NO331760B1 - Method and apparatus for automatic mixing of water and concrete for rock bolting. - Google Patents

Method and apparatus for automatic mixing of water and concrete for rock bolting. Download PDF

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Publication number
NO331760B1
NO331760B1 NO20070409A NO20070409A NO331760B1 NO 331760 B1 NO331760 B1 NO 331760B1 NO 20070409 A NO20070409 A NO 20070409A NO 20070409 A NO20070409 A NO 20070409A NO 331760 B1 NO331760 B1 NO 331760B1
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NO
Norway
Prior art keywords
water
concrete
mixture
mixing
amount
Prior art date
Application number
NO20070409A
Other languages
Norwegian (no)
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NO20070409L (en
Inventor
Hans Gustavsson
Original Assignee
Atlas Copco Rock Drills Ab
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 Atlas Copco Rock Drills Ab filed Critical Atlas Copco Rock Drills Ab
Publication of NO20070409L publication Critical patent/NO20070409L/en
Publication of NO331760B1 publication Critical patent/NO331760B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/04—Supplying or proportioning the ingredients
    • B28C7/0422—Weighing predetermined amounts of ingredients, e.g. for consecutive delivery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
    • B01F35/881—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise by weighing, e.g. with automatic discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/02—Controlling the operation of the mixing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C9/00—General arrangement or layout of plant
    • B28C9/002—Mixing systems, i.e. flow charts or diagrams; Making slurries; Involving methodical aspects; Involving pretreatment of ingredients; Involving packaging
    • B28C9/004—Making slurries, e.g. with discharging means for injecting in a well or projecting against a wall
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis

Abstract

Method and arrangement for automatic mixing of water and concrete for rock bolting including adding water and concrete to a mixing vessel (1), mixing the water and concrete, and transferring the water and concrete to a drill hole(2). Water amount and concrete amount for the mixture of water and concrete is calculated in a control unit (3), that the calculated water amount is added to the mixing vessel (1), that the in the reality added water amount is weighed (4), that the calculated concrete amount is corrected considering the in the reality added water amount to obtain a correct mixture of water and concrete, that concrete and water are mixed during a predetermined time, and in that the mixture of water and concrete is transferred to a drill hole (2).

Description

Oppfinnelsen angår en fremgangsmåte og en anordning for automatisk blanding av vann og betong for fjellbolting. The invention relates to a method and a device for automatically mixing water and concrete for rock bolting.

I blandingen av vann og betong for fjellbolting er det vanlig å tilføre målte volumer og vann og betong til en blandebeholder. Deretter blir betong og vann blandet inntil blanding ser ut til å være klar. En ulempe med denne fremgangsmåte er at man får en tilsetning av luft som betyr at blandingsforholdet mellom vann og betong blir usikkert. Dette fører til at festingen av fjellbolten i fjellet kan bli noe usikker, det vil si at det kan være nødvendig med flere bolter for forsterkningen av fjellet enn det som hadde vært nødvendig dersom blandingen av vann og betong hadde et mer sikkert blandingsforhold mellom vann og betong. In the mixture of water and concrete for rock bolting, it is common to add measured volumes of water and concrete to a mixing container. Next, concrete and water are mixed until the mixture appears to be ready. A disadvantage of this method is that air is added, which means that the mixing ratio between water and concrete becomes uncertain. This leads to the fixing of the rock bolt in the rock being somewhat uncertain, i.e. more bolts may be needed for the reinforcement of the rock than would have been necessary if the mixture of water and concrete had a more secure mixing ratio between water and concrete .

Eksempler på dette er beskrevet i de to følgende dokumentene GB 2318304 A og US 4697960 A som beskriver mobile produksjonsanlegg for betong og fremgangsmåte og apparatur for fjellbolting. Examples of this are described in the two following documents GB 2318304 A and US 4697960 A which describe mobile production plants for concrete and methods and apparatus for rock bolting.

I følge oppfinnelsen, løses minst ett av de ovennevnte problemer ved en fremgangsmåte angitt i krav 1 og som har de karakteristiske trekk angitt i den kjennetegnende del av kravet; en anordning angitt i krav 3 og som har de karateristiske trekk som angitt i den kjennetegnende del av kravet. According to the invention, at least one of the above-mentioned problems is solved by a method stated in claim 1 and which has the characteristic features stated in the characterizing part of the claim; a device stated in claim 3 and which has the characteristic features as stated in the characterizing part of the claim.

Den foreliggende oppfinnelse som er definert i det følgende patentkrav, har det formål å oppnå en automatisk fremgangmåte og anordning for blanding av vann og betong som sikrer et nøyaktig blandingsforhold mellom vann og betong uten negativ innflytelse fra lufttilsetning. The present invention, which is defined in the following patent claim, aims to achieve an automatic method and device for mixing water and concrete which ensures an accurate mixing ratio between water and concrete without negative influence from air addition.

Anordningen vist på tegningen omfatter en blandebeholder 1 hvor en blandingsanordning i form av en blander 13 er anordnet. Blanderen kjøres av en motor 15 hvor kjøringen reguleres av en reguleringsenhet 3. For bestemmelse av mengden av materialet i blandebeholderen 1 blir dette anordnet til veiing med en vekt 4. Vann tilføres blandebeholderen 1 fra en vannkilde 16 via en ventil 11 og et rør 17. Betong tilføres blandebeholderen 1 fra en tilførsel 18 via en mater 12 og et rør 19. Ventilen 11 og materen 12 blir regulert av reguleringsenheten 3. The device shown in the drawing comprises a mixing container 1 where a mixing device in the form of a mixer 13 is arranged. The mixer is driven by a motor 15 where the drive is regulated by a control unit 3. To determine the quantity of the material in the mixing container 1, this is arranged for weighing with a scale 4. Water is supplied to the mixing container 1 from a water source 16 via a valve 11 and a pipe 17. Concrete is supplied to the mixing container 1 from a supply 18 via a feeder 12 and a pipe 19. The valve 11 and the feeder 12 are regulated by the control unit 3.

Anordningen vist på tegningen arbeider på følgende måte. Først innstiller operatøren det bestemte vektforhold mellom betong og vann, og den bestemte, totale vekt for blandingen med mindre hele volumet av blandebeholderen kreves. Disse verdier lagres i reguleringsenheten 3. Reguleringsenheten 3 beregner så de bestemte vekter av betong og vann fra enten den bestemte vekt av den ferdige blanding eller fra volumet av blandebeholderen 1. Blandingen starter ved veiing av mengdene av vann og betong med vekten 4. I det viste eksempel står blandebeholderen 1 på vekten 4. Blandebeholderen kan naturligvis være opphengt, for eksempel i en lastcelle. Vannet tilføres hurtig fra kilden 16 til omkring den ønskede mengde. Deretter blir mengden av betong beregnet på nytt for å ta hensyn til den virkelige mengde av vann. Betongen tilføres blandebeholderen 1 med materen 12, for eksempel en skruemater. Deretter startes motoren 15 for å kjøreblanderen 13 i en forutbestemt tid innstilt i reguleringsenheten 3. Når blandingen er gjort blir blandingen av vann og betong overført til borehullet 2 med pumpen 14. The device shown in the drawing works in the following way. First, the operator sets the specific weight ratio of concrete to water, and the specific total weight of the mix unless the entire volume of the mixing container is required. These values are stored in the control unit 3. The control unit 3 then calculates the determined weights of concrete and water from either the determined weight of the finished mixture or from the volume of the mixing container 1. The mixture starts by weighing the amounts of water and concrete with the scale 4. In the shown example, the mixing container 1 stands on the scale 4. The mixing container can of course be suspended, for example in a load cell. The water is supplied quickly from the source 16 to about the desired amount. Then the amount of concrete is recalculated to take into account the actual amount of water. The concrete is supplied to the mixing container 1 with the feeder 12, for example a screw feeder. The motor 15 is then started to run the mixer 13 for a predetermined time set in the control unit 3. When the mixing is done, the mixture of water and concrete is transferred to the borehole 2 with the pump 14.

Når blandingen av vann og betong har blitt overført til borehullet 12 bør blandebeholderen 1 og annet utstyr bli renset for å hindre at utstyret ødelegges ved et avbrudd i arbeidet. Dette gjøres ved å tilføre vann til blandebeholderen 1 inntil vannivået 5 når en øvre velgbar grense. Blanderen 13 og pumpen 14 kjøres under hele renseprosessen. Vannivået 5 bestemmes ve hjelp av vekten 4. Når vannivået 5 har nådd en nedre grense så blir blandebeholderen fylt på nytt til det øvre nivå. Denne fremgangsmåte gjentas et forutbestemt antall ganger eller under en forutbestemt tid. Når rensingen er gjennomført blir utstyret koplet av, og blandebeholderen 1 tømmes. Hele prosessen reguleres av reguleringsenheten 3. En fordel med denne fremgangsmåte er at den er automatisk slik at operatøren kan forlate utstyret og utføre annet arbeid samtidig som rensingen utføres. When the mixture of water and concrete has been transferred to the borehole 12, the mixing container 1 and other equipment should be cleaned to prevent the equipment from being destroyed by an interruption in the work. This is done by adding water to the mixing container 1 until the water level 5 reaches an upper selectable limit. The mixer 13 and the pump 14 are run during the entire cleaning process. The water level 5 is determined using the weight 4. When the water level 5 has reached a lower limit, the mixing container is filled again to the upper level. This procedure is repeated a predetermined number of times or for a predetermined time. When the cleaning is completed, the equipment is disconnected, and the mixing container 1 is emptied. The entire process is regulated by the control unit 3. An advantage of this method is that it is automatic so that the operator can leave the equipment and carry out other work at the same time as the cleaning is carried out.

Claims (4)

1. Fremgangmåte for automatisk blanding av vann og betong for fjellbolting omfattende tilføring av vann og betong til en blandebeholder (1), blanding av vannet og betongen, og overføring av vannet og betongen til et borehull (2),karakterisert ved- beregning av mengden av vann og mengden av betong for blandingen av vann og betong i en reguleringsenhet (3), - tilføring av den beregnede mengde av vann til blandebeholderen (1), - veiing (4) av reell tilført mengde av vann, - korrigering av den beregnede mengde av betong i betraktning av den reelle tilførte mengde av vann for å oppnå en korrekt blanding av vann og betong, - blanding av betong og vann i en forutbestemt tid, og - overføring av blandingen av vann og betong til borehull.1. Method for automatic mixing of water and concrete for rock bolting, including supplying water and concrete to a mixing container (1), mixing the water and concrete, and transferring the water and concrete to a borehole (2), characterized by calculating the quantity of water and the quantity of concrete for the mixture of water and concrete in a control unit (3), - supply of the calculated quantity of water to the mixing container (1), - weighing (4) of the actual supplied quantity of water, - correction of the calculated amount of concrete taking into account the actual added amount of water to achieve a correct mixture of water and concrete, - mixing of concrete and water for a predetermined time, and - transfer of the mixture of water and concrete to boreholes. 2. Fremgangsmåte ifølge krav 1,karakterisert ved- fylling av blandebeholderen (1) med vann, etter overføringen av vann og betongblanding til et borehull (2), - regulering av vannivået (5) i blandebeholderen (1) med reguleringsenheten (3) mellom et øvre nivå og et nedre nivå, og - gjentakelse av reguleringen i en forutbestemt tid.2. Method according to claim 1, characterized by- filling the mixing container (1) with water, after the transfer of water and concrete mixture to a borehole (2), - regulation of the water level (5) in the mixing container (1) with the regulation unit (3) between an upper level and a lower level, and - repetition of the regulation for a predetermined time. 3. Anordning for automatisk blanding av vann og betong for fjellbolting omfattende innretning (11) for tilførsel av vann til en blandebeholder (1), og innretning (12) for tilførsel av betong til blandebeholderen (1), en blander (13) for blanding av vannet og betongen i blandebeholderen (1), og innretning (14) for overføring av vannet og betongen til et borehull (2),karakterisert veden reguleringsenhet (3) for beregning av mengden av vann og mengden av betong for blandingen av vann og betong, innretning (11) for tilførsel av den beregnede mengde av vann til blandebeholderen (1), innretning (4) for veiing av den reelle tilførte mengde av vann, innretning i reguleringsenheten (3) for korrigering av mengden av betong i betrakting av den reelle tilførte mengde av vann for å oppnå en korrekt blanding av vann og betong, innretning i reguleringsenheten for regulering av tiden for blandingen, og innretning (14) for overføring av vannet og betongblandingen til et borehull (2).3. Device for automatic mixing of water and concrete for rock bolting comprising device (11) for supplying water to a mixing container (1), and device (12) for supplying concrete to the mixing container (1), a mixer (13) for mixing of the water and concrete in the mixing container (1), and device (14) for transferring the water and concrete to a borehole (2), characterized by the control unit (3) for calculating the amount of water and the amount of concrete for the mixture of water and concrete , device (11) for supplying the calculated amount of water to the mixing container (1), device (4) for weighing the actual supplied amount of water, device in the regulation unit (3) for correcting the amount of concrete in consideration of the actual added amount of water to achieve a correct mixture of water and concrete, device in the control unit for regulating the time for the mixture, and device (14) for transferring the water and the concrete mixture to a borehole (2). 4. Anordning ifølge krav 3,karakterisert vedinnretning (11) for fylling av blandebeholderen (1) med vann etter overføringen av blandingen av vann og betong til et borehull (2), og innretning i reguleringsenheten (3) for regulering av vannivået (5) i blandebeholderen (1) mellom et øvre nivå og et nedre nivå i en forutbestemt tid.4. Device according to claim 3, characterized by device (11) for filling the mixing container (1) with water after the transfer of the mixture of water and concrete to a borehole (2), and device in the regulation unit (3) for regulating the water level (5) in the mixing container (1) between an upper level and a lower level for a predetermined time.
NO20070409A 2004-06-23 2007-01-22 Method and apparatus for automatic mixing of water and concrete for rock bolting. NO331760B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0401616A SE526474C2 (en) 2004-06-23 2004-06-23 Method and apparatus for automatic mixing of water and cement for rock bolting
PCT/SE2005/000741 WO2006001743A1 (en) 2004-06-23 2005-05-20 Method and arrangement for automatic mixing of water and concrete for rock bolting

Publications (2)

Publication Number Publication Date
NO20070409L NO20070409L (en) 2007-01-22
NO331760B1 true NO331760B1 (en) 2012-03-19

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Application Number Title Priority Date Filing Date
NO20070409A NO331760B1 (en) 2004-06-23 2007-01-22 Method and apparatus for automatic mixing of water and concrete for rock bolting.

Country Status (8)

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EP (1) EP1758718B1 (en)
AT (1) ATE470546T1 (en)
AU (1) AU2005257699B2 (en)
CA (1) CA2563383C (en)
DE (1) DE602005021783D1 (en)
NO (1) NO331760B1 (en)
SE (1) SE526474C2 (en)
WO (1) WO2006001743A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108435030A (en) * 2018-05-11 2018-08-24 荆门它山之石电子科技有限公司 A kind of intelligence chemical industry blending tank

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2417012A1 (en) * 1974-04-08 1975-10-23 Scheurich Concrete mixes from cement, aggregates and water - using memory stores to calculate exact amt. of water required
US4697960A (en) * 1985-05-31 1987-10-06 Cominco Ltd. Method and apparatus for anchoring rock bolts and cables
IE77873B1 (en) * 1995-12-29 1998-01-14 Mayasta Limited A process for making readymix concrete
GB2318304A (en) * 1996-10-28 1998-04-22 Yan Lee Holdings Limited Mobile batching plant for the production of concrete
US5795060A (en) * 1996-05-17 1998-08-18 Stephens; Patrick J. Method and apparatus for continuous production of colloidally-mixed cement slurries and foamed cement grouts

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2001253194A1 (en) * 2000-04-05 2001-10-23 Advanced Concrete Innovations, Inc. Portable concrete plant
WO2002032826A2 (en) * 2000-10-13 2002-04-25 Air Crete Block, Inc. Method and apparatus for compressing lightweight concrete
US6491421B2 (en) * 2000-11-29 2002-12-10 Schlumberger Technology Corporation Fluid mixing system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2417012A1 (en) * 1974-04-08 1975-10-23 Scheurich Concrete mixes from cement, aggregates and water - using memory stores to calculate exact amt. of water required
US4697960A (en) * 1985-05-31 1987-10-06 Cominco Ltd. Method and apparatus for anchoring rock bolts and cables
IE77873B1 (en) * 1995-12-29 1998-01-14 Mayasta Limited A process for making readymix concrete
US5795060A (en) * 1996-05-17 1998-08-18 Stephens; Patrick J. Method and apparatus for continuous production of colloidally-mixed cement slurries and foamed cement grouts
GB2318304A (en) * 1996-10-28 1998-04-22 Yan Lee Holdings Limited Mobile batching plant for the production of concrete

Also Published As

Publication number Publication date
CA2563383C (en) 2013-10-29
SE0401616L (en) 2005-09-20
EP1758718B1 (en) 2010-06-09
AU2005257699A1 (en) 2006-01-05
CA2563383A1 (en) 2006-01-05
ATE470546T1 (en) 2010-06-15
NO20070409L (en) 2007-01-22
EP1758718A1 (en) 2007-03-07
WO2006001743A1 (en) 2006-01-05
AU2005257699B2 (en) 2010-03-04
DE602005021783D1 (en) 2010-07-22
SE0401616D0 (en) 2004-06-23
SE526474C2 (en) 2005-09-20

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Owner name: EPIROC ROCK DRILLS AKTIEBOLAG, SE