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LMM YOTAI PRODUCT

UKRAINIAN CUSTOMERS
UKRAINIAN CUSTOMERS
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The MgO-C bricks which used in EAF has a good performance in 75 furnaces, we are so satificated with the using performance of the bricks from LMM YOTAI
	 EGYPT A CUSTOMERS
EGYPT A CUSTOMERS
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We improved the bricks formula and specification accoridng to our experience, the final using performance doubled compared with their previous specification.
	 EGYPT B CUSTOMERS
EGYPT B CUSTOMERS
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In the ladle we have been using high alumina bricks with a performance of 50 heats. After the improved design of LMM YOTAI engineers, we use magnesia carbon bricks instead of high alumina bricks, and the performance reaches 60 furnaces and is still running.
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Magnesia dolomite For eaf

Magnesia-dolomite materials for EAF hearth

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Wet type of stamping material, which magnesia is mixed with bittern solution and molded by rammer, is generally used for lining material for hearth of electric arc furnace. However, in case of severe operation conditions on hearth of DC furnace or any, dry type of magnesia-dolomite stamping material which emphasizes sinterability is mainly chosen. YOTAI supplies kinds of materials introduced below.

Wet Type Stamping Material

  • Superior in slag corrosion  resistance.
  • Grades are divided by magnesia raw material.
  • Mix after adding bittern solution or Magnesium  Chloride powder with water
  • Constructed by rammer or vibrating stamping machine.
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Dry Type Stamping Material

  • Superior to sinterability. Dense and high intensity construction can be offered.
  • Grades are divided by amount of dolomite material.
  • Constructed by vibration fabrication in dry condition.
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Magnesia-dolomite materials for EAF repairing

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These materials are applied for hot gunning for electronic furnace repair, and used of basic gunning material in general. Yotai consider for various kind of materials and develop the materials to get the satisfaction by user, and the introduction is mentioned as below.

 Features:
  • We have general type using virgin materials, and cost cut type using recycled materials.

  • Our general type has Magnesia G-E series for corrosion resistance, Magnesia dolomite G-MD/HD series for Sinterability to wall of furnace and Magnesia spinel type of G-E1SP/BSP8 for suitable to operation in low C/S slag line.

  • Our cost down type has Magnesia Chrome G-R2Y, that is made by recycled material. The recycled material after using at the furnace is provided by steel manufacturer, and is done for sizing and grading.
 Gunning repairing material

Chemical composition, grain composition and features

Table 1  Magnesia type

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Table 2 Magnesia dolomite type

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Table 3 Magnesia spinel、Magnesia chrome

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EQUIPMENT

● Automatic controlling system & complete chemical & physical testing system

● 2100 tons automatic hydraulic press

● 2 lines ultra high temperature tunnel kiln tunnel kilns (1850 ℃)

● 10 sets presses, including 1000t, 800t, 630t and 400t friction press, advanced crushing, blending

SERVICE

Comprehensive solution of Refractory for steelmaking

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