EP1532396A1 - Rostelement für einen rost einer abfallverbrennungsanlage - Google Patents
Rostelement für einen rost einer abfallverbrennungsanlageInfo
- Publication number
- EP1532396A1 EP1532396A1 EP03753359A EP03753359A EP1532396A1 EP 1532396 A1 EP1532396 A1 EP 1532396A1 EP 03753359 A EP03753359 A EP 03753359A EP 03753359 A EP03753359 A EP 03753359A EP 1532396 A1 EP1532396 A1 EP 1532396A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grate
- carriage
- blocks
- movable
- block
- 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
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H7/00—Inclined or stepped grates
- F23H7/06—Inclined or stepped grates with movable bars disposed parallel to direction of fuel feeding
- F23H7/08—Inclined or stepped grates with movable bars disposed parallel to direction of fuel feeding reciprocating along their axes
Definitions
- the invention relates to a grate element for a grate of a waste incineration plant with a plurality of rows of grate blocks arranged one behind the other.
- Conventional inclined feed grates for waste incineration plants have grate elements with a plurality of grate block rows arranged one behind the other, a movable grate block row being followed by a fixed grate block row.
- the moveable rows of grate blocks are assigned to a grate trolley by which they are moved back and forth (CH 585 372). The waste is mixed and stirred in the direction of transport.
- a push-back grate is known from the prior art, which is described in a large number of patents, for example in DE 525221 and DE 1099117.
- Such a push-back grate is an inclined grate with alternately fixed and movable grate block rows.
- the lower layers of the waste to be incinerated are pushed towards the beginning of the grate by the grate blocks of the movable grate block rows, the upper layers moving towards the end of the grate.
- the waste is pushed away against the direction of transport, so that the waste is piled up at the beginning of the grate and is brought down by gravity, which in part happens due to uncontrolled slipping.
- EP 1 001 218 describes a water-cooled combustion grate which consists of a combination of a feed and a push-back grate, both of which have water-cooled grate plates, at least every second of which is designed to be movable.
- a longitudinal grate is understood to be a grate that extends in the transverse direction, i.e. horizontal to the direction of transport, has several movable and fixed longitudinal tracks that extend over the entire length of the grate.
- a longitudinal path has a plurality of grate blocks arranged one behind the other. Each fixed longitudinal path is followed by a movable longitudinal path.
- the longitudinal gratings described have several bars that enable the movement of the longitudinal tracks in the transport direction.
- the longitudinal grate is a pure conveying unit and only enables uncontrolled transport of the waste. Since the movement of the longitudinal tracks extends over the entire length of the grate, the transport speed and thus the operating conditions cannot be regulated independently in each combustion zone.
- a stair grate is made up of several grate elements in the direction of transport, usually three until six grate elements are arranged one behind the other.
- a stair grate can consist of one to five grate tracks.
- Each grate element has a plurality of rows of grate blocks arranged one behind the other in the direction of transport, the rows of grate blocks being fixed or movable. This means that, in contrast to the longitudinal grate, the grate block rows and not the longitudinal tracks are movable in the stair grate with fixed and movable grate block rows.
- a row of grate blocks is formed by several, for example 16 to 30 grate blocks.
- the grate blocks can be water or air cooled.
- the grate blocks are hung next to each other on a block holder tube and clamped together using a pull rod.
- Each grate block has a foot that rests on the surface of the grate block that follows in the transport direction. When moving forward, the foot of the grate block lying on it sweeps over the surface of the grate block underneath in the direction of transport.
- the object of the present invention is to provide a grate element in which the waste is mixed intensively and continuously and the conveying takes place in a controlled manner.
- a first part of the grate blocks of a movable row of grate blocks is assigned to a first grate carriage and a second part of the grate blocks is assigned to a second grate carriage
- the process according to the invention Grate element is equipped with two grate cars. Due to the division of the grate blocks of a grate block row into two different grate carriages, the mobility of the first part of the grate blocks is independent of the mobility of the second part of the grate blocks. As a result, some of the grate blocks move backwards while the other part of the grate blocks move forward. The independent mobility of the grate blocks results in additional lateral mixing.
- the grate element according to the invention is less susceptible to malfunction, has a long service life and service life and guarantees an economical driving style.
- the movement pattern of the grate element can therefore be set differently depending on the type of waste.
- the distribution of the individual grate blocks in width to the corresponding grate car is advantageously carried out in grate block groups with five or seven grate blocks. A larger or a smaller division or an even division would also be conceivable.
- the surface area of the waste to be incinerated is increased by the optimal circulation. The combustion process is more complete and faster.
- the grate element according to the invention is therefore economically and ecologically very advantageous.
- the first and the second grate carriage advantageously have a guide device with interacting guide elements.
- the guide elements ensure that the two grate carriages move on the tracks intended for them and do not move apart from each other.
- Such guide elements can, for example, be guide grooves and guide lugs, but other guide elements known to the person skilled in the art are also conceivable.
- the first and the second grate car have mutually independent drive devices.
- the first and the second grate carriage may have a mechanically coupled opposing drive device.
- Preferred drive devices are hydraulic, pneumatic or electrical actuators.
- a cylinder-piston unit is particularly preferred.
- Independent control of the two grate trolleys is possible individually.
- the first grate carriage has two drive devices and the second grate carriage has one drive device. On the one hand, this enables the first grate wagon (primary wagon) to require smaller drive devices that enable simple and quick replacement during operation.
- by a side and a middle Arrangement of the drive devices on the first or the second grate carriage evenly distributes the forces exerted on the grate element.
- first and the second grate car are clocked in reverse. This means that if the first grate carriage makes a forward movement, the second grate carriage makes a backward movement.
- first and the second grate carriage are clocked identically, which means that the first and the second grate carriage are moved simultaneously over different movement distances.
- one to seven, particularly preferably three to five, grate blocks lying directly next to one another, which together form a grate block group, have the same direction of movement, i.e. they are assigned to the same grate car. This ensures an optimal mixing effect.
- a fixed row of grate blocks is followed by a row of movable grate blocks in the transport direction.
- Such an embodiment is preferably chosen when very intensive mixing is necessary.
- a grate of a waste incineration plant preferably has at least one grate element according to the invention. Another preferred variant is that all grate elements are grate elements according to the invention.
- Fig. 1 shows an embodiment of a first
- Fig. 2 shows an embodiment of a second
- FIG. 4 shows the grate car shown in FIG. 3 in a bottom view
- Fig. 5 shows a first grate car with the first
- Fig. 6 shows a second grate with second
- FIGS. 5 and 6 shows the grate car shown in FIGS. 5 and 6 in an end position
- a first grate carriage 5 is shown in FIG. 1.
- the grate carriage has two parallel first longitudinal members 9 with a hollow profile and first transverse members 11 arranged at right angles thereto with a U-profile open towards the bottom.
- the crossbeams 11 are designed to support brackets with block holding tube sections for a first part of the grate blocks of the movable grate block rows.
- the first cross members 11 are preferably arranged equidistant from one another.
- the first grate carriage 5 is moved back and forth via rollers 15 on running surfaces 17 of a rail element 19.
- the end position of the cylinder 27 immediately represents the rear and the front stop and thus defines the end position of the grate carriage 5.
- the first grate carriage 5 is driven by means of a cylinder-piston unit 25.
- a piston 29 is located inside the cylinder 27 first longitudinal member 9 connected via a linkage 33 to a piston rod 31, which in turn is connected to the piston 29.
- the guide grooves 23 are intended to interact with four guide lugs of a second grate carriage.
- the first grate carriage 5 is intended to move a first part of the movable grate blocks.
- FIG. 2 shows the second grate carriage 35 with two parallel second longitudinal beams 37 which run in the transport direction and have an L-profile.
- the second side members 37 there are second cross members 39 with a U-profile open towards the bottom, which are intended to support brackets with block holder tubes for a second part of the grate blocks of the movable grate block rows.
- the second cross members 39 are preferably arranged equidistant from one another.
- the second grate carriage 35 also has on the outer surface of the second longitudinal members 37 two guide elements in the form of a guide lug 41, which are intended to interact with the four guide grooves 23 of the first grate carriage 5.
- the second grate carriage 35 is driven by a second cylinder-piston unit 43.
- the cylinder 27 is coupled via a piston rod 31 to a third longitudinal member 45 with a rectangular hollow profile which is connected to the second cross members 39.
- the cross members have U-shaped recesses 47 in which the third longitudinal member 45 is arranged. .
- the first grate carriage 5 and the second grate carriage 35 are shown in FIG.
- the four guide grooves 23 of the first grate carriage 5 interact with the guide lugs 41 of the second grate carriage 35.
- the first cross members 11 are alternating with the second cross members 39 of the second Rostwagens 35 arranged.
- the first cylinder-piston unit 25 of the first grate carriage 5 is independent of the second cylinder-piston unit 43.
- Figure 4 shows the first grate 5 and the second grate 35 from below.
- the two first longitudinal members 9 of the first grate carriage 5 have cutouts 49 for the rollers 15 on the underside.
- the rail elements 19 serve to support the first grate carriage 5 on a grate trough.
- the upper side of the wedge-shaped rail element 19 serves as a running surface 17 for the rollers 15.
- the piston rod 31 of the first cylinder-piston unit 25 is connected to the longitudinal beam 9 via a linkage 33 attached to the underside of the first longitudinal beam 9.
- the piston rod 31 of the second cylinder-piston unit 43 is connected to the third side member 45 of the second grate carriage 35 via a linkage 33.
- the guide grooves 23 cooperate with the guide lugs 41 and ensure that the second grate carriage 35 moves on a predetermined path.
- the first grate carriage 5 is shown in FIG.
- First s-shaped brackets 51 are arranged on the first cross members 11.
- the first block-holding tube sections 53 are arranged on the first S-shaped brackets 51. These are designed to support a first part of the grate blocks of the movable grate block rows. Three to four grate blocks are each assigned to a first block holder tube section 53, these grate blocks together forming a grate block group.
- the first block holder tube sections 53 only extend over part of the first cross member 11.
- Preferably three to four first consoles 51 are arranged on a first cross member 11.
- stationary brackets 55 with the stationary block holding tubes 57 arranged thereon are shown schematically.
- the second grate carriage 35 is shown in FIG.
- Second brackets 59 are arranged on the second cross members 39.
- Second block holder tube sections 61 are arranged on the second s-shaped brackets 59. These are designed to support a second part of the grate blocks of the movable grate block rows.
- the second brackets 59 are arranged on the second cross members 39 in a mirror-inverted manner to the first brackets 51 on the first cross members 11.
- the second block support tube sections 61 extend only over part of the second cross member 39.
- Three to four second brackets 59 with block support tube sections 61 are preferably arranged on a second cross support 39.
- the stationary brackets 55 with the stationary block holding tubes 57 arranged thereon are shown schematically.
- the first and second grate carriages 5, 35 shown in FIGS. 5 and 6 are shown assembled in FIG.
- the grate carriages 5, 35 are in an end position, that is to say the rollers 15 of the first grate carriage 5 are at the end of the running surface 17.
- the first brackets 51 alternate with the first block holding tube sections 53 with the second brackets 59 with the second Block holder pipe sections 61.
- the brackets 51, 59 ', 51', 59 '' of the movable grate blocks arranged in a line in the transport direction are alternately the first or the second grate carriage 5.35 assigned.
- the consoles it is also conceivable for the consoles to be assigned a grate carriage to the movable grate blocks arranged in a line in the transport direction.
- Figure 8 shows the embodiment shown in Figure 7 in the central position, i.e. the rollers 15 of the first grate carriage 5 are located on the center of the running surface 17.
- the axis of all the block holder tube sections 53, 61 of the movable grate block rows 63 and the block holder pipes 51 of the fixed grate block rows 65 are in the position shown in one plane.
- FIG. 9 shows an embodiment of the grate element 1 according to the invention in the W position.
- fixed rows of grate blocks 65 are arranged alternately to movable grate block rows 63.
- Three or four grate blocks 67, which form a grate block group 70, are respectively arranged on the first block holding tube sections 53 of the first grate carriage 5.
- the grate block groups of the same grate block row are alternately assigned to the first and the second grate carriage 5.35. Due to the forward and backward movement of the first and the second grate carriage, the grate block group 70a moves backwards and the grate block group 70b forwards.
- the waste lying on the surface of the grate block group 70a is pushed away by the grate blocks 67a of the fixed grate block row from the grate block group 70a and is circulated in the transport direction and laterally, which leads to the optimal circulation.
- the grate block group 70b is shifted forward and pushes the waste away on the surface of the fixed grate block row.
- the grate block groups 70a, 70b 'of the movable grate blocks arranged in a line in the transport direction are alternately assigned to the first or the second grate carriage.
- FIG. 10 shows the embodiment of the grate element according to the invention shown in FIG. 9 in the other end position.
- the grate block groups which are shown at the rear in FIG. 9 are now at the front, while those which are shown at the front are now arranged at the rear.
- FIG. 11 shows a further embodiment of the grate element according to the invention in the X position.
- fixed rows of grate blocks 65 are arranged alternately to movable rows of grate blocks 63.
- Three or four grate blocks 67, which form a grate block group 70, are respectively arranged on the first block holding tube sections 53 of the first grate carriage 5.
- the grate block groups 70a, 70a 'of the same grate block row are alternately assigned to the first and the second grate carriage.
- the grate blocks of the movable grate blocks arranged in a line in the transport direction are each assigned to the first or the second grate carriage.
- FIG. 12 shows the embodiment of the grate element 1 according to the invention shown in FIG. 11 in the other end position.
- the grate block groups which are shown at the rear in FIG. 11 are now at the front, while those which are shown at the front are now arranged at the rear.
- FIG. 13 shows a further embodiment of the grate element 1 according to the invention, which enables operation as is known hitherto.
- fixed rows of grate blocks 65 are arranged alternately to movable rows of grate blocks 63.
- Three or four grate blocks 67, which form a grate block group 70, are respectively arranged on the first block holding tube sections 53 of the first grate carriage 5.
- the grate block groups of the same grate block row are alternately assigned to the first and the second grate carriage.
- the first and the second grate carriage move in such a way that the grate blocks of both grate carriages move in the same direction at the same time.
- FIG. 14 shows the embodiment of the grate element according to the invention shown in FIG. 13 in the other end position.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
- Gasification And Melting Of Waste (AREA)
- Baking, Grill, Roasting (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03753359A EP1532396B1 (de) | 2002-08-29 | 2003-08-22 | Rostelement für einen rost einer abfallverbrennungsanlage |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02405738A EP1394468A1 (de) | 2002-08-29 | 2002-08-29 | Rostelement für einen Rost einer Abfallverbrennungsanlage |
EP02405738 | 2002-08-29 | ||
PCT/EP2003/009323 WO2004025181A1 (de) | 2002-08-29 | 2003-08-22 | Rostelement für einen rost einer abfallverbrennungsanlage |
EP03753359A EP1532396B1 (de) | 2002-08-29 | 2003-08-22 | Rostelement für einen rost einer abfallverbrennungsanlage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1532396A1 true EP1532396A1 (de) | 2005-05-25 |
EP1532396B1 EP1532396B1 (de) | 2007-10-24 |
Family
ID=31198010
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02405738A Withdrawn EP1394468A1 (de) | 2002-08-29 | 2002-08-29 | Rostelement für einen Rost einer Abfallverbrennungsanlage |
EP03753359A Expired - Lifetime EP1532396B1 (de) | 2002-08-29 | 2003-08-22 | Rostelement für einen rost einer abfallverbrennungsanlage |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02405738A Withdrawn EP1394468A1 (de) | 2002-08-29 | 2002-08-29 | Rostelement für einen Rost einer Abfallverbrennungsanlage |
Country Status (13)
Country | Link |
---|---|
US (1) | US7424856B2 (de) |
EP (2) | EP1394468A1 (de) |
JP (1) | JP4336997B2 (de) |
KR (1) | KR100700788B1 (de) |
CN (1) | CN1316199C (de) |
AT (1) | ATE376651T1 (de) |
AU (1) | AU2003271563A1 (de) |
DE (1) | DE50308469D1 (de) |
DK (1) | DK1532396T3 (de) |
ES (1) | ES2294315T3 (de) |
NO (1) | NO20051574L (de) |
TW (1) | TWI307392B (de) |
WO (1) | WO2004025181A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008056468B3 (de) * | 2008-11-04 | 2010-04-29 | Fuguma Gmbh Maschinenbau Und Kraftwerkstechnik | Rostplattenschubrost für Verbrennungsanlagen |
ITPV20100006A1 (it) * | 2010-04-09 | 2011-10-10 | Davide Raveri | Griglia mobile alternata |
CN104456573A (zh) * | 2014-12-11 | 2015-03-25 | 杭州新世纪能源环保工程股份有限公司 | 适应高水分的往复式二段垃圾焚烧炉 |
US10746401B2 (en) * | 2016-07-07 | 2020-08-18 | Babcock & Wilcox Vølund A/S | Movable grate for a furnace |
DE102022107219A1 (de) | 2022-03-28 | 2023-09-28 | Hitachi Zosen Inova Steinmüller GmbH | Verfahren zum Betreiben eines Schubrosts und Schubrost |
KR102517623B1 (ko) * | 2022-05-24 | 2023-04-04 | 에스씨이엔이 주식회사 | 공기접촉면적 향상을 위한 유동화격자 구동장치 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE525221C (de) | 1928-04-17 | 1931-05-20 | Josef Martin | Schuerrost mit geneigt Iiegenden, zum Berganfoerdern des Brennstoffes hin und her bewegten Schuerkolben |
DE1099117B (de) | 1953-01-10 | 1961-02-09 | Anna Martin Geb Schuth | Einrichtung zur Verbrennung von Hausmuell |
FR2265041B1 (de) * | 1974-03-18 | 1978-01-13 | Carbonisation Entr Ceram | |
CH585372A5 (de) | 1975-03-17 | 1977-02-28 | Von Roll Ag | |
US4170183A (en) * | 1977-10-20 | 1979-10-09 | Energy Generation, Inc. | Incinerating method and apparatus having selective, controlled movement of materials during combustion |
FR2614395B1 (fr) * | 1987-04-27 | 1989-07-21 | Traitement Indl Residus Urbain | Foyer de chaudiere, notamment pour dechets urbains, a grille composee de barreaux alternativement fixes et mobiles a va-et-vient, a souplesse de reglage accrue |
JPH0717937Y2 (ja) | 1990-05-21 | 1995-04-26 | 日本鋼管株式会社 | 横型焼却炉の火格子構造 |
DE59900534D1 (de) | 1998-11-10 | 2002-01-24 | Doikos Investments Ltd | Wassergekühlter Verbrennungsrost, sowie Verfahren zum Verbrennen von Kehricht auf demselben |
-
2002
- 2002-08-29 EP EP02405738A patent/EP1394468A1/de not_active Withdrawn
-
2003
- 2003-08-22 ES ES03753359T patent/ES2294315T3/es not_active Expired - Lifetime
- 2003-08-22 CN CNB038203804A patent/CN1316199C/zh not_active Expired - Fee Related
- 2003-08-22 JP JP2006534513A patent/JP4336997B2/ja not_active Expired - Lifetime
- 2003-08-22 AU AU2003271563A patent/AU2003271563A1/en not_active Abandoned
- 2003-08-22 US US10/525,565 patent/US7424856B2/en not_active Expired - Fee Related
- 2003-08-22 DK DK03753359T patent/DK1532396T3/da active
- 2003-08-22 WO PCT/EP2003/009323 patent/WO2004025181A1/de active IP Right Grant
- 2003-08-22 DE DE50308469T patent/DE50308469D1/de not_active Expired - Lifetime
- 2003-08-22 EP EP03753359A patent/EP1532396B1/de not_active Expired - Lifetime
- 2003-08-22 AT AT03753359T patent/ATE376651T1/de not_active IP Right Cessation
- 2003-08-22 KR KR1020057003419A patent/KR100700788B1/ko not_active IP Right Cessation
- 2003-08-26 TW TW092123470A patent/TWI307392B/zh active
-
2005
- 2005-03-29 NO NO20051574A patent/NO20051574L/no not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO2004025181A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1532396B1 (de) | 2007-10-24 |
KR100700788B1 (ko) | 2007-03-28 |
ES2294315T3 (es) | 2008-04-01 |
EP1394468A1 (de) | 2004-03-03 |
CN1316199C (zh) | 2007-05-16 |
AU2003271563A1 (en) | 2004-04-30 |
TWI307392B (en) | 2009-03-11 |
DK1532396T3 (da) | 2008-02-18 |
US7424856B2 (en) | 2008-09-16 |
JP4336997B2 (ja) | 2009-09-30 |
WO2004025181A1 (de) | 2004-03-25 |
DE50308469D1 (de) | 2007-12-06 |
KR20050039866A (ko) | 2005-04-29 |
NO20051574L (no) | 2005-05-27 |
CN1678870A (zh) | 2005-10-05 |
US20050257723A1 (en) | 2005-11-24 |
TW200404981A (en) | 2004-04-01 |
JP2007524063A (ja) | 2007-08-23 |
WO2004025181A8 (de) | 2005-06-02 |
PL375396A1 (en) | 2005-11-28 |
ATE376651T1 (de) | 2007-11-15 |
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