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WO2002064340A1 - Procede d'enlevement d'une couche externe de maçonnerie, et dispositif d'enlevement de la couche externe, notamment de mortier de jointoiement - Google Patents

Procede d'enlevement d'une couche externe de maçonnerie, et dispositif d'enlevement de la couche externe, notamment de mortier de jointoiement Download PDF

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Publication number
WO2002064340A1
WO2002064340A1 PCT/DE2002/000491 DE0200491W WO02064340A1 WO 2002064340 A1 WO2002064340 A1 WO 2002064340A1 DE 0200491 W DE0200491 W DE 0200491W WO 02064340 A1 WO02064340 A1 WO 02064340A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
jet
material dust
dust
water supply
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
PCT/DE2002/000491
Other languages
German (de)
English (en)
Inventor
Peter Marx
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP02712767A priority Critical patent/EP1361941B8/fr
Priority to DE50204770T priority patent/DE50204770D1/de
Priority to AT02712767T priority patent/ATE308410T1/de
Publication of WO2002064340A1 publication Critical patent/WO2002064340A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/18—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools
    • B28D1/183—Hand tools, e.g. portable, motor driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
    • B28D7/02—Accessories specially adapted for use with machines or devices of the preceding groups for removing or laying dust, e.g. by spraying liquids; for cooling work

Definitions

  • the invention relates to a method for removing an outer layer of masonry, in particular grout, in which the outer layer is processed by pneumatically driven grinding or milling and the resulting material dust is bound with water.
  • Masonry especially of grout, consists of a mobile and with
  • Compressed air operated machine for grinding or milling and from one
  • Water supply device with a water supply line for binding the dry material dust.
  • the outer layer of masonry is removed with the help of a mobile and electrically operated milling or grinding tool down to a clean surface.
  • Mobile and electrically operated devices with face milling cutters or with disc or cup grinding wheels are generally used to machine these smooth surfaces.
  • Working with these tools creates an extraordinary amount of dust, which can only be shielded from the surrounding area by means of complex planning of the workplace. The more the dust development within the planning, the health of the worker and the tools mechanically and the field of vision severely restricted for the worker.
  • a device for processing smooth surfaces is described for example in DE 38 08 376 AI, with which the lining of a chimney draft is removed and prepared for a new order and which has a pneumatic drive instead of the usual electric drive.
  • This device therefore consists of a fluid compressor and a fluid motor, both of which are connected to one another via a fluid line.
  • the fluid motor has a milling tool adapted to the dimensions of the chimney draft and a guide line for inserting the milling tool into the chimney draft.
  • At the bottom of the chimney draft there is a suction nozzle with a suction line leading to a vacuum cleaner.
  • Healthy masonry often has weathered joints, which then also have to be freed from the old joint material and prepared for re-grouting.
  • grinding tools are known as flexes or angle grinders and generally have a dry grinding wheel.
  • the grinding tools are equipped with a depth stop to limit the grinding depth. With this grinding tool, an upper and a lower cut are worked into the setting joint, so that in the middle of the wall joint a web in the old joint material remains. This remaining web in the setting joints and the complete joint material in the butt joints are then removed with a hammer drill.
  • a vacuum cleaner system is generally used again, but it only absorbs and disposes of a small proportion of the dust material that is produced, as already described.
  • the dust pollution for the worker, for the environment of the construction site and for the entire environment is unacceptably high.
  • DE 39 43 076 AI for example, a hand-held device with a milling or grinding wheel is described, in which a water spray nozzle is provided, which is arranged within the outlet nozzle for the material dust that has formed and which is directed in the direction of the conveying movement of the material dust. This wets the dry material dust and later disposes of it.
  • the water jet nozzle is arranged in the direction of rotation of the grinding wheel and in the conveying direction of the material dust behind the area where the material dust originates.
  • the invention is therefore based on the object of developing a method for removing an outer layer of masonry and device for removing grout in the present genus, in which the formation of dust is largely prevented.
  • this problem is solved in that material dust that arises is bound with water in its area of origin.
  • Appropriate design options for the method result from subclaims 2 and 3.
  • the object is achieved in that the water supply line (13) is arranged in front of the area where the material dust originates and with its opening is directed towards the area where the material dust is created.
  • Useful embodiments of the device result from subclaims 5 to 8.
  • the device is simple and therefore inexpensive to manufacture and, due to its low weight, easy to handle.
  • the water supply line is equipped at its mouth with a mouthpiece that is flanged directly onto the splash guard of the housing.
  • the water jet hits the rotating grinding wheel, which smashes and atomizes the water jet and transports the water to the area where the material dust is created.
  • the method and the device is not limited to the preparation of masonry joints, but can be used for all work where the removal of materials creates dry and harmful dust.
  • Fig. 2 the device with a nozzle attached to the splash guard for the water supply line.
  • the device for removing joint material consists of a standard Winkelschleifmasch ne with a housing 1 and a grinding wheel 2.
  • the grinding wheel 2 is covered by a dust cover 3, which in cooperation with the direction of rotation of the grinding wheel 2 releases the removed mortar dust only in one direction is directed away from the body of the worker.
  • the housing 1 has an attached handle 4 and a molded handle 5 made of are aligned approximately at right angles to one another for ergonomic reasons. There are two opposite fastening elements for the attached handle 4 on the housing 1 in order to enable the discharge of the dust either on the one hand or on the other hand by the choice of the position of the attached handle 4.
  • the angle grinder is equipped with a pneumatic drive motor and therefore has a supply line 6 for compressed air between the housing 1 and a compressed air supply system, not shown.
  • an actuating lever 7 is arranged on the housing 1 for the activation and deactivation of the compressed air flow.
  • the water supply device 9 mainly consists of a shut-off valve 10 with a locking lever 11, the shut-off valve 10 being connected on the one hand via a water supply line 12 to a water supply system, not shown.
  • the shut-off valve 10 carries a water supply line 13 which is aligned with the effective area of the grinding wheel 2 and thus with the area in which the material dust is created.
  • the water supply line 13 has a water spray nozzle 14 at its end facing the grinding wheel 2.
  • This water spray nozzle 14 is positioned in front of the area where the material dust originates and its nozzle opening is aligned with the area where the material dust originates.
  • the water supply line 13 is preferably equipped with a line joint 15 and 16 at each change of direction, so that the position of the water spray nozzle 14 can be variably adjusted both in terms of its orientation and its distance with respect to the region in which the mortar dust originates.
  • the water spray nozzle 14, viewed in the direction of rotation of the grinding wheel 2 is located in front of the area of origin of the dust jet, so that the spray jet of water can hit the dust jet in the area of origin.
  • the position of the water spray nozzle 14 is selected and the nozzle shape of the water spray nozzle 14 is selected.
  • the water jet emerging from the water spray nozzle 14 is cone-shaped and has a width in the area of origin of the mortar dust that corresponds at least to the width of the dust jet in this area.
  • the water jet emerging from the water spray nozzle 14 should be directed so that the direction of the dust jet is not changed significantly.
  • the water supply device also has a pressure control device, not shown, which makes it possible for the flow rate of the emerging water jet to be continuously adapted to the flow rate of the material dust, so that the water jet reaches the dust jet at all and so that the emerging water jet completely penetrates the dust jet.
  • the water supply line 13 has at its end facing the grinding wheel 2, instead of the water spray nozzle 14, a mouthpiece 17 which is flanged directly onto the splash guard 3, so that the mouth opening is aligned exclusively with the rotating grinding wheel 2.
  • the water thus strikes the rotating grinding wheel 2 in a radial fashion and is transported through the rotating grinding wheel 2 to the borrowing area of the dust jet and is sprayed or atomized on the way there.
  • an adjustable depth stop (not shown in more detail) for adjusting the cutting depth of the grinding wheel 2.
  • the desired cutting depth is first set at the depth stop of the housing 1 and then the compressed air supply system and the water supply system are put into operation. This creates an air pressure sufficient to drive the grinding wheel 2 and a water pressure required to generate a water jet.
  • the water pressure is adjusted to the rotational speed of the grinding wheel 2 with the aid of the pressure control device of the water supply device, so that the flow rate of the water jet has at least the flow rate of the dust jet.
  • the actuating lever 7 for driving the grinding wheel 2 and the locking lever 11 are actuated to generate a water jet and the device with the rotating grinding wheel 2 is attached to the setting joint of the masonry.
  • mortar dust is created in the form of a dust jet, to which a water jet emerging from the water spray nozzle 14 is added in the immediate area of origin. All dry dust particles are completely bound with water, so that a now moistened dust jet is thrown off in a lateral direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Ropes Or Cables (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Pyrrole Compounds (AREA)

Abstract

L'enlèvement de couches externes de maçonnerie, notamment par meulage ou fraisage de couches rongées par les intempéries, entraîne la formation d'une quantité abondante de poussière. On a ainsi mis au point un procédé consistant à lier avec de l'eau la poussière de matériau ainsi produite, et ceci, dans la région même où elle se forme. Le dispositif correspondant est caractérisé en ce qu'il comprend une machine de meulage ou de fraisage à commande pneumatique et un dispositif d'alimentation en eau (9), en ce que le dispositif d'alimentation en eau (9) comprend une ligne d'alimentation en eau (13) et un pulvérisateur d'eau (14), et en ce que le pulvérisateur d'eau (14) est dirigé vers la région où se forme la poussière.
PCT/DE2002/000491 2001-02-14 2002-02-12 Procede d'enlevement d'une couche externe de maçonnerie, et dispositif d'enlevement de la couche externe, notamment de mortier de jointoiement Ceased WO2002064340A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP02712767A EP1361941B8 (fr) 2001-02-14 2002-02-12 Procede d'enlevement d'une couche externe de ma onnerie, et dispositif d'enlevement de la couche externe, notamment de mortier de jointoiement
DE50204770T DE50204770D1 (de) 2001-02-14 2002-02-12 Verfahren zum abtragen einer äusseren schicht eines mauerwerkes und vorrichtung zum entfernen der äusseren schicht, insbesondere von fugenmörtel
AT02712767T ATE308410T1 (de) 2001-02-14 2002-02-12 Verfahren zum abtragen einer äusseren schicht eines mauerwerkes und vorrichtung zum entfernen der äusseren schicht, insbesondere von fugenmörtel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10106761.5 2001-02-14
DE10106761A DE10106761A1 (de) 2001-02-14 2001-02-14 Verfahren zum Abtragen einer äußeren Schicht eines Mauerwerkes und Vorrichtung zum Entfernen der äußeren Schicht, insbersondere von Fugenmörtel

Publications (1)

Publication Number Publication Date
WO2002064340A1 true WO2002064340A1 (fr) 2002-08-22

Family

ID=7673966

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2002/000491 Ceased WO2002064340A1 (fr) 2001-02-14 2002-02-12 Procede d'enlevement d'une couche externe de maçonnerie, et dispositif d'enlevement de la couche externe, notamment de mortier de jointoiement

Country Status (4)

Country Link
EP (1) EP1361941B8 (fr)
AT (1) ATE308410T1 (fr)
DE (2) DE10106761A1 (fr)
WO (1) WO2002064340A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103144206A (zh) * 2012-04-29 2013-06-12 刘开全 一种切割墙体的暗线线槽的带喷雾除尘装置的双刀切割机
CN107013016A (zh) * 2017-04-14 2017-08-04 高豹 一种切槽装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1090538B (de) * 1956-04-26 1960-10-06 Wilhelm Engstfeld Fa Vorrichtung zur Staubniederschlagung beim Schleifen und Polieren von Metallkoerpern od. dgl.
DE2913672A1 (de) * 1979-04-05 1980-10-09 Werner Rasch Vorrichtung an schleifboecken zur entstaubung des anfallenden schleifstaubes
DE3438999A1 (de) * 1984-10-25 1986-04-30 Horst 4600 Dortmund Nathe Verfahren und vorrichtung zur sanierung verfugter flaechen
US4676557A (en) * 1984-07-20 1987-06-30 Cimline, Inc. Cooling system for wheeled saw
US4974907A (en) * 1988-07-26 1990-12-04 Kabushiki Kaisha Koumu Pneumatic cutter for concrete and the like
DE3943076A1 (de) * 1989-12-27 1991-07-04 Hilti Ag Handgeraet mit fraes- oder schleifscheibe
WO2000005032A1 (fr) * 1998-07-23 2000-02-03 Naki Technologies Ltd. Outil de coupe portable et son dispositif auxiliaire

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8323459U1 (de) * 1983-08-16 1983-11-24 Geier, Franz, 8056 Eichenried Vorrichtung zur Bearbeitung von Oberflächen aus Mörtel, Mauerwerk, Beton, Holz oder dgl.
DE8712381U1 (de) * 1987-09-12 1988-02-18 Treutle Maschinenbau, 7144 Asperg Vorrichtung zum Binden des Spaltstaubes bei Steinspaltmaschinen
DE9102026U1 (de) * 1991-02-21 1991-05-16 Neitzert, Bernd, Dipl.-Ing., 5442 Mendig Von Hand zu führender Trennschleifer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1090538B (de) * 1956-04-26 1960-10-06 Wilhelm Engstfeld Fa Vorrichtung zur Staubniederschlagung beim Schleifen und Polieren von Metallkoerpern od. dgl.
DE2913672A1 (de) * 1979-04-05 1980-10-09 Werner Rasch Vorrichtung an schleifboecken zur entstaubung des anfallenden schleifstaubes
US4676557A (en) * 1984-07-20 1987-06-30 Cimline, Inc. Cooling system for wheeled saw
DE3438999A1 (de) * 1984-10-25 1986-04-30 Horst 4600 Dortmund Nathe Verfahren und vorrichtung zur sanierung verfugter flaechen
US4974907A (en) * 1988-07-26 1990-12-04 Kabushiki Kaisha Koumu Pneumatic cutter for concrete and the like
DE3943076A1 (de) * 1989-12-27 1991-07-04 Hilti Ag Handgeraet mit fraes- oder schleifscheibe
WO2000005032A1 (fr) * 1998-07-23 2000-02-03 Naki Technologies Ltd. Outil de coupe portable et son dispositif auxiliaire

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103144206A (zh) * 2012-04-29 2013-06-12 刘开全 一种切割墙体的暗线线槽的带喷雾除尘装置的双刀切割机
CN107013016A (zh) * 2017-04-14 2017-08-04 高豹 一种切槽装置

Also Published As

Publication number Publication date
ATE308410T1 (de) 2005-11-15
DE50204770D1 (de) 2005-12-08
EP1361941A1 (fr) 2003-11-19
EP1361941B8 (fr) 2006-06-14
DE10106761A1 (de) 2002-09-26
EP1361941B1 (fr) 2005-11-02

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