DE1138272B - Gaer feed silo - Google Patents

Description

GERMAN

PATENT OFFICE

S68392m / 45e

REGISTRATION DATE: MAY 6, 1960

NOTICE
THE REGISTRATION
ANDOUTPUTE

INTERPRETED: OCTOBER 18, 1962

Fermentation silo

The invention relates to a fermentation silo with a pressure equalization system. Such silos are is known to be subject to large temperature fluctuations, which essentially affect the prevailing in the container Affect internal pressure. If now the internal pressure decreases so far that it is below the Atmospheric pressure is, then the outside air tries to flow into the container and a Establish pressure equalization. On the other hand, if the internal pressure in the container is greater than atmospheric pressure, then the gases formed in the container strive to flow out to the outside until in turn, a corresponding pressure equalization is established.

It is well known that the plant matter stored in a silo continues to breathe and develops large quantities in the process of carbonic acid. If you make sure that this remains in the container without air admission from the outside, then the silage begins to ferment, but without spoiling. This state changes immediately when the carbon dioxide can escape and air flows in from the outside. Then the free oxygen causes the Air molds the silo and spoils it.

It has become known to regulate the pressure in a silo in such a way that it is hermetically sealed to conclude that you have a flexible, e.g. made of rubber, over its open side Attaches a cap and then creates a negative or positive pressure in the silo. If the air is sucked out of the silo, what can be done with a simple hand pump, the rubber cap is pressed along with it great force on the silo content and compresses it. This is done after removing the cap a further refilling of the silo, with a renewed compression by the generation of negative pressure of the silo. Furthermore, it is also not new to go about filling a silo one airtight and pressure-tight container that tapers downwards in the shape of a funnel to use.

All these known devices differ fundamentally from the invention in which the Resilient, airtight cover of a fermentation silo made of a flexible, completely self-contained There is a hollow body, which is attached to the inner wall under the pressure of an introduced gas of the fermentation silo. Such a pressure compensation body according to the invention can be used at any time be brought to the desired compression level and with the help of appropriate pressure regulators be kept constant. All in the fermentation silo as a result of temperature fluctuations or at

Applicant:

A. O. Smith Corporation, Milwaukee, Wis. (V. St. A.)

Representative: Dr.-Ing. H. Ruschke, patent attorney, Berlin-Grunewald, Auguste-Viktoria-Str. 65

Leroy M. Osborne, Kankakee, 111. (V. St. Α.), Has been named as the inventor

Withdrawal of stored goods or gas formation resulting pressure changes find their immediate Compensation in a corresponding expansion or contraction of this flexible pressure compensation body, without having to worry about a leak. There is also no risk of deformation of the storage vessel itself, which has often occurred with rigid airtight barriers. It can After all, there is no doubt that the constructional properties differ from the familiar very substantially differentiating subject matter of the invention advantageously stands out and an enrichment of the represents the prevailing state of the art in this special field.

Further features and advantages that are directly related to the invention are intended Hand drawings are now explained and described in more detail. It represents Fig. 1 is a vertical section through a fermentation feed silo with a pressure compensation body according to the invention and with the hollow body which forms the curvature and is located at the bottom of the container, FIG. 2 shows a section similar to FIG. 1, 3 is a plan view of the fermentation feed silo,

4 shows a section through a modified pressure compensation body and finally

Fig. 5 shows a section through a further modification of the pressure compensation body.

The cylindrically formed and airtight fermentation silo is on a foundation 2 posted. The inner and outer surfaces of the container 1 have a ceramic coating against the effects of the weather as well as against corrosion by the stored material.

The pressure compensation body according to the invention for the silo is an inflatable, flexible hollow

2OJ 677/106

Claims (4)

3 4 body 51, the hollow body 62, which is impervious to gases and liquids, in the middle of the Fundal and disposed in the open top of the container 1 mentes 2 and at a distance from the interior is. The walls of the fermentation silo with a certain pressure are arranged. Like Fig. 1 inflated hollow body has a generally shows, the diameter of the hollow body 62 is smaller cylindrical side wall 52 and a convex 5 as the inner diameter of the cylindrical silo ceiling and bottom wall 53, 54. The inside of the container. This hollow body including its radial Pressure equalization body prevailing pressure presses circumferential ring 66 is available via lines 59 and 63 the side wall 52 firmly against the upper container wall with the compressor 58 in connection, wherein a and in this way provides an airtight silo valve 64 arranged in the pipeline 63 The top wall 53 and the upper io pressure flow to the hollow body 62 regulates. Before the Part of the side wall 52 of the pressure equalization body 51 filling the silo, the compressor 58 will protrude over the upper edge of the silo and tet, whose pressure regulator 60 a predetermined close it off like a roof. The ground pressure in the hollow body 62 engages in this process. After this went quite far into the silo. Pouring in the silo is the pressure compensation-Zum The purpose of bringing about an effective device 51 is used and described in the Attachment of the hollow body 51 to the silo 1 way attached to the silo. Then the is an annular emptying of the hollow body 62 and its removal on the pressure compensation body Protective strip 55 is provided, which extends downward from the silo container, the one shown in FIG. 2 and the side cavity 65 remains outside of the upper peripheral edge. wall 52 extends. Several spaced apart 20 In Fig. 4, a further embodiment of the dark circles 56 or other appropriate fastening of the compensating body according to the invention is shown, transmission devices are near the peripheral edge of the Here, an annular angle iron 67 is arranged in the protective strip, which is particularly due to the proximity of the upper Silo wall with several screws-Fig. 3 is clarified. The result is that the bolts 68 are attached. Two essentially circular dark circles 56 with several equally spaced apart 25 membranes 69 and 70 will cooperate on their peripheries with hooks 57 which are attached to the outer surface of the angle iron 67 by screws or in some other way with a retaining ring 71 and screw bolts 72 taken, surface of the upper part of the silo container 1 attached An annular seal 73 from resiliently brought up. In this way, the pressure-equalizing material is perfectly secured between the membrane body 51 and in the upper silo 30 and represents a resilient connection. A container is held. The opening in the upper membrane closes on the convex top wall 53 of the compensating pipe 74 is used to supply compressed air from the body 51 water is immediately drained to the compressor 58, so that after inflation, in cooperation with the protective strip of this membrane body, a cylindrical edge window55 a Infiltration of moisture and other 35 section 75 is formed, which rests against the interior foreign matter between the side wall 52 of the pressure surface of the south wall to form a closure compensating body and the silo inner wall against the infiltration and leakage of gases, basically avoided will. With the hoof of a grain Fig. 5 shows an even further modified form pressor unit 58, the pressure compensation body is a flexible pressure compensation body according to the invention to the desired compression pressure. Here you use an inflatable. In order to be able to achieve this, the granular, flexible body 78 is of annular shape, pressor with the hollow body 51 via a pipe which is inserted into the upper part of the silo 1. The line 59 is connected, in which a pressure regulator 60 is connected to the outer cylindrical surface of the hollow body 76 in order to be able to maintain the required pressure on the inner wall of the silo at all times and forms one. The pressure flow inside the lock. With this hollow body is a pipe half of the pipe 59 is by means of a valve 61 line 77 connected to the compressor and regulated. the control device leads. After the inflation, changes in pressure in the digestate silo, caused by this hollow body 76, form a central opening 78, temperature fluctuations or a distance through which the silo is filled. Only then is the stored material or, as a result of gas formation, 50 the opening 78 closed by a second inflatable body 79 by expanding or joining together. This hollow drawing of the flexible pressure compensation body 51 is also noticeable with the body 79 via a pipeline 80. A reduction in the pressure prevailing in the compressor 58 and the pressure regulator 60 in the connecting silo container comes together. A flexible protective cover 81 with a tightening of the pressure compensation body 51 equal. With all 55 number of dark circles 82 or other fluctuations close to the circumference, a sufficiently high pressure arises in the fastening devices present at the catch edge, pressure compensation body 51 and silo container, which is then placed over the hollow bodies 76 and 79 is sufficient, a sealing closure between and through hooks 83 secured, which are attached to the outer wall of the side wall 52 of the pressure equalization body of the silo. Manufacture in this way and the inner wall of the silo. 60 attached protective cover 81 keeps the hollow bodies in the correct orientation and prevents the infiltration of the same body, no deformation of the silo moisture and foreign matter can occur between the silo and the container, which is the case with rigid, airtight hollow bodies 76 and 79. Storage containers is often the case. When filling the _{digestate silo, the pressure S 5} PATENT CLAIMS, compensating body 51 is removed from the upper part of silo 1. Digestate silo with a flexible, air-tight cover and a vault-tight cover, characterized by a pad for the silo material to be poured in, is inserted flexible, closed hollow body (51; 69, 70; 78, 79), which under the pressure of an introduced gas adheres to the inner wall of the fermentation silo hugs sealingly. 2. Fermentation silo according to claim 1, characterized in that that the hollow body with an outwardly extending flexible protective strip (55) is provided which engages in hooks (57) arranged on the silo. 3. Fermentation silo according to claim 1 or 2, characterized in that in the to the hollow body leading pipelines (59, 74, 77 or 80) a pressure control device (60) is provided is. 4. Fermentation silo according to one of claims 1 to 3, characterized in that the The hollow body is composed of an inflatable flexible body (78) of annular shape, a smaller inflatable cylindrical hollow body (79) is inserted into its central opening will. Considered publications:
German Patent No. 811 633;
Swiss Patent No. 235 723;
U.S. Patent No. 2,643,602. 1 sheet of drawings © 209 677/106 10.62