Henan refractory brick manufacturer Calcium aluminate refining slag desulfurizing agent for steel plant

The pre-melted refining slag is made of limestone (containing CaO), magnesite (containing MgO), dolomite (containing CaO·MgO), anderite (containing BaO) and fluorite (containing CaF2) after being sintered and melted in a cupola Made. This slag has a very low melting point and can melt at the fastest speed, shortening the residence time of molten steel in the refining ladle, and strengthening the smelting process. At the same time, the fluidity of this refining agent is very good, the kinetic conditions of the desulfurization reaction are optimized, and deep desulfurization can be realized.

Calcium aluminate, desulfurizing agent is a composite deoxidizing and desulfurizing material. calcium aluminate desulfurizing agent is an indispensable additive in the steelmaking and refining process of iron and steel enterprises. The calcium aluminate desulfurizing agent has uniform chemical composition, low melting point, and fast melting speed, which can shorten the smelting time; does not contain fluorine, does not corrode the lining of the furnace and ladle; the structure is dense, does not absorb water, and is convenient for storage and transportation; due to the stable phase, the slag is formed quickly, which can reduce the Iron and steel plant dust pollution, comprehensive and stable refining process; does not contain impurities such as hydrogen, nitrogen, and carbon, which is conducive to improving steel quality. On the basis of many similar products, combined with domestic and foreign production technology and research and development, the calcium aluminate desulfurizing agent revision in the past relied on high-alkali materials in the refining process, the slag just mixed out, the traditional process of desulfurization outside the furnace, thereby improving the inherent quality of steel products and Use performance.

Refined slag performance
1. It has high-efficiency deoxidation and desulfurization functions, which can reduce the sulfide and oxides in molten steel to the minimum level. It has strong desulfurization and deoxidation capabilities, does not produce sulfidation, and stabilizes the structure of steel products, thereby improving the quality of steel products.
2. It has trinity functions: desulfurization, deoxygenation and submerged arc.
3. It has extremely strong heat preservation function, which can shorten the refining time and improve the efficiency after submerged arc.
4. Direct use, no residual impurities, reduce labor intensity and improve efficiency.
5. Reduce power consumption during refining

Technical characteristics of calcium aluminate desulfurizing agent
1. The melting temperature is obviously lower than that of mechanical mixed slag, and it has the characteristics of low melting point, high melting speed and good foaming performance.
2. The liquid slag can be quickly formed by absorbing very little energy. It has good spreadability and covers the surface of the molten steel to isolate the molten steel from the air, reducing the absorption of H2-O2-N2 by molten steel.
3. It is allowed to use lime to accurately adjust the slag according to the site conditions of each plant to form alkaline highly liquid lime saturated slag.

4. The desulfurization effect is better than that of mechanical mixed slag. The desulfurization rate is greater than that of mechanical mixed slag. At the same time, the final sulfur in steel is also lower than that of mechanical mixed slag, which achieves the purpose of deep desulfurization.

5. Avoid using fluorite (it is harmful to the environment and refractory materials)

How to use calcium aluminate desulfurizing agent
Instructions:
The amount of addition can be determined according to the on-site process conditions. Sanshi Metallurgical recommends 5-12kg/ton, or it can be added in two parts. The tapping is added and the refining furnace is added. By stirring argon at the bottom of the ladle, the steel gas and impurities are fully floated up, and the temperature and chemical composition of the molten steel are uniform, improving the purity of the molten steel and obviously improving the quality of the steel.

Henan refractory brick manufacturer Calcium aluminate refining slag desulfurizing agent for steel plant

Could make according to customers' needs.

Comparison of premelted calcium aluminate desulfurizing agent and sintering calcium aluminate desulfurizing agent

The composition of sintered calcium aluminate desulfurizing agent is more uniform and stable, and the melting speed is faster, but the cost is relatively increased, and due to the small density of the slag and the large number of pores, it is easy to cause suction in the refining process.

Pre-melting calcium aluminate desulfurizing agent refers to the calcium aluminate desulfurizing agent used to make steel after melting raw materials in a special ratio, using high temperature to melt the raw materials into a liquid state at a temperature higher than the melting point of the slag system, and then cooling and crushing.

Premelted calcium aluminate desulfurizing agent has high purity, uniform chemical composition, stable phase, low melting point, and fast slag forming speed, which can greatly shorten the refining time and can be directly used in the slag washing process of the converter ladle tapping process to improve the cleanliness of molten steel . And it does not contain fluorine or a small amount of fluorine, which reduces lining erosion and effectively reduces the pollution of fluorine to the environment. Due to the compact structure of the premelted calcium aluminate desulfurizing agent, it does not absorb water, which is convenient for storage, transportation and storage, and is not powdered or volatile. It can significantly reduce dust pollution in steel plants, but the production cost is higher.

Henan refractory brick manufacturer Calcium aluminate refining slag desulfurizing agent for steel plant

Packing for calcium aluminate refining slag

1.Our packaging is as per customer’s request or packaged in ton bags
2.Normal goods delivered by sea transport
3.Sample shipping by express
4.We will shipping and delivery goods timely, quanlity and quantity guaranteed, and also in accordance with the contract and customer's requirment completely.

Shipping for calcium aluminate refining slag

1.FEDEX/DHL/UPS/TNT for samples.

2.By Sea for batch goods.

3.Customers specifying freight forwarders or negotiable shipping methods!

4.Delivery for Premelted calcium aluminate desulfurizer:

(1)Samples:3 days for common shape samples;15 days for special shape samples.

(2)Batch goods:Within 7-10days for in stock bricks from ordering shipping space to deliver goods and within20-30 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

MOQ: Usually 1 container, MOQ 1Tons, Customers can order certain PCS for special brick.

Henan Hongtai Kiln Refractory Co., Ltd. is established in 2012 and located in Xinmi city, 40 kilometers southwest of Zhengzhou city. Rich resources of refractory materials, adequate and qualified fuel in this area, provide unique conditions for refractory production.

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 highigh alu strength pouring material, impermeable material, self-flowing material, plastic material, and various types of refractory 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 world, as far as Vietnam, India, South Korea, Pakistan, kazakhstan, Malaysia and other southeast Asian countries and regions.

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

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, Germany, Italy, Mongolia, Russia, Argentina, colombia, Eygpt, South Africa and etc.

We has over 20 years experience on producing the calcium aluminate refining slag.

Payment Guarantee: If couldn't trust us at first order, could use trade Assurance.

Jerry Li

Cell&WhatsApp: 0086-13373957739

Email: jerry(at)ht-refractory.com