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in iron-making industry

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DALMIA SEVEN is not only a new name, but a new promise: to bring tradition and innovation together for the purpose of serving the Indian market in an optimal and unprecedented way.It is a joint venture between Dalmia Refractories, India’s trusted and leading refractory maker and Seven Refractories of Europe, a young European manufacturer, which unites innovative technology with multi-national experience across various refractory industries.

DALMIA SEVEN understands your specific requirements and serves them innovatively with the most advanced technology.

Blast furnace lining engineeringThe high capital investment of blast furnace relines mandates that iron makers pursue the longest possible campaign life.While the hearth remains the most criti-cal zone for repair, the stack can always be re-profiled. Robotic repairs or manual instal-lation by lifting platform are the usual, long experienced techniques used worldwide.

Furnace life extension is optimized by ad-vanced engineering refractory products.DALMIA SEVEN Refractories offers a com-plete range of monolithic and precasted shape products suitable for any blast furnace repair. Engineering support is provided for product selection and turn key installations based on extensive international experience.The blast furnace service life extension, the environmental issues and the costs reduc-tion are aims of an open and mutual vision. Blast Furnace Hearth RepairCarbon blocks in Furnace Hearth gets worn out locally or all around which can lead to Hearth leakage or failure. Hearth repair technology from DALMIA SEVEN is an unique technology which enables furnace op-erators to rebuild eroded Carbon blocks.Thus DALMIA SEVEN is able to fully repair your Blast Furnace starting from Hearth to the top of the furnace with most reliable material & practices and in shortest time schedules.

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IRON STAVES JOINTSRAMMING ABRASION RESISTANT

COPPER STAVES JOINTSHIGH THERMAL CONDUCTIVITY RAMMING MIX

LEVELLING TUYERES BELTSELF-FLOWING LEVELLING CASTABLE

IRON NOTCHTAPHOLE CLAY

TAPHOLE AREASELF-FLOWING AGS CASTABLE

TAPHOLE FACEALUMINA-SiC GUNNING

HOT BLAST COMPONENTSPRE-CASTED SHAPE; SELF-FLOWING CASTABLE

IRON NOTCH

DOME GUNNING MIX CO RESISTANT

UPPER AND MIDDLE STACKGUNNING MIX OR SHOTCRETE ABRASION AND CO RESISTANT

ARMOR PLATECASTABLE LOW-IRON CO RESISTANT

BACK STAVESINJECTION MATERIAL

LOWER STACK AND BELLYGUNNING MIX OR SHOTCRETE ABRASION AND CO RESISTANT

TUYERES BELTHIGH ALUMINA PRECASTED BLOCKS

SUB-HEARTHSELF-FLOWING LEVELLING CASTABLE

HEARTHHIGH ALUMINA OR AGS PRECASTED TILES

BOSHGUNNING, CASTABLE OR SHOTCRETE ABRASION AND CO RESISTANT

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Casthouse performance is determined by runner and trough design.

product engineering and application technology. DALMIA SEVEN’s main focus

is to provide reliable high alumina and silicon carbide/carbon products

for all refractory linings.

Working lining characteristics

Safety lining characteristics

• Designed for long campaign service life

• Low and ultra-low cement castable

• Brown fused alumina and silicon carbide base

• High erosion resistant

• Slag resistance

• Thermal cycling resistant

• Low cracking behaviour

• Pitch free and non toxic emission

• Long service life

• No crack formations

• Oxidation resistant

• Iron and slag corrosion resistant

• High mechanical properties

• Casted on site or supplied in precast blocks

• Designed for zoned lining

• Pitch-free and no toxic emission

Casthouse engineer ing

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DALMIA SEVEN Refractories offers different lining solutions for your casthouse based on layout, installation technique, experience and user preferences.

DS cast Regular. low and ultra-low cement vibrating castables for any application

DS flow Self-flowing low and ultra-low easy to install castables

DS gun Dry dense and regular hydraulic mixes for all general maintenance

DS ram Ramming mix chemically and ceramic bonded mixes for any kind of application

DS plast Shaped plastic chemically and ceramic bonded mixes for special applications

DS shot Low and ultra-low cement spraying castables for dedicated quick lining and repairs

DS grout Hydraulic and chemically bonded self-flowing mixes used for hot and cold injection

DS dry Special dry chemically bonded mixes for dedicated applications

DS cem Special chemically bonded mortar for jointing precasted blocks and bricks lining

DS shape Special ready shaped dried blocks for special use

WORKING LININGVIBRATING AGS CASTABLE OR RAMMING MIX

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BOTTOM SAFETY LININGVIBRATION CASTABLE

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SIDEWALLS SAFETY LININGPRECASTED BLOCKS OR VIBRATING CASTABLE

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BACK BLOCKS FILLINGSELF FLOWING CASTABLE

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PERMANENT LININGCHAMOTTE BRICKS OR CASTABLE

SHELL PROTECTIONINSULATING BOARD OR PAPER

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SHELL PROTECTIONINSULATING BOARD OR PAPER

WORKING LININGVIBRATING AGS CASTABLE OR PRICASTED SHAPES OR RAMMING MIX

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SAFETY LININGVIBRATING CASTABLE

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SAFETY LININGCHAMOTTE BRICKS

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WORKING LININGVIBRATING AGS CASTABLE OR RAMMING MIX

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WORKING LININGVIBRATING AGS REINFORCED CASTABLE

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PERMANENT LININGCHAMOTTE BRICKS OR CASTABLE

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SHELL PROTECTIONINSULATING BOARD OR PAPER

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Cast rate, corrosion resistance and balancing the taphole wear and the renewal of the “mushroom” are all aspects creating synergy between the user’s demand and the producer’s capability.

Special attention is paid to the product design and manufacturing to ensure

stable furnace operation and hearth walls protection.

taphole Clays

Three families of products for different requirements have been designed:

DS tap 100 suitable for little blast furnace.

DS tap 200 is engineered for consistent performance in small and medium sizes blast furnaces.

DS tap 300 a higher content for anti-abrasives increases the taphole performance and makes it more suitable for medium and large blast furnaces.

DALMIA SEVEN Refractories taphole clay is the answer to:

• Daily iron production of up to 12.000 t/d

• Short intermediate tapping time. 20 mins

• Long operation on the same hole. more than 20 days

• Easy drilling at the scheduled time. no 02

• Long stable taphole length. >1/3 H

• Low plugging consumption: 3 times (r*r*π*L)

• Long cast duration. up to 200 mins

• Low emission into the atmosphere

• Controlled cast rate

Revised 3/2015

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All DALMIA SEVEN Refractories taphole clays are eco-friendly resin bonded based on high alumina raw materials.

Fast curing and low emissions to the atmosphere ensures the clay adheres to the EC legislation.No special labeling is required.

Brand name BF typology Mineral base BF daily productivity Si3N4

additionSic+Si3N4+C

%

DS TAP 180 Small size Chamotte Bauxite < 3.000 t no 28

DS TAP 200 Small size BFA Bauxite < 3.000 t no 29

DS TAP 225 Medium size BFA Bauxite 3.000 - 5.000 t no 32

DS TAP 300 Large size BFA 3.000 - 5.000 t yes 34

DS TAP 375 Large size BFA 5.000 - 13.000 t or higher yes 38

DS TAP 400 Large size BFA 5.000 - 13.000 t or higher yes 40

Special applications

DS TAP 055 PL BFA yes 42

DS TAP HB 30 BFA yes 34

DALMIA SEVEN clays are designed for any type of mudgun. Their binding

system has an improved temperature threshold preventing hardening in the

mudgun barrel and cone.

OCL PRODUCTS CATEGORY Al2O3% Fe2O3% SiO2% CaO%

BD 1100C/ 24 hrs

(Gm/cc)

CCS 1100C/ 24 hrs (Mpa)

CCS 15000C/

3 hrs (Mpa)

PLC 15000C/

3 hrs (%)

DRI ROTARY KILN WORKING

CASTABLE DS Cast 80 NX 80.0 1.5 13.0 1.6 2.85 100.0 120.0 +/-1.0

LINING DS Cast 80 NXA 75.0 2.5 15.0 1.6 2.70 85.0 95.0 +/-1.0DS Cast 80 NXB 77.0 1.5 15.0 1.6 2.75 95.0 110.0 +/-1.0DS Cast 60 ND 61.0 1.0 32.0 1.6 2.50 75.0 100.0 +0.5DS Cast 60 NM 60.0 1.1 32.0 1.6 2.45 80.0 100.0 +/-1.0DS Cast 60 NMA 57.0 1.5 34.0 3.0 2.40 75.0 90.0 +/-1.0DS Cast 45 NM 45.0 1.5 44.0 1.7 2.20 50.0 75.0 +/-1.0DS Cast 50 NM 50.0 1.2 42.0 1.7 2.30 70.0 90.0 +/-1.0

PATCHING & MISC APPLN DS Cast 90 RX 85.0 1.5 5.0 5.0 2.80 50.0 50.0 +/-1.5

DS Cast 88 RB 86.0 1.0 5.0 2.75 40.0 55.0-0.5-1.0

at 1550C

DS Cast 95 RR 95.0 0.5 1.0 5.0 3.00 55.0 65.0 +/-0.5

DS Cast 60 RM 60 1.5 30 5.5 2.30 45.0 55.0 +/-1.5

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• Preliminary study and investigation for the project edition

• Design and architecture, bill of materials, thermal calculation

• Full range of products for lining and maintenance

• Regular, low, ultra-low and no-cement castable

• Regular and dense low-cement gunning mix

• Ramming

• Shotcreting

• Grouting, patching and dry vibrating products

serviCes provided

• Supply of mixer, gunning machines, pump, etc.

• Supervision and monitoring by experienced technicians

• Global Research & Development

• Monitoring and targeting of results

• Technical advice from experts

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enquiry@dalmiaseven.com

+91 9680774143 | +91 9830525152

Seven Refractories, Karaganda, Kazakhstan

Dalmia Seven Katni, India

india Corporate office:Dalmia Seven Refractories Ltd.4, Scindia House, Connaught PlaceNew Delhi 110001Phone: +91 11 23457100

Plant:Plot No. 8 & 13, Phase-III Lamtara Industrial Area Katni – 483501 Phone: +91 7622 266259, 266306

sloveniaPlant:

Seven Refractories d.o.o.Poslovna cona Risnik 40,6215 DivacaTel. +386 5 739 57 60

KazaKhstanPlant:LLP Seven Refractories AsiaQuarter 028, block 1655, Bukhar-Zhirau district100408 Doskey, KaragandaTel. +77 212 404 777

Seven Refractories, Divača, Slovenia