/ Equipment service
Aspiration and gas cleaning
We restore design cleaning efficiency and reconstruct the gas path without stopping main production.
- 016 unit types
- 02Site visits: KZ & CIS
- 0312-mo warranty
/ Equipment
Types of units we work with
Bag filters
Diagnostics of filter elements, regeneration system, housing, hopper, valves and differential pressure.
Cyclones
Inspection of the housing, lining, inlet and outlet elements, tightness and wear.
Scrubbers
Diagnostics of the hydraulic and gas sections, nozzles, pumps and internals.
Exhaust fans and fans
Diagnostics of the impeller, shaft, bearings, drive, vibration and capacity.
Gas ducts
Checking wear, air leaks, tightness, expansion joints and the condition of supports.
Aspiration hoods
Checking dust source containment and extraction adequacy.
/ Technical audit
We find where the system loses its design duty
The main task is not to start replacing the filter right away, but first to understand where the system loses its design duty.
PROCESS LINE
Dust source
12,000 m³/h
Aspiration hood
−180 Pa
Gas duct
18 m/s
Bag filter
ΔP 1650 Pa
Fan
37 kW
Emission
XX mg/Nm³
What we check
Flow
- total flow
- flow per branch
- gas velocity in the ducts
Pressure
- vacuum
- static pressure
- differential pressure
- resistance of individual elements
Dust
- inlet concentration
- outlet concentration — if measurements are available
- dust properties
- particle size
- moisture
- tendency to stick
Temperature
- gas temperature
- temperature peaks
- condensation risk
Mechanical condition
- gas ducts
- flanges
- expansion joints
- supports
- filter housing
- hoppers
/ Audit result
After the inspection the customer receives
- 01
List of identified defects
- 02
Technical condition assessment
- 03
List of units requiring repair or replacement
- 04
Upgrade recommendations
- 05
Preliminary spare parts list
- 06
Proposed scope of work
- 07
Technical proposal
/ Repair
Partial repair and overhaul
Partial repair
Diagnostics and restoration of bag filters, cyclones, scrubbers and auxiliary aspiration system equipment.
- cyclone repair
- scrubber and nozzle repair
- exhaust fan and fan repair
- gas duct and expansion joint repair
- aspiration hood restoration
- hopper repair
- compressed air system repair
- electrical system restoration
Overhaul
An overhaul involves in-depth fault detection with restoration or replacement of worn main units.
- 01
Disassembly and fault detection
Determining the actual condition of parts and units.
- 02
Restoration
Machining, repair or manufacture of parts.
- 03
Replacement
Installation of new components where restoration is technically or economically unjustified.
- 04
Assembly and adjustment
Restoring geometry, adjusting mechanisms and drives.
- 05
Testing
Testing of equipment systems.
- 06
Commissioning
Installation supervision and commissioning, depending on the scope of work.
Bag filter repair
The bag filter is the key and most frequently serviced element of a gas cleaning system.
We diagnose
- filter bags
- cages
- tube sheet
- seals
- pulse valves
- air receiver
- compressed air system
- hopper
- rotary airlock
- housing
Possible work
- Bag replacement
- Cage replacement
- Tube sheet repair
- Pulse valve replacement
- Housing repair
- Hopper repair
- Restoring tightness
- Regeneration tuning
The scope of repair is determined after defect inspection of the filter elements and the regeneration system.
/ Upgrade
Improving the efficiency of existing equipment
If the filter housing and main equipment still have service life left, upgrading the regeneration and control system may be more rational than full replacement.
Bag filters
Renewal of filter elements and the regeneration system.
Exhaust fans and fans
Impeller replacement, balancing, drive renewal.
Gas ducts
Replacement of worn sections, installation of expansion joints.
Aspiration hoods
Changing how the dust source is contained.
Automation
Monitoring of differential pressure, flow and temperature.
Safety
Interlocks and emergency protection.
Important: the effect of an upgrade on emissions and energy consumption is determined by analysing the system's actual parameters — specific figures are given only based on project calculations.
/ Automation
Aspiration system monitoring automation
A control system upgrade lets you monitor system parameters in real time and detect deviations from the design duty before faults accumulate.
Monitored parameters
- Flow monitoring
- Pressure monitoring
- Differential pressure monitoring
- Temperature monitoring
- Alarms
Automation equipment
- PLC
- HMI
- pressure sensors
- flow sensors
- temperature sensors
- frequency converters
- control cabinet
Integration with the plant DCS
- Modbus RTU
- Modbus TCP
- PROFINET
- Ethernet/IP
/ Installation supervision
Installation supervision
Technical supervision of equipment installation by specialists, checking correct assembly, installation and connection of main units.
- site readiness check
- installation control
- equipment position control
- connection check
- drive installation control
- piping connection control
- recommendations to the installation contractor
- preparing equipment for commissioning
/ START-UP
Commissioning
- 01
Installation check
- 02
Electrics and instrumentation check
- 03
Drive check
- 04
Idle run
- 05
Algorithm tuning
- 06
Start-up under load
- 07
Parameter adjustment
- 08
Handover of equipment to the customer
If provided for in the contract, training of the customer's staff.
/ Spare parts
Spare parts and consumables
- Filter bags
- Cages
- Pulse valves
- Receivers
- Scrubber nozzles
- Fan impellers
- Bearing units
- Gas ducts and expansion joints
- Pressure and flow sensors
- Control cabinet components
/ What to choose
Repair, upgrade or replacement?
Repair
When the equipment's original performance needs to be restored.
Goal: return the equipment to working order
Upgrade
When existing equipment is working or repairable, but its throughput, automation or operating characteristics need to change.
Goal: improve the existing system
Replacement
When remaining service life, structural condition or restoration cost make further repair economically unjustified.
Goal: replace the equipment with a new solution
/ How we work
How we handle a request
- 01
Request
We receive the problem description and documentation.
- 02
Analysis
We study the equipment and input data.
- 03
Audit
If needed, we inspect the equipment.
- 04
Solution
We define the scope of repair or upgrade.
- 05
Work
We carry out the agreed set of work.
- 06
START-UP
We test and adjust the equipment.
- 07
Operation
We hand over recommendations and the required documentation.
We work with equipment from other manufacturers
We carry out technical audits, repairs and selection of compatible components for aspiration and gas cleaning equipment from various manufacturers once the model and technical parameters are identified.
Completed projects
Examples of completed inspection, repair and upgrade work are in the Projects section.
View projects/ Not sure where to start?
Send the equipment data and we will define the scope of work
The equipment passport, problem description, photos and technical parameters help engineers prepare a preliminary technical assessment.