Abstract: Melamine-formaldehyde foam with improved weather resistance comprising 0.1 to 8 wt.-% of at least one UV stabilizer, such as benzotriazole derivatives and piperidinol derivatives and further 1 to 3 wt.-% of at least one hydrophobicization agent, such as organo-modified siloxanes and silanes and processes for producing such melamine-formaldehyde foams with improved weather resistance.

Abstract: A method is provided for reclaiming an evaporated liquid from an air stream including transferring the evaporated liquid from a first quantity of air into a second quantity of air, wherein the second quantity of air is smaller than the first quantity of air. A device for performing the method is also provided.

Abstract: A method is provided for reclaiming an evaporated liquid from an air stream including transferring the evaporated liquid from a first quantity of air into a second quantity of air, wherein the second quantity of air is smaller than the first quantity of air. A device for performing the method is also provided.

Abstract: The invention relates to a device and a method for pre-cooling brewing liquor using a refrigeration device, the said refrigeration device being designed as an absorption-type refrigeration device, and preferably as a LiBr absorption-type refrigeration device, with an evaporator, an absorber, a generator and a condenser, and the generator being operated with surplus process heat produced in the brewery. Use is preferably made of the water vapour heat which is recovered in the copper vapour condenser and which can be subjected to intermediate storage in an energy reservoir.

Abstract: To knife-coat elastic liquids without the presence of flow instability, the extension rate in the upstream region of the coating bead is kept low by increasing the distance over which the liquid must accelerate. The onset of the flow instability is delayed by insuring that the upstream liquid-air interface of the coating bead is relatively long and flat. This is accomplished by allowing the elastic liquid to pull itself over a relatively large distance out of a trough and into the knifing passage. The liquid is able to ascend into the knifing passage by virtue of liquid tension developed by the extensional flow in the upstream region of the coating bead.

Abstract: The blanks punched out from a film web and folded to form the jacket are then heated for a short time and cooled again in order to eliminate stresses in the jacket material which give rise to deformations and are also produced by the action of heat during processing of the material.

Abstract: A supplementary wort removal device in lauter tuns is provided, in order to avoid tight and solidly constructed discharge pipe assemblies with check valves for the wort, and the supplementary wort removal device preferably has a plurality of annularly segmented and vertically movable hollow members with screen walls, and the hollow members are open on the bottom. Preferably, the hollow members have a transverse section in the form of an inverted U or V. Before the pumping of the mash into the lauter tun, the hollow members are simply placed with their open bottoms on the screen and/or perforated floor of the lauter tun. The wort which is being discharged from the draff layer and flowing through the screen walls into the inside chambers of hollow members flows further through the open bottoms of hollow members directly through the screen and/or perforated floor of the lauter tun and into a collection chamber between the screen and/or perforated floor and the tun floor.

Abstract: The jacket blanks punched out from a film web are folded to give jackets and then closed by spot welding with the aid of a wavy resistance belt, the welding temperature being produced for a short time by means of a current pulse in the resistance belt.

Abstract: A cutting or breaking up device 11 is built into a straining tun 10, which is set in rotation following a certain draining off time, in order to loosen up the brewer's grain cakes which have built up on the screen base 15 of the straining tun 10. Cutting device 11 has an upright, motor-powered shaft 16, to which are fastened a plurality of horizontal arms 12, which in turn support rows of cutting blades 13A, 13B. At the bottom ends of these cutting blades 13A, 13B in turn are fastened at least two cutting shoes 14, which cause a rapid, intensive loosening up of the brewer's grain cake upon rotation of the cutting device 11.

Abstract: In discontinuous wort boiling for the manufacture of beer, the energy of the vapor arising from the boiling is used in a heat exchanger for the production of hot water. The heated brewing water is reheated in a second heat exchange process by the energy from the vapor arising from the boiling and, with this reheated brewing water, the refined wort is heated again in another heat exchange process before the boiling, whereby the brewing water which is cooled in this heat exchange process is reheated by the energy from the vapor arising from the boiling. Thus, the energy from the vapor produced during the wort boiling is fed directly back into the wort boiling process.