EP1367176A1 - Système anti-poussière pour machine de construction de chaussées - Google Patents

Système anti-poussière pour machine de construction de chaussées Download PDF

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Publication number
EP1367176A1
EP1367176A1 EP02011273A EP02011273A EP1367176A1 EP 1367176 A1 EP1367176 A1 EP 1367176A1 EP 02011273 A EP02011273 A EP 02011273A EP 02011273 A EP02011273 A EP 02011273A EP 1367176 A1 EP1367176 A1 EP 1367176A1
Authority
EP
European Patent Office
Prior art keywords
binding agent
water
dust
dust binding
working
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.)
Ceased
Application number
EP02011273A
Other languages
German (de)
English (en)
Inventor
S.H.J. Klaasse
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.)
Caterpillar Prodotti Stradali SRL
Original Assignee
Bitelli SpA
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
Application filed by Bitelli SpA filed Critical Bitelli SpA
Priority to EP02011273A priority Critical patent/EP1367176A1/fr
Priority to US10/442,723 priority patent/US20040036346A1/en
Publication of EP1367176A1 publication Critical patent/EP1367176A1/fr
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/08—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
    • E01C23/085—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
    • E01C23/088—Rotary tools, e.g. milling drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B17/00—Methods preventing fouling
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
    • E01C2301/50—Methods or devices for preventing dust by spraying or sucking

Definitions

  • the present invention relates to a method and apparatus for dust handling, in particular for use on a road working machine, like a cold planer.
  • Cold planers or road scarifiers comprise a working device, e.g. a milling drum to remove, for example, a surface layer from a road to be repaired.
  • the material to be removed is fragmented or broken up into small pieces by the working device and then transported to another location for collection and/or for reuse. During this fragmentation and transport process the broken up material generates dust particles in a quite high amount. This dust is an undesirable byproduct of the road working process.
  • EP 0 971 075 A1 discloses one attempt to handle dust developed during grinding of road surfaces, by providing, on a scarifier, a dust handling device.
  • the dust handling device comprises a housing at least partially enclosing the milling drum and defining a suction area, a suction fan and a suction duct connecting said suction area and said suction fan.
  • the suction fan discharges the dust containing air sucked away from the working space above the milling drum through a filter.
  • the filtered air is then discharged and the collected dust powder is discharged to a different location.
  • the present invention provides a method and an apparatus for reducing dust during operation of a road working machine like a cold planer.
  • the dust produced by the generation and transport of fragmented material in the road working machine is effectively trapped and removed from the air.
  • a method of reducing dust produced by a work machine which is adapted to fragment material from a working surface and includes at least one partially confined space in which said dust occurs, comprises providing a liquid capable of binding dust and spraying the liquid into said partially confined space.
  • the liquid includes a dust binding agent which is mixed with water.
  • the invention also provides a road working machine having a working device adapted to fragment a working surface.
  • the road working machine comprises a water source connected to a pump which in turn is connected to at least one outlet, said water source including a dust binding agent, and said outlet being directed at said fragmented material from said working device.
  • an apparatus for reducing dust is provided.
  • the apparatus is adapted to be mounted on a road working machine having a working device adapted to fragment a working surface.
  • the apparatus comprises a water source connected to a pump which in turn is connected to at least one outlet.
  • the water source includes a dust binding agent and the outlet is adapted to be mounted to a portion of said working machine so as to be directed at said fragmented material from said working device.
  • Fig. 1 shows schematically a road working machine 1 in a side view.
  • the road working machine 1 includes a machine frame 2 and traction supports 3 for supporting the machine frame 2 and moving it along the driving direction.
  • a drivers seat 4 is located generally above a working device 5 supported at a central position on the machine frame 2 and schematically indicated by dashed lines.
  • the working device 5 is adapted to remove material from a working surface 6 and may be a milling drum equipped with grinding tools (not shown) which fragment the surface layer of the working surface 6 when they come in contact therewith.
  • a housing 7 defining a working space 8 of the working device 5. Dust and other debris material generated during the removal of the surface material, i.e. the fragmentation of the working surface, is generally confined in the working space 8 by the housing 7.
  • Cooling is typically achieved by spraying cooling water supplied from a water tank 9 carried by the working machine 1 onto the working device 5, e.g. the milling drum.
  • a spraying means (not shown) is provided inside the housing 7 of the working device.
  • this spraying means comprises nozzles which are adapted to generate a fan shaped cooling water jet which is directed onto the working device 5.
  • Conveyor means 10 in front of the working device 5 are provided to transport the fragmented material produced during operation of the working device 5 away from the working space 8 and to a collecting location, e.g. to a loading platform of a truck (not shown) driving in front of the working machine 1.
  • the conveyor means 10 may consist of a lower conveyor belt 11 and an upper conveyor belt 12.
  • the upper conveyor belt 12 may be moved or pivoted relative to the lower conveyor belt 11 in a vertical and horizontal direction so as to properly adjust the conveyor means 10 with regard to the collection location (not shown).
  • the upper conveyor 12 is also foldable so as to reduce its total length during transportation of the working machine 1.
  • the upper conveyor belt 12 may be also moved towards the lower conveyor belt 11 so as to properly load the transported material from the lower conveyor belt 11 onto the upper conveyor belt 12.
  • the conveyor means 10 are covered by a hood structure 13 on the upper conveyor belt 12 and a cover structure (not shown) connected to the machine frame 2 in the area of the lower conveyor belt 11.
  • the hood structure 13 joins to the cover structure of the lower conveyor belt 11 when a lower end 14 of the upper conveyor belt 12 is moved towards an upper end 15 of the lower conveyor belt 11 and positioned above the same.
  • Figs. 2a and 2b show schematically a detail of the conveyor means 10 in the area of the upper end 15 of the lower conveyor belt 11 and the lower end 14 of the upper conveyor belt 12.
  • the hood structure 13, the machine frame 2 and the cover structure of the lower conveyor belt 11 form a space 20 more or less confined to prevent the dust generated by the fragmented material from immediately escaping to the surrounding environment.
  • a dust handling apparatus 30 is installed on the working machine 1 at the upper end 15 of the lower conveyor belt 11 and at the lower end 14 of the upper conveyor belt 12.
  • the dust handling apparatus 30 includes a liquid supply system 32 and a plurality of outlets 141, 142.
  • the liquid supply system 32 supplies a liquid under pressure to the outlets 141, 142.
  • the outlets 141, 142 are realized as nozzels mounted on wall structures around the conveyor belts 11, 12, whereby the wall structures may include side walls extending from the conveyor belts, parts of the cover structure of the lower conveyor belt 11, parts of the hood structure 13 of the upper conveyor belt 12, and/or parts of the machine frame 2.
  • the outlets 141, 142 direct the liquid onto the fragmented material conveyed on the lower and upper conveyor belts 11 and 12 preferably in the form of a widely dispersed spray, which is, more preferably, conically shaped.
  • the liquid in the preferred embodiment includes water mixed with a dust binding agent, e.g. DustconTM, in a predetermined mixture ratio.
  • the liquid supply system 32 comprises a plurality of hoses or tubings 201 to 210, 216, 219 and 220 forming a network including a first and a second distributor means 211 and 221, a plurality of couplings 315 to 318, and a plurality of T-connectors 314.
  • the hoses 203 and 207 are connected to the first distributor means 211 receiving the water mixed with the dust binding agent as indicated by the arrow 212.
  • the hose 203 distributes the liquid via couplings 316, 315 and T- connectors 314 to the hoses 201, 202 and 204 wherein in turn the hose 201 is connected to an upper one of the outlets 141, hose 202 is connected to a middle one of the outlets 141 and hose 204 is connected to a lower one of the outlets 141 in Fig. 2a.
  • the outlets 141 direct the conically shaped spray of the water mixed with the dust binding agent onto the fragmented material transported on the lower conveyor belt 11.
  • the hoses 207 connect the first distributor 211 with the second distributor 221 to which they are coupled on a side surface of the second distributor 221 by couplings 318.
  • hoses 205, 216, 219, and 220 are coupled to the second distributor 221 via couplings 317 and T-connectors 314.
  • the hoses 206 and 208 are coupled to the remaining side surfaces of the second distributor 221, and, as shown in Fig. 2b, the hoses 209 and 210 are coupled to a bottom surface of the second distributor 221 by respective couplings 317.
  • the upper surface of the second distributor 221 is mounted to a part of the machine frame 2.
  • the hoses 205, 216 and the hoses 206, 209 direct the liquid to respective outlets 142 in the form of nozzles mounted on opposite sides of the lower conveyor belt 11.
  • the hoses 208, 210 provide respective outlets 142 at the upper end 15 of the lower conveyor belt 11 with the liquid consisting of water mixed with the dust binding agent, and the hoses 219, 220 supply this mixture to respective outlets 142 mounted in the area of the lower end 14 of the upper conveyor belt 12.
  • the water mixed with the dust binding agent is sprayed onto the fragmented material in the area where it is discharged from the lower conveyor belt 11 onto the upper conveyor belt 12, whereby the outlets or nozzles 142 form a conically shaped sprayed mist of fine water dropplets which act to trap the dust particles generated by the fragmented material.
  • Fig. 3 shows an embodiment of a part of the supply system 32 (also called water source) which provides the water mixed with the dust binding agent pressurized to the first distributor 211 in Fig. 2a.
  • the water is directly mixed with the dust binding agent, and this mixture is stored in the water tank 9 of Fig. 1.
  • the water tank 9 is provided with an outlet port (not shown) which is connected via a shut off tap or valve 426 and a supply line 423 to a filter 422.
  • the filter 423 in turn is connected via another line 428 to a pump 438.
  • the pump 438 pressurizes the liquid received on line 428.
  • An outlet (not shown) of the pump 438 is connected via line 437 with the first distributor 211, as indicated by the arrow 212.
  • the pump 438 is hydraulically driven and to this end the pump 438 is supplied with hydraulic fluid via hydraulic lines 439.
  • the pump 438 is cooled by the liquid being passed therethrough and a bypass line 440 directs the liquid back to the tank 9 in case it is disconnected or shut off from the first distributor 211.
  • the spraying system provided in the housing 7 around the working device 5 for cooling the working device 5 is connected to the water tank 9 containing the mixture of water and dust binding agent.
  • the cooling water sprayed onto the working device 5 has also an improved dust capture capability and helps to reduce the amount of dust generated in the working space 8.
  • the water and the liquid dust binding agent are stored at separated storing locations, i.e. the water is stored in the tank 9 and the dust binding agent is stored in a dust agent container (not shown).
  • the dust binding agent container is provided with an outlet which is connected to a liquid supply line coming from the water tank 9. This connection can be made wherever convenient, either just after the filter, or just before the pump 438 or even after the pump 438.
  • the dust binding agent is fed into the liquid supply line by a metering device (not shown) to control the amount of dust binding agent mixed in the water supplied on the supply line. This arrangement helps to better control the consumption of the dust binding agent and to apply it only to selected locations, e.g., the area where the outlets 141 and 142 of dust handling apparatus 30 are mounted on the working machine 1.
  • the housing 7 of the working device 5 may be equipped with nozzles connected to the supply system for the water and dust binding agent mixture and capable of generating a widely dispersed spray of the liquid to more effectively trap the dust generated by the fragmentation of material by the working device 5 directly in the working space 8.
  • the material of the working surface 6 is fragmented by the working device 5 and is accompanied by the generation of a high amount of dust particles and smoke.
  • This dust and smoke which is more or less contained in the housing 7 around the working device 5 moves up the lower conveyor belt 11. In case no preventive measure is taken, the dust may just escape to the environment surrounding the working machine 1.
  • the liquid mixture of water and dust binding agent sprayed onto the fragmented material has a high capability of entrapping dust particles generated by the fragmented material which in turn is produced by the milling operation of the working device 5 on the working surface 6.
  • the occurence of dust is significantly reduced either in the working space 8, or in the area of the lower conveyor belt 11 where the fragmented material is loaded on the upper conveyor belt 12, or at both locations.
  • the widely dispersed spray pattern which is in the preferred embodiment a conically shaped spray, helps to increase the sprayed area and to generate a fine mist of droplets of the dust binding agent mixture.
  • the dust binding agent used is preferably biodegradable and environmentally not harmful and thus does not generate any problems in this respect.
  • an improvement of the dust handling is achieved by, generally speaking, spraying the water and dust binding agent mixture upon as large a percentage of the generated dust as possible or practical. This is best realized by spraying the mixture onto the fragmented material at a location where the dust can not easily escape to the surrounding environment.
  • confined space is to be understood as an at least parially confined space or a space in which the dust is channeled.
  • the exact choice of where the outlets or spray heads are located and how many are utilized depends on the particular configuration of the working machine which might vary from case to case and is not necessarily limited to the configuration of the working machine 1 of Fig. 1.
  • exisiting spray system for cooling the working device 5 may be also used to spray the water and dust binding agent mixture into the working space 8. In this case, and for an improved dust handling, it is sufficient to simply add the dust binding agent to the water tank 9 of the working machine 1.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Prevention Of Fouling (AREA)
  • Road Paving Machines (AREA)
EP02011273A 2002-05-22 2002-05-22 Système anti-poussière pour machine de construction de chaussées Ceased EP1367176A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP02011273A EP1367176A1 (fr) 2002-05-22 2002-05-22 Système anti-poussière pour machine de construction de chaussées
US10/442,723 US20040036346A1 (en) 2002-05-22 2003-05-21 Dust control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02011273A EP1367176A1 (fr) 2002-05-22 2002-05-22 Système anti-poussière pour machine de construction de chaussées

Publications (1)

Publication Number Publication Date
EP1367176A1 true EP1367176A1 (fr) 2003-12-03

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EP02011273A Ceased EP1367176A1 (fr) 2002-05-22 2002-05-22 Système anti-poussière pour machine de construction de chaussées

Country Status (2)

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US (1) US20040036346A1 (fr)
EP (1) EP1367176A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2000161C2 (nl) * 2006-07-27 2008-01-29 Martinus Hogenes Werkwijze en inrichting voor het tegengaan van stofvorming bij destructiewerkzaamheden.
CN102003180A (zh) * 2010-10-25 2011-04-06 三一重型装备有限公司 一种连续采煤机及其除尘装置
US20140144319A1 (en) * 2012-11-27 2014-05-29 John J. Paoluccio Orbit filter magnets for cyclonic cleaners
FR3031991A1 (fr) * 2015-01-28 2016-07-29 Colas Sa Procede de rabotage de chaussee a abattement de poussieres a l'aide d'une raboteuse mobile
US9890504B2 (en) 2012-12-12 2018-02-13 Vermeer Manufacturing Company Systems and methods for sensing wear of reducing elements of a material reducing machine

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1921968B1 (fr) * 2005-08-26 2011-07-27 Miele & Cie. KG Procede pour traiter la poussiere et dispositifs pour executer un tel procede
DE102006038939B4 (de) * 2006-08-18 2011-06-01 Bucyrus Europe Gmbh Walzenlader für den Untertagebergbau
US20090035110A1 (en) * 2007-08-03 2009-02-05 Woods Jr James D Backfilling apparatus with dual telescopically positionable material dispensers
US8360343B2 (en) 2010-04-30 2013-01-29 Caterpillar Inc. Methods and systems for executing fluid delivery mission
US9805317B2 (en) * 2010-05-19 2017-10-31 Caterpillar Inc. Methods and systems for controlling fluid delivery missions on a site
US20110272511A1 (en) * 2010-05-06 2011-11-10 Hall David R Dust Reduction Mechanism in an Aggregate Removal System
US9604239B2 (en) * 2014-08-01 2017-03-28 Bodygard Llc Self cleaning water nozzle
US9371618B2 (en) 2014-08-25 2016-06-21 Caterpillar Paving Products Inc. Cold planer spray system and method
US10544551B2 (en) * 2016-06-01 2020-01-28 Caterpillar Paving Products Inc. Ventilation system and method for cold planer machine
CN108532414B (zh) * 2018-06-05 2023-05-23 福建泉成机械有限公司 一种沥青混合料搅拌环保处理系统及工艺
CN111406494A (zh) * 2020-05-20 2020-07-14 星光农机(河南)有限公司 适用于花生捡拾收获机的降尘装置
DE102021205190A1 (de) 2021-05-20 2022-11-24 Hyperion Verwaltung Gmbh Arbeitsmaschine und Verfahren zur Reduzierung der Staubentwicklung bei Gleisbauarbeiten

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4325580A (en) * 1979-05-07 1982-04-20 Cmi Corporation Roadway planing apparatus
EP0971075A1 (fr) 1998-07-09 2000-01-12 BITELLI S.p.A. Dispositif d'aspiration et de traitement de poussières produites par les machines de fraisage
US6124366A (en) * 1996-06-28 2000-09-26 Nalco Chemical Company Fluid formulation and method for dust control and wetting enhancement

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4533037A (en) * 1983-03-09 1985-08-06 Material Control, Inc. Telescoping conveyor belt cleaner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4325580A (en) * 1979-05-07 1982-04-20 Cmi Corporation Roadway planing apparatus
US6124366A (en) * 1996-06-28 2000-09-26 Nalco Chemical Company Fluid formulation and method for dust control and wetting enhancement
EP0971075A1 (fr) 1998-07-09 2000-01-12 BITELLI S.p.A. Dispositif d'aspiration et de traitement de poussières produites par les machines de fraisage

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2000161C2 (nl) * 2006-07-27 2008-01-29 Martinus Hogenes Werkwijze en inrichting voor het tegengaan van stofvorming bij destructiewerkzaamheden.
WO2008013444A1 (fr) * 2006-07-27 2008-01-31 Cleandust Bv I.O. Procédé et dispositif pour empêcher la formation de poussière au cours d'un travail de démolition
CN102003180A (zh) * 2010-10-25 2011-04-06 三一重型装备有限公司 一种连续采煤机及其除尘装置
US20140144319A1 (en) * 2012-11-27 2014-05-29 John J. Paoluccio Orbit filter magnets for cyclonic cleaners
US9890504B2 (en) 2012-12-12 2018-02-13 Vermeer Manufacturing Company Systems and methods for sensing wear of reducing elements of a material reducing machine
US10415195B2 (en) 2012-12-12 2019-09-17 Vermeer Manufacturing Company Systems and methods for sensing wear of reducing elements of a material reducing machine
US10947678B2 (en) 2012-12-12 2021-03-16 Vermeer Manufacturing Company Systems and methods for sensing wear of reducing elements of a material reducing machine
FR3031991A1 (fr) * 2015-01-28 2016-07-29 Colas Sa Procede de rabotage de chaussee a abattement de poussieres a l'aide d'une raboteuse mobile
WO2016120545A1 (fr) 2015-01-28 2016-08-04 Colas Raboteuse mobile et procédé de rabotage de chaussée à abattement de poussières par une raboteuse mobile

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