Process Engineering & Industrial Fabrication — Hyderabad, India

Built on decades of field-proven engineering

From rotary kilns and cyclone separators to full process plant consulting — LIRN Group fabricates, engineers, and delivers across the complete industrial spectrum.

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25+

Years in industry

500+

Projects delivered

Divisions

Our divisions

Three practices, one team

Each division operates with dedicated expertise. Together they cover the full lifecycle of an industrial process plant.

Equipment Manufacturing

LIRN Fabrications

Rotary kilns, cyclone separators, bag filter houses, conveyors, trusses, and heavy industrial structures — fabricated to specification.

—Rotary Kilns & Dryers

—Cyclone Separators

—Bag Filter Houses

—Conveyors & Elevators

—Trusses & Sheds

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Process Engineering

LIRN Solutions

Root cause analysis, pressure loss budgets, duct sizing, system documentation, and full plant consulting for mineral processing operations.

—Root Cause Analysis

—Pressure Loss Budgets

—Duct Sizing & Design

—System Documentation

—Bleaching Earth Consulting

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Coming Soon

LIRN Clay Tech

Calcium bentonite bleaching earth — thermally activated and supplied for edible oil refineries. Processing operations launching soon.

—Calcium Bentonite

—Bleaching Earth

—Edible Oil Grade

—Custom Activation

—Direct Supply

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Equipment we fabricate

Built to spec, built to last

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Thermal

Rotary Kilns & Dryers

Direct & indirect fired

Dust Collection

Bag Filter Houses

Pulse-jet & shaker types

Separation

Cyclone Separators

Single & multi-cyclone

Material Handling

Belt Conveyors

Flat & troughed belt

Material Handling

Screw Conveyors

Horizontal & inclined

Material Handling

Bucket Elevators

Centrifugal & continuous

Size Reduction

Hammer Crushers

Mineral processing grade

Structural

Trusses & Sheds

Heavy industrial structures

Gas Handling

Industrial Ducts

Custom duct fabrication

Storage

Storage Tanks

Mild steel & SS

Material Handling

Chain Conveyors

En-masse & drag chain

Thermal

Rotary Dryers

Co-current & counter-current

Case study

From backfire to stable operation — in one engagement

Our first LIRN engagement diagnosed a recurring furnace backfire and visible stack emissions at a 10 TPH calcium bentonite processing plant in Karnataka.

Client and project details anonymized. Technical findings shared for reference only.

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LIRN Solutions — Process Engineering

Kiln Bag Filter RCA — 10 TPH Calcium Bentonite Plant, Karnataka

85%

Fan draft recovered

74%

Energy saved

Backfire events after fix

Problem

Cyclic furnace backfire every 2-3 minutes. Visible dust from the stack. Two 600 mm ducts consuming 85% of ID fan draft capacity.

Fix

Enlarge ducts to 1,000-1,200 mm. Switch to DP-triggered pulse cleaning. Reduce ID fan from 47 Hz to 25-32 Hz post-fix.

Ready to start?

Have a process problem?
Let's solve it together.

From fabrication enquiries and RCA requests to full plant consultancy — reach us directly. No intermediaries, no delays.