EP0971075A1 - Suction and handling device for dust produced by scarifiers - Google Patents
Suction and handling device for dust produced by scarifiers Download PDFInfo
- Publication number
- EP0971075A1 EP0971075A1 EP99113115A EP99113115A EP0971075A1 EP 0971075 A1 EP0971075 A1 EP 0971075A1 EP 99113115 A EP99113115 A EP 99113115A EP 99113115 A EP99113115 A EP 99113115A EP 0971075 A1 EP0971075 A1 EP 0971075A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- milling drum
- handling device
- dust
- suction
- conveyor belt
- 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
Images
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
-
- 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 invention concerns a device to be applied to scarifiers tor road surfaces, especially suitable tor sucking up dust and fumes that are produced when removing the actual road surfaces.
- scarifiers are machines used to remove the surface asphalt that covers road courses. They basically involve a frame mounted on wheels, provided with a tractor engine, a driver's cab and at least one milling drum set against the road surface to be broken up.
- the milling drum is made to rotate and, by means of the protruding tines covering its circumference, it breaks up the road surface that it is set against and which it is made to break down into.
- the material resulting from said breaking up process can still be implemented tor subsequent uses and is therefore removed from the milling drum work area before continuing the digging.
- the most recent scarifiers are fitted with a conveyor belt that continuously collects the material resulting from breaking up the road surface, directly during the actual breaking up process, using the centrifugal force that the milling drum exerts on the material as it is being broken up.
- the conveyor belt then channels the material that has been broken up towards a second elevator belt that is part of an adjustable loader that allows the material to be fed into the body of a dump truck that drives alongside the scarifier while it is working.
- the broken up material can then be transported to a collection site, ready tor subsequent reuse.
- One of the major problems found when using the aforementioned scarifiers is that a substantial quantity of bitumen dust and fumes are produced as a result of the enormous friction that the ripper equipment exerts on the asphalt surface to remove it completely.
- the cloud of dust and fumes mainly builds up around the work area, but it rapidly spreads upwards and along the two belts, especially around the conveyor, which collects and moves the material away from the milling drum.
- a similar harmful environment and visual disturbance also affect the other workers assisting in the work of breaking up the road surface, not to mention passers by that are more or less surrounded by clouds of dust and fumes raised by the machine.
- This invention intends to prevent these damaging effects and overcome the inconveniences mentioned above.
- One particular scope of the invention is to produce a scarifier fitted with a means of sucking the harmful dust and fumes that are produced during the breaking up of road surfaces.
- a dust suction and handling device on a scarifier that, in accordance with the main claim, includes at least one milling drum, at least one conveyor belt for the removed material adjacent to the milling drum and one elevator belt to channel the material into a collection site, and it is characterised in that it includes:
- the dust suction and handling device is fitted with a centrifugal suction fan driven by a hydraulic motor and connected to a cyclone filter designed to withhold the harmful fumes and also separate the solid particles suspended in the dust.
- the invention device proves its advantage when applied to a scarifier 1 that has the milling drum 2 on its underside fitted with a mass of protruding tines 21 covering its circumference designed to break up a road surface as wide as the drum itself.
- said milling drum is made to rotate by a suitable motor and raise the broken up material by launching it by centrifugal force over the conveyor belt 3 that is running in a continuous loop.
- the invention device prevents this diffusion by means of the housing 4 that covers the milling drum 2 over its front section, where there is the greatest turbulence, and is connected with the tunnel 5 that covers the conveyor belt 3 along its whole length towards the second elevator belt 13.
- Said tunnel 5 has louvers 51 along both side walls to suck in air from the outside so that the dust around the broken up material on the conveyor belt is sucked up by the action of the centrifugal suction fan 7 in the housing 4.
- Said duet channels the dust and fumes towards the centrifugal suction fan 7 that has a vertical branch 72 in line with its suction inlet 71 to collect free falling larger sized solid particles contained in the sucked dust.
- the bottom of this branch is closed by a hatch 73 that is only opened under the weight of a pre-set quantity of deposited material, which is discharged onto the ground and the hatch 73 then returns shut immediately afterwards.
- the centrifugal suction fan 7 is preferably driven by a hydraulic motor, electrically controlled by the operation of the milling drum.
- This suction fan has its outlet 74 coupled to the inlet of the filter 11 that separates the solid particles still present in the dust, discharging them by gravity into a vertical chute 12 that has its bottom fitted with a tipping discharge hatch 121 similar to the one described above.
- the outlet flue 111 of the filter only gives off purified air, that is thereby of no harm to persons and environment.
- the example illustrated in the attached diagram belongs to the most recent generation of scarifiers that incorporates a second elevator belt 13 on its front, belonging to a loader 14. Said loader can be adjusted in height to suit the position of a dump truck's body that proceeds before the scarifier and collects the broken up material.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Repair (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Prevention Of Fouling (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
Description
- A tunnel-like hood covering at least the conveyor belt
- A housing enshrouding the milling drum and demarcating at least one suction area located to the rear and top of said milling drum, and covering the whole width of the drum and two upper lateral areas that enfold said mitting drum and that are connected with said suction area
- A duct that links said suction area with the suction inlet of a centrifugal fan
- A motor driven centrifugal fan with its outlet connected to a filter
- A filter designed to withhold the solid components of the dust and fumes.
- fig. 1 shows the side view of the invention device applied to the most commonly used scarifier
- fig. 2 shows the housing of the milling drum of the invention device.
Claims (5)
- Dust handling device on a self-driven scarifier, which includes at least one milling drum, at least one conveyor belt of the broken up material adjacent to the milling drum and an elevator belt to channel the material into a collection site, characterised in that it includes:a tunnel-like hood (5) covering at least the conveyor belt (3);a housing (4) enshrouding the milling drum (2; 21) and demarcating at least one suction area (9) located to the rear and top of said milling drum and covering the whole width of the drum and two upper lateral areas (8; 8') that enfold said milling drum and that are connected with said suction area (9);a duct (10) that links said suction area (9) with an inlet (71) of a centrifugal fan (7);a centrifugal fan (7) driven by means of motors, with its outlet (74) connected to a filter (11);a filter (11) designed to withhold the solid components of the dust and fumes.
- Dust handling device, according to claim 1), characterised in that said tunnel-like hood (5) of the conveyor belt (3) also extends to cover the elevator belt (13), having two sections of cover connected together by means of elastic joints (15).
- Dust handling device, according to claims 1) or 2), characterised in that the tunnel-like hood (5) of the conveyor belt (3) has a mass of louvers (51) along its side walls where the suction air of the centrifugal fan enters.
- Dust handling device, according to the previous claims, characterised in that the centrifugal suction fan (7) has a vertical chute (72) under its inlet (71), with its bottom fitted with a tipping hatch (73) that opens itself under the action of the weight of the larger sized solid particles sucked through the duct (10) connecting the housing (4).
- Dust handling device, according to any of the previous claims, characterised in that the filter (11) communicates with a vertical chute (12) where the smaller solid particles deposit as they are separated by said filter, said chute being fitted with a hatch (121) that opens by weight.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITVI980132 | 1998-07-09 | ||
IT98VI000132A ITVI980132A1 (en) | 1998-07-09 | 1998-07-09 | DEVICE FOR SUCTION AND TREATMENT OF DUST PRODUCED BY SCARIFIER MACHINES |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0971075A1 true EP0971075A1 (en) | 2000-01-12 |
EP0971075B1 EP0971075B1 (en) | 2005-11-09 |
Family
ID=11426759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99113115A Expired - Lifetime EP0971075B1 (en) | 1998-07-09 | 1999-07-07 | Scarifier with suction and handling device for dust |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0971075B1 (en) |
AT (1) | ATE309416T1 (en) |
DE (1) | DE69928176T2 (en) |
IT (1) | ITVI980132A1 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10047443A1 (en) * | 2000-09-21 | 2002-04-25 | Manfred Rottler | Procedure for removal of floor coverings laid on underfloors entails use of mobile milling and breaking machine, with dusty air drawn from housing by suction unit, and broken up material drawn up by high vacuum sucker |
EP1367176A1 (en) | 2002-05-22 | 2003-12-03 | BITELLI S.p.A. | Dust control system for a road working machine |
WO2003100172A1 (en) | 2002-05-28 | 2003-12-04 | Wirtgen Gmbh | Suction device and suction method for the disposal of dust in milling machines |
DE102004007716B3 (en) * | 2004-02-16 | 2005-06-16 | Wirtgen Gmbh | Road construction asphalt milling machine has dust suction unit located well away from rotating milling tool |
WO2010045952A1 (en) * | 2008-10-21 | 2010-04-29 | Marini S.P.A. | Road planer for milling road-surface |
US8220875B2 (en) | 2008-03-12 | 2012-07-17 | Marini S.P.A. | Road planer for milling road surface |
US8349835B2 (en) | 2008-02-14 | 2013-01-08 | Shenyang Pharmaceutical University | Aromatic ring fused triazine derivatives and uses thereof |
US8985701B2 (en) * | 2012-07-12 | 2015-03-24 | Caterpillar Paving Products Inc. | Cold planer having multi-inlet exhaust system |
CN107264650A (en) * | 2016-04-06 | 2017-10-20 | 宝马格有限公司 | Including adjustable driver's cabin from running machine particularly construction machine and the method for adjusting the driver's cabin from running machine |
CN112136391A (en) * | 2020-09-29 | 2020-12-29 | 徐东才 | A gardens meadow planting equipment for municipal works |
CN114808627A (en) * | 2022-06-29 | 2022-07-29 | 湖北省高创公路工程咨询监理有限公司 | Highway construction quality supervision equipment and method |
EP4296430A1 (en) * | 2022-06-22 | 2023-12-27 | BOMAG GmbH | Soil milling machine and method for operating a dust extraction device of a soil milling machine |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012216262B3 (en) * | 2012-09-13 | 2013-10-17 | Wirtgen Gmbh | Roll housing for a work roll of a construction machine or mining machine, construction machine or mining machine, and method for monitoring the condition of a work roll of a construction machine or mining machine |
CN212477886U (en) * | 2020-03-11 | 2021-02-05 | 成都市猎石者破岩科技有限责任公司 | Rock breaking device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4561145A (en) * | 1984-02-16 | 1985-12-31 | Latham Winchester E | Continuous sweep for road planing and milling machines |
US5063713A (en) * | 1990-12-20 | 1991-11-12 | Accent Stripe Inc. | Surface abrading and particle collection device |
US5378081A (en) * | 1994-02-16 | 1995-01-03 | Swisher, Jr.; George W. | Milling machine with front-mounted cutter |
-
1998
- 1998-07-09 IT IT98VI000132A patent/ITVI980132A1/en unknown
-
1999
- 1999-07-07 AT AT99113115T patent/ATE309416T1/en not_active IP Right Cessation
- 1999-07-07 EP EP99113115A patent/EP0971075B1/en not_active Expired - Lifetime
- 1999-07-07 DE DE69928176T patent/DE69928176T2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4561145A (en) * | 1984-02-16 | 1985-12-31 | Latham Winchester E | Continuous sweep for road planing and milling machines |
US5063713A (en) * | 1990-12-20 | 1991-11-12 | Accent Stripe Inc. | Surface abrading and particle collection device |
US5378081A (en) * | 1994-02-16 | 1995-01-03 | Swisher, Jr.; George W. | Milling machine with front-mounted cutter |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10047443A1 (en) * | 2000-09-21 | 2002-04-25 | Manfred Rottler | Procedure for removal of floor coverings laid on underfloors entails use of mobile milling and breaking machine, with dusty air drawn from housing by suction unit, and broken up material drawn up by high vacuum sucker |
DE10047443C2 (en) * | 2000-09-21 | 2003-11-20 | Manfred Rottler | Method and device for removing floor coverings |
EP1367176A1 (en) | 2002-05-22 | 2003-12-03 | BITELLI S.p.A. | Dust control system for a road working machine |
US7422390B2 (en) | 2002-05-28 | 2008-09-09 | Wirtgen Gmbh | Milling machine for machining ground surfaces as well as a method for the disposal of dusts and fumes produced during the milling at a milling machine |
DE10223819A1 (en) * | 2002-05-28 | 2003-12-24 | Wirtgen Gmbh | Milling machine for spreading floor surfaces, as well as method for generating dusts and vapors generated during milling on a milling machine |
DE10223819B4 (en) * | 2002-05-28 | 2005-05-12 | Wirtgen Gmbh | Milling machine for processing soil surfaces, and method for disposing of generated during milling dust and vapors on a milling machine |
WO2003100172A1 (en) | 2002-05-28 | 2003-12-04 | Wirtgen Gmbh | Suction device and suction method for the disposal of dust in milling machines |
DE102004007716B3 (en) * | 2004-02-16 | 2005-06-16 | Wirtgen Gmbh | Road construction asphalt milling machine has dust suction unit located well away from rotating milling tool |
US7219964B2 (en) | 2004-02-16 | 2007-05-22 | Wirtgen Gmbh | Milling machine as well as method for working ground surfaces |
US8349835B2 (en) | 2008-02-14 | 2013-01-08 | Shenyang Pharmaceutical University | Aromatic ring fused triazine derivatives and uses thereof |
US8220875B2 (en) | 2008-03-12 | 2012-07-17 | Marini S.P.A. | Road planer for milling road surface |
CN101970759B (en) * | 2008-03-12 | 2014-05-07 | 马林公司 | Improved road planer for milling road-surface |
WO2010045952A1 (en) * | 2008-10-21 | 2010-04-29 | Marini S.P.A. | Road planer for milling road-surface |
US8985701B2 (en) * | 2012-07-12 | 2015-03-24 | Caterpillar Paving Products Inc. | Cold planer having multi-inlet exhaust system |
CN107264650A (en) * | 2016-04-06 | 2017-10-20 | 宝马格有限公司 | Including adjustable driver's cabin from running machine particularly construction machine and the method for adjusting the driver's cabin from running machine |
CN107264650B (en) * | 2016-04-06 | 2021-07-20 | 宝马格有限公司 | Self-propelled machine, in particular construction machine, comprising an adjustable cab and method for adjusting the cab of a self-propelled machine |
CN112136391A (en) * | 2020-09-29 | 2020-12-29 | 徐东才 | A gardens meadow planting equipment for municipal works |
EP4296430A1 (en) * | 2022-06-22 | 2023-12-27 | BOMAG GmbH | Soil milling machine and method for operating a dust extraction device of a soil milling machine |
CN114808627A (en) * | 2022-06-29 | 2022-07-29 | 湖北省高创公路工程咨询监理有限公司 | Highway construction quality supervision equipment and method |
Also Published As
Publication number | Publication date |
---|---|
DE69928176T2 (en) | 2006-08-03 |
DE69928176D1 (en) | 2005-12-15 |
ATE309416T1 (en) | 2005-11-15 |
ITVI980132A1 (en) | 2000-01-09 |
EP0971075B1 (en) | 2005-11-09 |
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