Converter.

 The converter uses molten iron and scrap steel as raw materials, and removes carbon by slagging, oxygen blowing, etc., to obtain molten steel that meets the requirements. It blows nitrogen, carbon dioxide, argon or oxygen into the furnace through the gas supply bricks, strengthens the molten pool agitation, and improves the smelting reaction, thus shortening the steelmaking time, improving the quality of the molten steel and reducing the steelmaking cost.

Refractory materials about converter  .

   LITE recommends that the furnace cap use high-oxidation and high-strength magnesia carbon bricks.
The trunnion area of the converter is severely eroded by the slag, and the airflow is washed and oxidized. The high-strength and high-corrosion-resistant magnesia carbon brick with carbon content of 16%-18% is selected.

The slag line is mainly eroded by slag, so high-quality and high-resistance magnesia carbon bricks are selected.

In addition to the erosion of steel and slag, the loading side is also subjected to impact and erosion when loading molten iron and scrap steel materials. High-strength magnesia carbon bricks with high resistance to erosion and thermal shock are used.

The measures for repairing and repairing the converter are as follows: (1) For the front and back large faces, the hot self-flowing repairing materials are regularly repaired. Spray the trunnion and other parts. (2) Slag splashing protection furnace. One slag splash per furnace

How will we build it

Design plan and construction drawings

Design scheme: our company has a design company with first-class qualification, and the designer has 30 years of experience in kiln design. After the drawing is completed, three experts (civil engineer, construction engineer and operating engineer) will carry out the final review of the drawing to ensure that there will be no mistakes in the construction of the kiln.
Construction drawing: The dimensions of each place are marked on the construction drawing, and the name, size and quantity of the refractory used are marked. Any experienced construction worker can understand the drawings and follow the construction without any mistakes.

Evaluation and preparation of refractory materials

Rotary kiln is very common in the refractory industry. Common uses include calcined clay, high alumina bauxite, magnesia, high iron sand, magnesia chrome sand, magnesium aluminum spinel, dolomite and activated lime.
Recommended by LITE The calcined belt is lined with corundum mullite bricks, and the outer layer is light mullite brick. The top of the preheater is made of hanging bricks, and the rest is made of refractory castable. The brick type is small and the masonry is simple.

Construction procedure

Lite recommends:
1.The coking chamber of coke oven uses silica brick as its masonry material.

2.The furnace end is made of high alumina brick or sillimanite brick with good thermal shock resistance and wear resistance. Coke oven door lining brick uses cordierite brick.

Construction procedure

3.The bottom of the coke oven carbonization chamber is specially thickened with bricks, and silicon bricks are used.

4.The regenerator adopts clay 12-hole thin-walled lattice brick, low aluminum clay brick in the top two layers of the latticed brick and semi-silica brick in the middle and lower part of the regenerator.

Acceptance and trial

5.Coke oven small flue lining brick mainly used clay brick.

6.The amorphous refractory used in coke oven is mainly fire clay and castable.The fire clay used in coke oven mainly includes medium temperature silicon fire clay, low temperature silicon fire clay and clay fire clay.

Acceptance and trial

1.. Whether the expansion joint is filled with insulation material, and whether the closed hole should be closed tightly;

2.. Whether the sand sealing groove is added to the sand according to the regulations;

3. Whether the mechanical kiln door and the damper lift are flexible, and whether the closing is tight and airtight.

Completed Project

Daily production of 600 tons of activated lime rotary kiln

This series of kilns is an ideal sintering equipment of active lime in China, with high output, high activity, suitable for steelmaking. It is capable of burning oil, burning gas and burning coal. The daily output is 80 tons -600 tons, and the technology is mature and reliable. Maximum service temperature 1050-1100 degrees Celsius

120 cubic meters electric porcelain shuttle kiln

200 cubic meters hot blast stove

Annual production of 20 thousand tons of high alumina brick production line

200 cubic meters hot blast stove

Kiln specification