Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
  • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
  • F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
  • F23J3/02—Cleaning furnace tubes; Cleaning flues or chimneys
  • F23J3/026—Cleaning furnace tubes; Cleaning flues or chimneys cleaning the chimneys
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
  • B25D—PERCUSSIVE TOOLS
  • B25D11/00—Portable percussive tools with electromotor or other motor drive
  • B25D11/06—Means for driving the impulse member
  • B25D11/066—Means for driving the impulse member using centrifugal or rotary impact elements
• • 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
• • 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
  • B28D1/186—Tools therefor, e.g. having exchangeable cutter bits
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F21/00—Implements for finishing work on buildings
  • E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
  • E04F21/06—Implements for applying plaster, insulating material, or the like
  • E04F21/14—Implements for applying plaster, insulating material, or the like in shafts, e.g. chimneys
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
  • E04G23/00—Working measures on existing buildings
  • E04G23/008—Working measures on existing vertical ducts, e.g. chimneys, garbage chutes
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
  • E04G23/00—Working measures on existing buildings
  • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging

Definitions

• the invention relates to a method and a tool for increasing the width in the clear of a chimney or the like.
• the method and the tool according to the invention may for instance be used for the cleaning of chimneys, combust'ion chambers, boilers and the like, which on internal surfaces may be covered with coatings, for instance tarry deposits.
• a tool accor ⁇ ding to the invention is of the kind that is provided with a holder located at the end of a rotatable shaft, to which holder are attached chains, for instance consisting of simple, elongated, ring-shaped chain links.
• tarry deposits may occur, same being very difficult to remove by ordinary sweeping, as the coatings have a considerable mechanical strength. Thus it may take several hours to remove tarry deposits from a chimney by the tradi ⁇ tional methods. Besides, tarry deposits may block up a chimney to such a degree that the use of it is reckless. These tarry deposits especially occur if different kinds of fuel are burned as it is for instance the case with boilers especially adapted for the purpose of solid as well as liquid fuel bur ⁇ ning.
• Similar coatings may furthermore occur in combustion chambers and boilers, where it may be difficult effec ⁇ tively to process the coatings with a broom or the like.
• One object of the invention is to provide a method and a tool, same being able to remove tarry deposits from the internal surface of a chimney rapidly and effectively.
• Another object of the invention is to provide a method that can be used for the increasing of the width in the clear of a chimney in comparison with the existing one.
• An especially preferred aspect of the present inven ⁇ tion is, as disclosed in claim 3, to increase the width in the clear of a chimney in comparison with the original one, same surprisingly being possible by the method according to the invention, as it is thus possible e.g. to remove inner parts of a chimney, having been destroyed by a chimney fire, or to create a wider clear, e.g. by removing an existing wrongly dimensioned chimney lining, this having so far not been possible without pulling down the chimney and rebuild it and including those inconveniences resul ⁇ ting herefrom as regards flashing, bricklaying and painting as well as waste of resources.
• the invention relates to a tool for increasing the width in the clear of a chimney or the like, same tool being provided with a holder located at the end of a rotatable shaft, to which holder are attached chain parts, for instance consist ing of simple, elongated, ring-shaped chain links.
• the tool according to the invention is characterized in that the chains are located in several levels at right angles to the axis of rotation and are firmly fixed.
• This tool is very simple and makes it possible to process the internal surface of a chimney with strokes of a high intensity from several chains as stated above.
• a tool which is simple and cheap to manufacture, and which may be lowered into the openings of chimneys with very thick coatings, in order then to be started in the very chimney.
• One or more extension shafts may, if desired, be inserted, so that the distance between the rotor head and the guiding unit can be adjusted to the current requirements. Furthermore, the extension shafts makes it possible to use the tool for the cleaning of boilers etc., where the tool is not lower ⁇ ed, as the shafts are creating a handle for the rotor head.
• FIG. 1 schematically shows a tool according to the invention during the lowering into a chimney
• FIG. 3 schematically a tool according to the invention during the cleaning of a combustion chamber
• FIG. 4 a sectional view of a rotor head with chains according to the invention
• fig. 5 schematically the tool used by the method according to the invention for increasing the width in the clear of a chimney in comparison with the origi ⁇ nal one
• fig. 6 a sectional view along the line a- a in fig. 5 in a chimney with tradition- al brick-built construction
• fig. 7 a sectional view along the line b- b in fig. 5 in the chimney in fig. 6 after the increasing of the width in the clear and insertion of a lining and casting,
• fig. 8 a sectional view corresponding to same in fig. 6 in a chimney of tile concrete elements
• fig. 9 a sectional view corresponding to same in fig. 7 in the chimney shown in fig. 8,
• fig. 10 a sectional view corresponding to same in fig. 6 in a chimney of light concrete elements
• fig. 11 a sectional view corresponding to same in fig. 7 in the chimney shown in fig.
• a guiding unit 3 is shown, which is advantageously an electric hand " drill.
• the guiding unit 3 is connected with a flexible shaft 6 by means of an electric coupling 7 which can be disconnected.
• the guiding unit can advantageously be located on the roof, as the flexible coupling 7 as well as the distance between the guiding unit 3 and the chimney 1 has the effect that during operation the guiding unit 3 will not be moving on the roof.
• the flexible shaft 6 is in the opposite end connected to a rotor head 4, on which are mounted a number of chains 5.
• All connections between the guiding unit 3, the fle ⁇ xible shaft 6, the rotor head 4 as well as the rigid extension shafts 8 are made by means of couplings known per se that can be disconnected.
• a more detailed rotor head 4 is shown, on which are mounted four chains 5, same having an odd number of links, and same being firmly fixed through the central links. It is of course possible to use a diffe ' rent number of chains 5, just as these may be connected to the rotor head in various manners known per se, as long as they are firmly fixed.
• the chains 5 are advantageously made from iron or a simi ⁇ lar strong and heavy material, for instance hardened steel, and preferably they have a gauge of metal of 5-6 mm.
• the uttermost links may, if desired, con ⁇ tain diamond dust, which is of particular importance if part of a concrete material is to be removed.
• a height of the "chain pile" of appro ⁇ ximately 10 cm is typically obtained.
• fig. 5 is shown the tool according to the invention for use by the method according to the invention for milling a chimney, in order that the width in the clear is increased.
• a guiding unit 15 through which the flexible shaft 6 has been conducted.
• the guiding unit is located immediately above the rotor head 4 and may have the form of a tube section, same at its ends being provided with two truncated cones, and with a hole through it.
• the diameter of the guiding unit is preferably some ⁇ what shorter than the width in the clear in the chim ⁇ ney, the width of which is to be increased, said guiding unit for a chimney flue with a width in the clear of 15 cm having for instance a diameter of 14.5 cm. Adjusting the length of the chains 5 deter mines how much is to be milled off.
• an "Isoksern"-lining may be milled, removing both the inner tube and the Leca-casting while leaving the chimney itself, and using as driving unit 3 a more powerful engine than for the removal of soot. Then, in the usual manner a new lining can be inserted.
• the tool may also be used for the removal of the interior of an "Anki”-chimney or a "Kaminent”- chimney. By the removal the lining is pulverized and drops to the bottom in the chimney. So far it has not been possible selectively to remove a lining in a chimney, either after a fire or if an increase of the width in the clear of the chimney is required out of consideration for another application than the original.
• a guiding unit in the form of an electric motor or a combustion engine e.g. an engine ranging up to 5 HK would be suitable.
• a 2 HK electric motor may for instance be used.
• the rotor head When using the method and the tool for the removal of coatings such as soot, the rotor head is lowered into the chimney, whereupon the rotation is started. It can easily be heard when the chains have removed the soot and then hit the inner wall of the chimney, whereupon the tool may for instance be pulled upwards until it processes a coating surface again. For the removal of for instance soot coatings it is possible to hold the tool with the hand, as the cleaning is rapily done and the tool is light.
• Figs. 6, 8 and 10 show a sectional view along the line a-a in fig. 5 in three chimneys of a traditional brick-built construction, of tile concrete elements and of light concrete elements, respectively, and fig. 7, 9 and 11 show a sectional view along the line b-b in fig. 5 after "milling" of the chimneys shown in figs. 6, 8 and 10, respectively, and inser- tion of a chimney lining, e.g. an "Isok ⁇ ern"-chimney lining, and after casting around the lining with a mass, e.g. Leca-concrete.
• a chimney lining e.g. an "Isok ⁇ ern"-chimney lining
• lining may also, if desired, be inserted a steel lining, and for the casting around the lining may also be used granula ⁇ ted rock wool, e.g. "Rockwool”-granulate mixed with water or a product called “Fibo", corresponding to "Leca”.
• rock wool e.g. "Rockwool”-granulate mixed with water or a product called "Fibo”, corresponding to "Leca”.
• the chimney shown in fig. 6, built of bricks 17 with mortar joints 18 may according to the method be given a smaller width in the clear by inserting a chimney lining.
• the lining 19 shown in fig. 7 can not be inserted in the chimney until the width in the clear has been increased to such an extent that it corre ⁇ sponds to a hole with limiting surfaces 20, whereupon the void around the lining 19 is filled with e.g. Leca-concrete 21.
• Figs. 8 and 9 show the insertion of a chimney lining 19 in a chimney made of tile concrete elements 22 after removal of the inner parts 24 of the element 22 to such an extent that there is room for a lining 19. After inserting the lining the void around the lining is filled with a mass 21.
• Figs. 10 and 11 show in an analogous manner as figs. 8 and 9 an embodiment of the invention, where a lining 19 is inserted in a chimney of light concrete elements 25 after removal of an inner part 26 thereof and casting of the void around the lining 19 with e.g. Leca-concrete 21.
• the "Leca"-concrete used is preferably made as fol ⁇ lows: Pre-watered Leca-peas with the diameter of 3-10 mm are mixed with cement in the ratio of 1:20. After thorough mixing more water is added until the mixture obtains a ground-moist consistence, and this mixture is carefully poured into the void around the lining without tampering.
• ISO-K.ERN is a registered trade mark for chimney insu ⁇ lation, supplied by Iso-Kaern, Bregner ⁇ dvej 127, DK- 3460 Birker ⁇ d, Denmark.
• KAMINENT is a registered trade mark for an element chimney, supplied by Kahlers Teglvaerk, Teglvaerksvej, Svenstrup, DK-4220 Kors ⁇ r, Denmark.
• ANKI is a registered trade mark for chimney elements and chimney linings, supplied by Petri & Haugsted A/S, Islevdalvej 181, DK-2640 R ⁇ dovre, Denmark.
• ROCKWOOL is a registered trade mark for rock wool, supplied by Rockwool A/S, DK-2640 Hedehusene, Den ⁇ mark.
• LECA is a registered trade mark for products manufac ⁇ tured from expanded clai, supplied by Lemvis-Muller & Co., Vestergade 16, DK-1456 K ⁇ benhavn K.
• FIBO is a registered trade mark for products manufac- tured from expanded clai, corresponding to LECA.

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Mechanical Engineering (AREA)
• Structural Engineering (AREA)
• Civil Engineering (AREA)
• Electrochemistry (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Mining & Mineral Resources (AREA)
• General Engineering & Computer Science (AREA)
• Working Measures On Existing Buildindgs (AREA)
• Cleaning In General (AREA)
• Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
• Cultivation Of Seaweed (AREA)
• Non-Portable Lighting Devices Or Systems Thereof (AREA)
• Incineration Of Waste (AREA)
• Artificial Filaments (AREA)
• Polishing Bodies And Polishing Tools (AREA)
• Lubricants (AREA)
• Manipulator (AREA)
• Absorbent Articles And Supports Therefor (AREA)
• Machines For Laying And Maintaining Railways (AREA)
• Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
• Circuit Arrangement For Electric Light Sources In General (AREA)
• Magnetic Resonance Imaging Apparatus (AREA)

Priority Applications (6)

Applications Claiming Priority (2)

Publications (1)

Family

ID=8117630

Family Applications (1)

Country Status (9)

Cited By (8)

Families Citing this family (2)

Citations (6)

• 1984
  • 1984-06-18 DK DK296584A patent/DK296584D0/da unknown
• 1985
  • 1985-06-14 IE IE1495/85A patent/IE56961B1/en not_active IP Right Cessation
  • 1985-06-14 DE DE8585903230T patent/DE3567091D1/de not_active Expired
  • 1985-06-14 AU AU45471/85A patent/AU4547185A/en not_active Abandoned
  • 1985-06-14 AT AT85903230T patent/ATE39563T1/de not_active IP Right Cessation
  • 1985-06-14 EP EP85903230A patent/EP0185744B2/en not_active Expired - Lifetime
  • 1985-06-14 WO PCT/DK1985/000060 patent/WO1986000391A1/en active IP Right Grant
• 1986
  • 1986-02-05 DK DK056886A patent/DK160217C/da not_active IP Right Cessation
  • 1986-02-11 NO NO86860472A patent/NO161636C/no not_active IP Right Cessation
  • 1986-02-17 FI FI860699A patent/FI88959C/fi not_active IP Right Cessation

Patent Citations (6)

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