Envirocon leading in Design, Manufacturing, Execution & Commissioning (Turnkey Basis Solutions) of Solid Handling Systems and Air Pollution Control Equipment to a wide range of industries.

Challenges

To Design a perfect solution to achieve guaranteed emissions.

Solution

RAJDEEP ENVIROCON provided Fume Extraction System with spark arrestor to arrest the immediate spark coming out of the fumes. Rajdeep Envirocon provided an efficient pulse jet online bag filter with centrifugal fan and a double – line bag house with Motorized Swivelling mechanism which would move the hood during the hot metal pouring operation.
The above system eliminated hazardous fumes completely and ensured that the workers can work in a safe environment.

System Description

The Fume Extraction System consists of the Following:

Online Bughouse with 4 modules
Centrifugal Fan with high efficiency.
Fixed Hoods for Tap hole (Engineering & Fabrication Drawings by Rajdeep Envirocon)
Swivelling Hoods for Ladle (Engineering & Fabrication Drawings by Rajdeep Envirocon)
Spark Arrestor to eliminate any spark. TYPE OF CYCLONE/ SPARK ARRESTOR QUAD CYCLONE
Rotary Airlock Valve for Lead Oxide Dust Discharge

Design Basis

For Pulse Jet Online Bag Filters

Gas Flow Volume : 1,10,000 Am3/hr
Operating Temperature: 120 Deg C
Particle size=0.01-1μm.sp.gr.=1.8-2.3
Dust Load at Inlet : 10 – 20 g/Nm3
Pressure drop across SPARK ARRESTOR/CYCLONE : < 80 mmwg
Static Pressure For Fan : More 500 mmWG

Performance Guarantee by Rajdeep Envirocon

Outlet Emission at Stack : < 10 mg/Nm3
Pressure drop between Bag filter inlet flange of expansion joint to outlet flange of outlet expansion joint: <150 mmWG Max
Pressure drop across SPARK ARRESTOR/CYCLONE: < 80 mmWG Max

Working of Fume Extraction System

The fumes from tap hole & ladle will get sucked into the baghouse via spark arrestor to avoid any spark going into the baghouse, which could damage the filter bags.

The necessary negative pressure required for effective suction of fumes will be generated by a backward curved Induced Draft (ID) fan.

The swivelling hood at the ladle area is moved over the ladle with the help of a forward & reverse starter and when the pouring operation is completed, it is moved back to the parking position. This operation of moving the swivelling hood is very easy and convenient for the workers working in the blast furnace area.

All the Dust particles in the fumes are captured in the Baghouse with 99.9% efficiency and the outlet emission at stack is just 10 mg/Nm3, which cannot even be seen with the naked eyes.

A fume extractor is a system that utilizes a fan using negative draft to pull fumes and dust particles in to a contained filtration system. This process removes hazardous particles from the air. Many industries and processes such as welding, sanding, grinding, spraying and processes involving exhaust fumes need this type of extraction to protect people, machinery and of course the environment that we all share.

Advantages

1. Fume extraction systems help protect workers from serious illnesses. Fume extractors are important for reducing the amount of harmful compounds in the air.

2. A healthy, clean and safe working environment has recently become a priority for many businesses, largely due to the coronavirus pandemic. In particular, indoor air quality is now a hot topic as it plays a key role in preventing the spread of disease.

3. In workplaces that are exposed to harmful chemicals, fumes or gases, making sure that the air is clean before employees come into contact with it is essential. For example, fume extraction while soldering or 3D printing will contribute to effective indoor air circulation.