Connect with us

Economy & Market

Versatile, Vital & Dependable

Published

on

Shares

Roots Blowers have been a common utility in cement plants for a very long time now. Whenever a large volume of air is to be used at constant pressure, a Roots Blower is the right equipment.
The Roots Blower design was patented way back in 1860 by Philander Higley and Francis Marian Roots. The name of the equipment is derived from the name of the scientist; the blower is recognised as ?Roots Blower? or ?Rotary Air Blower? in the industry.
The executing mechanism of the blower is intake of air from the inlet; dual impellers rotating in different directions or the same direction trap the air during the rotation between the casing and impeller and discharge at the outlet. The mechanism of the blower is unique and traditional. The blower throws a consistent volume of gas to the outlet without discharge. The gas-blowing capacity of a Roots Blower depends on the size of casing and rotating part. Thus, a Roots Blower is unique compared to a compressor. The manufacturing of Roots Blowers is done either by SMEs or MSMEs in various parts of the country. There are a good number of manufacturers meeting the requirement of the industry.

The blowers have higher efficiency at moderate compression ratios, and are most efficient in the compression ratios of 1.1 to 2. They find use in applications which require relatively constant flow rate at varying discharge pressures. There are various types of Roots Blowers, mainly categorised as air-cooled blowers and water-cooled blowers. The capacity of blowers varies from 10 M3/Hr to 14000 M3/Hr. The blower should be made up of good quality and sturdy parts. There should be no machine vibration during operation execution, as this may bring down the blowing capacity of the machine. The Roots Blower must be a power-saving unit, and continue functioning over a long period of time, with low electricity consumption.

Twin-lobe rotary air blowers consist of a pair of involute profiled (shape of 8) lobes/rotors rotating inside an oval-shaped casing, closed at ends by side plates. One lobe is the driving lobe, which is driven by external power, while the driven lobe is driven by a pair of equal ratio gears. Both lobes rotate at the same speed, but in opposite directions. As the rotors rotate, air is drawn into the inlet side of the cylinder and forced out of the outlet side against the system pressure. With each revolution, four such volumes are displaced.

In the case of three-lobe rotary blowers, the shape of the rotor is different. The two three-lobe rotors rotate in a direction opposite to each other. Running on the same operating speed, three-lobe blowers can deliver larger air flow and volume than conventional two-lobe blowers.

Since the lobes run within the casing with finite clearances, no internal lubrication is required. Thus, the air delivered is 100 per cent oil-free. These blowers deliver, practically, a constant flow rate independent of the discharge pressure conditions. The flow rate is largely dependent on the operating speed.

These machines are extensively used in applications such as pneumatic conveying, aeration, cement plants, water treatment plants for filter backwash, aquaculture, aeration etc. They are used as general utilities, more commonly where the distance is short and a large volume of air is required (during blending, aeration, fluidisation and conveying).

Fuller-Kinyon (FK) Pump
The Fuller-Kinyon (FK) Pump was first introduced in 1926. It is a very versatile equipment, popular for lower power consumption, less maintenance needs, and increased efficiency, flexibility and reliability over other pneumatic systems. It is commonly known as an FK pump or a Screw Pump and it is ideal for conveying fine powders without risk of blowback. The design of the pump ensures that a material seal is formed when the product is compacted in the barrel and forced against the counterweighted flapper valve preventing air leakage back through the screw. Only one moving part means less maintenance and high reliability in the most demanding environments. It has an inlet for supply of compressed air.

The FK Pump operates with line pressures up to 30 psig. Parts can be replaced without removing the pump from service. Recent technological improvements on the FK Pump include the use of high-wear pump screws, and the pneumatic flap controller for optimisation of throughput of the system.

Screw Pumps are constructed of mild and structural steel, and mounted on a base. These pumps can be equipped with pedestal blocks that support a pump screw which helps to provide a smooth, balanced operation. The screw is dynamically balanced. Areas of this screw, along with other parts of the pump in direct contact with the material to be conveyed, are made of hardened, wear-resistant material and special hard surfacing where required. The screw is directly coupled to the driving motor but can be V-belt driven.

The materials to be conveyed enter from the hopper by gravity. Then the material is compacted as it is advanced. Its density is further increased in the space between the terminal flight of the screw and the face of the non-return valve to form a seal against the transport line pressure, thus preventing blowback.

The material then enters the discharge body, is fluidised by compressed air, and is conveyed into the transport line.

Dry bulk materials are conveyed literally anywhere a pipeline can be run and to any number of delivery points. Distances of 4,500 feet (1,371 meters) are not uncommon.

Multinational companies like FLSmidth are well-known suppliers of these types of pumps. Currently, upgrades of the pump are available.

Continue Reading
Click to comment

Leave a Reply

Your email address will not be published. Required fields are marked *

Concrete

Cement Makers Reaffirm Commitment to Sustainable Growth

Published

on

By

Shares

World Environment Day spotlight on innovation and circularity

On World Environment Day, the Indian cement industry reiterated its commitment to supporting India’s climate ambitions through sustainable manufacturing, resource efficiency and the adoption of cleaner technologies.

The Cement Manufacturers’ Association (CMA) said the sector remains aligned with the Government of India’s Net Zero commitments and is accelerating efforts to reduce its environmental footprint while supporting the country’s infrastructure and development agenda.

Parth Jindal, President, CMA and Managing Director, JSW Cement, said the industry is increasingly adopting cleaner technologies, improving energy efficiency and expanding the use of alternative fuels and raw materials. He also highlighted the growing importance of circular economy practices, where industrial by-products and waste streams from one sector are utilised as resources in another.

“The Indian Cement Industry is aligned to the Government’s commitments on carbon mitigation and is accelerating the adoption of cleaner technologies, resource efficiency and circular economy practices while actively exploring the potential of Carbon Capture, Utilisation and Storage (CCUS) as a critical pathway for deep decarbonisation,” said Jindal.

He added that coprocessing industrial waste and by-products helps conserve natural resources, reduce disposal requirements and lower the environmental footprint across multiple sectors.

According to Jindal, sustainability is no longer limited to manufacturing processes but is increasingly influencing investment decisions, innovation strategies and long-term growth plans within the industry.

Echoing similar views, Dr Raghavpat Singhania, Vice President, CMA and Managing Director, JK Cement, said sustainable development extends beyond emissions reduction and must also focus on responsible resource utilisation and waste minimisation.

“Sustainability in the built environment cannot be measured by emissions alone. It is equally about how efficiently we use resources, how effectively we minimise waste and how responsibly we create the infrastructure that will serve future generations,” said Singhania.

He noted that the cement industry is advancing its sustainability agenda through greater resource efficiency, increased circularity, technological innovation and continuous improvements in manufacturing practices. As a key contributor to India’s infrastructure development, the sector has a critical role to play in balancing economic growth with environmental responsibility.

On the occasion of World Environment Day, industry leaders reaffirmed their commitment to supporting India’s climate goals while delivering the materials required for resilient, durable and sustainable infrastructure.

 

Continue Reading

Concrete

Building a Greener Future Together

Published

on

By

Shares

Environmental sustainability requires immediate action, not just long-term commitments and discussions. Recycling, circular economy practices, and technology-driven waste management can help industries reduce environmental impact while supporting sustainable growth.

Author: Jignesh Kundaria, Director and CEO, Fornnax Technology

World Environment Day serves as an important reminder that environmental sustainability can no longer remain confined to discussions, reports, or long-term commitments. The environmental challenges facing the world today demand immediate, measurable, and collective action. Across industries and communities, waste generation continues to outpace our ability to process it responsibly, placing increasing pressure on ecosystems, natural resources, public health, and the well-being of future generations.

One of the most significant shifts required today is a change in how society perceives waste. Rather than being viewed as a material to be discarded, waste must be recognised as a valuable resource that can contribute to both economic growth and environmental protection when managed through the right technologies and systems. This mindset forms the foundation of the circular economy model that countries across the world are increasingly adopting to reduce landfill dependence, recover valuable materials, and create more sustainable industrial ecosystems.

India has made meaningful progress in strengthening awareness around sustainability, recycling, and environmental responsibility over the past decade. Significant efforts are being made to formalise the recycling sector through improved infrastructure, technology adoption, policy implementation, and broader stakeholder participation. These developments are creating a stronger foundation for responsible waste management and resource recovery across the country.

However, achieving long-term environmental impact requires collaboration from all stakeholders. Industries, policymakers, technology providers, and communities must work together with greater accountability to strengthen recycling ecosystems, encourage responsible waste management practices, and create sustainable outcomes through consistent execution rather than temporary interventions.

As someone closely associated with the recycling industry, I firmly believe that technology will play a decisive role in addressing future environmental challenges. Advanced recycling systems have the potential to recover valuable resources, reduce pollution, minimise landfill burdens, and conserve energy, creating a more sustainable future for generations to come. This belief is deeply reflected in Fornnax’s motto, “Committed to Create a Green Future,” which embodies our commitment to building long-term environmental value through innovation and responsible action.

At the same time, technology alone cannot deliver meaningful change. Real progress requires intent, awareness, participation, and a shared sense of responsibility. Sustainable development can only be achieved when innovation is supported by collective action and a genuine commitment to environmental stewardship.

On this World Environment Day, let us move beyond conversations and take meaningful steps towards creating a cleaner, greener, and more sustainable planet. By embracing innovation, strengthening recycling ecosystems, and acting responsibly today, we can create lasting environmental impact and secure a better future for generations to come.

Continue Reading

Concrete

Dalmia Bharat Acquires Jaiprakash Associates Cement Assets for ₹2,850 Crore

Published

on

By

Shares

Dalmia Cement executed a Business Transfer Agreement with Jaiprakash Associates and Adani Infra, to acquire 5.2 MnTPA of cement capacity across Madhya Pradesh and Uttar Pradesh.

Dalmia Cement (Bharat) announced on May 22, 2026 that it had signed a Business Transfer Agreement with Jaiprakash Associates Limited and Adani Infra (India) Limited for the acquisition of cement plants located at Rewa in Madhya Pradesh and Churk, Chunar and Sadwa in Uttar Pradesh. The deal was struck at an enterprise value of ₹2,850 crore and is expected to close within two weeks of execution.

The acquired assets from Jaiprakash Associates include 5.2 MnTPA of cement capacity and 3.3 MnTPA of clinker capacity. The package also covers 99 MW of thermal power capacity and railway sidings at Rewa, Chunar, and a common siding at Churk. This infrastructure gives the acquisition immediate operational utility beyond just production tonnage.

The transaction has a long backstory. Dalmia Cement had originally entered into a framework agreement with Jaiprakash Associates in December 2022, covering the sale of these business assets along with a long-term clinker supply arrangement. However, before the deal could be completed, Jaiprakash Associates was admitted to insolvency proceedings under the Insolvency and Bankruptcy Code. The earlier agreements could not be consummated as a result.

In an official statement, Puneet Dalmia, Managing Director & CEO, Dalmia Bharat, said, “I am very excited about addition of these assets in our portfolio. This serves as a great strategic fit for Dalmia. It helps us move forward in our journey to be a pan India player and provide a strong head start to serve the high potential markets in Central region. I am optimistic that the expansion potential of these assets along with close proximity with Dalmia’s captive mines will help us create a capacity hub for the future”.

Following the approval of Adani Group’s resolution plan for Jaiprakash Associates under the IBC framework, Dalmia approached the new management to revive discussions. The fresh Business Transfer Agreement was executed to settle all pending disputes, legal proceedings, and arbitration matters arising from the original framework agreement with Jaiprakash Associates.

Expanding market reach

Dalmia added, “Our familiarity with these assets under the earlier tolling arrangement gives us a deep understanding of the facilities and helps us establish strong connect with channel partners and vendors. We believe that this will help us in faster ramp up of capacities and quicker inroads into the market. As we look forward, I am very confident that we will be able to leverage the strengths of Dalmia to operate these assets in a manner where we can maximise value creation for all our stakeholders.”

With the addition of these plants, Dalmia Bharat’s total installed cement capacity will rise to 54.7 MnTPA upon consummation. The company has further expansion projects underway at Belgaum, Pune, and Kadapa, which are expected to take overall capacity to 66.7 MnTPA by Q2 to Q3 FY28.

The Central India location of the Jaiprakash Associates plants gives Dalmia Bharat faster access to markets in Madhya Pradesh and Uttar Pradesh than a greenfield build would have allowed. The company also cited debottlenecking and brownfield expansion as near-term opportunities at the acquired sites. Dalmia Bharat said the assets were expected to contribute positively to EBITDA and overall returns, given the pricing environment in the region and the company’s cost structure.

Continue Reading

Video Thumbnail

    SIGN-UP FOR OUR GENERAL NEWSLETTER


    Trending News

    SUBSCRIBE TO THE NEWSLETTER

     

    Don't miss out on valuable insights and opportunities to connect with like minded professionals.

     


      This will close in 0 seconds