Industrial Dedusting Systems

Dust Extraction Systems – Dust Collectors

We execute dust extraction systems for different industries (e.g. power engineering, metallurgy, founding, as well as chemical, food, and woodworking industries). Depending on the customer’s requirements, we implement projects in the “turnkey” system (all project stages from the design through production and assembly of system elements, star-up and service) or in the scope indicated by the investor (e.g. design of a dust extraction system plus production of an extraction unit).

​Our potential allows us to make systems with capacity of 1.5 million cubic metres of extracted air per hour. We specialise in projects requiring specialist knowledge on explosion safety (extraction of flammable and explosive dusts, gases and liquid vapours, as well as hybrid mixtures).

Scope of works performed – dust extraction systems

  • preparing concepts and designs for all industries
  • manufacturing dust extraction units and key elements of the system
  • developing and implementing control system
  • assembly, start-up and service of dust extraction systems
  • developing concepts and implementing safeguards limiting the risk and effect of an explosion
  • working out an explosion risk assessment and/or an explosion protection document

Note

The Company’s own design office and manufacturing plant allow us to construe complex systems that require specialist building, electrical and constructional knowledge as well as that on explosion safety.

We design systems while basing on filters manufactured by us, which on one hand allows us to assure the highest quality and, on the other hand, to provide price competitive solutions. Only in justified cases or at the investor’s request (unification of filtration units on a given plant), we use filtration units provided by outer companies.

Developing concepts for dust extraction systems, executing construction designs, executing working designs for respective works, executing filtration unit designs.

Production of filtration units (bag, cartridge, pocket, cassette filters), cyclones and cyclone batteries, sludge chambers, pipework elements, steel containers, steel structures (supporting structures, platforms, barriers, stairs), loading/unloading stations, big-bags, cell valves, feeding screws and belt conveyors.

Control systems are effected by means of programmable logic controllers which make it possible to adjust flexibly system operating conditions to the customer’s requirements and the process.

Exemplary dust extraction plant control systems:

  • dust extraction systems are operated as self-contained units not related to other systems
  • dust extraction systems work in tandem with supervisory control systems
  • dust extraction systems function as supervisory systems for dedusted plants

Control systems may be equipped alphanumeric displays for displaying operating data and with timers for selected devices. Remote control ON/OFF boxes with starting readiness signalization and operation signalization are applied for facilities with dispersed service lines.​

The control system controls at the same time system operating conditions and protects the system against being operated with admissible parameters overrun.Overrun of admissible parameters may be signalled to operators and in the absence of any reaction, the system will switched off automatically.

Dust extraction systems are controlled by means of programmable logical controllers that make it possible to adjust flexibly system operating conditions to process requirements.

Exemplary dust extraction plant control systems:

  • dust extraction systems are operated as self-contained units not related to other systems
  • dust extraction systems work in tandem with supervisory control systems
  • dust extraction systems function as supervisory systems for dedusted plants

Control systems may be equipped alphanumeric displays for displaying operating data and with timers for selected devices. Remote control ON/OFF boxes with starting readiness signalization and operation signalization are applied for facilities with dispersed service lines.

The control system controls at the same time system operating conditions and protects the system against being operated with admissible parameters overrun.Overrun of admissible parameters may be signalled to operators and in the absence of any reaction, the system will switched off automatically.

Due to our considerable experience in explosion safety solutions, we place special emphasis on systems for extracting flammable and explosive dusts, gases, liquid vapours and hybrid mixtures. In such cases, we apply both the preventive solutions that limit the risk of explosion as well as explosion-proof systems required by law (explosion damping, explosion relief, explosion decoupling).

Note

When dust extraction process is related to flammable and explosive dusts, gases, liquid vapours, or hybrid mixtures, there is a serious risk of occurrence of an uncontrolled explosion. This phenomenon may lead to destruction of the dedusting unit, as well as of the whole plant (most frequently, it is caused by propagation of the explosion wave to the remaining part of the system, a secondary explosion or a fire resulting from the explosion). According to statistics, filtration units and cyclones belong to the group of equipment seriously threatened with explosions (acc. to BIA Statistics – Reports 11/97, filters and cyclones are the second group of equipment most seriously threatened with explosions after silos and containers, and in case of metallic dusts, as much as 44% of all explosions in industry occur in dust extraction systems).

Similarly to the works on design and execution of dust extraction systems, also aspects related to the system safety may be executed in the “turnkey” system or selectively, depending on the investor’s needs.

Below is the scope of our works:

  • explosion safety audits
  • developing concepts of protection of dust extraction systems against explosions
  • implementing preventive measures and explosion safeguards
  • working out an explosion risk assessment and/or an explosion protection documents
Flammable and explosive dusts in industry

Coal dust filter protected against explosion effects by an explosion dumping system (HRD cylinder) and an explosion decoupling system (HRD cylinder) as delivered to a power plant belonging to Polski Koncern Energetyczny (Polish Energy Concern). The “turnkey” delivery included designs for all works, manufacturing the dedusting unit and pipelines, connecting the dust extraction system to the power plant Distributed Control System, preparing an as-built explosion risk assessment.

Dedusting unit designed and delivered in the “turnkey” system to the Stalprodukt company’s production plant. The system has been adjusted to explosion safety requirements (ATEX directives). The filtration unit has been protected against dust explosion effects by flameless explosion venting (Q-BOX) and explosion decoupling (non-return damper).

Dedusting unit

3d design of a dedusting unit protected against explosion effects by a relief system (decompression panel) and explosion decoupling (HRD bottle, not shown in the figure). The above filter is a core of the dust extraction system delivered “turnkey” to the Saint-Gobain company’s production plant.

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