EP1342959A1 - Dispositif pour protéger une ouverture dans une installation de traitement de déchets - Google Patents

Dispositif pour protéger une ouverture dans une installation de traitement de déchets Download PDF

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Publication number
EP1342959A1
EP1342959A1 EP02027231A EP02027231A EP1342959A1 EP 1342959 A1 EP1342959 A1 EP 1342959A1 EP 02027231 A EP02027231 A EP 02027231A EP 02027231 A EP02027231 A EP 02027231A EP 1342959 A1 EP1342959 A1 EP 1342959A1
Authority
EP
European Patent Office
Prior art keywords
opening
air jet
core air
air
jet nozzles
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
EP02027231A
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German (de)
English (en)
Other versions
EP1342959B2 (fr
EP1342959B1 (fr
Inventor
Peter Wiemann
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.)
LWT Luftwandtechnologie GmbH
Original Assignee
LWT Luftwandtechnologie GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Application filed by LWT Luftwandtechnologie GmbH filed Critical LWT Luftwandtechnologie GmbH
Publication of EP1342959A1 publication Critical patent/EP1342959A1/fr
Application granted granted Critical
Publication of EP1342959B1 publication Critical patent/EP1342959B1/fr
Publication of EP1342959B2 publication Critical patent/EP1342959B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F9/00—Use of air currents for screening, e.g. air curtains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F9/00—Use of air currents for screening, e.g. air curtains
    • F24F2009/005—Use of air currents for screening, e.g. air curtains combined with a door

Definitions

  • the invention relates to a device for shielding openings, in particular gates or doors, on buildings or plants for waste treatment or on storage buildings or bunkers for waste collection, in particular on composting plants, waste recycling plants or waste incineration plants, which in the following description are also referred to as landfills , It relates in particular to a device for shielding openings at unloading points, loading or receiving bunkers or other facilities for the delivery, transport and storage of waste.
  • the object of the present invention is therefore to provide a structurally simple, inexpensive to produce and easy to handle device of the type mentioned, which provides a permanently safe and effective shielding of the environment against internal and stressful air conditions such as dust and odor, and at the same time a simple and enables the dumping or installation to be quickly prepared and carried out without undermining the conditions required by the German Federal Immission Control Act.
  • At least two core air jet nozzles arranged in different edge regions of the opening and connected to an air blower are provided, the outlet openings of which are directed in the direction of the opening in such a way that the core air jets emerging from the core air jet nozzles come from different directions at an angle between 1 ° and 60 ° through the opening into the landfill.
  • the device according to the invention creates an inexpensive shield for waste treatment plants or landfills, which in particular also reliably and effectively shields contours standing in the room separation opening, for example the contour of a unloading vehicle, against internal and polluting air conditions such as dust and odor.
  • a complex and time-consuming opening and closing of several lock gates during tipping processes is no longer necessary.
  • the device according to the invention is inexpensive to manufacture and simple to assemble and handle.
  • the fact that the pre-sluice previously required for shielding can be dispensed with leads to considerable cost savings in the acquisition and operation of the landfill operator.
  • the air on the one hand exits from at least two different directions, in particular in a laminar or approximately laminar flow, and that the air on the other hand runs into the landfill building to be shielded.
  • the air on the other hand runs into the landfill building to be shielded.
  • the device according to the invention uses the so-called “Coanda effect”, so that the striking the vehicle contour obliquely Nestle air jets at a certain angle on the vehicle and flow into the building along the vehicle contour.
  • the previously calculated air volume of this jet prevents the dust and odor-laden air from escaping and, on the other hand, because it is outside air, dilutes the odor-laden air inside the landfill, which in turn benefits the installed exhaust air cleaning system.
  • the core air jets emerging from the core air jet nozzles are directed at an angle of 15 ° -45 ° through the opening into the waste landfill. A particularly safe and effective shielding can be achieved in this way.
  • two core air jet nozzles are arranged on opposite sides of the opening.
  • the lateral core air jets are advantageously each formed by an extremely high narrow flat jet.
  • two core air jet nozzles can also be arranged on mutually adjacent sides of the opening. Effective shielding can also be achieved here, since the air jets are blown out from different directions.
  • a plurality of core air jet nozzles or a plurality of individually controllable sections of a core air jet nozzle are arranged on at least one side of the opening.
  • This allows the core air jet shield to be flexibly adapted to different opening cross-sections.
  • openings that are frequented by vehicles of different sizes or even different structures, for example open tippers and closed tippers can be shielded particularly effectively as a result.
  • the core air jet nozzles are arranged in several planes in front of the opening.
  • the core air jet nozzles or the individually controllable sections of a core air jet nozzle extend uniformly or unevenly over the entire height or width of the opening. In this way, optimal shielding of the landfill opening can be achieved and escape of odorant-laden or dust-laden air from the landfill bunker into the ambient air can be reliably prevented.
  • the core air jet nozzles are connected to the air blower at the end or at the side or along the length.
  • Several core air jet nozzles can be connected to a common air blower via connecting lines or each core air jet nozzle can be connected to a separate air blower, the core air jet nozzles then being able to be operated with the same or with different volume flows.
  • the suction opening of the air blower is preferably connected to the surroundings, so that outside air is sucked in.
  • a device for cooling or heating the air is provided in front of the air blower or between the air blower and the core air jet nozzles. If a rotting process is desired in a waste treatment plant, it may be sensible to raise the temperature of the air introduced by the device according to the invention. Process heat can preferably be supplied to a device for heating the air. In other cases, it can make sense to cool the incoming air, since a large number of landfills have deep bunkers into which colder air sinks better, taking the bound emissions with them.
  • At least one sensor in particular a smoke detector or smoke detector, is arranged on the outside in front of or at the opening, which detects the actual state the currently escaping gases, odors and / or dusts or dirt particles possibly emerging from the opening, and that a control or regulating unit is provided, to which the signals determined by the sensor or sensors are fed, and by means of the signals that are supplied that the air blower and / or the air flows can be controlled or regulated instantaneously.
  • At least one sensor in particular a proximity sensor, can advantageously be arranged on the outside in front of the opening of the landfill and can detect an object, in particular a vehicle, located in front of the opening, a control or regulating unit being provided which detects the sensor Signals are supplied, and by means of which the air blower (s) and / or the air flows can be automatically controlled or regulated as a function of the signals supplied.
  • the air flows can preferably be controlled or regulated in their volume flow and / or in the number of core air jet nozzles to be opened and / or in the number of sections of a core air jet nozzle to be opened.
  • a particularly effective shielding can furthermore be achieved in that the core air jet nozzles each comprise a rectifier channel for calming the introduced air stream into a laminar or at least approximately laminar outflow of a core air jet at the outlet opening.
  • the core air jet nozzles can also comprise a guide plate for guiding the core air jet with little turbulence.
  • the core air jet nozzles are arranged to be pivotable about an axis running parallel to the respective edge region of the opening. This creates a particularly flexibly adjustable device that can be adapted to different applications.
  • a sealing apron or spacer apron for sealing against ambient air can advantageously be provided between the core air jet nozzles and the opening of the landfill in order to protect the mode of operation of the device according to the invention from negative weather influences.
  • a device is provided at the opening by means of which objects, in particular vehicles, entering the opening can be wetted or misted with a liquid, preferably with water.
  • a liquid preferably with water.
  • there can be upstream fogging systems which mist the unloading vehicles with water and thus additionally ensure that the residues are completely dispensed, the moistening being conducive to a rotting process.
  • the device according to the invention comprises an air blower 1, which sucks in outside air 2 on the suction side and is connected on the pressure side via a pipe system 3 to two core jet nozzles 6 which are located laterally next to the gate opening 4 of a closed waste disposal site 5.
  • the air blower 1, which by design must overcome a defined back pressure, conveys fresh air on the suction side and presses the pre-compressed air into the nozzles 6, which in turn have a pressure chamber.
  • the pre-pressure prevailing here leaves the pressure chamber via a narrow blow-out nozzle which is already adapted to the pressure housing A described.
  • the nozzle itself is provided inside the pressure box A with a baffle plate E which follows the direction of the air parallel, so that here the turbulent air inside the pressure chamber is channeled and is laminar at a high speed. After exiting the nozzle, a flat jet of core air is created, which has very little induction with the secondary ambient air.
  • a further baffle C is arranged on the side and parallel to the outflow direction, the length of which can be adjusted depending on the requirements of the core jet length (FIG. 5).
  • the arrangement of two core air jets according to the invention allows areas of different physical or physical parameters, such as temperature, air pollution level, molecular odor load, and / or chemical air composition to be separated or shielded from one another.
  • the core air jet nozzle shown in FIG. 6 in longitudinal section and as a detail in FIG. 5 as cross section has an air wall pressure linear module housing A, which can be made of plastic, steel or stainless steel. On the pressure side, it has a pressure connection B for an upstream fan.
  • An adjustable air baffle C can optionally be provided for setting and optimizing the core jet.
  • the adjustability of the external air baffle is shown at F.
  • a downstream air rectifier D for blowing out the laminar flow can have an M-shaped, Z-shaped, square or rectangular lattice structure, which is also available as a semi-finished product.
  • An air ducting E including an air trap edging is formed to convert the turbulent flow into a laminar flow.
  • a base plate G is provided for rotatably mounting the pressure linear module on the floor.
  • the adjustability of the base plate with a screw connection is shown at H.
  • a pre-rectifier J can be arranged to calm the turbulent air flowing in from the upstream pressure blower.
  • the laterally standing pressure nozzles 6 are arranged on the passage gate 4 so as to be pivotable about a vertical axis.
  • the mechanical adjustment of the basic setting angle of the pressure nozzles 6 is realized with a fixed base plate and a bearing rotating thereon in the form of a collar.
  • both nozzles 6 are connected via pipes 3 to a common air blower 1.
  • FIG. 3 shows an arrangement variant in which the pressure nozzles 6, which are arranged laterally fixed, generate an air jet 9 at the passage gate 4, which jet jet has a jet angle of 15-35 ° onto the vehicle 7 standing in the opening 4.
  • each nozzle 6 is connected to a separate air blower 1.
  • the solution according to the invention has two core air jet nozzles 6, each of which has a guide plate C which guides the air core jet with little turbulence.
  • the device according to the invention comprises a specially designed high-pressure fan 1, which can be located on the outside, in front of the bunker 5 to be sealed off, on the floor, on the roof or on the facade wall.
  • This high-pressure blower 1 is connected on the pressure side to rigid or flexible connecting pipes 3, which may consist, for example, of a folded spiral-seam pipe, plastic pipe or flexible aluminum pipe, which must have the necessary pressure resistance.
  • the design parameters of the pressure blower 1, usually a radial fan, are between 600 and 4000 Pa depending on the partition geometry to be sealed off.
  • the core jet nozzles 6 have a housing A, which can be folded on several sides, can be half-round and / or completely round.
  • the housing also known as the so-called pressure linear module A, is fed in from the front from above or from the side or from below by means of a pressure blower 1, the defined volume of this module on the one hand having a pressure storage space and on the other hand forming a calming zone for the turbulently entering air.
  • the molded rectifier duct E converts the turbulent air as a calming section into a laminar outflow at the nozzle end.
  • a baffle housing can be arranged, so that the air that is swirled over short pipe sections is forcibly converted into a straight flow.
  • the pressurized outside blower air in the storage space is caught by an inner baffle edge E and directed into the narrow nozzle duct.
  • the inner guide plate E and the angular upstand are dimensioned.
  • the pre-compressed air can advantageously pass a further rectifier D shortly before the nozzle inlet, which rectifier passes through a grid structure in a square, rectangular, triangular, M-shaped, Z-shaped or trapezoidal cross-sectional geometry.
  • the depth of this profile corresponds to 1.5 to 6 times the depth of the ratio of the nozzle width.
  • the core jet lies against the baffle that can be adjusted parallel to the outside according to the "Coanda effect" and follows this flat surface, which also indicates the jet direction, up to the defined tear-off edge.
  • the tear-off edge is shaped as a quarter-round fold to minimize the possible tear-off noises.
  • the tear-off edge itself is molded in order to induce the standing secondary air into the core jet due to the folding angle and thus to minimize the molecular friction between accelerated air and standing ambient air (so-called injector effect or follow-up acceleration).
  • the length of the guide plate which can be individually adjusted in length, has a length of 0.1 to twice the length of the flow straightener located in the pressure nozzle.
  • the length adjustment is preferably carried out with elongated holes clamped by screws or guide rails in the side edges or the like.
  • FIG. 4 shows the flow pattern of the inward directed outside air jet, which is applied to the vehicle body 7 arranged as an example, follows the longitudinal axis and penetrates into the air-contaminated building part 5 as a radiation cone. In this way, as described above, fresh air is brought into the smell and dust-laden bunker 5. This is followed by a dilution of the air concentration, which then also supports the necessarily installed exhaust air cleaning system.
  • a horizontally oriented core jet nozzle 6 is additionally arranged on the upper side of the opening 4 of a waste waste bunker 5, which seals in addition to one or two side air walls 9 from above, which is particularly the case with open tipping trucks 7 from Advantage is.
  • the core air jet 9 lies from above over the entire width of the tipping trough 10 against the contour of the tipping truck 7 and thus also particularly effectively shields the area 11, in which particularly high concentrations of dust and odor particles arise during the tipping process.
  • the core air jet 9 peels off the dust-containing particles from the bottom surface of the tipping body 10.
  • FIG. 8 shows an embodiment variant in which sensor 12 designed as a smoke gas detector and three proximity sensors 13 are arranged on the outside in front of opening 4.
  • the current actual state of the escaping gases or odors and any dirt particles that may emerge from the opening 4 can be detected by the smoke gas detector 12, while a vehicle 7 located in front of the opening 4 in different contours or heights H1, H2 can be detected by the proximity sensors 13 can be recorded.
  • a control unit 14 is also provided, to which the signals determined by sensors 12 and 13 are fed. Accordingly, the control unit 14 can regulate the air blower and / or the air streams immediately, depending on the signals supplied, in such a way that optimal protection against escaping emissions is provided, which is adapted to the current situation.
  • the air flows can be regulated in their volume flow and / or in the number of core air jet nozzles 6 to be opened or in the number of individually controllable sections of a core air jet nozzle 6 to be opened.
  • mechanically actuated gates are provided at the openings 4 of the waste landfill 5, in order to achieve a secure sealing of the building 5 in a simple and economical manner when the openings 4 are not used for a long time.
  • These gates can also be operated automatically via the control unit 14, it being possible, for example, to set the required opening height as a function of the determined height H1, H2 of the respective vehicle 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Processing Of Solid Wastes (AREA)
  • Nozzles (AREA)
  • Working Measures On Existing Buildindgs (AREA)
EP02027231A 2002-03-04 2002-12-06 Dispositif pour protéger une ouverture dans une installation de traitement de déchets Expired - Lifetime EP1342959B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20203378U DE20203378U1 (de) 2002-03-04 2002-03-04 Vorrichtung zur Abschirmung von Öffnungen einer Abfalldeponie
DE20203378U 2002-03-04

Publications (3)

Publication Number Publication Date
EP1342959A1 true EP1342959A1 (fr) 2003-09-10
EP1342959B1 EP1342959B1 (fr) 2004-04-07
EP1342959B2 EP1342959B2 (fr) 2008-12-17

Family

ID=7968530

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02027231A Expired - Lifetime EP1342959B2 (fr) 2002-03-04 2002-12-06 Dispositif pour protéger une ouverture dans une installation de traitement de déchets

Country Status (3)

Country Link
EP (1) EP1342959B2 (fr)
AT (1) ATE263948T1 (fr)
DE (2) DE20203378U1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1029849C2 (nl) * 2005-09-01 2007-03-05 Biddle B V Luchtgordijn met modulaire behuizing.
EP2746686A1 (fr) * 2012-12-24 2014-06-25 Handelsmaatschappij Willy Deweerdt Bvba Dispositif pour générer un rideau d'air
GB2563474A (en) * 2018-02-16 2018-12-19 Wirth Doors Ltd An active airflow inhibiting apparatus
CH715247A1 (de) * 2018-08-14 2020-02-14 Jomos Brandschutz Ag Druckabschirmungssystem zur Aufrechterhaltung des Druckunterschieds an einer Öffnung eines Gebäudes zwischen zwei Bereichen mit unterschiedlichem Druck.

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10313117A1 (de) * 2003-03-24 2004-10-14 Lwt Luftwandtechnologie Gmbh Luftstromvorrichtung für Toröffnung
CN103768732A (zh) * 2014-02-14 2014-05-07 陈仁多 高层建筑楼梯口拦截烟雾机
CN104874115A (zh) * 2014-02-28 2015-09-02 陈仁多 原有高层建筑后建连体逃生系统
GB2589899B (en) * 2019-12-11 2021-12-15 Wirth Doors Ltd An active airflow inhibiting apparatus
US11389992B1 (en) 2021-10-20 2022-07-19 Olivier Hugo Christopher Dany Vanderbeken Small footprint pre-treatment plant and decentralized food waste separation and treatment

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB967097A (en) * 1962-06-20 1964-08-19 Bahco Ab Improvements in air curtain apparatus used in combination with conventional doors, for example, sliding doors
US3350994A (en) * 1965-10-23 1967-11-07 Guibert Raul Air curtain, ventilating system and air pump therefor
JPS6233234A (ja) * 1985-08-07 1987-02-13 Ebara Corp エア−カ−テン装置付自動扉
FR2785370A1 (fr) * 1998-11-04 2000-05-05 Ensmse Dispositif et procede de traitement d'air realisant une isolation par rideau d'air
DE10005964A1 (de) * 2000-02-09 2001-08-23 Kessler & Luch Gmbh & Co Kg Vorrichtung zum Verhindern des Eindringens von Zugluft durch eine Öffnung in einem Gebäude
DE20116803U1 (de) * 2001-10-17 2002-01-17 Falk, Robert, 58332 Schwelm Schiebetüreinrichtung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB967097A (en) * 1962-06-20 1964-08-19 Bahco Ab Improvements in air curtain apparatus used in combination with conventional doors, for example, sliding doors
US3350994A (en) * 1965-10-23 1967-11-07 Guibert Raul Air curtain, ventilating system and air pump therefor
JPS6233234A (ja) * 1985-08-07 1987-02-13 Ebara Corp エア−カ−テン装置付自動扉
FR2785370A1 (fr) * 1998-11-04 2000-05-05 Ensmse Dispositif et procede de traitement d'air realisant une isolation par rideau d'air
DE10005964A1 (de) * 2000-02-09 2001-08-23 Kessler & Luch Gmbh & Co Kg Vorrichtung zum Verhindern des Eindringens von Zugluft durch eine Öffnung in einem Gebäude
DE20116803U1 (de) * 2001-10-17 2002-01-17 Falk, Robert, 58332 Schwelm Schiebetüreinrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 011, no. 215 (M - 606) 11 July 1987 (1987-07-11) *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1029849C2 (nl) * 2005-09-01 2007-03-05 Biddle B V Luchtgordijn met modulaire behuizing.
WO2007027083A1 (fr) * 2005-09-01 2007-03-08 Biddle B.V. Rideau d’air à logement modulaire
EP2746686A1 (fr) * 2012-12-24 2014-06-25 Handelsmaatschappij Willy Deweerdt Bvba Dispositif pour générer un rideau d'air
BE1021507B1 (nl) * 2012-12-24 2015-12-03 Handelsmaatschappij Willy Deweerdt Bvba Inrichting voor het genereren van een luchtwand
US10260764B2 (en) 2012-12-24 2019-04-16 Handelsmaatschappij Willy Deweerdt Bvba Device for generating an air wall
GB2563474A (en) * 2018-02-16 2018-12-19 Wirth Doors Ltd An active airflow inhibiting apparatus
GB2563474B (en) * 2018-02-16 2019-06-19 Wirth Doors Ltd An active airflow inhibiting apparatus
CH715247A1 (de) * 2018-08-14 2020-02-14 Jomos Brandschutz Ag Druckabschirmungssystem zur Aufrechterhaltung des Druckunterschieds an einer Öffnung eines Gebäudes zwischen zwei Bereichen mit unterschiedlichem Druck.
WO2020034045A1 (fr) 2018-08-14 2020-02-20 Jomos Brandschutz Ag Système de protection contre la pression, installation de pression différentielle et bâtiment

Also Published As

Publication number Publication date
DE20203378U1 (de) 2002-10-02
EP1342959B2 (fr) 2008-12-17
DE50200337D1 (de) 2004-05-13
ATE263948T1 (de) 2004-04-15
EP1342959B1 (fr) 2004-04-07

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