L+M AG: Screw conveyors

Screw conveyors transport separated dust horizontally and at an angle. They are intended for continuous operation.

Surface coatings

Painted according to RAL
Hot-dip galvanized
Powder-coated

Executions

U-trough or tubular screws
Various sizes and lengths
Variable speeds
With one or more inlets and outlets

Materials

Welded sheet steel
Inox

Further accessories

Pendulum flaps

Dust discharge

Pendulum flaps are used for the discontinuous discharge of separated dust from filter systems into dust collection containers provided for this purpose.

Execution

Housing made of galvanized sheet steel
Weight driven
2 pendulum flaps connected in sequence enable discharge during operation (double pendulum flap)

Surface coating

Galvanized sheet metal
Painting according to RAL

Pipe systems

Planning and realization of complete pipe systems

The pipe systems from L+M for extraction systems are precisely designed to efficiently and reliably remove dust, gases and other pollutants. Thanks to high-quality materials and careful manufacturing, our pipe systems offer optimum performance and durability. Whether in industrial, commercial or other applications, our customized pipe systems help to create a healthy working environment and meet environmental standards. You can rely on the quality and expertise of L+M for your extraction systems.

Our engineering department plans and implements pipe systems, correctly designed for extraction systems.

Our materials warehouse guarantees short response times. High-vacuum and/or dust extraction lines, Flex, steel or plastic, incl. Flaps, valves, distributors, hose systems and fastening materials: the possibilities are almost limitless!

Our range of pipe systems

Complete range of spiral ducts and fittings. The range includes diameters from ø 80 mm to ø1000 mm. Larger diameters on request. Sealing system for spiral seam pipes and fittings. Factory-fitted double lip seal made of age-resistant EPDM rubber
Hoses made of coated fabric in all variants

Complete range of smooth, laser-welded pipes and fittings with clamping lock. Particularly suitable for extraction systems. Dimensions ø 80 mm to ø 500 mm
Tubular silencer with 50 mm or 100 mm sound insulation

Dust monitoring

Safe with dust monitoring

With many years of expertise in process and environmental measurement technology as well as in-depth knowledge of environmental legislation, we offer you solutions for your specific requirements. Our services include the planning, installation and support of measuring systems for monitoring air pollutants, both for operational requirements and within the framework of official regulations. You can rely on us to guarantee you optimum solutions tailored to your needs.

The devices developed in-house range from simple, compact filter monitors to in-situ dust concentration measuring devices and extractive measuring devices for particularly difficult dusts.

Their use includes the continuous – qualitative and quantitative – monitoring of dust emissions and odor emissions in various industries such as the cement industry, foundries, power plants, incineration plants, etc.

Process and analytical measurement technology

Dust concentration measuring devices
Filter monitor
Continuous odor measurement technology
Gas analyzers
Volumetric flow meters
Electronic noses

Fans

They don’t mind a rough working environment

We offer a wide range of fans for use with extraction systems. They meet your highest demands, even under tough operating conditions. In addition, correct design and short delivery times are standard for us.

Our fans are produced by renowned specialists and have outstanding features.

The fans are typically used to convey dirty, greasy, hot (up to + 100° C) and humid air against high resistance in industrial and commercial applications.

Your added value with our fans

Noise-encapsulated high-performance fans
Easy cleaning and maintenance
Speed control possible
High overall efficiency, low power consumption
Cost-effective power control

Our product range

High-pressure and medium-pressure fans
Side channel compaction
Positive displacement blower

Valves

The right valve for every dust extraction system

We offer you diaphragm valves in several versions that are suitable for different dedusting systems.

These high-quality valves regulate the cleaning pulses with high precision and therefore provide optimum filter cleaning.

Your added value with our valves

High quality
Reliability
Simple installation
Low maintenance effort

Pre-separator systems

Spark extinguishing system to prevent filter fires

With certain dusts from cellulose and metal processing, there is a constant risk of filter fire. If the sensor of this high-performance separator detects sparks being sucked in, the air supply is immediately interrupted to prevent the spark from reaching the inside of the dust extraction system.

The spark extinguishing system consists of coordinated components: Spark detector, evaluation electronics, actual separator. The high-performance separator with its collection container can be installed at any point in the pneumatic transport channel. In the event of an alarm, the control system takes all measures to raise the alarm and switch off machines and fans in stages. The smallest sparks are detected and extinguished using highly sensitive infrared sensors.