Advanced production of continuous sandwich panel requires a complex set of systems, equipment and safety devices. For several years, our company, working alongside its customers, has developed technology that provides optimum production line efficiency with minimum waste. For the most uptodate foaming systems that use pentane, our systems are provided with special safety equipment and the necessary certification. Colzani G. e M. Impianti supplies a full range of systems serving the sandwich panel production line:

• - sheet metal preheating ovens
• - foaming containment booths
• - ATEX pentane vapour suction systems
• - double belt heating/cooling systems
• - soundproofing booths for panel cutting machines
• - cutting machine chip and dust suction systems

In industrial production processes, temperature control is vital to the success of chemical process reactions and the quality of the final product. Our company develops various types of temperature control systems.

• Forced convection ovens

  The forced convection heating systems result in significant heat exchange with uniform temperature distribution and no risk of product alteration. The ovens can be electrically powered with liquid or gaseous fuel, water, diathermic oil or steam.

• Radiant ovens

  Uniform infrared heating which can be precisely modulated has the advantage of very fast startup times and equally low thermal inertia if switched off or in an emergency. Radiant systems can be constructed using infrared radiant electric elements (low thermal power) or infrared catalytic panels (high thermal power) powered by natural gas.

• Industrial thermostatic booths

  For some production processes, temperature control is vital during product refinishing prior to final storage or for keeping the temperature of moving moulds constant. Colzani G. e M. Impianti manufactures controlled temperature containment booths with hot air blowing or radiant heating that have automatic rapid opening systems or air curtains to reduce energy waste.

• Laboratory thermostatic booths

  Our company designs and makes controlled and programmable temperature booths for industries that need to conduct material and laboratory tests.

By using cuttingedge technology, our company can build systems that reach a very high level of filtering efficiency with atmosphere controlled air inlet and accumulation filters and automatically regenerated “surface filters” for treating industrial emissions.

• Bag filter dedusting

  Bag filter dedusting guarantees that regulatory emission limits are complied with a high filter regeneration capacity which remains constant in the long term. Selecting suitable material depends on the dust to be treated and if other pollutants are present or not; to guarantee good operating of the dedusting unit, Colzani G. e M. Impianti helps its customers to select the most suitable type of system. The dust can be collected by being discharged into metal containers, big bags, containers or screw conveyors.

• Cartridge dedusting

  Cartridge dedusting takes place by filtering the emissions to be treated on filter elements that are more complex than bag filters and have a larger unit surface area. Regeneration using various types of cleaning system: with rotating nozzles or the increasingly widely used PULSE JET type that uses bursts of countercurrent compressed air with fullflow timed valves. Although it has the advantage of reducing dimensions and therefore the cost of the filtering units, the use of cartridges must be limited to dry, nonclogging dusts.

• Automatic winding rotary filters

  These are used for difficult applications, for example, filtering glue vapours or highly clogging dusts. The flat filter is wound from a reel that houses the filter media roller only when the filter matting is completely clogged and is controlled by a differential pressure gauge.

• Cyclones

  The removal of dusts passing over the cyclone is effective for a wide range of particle sizes. It is normally used as a first stage in purification and also guarantees that the filter lasts longer.

• Scrubbers

  Scrubbers are washing towers used to remove volatile compounds, especially acids and bases. The air flow to be treated is conveyed onto a filter media bed in plastic or ceramic material and comes into contact with the abatement solution (water or acidic/basic aqueous cleaning solutions) flowing in the opposite direction (but also in the same direction or in crossflow) which captures the pollutants.

• Activated carbon adsorption

  When the pollutant that has to be removed is a chemical in the air in the form of vapour, it can be removed through adsorption by passing over o bed of adsorbent material, normally activated carbon in granular or powder form. The carbons can be regenerated (granular carbon) or simply replaced (powder carbon).

• Electrostatic filters

  In electrostatic filters, the air to be treated crosses through a very high potential electric field which is created between the charging electrode and the collection electrode that have opposite charges. The ionised particles join the neutral particles in the mixture to be treated and are therefore attracted by a plate with an opposite sign charge. As soon as they come into contact with the plate, they lose their charge and can be easily removed by washing, vibration or simply gravity.

Our technicians have developed efficient solutions for satisfying a wide range of requirements and guaranteeing consistent longterm performance.

• Ventilation systems for electric battery recharging areas

  Ventilation of the recharging areas for forklift and equipment batteries must be carefully assessed to prevent pointless oversizing of the ventilation systems. Our company can assist you in the various stages of the project to find the best solution and receive the necessary fire prevention certification.

• Ventilation systems for smoking areas

  According to regulations, separate smoking areas must be provided as well as special ventilation systems. Our company can help you to design and build smoking areas guaranteeing highly innovative solutions for heat recovery, motion sensors and indoor air quality levels.

The air conditioning of industrial premises, needed to improve the production processes, requires a careful and detailed analysis of the environment and the use of advanced technology. Our team can offer solutions that cater for your needs.

• Radiant heating

  Radiant heating of industrial environments is the most economically viable solution to the problem of consumption linked to thermal stratification and the loss of warm air during the winter months through doors, windows and extraction systems. Radiant systems are safe and heat only when and where you want with the advantage that they immediately reach the required temperature. For environmental risk areas, our solutions come with the necessary ATEX certified components.

• Heat recovery systems

  Shell and tube, aluminium plate or rotating disc heat exchangers for heat recovery in civil and industrial environments.

• Hot air generators

  Liquid and gaseous fuel powered hot air generating systems for civil and industrial environments.

Acoustic impact must be correctly assessed when designing an air system. By determining the ideal type of system and soundproofing measures required on the production site and in the surrounding areas beforehand, you can avoid expensive work required to comply with noise level regulations at a later date. Our company manufactures systems for a number of applications.

• Soundproofing of equipment

  Protection for all noisegenerating machinery: presses, punching machines, compressors, etc.

• Soundproof booths for fans

  Soundproof booths for reducing the noise level of fans in the air handling systems.

• Silencers and sound barriers

  Circular silencers, with or without an internal pod, and rectangular ones with baffles to reduce the noise level of the air flow in the pipes. When the noise source cannot be isolated, careful design can help resolve the problem by using a sound barrier designed especially for the specific type of installation and the acoustic spectrum of the source.