The Patented worm gear design driving system combines a very smooth, pulsation-free continuous movement with an energyconscious consumption.
Group has been awarded the project, that included a stringent set of technical specifications. The scope of the supply includes the whole wet side, including: complete storage farm( made by Cannon Bono Sistemi), high-pressure multi-component dosing unit( by Cannon Afros), pouring and polymerisation section( by Cannon Ergos) and the supervision system( by Cannon Automata). A East European manufacturer of insulating panels for the building industry has recently ordered to Cannon Ergos a continuous foaming plant for flexible faced panel. A very customer-oriented plant configuration has been developed to match the client ' s expectations. A European manufacturer of insulation panels made with Phenolic foams has commissioned to Cannon Ergos the construction of a new line, including a tailor-made multi-component dosing unit and the longest double belt conveyor ever made so far by Cannon. A very special new plant is on the drawing board at Cannon Ergos plant in Caronno Pertusella, north of Milano, Italy. Its most relevant feature is the width of the double-belt conveyor: 2,400 mm! Featuring three fixed mixing heads – fitted with the new Pug Beak distribution devices for optimum lay down of the formulation on such a large section – the plant is able to double the productivity of a foaming plant.
Special Solutions for Special Needs The new generation of continuous foaming plants for flexible-faced insulation panels made by Cannon Ergos provides an industrially tested response to a rising need for special types of insulation media. Things are evolving fast in this dynamic sector and Cannon is ahead with innovative and profitable solutions: discuss with the nearest Cannon Local Office the specific needs demanded by your next panel project. A viable solution might be already waiting for you!
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A New Head: JL Vector – Better Laminar Flow at Higher Output!
DESIGNED FOR HIGH-OUTPUT APPLICATIONS REQUIRING A VERY LAMINAR FLOW, THE NEW JL VECTOR IS THE EVOLUTION OF THE CANNON JL HEAD. A DOUBLE MIXING CHAMBER PROVIDES OPTIMUM MIXING EFFICIENCY AND SMOOTH FLOW OF THE BLENDED FORMULATION IN REFRIGERATOR AND PANEL MOULDS.
The never ending search for higher efficiency rigid foams for thermal insulation relies on a new generation of highly reactive formulations requiring a very fast injection. The consequence is that higher output values are demanded to the mixing heads, to deliver the right quantity of blended chemicals before the foaming reaction starts in the mould. These high-output heads generally bring along an increase of turbulence, which hinders the creation of a regular, bubble- and void-free foam. To respond to this increasing demand Cannon Afros mixing head specialists have designed the JL Vector. Built upon the experience matured since 2007, when the innovative injectors-free JL head was launched, the JL Vector presents a simplification of the hydraulic controls and a significant improvement of the mixing efficiency at high output values.
Special Geometry for Special Formulations The mixing head geometry of the JL Vector is based on three separate mixing chambers of different diameters. A premixing step is carried in the first chamber, where two( or more) liquid components are fed through injectors, even at a moderate pressure( down to 70 bar). The impinged turbulent blend is transferred to a second mixing chamber, whose section is 3-4 times smaller than the first. Its design forces the blend through a long annular gate where it acquires speed, optimising the mixing and losing turbulence. At the end of this second mixing chamber a forced 90 ° turn brings the blend in a discharge duct that is 10 times wider: here the flow of the reacting formulation loses kinetic energy and turbulence; through a very long injection duct it is transferred into the mould( open or closed) with a very laminar flow, free from splashes, air entrapments or voids. Using the currently available head( called 15-8- 26 from the diameter in mm of the three chambers) an injection with laminar characteristics up to 2,700 g / s can be obtained. As a comparison, a standard JL head of similar size provides laminar flow up to 2,200 g / s output.
Several advantages characterise the new JL Vector versus the JL or other models of high pressure mixing heads:
· Its design allows for direct calibration of the flows through the injectors, to manually confirm the output values indicated by the machine electronic control through the flow transducers.
· The hydraulic controls of the three mixing chambers are separated, to simplify normal operations and maintenance.
· A lubrication circuit has been provided on the largest piston, to easily get rid of the scrap foam which builds up on its shaft after a number of injections. Maintenance is simplified.
· The peculiar three-chambers geometry makes this head very suitable for extremely viscous Polyols: positive tests have been run with chemicals featuring 20,000 cps viscosity, measured after blending in a generous percentage of CycloPentane. These Polyols, in their pure state, can have a viscosity of 35- 40,000 cps.
The performances of the JL Vector, fully tested in heavy-duty industrial environment for more than 18 months, allow Cannon Afros to envisage a specific target market of:
· Producers of large sandwich panels for insulation, made with the discontinuous foaming method with formulations requiring output values up to 3 kg / s and based on very viscous Polyols, such as aromatic polyesters and similar chemicals.
· Producers of large refrigerators for domestic and commercial applications, using fast-reacting formulations designed for a targeted 100- second demould time.
· Producers of special, microcellular rigid foams obtained with very viscous Polyols.
Available for the time being in one size, the head is currently being designed in a range of sizes more adapt to other industrial applications. Interested? Contact the nearest Cannon Office!
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