NL2012290C2 - Mixing apparatus for flowable materials, in particular building material mixtures. - Google Patents

Mixing apparatus for flowable materials, in particular building material mixtures. Download PDF

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Publication number
NL2012290C2
NL2012290C2 NL2012290A NL2012290A NL2012290C2 NL 2012290 C2 NL2012290 C2 NL 2012290C2 NL 2012290 A NL2012290 A NL 2012290A NL 2012290 A NL2012290 A NL 2012290A NL 2012290 C2 NL2012290 C2 NL 2012290C2
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NL
Netherlands
Prior art keywords
building material
hose
mixture
mixing device
material mixture
Prior art date
Application number
NL2012290A
Other languages
Dutch (nl)
Inventor
Maikel Klijn
Original Assignee
Stuc Concurrent B V De
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 Stuc Concurrent B V De filed Critical Stuc Concurrent B V De
Priority to NL2012290A priority Critical patent/NL2012290C2/en
Application granted granted Critical
Publication of NL2012290C2 publication Critical patent/NL2012290C2/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/04—Stationary flat screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
    • B05B12/1481—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet comprising pigs, i.e. movable elements sealingly received in supply pipes, for separating different fluids, e.g. liquid coating materials from solvent or air
    • 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
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
    • B05B7/062—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet
    • B05B7/065—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet an inner gas outlet being surrounded by an annular adjacent liquid outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/02—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions without using driven mechanical means effecting the mixing
    • B28C5/026—Mixing guns or nozzles; Injector mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/0893—Mobile mixing devices, e.g. hanging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B2201/00—Details applicable to machines for screening using sieves or gratings
    • B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Nozzles (AREA)

Description

Mixing apparatus for flowable materials, in particular building material mixtures
The invention relates to a mixing apparatus for flowable materials, in particular building material mixtures, comprising a support and a receptacle mounted on said support for starting material such as gypsum and for mixing the starting material with a fluid such as in particular water so as to provide a building material mixture, and a pump region embodied with a pump for transporting the building material mixture to an outlet of the apparatus, wherein said outlet is connected or connectable to a material hose for transferring the building material mixture leaving the apparatus.
Such a mixing apparatus is known from EP-A-1 918 020 in the name of Knauf PFT GmbH & Co. KG. Such a mixing apparatus is also known and on the market under the name "PFT Ritmo".
There are several disadvantages attaching to the known mixing apparatus.
One problem is that the known apparatus is heavy and hard to handle by a single person. In practice the apparatus is used by at least two persons, wherein one person is dedicated to keep the receptacle duly filled with the proper amount of starting material. The other person can then dedicate himself to applying the building material mixture to the wall or ceiling which is being processed.
Another problem is that the known apparatus requires a lot of time and attention for maintaining its operation.
Still another problem is that after being used, it is a tedious and cumbersome job to clean up the apparatus and the material hose that was connected to it from the remaining building material mixture in the apparatus and in the material hose. If this is not done properly the apparatus and/or the material hose can not be reused. The procedure to follow for cleaning up the material hose requires that it is first disconnected from the apparatus to enable that cleaning means, usually a cleaning ball or balls, are introduced into the hose. After that the hose is reconnected to the apparatus, and the operation of the apparatus is resumed until the hose is completely emptied from any remaining building material mixture. Clean ing up the apparatus itself requires the use of a fair amount of water.
It is an object of the invention to counter or diminish the problems of the known mixing apparatus, and to provide an alternative for the known mixing apparatus which is less cumbersome to use, which is easy to operate by a single person and which enables swift working and easy cleaning.
Accordingly the apparatus of the invention which shares with the prior art the feature that it further comprises an air compressor and an air outlet which is connected or connectable to an air hose for compressed air from said air compressor, is provided with a support that is embodied as a box with a flat top onto which the receptacle is removably mountable, and that the air compressor, the pump region and interconnecting piping for the building material mixture to the outlet is enclosed within the box. This arrangement provides the notable advantage that the support can be arranged as a relatively small and lightweight box, on top of which the receptacle can be removably provided. After work is done and the receptacle is emptied by the operation of the mixing apparatus, the receptacle can be removed from the box and cleaned. The box with all the motors and pumps inside can continue in operation until any and all building material mixture is removed therefrom.
In one preferred embodiment of the mixing apparatus of the invention the box has in the outlet's vicinity an inlet for cleaning means enabling the introduction of said cleaning means into the apparatus without disconnecting the material hose from the outlet so as to arrange that said cleaning means can enter the material hose for expelling any remaining building material mixture from said hose.
The ease of operation of the mixing apparatus of the invention is particularly promoted by the feature that the material hose and the air hose jointly connect to a spray gun for spraying the building material mixture, for instance to a wall or ceiling.
Best results are achieved in an embodiment in which the spray gun has a central discharge channel to which the air hose is connected, and a material discharge channel circumferentially around the central discharge channel for compressed air .
Operation of the mixing apparatus of the invention is particularly made easy and clean by arranging that the spray gun is provided with a lever having an on-position and an off-position, wherein the lever connects to a control unit of the apparatus receiving and processing the position of the lever such that in the off position of the lever the pump for the building material mixture and the air compressor are shut off, and that in the on position of the lever the pump for the building material mixture and the air compressor are enabled to operate. Compared to the mixing apparatus of the prior art, this provides the notable advantage that expelling of building material mixture from the material hose is immediately interrupted in the lever is placed in the off position, whereas in the prior art expelling of material from the material hose may carry on for several seconds.
There are many arrangements in which the information about the position of the sensors can be communicated to the control unit, but preferably the lever position is electrically sensed and transmitted by wire or wirelessly to the control unit.
In a preferred embodiment that supports the quick' responding of the mixing apparatus of the invention to the lever, said lever connects to means for mechanically opening and closing discharge openings of the central discharge channel for compressed air and the material discharge channel provided circumferentially around the central discharge channel.
It may be preferable that the box has an inlet for water, which can be used to have water flow to the receptacle on top of the support once it is emptied and ready to receive further starting material which can be used to make a further mixture of building material.
For a notable part the invention also relates to the spray gun which in the foregoing is described as part of the mixing apparatus of the invention.
In another aspect the invention relates to a separation tub for separation of solids from a watery mixture, in particular a building material mixture, which can be used in the cleaning operation to receive the remainder of the building material mixture from the material hose. Such a tub comprises at least one seave, and has the features that it has a top side opening and receiving room for the watery mixture, underneath which a first course seave and below said first course seave a second fine seave are provided, wherein underneath the second fine seave a collection room is provided for water separated from the watery mixture.
The invention will hereinafter be further elucidated with reference to the drawing of a nonlimiting exemplary embodiment of the mixing apparatus of the invention.
In the drawing: -figure 1 schematically shows the mixing apparatus of the invention; and -figure 2 schematically shows the separation tub of the invention.
Whenever in the figures the same reference numerals are applied, these numerals refer to the same parts.
Making reference first to figure 1 the mixing apparatus of the invention is generally denoted with reference 1. This mixing apparatus 1 is intended for flowable materials, in particular building material mixtures, and comprises a support 2 and a receptacle 3 mounted on said support 2 for receiving therein starting material such as gypsum and mixing the same with water to a suitable building material mixture.
Underneath the receptacle 3 the support 2 is provided which is embodied as a box 4 with a flat top 5 onto which the receptacle 3 is removably mountable. Within the box 4 provision is made for a pump region 6 embodied with a pump 7 (driven by pump motor 1') and interconnecting piping for transporting the building material mixture by operation of the pump 7 from the receptacle 3 to an outlet 8 of the apparatus 1. Further provision is made within the box 4 for an air compressor 9 and an air outlet 10 which is connected or connectable to an air hose 11 for compressed air provided by said air compressor 10. Correspondingly the material outlet 8 is connected or connectable to a material hose 12 for transferring the building material mixture leaving the apparatus 1. The material hose 12 and the air hose 11 jointly connect to a spray gun 13 for spraying the building material mixture during use of the apparatus 1 to a wall or ceiling.
Preferably the spray gun 13 has a central discharge channel 14 to which the air hose 11 is connected, and a materi- al discharge channel 15 circumferentially around the central discharge channel 14 for compressed air. Suitably the spray gun 13 is provided with a lever 16 having an on-position and an off-position, wherein the lever 16 connects through wire 17 or wirelessly to a control unit (not shown) within the box 2 of the apparatus for receiving and processing the position of the lever 16 such that in the off position of the lever 16 the pump 7for the building material mixture and the air compressor 9 are shut off, and that in the on position of the lever 16 the pump 7 for the building material mixture and the air compressor 9 are enabled to operate.
In a preferred embodiment the lever 16 connects to means for mechanically opening and closing discharge openings 18, 19 of the central discharge channel 14 for compressed air and the material discharge channel 15 provided circumferentially around the central discharge channel 14.
With reference further to figure 1 it is shown that the box 2 has in the vicinity of the material outlet 8 an inlet 20 for cleaning means (usually a cleaning ball) enabling the introduction of said cleaning means into the box 2 of the apparatus without disconnecting the material hose 12 from the outlet 8 so as to arrange that said cleaning means can enter the material hose 12 for expelling any remaining building material mixture from said hose 12 after operation of the apparatus 1 is terminated.
Figure 1 further shows that the box optionally has an inlet 21 for water which may be used to introduce water into the receptacle 3 in which the starting material is received and mixing with water is accomplished to provide the building material mixture.
In figure 2 a separation tub 22 for separation of solids from a watery mixture is shown, which is particularly usable for application on the remaining building material mixture expelled from the material hose 12 after operation of the apparatus 1 of figure 1 is terminated. This tub 22 has a top side opening 23 and a receiving room 24 for the watery mixture, underneath which a first course seave 25 and below said first course seave 25 a second fine seave 26 are provided, and wherein underneath the second fine seave 26 a collection room 27 is provided for relatively clean water separated from the watery mixture. The solids that were comprised in the watery mixture remain on top of the first course seave 25 and second fine seave 26.
Although the invention has been discussed in the foregoing with reference to an exemplary embodiment of the apparatus of the invention, the invention is not restricted to this particular embodiment which can be varied in many ways without departing from the gist of the invention. The discussed exemplary embodiment shall therefore not be used to construe the appended claims strictly in accordance therewith. On the contrary the embodiment is merely intended to explain the wording of the appended claims without intent to limit the claims to this exemplary embodiment. The scope of protection of the invention shall therefore be construed in accordance with the appended claims only, wherein a possible ambiguity in the wording of the claims shall be resolved using this exemplary embodiment .

Claims (10)

1. Menginrichting (1) voor vloeibaar materiaal, in het bijzonder bouwmateriaalmengsels, omvattende een steun (2) en een ontvangorgaan (3) gemonteerd op genoemde steun (2) voor het ontvangen van startmateriaal zoals gips en voor mengen van het startmateriaal met een vloeistof zoals in het bijzonder water voor het verschaffen van een bouwmateriaalmengsel, en omvattende een pompgebied (6) uitgevoerd met een pomp (7) voor het transporteren van het bouwmateriaalmengsel naar een mate-riaaluitgang (8) van de inrichting, waarbij genoemde materi-aaluitgang (8) verbonden is of verbindbaar is met een materi-aalslang (12) voor het overbrengen van het bouwmateriaalmengsel dat het apparaat verlaat, en waarbij de inrichting verder een luchtcompressor (9) omvat en een luchtuitlaat (10) welke verbonden is of verbindbaar is met een luchtslang (11) voor samengeperste lucht verschaft door genoemde luchtcompressor (9), met het kenmerk, dat de steun (2) uitgevoerd is als een box (4) met een vlakke bovenkant (5) op welke het ontvangorgaan (3) verwijderbaar monteerbaar is, en dat de luchtcompressor (9), het pompgebied (6) en verbindende leidingen voor het bouwmateriaalmengsel naar de uitgang (8) is opgenomen binnen de box (4).Mixing device (1) for liquid material, in particular building material mixtures, comprising a support (2) and a receiver (3) mounted on said support (2) for receiving starting material such as plaster and for mixing the starting material with a liquid such as in particular water for providing a building material mixture, and comprising a pumping area (6) provided with a pump (7) for transporting the building material mixture to a material output (8) of the device, said material output ( 8) is connected or connectable to a material hose (12) for transferring the building material mixture leaving the device, and wherein the device further comprises an air compressor (9) and an air outlet (10) connected or connectable to an air hose (11) for compressed air provided by said air compressor (9), characterized in that the support (2) is designed as a box (4) with a flat top (5) on which the receiver (3) is removably mountable, and that the air compressor (9), the pump area (6) and connecting pipes for the building material mixture to the outlet (8) are included within the box (4). 2. Menginrichting (1) volgens conclusie 1, met het kenmerk, dat in de omgeving van de uitgang (8) van de box (4) een inlaat (20) is voorzien voor reinigingsmiddelen die mogelijk maken dat bedoelde reinigingsmiddelen de box (4) van de inrichting worden ingebracht zonder losnemen van de materiaal-slang (12) van de materiaaluitgang (8), teneinde te bewerkstelligen dat genoemde reinigingsmiddelen de materiaalslang (12) kunnen ingaan voor het uitdrijven van overblijvend bouwmateriaalmengsel uit genoemde slang (12).Mixing device (1) according to claim 1, characterized in that an inlet (20) is provided in the vicinity of the outlet (8) of the box (4) for cleaning means which make it possible for said cleaning means to have the box (4) of the device may be introduced without detaching the material hose (12) from the material outlet (8) to cause said cleaning means to enter the material hose (12) to expel remaining building material mixture from said hose (12). 3. Menginrichting (1) volgens conclusie 1 of 2, met het kenmerk, dat de materiaalslang (12) en de luchtslang (11) tezamen verbonden zijn met een spuitpistool (13) voor het spuiten van het bouwmateriaalmengsel.Mixing device (1) according to claim 1 or 2, characterized in that the material hose (12) and the air hose (11) are connected together with a spray gun (13) for spraying the building material mixture. 4. Menginrichting (1) volgens conclusie 3, met het kenmerk, dat het spuitpistool (13) een centraal uitlaatkanaal (14) bezit met welke de luchtslang (11) verbonden is, en een materiaaluitgangskanaal (15) die zich in de omtreksrichting rond het centrale uitgangskanaal (14) voor samengeperste lucht bevindt,Mixing device (1) according to claim 3, characterized in that the spray gun (13) has a central outlet channel (14) to which the air hose (11) is connected, and a material outlet channel (15) which extends around the circumference direction. central outlet channel (14) for compressed air, 5. Menginrichting (1) volgens conclusie 3 of 4, met het kenmerk, dat het spuitpistool (13) voorzien is van een hendel (16) met een aan-positie en een uit-positie, waarbij de hendel (16) verbonden is met een regeleenheid van de inrichting (1) die de positie van de hendel (16) ontvangt en bewerkt zodanig dat in de uit-positie van de hendel (16) de pomp (7) voor het bouwmateriaalmengsel en de luchtcompressor (9) zijn uitgeschakeld, en dat in de aan-positie van de hendel (16) de pomp (7) voor het bouwmateriaalmengsel en de luchtcompressor (9) werkzaam zijn.Mixing device (1) according to claim 3 or 4, characterized in that the spray gun (13) is provided with a handle (16) with an on position and an off position, the handle (16) being connected to a control unit of the device (1) that receives and processes the position of the handle (16) such that in the out position of the handle (16) the pump (7) for the building material mixture and the air compressor (9) are switched off, and that in the on-position of the handle (16) the pump (7) for the building material mixture and the air compressor (9) are active. 6. Menginrichting (1) volgens conclusie 5, met het kenmerk, dat de hendel (16) positie elektrisch gemeten wordt en over draad (17) of draadloos wordt verzonden naar de regeleenheid .Mixing device (1) according to claim 5, characterized in that the lever (16) position is measured electrically and is sent over the wire (17) or wirelessly to the control unit. 7. Menginrichting (1) volgens één der conclusies 4 -6, met het kenmerk, dat de hendel (16) is verbonden met middelen voor het mechanisch openen en sluiten van uitlaatopeningen (18, 19) van het centrale uitvoerkanaal (14) voor samengeperste lucht en het materiaaluitvoerkanaal (15) dat in de omtreksrichting rond het centrale uitvoerkanaal (14) is voorzien.Mixing device (1) according to one of claims 4 to 6, characterized in that the handle (16) is connected to means for mechanically opening and closing outlet openings (18, 19) of the central outlet (14) for compressed air and the material outlet channel (15) provided in the circumferential direction around the central outlet channel (14). 8. Menginrichting (1) volgens één der voorgaande conclusies 1-7, met het kenmerk, dat de box (4) een invoer (21) voor water bezit.Mixing device (1) according to one of the preceding claims 1-7, characterized in that the box (4) has an inlet (21) for water. 9. Spuitpistool (13) beschreven als onderdeel van de menginrichting (1) volgens één der voorgaande conclusies 1 - 8 .9. Spray gun (13) described as part of the mixing device (1) according to one of the preceding claims 1 - 8. 10. Scheidingskuip (22) voor het scheiden van vaste bestanddelen uit een waterig mengsel, in het bijzonder een bouwmateriaalmengsel, welke kuip ten minste één zeef (25, 26) omvat, met het kenmerk, dat de kuip (22) een bovenzijdige opening (23) bezit en een ontvangstruimte (24) voor- het waterige mengsel, onder welke een eerste grove zeef (25) en onder genoemde eerste grove zeef (25) een tweede fijne zeef (2.6) is voorzien, waarbij onder de tweede fijne zeef (26) een verza-melruimte (27) is voorzien voor water dat afgescheiden is van het waterige mengsel'.10. Separating tub (22) for separating solid components from an aqueous mixture, in particular a building material mixture, which tub comprises at least one screen (25, 26), characterized in that the tub (22) has a top-side opening ( 23) and a receiving space (24) for the aqueous mixture, under which a first coarse screen (25) and under said first coarse screen (25) a second fine screen (2.6) is provided, wherein under the second fine screen ( 26) a collection space (27) is provided for water separated from the aqueous mixture.
NL2012290A 2014-02-19 2014-02-19 Mixing apparatus for flowable materials, in particular building material mixtures. NL2012290C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL2012290A NL2012290C2 (en) 2014-02-19 2014-02-19 Mixing apparatus for flowable materials, in particular building material mixtures.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2012290A NL2012290C2 (en) 2014-02-19 2014-02-19 Mixing apparatus for flowable materials, in particular building material mixtures.
NL2012290 2014-02-19

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NL2012290C2 true NL2012290C2 (en) 2015-08-25

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5443211A (en) * 1992-01-30 1995-08-22 The Stanley Works Spray machine for giving a texture to drywall
US20040245355A1 (en) * 2003-06-06 2004-12-09 Fettig Drywall Mixer and sprayer unit
EP1918020A2 (en) * 2006-11-02 2008-05-07 Knauf PFT GmbH & Co. KG Mixing device for flowable materials, in particular building material mixtures

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5443211A (en) * 1992-01-30 1995-08-22 The Stanley Works Spray machine for giving a texture to drywall
US20040245355A1 (en) * 2003-06-06 2004-12-09 Fettig Drywall Mixer and sprayer unit
EP1918020A2 (en) * 2006-11-02 2008-05-07 Knauf PFT GmbH & Co. KG Mixing device for flowable materials, in particular building material mixtures

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