EP2006469A2 - Vorrichtung zum Einspritzen einer Kügelchenisolierung - Google Patents

Vorrichtung zum Einspritzen einer Kügelchenisolierung Download PDF

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Publication number
EP2006469A2
EP2006469A2 EP08011008A EP08011008A EP2006469A2 EP 2006469 A2 EP2006469 A2 EP 2006469A2 EP 08011008 A EP08011008 A EP 08011008A EP 08011008 A EP08011008 A EP 08011008A EP 2006469 A2 EP2006469 A2 EP 2006469A2
Authority
EP
European Patent Office
Prior art keywords
pump
bead insulation
dispensing head
bead
adhesive
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
Application number
EP08011008A
Other languages
English (en)
French (fr)
Other versions
EP2006469A3 (de
EP2006469B1 (de
Inventor
Brendan Mccrea
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 EP2006469A2 publication Critical patent/EP2006469A2/de
Publication of EP2006469A3 publication Critical patent/EP2006469A3/de
Application granted granted Critical
Publication of EP2006469B1 publication Critical patent/EP2006469B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • E04F21/08—Mechanical implements
    • E04F21/085—Mechanical implements for filling building cavity walls with insulating materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
    • B05B7/1481—Spray pistols or apparatus for discharging particulate material
    • B05B7/149—Spray pistols or apparatus for discharging particulate material with separate inlets for a particulate material and a liquid to be sprayed

Definitions

  • This invention relates to apparatus for injecting bead insulation, especially adhesive bonded bead insulation.
  • This system is disadvantageous due to the noise of the compressed air equipment, which typically exceeds 80 dB and, as such, creates a difficult working environment and may exceed legal noise limits.
  • the conventional system requires at least two operatives to control the operation, namely one operative for holding the gun and a second operative to control the air compressor and the supply bead insulation.
  • the force created by the compressed air can damage the beads and the adhesive, and can make the conventional apparatus unsuitable for filling all types of cavities.
  • the compressed air has the effect of reducing the operating temperature of the system by about 5°, which, on cold days, can cause the bead/adhesive to freeze and jam in the gun.
  • the compressed air equipment tends to be heavy and so is difficult to transport and manoeuvre.
  • An apparatus for injecting bead insulation comprising a pump and a dispensing head, the pump having an inlet in fluid communication, during use, with a source of bead insulation, typically dry bead insulation, and an outlet in fluid communication with the dispensing head, wherein the pump is arranged to draw bead insulation from said source into said pump, and to pump said drawn bead insulation to said dispensing head.
  • the apparatus includes, or is connectable to, a source of adhesive, the apparatus further including means for introducing said adhesive into said bead insulation.
  • the dispensing head includes a mixing chamber, arranged to receive bead insulation from said pump and adhesive from said adhesive source.
  • said pump includes an impellor housed in a chamber.
  • the impellor draws bead insulation into the chamber through an axial inlet and expels it from the chamber via a tangential outlet.
  • a first buffer device e.g. in the form of a blow box, is provided between the pump and the source of bead insulation.
  • the buffer device is arranged to provide a buffer storage area for bead insulation.
  • the buffer device has an outlet connected (directly or indirectly) to the pump, and an inlet connected (directly or indirectly to the bead insulation source, the outlet being located in use above the inlet.
  • a second buffer device is provided between the pump and the dispensing head.
  • the buffer device is arranged to provide a buffer storage area for bead insulation.
  • the second buffer device takes the form of a section of conduit with a relatively large width connected to the outlet of the pump.
  • the present invention provides an apparatus for injecting bead insulation into a cavity between two skins of a cavity wall, the apparatus comprising a pump, preferably a centrifugal pump, having a chamber with, preferably, an axial inlet and a tangential outlet, the outlet being in piped communication with a gun and the inlet being in piped communication with a supply of dry bead insulation, the chamber housing an impellor driven by power means, and means being provided to introduce adhesive into the flow of bead insulation prior to discharge into a cavity.
  • a pump preferably a centrifugal pump, having a chamber with, preferably, an axial inlet and a tangential outlet, the outlet being in piped communication with a gun and the inlet being in piped communication with a supply of dry bead insulation
  • the chamber housing an impellor driven by power means, and means being provided to introduce adhesive into the flow of bead insulation prior to discharge into a cavity.
  • the apparatus is particularly suited for injecting insulation between two skins of a cavity wall.
  • Each skin may be formed by building using brick and/or block, or the wall may be formed from an inner skin of natural or composite wood panelling and an outer skin of brick or block, or the wall may be formed of two skins of natural or composite wood panelling.
  • the wood panelling may alternatively be substituted by panelling of any other suitable material, for example glass reinforced plastics material (GRP).
  • GRP glass reinforced plastics material
  • a blow box is desirably provided between the bead supply and the axial inlet.
  • the blow box beneficially has an inlet at or near to its bottom and an outlet at or near to its top, the outlet preferably being at right angles to the inlet.
  • a butterfly valve is provided to adjust the speed of flow of bead insulation passing into the pump.
  • the valve is desirably positioned at or near to the top of the blow box, for example in a release port parallel to the inlet.
  • the apparatus is preferably mountable on a rear part of a box van with the remaining part, forward thereof, being a reservoir for holding the main supply of bead insulation.
  • said introducing means comprises a supply of adhesive held in the pressure vessel and piped therefrom to the gun.
  • the invention provides a method of injecting bead insulation in an apparatus comprising a pump and a dispensing head, the pump having an inlet in fluid communication, during use, with a source of bead insulation, typically dry bead insulation, and an outlet in fluid communication with the dispensing head, the method comprising drawing bead insulation from said source into said pump, and pumping said drawn bead insulation to said dispensing head.
  • the apparatus 5 is particularly suited for injecting bead insulation, especially bonded bead insulation, into a cavity between two skins of a cavity wall (not shown).
  • the apparatus 5 in the preferred embodiment comprises a pump 10, preferably a centrifugal pump, having a chamber 11 with an axial inlet 12 and a tangential outlet 14.
  • the outlet 14 is in fluid communication with a dispensing head, in the preferred form of an injection gun 18, by means of a conduit 16, e.g. a hose, pipe, duct or other means for conveying bead insulation.
  • the inlet 12 is in fluid communication with a supply of dry bead insulation (not shown) by means of a conduit 22, e.g. a hose, pipe, duct or other means for conveying bead insulation, and, preferably, a buffer device in the form of a blow box 28.
  • the chamber 11 houses an impellor 13, or fan, driven, in use, by power means, conveniently in the form of an electric motor 24.
  • the gun 18 has a first operating mechanism 19 for controlling a valve 21 which in turn controls the delivery of bead insulation from the pump 10 to the gun 18.
  • a supply of adhesive is provided in a pressurized vessel 26.
  • a conduit 23 e.g. a pipe or hose duct or other means for conveying adhesive, is provided between the pressurized vessel 26 and the gun 18 for delivering adhesive to the gun 18.
  • the gun 18 has a second operating mechanism 25 for controlling a valve 27 which, in turn, controls the flow of adhesive from the vessel 26 to the gun 18.
  • the adhesive is typically liquid in form.
  • the pressure vessel 26 may be omitted and the gun 18 may be connected to a pumped source of adhesive (not shown), e.g. an adhesive reservoir provided with a pump for delivering the adhesive to the gun 18.
  • a pumped source of adhesive e.g. an adhesive reservoir provided with a pump for delivering the adhesive to the gun 18.
  • the flow of adhesive to the gun may still be controlled by the valve 27 and operating mechanism 25.
  • the gun 18 has a mixing chamber 29 in which the bead insulation and adhesive are mixed before being dispensed from the nozzle 31 of the gun 18.
  • the gun 18 is operable by a single operator (not shown) by means of the operating mechanisms 19, 25. Hence, a single operator is able to control the operation of the apparatus 5.
  • the blow box 28 is provided between the bead supply and pump 10.
  • the blow box 28 has an inlet 30, which may for example be located at or near to its bottom, and an outlet 32 preferably located at or near to its top.
  • the inlet 30 is connected to the conduit 22 to receive bead insulation during use.
  • the outlet 32 is connected to the pump 10, in particular to the inlet 12 of the pump 10, by any suitable means, for example a pipe section 22'.
  • a valve 34 is provided to adjust the speed of flow of bead insulation passing into the pump 10.
  • the valve 34 which may for example comprise a butterfly valve, may be positioned at or near to the top of the blow box 28, but is preferably provided in the pipe section 22', i.e. between the blow box 28 and the pump 10.
  • the valve 34 is arranged to control the flow of air from the environment into the flow of bead insulation.
  • the setting of the valve 34 may be adjusted depending on the distance that the bead has to travel before it is dispensed by the gun 18. For longer distances, the valve 34 may be set to increase the flow of air into the system since this helps carry the bead insulation further.
  • the blow box 28 comprises a chamber located in the path of the bead insulation between the bead supply and the pump 10.
  • the blow box 28 is typically box like in form, e.g. being of substantially rectangular cross section, but may take any other suitable form. For example, it may take the form of a section of conduit (not illustrated), preferably having a bore that is wider than the bore of the conduit 22 that feeds into it.
  • the outlet 32 is preferably located substantially at the, in use, top of the box 20 (and therefore at the top of the chamber) and is typically arranged to be above, in use, the inlet 30.
  • any bead insulation that is located in the blow box 28, or is introduced into the blow box 28, during the time in which the motor 24 is switched off and the impellor is running down, will tend together, under gravity, in the chamber of the blow box 28.
  • the blow box 28 therefore acts as a buffer between the bead supply and the pump 10.
  • the conduit 16 includes a buffer portion 16A adjacent the pump 10. Conveniently, this is provided by a section of the conduit 16 being of larger diameter than the subsequent section of the conduit 16', although may take any other suitable form. Preferably, the transition between the buffer section 16A and the subsequent section 16' takes the form of a funnel.
  • the conduit 16 may have a diameter of approximately 38 mm, while the buffer section 16A has a diameter of approximately 75 mm.
  • the buffer section 16A provides a space in which bead insulation, which would otherwise be held in the chamber 11, to leave the chamber 11 and be stored in the buffer section 16A. This reduces the chance that the bead insulation will jam the impellor 13.
  • the volume of the buffer section 16A is at least equal to the volume of the chamber 11.
  • the valve 34 may be opened to increase the flow of air into the conduit 22'. This has the effect of reducing the quantity of bead being inducted into the conduit 22' from the blow box 28 while providing an increased quantity of air to assist in expelling bead from the chamber 11.
  • the impellor may be arranged to rotate at approximately 1,500 rpm during normal use.
  • the diameter of the impellor may, for example, be in the region of 20 to 40cms.
  • the apparatus 5 is mounted between two stands 51 and 53.
  • the pressure vessel 26 may conveniently also be mounted to the stand 53.
  • the apparatus 5 is capable of injecting bead insulation at pressures that are less than would normally be achieved using a compressed air system. As a result, the apparatus 5 is capable of injecting insulation into relatively fragile structures, for example the inter-leaf cavities of a timber framed building structure.
  • the supply of bead insulation may be provided in any suitable container, for example, a stand-alone silo, or a container or compartment located in the payload area of a van, or any other suitable container.
  • the container includes an air inlet, or at least is not air tight, to allow the pump 10 to create a flow of air by which the bead may be drawn to the pump 10 and then expelled to the gun 18.
  • bead insulation is drawn into the pump 10 via the conduit 22, blow box 28 and pipe section 22', from the bead supply.
  • the bead insulation enters the chamber 11 via inlet 12 and, under the action of the impellor 13, and is driven out of the chamber 11 via outlet 14.
  • the bead insulation is then conveyed to the gun 18 via the conduit 16.
  • the adhesive is also supplied to the gun, under pressure, from the pressurised tank 26 via conduit 23.
  • the operator is able to cause the adhesive and the bead insulation to mix in the mixing chamber 29 and subsequently to be dispensed via the nozzle 31.
  • the adhesive may comprise any suitable bead adhesive or other bonding agent and is typically liquid in form.
  • the bead insulation may comprise beads formed from polystyrene or other thermally insulating material, especially expandable polystyrene (containing an expanding agent, for example, pentane), or foamed plastics particles.
  • the apparatus 5 is relatively compact, and so is amenable to being mounted on a rear part of a van, e.g. a box van (not shown) with the remaining part of the van, forward thereof, being or carrying a reservoir for holding the main supply of bead insulation.
  • a van e.g. a box van (not shown) with the remaining part of the van, forward thereof, being or carrying a reservoir for holding the main supply of bead insulation.
  • the van may be, for example, a 3.5 tonne vehicle rather than, say, a lorry of 7.5 tonne, in which case driver restrictions due to HGV grade requirements are obviated.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP08011008.3A 2007-06-18 2008-06-18 Vorrichtung zum Einspritzen einer Kügelchenisolierung Active EP2006469B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0711756.7A GB0711756D0 (en) 2007-06-18 2007-06-18 Apparatus for injecting bead insulation

Publications (3)

Publication Number Publication Date
EP2006469A2 true EP2006469A2 (de) 2008-12-24
EP2006469A3 EP2006469A3 (de) 2009-05-06
EP2006469B1 EP2006469B1 (de) 2016-08-24

Family

ID=38332297

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08011008.3A Active EP2006469B1 (de) 2007-06-18 2008-06-18 Vorrichtung zum Einspritzen einer Kügelchenisolierung

Country Status (2)

Country Link
EP (1) EP2006469B1 (de)
GB (1) GB0711756D0 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111173236A (zh) * 2020-01-13 2020-05-19 上海家倍得装饰工程有限公司 一种家装用便携式喷涂装置
US20240218678A1 (en) * 2022-12-30 2024-07-04 Certainteed Llc Connector Modules for Loose Fill Insulation Hose and Method of Installing Loose Fill Insulation

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE380374A (de)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2235542A (en) * 1937-08-24 1941-03-18 Wenzel Amanda Building insulation
US3223329A (en) * 1962-01-16 1965-12-14 Ronald A Ross Flocking apparatus
NL182975C (nl) * 1977-09-02 1988-06-16 Shell Int Research Aanvoerstuk voor warmte-isolerend materiaal.
US4151962A (en) * 1977-12-29 1979-05-01 Calhoun Thomas M Apparatus for shredding and blowing foam plastic in place
FR2538829A1 (fr) * 1982-12-29 1984-07-06 S E R A H Sarl Mur comportant une couche isolante, methode pour la fabriquer et appareil pour la mettre en oeuvre
US4768710A (en) * 1987-03-02 1988-09-06 Henry Sperber Fibrous blown-in insulation having homogenous density
US20040124262A1 (en) * 2002-12-31 2004-07-01 Bowman David James Apparatus for installation of loose fill insulation
AU2005223454A1 (en) * 2004-03-18 2005-09-29 Johns Manville System and method for forming an insulation particle/air suspension

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE380374A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111173236A (zh) * 2020-01-13 2020-05-19 上海家倍得装饰工程有限公司 一种家装用便携式喷涂装置
US20240218678A1 (en) * 2022-12-30 2024-07-04 Certainteed Llc Connector Modules for Loose Fill Insulation Hose and Method of Installing Loose Fill Insulation

Also Published As

Publication number Publication date
GB0711756D0 (en) 2007-07-25
EP2006469A3 (de) 2009-05-06
EP2006469B1 (de) 2016-08-24

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