DK146242B - NOZZLE FOR A DRAWING PLACE FOR SPECIFICALLY EASY FOAMING LIQUID - Google Patents

Description

(19) DENMARK \ re

j || (12) PUBLICATION WRITING (11) 146242 B

DIRECTORATE OF

PATENT- 06 TRADE MARKET

(21) Patent Application No .: 0144/77 (51) Int.CI.3: B67C 3/26 (22) Filing Date: 14 Jan 1977 B 65 B 3/22 (41) Aim. available: 16 Jul 1977 (44) Submitted: 08 Aug 1983 (86) International Application No :- (30) Priority: 15 μη 1976 DE2601421 (71) Applicant: MAGENBERG-WERKE AG; 4000 Duesaeldorf, DE.

(72) Inventor: Horst Mueller; THE.

(74) Plenipotentiary: Lehmann & Ree Engineering Company (54) Nozzle for a bottling point for especially light foaming liquids

The invention relates to a mouthpiece for a bottling point for liquids, in particular for such liquids as e.g. milk, which is prone to blisters, and having an abutment portion located immediately at the outlet opening and in the fluid stream which has a plurality of flow openings and forms a large flow cross-section.

For milk dispensing machines, in particular for milk which is to be sterilized in foldable packaging, it is required that the milk be drained into the packaging containers quickly and as far as possible without foaming of gQ. In practice, this is done by choosing large flow cross sections of approx. 20 cm2 for the mouthpiece and deliver the milk pulse from the bottling machine. A further (O requirement in addition to the fast and foam-free bottling is that no must *

ISLAND

2 146242 a drip of milk from the mouthpiece. Attempts have been made to meet these requirements with a nozzle of the kind mentioned at the beginning, in which the insert part is formed of stainless steel screens. However, the use of such insert parts is problematic in many respects.

They are easily clogged so that they must be removed and cleaned. The cleaning of the serums makes normal or germ-free bottling difficult. Replacement of old sieves with new ones is ruled out due to the relatively high price of the stainless steel sieves. Furthermore, post-drip milk is not prevented satisfactorily.

The object of the invention is to provide a mouthpiece of the type mentioned in the first, whereby even with liquids which are prone to foaming, a homogeneous and support-free liquid flow is obtained which does not require fitting and which prevents post-drip with better results.

For a nozzle of the kind mentioned above, this task is solved by the insert part being foamed with open pores.

The mouthpiece according to the invention is far less vulnerable to clogging than is known to say mouthpieces provided with insert. It has been found that despite the flow of particles, e.g. coagulates of milk which, together with the liquid, reach into the mouthpiece and clog up to 30% of the foam, still remain homogeneous and practically bladder-free. A homogeneous fluid flow is no longer achieved at the same degree of clogging with a capped mouthpiece. Thus, since the mouthpiece of the invention is less vulnerable to clogging, it requires less care. A further advantage consists in the fact that the foam material is very cheap compared to special metal screens. A cleansing is therefore not required. When the foam is clogged, it is replaced with new foam. In the case of sterile bottling, this is usually required for one day production only once daily and after completion of production, together with the cleaning and sterilization of the bottling plant. In addition, it has been found that post-drip is almost completely avoided by an insert part of foam.

Preferably, the foam material is made of polyurethane and is in the form of a sheet having a thickness of approx. 5 mm and rests on a support member having a degree of aperture such that the liquid does not settle in front of the support member. An easy-to-clean support element consists of a perforated plate or wire mesh.

In the following, the invention is explained in more detail with reference to a cross-section shown in the drawing through an embodiment of the mouthpiece according to the invention.

The nozzle consists of a round pipe portion 1, the lower edge of which 3 is the bracket towards the center and in this way forms a collar 2 on which the insert portion rests. The insert portion consists of a perforated plate 3 serving as a support element with a high degree of opening e.g. of approx. 90%. Because of this degree of opening, the perforated plate 3 provides no special resistance to the liquid to be drained. On the perforated plate 3 rests a foam 4 plate with open pores, e.g. polyurethane with a thickness of approx. 5 mm. The perforated plate 3 and the foam plate 4 fill the full cross section of the nozzle.

The foam plate 4 ensures, firstly, that above this standing liquid column can be dispensed pulse-free without post-drip, and partly that the flowing liquid jet is homogeneous and support-free.

This is also the case even when particles are deposited from the liquid to be drained, e.g. coagulated milk protein on the foam disc 4 to such an extent that, by a differently designed filter insert, e.g. a sieve, will be a danger of drip and blistering at the bottling.