DK156546B - METHOD AND APPARATUS FOR MANUFACTURING MORTEL - Google Patents

Abstract

A process and apparatus for the preparation of mortar from an aggregate and a binder is disclosed which comprises the use of a silo provided with at least one partition so as to create in the silo two or more compartments for the separate storage of the aggregate and the binder, the compartments being provided with conveyor screws, the speeds of which can be adjusted to control the volumetric flow of the components to a mixing chamber. A metering valve for water may also be connected to the mixing chamber. The silo compartment for the aggregate may be provided with a heating element to safeguard the mechanically operated slide valve against freezing. The conveyor screw in the outlet for the binder may be provided with a cam and a plunger rod with transverse projections to prevent arching in the compartment for the storage of the binder. The apparatus may be mounted on a truck to facilitate transport to the building site.

Description

iin

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Opfindelsen angâr en fremgangsmâde til fremstilling af mortel, sàsom fugemortel, og af den i krav l's indledning angivne art.The invention relates to a process for the preparation of mortar, such as grout mortar, and of the kind specified in the preamble of claim 1.

FR-patentskrift nr. 2.357.400 angâr en fremgangsmâde til frem-5 stilling af mortel ved brug af en mobil silo for tiIslagsmate-rialer og bindemiddel, som indeholdes i separate kamre inden i siloen, hvorved de volumetiske stromme af ti1 siagsmateriale og bindemiddel indstilles, hvorpâ tiIslagsmaterialet og binde-midlet blandes med hinanden under tilsætningen af vand. Denne 10 silo bestàr af et legeme med adskillelige separate kamre. I transporttiIstanden er oplagringskapacitetsforogende fag oplagret inden i kamrene, hvis oplaringskapacitet de oger i brugstiIstanden. Kamrene er tomme bortset fra de nævnte fag, medens siloen befinder sig i transportti1standen. For anven-15 delsen pâ byggepladsen skal fagene vendes og kamrene fyldes.FR Patent No. 2,357,400 relates to a method for making mortar using a mobile silo for aggregate materials and binder contained in separate chambers within the silo, thereby adjusting the volumetric flows of silage material and binder. , wherein the additive material and the binder are mixed with each other during the addition of water. This 10 silo consists of a body with several separate chambers. In the transport mode, storage capacity-increasing subjects are stored within the chambers whose storage capacity increases in the operating state. The chambers are empty except for said subjects, while the silo is in the transport condition. For use on the construction site, the subjects must be turned and the chambers filled.

Den mobile silo er monteret oven pâ en transportenhed, som blandt andet har en styrekabine. Den danner herved et indvik-let og dyrt anlæg, som er uadskilleligt.The mobile silo is mounted on top of a transport unit which, among other things, has a control cabin. It thereby forms an intricate and expensive plant which is inseparable.

2020

Formâlet med den foreliggende opfindelse er at anvise en for-bedret fremgangsmâde af den ovenfor beskrevne art. Dette opnâs ved at fremgangsmâden ifolge opfindelsen er ejendommelig ved, at siloens kamre fyldes, medens siloen befinder sig pâ en op-25 lagsplads eller i et lagerrum for ti1 siagsmaterialer og bindemiddel, hvorefter siloen transporteres til byggepladsen, hvor de volumetriske stromme af ti1 s 1agsmaterialet og bindemidlet indstilles i forhold til hinanden, hvorefter ti1 s 1agsmateria-let og bindemidlet sammenblandes under tilsætning af vand til 30 frembringelse af pâ byggepladsen brugsfærdigt mortel.The object of the present invention is to provide an improved method of the kind described above. This is achieved by the method according to the invention being characterized in that the silo chambers are filled while the silo is in a storage space or in a storage room for material and binder, after which the silo is transported to the construction site, where the volumetric flows of the material are stored. and the binder is adjusted relative to one another, after which time the coating material and the binder are mixed together with the addition of water to produce ready-to-use mortar on the site.

Opfindelsen angâr endvidere et apparat til fremstilling af mortel ifolge ovennsvnte fremgangsmâde, hvilket apparat om-fatter en silo, som for neden har en tragtformet sektion og 35 som er monteret pâ et understel, sâ at siloen kan stâ i opret stilling, og hvor siloen har mindst en skillevæg til særskilt opbevaring af tilslagsmateriale og bindemiddel i hvart sit kammer, der hver har et udlob, som forer til en blander i et 2The invention further relates to an apparatus for making mortar according to the above method, which comprises a silo having a funnel-shaped section below and mounted on a chassis so that the silo can stand upright and wherein the silo has at least one partition for separate storage of aggregate material and binder in each chamber, each having an outlet leading to a mixer in a 2

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blandekammer med midler til tilsætning af vand. Et sâdant apparat er ligeledes kendt fra FR-patentskrift nr. 2.357.400.mixing chamber with water addition means. Such an apparatus is also known from FR Patent Specification No. 2,357,400.

Apparatet ifolge opfindelsen er ejendommeligt ved, at udlobet 5 for tilslagsmaterialet er forsynet med en transportsnegl, hvis aksel ogsâ udgor blanderens aksel i blandekammeret, at udlobet for bindemiddelkammeret er forsynet med en anden transportsnegl, sàledes at de to transportsnegle udleverer til blandekammeret, og at hastighederne for transportsneglene for hen-10 holdsvis bindemidlet og tilslagsmaterialet er indrettet til at kunne indstilles i forhold til hinanden.The apparatus according to the invention is characterized in that the outlet 5 of the aggregate material is provided with a conveyor screw whose shaft also forms the mixer shaft in the mixing chamber, that the outlet of the binder chamber is provided with a second conveyor screw, so that the two conveyor screws deliver to the mixing chamber. for the transport augers for the binder and the aggregate, respectively, are arranged to be adjustable relative to each other.

Fremgangsmâden med tilhorende apparat har folgende fordele: 15 - siloen skal ikke "genopbygges" pà brugsstedet; siloen kræver ikke nogen fyldning pâ brugsstedet, da dette er sket pâ oplagspladsen; 20 - siloen kan transporteres, medens den er helt eller delvis fyldt; siloen skal ikke nodvendigvis rengores fuldstændigt for den omdannes til transportti1 stand igen; 25 da siloen er udstyret med montagedele og tilbehor, som let-ter pâlæsning, transport og aflaesning af apparatet pâ eller fra beholdertransporterende lastvogne, kan den let læg-ges pà en lastvogn og transporteres som en container; 30 siloen er en uafhængig enhed, som kun behover vand og elek-t r i c i t e t ; apparatet er forholdvis enkelt og billigt og kan derfor 35 forblive pà brugsstedet i en længere période og endog blive efterladt i tomgangstiIstand.The procedure with associated apparatus has the following advantages: 15 - the silo must not be "rebuilt" at the site of use; the silo does not require any filling at the point of use as this has been done at the storage site; - the silo can be transported while it is fully or partially filled; the silo does not necessarily have to be completely cleaned before it is converted into transport mode again; 25 since the silo is equipped with mounting parts and accessories which facilitate loading, transporting and unloading of the apparatus on or from container transporting trucks, it can easily be loaded onto a truck and transported as a container; The silo is an independent unit which only needs water and electricity in c i t e t; The apparatus is relatively simple and inexpensive and can therefore remain at the point of use for a longer period and even be left idle.

Af yderligere fordele kan der nævnes: 3Additional advantages include:

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tiIslagsmaterialet behaver ikke nogen fortarring, blandingens sammensætning opnâs ikke ved vejning, hvorved undgâs brugen af forholdvis kostbart vejeudstyr, 5 pâ byggepladsen kan de mængder af martel, der er behov for pâ det pâgældende tidspunkt, til enhver tid blandes, de volumetriske stramme kan indstnies indbyrdes ved hjælp 10 af meget enkle midler, og den indstillede værdi kan opret- holdes effektivt, der er ikke behov for tilsætning af hjælpestoffer, sâsom midler til at forlænge starkningstiden og luftindblandings-15 midler, hvorfor risikoen for overdosering af sàdanne midler undgâs.The aggregate material does not need any tarnishing, the composition of the mixture is not obtained by weighing, thereby avoiding the use of relatively expensive weighing equipment, 5 at the construction site, the amounts of torture needed at that time can be mixed at any time, the volumetric tightness can be interposed by means of 10 very simple agents and the set value can be maintained effectively, there is no need for the addition of adjuvants, such as means of prolonging the solidification time and air admixtures, thus avoiding the risk of overdose of such agents.

B1 andekammeret kan være forsynet med en mâleventil for det tilfarte vand. Derudover kan tilslagsmaterialets udlab, der 20 er forsynet med en mekanisk drevet skydelem, som er sikret imod fastfrysning ved hjælp af opvarmningsmidler, samtidigt med at der hajt oppe i sil okammeret for tilslagsmaterialet kan være monteret et yderligere opvarmningselement, sà at fastsidning af skydelemmen og sammenklumpning af tilslags-25 materialet som falge af lettere nattefrost hurtigt kan af-hjælpes ved opvarmning.The B1 duck chamber may be provided with a metering valve for the inlet water. In addition, the outlet of the aggregate 20 provided with a mechanically driven slider which is secured against freezing by means of heating means, at the same time that an additional heating element can be mounted in the silo chamber of the aggregate, so that the slider is secured and clamped of the additive material which falls off lighter night frosts can be quickly aided by heating.

For endvidere at hindre en eventuel brodannelse i bindemidlet, kan bindemidlets transportssnegls aksel være forsynet med en 30 kam, imod hvilken der hviler en stempelstang, som ender inden i bindemiddelkammeret og bærer tværgàende fremspring.In addition, to prevent any bridging of the binder, the shaft of the binder transport auger may be provided with a cam, against which rests a piston rod which ends within the binder chamber and carries transverse projections.

Apparatet ifalge opfindelsen kan læsses pâ og transporteras pâ og af læsses fra en lastbil. Det fyldes pâ en oplagsplads og 35 kan anvendes fuldstændigt uafhængigt af dets transportmidler. Driv- og b 1andeenhederne danner en mindre del, medens opbeva-ringsrummene danner starste delen af apparatet. Apparatet er især indrettet til kun at blive genpàfyldt pâ oplagspladsen.The apparatus according to the invention can be loaded onto and transported on and off loaded from a truck. It is loaded into a storage space and 35 can be used completely independently of its means of transport. The drive and subassembly units form a minor portion, while the storage compartments form the stiffest portion of the apparatus. In particular, the apparatus is designed to be refilled only in the storage area.

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Opfindelsen forklares nærmere nedenfor i forbindelse med en eksempelvis anfort udforelsesform under henvisning til teg-ningen, hvor 5 fig. 1 viser en silo set ovenfra, fig. 2 en silo set forfra fig. 3 en silo set fra siden, 10 fig. 4 i storre mâlestok og mere detaljeret to transportsnegle og et blandekammer, fig. 5 ligeledes i storre mâlestok et snit efter linien III— 15 III i fig. 3 og afbildende transportsneglen for ti1 s 1agsmate-rialet samt blandekammeret, og fig. 6 blandekammeret set fra siden.The invention will be further explained below in connection with an exemplary embodied embodiment with reference to the drawing, in which: FIG. 1 is a top view of a silo; FIG. 2 is a front view of a silo; 3 is a side view of a silo; FIG. 4 on a larger scale and in more detail two transport augers and a mixing chamber; 5 also, on a larger scale, a section along line III-15 III in fig. 3 and depicting the transport screw for the material and mixing chamber; and FIG. 6 side view of the mixing chamber.

20 Apparatet omfatter en silo 1 med en tragtformet sektion 2, der er forsynet med et understel 3. Siloen er med en skillevæg 4 delt i to kamre henholdsvis 5 og 6. Kammeret 5 har et pâfyld-ningshul 7 for tiIslagsmateriale, medens kammeret 6 har et pâ-fyldningshul 8 for bindemiddel. Ved bunden af den tragtformede 25 de! 2 findes en transportsneg 1 9 sammen med et blandekammer 10, hvilken transportsneg! 9 drives med et konstant omlobstal af en elektromotor 11. Ved bunden af kammeret 6 findes en an-den transportsneg! 12, som stâr i forbindelse med blandekam-meret gennem et faldror 13. Transportsneglen 12 drives af en 30 elektromotor 14 med en trinlos variabel hastighedsregulator. Blandekammeret 10 er forsynet med en studs 15, som indeholder en doseringsventi1 for det tilforte vand.The apparatus comprises a silo 1 having a funnel-shaped section 2 provided with a base frame 3. The silo is divided into two chambers 5 and 6 by a partition 4, respectively. The chamber 5 has a filling hole 7 for additional material, while the chamber 6 has a binder loading hole 8. At the bottom of the funnel-shaped 25 they! 2 there is a transport auger 1 9 together with a mixing chamber 10, which transport auger! 9 is driven by a constant orbital number of an electric motor 11. At the bottom of chamber 6 there is another transport screw! 12, which communicates with the mixing chamber through a trap tube 13. The conveyor screw 12 is driven by an electric motor 14 with a continuously variable speed regulator. The mixing chamber 10 is provided with a stud 15 which contains a metering valve for the supplied water.

Mortel med den onskede sammensætning tilberedes pâ folgende 35 mâde. Fra kammeret 5 ledes tiIslagsmateriale frem til tran sportsneglen 9, der med konstant hastighed forer tiIslagsmate-rialet frem til blandekammeret 10. Samtidig hermed ledes bindemiddel fra kammeret 6 til den anden transportsneg! 12, derPrepare mortar with the desired composition in the following 35 ways. From chamber 5, the impact material is conveyed to the transom snail 9, which at constant speed feeds the impact material to the mixing chamber 10. At the same time, binder is passed from the chamber 6 to the second transport auger! 12, der

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5 transporteur bindemidlet fremt tii blandekammeret 10 gennem roret 13. Fremforingshastigheden for den anden transportsnegl 12 kan vælges efter onske ved hjælp af den trinlost variable hastighedsregulator for elektromotoren 14. Storrelsen af den 5 indstillede hastighed, hvormed den anden transportsnegl 12 drives, bestemmes eksperimentelt pà en sâdan mâde, at der op-nâs det onskede blandingsforhold mellem ti 1 siagsmateriale og bindemiddel for den aktuelle fugemortel eller betonmortel. Hastigheden for transportsneglen 9 og for blanderen i blande-10 kammeret 10 forbliver imidlertid konstant hele tiden.The conveyor binder advances through the mixing chamber 10 through the pipe 13. The feed rate of the second conveyor screw 12 can be selected after Wednesday by means of the infinitely variable speed regulator for the electric motor 14. The magnitude of the 5 set speed at which the second conveyor screw 12 is driven is determined experimentally. in such a way that the desired mixing ratio between ten liters of saw material and binder for the actual grout or concrete mortar is obtained. However, the speed of the conveyor screw 9 and of the mixer in the mixing chamber 10 remains constant throughout.

Mortel kan tilberedes pâ ovenanforte màde ved en kontinuerlig procès. Dosering af tilslagsmaterialet og bindemidlet kan ske uden brug af ventiler. Folgelig har dé to transportsnegle 9 og 15 12 en dobbelt funktion, nemlig dosering og transport.Mortar can be prepared in the above manner by a continuous process. Dosing of the aggregate and binder can be done without the use of valves. Consequently, the two transport augers 9 and 15 12 have a dual function, namely dosage and transport.

Udlobet ved bunden af tilslagsmateriale-kammeret 5 kan lukkes ved hjælp af en skydelem 20, sâledes at blandekammeret fâr mu-lighed for at blive tomt. Efter at skydelemmen 20 er blevet 20 lukket og tilferslen af bindemiddel stoppet, tommes blandekammeret 10 og det spules rent med vand.The outlet at the bottom of the aggregate chamber 5 can be closed by means of a slider 20, so that the mixing chamber has the opportunity to become empty. After the slide 20 has been closed and the binder is stopped, the mixing chamber 10 is emptied and rinsed clean with water.

For at kunne betjene skydelemmen 20 i frostvejr er der nær ved den kant, som understotter 1emmen, monteret en elektrisk var-25 meledning. Desuden er der i den overste de! af tilslagsmateriale-kammeret tilvejebragt et varmeelement 21 for at forhindre eller eliminere enhver sammenklumpning af tilslagsmaterialet.In order to operate the slider 20 in freezing weather, an electric heating line is mounted near the edge supporting the latch. Besides, there are in the top ones! of the aggregate compartment provided a heating element 21 to prevent or eliminate any clumping of the aggregate.

&rodannelser i bindemiddel-kammeret er forebygget ved tilveje-30 bringelsen af et pumpestempel 16 med tværgâende arme 17, som bevæger sig op og ned i kammeret. Denne op- og nedadgâende be-vægelse af stemplet 16 fremkaldes ved hjælp af en knast 18.& root formation in the binder chamber is prevented by the provision of a pump piston 16 with transverse arms 17 moving up and down the chamber. This upward and downward movement of the piston 16 is induced by a cam 18.

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Claims (3)

1. Fremgangsmàde ved fremstilling af mortel, sâsom fugemor-5 tel, ved brug af en mobil silo (1) til ti lslagsmaterialer og bindemiddel, som opbevares i separate kamre (5, 6) inden i si-loen, ved hvilken fremgangsmàde de volumetriske stromme af ti lslagsmaterialer og bindemiddel indstilles i forhold til hin-anden, hvorpà tiIslagsmaterialerne og bindemidlet sammenblan-10 des under tilsætning af vand, kendetegnet ved, at siloens (1) kamre (5, 6) fyldes, medens siloen (1) befinder sig pâ en oplagsplads eller i et lagerrum for tiIslagsmate-rialer og bindemiddel, hvorefter siloen (1) transporteres til byggepladsen, hvor de volumetriske stromme af tiIslagsmate-15 rialet og bindemidlet indstilles i forhold til hinanden, hvorefter tilslagsmaterialet og bindemidlet sammenblandes under tilsætning af vand til frembringelse af pâ byggepladsen brugs-færdigt mortel.A method of preparing mortar, such as grout mortar, using a mobile silo (1) for ten layers of material and binder stored in separate chambers (5, 6) within the silo, by which method the volumetric streams of ten impact materials and binder are adjusted relative to each other, whereby the addition materials and the binder are mixed together with the addition of water, characterized in that the chambers (5, 6) of the silo (1) are filled while the silo (1) is located. in a storage facility or in a storage room for additive materials and binder, after which the silo (1) is transported to the construction site, where the volumetric flows of the additive material and the binder are adjusted relative to one another, and then the aggregate and binder are mixed together with the addition of water. production of ready-to-use mortar on site. 2. Apparat til udovelse af fremgangsmâden ifolge krav 1 og omfattende en silo (1), som for neden har en tragtformet sek-tion (2), og som er monteret pâ et understel (3), sâ at siloen kan stà i opret stilling, og hvor siloen (1) har mindst en skillevæg (4) til særskilt opbevaring af tilslagsmateriale og 25 bindemiddel i hvert sit kammer (5, 6), der hver har et udlob, som forer til en blander i et blandekammer med midler (15) til tilsætning af vand, kendetegnet ved, at udlobet for tilslagsmaterialet er forsynet med en transportsnegl (9), hvis aksel ogsâ udgor blanderens aksel i blandekammeret (10), at 30 udlobet for bindemiddelkammeret er forsynet med en anden transportsnegl (12), sâledes at de to transportsnegle (9, 12) ud-leverer til blandekammeret (10), og at hastighederne for transportsnegl ene (9, 12) for henholdsvis bindemidlet og tilslagsmaterialet er indrettet til at kunne indstilles i forhold til 35 hinanden.An apparatus for carrying out the method according to claim 1 and comprising a silo (1) having a funnel-shaped section (2) below and mounted on a chassis (3) so that the silo can stand upright and wherein the silo (1) has at least one partition (4) for separately storing aggregate material and binder in each chamber (5, 6), each having an outlet leading to a mixer in a mixing chamber by means (15). ) for the addition of water, characterized in that the outlet of the aggregate material is provided with a transport screw (9), the shaft of which also forms the mixer's shaft in the mixing chamber (10), that the outlet of the binder chamber is provided with a second transport screw (12). that the two conveyor augers (9, 12) provide to the mixing chamber (10) and that the velocities of the conveyor augers (9, 12) for the binder and aggregate are respectively adjustable relative to each other. 3. Apparat ifolge krav 2, kendetegnet ved, at der findes montagedele og tilbehor, som letter pâlæsning, DK 156546 E transport og aflæsning af apparatet pà eller fra beho1dertrans-porterende lastvogne. 5 10 15 20 25 30 35Apparatus according to claim 2, characterized in that there are mounting parts and accessories which facilitate loading, transport and unloading of the apparatus on or from container transport trucks. 5 10 15 20 25 30 35