EP1772244A1 - Coupe amelioree du granite - Google Patents

Coupe amelioree du granite Download PDF

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Publication number
EP1772244A1
EP1772244A1 EP05857276A EP05857276A EP1772244A1 EP 1772244 A1 EP1772244 A1 EP 1772244A1 EP 05857276 A EP05857276 A EP 05857276A EP 05857276 A EP05857276 A EP 05857276A EP 1772244 A1 EP1772244 A1 EP 1772244A1
Authority
EP
European Patent Office
Prior art keywords
sawing
fact
shot
mud
jacks
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.)
Withdrawn
Application number
EP05857276A
Other languages
German (de)
English (en)
Other versions
EP1772244A4 (fr
Inventor
Luis Castro Gomez
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
Publication of EP1772244A1 publication Critical patent/EP1772244A1/fr
Publication of EP1772244A4 publication Critical patent/EP1772244A4/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B28D7/04—Accessories specially adapted for use with machines or devices of the preceding groups for supporting or holding work or conveying or discharging work
    • 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
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/025—Use, recovery or regeneration of abrasive mediums
    • 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
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/06—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with reciprocating saw-blades
    • 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

Definitions

  • the aim of sawing granite is to obtain slabs that are 1 cm thick or more for use in the construction of buildings and public works, on the floors or walls, and also for decoration purposes.
  • the starting point is blocks ranging from 1 to 12 m 2 that weigh up to 32 tonnes.
  • the sawing process is carried out with alternately moving multi-strip machines.
  • This patent makes the following six sawing improvements: the way the blocks to be sawn are positioned, the alignment of the sawing strips, the content of the sawing detritus in the sawing mud, the complete recovery of the limewater in the waste, the way of saving shot and the way of controlling the shot content in the sawing mud.
  • the first strip that is mounted on each frame is positioned under some notches or signs made by the manufacturer of the machine, in such a way that the strip runs parallel to the movement of the machine, and the rest of them are mounted parallel to the first one, with the aid of calibrated separators.
  • the frame becomes misshapen with the passage of time or because of repairs or adjustments made to the machine, in such a way that there could be a deviation of several millimetres with respect to the direction in which the frame is moving. There are no known patents in this field either.
  • Patent 200200010 An explanation of how to save it is given in Patent 200200010 (7). This patent describes a new technique that is easier to apply.
  • Patent Euro PCT 99913325 there is a method that claims to explain how to carry out this control without washing the mud and weighing the separated shot automatically, as in Spanish patent 8700697 , or manually.
  • the width of the groove that is required for sawing is the sum total of the following factors: a) Thickness of the strip 4 mm b) Twice the maximum size of the shot 2 mm c) Excess due to different reasons 0.3 mm 6.3 mm
  • the groove ranges from 6.5 to 8 mm, with an average 10% extra cost of sawing, and a loss of initial material amounting to 3%, as well as a longer sawing time.
  • the manufacturers of sawing machinery put reference marks on the frames to align the strips with the required precision, but with the passage of time the frames become slightly misshapen, which becomes worse after repairs and readjustments, leading to a misalignment of a few millimetres in the 6 m that separate the supports from the strips and to the aforementioned excess groove.
  • the strips are realigned frequently once they are mounted, using a precision comparator whose degree of precision is similar to the ones used by lathe operators, which will be fitted to a tripod either supported on a rigid platform on the floor, or directly onto a piece of steel plating placed on the blocks, if the attachment is magnetic.
  • the comparator will be wheeled, and it will be fitted with its shaft lying vertically, in contact with each strip that has to be checked or in contact with a magnetic plate stuck to the strip, if the latter happens to be grooved the machine will then be moved slowly so that the side deviation can be observed, the alignment is then corrected so that it is negligible or non-existent.
  • the ideal sawing mud is a substance with a viscosity that is suitable for supporting the shot and flowing into the grooves, without any detritus at the inlet, and the shot must also be suitable for the machine and type of stone, but this mud without detritus requires costly facilities for recovery and treatment purposes, so, to demonstrate the noiseless sawing method and other sawing techniques, and in general to avoid having to make large investments, it is necessary to saw with mud containing sawing detritus, but in lower proportions than usual, achieving the right viscosity by adding fine and soft dust, in such a way that the shot remains in suspension and goes easily down the grooves 6 or more millimetres wide.
  • the mud that does not fit in the auxiliary tank at the end of a sawing session builds up in another supplementary tank, in such a way that no mud is discharged without the shot in it being recovered. Furthermore, all the water containing shot and the water that comes from washing the plates, the trucks and the water collected in the sawing and washing zones, flows into these supplementary tanks, where it settles, the shot being retained and only water free of shot is allowed to drain away. If possible, the size of the auxiliary tanks could be increased, if not, large tanks will have to be constructed in the future.
  • the shot content in the sawing mud can be measured in a vertical tube that takes the mud to the cyclone, which has a small diameter, made of non-magnetic material, one or several commercial inductive proximity switches being arranged around it, either running parallel or one after another, their secondary currents or voltages being processed in an automaton or small computer nearby, with a display or screen for observing the measurement and controls for programming, equipped with outlets for an alarm if the content is very low, for starting the shot feeder if the content is the minimum programmed, for stopping it if the maximum level is reached and for another outlet for an alarm if the amount is excessive, as well as other outlets for connecting up to a general computer linked to the sawing machine.
  • the rigid positioning of the blocks allows for a total saving of 4% on the cost of sawing, including the labour charges.
  • the alignment of the strips makes it possible to save an average of 10% on sawing and 4% on material.
  • the mud mixture containing detritus and fine or soft dust saves on having to invest more than 30,000 Euros for every 400 strips working, which would be required to obtain the ideal mud, without detritus at the intake, although the same effect is not achieved and the fine and soft dust is used up.
  • the technique for recovering all the limewater amounts to a slight saving on carbon dioxide gas.
  • the recovery of the shot saves on having to invest on equipment and paying labour charges, and the technique for measuring the shot content saves on having to invest and on expenses, because the equipment is cheap and manageable.
  • the blocks would be positioned in the following way: putting the required concrete at the base of the trucks, at a height that adapts to the irregularities of the support zone for the blocks, leaving a gap for four hydraulic jacks at the ends of the support zones; placing the four jacks in extended form and closed if they are hydraulic; moving the block with the help of the crane close to its position a few centimetres from the height of the jacks; if necessary putting some devices below one or two of the jacks to raise their height; after that, lowering the block until it lies on the jacks; if it is observed that by lowering the jacks it is only possible to true up the block, the slings are moved away; if this is not the case, the block is raised a few centimetres and further supplementary items are placed under the jacks, and the operation is repeated; the truing up is then done with the jacks; finally, the jacks
  • a programmed endless-screw feeder can be used, and the excess mud can also be recirculated with the aid of a pump with programmed operation, or with a tank equipped with an inverted siphon emptying system, whose level goes down as the sawing process advances, in such a way that at the end of the process the tank is completely empty.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP05857276A 2004-07-27 2005-07-26 Coupe amelioree du granite Withdrawn EP1772244A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200401857A ES2246168B1 (es) 2004-07-27 2004-07-27 Aserrado de granito mejorado.
PCT/ES2005/000418 WO2006013225A1 (fr) 2004-07-27 2005-07-26 Coupe amelioree du granite

Publications (2)

Publication Number Publication Date
EP1772244A1 true EP1772244A1 (fr) 2007-04-11
EP1772244A4 EP1772244A4 (fr) 2010-07-21

Family

ID=35786895

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05857276A Withdrawn EP1772244A4 (fr) 2004-07-27 2005-07-26 Coupe amelioree du granite

Country Status (3)

Country Link
EP (1) EP1772244A4 (fr)
ES (1) ES2246168B1 (fr)
WO (1) WO2006013225A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1087073B (de) * 1957-08-19 1960-08-11 Skandinaviska Granit Aktiebola Steinsaege
IT1238882B (it) * 1990-02-28 1993-09-04 Giorgini Maggi Srl Procedimento per il lavaggio ed il controllo della composizione di torbide abrasive usate nel taglio di graniti e pietre similari e relativa apparecchiatura.
WO1994017969A2 (fr) * 1993-02-02 1994-08-18 Luis Castro Gomez Ameliorations apportees a des machines et a des procedes de coupe de pierres
ES2140353B1 (es) * 1998-07-23 2000-08-16 Gomez Luis Castro Metodo de aserrar granitos.
ES2192977B1 (es) * 2002-01-03 2005-02-16 Luis Castro Gomez Maquina, metodo y aparato para aserrar granito.

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *
See also references of WO2006013225A1 *

Also Published As

Publication number Publication date
EP1772244A4 (fr) 2010-07-21
WO2006013225A1 (fr) 2006-02-09
ES2246168A1 (es) 2006-02-01
ES2246168B1 (es) 2007-03-16

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