Coating apparatus – Edible base or coating type – Projected of forced flow of coating material
Patent
1997-04-28
2000-05-02
Dudash, Diana
Coating apparatus
Edible base or coating type
Projected of forced flow of coating material
118303, 118313, 118695, 426302, 426442, 426805, 427 214, B05B 130, B05B 124, A61J 300
Patent
active
060559268
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The subject of the invention in a monobloc apparatus for dosing enzymes, for the addition, dosing or admixing of enzymes in the liquid state in the process of preparing feed, preferably post-pelletized feed.
PRIOR ART
From the biochemical point of view the addition of particular enzymes in the manufacture of compound feed could be defined as the admixing of a substance capable of activating or facilitating a chemical reaction which allows the conversion or breakdown of a substance.
Like many other biological functions, animal digestion in the sum of a set of chemical transformations activated by enzymes which act on ingested foods.
At the present time, new animal nutrition techniques incorporate the use of various types of enzymes, making it possible to increase the nutritional value of feed by improving its digestibility and thereby achieving large yields and high conversion ratios.
It is therefore logical to facilitate the dosing of the said enzymes in liquid form for the manufacturer of compound feed by furnishing him with an apparatus which allows him to effect the said addition correctly, with the greatest ease of installation, handling, robustness and accuracy.
In order to determine the type of dosing system, we ought to consider two points: property of being a heat-sensitive product, that is to say that, when subjected to high temperatures during the various manufacturing processes, they are to a large extent destroyed. pig and poultry sector is to produce extruded, expanded and pelletized feed (at the very least pelletized). It is in this type of feed and for these young animals that the addition of enzymes in the liquid state offers better results. Admixing the said liquids into pre-pelletized meal would destroy some of the enzymatic properties on account of the high temperatures to which they would be subjected in this phase of the manufacturing process.
Bearing in mind that the quantities of enzymes in the liquid state to be admixed will be relatively small (of the order of 600 cc per tonne of manufactured feed) and that the entire spectrum of dosing apparatuses of the monobloc type has been devised for small reservoirs of liquid in the form of 50-100-l drums, the main characteristics which the said apparatuses should possess could be determined as follows:
In the patent ES2003958, the proprietor, Mangra S. A., has already protected a continuous-mode system for dosing and admixing fluids in the process for pelletizing compound feeds. This system, however, was designed to work while hot during the pelletization process since the substance to be dosed, molasses, was not heat-sensitive.
Most of the dosing apparatuses currently on the market use pulsed dosing pumps, either of the plunger or membrane type. The said pumps are adjusted via a control located on the actual dosing or body unit. Verification that each pulse is equivalent to a specified rate of atomization has to be carried out via in-situ tests. This system entails the following drawbacks: a flow rate meter to verify this;
On the European market there are pumps similar to those used in the dosing system which is the subject of the invention, but they are built into dosing devices which lack microregulation and electronic data processing.
Likewise, known injectors have spraying angles which vary solely as a function of the working pressure and do not embrace all the sprinkling possibilities offered by the components of the enzyme-dosing system which is the subject of the invention.
SUMMARY OF THE INVENTION
The foregoing considerations lay down the guideline that the dosing system will be a continuous addition of enzymes, to be carried out after the pelletization process, using a product that has already been pelletized and chilled.
Consequently the system will consist of an admixing of enzymes which will be accomplished by utilizing the discharging of the pellet as it exits the chiller, either as it drops or during transportation.
For this purpose a specific product-flow sensor will be fitted which will advise
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patent: 5549009 (1996-08-01), Zaschel
patent: 5609908 (1997-03-01), Voss
patent: 5612188 (1997-03-01), Shuler
patent: 5645899 (1997-07-01), Unterberger
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Dudash Diana
Fontcuberta 1 Mangra, S.A.
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