PNR designs a washing system for the wine sector
Nozzles and washing heads for the treatment of tannin powders in the wine-making industry
PNR designs a washing system for the wine sector
Nozzles and washing heads for the treatment of tannin powders in the wine-making industry
INDUSTRY
Wine-making industry
APPLICATION OF PNR PRODUCTS
Washing of machinery for the treatment of tannin powders
PROBLEM
Internal and external washing of machinery
PNR SOLUTION
Manifold system with high impact jet nozzles and washing heads
SCENARIO FOR THE SECTOR
Tannins in the wine sector
Tannin is one of the four characteristics – in addition to acidity, alcohol and residual sugars – that make wines resistant to aging.
The tannin that we find naturally in the wine comes from its extraction from the grape pips during pressing or maceration. A part of the tannins is given to the wine also by wooden barrels where it is aged.
Tannins are also available in the form of liquid or powder additives as well, to be added to wine in its various production phases. The purposes of using this kind of additives are many, from the stabilization of the wine itself to the elimination of sulfur compounds with an unpleasant odor, up to the control of bacterial activity and molds.
Download our brochure dedicated to nozzles, washing heads and atomizers for the wine-making industry
Tannin is one of the four characteristics – in addition to acidity, alcohol and residual sugars – that make wines resistant to aging.
Tannins extraction – industrial process
What are the phases of extraction of tannin from wood?
1 | Wood cutting and rest
The cut logs are stacked and left to rest outside (in the open air);
2 | Shredding
The logs are chopped to expose as much surface as possible to water and facilitate the release of tannin;
3 | Extraction
The chopped wood is dropped into large autoclaves with hot water and steam above 100 degrees;
4 | Cooling and refining
The obtained tannin is cooled to precipitate the not completely soluble substances and impurities. Tannin is purified and refined according to the final use;
5 | From liquid to powder
The liquid tannin can be sold as it is. However, to facilitate transport, storage and use, it can also be reduced to powder.
THE PROBLEM
The customer who contacted us needed to wash the inside and outside of a machine for the treatment of tannin powders in the wine sector.
PNR SOLUTION
The Technical Department of PNR has developed a system of manifolds with nozzles and washing heads that could wash a mesh basket for the treatment of tannin powders, which rotates along its longitudinal axis inside a box.
On the upper part of the manifold, placed inside the box and around the basket, there are 9 high impact nozzles K. Their jet is directed on the outside of the basket.
8 UBC rotating washing heads have been installed in the two C-brackets that support the manifolds structure, 4 per side of which 2 at the bottom and 2 at the top.
The action of the washing heads is aimed at cleaning the residues removed from the K nozzles, in order to keep the inside of the box clean.
At the intersection between the C-shaped manifolds and the longitudinal manifold, three-way ball valves have been installed, which manage the flow of the liquid, directing it first to the flat jet nozzles and then to the washing heads.
NET BASKET AND MANIFOLD
Isometric view of the washing system
1 UBC rotating washing head | 2 Net basket
3 K flat fan nozzle. High impact | 4 Manifold
5 Supplyliquid inlet | 6 Three-way diverter ball valves
NET BASKET AND MANIFOLD
Detail of the washing system
1 K flat fan nozzle. High impact | 2 UBC rotating washing head
3 Spray | 4 Manifold
5 Rotation direction of the basket | 6 Net basket
ADVANTAGES
Before our intervention, the washing process was carried out manually and using high pressure washers, resulting in high costs and extensive use of water resources.
The solution proposed by PNR allows to improve the washing process, optimizing costs and times.
FOCUS ON THE PRODUCT
K flat jet nozzles are designed with a spoon-shaped convex surface. The liquid flow is concentrated and produces a narrow-angle flat jet with a high impact force. For this feature they are widely used in all work environments that require powerful jets. Compared to the standard cat-eye-shaped flat fan nozzle tips, K nozzles have a larger and free inner passage and are less subject to clogging, provide high performance cleaning efficiency and have an extended operating life. They are designed with a specific angle (see ~ CL on the drawing) between inlet orifice and spray orientation surface. These nozzles are available with standard male threads but also with quick coupling nipples to shorten maintenance time. Please contact our Sales department for more information.
They are built entirely in stainless steel, with the shaft mounted on a double crown of steel balls which allows the use in any position. Inner and outer surfaces are carefully machined, deburred, cleaned and polished to a precisely defined roughness grade to avoid contamination from bacterial growth. UBC series heads are available with different connection designs, that is a female thread and a clip-on connection as standard, a weld-on or a tri-clamp connection on request.
ADVANTAGES
Before our intervention, the washing process was carried out manually and using high pressure washers, resulting in high costs and extensive use of water resources.
The solution proposed by PNR allows to improve the washing process, optimizing costs and times.
FOCUS ON THE PRODUCT
K flat jet nozzles are designed with a spoon-shaped convex surface. The liquid flow is concentrated and produces a narrow-angle flat jet with a high impact force. For this feature they are widely used in all work environments that require powerful jets. Compared to the standard cat-eye-shaped flat fan nozzle tips, K nozzles have a larger and free inner passage and are less subject to clogging, provide high performance cleaning efficiency and have an extended operating life. They are designed with a specific angle (see ~ CL on the drawing) between inlet orifice and spray orientation surface. These nozzles are available with standard male threads but also with quick coupling nipples to shorten maintenance time. Please contact our Sales department for more information.
They are built entirely in stainless steel, with the shaft mounted on a double crown of steel balls which allows the use in any position. Inner and outer surfaces are carefully machined, deburred, cleaned and polished to a precisely defined roughness grade to avoid contamination from bacterial growth. UBC series heads are available with different connection designs, that is a female thread and a clip-on connection as standard, a weld-on or a tri-clamp connection on request.