EP1065441A1 - Gate arrangement for straw firing plant - Google Patents

Gate arrangement for straw firing plant Download PDF

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Publication number
EP1065441A1
EP1065441A1 EP00610067A EP00610067A EP1065441A1 EP 1065441 A1 EP1065441 A1 EP 1065441A1 EP 00610067 A EP00610067 A EP 00610067A EP 00610067 A EP00610067 A EP 00610067A EP 1065441 A1 EP1065441 A1 EP 1065441A1
Authority
EP
European Patent Office
Prior art keywords
gate
gate member
opening
arrangement according
gate arrangement
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
Application number
EP00610067A
Other languages
German (de)
French (fr)
Other versions
EP1065441B1 (en
Inventor
Jens Jorgen Svendsen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bioener ApS
Original Assignee
FLS Miljo AS
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Filing date
Publication date
Application filed by FLS Miljo AS filed Critical FLS Miljo AS
Priority to DK00610067T priority Critical patent/DK1065441T3/en
Publication of EP1065441A1 publication Critical patent/EP1065441A1/en
Application granted granted Critical
Publication of EP1065441B1 publication Critical patent/EP1065441B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/10—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of field or garden waste or biomasses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44—Details; Accessories
    • F23G5/442—Waste feed arrangements
    • F23G5/444—Waste feed arrangements for solid waste
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus

Definitions

  • the present invention relates to a gate arrangement for the conveying of straw bales along a transport path in a straw firing plant, comprising a housing with a gate opening having a top surface, a bottom surface and two side surfaces as well as a gate member with a top edge, a bottom edge and two side edges, the gate member being movable between an open position and a closed position in which the gate member substantially covers the gate opening, the gate arrangement comprising a tilting gate, the gate member being pivotally connected with said housing in a hinge connection at the side surfaces of the gate opening with a substantially horizontal axis of rotation at right angles to the said transport path.
  • Such gate arrangements used, e.g., as lock gates in straw firing plants are conventionally designed as lifting gates, the gate member in the open position being received in the structure located below the transport path, and the top edge of the gate member being located substantially in alignment with the transport path and thus the bottom surface of the gate opening.
  • the gate member is moved upwards through a slot in the bottom surface of the gate opening until the gate member in the closed position covers the entire gate opening, the top edge of the gate member bearing against abutment surfaces at the top surface of the gate opening.
  • the object of the invention is to provide a gate arrangement of the type mentioned in the introduction that ensures a reliable function of the gate arrangement.
  • the tilting gate of the gate arrangement By designing the tilting gate of the gate arrangement with a curved gate member, it can be tilted up to assume the open position in a simple manner.
  • the slot in the transport path can possibly be completely omitted, whereby the problem of down-falling elements does not arise, or it can be retained, the elements then being able to fall down for collection further down in the structure without conflicting with the gate member.
  • the design has a space-saving function, as the entire structure at the gate arrangement can be made lower than is the case in existing plants.
  • the gate member is shaped like a cylinder surface, which is expressed in that the side edge of the gate member is formed as a circular arc. This results in further saving of space, particularly if the hinge connection is placed so that the axis of rotation is located at such distance from the gate member surface as corresponds to the radius of curvature for the said surface.
  • sealing members may be arranged in connection with the abutment surfaces of the gate member against the top, bottom and side surfaces of the gate opening for engagement with corresponding members at the gate opening.
  • the gate arrangement is preferably operated by means of a compressed-air cylinder, and in a suitable embodiment opening of the gate arrangement is facilitated by a counterbalance device.
  • the gate arrangement shown in the drawing is designed as a tilting gate arranged in a housing 1 with an entry end 2 for straw bales, now shown, conveyed along a transport path that extends through the housing 1 between a storage place, such as a straw barn, and a boiler in a straw firing plant.
  • a gate opening with a top surface 3, a bottom surface 4 and two side surfaces 5 is formed in the entry end 2, and in the closed position of the gate arrangement shown the gate opening is substantially covered by a gate member 6 which, at a top edge 6a, a bottom edge 6b and two side edges 6c bears against two abutment surfaces at the top surface 3, the bottom surface 4 and the side surfaces 5, respectively, in the manner described in more detail in the following.
  • the gate member 6 is connected with the housing 1 at the side surfaces 5 of the gate opening by means of a hinge connection 7 which, at each side, comprises stub shafts 8 pivotally journalled in bearings 9.
  • Each stub shaft 8 is mounted on one end of an associated arm 10 connected at an opposite end with the gate member 6 so that the hinge connection has an axis of rotation 11 that is substantially horizontal and extends at right angles to the transport path.
  • the gate member 6 is shaped like a cylinder surface, the side edge 6c being formed as a circular arc.
  • the arms 10 have a length so that the axis of rotation 11 is located at a distance from the cylinder surface of the gate member corresponding to the radius of the circular arc. Other curved surface shapes are also imaginable.
  • the tilting gate has a counterbalance device comprising a counterbalance 12 arranged one on either side of the housing 1 and being built of individual balance members and fastened to one end of a rod member 13 which is connected at the opposite end with the stub shaft 8 of the hinge connection 7.
  • one end of a compressed-air cylinder 14 is pivotally connected with fittings, not shown in detail, on either side of the housing 1, and at the opposite end each compressed-air cylinder 14 is also pivotally connected with the rod member 13.
  • the gate member 6 has sealing members 15-18 for engagement with corresponding members in the gate opening, as is most clearly shown in Figs. 3-5.
  • the sealing member is formed as a cross-sectionally, substantially L-shaped fitting 15 with a leg projecting downwards along the outer surface of the gate member and, in the closed position of the gate arrangement, overlapping a corresponding leg on a similarly L-shaped fitting 19 in connection with a bracket 22 at the top surface 3 of the gate opening.
  • the sealing members are constituted by bent flanges 16, 17, which are fastened to the gate member by means of screws, and which, in the closed position, cooperate with the bottom surface 4 of the gate opening.
  • the gate member 6 is formed with a cross-sectionally, substantially U-shaped profile member 18 with a track cooperating with a rail 21 in connection with the side surface 5 of the gate opening.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Gates (AREA)
  • Mushroom Cultivation (AREA)
  • Fertilizers (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Catching Or Destruction (AREA)
  • Auxiliary Methods And Devices For Loading And Unloading (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)

Abstract

The gate arrangement comprises a tilting gate, the gate member (6) being pivotally connected with the said housing (1) in a hinge connection (7) at the side surfaces (5) of the gate opening with a substantially horizontal axis of rotation (11) at right angles to the said transport path. The gate member (6) is shaped like a curved surface, which is a cylinder surface in a special embodiment.

Description

  • The present invention relates to a gate arrangement for the conveying of straw bales along a transport path in a straw firing plant, comprising a housing with a gate opening having a top surface, a bottom surface and two side surfaces as well as a gate member with a top edge, a bottom edge and two side edges, the gate member being movable between an open position and a closed position in which the gate member substantially covers the gate opening, the gate arrangement comprising a tilting gate, the gate member being pivotally connected with said housing in a hinge connection at the side surfaces of the gate opening with a substantially horizontal axis of rotation at right angles to the said transport path.
  • Such gate arrangements used, e.g., as lock gates in straw firing plants are conventionally designed as lifting gates, the gate member in the open position being received in the structure located below the transport path, and the top edge of the gate member being located substantially in alignment with the transport path and thus the bottom surface of the gate opening. During closure the gate member is moved upwards through a slot in the bottom surface of the gate opening until the gate member in the closed position covers the entire gate opening, the top edge of the gate member bearing against abutment surfaces at the top surface of the gate opening. Due to the clearance in the slot of the bottom surface of the gate member required for movement of the gate member, there is a risk, during conveying of the straw bales, that gravel, stones and similar elements conveyed into the plant together with the straw bales fall down and are wedged between the gate member and the side walls of the slot, which again means that the gate member cannot or can only with difficulty be lifted to a closed position. As the gate member in the open position is also received in the underlying structure, such gate arrangement becomes extremely bulky.
  • For partial alleviation of such disadvantages, a gate arrangement corresponding to the introduction of claim 1 is known.
  • The object of the invention is to provide a gate arrangement of the type mentioned in the introduction that ensures a reliable function of the gate arrangement.
  • This object is achieved by such gate arrangement which is characterized in that the gate member is shaped like a curved surface.
  • By designing the tilting gate of the gate arrangement with a curved gate member, it can be tilted up to assume the open position in a simple manner. The slot in the transport path can possibly be completely omitted, whereby the problem of down-falling elements does not arise, or it can be retained, the elements then being able to fall down for collection further down in the structure without conflicting with the gate member. Moreover, the design has a space-saving function, as the entire structure at the gate arrangement can be made lower than is the case in existing plants.
  • In a preferred embodiment of the invention, the gate member is shaped like a cylinder surface, which is expressed in that the side edge of the gate member is formed as a circular arc. This results in further saving of space, particularly if the hinge connection is placed so that the axis of rotation is located at such distance from the gate member surface as corresponds to the radius of curvature for the said surface.
  • To achieve a secure guiding of the gate member during the opening and closing movements and to provide the best sealing possible along the edges of the gate member, sealing members may be arranged in connection with the abutment surfaces of the gate member against the top, bottom and side surfaces of the gate opening for engagement with corresponding members at the gate opening.
  • The gate arrangement is preferably operated by means of a compressed-air cylinder, and in a suitable embodiment opening of the gate arrangement is facilitated by a counterbalance device.
  • The invention will now be described in more detail below with reference to the schematic drawing, in which
  • Fig. 1 is a partially sectional side view of a gate arrangement according to the invention,
  • Fig. 2 is a partially sectional top plan view of the gate arrangement of Fig. 1, and
  • Figs. 3-5 are details, on a larger scale, corresponding to marks A, B and C, respectively, in the gate arrangement shown in Figs. 1 and 2.
  • The gate arrangement shown in the drawing is designed as a tilting gate arranged in a housing 1 with an entry end 2 for straw bales, now shown, conveyed along a transport path that extends through the housing 1 between a storage place, such as a straw barn, and a boiler in a straw firing plant.
  • A gate opening with a top surface 3, a bottom surface 4 and two side surfaces 5 is formed in the entry end 2, and in the closed position of the gate arrangement shown the gate opening is substantially covered by a gate member 6 which, at a top edge 6a, a bottom edge 6b and two side edges 6c bears against two abutment surfaces at the top surface 3, the bottom surface 4 and the side surfaces 5, respectively, in the manner described in more detail in the following.
  • The gate member 6 is connected with the housing 1 at the side surfaces 5 of the gate opening by means of a hinge connection 7 which, at each side, comprises stub shafts 8 pivotally journalled in bearings 9. Each stub shaft 8 is mounted on one end of an associated arm 10 connected at an opposite end with the gate member 6 so that the hinge connection has an axis of rotation 11 that is substantially horizontal and extends at right angles to the transport path. In the embodiment shown the gate member 6 is shaped like a cylinder surface, the side edge 6c being formed as a circular arc. The arms 10 have a length so that the axis of rotation 11 is located at a distance from the cylinder surface of the gate member corresponding to the radius of the circular arc. Other curved surface shapes are also imaginable.
  • At the side of the hinge connection 7 opposite to the gate member 6, the tilting gate has a counterbalance device comprising a counterbalance 12 arranged one on either side of the housing 1 and being built of individual balance members and fastened to one end of a rod member 13 which is connected at the opposite end with the stub shaft 8 of the hinge connection 7.
  • For operation of the tilting gate, that is, opening and closure of the gate member 6 in relation to the gate opening 3, 4, 5, one end of a compressed-air cylinder 14 is pivotally connected with fittings, not shown in detail, on either side of the housing 1, and at the opposite end each compressed-air cylinder 14 is also pivotally connected with the rod member 13.
  • To achieve secure guiding of the gate member 6 during the opening and closing movements and to provide the best possible seal along the edges 6a, 6b, 6c of the gate member, the gate member 6 has sealing members 15-18 for engagement with corresponding members in the gate opening, as is most clearly shown in Figs. 3-5.
  • At the top edge 6a of the gate member 6, the sealing member is formed as a cross-sectionally, substantially L-shaped fitting 15 with a leg projecting downwards along the outer surface of the gate member and, in the closed position of the gate arrangement, overlapping a corresponding leg on a similarly L-shaped fitting 19 in connection with a bracket 22 at the top surface 3 of the gate opening. At the bottom edge 6b, the sealing members are constituted by bent flanges 16, 17, which are fastened to the gate member by means of screws, and which, in the closed position, cooperate with the bottom surface 4 of the gate opening. At the side edges 6c, the gate member 6 is formed with a cross-sectionally, substantially U-shaped profile member 18 with a track cooperating with a rail 21 in connection with the side surface 5 of the gate opening.

Claims (6)

  1. A gate arrangement for the conveying of straw bales along a transport path in a straw firing plant, comprising a housing (1) with a gate opening having a top surface (3), a bottom surface (4) and two side surfaces (5) as well as a gate member (6) with a top edge (6a), a bottom edge (6b) and two side edges (6c), the gate member being movable between an open position and a closed position in which the gate member substantially covers the gate opening, the gate arrangement comprising a tilting gate, the gate member (6) being pivotally connected with said housing (1) in a hinge connection (7) at the side surfaces (5) of the gate opening with a substantially horizontal axis of rotation (11) at right angles to the said transport path, characterized in that the gate member (6) is shaped like a curved surface.
  2. A gate arrangement according to claim 1, characterized in that the said surface is a cylinder surface.
  3. A gate arrangement according to claim 1 or 2, characterized in that the said hinge connection (7) is placed so that the axis of rotation (11) is located at such distance from the gate member surface (6) as corresponds to the radius of curvature of the said surface.
  4. A gate arrangement according to any of the preceding claims, characterized in that at its top, bottom and side edges (6a, 6b, 6c) the gate member (6) comprises sealing members (15-18) for engagement with similar members (19, 21) at the top, bottom and side surfaces (3-5) of the gate opening.
  5. A gate arrangement according to any one of the preceding claims, characterized by comprising a compressed-air cylinder (14) for operation of the gate member (6).
  6. A gate arrangement according to any one of the preceding claims, characterised by comprising a counterbalance device having two counterweights (12) connected with respective rod members (13) at a distance from the said axis of rotation (11).
EP00610067A 1999-07-02 2000-07-03 Gate arrangement for straw firing plant Expired - Lifetime EP1065441B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK00610067T DK1065441T3 (en) 1999-07-02 2000-07-03 Gate arrangement for a straw firing plant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK199900956A DK199900956A (en) 1999-07-02 1999-07-02 Portarragement for a straw burning plant
DK95699 1999-07-02

Publications (2)

Publication Number Publication Date
EP1065441A1 true EP1065441A1 (en) 2001-01-03
EP1065441B1 EP1065441B1 (en) 2006-09-20

Family

ID=8099403

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00610067A Expired - Lifetime EP1065441B1 (en) 1999-07-02 2000-07-03 Gate arrangement for straw firing plant

Country Status (5)

Country Link
EP (1) EP1065441B1 (en)
AT (1) ATE340339T1 (en)
DE (1) DE60030808T2 (en)
DK (2) DK199900956A (en)
ES (1) ES2270800T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101865471A (en) * 2010-06-21 2010-10-20 泉州市锦田机械厂 Oxygen provider of rotary garbage furnace

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1516107A (en) * 1967-01-23 1968-03-08 Entpr Hartmann Pere Et Fils Device for feeding light products, more particularly applicable to poor fuel stoves
DE1751969A1 (en) * 1968-08-26 1971-09-09 Waermetechnik Dr Pauli Gmbh Allocator for waste incineration plants
US4202281A (en) * 1977-04-29 1980-05-13 Entreprise Generale De Chauffage Industriel Pillard Polyvalent incinerator for solid and/or liquid waste
EP0038962A1 (en) * 1980-04-29 1981-11-04 Siegfried Bieder Apparatus for the combustion of light solid materials by a continuously fed furnace
DE3304927A1 (en) * 1983-02-12 1984-08-16 Norman J. 2000 Hamburg Andersen Device for the supply of recyclings into a thermal decomposition installation
WO1993023709A1 (en) * 1992-05-20 1993-11-25 Thomas Koch Apparatus for feeding a reactive component into a pressure vessel, for example a reactor chamber or a furnace

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855950A (en) * 1973-10-10 1974-12-24 Consumat Syst Inc Automatic loading and ash removal system for incinerators
DE19909985A1 (en) * 1999-03-06 2000-09-07 Otto Entsorgungssysteme Gmbh Large waste container

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1516107A (en) * 1967-01-23 1968-03-08 Entpr Hartmann Pere Et Fils Device for feeding light products, more particularly applicable to poor fuel stoves
DE1751969A1 (en) * 1968-08-26 1971-09-09 Waermetechnik Dr Pauli Gmbh Allocator for waste incineration plants
US4202281A (en) * 1977-04-29 1980-05-13 Entreprise Generale De Chauffage Industriel Pillard Polyvalent incinerator for solid and/or liquid waste
EP0038962A1 (en) * 1980-04-29 1981-11-04 Siegfried Bieder Apparatus for the combustion of light solid materials by a continuously fed furnace
DE3304927A1 (en) * 1983-02-12 1984-08-16 Norman J. 2000 Hamburg Andersen Device for the supply of recyclings into a thermal decomposition installation
WO1993023709A1 (en) * 1992-05-20 1993-11-25 Thomas Koch Apparatus for feeding a reactive component into a pressure vessel, for example a reactor chamber or a furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101865471A (en) * 2010-06-21 2010-10-20 泉州市锦田机械厂 Oxygen provider of rotary garbage furnace
CN101865471B (en) * 2010-06-21 2011-09-14 泉州锦田机械有限公司 Oxygen provider of rotary garbage furnace

Also Published As

Publication number Publication date
DK1065441T3 (en) 2006-10-23
DK199900956A (en) 2001-04-10
DE60030808T2 (en) 2007-09-06
DE60030808D1 (en) 2006-11-02
EP1065441B1 (en) 2006-09-20
ATE340339T1 (en) 2006-10-15
ES2270800T3 (en) 2007-04-16

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