DE102006002199B4 - Method and device for the continuous, hygienic treatment of animal feed - Google Patents

Abstract

Process for the continuous, sanitizing treatment of feed, in particular of mealy or granular feed, characterized by the successive steps:
- Dosing a feed in the run with additives in a doser (4);
- Heating and mixing the feed in a mixer (5);
- Subsequent stay of the feed while maintaining the temperature for sanitizing in a Verweiler (6);
- Subsequent cooling of the feed in a cooler (8), so that it can be subsequently subjected to further mixing;
- Mixing of heat-sensitive substances in another mixer (9).

Description

The invention relates to a method for the continuous, hygienic treatment of animal feeds, in particular such as, for example, meal meals or feed pellets. The invention further relates to a device for carrying out the method.

In conjunction with press or expander equipment conditioners are used in the processing of feed or food, with such conditioners can also be used individually. A method of producing conditioned feed or food is described, for example, in US Pat EP 1 478 892 B1 disclosed. In this case, starting materials are metered and mixed and conditioned and molded in a pellet press, wherein at least one mixer and a conditioner are heated with hot air and the mixer steam is supplied. In operating mode, hot air is sucked out even before the product is fed into the pellet press or the supply of hot air to the conditioner is blocked.

The DE 199 03 313 A1 discloses a method of treating feeds wherein feeds are metered, heated, mixed, conditioned and then pressed. In doing so, special attention is paid to the reduction of odor components in the process air giving off the environment.

In a process for batchwise sanitizing, thermal treatment of flour, the flour is first heated in a mixer and mixed and then passes into a dryer / cooler. After cooling the flour additives are mixed in a second batch mixer. Here, the first batch mixer and the dryer / cooler are sanitized as a whole system with hot air and / or cleaned with cooling air.

The invention is based on the object to develop a method for the continuous, hygienic treatment of feed. Another object is to provide an apparatus for carrying out the method. The object is achieved with the features of claim 1 and 4 respectively.

The feeds are first dosed and mixed and heated in the mixing device so far that a sanitation is possible. Subsequently, the feed, preferably without contact with the environment in a dwell, where the feed while maintaining the temperature reached a desired or required time dwell in order to achieve complete sanitation. Thereafter, the feeds are cooled so far that they can be subjected to a further mixing process, are added to the heat-sensitive additives. Subsequently, the thus treated feed is stored, packaged or the like.

The process is continuous, so that all the above operations are performed constantly. The feed goes through the processes in continuous flow.

The invention will be described below in an embodiment with reference to the single drawing. The drawing shows the method in a simplified diagram representation.

feed flour 1 arrive from silo cells in an intermediate depot 2 and from there on a flap system 3 into a screw feeder 4 where z. As water, steam or other additives are added. After dosing, the feed gets into a mixer without environmental contact 5 where it is heated to 70-90 ° C and mixed until the required temperature and homogeneity are reached. The mixer 5 preferably has a high-speed rotor for intensive product mixing with water vapor, gases and / or liquids. Again, without environmental contact is the heated feed meal 1 into a tug of war 6 transferred. The Verweiler 6 corresponds in its structure to the disclosure of EP 1 478 892 B1 , It has a low-speed rotor and the heated, mixed product is maintained at a defined temperature for a predetermined time. The product transfer openings between screw feeder 4 , Mixer 5 and Verweiler 6 are designed as joints and smooth inside. mixer 5 and Verweiler 6 are completely covered with heating mats. If necessary, also two Verweiler 6 be provided.

In the continuous run, the feed gets 1 without environmental contact (for example by means of flap system) in a cooler 8th where it is cooled to a temperature below 30 ° C and a flap system 7 in a mixer 9 is transferred. This mixer 9 is with a discharge screw 10 to discharge the treated meal 1' and a facility 14 for the addition of heat-sensitive solid or liquid additives (enzymes, vitamins, etc.) provided. Liquid additives can be sprayed. The mixer 9 is a fast mixer.

The cooler 8th has a filter 11 and possibly a heating and drying device. Instead of the cooler 8th can also be used a pneumatic device.

The hygienized feed meal 1' is transferred or packaged in finished product silos or tank trucks.

LIST OF REFERENCE NUMBERS

1

middlings

1'

Fodder meal, sanitized

2

escrow

3

flap system

4

auger

5

mixer

6

Dweller

7

flap system

8th

cooler

9

mixer

10

discharge screw

11

filter

14

Facility

Claims (5)

Process for the continuous, sanitizing treatment of feed, in particular mealy or granular feed, characterized by the successive steps of: - metering a feed in a continuous flow with additives in a metering device ( 4 ); - heating and mixing the feed in a mixer ( 5 ); - Subsequent stay of the feed while maintaining the temperature for sanitizing in a Verweiler ( 6 ); - Subsequent cooling of the feed in a cooler ( 8th ) so that it can subsequently be subjected to further mixing; - mixing of heat-sensitive substances in another mixer ( 9 ). A method according to claim 1, characterized in that the feed is transferred without environmental contact between dosing ( 4 ), Mixer ( 5 ), Verweiler ( 6 ), Cooler ( 8th ) and further mixer ( 9 ). A method according to claim 1, characterized in that the step of cooling is carried out in a cooler with a heating and drying device or instead of the cooler by means of a pneumatic device. Device for carrying out a method according to one of claims 1 to 3, characterized in that it comprises a metering device ( 4 ), followed by a mixer ( 5 ) and at least one Verweiler ( 6 ), wherein on the Verweiler ( 6 ) a cooler ( 8th ) followed by another mixer ( 9 ) is subordinate. Device according to claim 4, characterized in that dosing devices ( 4 ), Mixer ( 5 . 9 ) and cooler ( 8th ) are connected to each other such that an environmental contact of the feed is prevented.

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