paid before delivery or against copy of BL or negotiations
Others
1. MOQ: Usually 1 container, MOQ 1Tons, Customers can order certain PCS for special brick.

Company Profile

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. Main products are high alumina brick, clay brick, fused zirconium corundum brick,
fireproof ball lightweight insulation brick, wear-resistant pouring material, corundum pouring material, low cement high strength pouring material, impermeable material, self-flowing material, plastic material, and various types of refractory materials.For different industries, the cement industry with anti-flaking high-alumina bricks, alkali resistant bricks, phosphate bricks;Boiler industry USES all kinds of brand wear-resisting brick, corundum brick, mullite brick and other finalizing materials.The company insists on "product quality is the life, enterprise integrity is the foundation", in the fierce market competition, won many users' trust and praise.The products are sold all over the country, as far as Vietnam, India, South Korea, Pakistan, kazakhstan, Malaysia and other southeast Asian countries and regions.

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.

Chrome corundum brick for lining and pool of the glass furnace

1. Strong professional:
Our company has thirty years producing experience in refractory products. Our manager will supervise on a various refractorys production materials, process control, quality supervision and package delivery, and ensure the products are 100% qualified.
2.Annual supply:
Our company has passed ISO9001 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 Taiwan, Russia, South Korea, Vietnam, Pakistan, Bulgaria, French, India, Congo, Angola, South Africa, and so on.
4. Production equipment:
Production and testing equipments are new, complete and automated or semi- automated. Such modern facilities and equipments have provided the fine technical guarantee for the production and testing.
5. Testing equipment:
Our company's testing equipments as follows:
High Temperature RUL Tester Bulk Density Tester The Pressure Tester Refractoriness Tester

Customer Photos

Hongtai Kiln Refractory has professional sales and after-sale service team who provide customers all-around service about product selection, transportation, installation and operation technology training etc. Now we have established cooperation relationship with many science and research units and our products have been sold to Vietnam, Thailand, Malaysia, South Korea, Pakistan, Kazakhstan, India, Japan, Indonesia, Malaysia, Germany, Italy, Mongolia, Russia, Argentina, Colombia, Eygpt, South Africa and etc.
We has 20 years experience on producing the chrome corundum brick for lining and pool of glass furnace.
Payment Guarantee: If couldn't trust us at first order, could use trade Assurance.

Jerry Li

Cell&WhatsApp: 0086-13373957739
Skype: live:.cid.b12dd76d43ac731e
Email: jerry(at)firebricks-supplies.com

90% Al2O3 Content Chrome Corundum Brick for Glass Furnace Lining and Pool Demand

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