» Projects » Projects & Plants
At MHL, we specialize in undertaking export of complete
project to various destinations from China. As the mainland provides
competitive advantages of economy and world class technology.
Projects & Plants
MHL deals in PROJECTS / PLANTS transfer from P.R.
China. The mainland is well known not only for world class technology but
also value for money. Project handling and management is very important for
manufacturing & supplying a quality project as per the clients need. MHL
has proved its capability by completing critical projects within the
stipulated time frame and without compromising on quality and safety
standards. This has allowed us to gain confidence of our prestigious
clients. The advantage of proximity to India, the abundant labour force and
raw materials makes China a natural source for plants, equipments and
spares. As a result, the transfer of technology and equipments from China to
India is going to rise considerably. By providing companies with
high-quality machinery and equipment, MHL has made its way into the growing
world of trading. At MHL, we value quality, safety, and environmental
consciousness and implement the same in all our projects.
Iron ore are rocks or minerals from which iron can be extracted. Ores
contain iron whose weight percentage may vary massively (43% 68%).
The ores with less amount of iron in them have to go through a benefication
procedure which involves Crushing, screening, scrubbing, classification,
gravity separation, magnetic separation, froth flotation, Dewatering,
Conveying Systems. This helps in the concentration of iron content within
the ore. Along with this, separation of certain elements from the ore
produces certain output which is the raw material for other industries like
The process so developed basically involves crushing, classification,
processing of lumps, fines and slimes separately to produce concentrate
suitable as lump and sinter fines and for pellet making.
The quality is essentially defined as Fe contents, Level of SiO2 and Al2O3
contamination. The process aims at maximizing Fe recovery by subjecting the
rejects/tailings generated from coarser size processing to fine size
reduction and subsequent processing to recover iron values.
Our deliverables in the field of iron ore beneficiation are:
- Pendulum feeder
- b) Rod mill
- c) Chute feeder
- d) Magnetic separator
- e) Spiral classifier
- f) Floatation cells
- g) High frequency screens
- h) Dryer machine
- i) Agitation VAT
- j) Ore concentrate
- k) Ball mill
- l) Shaking table
- m) Disc granulator
- n) Spare parts of all the above mentioned items.
Pelletizing is the process of molding or compressing products into shape of
pellets. The objective is to produce pellets in an appropriate band of sizes
and with mechanical properties high enough to maintain its usefulness during
the stresses of transference, transport, and use. Both mechanical force and
thermal processes are employed to produce the desirable pellet properties.
Generally, there are two alternatives available for industrial production of
iron ore pellets; drum and pelletizing disk.
In order to achieve high resistance metallurgic mechanics and appropriate
characteristics, the pellets are subjected to thermal processing, which
involves stages of drying, daily pay burn, burn, after-burn and cooling (in
a cooling tower). The duration of each stage and the temperature that the
pellets are subjected strongly influence the final product quality.
The process of sintering involves the heating of fine iron ore with flux
and coke fines or coal to produce a semi-molten mass that solidifies into
porous pieces of sinter with the size and strength characteristics necessary
for feeding into the blast furnace. Raw material for making of iron is
obtained by this process.
Blast furnace is used to chemically reduce and physically convert iron
oxides into liquid iron called "hot metal". The metallurgical
furnace is a huge, steel stack lined with refractory brick, where iron ore,
coke and limestone are charges into the top, and preheated air is blown into
the bottom. The raw materials require 6 to 8 hours to descend to the bottom
of the furnace where they become the final product of liquid iron and liquid
slag. These liquid products are drained at regular intervals from the bottom
of the furnace. The hot air that was blown into the bottom of the furnace
ascends to the top within 6 to 8 seconds after going through numerous
chemical reactions. Once a blast furnace is started it can continuously run
for four to ten years with only short stops to perform planned maintenance.
Mini Blast Furnace
We can efficiently execute wide range size MBF project from small iron
making furnace to medium on turnkey basis. The blast furnace can be made
available in different capacities like 35M3, 65M3, 128M3, 158M3 and 230M3 .
Daily pig iron production is from 100-700 tons. The blast furnace will be
designed for high practicality, excellent performance, low investment and
Steel Making Projects
In this stage, impurities such as phosphorus,
sulfur, and excess carbon are removed from the raw iron, and alloying
elements such as nickel, manganese, chromium and vanadium are added to
produce the specific grade of steel.
The modern Steelmaking processes is broadly classified into two categories:
primary and secondary steelmaking. Primary steelmaking process uses new iron
as the feedstock, usually from a blast furnace. Secondary steelmaking uses
scrap steel as the raw material.
EAF (Electric Arc Furnace)
The electric arc furnace offers an alternative method for production of
bulk steel. Unlike the basic oxygen route, this furnace does not use hot
metal. It is charged with "cold" material which is manly steel
scrap - which could have been otherwise environmentally damaging. Various
other forms of raw material are also available.
Steel scrap is first tipped into the electric arc furnace using an overhead
crane. A lid is then carefully swung into position over the electric arc
furnace. This lid comprises of three graphite electrodes which are lowered
into the electric arc furnace. Electric current is passed through the
electrodes which forms an arc. The heat generated by this arc melts the
During the melting process, other metals (ferro-alloys) are added to the
steel to achieve the desired chemical composition. Also oxygen is blown in
to the electric arc furnace for purifying the steel.
After samples have been collected to check the chemical composition of the
steel, the electric arc furnace is tilted to allow the slag, which is
floating on the surface of the molten steel, to be poured off. The electric
arc furnace is then tilted in the other direction and the molten steel is
poured into a ladle, where it furthered for secondary steelmaking process or
is transported to the caster.
BOF (Basic Oxygen Furnace)
This process of steelmaking involves the chemical reduction of iron ore,
using an integrated steel manufacturing process or a direct reduction
process. In the conventional method of steel manufacturing , the iron in
blast furnace is converted into steel in a basic oxygen furnace (BOF). Basic
oxygen furnace are typically employed for high-tonnage production of carbon
In the BOF process, the preliminary stages of steelmaking include coke
making and iron making. Pig iron is manufactured from sintered, pelletized,
or lump iron ores using limestone and coke in a blast furnace. It is then
fed to a BOF in the form of molten slag along with scrap metal, fluxes,
alloys, and high-purity oxygen to produce steel. In some integrated steel
mills, sintering (heating without melting) is used to agglomerate fines and
so recycle iron-rich material like mill scale.
Vaccum degassers are high efficiency inline modules that are basically used
to remove the dissolved gases. These degasser can be horizontal, vertical or
round vessel. High pressure vacuum pressure is created to pull in the gas
cut mud. When the liquid enters the tank it will flow and be distributed to
a layer of internal baffle plates designed for the mud to flow in thin
laminar film. The surface is exposed to a vacuum that forces the gas to
escape and break out of the mud. The vacuum pump propels the escaping gas
from the vessel discharging it to the rig's flare or environmental control
system. Sonication and stirring under reduced pressure usually enhances the
efficiency of the degassing process. This technique is commonly known as
Vacuum degasification. Specialized vacuum chambers, called vacuum degassers,
are used to degas materials through pressure reduction. It is commonly used
in the process of steelmaking.
Continuous Casting Machine (CCM) is revolutionary process equipment used
for continuous production of slabs in a single operation. The continuous
casting process dramatically boosts productivity and saves significant
amount of energy by eliminating the need for a soaking furnace.
The integrated machine can be used to produce slabs, blooms, and billets by
continuously pouring molten steel produced by the converter or electric
furnace into a mold. Slabs are used as the material for rolling. We
specialize in providing a full range of solutions for CCM (Continuous
Rolling mill forms an integral part of various factories in metalworking
industry. It is basically used for shaping metal by passing it between a
pair of work rolls. Rolling mills are often incorporated into integrated
steelworks, but also exist as separate plant. This type of mills can be used
for other metals, and different materials.
Product & Services