Our Service

The Company services are based on four product lines:
1. New Chimney works
2. Chimneys repair works
3. New refractory works
4. Refractory repair works
5. Silos
6. Solar Tower
7. Absorber

1. New chimney works

Chimneys and Refractories International S.r.l. is specialized in turn key projects as EPC Contractor for Chimneys of Industrial Plants.

The Company has the capability to develop the Engineering, to Procure all the necessary materials and to Construct Reinforced Concrete Chimneys with mono or multi-flue internal liners of different nature (steel, brick, FRP), with different kind of internal protection whenever required (anti-acid concrete, borosilicate or flake lining, Hastelloy or Titanium cladding) and also with borosilicate protection directly applied on the windshield.
CRInt is also capable of running EPC contracts for reinforced concrete tall structures such as telecommunication towers, highway piers, silos, suspended water tanks etc.

ENGINEERING

The company can provide

A) Thermofluodynamic design for:

  • Optimisation of liners diameter on the basis of:
    • flue gas data, required pressure at interface duct/liner transition piece between external duct and chimney liner
    • Flue gas velocity (‘wet’ or ‘hot’ stacks)
  • Pressure profile along liner height
  • Temperature profile through chimney components and relevant stress in steady and transient conditions
  • Ventilation of inner space through natural / forced draft
  • Loss of temperature along chimney height
  • Quantity and aggressivity of condensates, if any.

B) Structural design according to recognised International Standards and local design codes for:

  • Reinforced concrete foundation slabs and piling
  • Reinforced concrete windshields
  • Reinforced concrete or steel platforms for liners guide and support
  • Freestanding steel chimneys and lattice towers
  • Freestanding and sectional anti-acid brick liners
  • Top hung / bottom supported steel liners
  • Heavy lifting systems equipments
  • Provisional working platforms and decks for new constructions

PROCUREMENT

Selection of the construction materials suitable for the operating service conditions, purchase and delivery to the working site

CONSTRUCTION

A) Construction at site using qualified team and equipments for:

  • Planning of site activities
  • Slipforming, concreting, steel reinforcement installation and wood forms construction / assembling under patent of GLEITBAU Ges.m.b.H Salzburg - Austria
  • Construction of internal concrete slabs and / or steel platforms
  • Installation of internal brick liners using suspended working platforms certified by authorities or fabrication of internal steel liners and assembling at ground level
  • Heavy Lifting of internal concrete slabs, steel platforms and steel liners using hydraulic jacks under patent of GLEITBAU Ges.m.b.H Salzburg – Austria
  • Installation of auxiliary items such as lightning and lighting system, Aircraft Warning Lights, Drainage system, Expansion joints, Personnel Elevator
  • Painting of outer surface of the concrete shell

B) Supervision at site, start up procedures and commissioning.

2. Chimney repair works

 

Inspections, ordinary and extraordinary maintenance and upgrading of existing industrial chimneys.
For such works the Company can provide:

 

A) Revamping and repowering design for:

  • Re-sizing of liners on the basis of new operating conditions
  • Definition of anti-acid / thermal protection of liners according to the new operating conditions by calculation of the modified thermal profile through all chimney components
  • Control of liners internal pressure along flue gas path
  • Control of ventilation efficiency under the new operating conditions

B) Structural design verifications for:

  • Stabililty and structural capacity of windshield and liners under operating conditions
  • Chimneys retrofitting under new design or change of operating conditions
  • Repair works on the basis of inspection reports including recommendations and maintenance programs
  • Provisional access facilities to elevated working areas according to local design codes and safety regulations
  • Vibration analysis and check of resonance of existing structures with detailed monitoring reporting and proposal for suitable repair solutions

C) Selection of the construction materials suitable for the operating service conditions

D) Construction at site using qualified team and equipments for:

  • Dismantling and lowering of heavy structures and lifting of the new ones under patent of GLEITBAU Ges.m.b.H Salzburg - Austria

E) Internal brick liners and steel liners maintenance

F) Supervision at site, start up procedures and commissioning

G) Video Inspection of the internal Chimney Liners during Plant Shutdowns by means of Digital Camera and Reporting of the conditions encountered.

3. New refractory works

 

Refractory lining with bricks, concrete, fibers for Boilers, Furnaces, Reactors, Cyclones, Ducts of Power Plants, Cement and Petrochemical Plants and Glass Industry.
Acid resistant linings, resin and film membranes, tiling, throwelling compounds for floors and basins protections for any kind of industrial plants.
For such works the Company can provide:

 

A) Design for:

  • Insulating and refractory linings in accordance to the specification issued for each project including detailed construction drawings and bill of materials
  • Thermal calculations based on specified operating conditions

B) Selection of the construction materials suitable for the operating service conditions:

  • Definition of lining composition according to the above thermal calculations
  • Selection of suitable refractory materials, steel supports and anchors according to material properties and imposed operating condition

C) Construction at site using qualified team and equipments:

  • Planning of site activities
  • Brick linings installation by wide experienced team
  • Abrasion resistant linings applied by hand packing method
  • Refractory and abrasion resistant linings applied by vibrocasting method
  • Insulating and refractory linings applied by gunning method
  • Insulating and refractory linings applied by pumping / shotcreting method
  • Ceramic fibers linings installation

D) Supervision at site, start up procedures and commissioning

4. Refractory repair works

 

Inspections, ordinary and extraordinary maintenance and upgrading of existing refractory linings of Boilers, Furnaces, Reactors, Cyclones, Ducts for Power Plants, Cement and Petrochemical Plants and Glass Industry.
For such works the Company can provide:

 

A) Selection of the construction materials suitable for the operating service condition

  • Definition of lining composition according to the Client specifications
  • Selection of suitable refractory materials, steel supports and anchors according to material properties and imposed operating conditions

B) Construction at site using qualified team and equipments

  • Planning of site activities
  • Brick linings installation by wide experienced team
  • Abrasion resistant linings applied by hand packing method
  • Refractory and abrasion resistant linings applied by vibrocasting method
  • Insulating and refractory linings applied by gunning method
  • Insulating and refractory linings applied by pumping / shotcreting method
  • Ceramic fibers linings installation

C) Supervision at site, start up procedures and commissioning