SUZHOU CMT ENGINEERING CO., LTD. |
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850 Iron Blast Furnace Tuyere Cooler Copper Stave Launder
Supply and service scope:
Feasibility Studies
Plant Design
Material and Equipment Supply
Commissioning and Start-Up
Construction, Installation and Supervision
Contract Management and Implementation
Plant Renovation
Global Consulting Services for Plant Operation
CMT has been supplying different kinds scale of blast furnace at
home and aboard on the basis of Turn-key.
Copper Stave
Copper staves are made of oxygen-free copper plates and applied
deep-hole drilling and automatic welding; Their copper content
Cu≥99.95%, electrical conductivity ≥98% IACS, tensile strength
Rm≥200MPa; Copper staves have the advantages such as low thermal
resistance, low work temperature, high heat load etc. Besides of
typical copper staves, we also provide design, R&D, manufacture
and after-sale service for taphole copper staves, tuyere area
copper staves, copper staves with ledge, hearth area copper staves,
and kinds of special shaped copper staves for blast furnace revamp.
Typical Copper Staves
Typical copper staves are made of oxygen-free copper plates, they
have the advantages such as low thermal resistance, low work
temperature, high heat load and low thermal loss etc., and provide
reliable basis for realizing the goal 15-20 year working life of
blast furnace by forming "non overheating cooling system". It's
applied for new built blast furnace and most areas of blast furnace
stack without special installation limitation.
Copper Stave with Ledge
For special type of blast furnace, copper stave with ledge can
optimize the connection between copper stave, tuyere area and cast
iron stave of furnace stack, can solve the problem of the large gap
between part of copper stave and furnace shell, meanwhile, it also
can prevent refectories from slip and prevent gas from over
flowing, and provide support for refectories.
Special Shaped Copper Stave
This design is applied to copper stave replacement for blast
furnace revamp, which used copper cooling plate or cast iron stave
in the original blast furnace. We can provide more reasonable
design and manufacture proposal for copper stave, according to the
existing furnace shell opening and without change them.
Copper Plate Tuyere
Swirling copper plate tuyeres are mainly used in metallurgical and
chemical industries etc. They are usually installed in the furnace
wall between furnace bosh and furnace bottom, which are subject to
heat washout by liquid slag and iron, and seriously wore by falling
heat material, their working environment is extremely serious.
Swirling copper plate tuyere manufactured by us, using forged pure
copper plate as raw material, and then they shall become finished
products by being shaped specially and welded, and this product has
sound water channels structure. Its use-life is greatly lengthened
with assured velocity of the water, which enables stableness and
high-yield production of the blast furnace.
Tuyere
Accurate structure dimensions, good thermal property, dimensions of
internal cooling water channels strictly controlled, accurate and
steady water flow parameter; with special structure of swirling
cooling channels to intensify the cooling effectiveness of the end;
According to the furnace condition and working environment, tuyere
nose is treated intensively by over laying welding and its
wearability is much higher than that of pure copper plate.
Tuyere internal structure is used swirling cooling channel design,
according to blast furnace size, inlet water pressure, flow
parameters etc. offered by user, to determine the chamber quantity
and the flow area of each chamber, with reasonable internal water
cooling channel. Under the condition of guarantee excellent cooling
effect, it ensures the stable operation of blast furnace.
Tuyere Cooler
Main component of tuyere cooler is made of pure copper forged
piece, and then it shall become finished product by being shaped
and welded. Pure copper forged piece has the characteristics of
high density, high strength, high rigid, stronger thermal
conductivity and stronger heat shock resistance. Its internal water
cooling channel is using scientific and reasonable round type
structure. Compared to the casting tuyere cooler with same
specification and wall thickness, its thermal conductivity
capability (water velocity) is improved significantly. Such
outstanding feature makes tuyere cooler can bear the increased heat
flow strength and ensure blast furnace operation within safe
temperature range, when furnace wall erosions and falls off, the
tuyere cooler is exposed to the furnace and its working environment
is as same as copper tuyere.
Copper Cooling Plate
Copper cooling plate is mainly used in metallurgical, chemical
industries etc. And it is an important cooling element for blast
furnace. It is installed in the bosh, belly and stack of the blast
furnace. Based on the high thermal conductivity of copper, using
cooling water to take away the heat transferred from inside of the
blast furnace, to protect the refractory material of the furnace
body. So it prolongs the life of the blast furnace and achieves the
aim of high yield and low loss.
According to the user demand and copper cooling plate type, design
the water cooling channel scientifically and reasonably. Single
chamber cooling channels quantity is ≤6, double chambers (double
inlets & outlets) cooling channels quantity is ≥8, which
ensures sufficient cooling strength, and meets the requirement of
prolong work life under the condition of mass heat loading of
furnace body.
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