EP1947949A1 - Arrangement for leading humid air into a heat treatment oven like into a roast oven for bakery products - Google Patents
Arrangement for leading humid air into a heat treatment oven like into a roast oven for bakery productsInfo
- Publication number
- EP1947949A1 EP1947949A1 EP06794091A EP06794091A EP1947949A1 EP 1947949 A1 EP1947949 A1 EP 1947949A1 EP 06794091 A EP06794091 A EP 06794091A EP 06794091 A EP06794091 A EP 06794091A EP 1947949 A1 EP1947949 A1 EP 1947949A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oven
- unit
- arrangement
- arrangement according
- water
- 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.)
- Withdrawn
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 14
- 235000015173 baked goods and baking mixes Nutrition 0.000 title claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000005507 spraying Methods 0.000 claims abstract description 6
- 238000001704 evaporation Methods 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 description 5
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A21—BAKING; EDIBLE DOUGHS
- A21B—BAKERS' OVENS; MACHINES OR EQUIPMENT FOR BAKING
- A21B3/00—Parts or accessories of ovens
- A21B3/04—Air-treatment devices for ovens, e.g. regulating humidity
-
- A—HUMAN NECESSITIES
- A21—BAKING; EDIBLE DOUGHS
- A21B—BAKERS' OVENS; MACHINES OR EQUIPMENT FOR BAKING
- A21B1/00—Bakers' ovens
- A21B1/42—Bakers' ovens characterised by the baking surfaces moving during the baking
- A21B1/48—Bakers' ovens characterised by the baking surfaces moving during the baking with surfaces in the form of an endless band
Definitions
- the invention relates to an arrangement to conduct humidified air into a heat treatment oven of goods, as for instance into a bakery oven of bakery products, which oven comprises a conveying track, along which the products are conveyed to the oven, arrangements of holes fitted in the oven, through which moving of products into the oven and out from it is carried out by means of said track, and an equipment heating the oven, as a gas burner.
- the solution presented above also enlarges the necessary oven volume. If in the solution water is fed to the channel portion in order to get evaporated, it reduces the temperature of return air strongly. If in the channel portion steam is added to the air, a separate steam generator is needed somewhere else, from where the steam is conducted to the channel portion.
- the humidification arrangement according to the invention is characterized in that the arrangement includes a humidification unit mountable/after-mountable outside the oven, comprising a heated massive evaporator unit and nozzle units spraying water into it, whereby in the outer unit of said oven steam is produced, and steam is arranged to be conducted together with the conveying track through the same hole into the oven.
- the advantage of the invention is that the humidification can be directed to a certain part in the oven, especially to the forepart, and if needed, also to the goods in the oven itself.
- steam is conducted, in other words humidifed air from the inlet hole of the oven, it has at once in the forepart of the oven an effective humidification effect on the relatively cold bakery products in the forepart of the oven and even later on still in the direction of the oven.
- Humidity does not escape from the oven, because it is fed from the inlet hole. Due to humidity, the surface of goods closes, at least by bakery products, and prevents humidity from vanishing off the inside of goods.
- the humidification arrangement is formed as a movable unit, it can be moved or moved afterwards into connection with an oven that needs it. By means of the solution a built-in in equipment in the oven can be replaced.
- Fig. 1 presents an oven seen from the side.
- Fig. 2 presents a massive humidification unit seen from the side.
- Figure 1 shows a bakery oven 1 of bakery products through which products 3 to be baked move along conveying track 2. In both ends of oven 1 there are arrangements of holes, by way of which products 3 can by means of track 2 move into and out from the oven. The heating of the oven is taken care of, for instance, by burner 11, which uses fluid gas.
- Figure 1 shows a humidification unit placed with its whole breadth, in front of the oven above track 2, which is a separate mountable unit or as an afterwards mountable unit to replace former humidification equipment in the oven.
- FIG. 1 shows the location of jets 6 in humidification unit 4 outside the oven, which is at the same time also a channel portion for return air from the oven along channel, which air is by means of blower 8 returned to the oven through the inlet hole in the oven.
- Humidification unit 4 is a of channel extension for said return air. New air is taken under control through branch channel 9. The flow arrangement is so made that the air humidified through the inlet hole of the oven strives into the oven. Most suitably the oven is kept under low pressure.
- Blower 8 is as to its capability adjustable and the intake quantity of new air from channel 9 is adjusted, for instance, by means of a damper shown in figure 1.
- Figure 2 shows a massive evaporator unit 5 with the construction opened, which construction comprises a rear board 12, which has grooves for heating elements 10, further a massive front board 13, towards which the water jets are directed.
- the construction is in use kept tilted.
- the front board 13 comprises certain transverse levels, which are, for instance, only step surfaces, where water drops do not stay for long.
- the step surfaces there can situated grooves 14, whereby water drops stay longer on the steps.
- the grooves are in one embodiment from their one end or both ends dropping water downwards, and under the unit there is a collecting basin, into which not-evaporated drops fall.
- figure 2 The construction of figure 2 is collected to a unit in placing the heating elements in the grooves of the rear board 12 and the front board 13 is connected tightly to the rear board.
- the front or rear board or both of them are, for instance of steel or stone, so as to get enough mass for them. Also cast iron can come into question as well as ceramic materials.
- a sensor that measures information of humidity can be placed and on basis of it an adjusting device to control the spraying. Since the nozzles of jets 6 work at best only on a certain pressure and flow area, the most suitable way to adjust them is adjustment of the length of the spraying cycle. Heating elements 5, as electric resistances are most suitably controlled by means of a thermostat sunk into the front board.
- the equipment is as a separate unit easily mounted in front of the oven. Easy access to the equipment only opening the capsular wall in the front.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Manufacturing And Processing Devices For Dough (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20050957A FI20050957L (en) | 2005-09-26 | 2005-09-26 | Arrangements for directing moist air into a heat treatment furnace, such as e.g. an oven for bakery products |
PCT/FI2006/000315 WO2007034028A1 (en) | 2005-09-26 | 2006-09-26 | Arrangement for leading humid air into a heat treatment oven like into a roast oven for bakery products |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1947949A1 true EP1947949A1 (en) | 2008-07-30 |
EP1947949A4 EP1947949A4 (en) | 2008-09-24 |
Family
ID=35151410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06794091A Withdrawn EP1947949A4 (en) | 2005-09-26 | 2006-09-26 | Arrangement for leading humid air into a heat treatment oven like into a roast oven for bakery products |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1947949A4 (en) |
FI (1) | FI20050957L (en) |
WO (1) | WO2007034028A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3016517B1 (en) * | 2013-07-05 | 2017-08-30 | Revent International AB | A steam generating system |
CN108244160B (en) * | 2018-02-13 | 2023-05-12 | 山西海玉园食品有限公司 | Stone cake production line |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB235870A (en) * | 1924-06-17 | 1926-03-04 | Friedrich Kuhtz | Improvements in continuously operating baking ovens |
GB248315A (en) * | 1925-02-28 | 1926-06-24 | Heinrich Roser | Improvements in continuously operating baking ovens |
US1878519A (en) * | 1930-08-07 | 1932-09-20 | Petersen Oven Co | Humidifier for bake ovens |
DE604335C (en) * | 1931-09-09 | 1934-10-19 | ||
FR1037735A (en) * | 1951-05-26 | 1953-09-22 | Fours Ponton Lemeunier | Improvements in bakery ovens |
GB818391A (en) * | 1956-03-28 | 1959-08-19 | Thomas Collins And Company Ltd | Improvements in travelling ovens |
FR2316874A1 (en) * | 1975-07-10 | 1977-02-04 | Voegtlin Rene | Multiple-stage bakery tunnel oven - with conveyor belts and supports for the fermented dough and the baked loaves at the ends |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1819231A (en) * | 1930-10-23 | 1931-08-18 | Crawford Oven Company | Baking oven |
US1878353A (en) * | 1931-09-28 | 1932-09-20 | Watter Max | Steam generator and sprayer for bakery ovens |
SE408256C (en) * | 1977-11-29 | 1981-07-13 | Tipe Revent Ab | CONVECTION OVEN WITH WATER-IRRIGABLE, ACCUMULATED HEAT BODY |
EP0835057A1 (en) * | 1996-03-12 | 1998-04-15 | Aktiebolaget Electrolux | A generator for steam |
-
2005
- 2005-09-26 FI FI20050957A patent/FI20050957L/en unknown
-
2006
- 2006-09-26 EP EP06794091A patent/EP1947949A4/en not_active Withdrawn
- 2006-09-26 WO PCT/FI2006/000315 patent/WO2007034028A1/en active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB235870A (en) * | 1924-06-17 | 1926-03-04 | Friedrich Kuhtz | Improvements in continuously operating baking ovens |
GB248315A (en) * | 1925-02-28 | 1926-06-24 | Heinrich Roser | Improvements in continuously operating baking ovens |
US1878519A (en) * | 1930-08-07 | 1932-09-20 | Petersen Oven Co | Humidifier for bake ovens |
DE604335C (en) * | 1931-09-09 | 1934-10-19 | ||
FR1037735A (en) * | 1951-05-26 | 1953-09-22 | Fours Ponton Lemeunier | Improvements in bakery ovens |
GB818391A (en) * | 1956-03-28 | 1959-08-19 | Thomas Collins And Company Ltd | Improvements in travelling ovens |
FR2316874A1 (en) * | 1975-07-10 | 1977-02-04 | Voegtlin Rene | Multiple-stage bakery tunnel oven - with conveyor belts and supports for the fermented dough and the baked loaves at the ends |
Non-Patent Citations (1)
Title |
---|
See also references of WO2007034028A1 * |
Also Published As
Publication number | Publication date |
---|---|
FI20050957L (en) | 2007-03-27 |
WO2007034028A1 (en) | 2007-03-29 |
FI20050957A0 (en) | 2005-09-26 |
EP1947949A4 (en) | 2008-09-24 |
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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 |
|
17P | Request for examination filed |
Effective date: 20080425 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 20080827 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: A21B 3/04 20060101AFI20070530BHEP Ipc: A21B 1/48 20060101ALI20080821BHEP |
|
17Q | First examination report despatched |
Effective date: 20090120 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20090401 |