CONSTROMECHTMEngineering Solution

Industries · Thermal Power

Thermal Power PlantsChain Equipment Systems

Chain equipment for every stage of a thermal power plant: what each machine does, the chain it runs on and the design data behind it — with the CONSTROMECH products that go into it.

6
Plant stages
8
Equipment systems
4
Chain types

Follow the material flow

Chain equipment, stage by stage

Plant zones in the order material moves through them. Each machine lists its duty, the chain it runs on and the design points we build to.

01

Wagon Tippler & Track Hopper Zone

1 equipment system

At a glance · Coal & Alternative Fuel Feeding

Apron Feeders & Drag Conveyors
High-capacity feeders (~300–1 000 t/h) for coal, biomass, pet coke.
Bucket Elevators
Central-chain types for vertical transport to mills or bunkers, handling abrasive coal dust.

Rotary Wagon Tippler System (with Apron Feeder)

  • Purpose: Discharge of bulk coal from wagons to track hoppers.
  • Equipment: Heavy-duty Apron Feeders installed below hoppers.
  • Chain Type: Forged link or round link chains; pitch > 250 mm.

Features

  • Designed for impact loading and high throughput (600–1200 TPH).
  • Replaceable wear liners on pans.
  • Shock-resistant drive units with overload protection.

02

Primary Crushing & Transfer House

2 equipment systems

Crusher House Pan Conveyor

  • Purpose: Transfers crushed coal to bunkers or storage silos.
  • Equipment: Deep Pan Conveyor with heat and abrasion-resistant chains.
  • Chain Type: Central chain with drop-forged links.

Features

  • Steel apron pans for hot and sharp-edged coal.
  • High torque sprockets with hardened rim segments.
  • Capacity range: 500–1500 TPH.

Bucket Elevators (Coal Bunker Charging)

  • Purpose: Elevate coal to bunkers or day hoppers from intermediate storage.
  • Equipment: Central Chain Bucket Elevator or Round Link Chain Elevator.
  • Chain Type: Central forged chain or round link per DIN 764/DIN 22252.

Features

  • Vertical lifts up to 60 m.
  • Dust-tight casing with inspection doors.
  • Buckets made of wear-resistant plate (Hardox or similar).

03

Pulverizer & Mill Feeding

1 equipment system

Drag Chain Conveyor

  • Purpose: Transfers coal from bunker to mill feed chute.
  • Chain Type: Drop-forged or cast link drag chain.

Design Features

  • Sealed design to prevent dust escape.
  • Hardened flights and guide rails.
  • Equipped with anti-jamming interlocks

04

Ash Handling & ESP

3 equipment systems

At a glance

Submerged Scraper Conveyors
Chains with welded flights for bottom-ash removal; operates in abrasive, high-temp environments (up to 1 200 °C).
Flow Conveyors / Flow Bars
For ESP ash conveying—low-speed, dense-phase transport.

Submerged Scraper Chain Conveyor (SSCC)

  • Purpose: Handles bottom ash from boiler hoppers submerged in water.
  • Chain Type: Case Hardened steel twin-strand chain with steel scrapers.
  • Chain Pitch: Typically, chain dia. And capacity depending on ash volume.

Design Features

  • Carbon steel scraper bars for corrosion resistance.
  • Reinforced chain guides for thermal shock resistance.
  • High reliability in 24×7 duty cycle operations.

Flow Conveyor for ESP Dust

  • Purpose: Conveys fly ash from ESP hoppers to ash handling system.
  • Equipment: Low-speed enclosed Flow Conveyor.
  • Chain Type: Drop-forged steel scraper chain.
  • Capacity: 10–100 TPH (dry fly ash).

Design Aspects

  • Horizontal layout with minimum elevation.
  • Explosion-vent doors and dust-tight construction.

05

Ash Silo Discharge & Loading

1 equipment system

Flow Conveyors + Telescopic Loading Spouts

  • Purpose: Metered discharge from ash silos to truck loading systems.
  • Chain Type: Drop-forged scraper chain in discharge conveyors.

Components

  • Flow conveyor discharging into loading chute.
  • Telescopic spout with dust sealing bellow.

06

Flue-gas & Dedusting byproducts

At a glance

Drag-chain Conveyors
For FGD gypsum and desulphurization sludge—enclosed, low-spill systems around crushers or hoppers.

Chain Types Used Across Power Plant Applications

Chain TypeApplication ZoneDescription
Forged Link ChainApron Feeders, SSCsHigh tensile strength, corrosion and heat resistant
Round Link ChainBucket Elevators, ESP FeedDIN standard chains for reliable vertical lifting
Central ChainBucket Elevators, Pan ConveyorsHigh strength links with accurate pitch
Drop-Forged Scraper ChainESP conveyors, Flow conveyorsDust-tight conveying, suited for ash applications
Power Plant ServicesRetrofit, capacity enhancement, conversion and commissioning — zone by zone through your thermal power plant.View services

CMECH Technical Services

How our field team supports thermal power plants

Every engagement is carried out by our own field engineers — from the first inspection to commissioning and hand-over.

How we work
  • Site Inspections & Equipment Audits

    Bucket elevators, conveyors, ash systems, reclaimers

  • Installation & Commissioning Supervision

    Chains, buckets, bearings, drive units, structural supports

  • Corrective & Preventive Maintenance

    Hot/cold chain replacement, sprocket rebuilds, belt tracking

  • Retrofit & System Upgradation Projects

    Chain-to-belt elevator conversions, scraper design mods, capacity enhancements

  • Operational Optimization Support

    Root cause analysis, performance tuning, load balancing

Chains or spares for your thermal power plant?

Send us your drawing or requirement — we respond within one business day.