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FOEHN Push-Pull Pulse Jet Cartridge Dust Collector for Internal Factory Cleaning

Performance: 3000 — 18000 cfm (5100 — 30600 m³/h)
Dust cleaning efficiency of 99.9% depending on the dust load and temperature: All characteristics
Price: varies depending on the package
5-Year guarantee
Easy installation and operation
Over 10 years of service life
Ecologist-approved
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The cleaning efficiency rate for dust at least 0,5 micrometers in size is 99,99%. Efficiency depends on the type of dust, temperature, and moisture.
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Cartridge Dust Collector Description

FOEHN Push-Pull dust collector is developed for internal operation in a factory. The key different and advantage of these filters is that they do not eject air outside. This saves a considerable amount on heating during the cold season. It is particularly efficient for cleaning air of welding clouds and sprays while plasma metal cutting is taking place in the facility.

Economical Cartridges With Automatic Cleaning

Reliable, cylindrical cartridges
They provide a longer filter lifetime as well as a higher filtration efficiency and, consequently, operational savings for you!
Larger filtration material area
The folded filtration material structure is very compactly designed and a single such cartridge has a filtration surface of 15-20 bags!
The most common type of cartridge
Thanks to the great popularity of cylindrical cartridges, you can quickly find the one that suits you and replace it with ease.
Savings on heating during the cold season
On account of the warm air returned back into the facility after air cleaning is done.
Significant reduction in harmful exhaust within the factory
Does not allow welding smoke to accumulate Reduces the concentration of harmful substances in an operation area and in the general volume of a production facility.

The Push-Pull Innovation System

It is developed customized for your enterprise
We take into account the parameters of the technological welding processes, the positioning of equipment and welded wares, in addition to the facility's construction parameters.

Modular Design is Our Main Area of Expertise

Increase efficiency by way of adding an additional filter module.
The large-node, bolt-mounted assembly takes place based on instructions, as in the case of furniture assembly, with no welding or complex manipulations.
Thanks to the modular design, delivery of the filter requires no special transportation and takes less time to perform.
Fast efficiency enhancement
Quick and easy installation
Simple, quick transportation

Improved Construction According to the Client’s Individual Tasks

Powerful and efficient fans
Selection of the best performing fan from the perspective of efficiency, pressure, and energy consumption.
Under pressure or discharge
The filter works both under pressure and under negative air pressure from the fan.
Simple maintenance
The filter's design is made in such a way that servicing takes up a minimum of time. It features the ability to install service hatches and doors.
Compact
Takes up minimal space and is made ready for quick operation
Properly designed and tested at various production sites
Proper air passage speed through the cartridges allows for air to be excellently filtered and the cartridges to clean themselves as well. That renders the cartridge collector economical and reliable.
Optional alternate design
Based on the client's wishes, the design and size can optionally be changed, and performance can also be augmented. We have a large selection of additional package elements.

Fundamental Differences From the Other Models

-1-
Features built-in fan.
-2-
Equipped with a Push-Pull system to return clean air back into the factory.

Areas of Use

The dust collector is suitable for most areas of industry and enterprises.
  • Welding
  • Cleaning and metal polishing
  • Various forms of metal cutting, mechanical, plasma, and laser cutting
  • Bead-blasting and sand-blasting processing
  • Granular materials operations
  • Plastics and composite materials processing

How It Works

To remove harmful mixtures, dusts, welding sprays, and clouds, a filtration and ventilation system is developed which entails two air pipes stationed at opposite walls of the facility at the height where the contaminated air forms.

From one gas pipe, the filter machine induces contaminated air and cleans it using a cartridge filter while it feeds the cleaned air back into the factory via the other gas pipe.

The contaminated air enters into the FOEHN Push-Pull via an air pipe or gas pipe into the dirty chamber. After that, the dust particles settle on a channeled cartridge while the clean air passes through the round cartridge and enters into the clean chamber. The cleaned air exists the filter with the help of a fan outside or goes back into the facility.

Specification

The specifications depend on the package elements. For each client, we create a project based on a detailed survey about the production site and the nature of the dust.
The dust collector can optionally be designed as unconventional, depending on the client's technical task.
Thanks to the technical advancements we’ve completed, we've managed to raise the carrying capacity and extended the filter's service life.

Package

Basic package per module

According to the technical task of the client, there may also be more modules.
Coated steel frame
1
Receivers for compressed air
Package
Diaphragm valves for cartridge cleaning
Package
Filter cartridges
Package
Box under dust
1
Emergency hopper indicator level
1
Control panel
Package
Fan
1
Muffler
1
Air collecting ducts
1 (quantity depends on client's needs)
Air distribution ducts
1 (quantity depends on client's needs)
User manual, operation instructions, and installation instructions
Package
Certificates and patents
Package

Additional package

We always accommodate the client and are willing to add all necessary functions, as well as other characteristics and parameters to the standard package elements.
FIRE EXTINGUISHING AND SAFETY
  • The explosion-safe design entails an installation made of explosion-relieving membranes (an excess pressure membrane), the use of filter elements with anti-static fibers and threats, additional grounding systems, 64 IP electricity, etc.
  • Fire extinguishing system
  • Explosion relieving membrane on the filter frame
  • Dust pneumatic discharge or vibration discharge system for the hopper
  • Chemical-resistant coating
MAINTENANCE
  • Floors and stairs for filter maintenance
HEATING AND THERMAL INSULATION
  • Hopper insulation (conical dust collector)
  • Filter frame insulation
  • Insulation and heating regeneration system
  • Hopper heating (conical dust collector).
  • Heating of the filter, individual parts of it, and heat entry toward the valves.
MANAGEMENT AND CONTROL
  • Smooth launch device (frequency transformer) for the fan, worm, and gate
  • The special control board is built based on a relay with a management module, connection, and controls. The control board, tailored to your assignment, provides: data collection from the dust, pressure variation, and equipment condition transmitters (fan, worm, feeder)
  • Operation condition, emergency, and technological blockage alarm systems
  • Emergency stop
  • Device deactivation from the fire alarm signal
  • Differential manometer variation between the “clean” and “dirty” areas
DESIGN AND FILTER
  • The filter frame can be designed to have different types of steel.
  • Oil and moisture separator
  • Fan of different types: high pressure, medium, dust, corrosion resistant, and others
  • Different types of valves: reverse, flame, and overflow
DUST COLLECTION HOPPER
  • Screw conveyor
  • Dust discharge box under the hopper
  • Gate for discharging the hopper.
PERFORATED DUST CASSETTE
A perforated dust cassette can be installed in front of the filters so that the dust settles right down into the bunker and reduces the wear on the cartridges. More even distribution of gas flow along all the cartridges increases their service life and helps save on operational costs.

Modifications, Dimensions, and Drawings

A modification is a filter variation with a different quantity of modules. Adding modules entails a change in general performance, filtered air volume, size, and other specifications. FOEHN Push-Pull cartridge dust collector consists of one or multiple modules.

The recommended performance of a single module is no more than 18000 cfm and in order to increase the performance of the cartridge dust collector, it is required to install an additional module (see example in drawing below).

A collector can optionally be designed with non-typical size depending on the client’s technical task

Filter Cartridges

We use a channeled cartridge as the filtering element. Thanks to the folded structure, the filter material is placed very compactly. For instance, a single standard cartridge of Ø12.8 in, 39 in tall has a filtering surface area of 178 ft² and replaces 15 - 20 bags.

The filter material entails a very thin (about 0.02 in), solid material with small pores. It is rated within the F7-F9 classes in terms of Eurovent’s cleaning quality standards, outperforming in this component materials usually used in cartridge filters.

The gas goes from outside the cartridge and enters and the dust particles settle on the outside part of the filter while the clean air passes inside the cartridge and leaves the filter outside.
The filter element becomes dirty every now and then and is cleaned by air impact. The concentrated impulse from the air valves shakes the cartridge filter material and the dust settles inside the hopper. Cartridge cleaning is performed without any halt in the filtration cycle.

The filter cartridges withstand a dust load of up to 2 ppm. A Cyclone will have to be placed in front of the equipment if the load is to get any more than that.

The Push-Pull System

Ensures air cleaning within the factory both at individual operation stations and throughout the factory, returning cleaned air back into the facility.

The Push-Pull system captures air, filters it, and returns it cleaned back into the factory.

The system configuration and package with different types of performance depends on the required air consumption and the particularities of the operation facility. Automatic control is implemented using a special panel.

In order to enhance air cleaning, install an additional special Coal type filter for gas elements after the cartridge filter is installed.

The performance of the filter, the length of the air ducts, the quantity of grids, and the consumption of air passing through them are calculated by Fakel's engineers based on the volume of the facility, the distance between the walls, the form of welding, the type and consumption of the welding electrodes, the brand of welded metals, and an array of other parameters.

Contaminated Air Induction: the Damper Plate

Our dust collector design helps our clients money by not having to replace the bags as often. Installed in front of the filters is a dust chamber so that the dust settles right down into the hopper and this reduces the wear on the cartridges.


The damper plate helps achieve a more even distribution of gas flow along all the filter cartridges, which extends the filters’ service life and improves air cleaning, since the load is even and allows for operational costs savings.

Dust Hopper and Discharge

In its standard package, FOEHN Push-Pull has a conical accumulator hopper for dust and a round gate with a manual gear for opening and closing or a box on wheels.

Additional hopper package elements
  • A shaker or a vibration device to prevent dust from sticking to the walls of the hopper.
  • Level transmitter.
  • Hoppers and supports according to the demands of your production site. For instance, for our client, we tailored the hopper for big bag discharge at their wood processing enterprise.
  • Worm hopper for continuous dumping of dust out of the hopper with a gate. Thus, the filter won't have to be halted in order to unload accumulated dust.

Captured Product Discharge

Discharging organization methods for the client to choose from:

  • The basic package features use of the manual method, which is done using a manual hatch which when opened manually and the dust unloads out of the dust aggregator into some volume or, when dust falls into a connected volume (box) without a hatch.The automated method: a flood gate or a double flap is used for unloading, often together with a worm transporter.
  • The automated method uses a gate or double dump for discharge, often along with a worm transporter.
The main distinction is manual labor which must be exerted to unload the captured product. The automated method can be combined with a production line and, for instance, the product can be returned back onto a conveyor belt.
A hand dust latch
Automatic “flood gate” (feed)
Mechanical “double flap”
A hand dust latch
Automatic “flood gate” (feed)
Mechanical “double flap”

Cartridge Dust Collector Management

Smart control automation ensures uninterrupted operation.

Filter control is performed using a controller or a remote control. This system works in a closed cycle, but it can be reconfigured depending on the client's needs.
We propose packaging the filter with a completely automatic control system, analysis, fire extinguishing, etc. In the standard package, a temporary controller is installed and it can also be packaged with a Siemens controller depending on your needs.

Pulse Jet System

The filter cartridges end up covered in “sticky” dirt every now and then, which increases the filters’ resistance. In order that the system works without interruption and without any variations in pressure, cartridges must be cleaned. The cleaning is done in the following way:
  1. At the top, there are air pipes in the clean air chamber which follow from the air cleaning diaphragm valves. These valves are installed on the receivers where the compressed air is located which is used for air impact.
  2. The air in these receivers is fed from the compressor. Every now and then, the valve begins operating, the air is fed into the tube through the valve, and then out of the tube it is distributed inside the filter cartridge with the help of nozzles.
  3. The filtered cartridge is shaken and blasted. Then the dust falls down into the accumulator hopper.
  4. The dust can be extracted from the accumulator hopper in three ways, depending on the technical task declared: a manual dust latch, a mechanical double dump, and an automatic gate. The standard version comes with a manual dust latch.

Pulse Jet Cleaning System Package:

Innovative development: air pipes system with a cleaning enhancer

They are either metallic or plastic. It all depends on the gas and temperature that the filter is cleaning. Nozzles are installed on the air pipes for more efficient cleaning of the filter element. A special cleaning enhancer is installed above the cartridge, which helps improve filter shaking and extends its service life.

Compressed air receiver
It is the receiver that accumulates air for air cleaning. If there isn't enough air, the degree of cleaning will fall, the wear on the filters will increase, and the filter's performance will fall, since the filter’s aerodynamic resistance increases. There is a connector on the receiver to the compressor or to the general factory compressed air pathway as well as moisture drain valve.
Air valves
All valves are certified. Our valves are specialized for filter equipment air cleaning systems.

Controller
Regeneration system control is performed with the help of a special controller that configures the quantity of impulses and the frequency of the impulses.

Differential manometer (by order)
With a manometer, cleaning of the filter not only varies in time but also in terms of how “stuffed” the cartridge gets. When the pressure falls in the filter chamber, the manometer submits a signal to the controller to initiate blowing.

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Get a Consultation From One of Our Factory's Experts

Michael
Klepik
Chief Executive Officer
Consults and provides calculations
Vladimir
Nikulin
Chief Technology Officer
Head of development and design
+1 (918) 406-5684
info@torch-air.com
+1 (918) 406-5684
info@torch-air.com
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