DE380219C - Method and device for the preservation of green fodder in containers - Google Patents

Description

ISSUED
ON SEPTEMBER 4, 1923

CLASS 53 g GROUP

Mercator A. G. in Zurich.

To turn green fodder into something as digestible as possible to fresh fodder To produce permanent food of high nutritional value, it is transformed into sweet pressed food, by cutting it in the state of its highest fodder value, then bringing it in immediately, then in closed containers piles up and 'causes fermentation by self-heating. The warming ίο and fermentation can be reduced by pressing the feed.

Scientific studies on the fermentation processes taking place here have now resulted in the following:

1. When the feed is heated to 18 to 35 ° C, acetic acid fermentation takes place with a pungent, caustic odor. The bacteria die at 50 ^° and in the presence of lactic acid.

2. The butyric acid fermentation is strongest at 30 to 35 ° and develops an unpleasant, stinking odor. It is interrupted ^{at 37 0.}

3. Lactic acid fermentation begins at 30 to 35 ⁰ and lasts above 50 ⁰ . The fermentation smell is slightly sour, fruity, sweet.

The development of lactic acid is from

of greatest importance for the shelf life, digestibility and taste of the feed. Acetic acid and butyric acid are harmful. It is therefore extremely important to use suitable methods ^{to bring about rapid heating to around 50 °} , thereby reducing harmful acid formation and increasing lactic acid fermentation.

In contrast, the previously known processes for the production of compressed fodder have the disadvantage that the fermentation is too slow, so that the chemical conversion the feed values are adversely affected.

According to the present \ "experience is now made by means of a suitable device A faster heating of the lining is achieved by putting it through an airtight lid immediately after layering is so sealed off from the outside atmosphere that the lid is loosely suspended the filling can be lowered onto the feed without burdening it. According to experience there is first a temperature increase in the middle of the feed stock. The warmed Air is pushed outwards and upwards. If the container is not covered, so it rises, because it is lighter, and is replaced by inflowing cold air. is However, if the airtight lid is placed without pressing, the heated one becomes Air trapped in the container, spreads and causes an accelerated and even Increase in temperature in the whole container. This will keep the formation of acetic acid and butyric acid to a minimum limited and promotes lactic acid formation.

For the purpose of increased temperature increase can in a known manner below on Heat sink attached to the floor or outside of the walls. These heat bodies can be arbitrary, in particular also through Electricity to be heated. With contact thermometers that are inserted into the fermentation feed on a rod and remain stuck in it until it is refilled, according to the present invention simple, known way by switching on or off an electrical auxiliary circuit the heating current is automatically interrupted and the pressing switched on. A lock switch can be used for this purpose. Such a device saves the monitoring of fermentation.

In the drawing, 1 is the silo container, its lid, 3 the suspension, 4 is the Feed content and 5 are the radiators. The lid 2 is immediately after filling the feed 4 lowered so that it sits on the feed without putting any weight on it. Once the desired If the temperature increase is reached, the lid can be loaded in a known manner and thereby further increase in temperature be prevented. 6 is a contact thermometer, 7 a lock switch, 8 an apparatus, z. B. a winch to the pressing device by electric motor o. The like. In action set. 9 is the main power line, 10 is the secondary line.

The lid 2 is expediently made of a material that is heat-insulating works, or it can be covered in layers with appropriate insulating material.

Claims (4)

Patent Claims: 1. A method for preserving green fodder in containers, characterized in that that the green fodder is evenly layered in the container and covered by an airtight lid, the is loosely suspended over the feed, is covered so that the feed does not experience compression. 2. Embodiment of the method according to claim 1, characterized in that that the feed is only loaded after the maximum fermentation temperature has been reached. 3. embodiment of the method go according to claim 1 and 2, characterized in that that the heating is switched off automatically by a contact thermometer and the pressing is switched on will. 4. Device for carrying out the method according to claims 1 to 3, characterized in that a lid (2) is so attached in a container (1) is that it can be relieved or encumbered as required, furthermore in any way heatable, lying in the container body (5) are available, which by means of a contact thermometer (6) in any, can be switched on or off in a known manner, depending on the temperature of the container contents (14) requires, and that finally from the contact thermometers (6) also the pressure no can be switched on and off automatically as required. 1 sheet of drawings.