EP0736163A1 - Process and device for the extraction of water from fresh grass and the final drying of the pre-treated grass - Google Patents
Process and device for the extraction of water from fresh grass and the final drying of the pre-treated grassInfo
- Publication number
- EP0736163A1 EP0736163A1 EP95933291A EP95933291A EP0736163A1 EP 0736163 A1 EP0736163 A1 EP 0736163A1 EP 95933291 A EP95933291 A EP 95933291A EP 95933291 A EP95933291 A EP 95933291A EP 0736163 A1 EP0736163 A1 EP 0736163A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grass
- water
- heat
- press
- belts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/14—Drying solid materials or objects by processes not involving the application of heat by applying pressure, e.g. wringing; by brushing; by wiping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/02—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces
- F26B17/08—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces the belts being arranged in a sinuous or zig-zag path
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B7/00—Drying solid materials or objects by processes using a combination of processes not covered by a single one of groups F26B3/00 and F26B5/00
Definitions
- the invention relates to a method for withdrawing water from fresh grass and for post-drying the pretreated grass.
- the object of the present invention is now to provide a method and an apparatus for carrying out the method with which freshly cut damp grass can be dried very gently.
- the method according to the invention and the device according to the invention enable the grass to be prepared for subsequent pressing by means of heat treatment with hot steam, in which pressing approximately 80% of the water content can be driven out without damaging the fine leaves and grasses.
- the residual water content can be reduced to the desired level in a subsequent air drying process in a heat-insulated, hermetically sealed room with a very small amount of energy and low heat losses.
- the heat treatment requires very little energy because the fresh and still cold grass that is supplied can be preheated with the warm water expelled in the press.
- the grass lies on a vapor-permeable belt and is only turned a few times. This avoids mechanical stress and damage.
- the grass components are also treated extremely gently during subsequent pressing.
- the residual moisture is dried out with warm air also on a belt with which the grass components can be prevented from flexing.
- Another advantage of the method is that the farmer can harvest the feed at the stage, ie at the time of its highest nutritional value, regardless of the weather.
- the compact design of the device allows it to be built on a vehicle, thereby allowing multiple farmers to use it on their own farm. Furthermore, the grass being treated only comes into contact with oxygen for a short time between the individual process steps, thereby maintaining its beautiful green color.
- the invention is described in more detail below with the aid of an illustrated embodiment.
- the single figure shows a schematic representation of the drying device.
- Freshly cut moist fresh grass hereinafter referred to as grass G 1
- a first transport device 1 designed as a vibrating device, for example a conveyor belt or an eccentric conveyor, into a tub 2 filled with warm press water, the origin of which will be described later.
- the grass G and any stones S contained therein are separated on the transport device 1.
- a further separation takes place in the tub 2 filled to the brim, into which the grass G is introduced.
- the grass G- introduced into the tub 2 is fed into a well by a first conveyor 4 through an inlet 6 conducted heat-insulated housing 5, which is part of a heat treatment device 3.
- the conveyor device 4 has a plurality of drivers which gently transport the grass vertically upwards.
- a plurality of essentially horizontally circumferential perforated bands 7 are arranged one above the other in the heat-insulated housing 5.
- five such belts 7 rotating around two rollers 9 each are shown.
- more bands 7 can also be used in order to increase the residence time T of the grass G 1 accordingly.
- the rollers are driven by a motor 11 which is preferably adjustable in speed.
- the belts 7 lying one above the other are offset from one another in the longitudinal direction, the output-side end of the respective overhead strand coming to lie above the inlet-side overhead strand of the belt 7 below it. Below the lowest band 7 is one
- the steam generating device 13 used in the housing 5.
- the steam generating device 13 consists of a trough 15 for holding water, which can be heated and evaporated by a heating device 17, here represented schematically by a number of burners.
- heating elements can of course also be used in the trough 15, or hot steam can be generated externally and introduced into the housing 5 from below.
- Steam generating device 13 preferably extends over the entire length of the lowermost belt 7.
- a second conveyor device 19 is attached below the outlet end of the lowermost belt 7 which the heat-treated grass G 2 falling from the belt 7 at the outlet end can be led out of the housing 5 through an outlet 20.
- the press 23 can be designed like a fruit press.
- a hydraulically operated piston 25 presses with a plate 27 in one or more press strokes about 70% to 80% of the water contained in the grass G 2 .
- a belt press or a pair of squeeze rollers can also be used for gentle pressing.
- the press water is collected and passed through a preferably insulated line 29 to a sprinkler system 31.
- the sprinkler system 31 can be arranged above the transport device 1, on the conveyor device 4 or above the belt 7 located at the top in the housing 5. It is designed and intended to distribute the warm water expelled from the grass G 2 in the press 23 over the fresh, still cold grass G and to warm it up slowly before it reaches the steam atmosphere.
- the pressed grass G 3 becomes 23 after the press loosened up.
- a vibrator 33 can be used for the loosening, which gently loosens the compressed grass G 3 . If the work is carried out continuously, a vibrating belt can also be used. At the same time, this enables the transport of the grass G 3 from the press 23 to a drying room 35.
- the drying room 35 consists of an insulated box 37, in which several peripheral perforated conveyor belts 39 are inserted.
- the arrangement of the conveyor belts 39 is the same as in the heat treatment device 3.
- the conveyor belt 39 lying at the bottom can be led out through an opening 41 in the box 37 in order to simplify the removal of the dried grass G 4 .
- the drying space 35 shown in the figure below the box 5 can also be arranged laterally as an independent unit of the heat treatment device 3.
- a centrifuge or another means for driving the water out of the grass G 2 could also be used.
- the entire system i.e. the heat treatment device, the press 23, the vibrator 33 and the drying room 35 can be built on a chassis with wheels 41, so that the system can be used at different locations.
- Freshly cut grass G-- is applied to the first transport device 1 and from it into the tub 2 initiated. Contaminants, such as stones and earth, sink downward in the tub 2 and can be removed through an outlet 43 with the contaminated press water.
- the cleaned and slightly warmed grass G- is transported by the drivers on the first conveyor 4 onto the first belt 7 located in the top of the box 5. It is conveyed further from the first belt 7 to the opposite end and deposited there on the second belt 7 arranged below. The grass mass in ribbon form is carefully turned over. This process is repeated up to the lowest band 7.
- Hot water vapor is continuously passed through the grass G 1 through the perforated bands 7, and its pores are carefully opened.
- the dwell time t of the grass G- in the heat treatment device 3 can be set at a temperature T of 60 * to 90 ', preferably 70 * to 80'.
- the heat-treated grass G 2 is led out of the heat treatment device 3 through the outlet 20 on the second conveyor device 19 to the press 23 and the water is largely, ie approximately 70% to 80%, squeezed out.
- one or more pressings can take place in succession.
- the squeezed warm press water is returned through line 29 and distributed to the newly fed grass G 1 in order to warm it up gently and to avoid a thermal shock when entering the warm steam atmosphere.
- the pressed grass G is first passed over the vibrator 33 and loosened up before it is fed to the drying room 35 and there carefully dried on conveyor belts 37 by warm air. It leaves the drying room 35 through the opening 41 as undamaged dry material G 4 without sheet loss.
- the pretreated and pressed grass can alternatively or additionally be placed in a box, e.g. of the size 4m x 4m x 5m, introduced and dried out there with a conventional hay blower. In this way, damage to the dry grass can be ruled out until it is fed to the cattle.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Drying Of Solid Materials (AREA)
- Processing Of Solid Wastes (AREA)
- Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
- Preparation Of Fruits And Vegetables (AREA)
- Storage Of Fruits Or Vegetables (AREA)
- Medicines Containing Plant Substances (AREA)
Abstract
Description
Claims
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH316894 | 1994-10-21 | ||
CH3168/94 | 1994-10-21 | ||
CH316894 | 1994-10-21 | ||
PCT/CH1995/000239 WO1996012923A1 (en) | 1994-10-21 | 1995-10-16 | Process and device for the extraction of water from fresh grass and the final drying of the pre-treated grass |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0736163A1 true EP0736163A1 (en) | 1996-10-09 |
EP0736163B1 EP0736163B1 (en) | 2001-01-10 |
Family
ID=4250095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95933291A Expired - Lifetime EP0736163B1 (en) | 1994-10-21 | 1995-10-16 | Process and device for the extraction of water from fresh grass and the final drying of the pre-treated grass |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0736163B1 (en) |
AT (1) | ATE198663T1 (en) |
DE (1) | DE59508956D1 (en) |
WO (1) | WO1996012923A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19537286B4 (en) * | 1995-09-22 | 2006-03-23 | Dieffenbacher Gmbh + Co. Kg | Press for reducing the water content of sludge |
DE19710711A1 (en) * | 1995-09-22 | 1998-09-17 | Dieffenbacher Gmbh Maschf | Lignite dewatering under mechanical pressure, aided by superheated steam |
NL1009040C2 (en) * | 1998-04-29 | 1999-11-01 | Petrus Johannus Hendricus De B | Method for drying manure and device for carrying it out. |
FR2922882B1 (en) * | 2007-10-25 | 2010-01-01 | Cybelia | PROCESS FOR TREATING A LIQUID OR SEMI-LIQUID EFFLUENT, SUCH AS SLURRY, AND ASSOCIATED PLANT |
CN115787337B (en) * | 2022-12-09 | 2024-01-09 | 湖北金汉江精制棉有限公司 | Refined cotton rolls dewatering equipment |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB482312A (en) * | 1936-10-14 | 1938-03-28 | Charles Goodall | Improvements relating to the drying of grasses |
DE2947746A1 (en) * | 1978-11-27 | 1980-06-04 | Franz Duss | Drying appts. for wet grass - heats grass in steam atmosphere before squeezing some of moisture out |
-
1995
- 1995-10-16 AT AT95933291T patent/ATE198663T1/en not_active IP Right Cessation
- 1995-10-16 WO PCT/CH1995/000239 patent/WO1996012923A1/en active IP Right Grant
- 1995-10-16 EP EP95933291A patent/EP0736163B1/en not_active Expired - Lifetime
- 1995-10-16 DE DE59508956T patent/DE59508956D1/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9612923A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE59508956D1 (en) | 2001-02-15 |
WO1996012923A1 (en) | 1996-05-02 |
ATE198663T1 (en) | 2001-01-15 |
EP0736163B1 (en) | 2001-01-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3010966C2 (en) | ||
EP0276233A1 (en) | Process for separating volatile substances | |
DE1567262A1 (en) | Method and device for treating sugar cane | |
DE3128596A1 (en) | DEVICE FOR THE TREATMENT OF FLUFFY OR GRAINED MATERIAL WITH GASES OR STEAMERS IN CONTINUOUS COUNTERFLOW OPERATION | |
DE102006012577A1 (en) | Drying device for tobacco | |
EP0167939B1 (en) | Device for the treatment of material to separate the fluid parts from the solid parts | |
DE3249265T1 (en) | METHOD AND SYSTEM FOR RELEASING CRUSTENTS | |
EP0736163B1 (en) | Process and device for the extraction of water from fresh grass and the final drying of the pre-treated grass | |
EP0068221B1 (en) | Process and apparatus for treating unshelled shell fruits, particularly cocoa beans | |
DE2708168C2 (en) | Device for the continuous treatment of material, in particular for continuous sterilization | |
CH664070A5 (en) | METHOD AND DEVICE FOR REDUCING THE ADHESIVITY OF TOBACCO LEAVES IN BALES. | |
DE3012949A1 (en) | METHOD AND DEVICE FOR ALKALIZING AND PASTEURIZING COCOA BEANS | |
DE1942461B2 (en) | Device for dewatering masses at low temperature on an endless conveyor belt | |
CH682039A5 (en) | ||
DE3406370A1 (en) | Process for treating shell fruits | |
DE3112994A1 (en) | Process and apparatus for pasteurisation-sterilisation, deacidification and alkalisation of cocoa juice | |
DE1502279A1 (en) | Method and device for making fodder cakes from field forage | |
DE817573C (en) | Device for treating, in particular for fermenting tobacco in a vacuum | |
DE3204690C2 (en) | Drying device for powdery or granular pharmaceutical goods | |
DE4143416C2 (en) | Process for preparing and preserving feed materials and / or moist crops and device for carrying out this process | |
DE693792C (en) | Device for drying food | |
DE2131188A1 (en) | Process for separating fat from meat or fish material | |
DE7202548U (en) | DEVICE FOR PROCESSING MUD | |
DE561994C (en) | Plant for the continuous production of fish meal | |
DE2947746A1 (en) | Drying appts. for wet grass - heats grass in steam atmosphere before squeezing some of moisture out |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE FR GB IT LI NL |
|
17P | Request for examination filed |
Effective date: 19961017 |
|
17Q | First examination report despatched |
Effective date: 19980303 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE FR GB IT LI NL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20010110 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT Effective date: 20010110 Ref country code: GB Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20010110 |
|
REF | Corresponds to: |
Ref document number: 198663 Country of ref document: AT Date of ref document: 20010115 Kind code of ref document: T |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REF | Corresponds to: |
Ref document number: 59508956 Country of ref document: DE Date of ref document: 20010215 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: HANS RUDOLF GACHNANG PATENTANWALT |
|
ET | Fr: translation filed | ||
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 20010110 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20011031 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
BERE | Be: lapsed |
Owner name: DUSS FRANZ Effective date: 20011031 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20031229 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20031230 Year of fee payment: 9 Ref country code: DE Payment date: 20031230 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20031231 Year of fee payment: 9 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041016 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041031 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050503 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050630 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |