Abstract: An apparatus for frothing milk includes: a container for milk to be frothed; a steam source; a steam ejector device including a first inlet line in fluid communication with the container and a second inlet line in fluid communication with the steam source, the steam ejector device injecting steam into the milk to obtain a milk and steam mixture, the steam ejector device including an outlet line for the milk and steam mixture; an air intake in fluid communication with the outlet line of the steam ejector device; and a pump located downstream of the steam ejector device for drawing the mixture of milk and steam and air coming from the outlet line of the steam ejector device, the pump forming a froth of the mixture of milk and steam delivering the froth along a delivery line.

Abstract: A deodorization method and apparatus are disclosed to eliminate, reduce or correct the odour of incoherent plastics, i.e. in the form of granules and/or microgranules and/or powder and/or flakes or the like, with a container of the incoherent plastics, an actuator for generating a process gas flow from a gas inlet to a gas outlet of said container, an olfactory sensor arranged to detect odorous emissions in the process gas exiting from said container, a controller configured to control at least one parameter of the process gas on the basis of an odour intensity measured by said olfactory sensor, with the aim of eliminating the substances that cause undesired odours from the incoherent plastics that is usable in a transformation process to make an end product.

Abstract: A method and an apparatus are disclosed for analyzing an absorption filtering medium that filters volatile organic substances in a process gas in a dehumidification plant for dehumidifying polymer granules, with a fan that generates a flow of gas through the filtering medium, an analyzer for analyzing the concentration of total organic carbon, a sensor for detecting pressure downstream of the filtering medium, in which the state of saturation and/or the absorbent capacity and/or the deterioration over time of the filtering medium is determined by a comparison of the measured concentrations of the total organic carbon in the flow of gas upstream and downstream of the filtering medium.

Abstract: An analysis method and apparatus for treating polymer granules at least part of which comes from post-consumer recycling, in which a flow of a process gas is purified from contaminating vapours by traversing, in sequence, first a dust collector filter that retains the solid particles contained in the gas, then a first side of a gas/gas heat exchanger in which the process gas surrenders heat, then a condenser in which the process gas is cooled to below the boiling point of the contaminating vapours to form condensate, then a second side of the exchanger in which the process gas recovers a part of the previously transferred heat, to then enter a container where the polymer granules are treated.

Abstract: An analysis method and apparatus are disclosed for analysing an absorption filtering medium that filters volatile organic substances in a process gas in a plant for dehumidifying polymer granules, with a fan that generates a flow of gas through the S filtering medium, an analyzer of the total concentration of the organic carbon, a sensor to detect the pressure downstream of the filtering medium, in which the saturation state and/or the absorbent capacity and/or the deterioration over time of the filtering medium is determined by a comparison of the measured concentrations of total organic carbon in the flow of gas upstream and downstream of the filtering medium.

Abstract: A method and an apparatus are disclosed for processing plastics, in which the material in incoherent solid state is dehumidified in a hopper and is then melted in an extruder, after which the molten material is used in a moulding device for moulding by injection and/or by blow moulding and/or compression, and in which a set point pressure value of the molten material is set on the basis of a measured residual humidity value of the dehumidified incoherent solid material, so as to decrease the pressure value by a preset variation value if the measured residual humidity value is lower than a reference value and to increase the pressure value by a preset variation value if the measured residual humidity value is higher than said reference value.

Abstract: An espresso coffee machine including a main boiler, a dispensing group, a secondary boiler, a main water inlet circuit, hydraulically connected to the main boiler and to each secondary boiler and an electronic control unit, where the main water inlet circuit has a booster pump, the machine further includes a pressure sensor, a bypass circuit hydraulically, and a two-way proportional valve configured to recirculate a part of delivery flow of the booster pump on the main water inlet circuit and upstream of the booster pump, in order to maintain a certain coffee extraction pressure value in each dispensing group set in real time by the pressure sensor.

Abstract: An espresso coffee machine comprising a main boiler, a dispensing group, a secondary boiler provided, a main water inlet circuit, where the main water inlet circuit has a pump that applies a predetermined pressure value to the water, the machine further including a dispensing valve, an air inlet circuit hydraulically connected to the brewing chamber of each dispensing group, a compressor to inject air at a predefined pressure value in the brewing chamber of each dispensing group and at least one heating element arranged to inject air at a predetermined temperature value into the brewing chamber of each dispensing group.

Abstract: An espresso coffee machine including a main boiler, a dispensing group, a secondary boiler, a main water inlet circuit, hydraulically connected to the main boiler and to each secondary boiler and an electronic control unit, where the main water inlet circuit has a booster pump, the machine further includes a pressure sensor, a bypass circuit hydraulically, and a two-way proportional valve configured to recirculate a part of delivery flow of the booster pump on the main water inlet circuit and upstream of the booster pump, in order to maintain a certain coffee extraction pressure value in each dispensing group set in real time by the pressure sensor.