DE102007030458A1 - Device for continuous and intensive mixing of dry mortar - Google Patents

Abstract

The invention relates to a device for continuous and intensive mixing of dry mortar with water, in which a mixing container is provided with a cylindrical mixing chamber with flanges and a rotating mixer shaft with mixing tools, a dry mortar input area, a water supply and a mixed mortar dispensing area Mixing chamber has a separator and a coating, is axially open and the water supply is effected by axially spaced distribution openings and wherein the mixer shaft guiding devices, special mixing tools and coupling means, which are in detachable connection with a suitable drive means and / or a mortar pump. The invention further relates to a device of the aforementioned type, wherein the mixer shaft of the mixer is connected via a drive shaft with a conveyor of an associated storage container and a drive means switchable.

Description

The The invention relates to a device for continuous and intensive Mixing dry mortar according to the claims 1, 2, 15 and 21.

The Invention is useful for continuous and intensive mixing of difficult to mix dry mortar with water for production a sprayable mortar composition, for example, the Production of plaster layers by means of a corresponding injection device is used.

The Invention is also applicable to mixing devices for mixing of flowable concrete mortar or liquid screed, for example, for the production of floor surfaces.

The Invention is also suitable for mixing a defined Mortar mass in one with a feeding and metering device for dry mortar containers, the supply of dry mortar during the Blending interrupted for the purpose of emptying the mixer can be.

mixers or mixers are used, for example, in the mechanized production of corresponding plaster layers on a respective wall surface both in the interior of buildings and on external wall surfaces used, with a respective amount of wet, ready mixed Mortar by means of a suitable mortar pump through a pipe or hose arrangement to the respective application surface for the plaster layer is pumped.

To it is necessary to have as fluid as possible, pasty mortar mass in high quality to manufacture, including a lot of respective starting materials with a sufficient amount of water in a mixing device with a Inlet / outlet opening continuously and intensively mixed becomes.

Usually becomes after thorough mixing of the feed materials with the water by tilting of the mixing container, the mixed mortar mass issued from the same opening and the corresponding Further processing supplied.

These For example, mixers have disadvantages in that insufficient size of the mixing container only comparatively small amounts of respective mortar mass can be made, the supply of the required Water predominantly without precise quantity control takes place, thereby producing qualitatively different masses and reworking will be required, and that several mortar mixtures with the same quality only with comparatively high effort can be produced.

In order to finally with a required minimum quantity requirement a remaining mortar excess ready for use remains in the mixer, if possible, the mixer permanently moved and the drive means remain in operation, the mortar mass is disposed of or requires appropriate refurbishment effort.

From the DE 19908732 A1 and the DE 29913727 U1 for example, devices for mixing mortar are known. In these devices, a mixing tube is used, which is essentially provided with a dry mortar feeder with a connection device, a water connection and a mixed mortar outlet device.

in the Inside the respective mixing tube is a about an axis of rotation means Drive rotatable mixer shaft with mixing and conveying tools used.

With these devices is under supply of the dry Mortar and rotation of the mixer shaft and feeder a pasty amount of water continuously Mortar compound produced immediately after the mixing process at the outlet of a connected to the mixing device Mortar pump is supplied.

From the DE 202004020257 U1 a mixing device for producing a mortar composition having a housing is known in which a rotating about a rotation axis mixing shaft is arranged, which has in its axial extent and concentric to the axis of rotation arranged in a range shaft piece, and wherein the mixing shaft in another area of its axial Extension is formed by at least one connecting element, which is arranged at a radial distance from the axis of rotation.

From the DE 19917056 B4 a mixer for the production of homogeneous moistened suspensions with water is known in which a housing with a filling device a shaft-driven metering device and an axially axially connectable mixing tube are provided with a discharge and a connection for a metered input liquid, wherein the mixing tube has impact body and a pre-mixing section, a swirling section and a discharge section are formed, and wherein on the shaft an elementary rim with a plurality of radial wing elements is provided.

In the mixing devices of vorgenann Lastly, there is a disadvantage in th species that the dry feedstocks, which are transported predominantly continuously into the respective mixing space, are not always completely and intensively mixed with water.

On Reason of unmixed and dry shares or quantities of mortar mass in the total amount of mortar one Mixture can thus errors in a plaster layer produced therewith arise, whereby appropriate improvements are required can.

Of the Invention is based on a first object, a device for Mixing dry mix with water to create which is light and flexible for continuous and intensive mixing of a also difficult to mix, dry mortar mass with the water for one dependent on existing institutions as well as independent mixing plant for the production an exact layer structure can be used.

A Another object of the invention is to provide a device for Mix dry mortar with water to create which in conjunction with a Zuführeinrich device is and a during a mixing process from the supply of dry mortar independent operation of the mixer allows.

The Tasks are according to the invention with the features according to claims 1, 2, 15, and 21 solved. Advantageous developments of the invention are described in the dependent subclaims.

With the features according to the first invention is opposite the prior art advantageously a continuous and intensive mixing, especially of dry and difficult to mix Mortar with an appropriate and dosable amount of Water of high quality and fertility possible. It is of particular importance for the mixing process, that the water supply via annular arranged inlet openings from the drive side, in the flow direction of the mixed material up to the suction side of the connected Progressing cavity pump takes place. As a result of this type of water supply, it comes to an extremely uniform Moistening of the mix without binder being washed out. The wear of the mixing shaft is therefore opposite reduced to a minimum in the known state of the art.

The axially divisible, but substantially closed construction of the inventively designed Mixing chamber allows both a stationary and dependent on appropriate facilities operation for the production of relatively large quantities of mortar as well as an independent, mobile and separate operation for the production of small quantities of mortar and low demand.

The axial division with the hinged to the flanges upper part and lower part of the mixing chamber serves on the one hand a simplification required Cleaning processes within the mixing chamber, and on the other hand with the mixing chamber open, free access to the mixing tools on the shaft and on the separating means for the purpose of change and / or their cleaning possible.

The Mixing chamber is thanks to the provided at the shaft ends coupling arrangements on the one hand, for example, with a drive shaft corresponding Feeding device for dry mortar and on the other hand connected to a mortar pump, whereby the mixing chamber for mixtures and the transport of the mixed Mortar composition for producing a corresponding layer structure variable on wall and floor surfaces in industrial construction can be used.

The Mixing chamber is to match their installation position with the respective Flange assembly on the one hand with the input-side flange, for example with an existing dry mortar silo and on the other hand with the suction flange with an also present Mortar pump connected and thus between the respective Drive device and the mortar pump used.

While The operation of the facility is characterized by that in the area of the inlet opening the flange arranged on the mixer shaft, special guide surfaces the dry mortar under swirl forcibly in the introduced first area (premix area) of the mixing chamber and with rotation by the special mixing tools with the addition of Water first to the first, the mixing chamber radially dividing release agent transported and mixed.

The advantage here is that according to the invention from the arranged in the region of the inlet opening of the first flange distribution openings, the water required for mixing in the interior of the mixing chamber very early and distributed with the mortar comes into connection, which is already a good premix and compared to previously required amount of water is reduced. The use and operation of such a mixing chamber is therefore possible compared to previous systems with a lower electrical power (eg 230 V), in addition, if necessary, the setting and curing of the mortar due to the use of a ver be shortened at the same time smaller amount of water.

The according to an amount in the conveying direction inclined mixing chamber causes in conjunction with the inventively provided mixing tools a total compared to previous facilities improved Mixing and mixing of the mortar mass in the mixing chamber.

The contained in the mortar, dry ingredients will certainly be intense with the amount of water supplied and the already premixed ingredients.

Thereby Overall, a continuous and intensive mixing process allows, thereby reducing the quality of such a thing mixed mortar significantly improved, adhesion in a plaster layer to be produced or in a respective floor surface due to the lack of insufficiently mixed ingredients avoided in the mortar mass or screed respectively be excluded.

By that in the area between the first separating means and the outlet opening the mixing chamber due to the extended mixer shaft and mixing chamber further arranged second radial separating means the boost pressure is increased with simultaneous admission pressure chamber limitation and also a further improved mixing and accordingly Output of the mix achieved. Increased by the prevailing Boost pressure for the eccentric screw pump is optimal Filling and thus the performance increase by approx. 15-20% depending on the type of pump used.

By the device formed according to this invention with extended mixer shaft and mixing chamber is further lengthens the residence time of the mix in the mixing chamber, which increases the fertility and an intensive and high quality digestion of the material to be mixed achieved become.

The also provided according to the same invention Coating also reduces the through the mortar components caused friction in the interior of the mixing chamber and a "baking" the mortar on the respective walls, which also the drive power and the delivery pressure are reduced and thereby increases the useful life of the mixing chamber and the scope of application can be extended.

Furthermore is achieved with this device that otherwise difficult to process or miscible material is pumped, causing a corre sponding mortar mass compared to previous Solutions becomes pumpable and can be and spraying promoted and processed accordingly can be.

By those according to the features according to the second invention intended separation of the mixer shaft and the arrangement of mixing bridges of described type at the thus formed, axially spaced apart Shaft sections will be at the first flange in the area of the inlet opening and suction of dry mix a baffle effect and thus a backwater of already mixed, thoroughly moistened mix avoided, whereby the mixing power is increased with the The result is a continuous, intense and high-quality mixing and a correspondingly high throughput of certain mix achieved the mixing chamber with appropriate output from the mixing chamber become.

The according to the features of a third and fourth invention proposed separation of the respective drive of the mixer shaft from the drive of the conveyor allows in Advantageously, that in each case even in a partially filled or filled storage tank by switching off the conveyor continued to operate the mixer shaft and thereby a complete mixing of a lot of mix and a separate emptying of the mixer is achieved without being dry Mixture is conveyed into the mixer.

Of the Mixer can thus be completely independent of the feeder or the corresponding funding and thus without supply from further, respective dry mix into the mixing chamber, for example, until completely mixed, be operated, whereby mortar surplus or in the mixer firmly adhering and difficult to remove from the mixer amounts of mortar and corresponding expenses are avoided The inventions will be described below with reference to two embodiments and explained in more detail with reference to a drawing. In the accompanying drawing show:

1 a schematic representation of the device according to a first invention in longitudinal section;

2 a schematic representation of a device according to a second invention in longitudinal section;

3a ) and 3b ) an embodiment of a mixer shaft in longitudinal and plan view;

4a ) and 4b ) Representations of an open mixing chamber with an open separation medium after the 1 in the direction of C and in longitudinal section;

5a ) and 5b ) a flange with water supply in plan view and in section;

6 a schematic representation of a mixing device according to the third invention with reservoir with conveyor and a separable by a hollow shaft mixer drive;

7 a schematic representation of a mixing device according to a fourth invention with reservoir and conveyor and arranged parallel to the conveyor mixer drive and

8th . 9 an embodiment of a flap for the reservoir in side and front view, schematically.

Embodiment 1

In the 1 is shown according to a first embodiment, a device according to the first invention in longitudinal section as a mixing container, with the position 1 is marked.

The cylindrical mixing container 1 has hereafter also a cylindrical and substantially tubular mixing chamber 2 on, which is formed comparatively long compared to their diameter.

The mixing chamber 2 is made according to the embodiment of sheet steel parts, the upper and lower surface part 2.1 and 2.2 hemispherical curved and cylindrical by forming in each case in the horizontal extent axially extending parting surfaces 2.3 is formed, which is hinged by corresponding connecting means (not shown) movable at standstill of the mixer, releasably joined, and wherein, for example, at the respective flange corresponding joints or the like are provided (not shown).

Through the along the dividing surfaces 2.3 arranged upper and lower faces 2.1 and 2.2 is the mixing chamber 2 thus open in the axial direction, whereby the cleaning of the interior, the release agent and the mixer shaft with the corresponding tools and their maintenance, assembly and disassembly are much easier.

The mixing chamber 2 is in a closed state on a front side with a first flange 3 with an inner and an outer flange part 3.0 and 3:01 and a water supply device 3.1 with a channel 3.11 and distribution openings 3.2 connected, and the flange 3 also has a concentric inlet opening 4 on.

The channel 3.11 is according to the embodiment annular in the flange 3:01 for example, introduced by turning ( 5b ).

The in the 1 Distributor openings not shown 3.2 are in a multiple arrangement, for example, also annular according to the arrangement of the channel 3.11 and spaced apart in the inner flange portion 3.0 arranged, wherein the outlet openings axially into the interior of the mixing chamber 2 are directed.

As a result, during the operation of the device advantageously a homogeneous distribution of a defined amount of water supplied via the Wasserzuführeinrichtung 3.1 and the channel 3.11 on the inside of the mixing chamber 2 amount of dry mortar (not shown) for intensive pre-mixing already in the region of the inlet opening 4 the mixing chamber 2 in the direction of flow possible.

At the first flange 3 according to the drawing axially opposite end of the mixing chamber 2 is a second flange 5 with a concentric outlet opening 6 with the faces 2.1 and 2.2 the mixing chamber 2 connected.

Provided with a radial separation surface, both the flange can 3 as well as the flange 5 be designed to be divisible, for example, to simplify the cleaning (not shown).

In the outlet opening 6 is in accordance with the drawing inside a preferably concentric, according to the interior of the mixing chamber 2 wide, funnel-shaped recess 6.1 incorporated, by which an improvement of the transport of ready mixed mix from the mixing chamber 2 is achieved. The mixing chamber 2 For example, it can be mounted between a dry mortar hopper and a mortar pump.

On the one hand, this is the flange 3 connected to a corresponding flange of the reservoir for dry mortar, not shown, and with a reservoir usually associated with the shaft of a conveyor, and the flange 5 on the other hand connected to a corresponding flange of the mortar pump, also not shown, whereby the mixing chamber 2 adjacent to a drying area A and a wet area B.

The inner surface of the mixing chamber 2 and the inner surfaces of the flanges 3 and 5 can with an unspecified, friction reducing and preferably hydrophobic coating be provided, whereby the mixing process by reducing the so-called "caking" of wet mortar, in particular caused by the respective binder on the respective walls and improved friction and improved cleaning of the mixing chamber 2 and adjacent areas.

In the interior of the mixing chamber 2 is according to the embodiment of the 1 centric and in the axial direction a mixer shaft 8th arranged.

The mixer shaft 8th has one to the axis of the mixing chamber 2 parallel axis of rotation 8.1 on, and it is according to the embodiment as an extended shaft portion having a first front end 9 with a first coupling arrangement 10 outside the flange 3 and a second front end 11 with a second clutch arrangement 12 inside the mixing chamber 2 rotatably arranged between corresponding connection means (not shown).

From Advantage is when the device is altogether in the direction of the wet area B is inclined by an amount (not shown), for example to improve the mixing process and the output of the mix.

The respective clutch arrangement 10 respectively 12 consists according to the embodiment of a not-described in detail, simple jaw clutch, which in each case releasably correspond to a corresponding coupling part of the connection means of a drive element, not shown, of the storage device on the one hand and the mortar pump on the other hand; Other and correspondingly suitable coupling variants can be used here alternatively (not shown).

At the circumference of the mixer shaft 8th is in the area of the inlet opening 4 a guide arranged, consisting of individual fins 13 consists whose respective guide surface in the radial direction and in a direction of rotation 8.1 in the direction of rotation of the mixer shaft 8th inclined angle ∇ are arranged and their respective outer peripheral edge (see 3b ) to the inner wall of the inlet opening 4 is approximated.

In the interior of the mixing chamber 2 are also on the peripheral surface of the mixer shaft 8th according to the embodiment described here with the mixer shaft 8th detachably connected mixing tools 15 to 18 intended.

The one in the area of the inlet opening 4 provided first part of mixing tools in this case has at least one on the circumference of the mixer shaft 8th radially arranged mixing bar 15 , preferably a plurality of mixing ribs 15 circumferentially spaced with the circumferentially spaced and / or opposite, at least one obliquely arranged mixing bar 16 , preferably with several circumferentially arranged mixing webs 16 corresponding, is / are provided.

Due to the detachable connection with the mixer shaft 8th depending on the dry mortar to be mixed, the type and number of the circumference of the mixer shaft 8th be varied distributed mixing tools.

In the area between the mixing tools 15 and 16 is at the circumference of the mixer shaft 8th an arrangement of, for example, four radial, flat mixing blades 15.1 provided, with their respective surface preferably at an angle to the axis 8.1 , according to the direction of rotation positively adjusted and the wall 2.4 tangent to their respective exterior, on the shaft 8th are detachably or fixedly arranged at the same distance from each other.

At a distance to the first mixing tools 15 and 16 is in the range of the clutch arrangement 12 on the circumference of the extended mixer shaft 8th Furthermore, an arrangement of radial webs 17 provided, which at its distal end portion in the direction of the flange 6 mixing spoon inclined by an amount 18 each having a substantially arcuately arranged outer contour.

The non-illustrated outer contour of each mixing spoon 18 tangent with rotating mixer shaft 8th almost the inner surface 2.4 the mixing chamber 2 ,

According to the described embodiment are on the inner surface 2.4 the mixing chamber 2 Furthermore, a first and a second release agent 19 ; 19.1 provided, which each zueinender spaced in a defined, radial position between the mixing tools in the mixing chamber 2 detachable (not shown) on the inner surface 2.4 are arranged so that between these the mixing tools 15 . 15.1 . 17 and 18 are freely rotatable.

The 2 shows a schematic sectional view through an analogous to the 1 trained mixing chamber 2 in which, however, the mixer shaft 8th in externally the same arrangement of the clutch assembly 10 according to the second invention within the mixing chamber 2 shortened and in shaft sections 8.2 and 8.3 divided, and wherein the thus formed end portions 8.4 ; 8.5 by means of at least one arranged on these holders of a mixing bridge 14 spaced apart and are rotatable in the axial direction.

The at least one mixing bridge 14 with a body edge 14.1 is preferably with mixing bars 17 ; 18 analogous to the embodiment according to the 1 combined, and where the respective body edge 14.1 according to the number of circulating mixing bridges 14 the inner surface 2.4 the mixing chamber 2 affected.

At the right of the drawing in the mixing chamber 2 at the shaft section 8.3 located, frontal end portion are analogous to the embodiment in 1 Mixing tools 17 and 18 and the clutch assembly 12 arranged, whereby on the one hand next to the left-side mixing area further mixing of mix in the respective region of the mixing chamber 2 and on the other hand, a corresponding, releasable connection to respective terminal device (not shown) can be realized.

The division of the mixer shaft 8th According to the described embodiment, in conjunction with the arrangement of, for example, several, distributed on the circumference of the shaft portions 8.2 and 8.3 arranged mixing bridges 14 and the other mixing tools as well as the release agent 19 a reduction of the bounce effect in the region of the inlet opening 4 and a high mixing performance.

A particularly good mixing effect is achieved when the mixing bridges 14 in each case at the shaft sections 8.2 and 8.3 are arranged that their body edges 14.1 in relation to the axis of rotation 8.1 at an angle in the direction of the discharge side on the flange 6 positively skewed are the According to the 1 and 2 on the inner surface 2.4 the mixing chamber 2 shown release agent 19 . 19.1 19.2 respectively 19.3 may be disc-shaped or segmented with recesses 21 be formed and arranged releasably, with a radial arrangement provided and with respect to the shaft 8th and the respective shaft portion 8.2 respectively. 8.3 an inner distance a is formed.

In the 3a and 3b is a mixer shaft 8th in shortened version without mixing blades 15.1 , However, shown with an arrangement of differently designed mixing tools, which is preferably used for mixing operations with easily mixable mix.

In the 3b is a plan view of the mixer shaft 8th shown in which the additional extension and inclination of the mixing spoons 18 in the direction of rotation of the mixer shaft 8th and the arrangement of the guide surfaces of the guide arrangement 13 are schematically visible.

In the 4a and 4b is an open mixing chamber 2 with open release agent 19 schematically shown in plan view and in longitudinal view.

Like from the 4a and 4b can be seen, the separation of the mixing chamber takes place 2 in her upper and lower part 2.1 and 2.2 along the dividing surface 2.3 , while at the same time in the mixing chamber 2 at a corresponding position arranged release agent 19 is divisible in the same way and whereby the first and second part 19.1 and 19.2 of the release agent 19 are formed.

While this example, lower part 2.1 with the second part 19.2 from the upper part 2.2 separated and with this together on one in the respective flange 3 and 6 arranged swivel / bearing point 23 can be pivoted, therefore, the part shown here 19.1 of the release agent 19 at the bottom 2.2 the mixing chamber 2 remain or vice versa.

The upper and lower part 2.1 and 2.2 can do this, for example, at the pivot / bearing point 23 by means of appropriate and on the respective flanges 3 and 5 provided, not shown glands 24 and 25 or the like means.

The segments 20 the separator 19 are in this case formed annularly with their respective outer end face and arranged frontally facing each other, and they are held on a respective, unspecified ring land, passing through the first part 19.1 and second part 19.2 formed and in a manner not described in detail on the inner surface of the first and second partial surface 2.1 and 2.2 the mixing chamber 2 is detachably arranged.

The inner face of respective segments 20 opposite the peripheral surface of the mixer shaft 8th or also a corresponding shaft section 8.2 . 8.3 is formed with a distance a (s. 1 . 2 ).

The second release agent 22 can be like the first release agent 19 and / or in addition to the aforementioned embodiment, for example, disc-shaped without segments 20 and recesses 21 be educated.

In the 5a and 5b is the arrangement of the water supply into the interior of the mixing chamber 2 ( 1 and 2 ) through the flange 3 through, represented.

How about the 5a and 5b cal is matically apparent, in this case takes place the water supply via a water supply 3.1 , which via a corresponding connection arrangement, for example, at the periphery of the flange 3 is arranged, and via another connection to an annular channel 3.11 in the flange 3 , which is made for example via a bore, not shown.

The annular channel 3.11 is here by division of the flange 3 formed by, for example, in one of the inner surfaces of a flange 3.0 or 3:01 an annular groove is inserted, which with a number of corresponding and spaced apart distribution openings 3.2 is connected in the region of the course of the annular groove.

By producing a correspondingly executed, sealed connection, for example by means of a suitable sealant or the like and in the correct position, firm assembly of the flange parts 3.0 and 3:01 together is the annular channel 3.11 in the flange 3 formed, whereby this after completion with the partial surfaces 2.1 and 2.2 as well as the flange 5 and forming the mixing chamber 2 a controllable and homogeneous water supply via the here radially or otherwise arranged Wasserzuführeinrichtung 3.1 into the interior of the mixing chamber 2 and dry mortar located there.

The according to the inventions each trained and inside defined coated mixing chamber is preferably for mixing of mortar for a mechanized plaster application both as a mixer for hard-to-mix dry mortar between a reservoir with conveyor and an eccentric screw pump for plaster and / or concrete mortar can be used, wherein the mixing tools and separating devices as Wear parts are formed.

About that In addition, the device can be used for manual processing Plaster or concrete mixtures as well as for others, sprayable Mixtures, such as spray-on or color mixtures, in conjunction with a Mortar pump can be used.

Embodiment 2

In the 6 a mixing device according to a further invention is shown schematically in section and with the position 101 characterized.

After 6 has the mixing device 101 an example box-shaped reservoir 102 with a housing 103 on, with a cross-sectional area, not shown, and a lower part of the housing according to the drawing 103 on all sides rejuvenating output area 104 is trained.

The housing 103 Overall, it is designed to be inside the reservoir 102 and usually dry mix 105 automatically and easily in the output area 104 concentrated and can be removed therefrom in a corresponding manner, for which purpose the lower wall of the housing in the direction of egg ner assumed output or transport direction B1 has a tilt arranged by a defined amount (not shown).

In the lower part of the case 103 is longitudinal to the output area 104 a conveyor 106 arranged, which a rotatable, for example cylindrical hollow shaft 107 with a lateral surface 107.1 and a certain length.

On the lateral surface 107.1 is in a particular system and spaced from each other a number of funding not shown 108 arranged circumferentially.

The funding 108 are designed so that upon rotation of the conveyor 106 according to a predetermined direction of rotation the mix 105 in the transport direction B1 from the discharge area 104 can be issued.

The hollow shaft 107 is mounted longitudinally displaceable in a specific area in bearing arrangements, not shown, and designed so that in the inner, hollow longitudinal space a shaft portion 109 can be arranged, which at its approximately the length of the hollow shaft 107 corresponding respective end face a coupling element 110 respectively 111 having.

At a distance to the output area 104 is on the case 103 Furthermore, a housing 112 arranged on which on the one hand a mixer 113 with a mixer housing 113.1 and an inlet opening 114 is arranged, in which, for example, centrally a shaft section 115 is arranged, which with the coupling arrangement 111 corresponds and with the mixer 113 and his mixing tools, not shown here is in detachable connection.

In one according to the 6 the mixer 113 opposite section of the hollow shaft 106 or the shaft section 115 on the housing 112 arranged area is designed for example as a geared motor drive 116 arranged.

The drive 116 is on the output side with a shaft section 117 a not shown, switchable coupling 118 rotatably connected, which according to the embodiment described here by means of a lever 119 can be coupled and uncoupled.

At the turn output side position of the clutch 118 this is one end of the hollow shaft 107 rotatable with the disengageable part of the coupling 118 connected while a non-detachable part of each output shaft of the clutch 118 with a corresponding component with the clutch assembly 111 of the shaft section 109 is in corresponding rotatable and / or detachable or decoupled connection.

In the 7 a further invention is shown schematically in section, wherein an approximately same construction of the reservoir 102 , the drive 116 and the mixer 117 like in the 6 shown, are provided.

Opposite the 6 However, according to the in 7 illustrated embodiment in the reservoir 102 in the lower part of the housing according to the drawing 103 in bearings not shown here, a shaft section 120 stored, on the outer wall 120.1 encompassing and analogous to 6 a number of corresponding funding 121 with in opposite to a dispensing area 122 effective arrangement is provided.

The output area 122 is on his Zeichnungsungsgemäß lower wall of a housing 123 surrounded, whose walls 123.1 with the housing 103 connected and the one hand the mixer 113 and this drawing according to approximately horizontally opposite, on the other hand on a corresponding flange a comparable drive means, such as a drive 196 , exhibit.

The drive 116 is here on the one hand with a drive shaft 124 connected, which in one opposite the shaft portion 120 spaced, same position is arranged and with the mixer 113 at its shaft section 115 in the area of a chamber 125 rotatably connected.

The chamber 125 is formed with a defined volume and with corresponding wall parts on the one hand at the inlet opening 114 of the mixer 113 and on the other hand between the wall 123.1 of the housing 123 and the output area 122 at the bottom of the case according to the drawing 103 arranged, one to the reservoir 102 open transition is formed, with a flap 126 either to close or to open.

The drive shaft 124 also stands with one in the drive 116 and the respective wall 123.1 arranged transmission arrangement 127 . 128 in connection.

The gear arrangement 127 . 128 may for example consist of an arrangement of two meshing gears of different or the same size, each at the corresponding area with the shaft portion 120 on the one hand and at the corresponding area with the drive shaft 124 on the other hand.

Thus, it is possible that upon rotation of the drive shaft 124 forcibly the shaft section 120 with the funding 121 set in motion and mix 105 in an appropriate amount by the shutter located, for example, in the open position 126 and the inlet opening 114 through into the mixer 113 is encouraged.

In contrast, in the closed position of the flap 126 the promotion of mix 105 in the mixer 113 interrupted.

The mixing process is thus in the mixer 113 in a simple manner, regardless of further supply of mix 105 possible, so that, for example, a predeterminable amount of mortar mixed and by the separate operation of the mixer 113 completely out of the mixer 113 can be removed.

It is also possible between the respective, for example as a geared motor 117 trained drive 116 and the gear arrangement 127 . 128 , a switchable clutch 129 to separate the respective shafts from the drive to arrange.

At the clutch assembly 130 located portion of the drive shaft 124 In addition, an arrangement of defined on the circumference mixing blades 131 to improve the transport of mix 105 in the mixer 113 be provided.

Hereinafter, the operation will be described with reference to the embodiment of the device according to the 6 explains:
Before the start-up of the fully assembled, connected to a corresponding voltage source mixing device and filled with a lot of required mixing material reservoir, the conveyor is in a connected to the shaft portion, the clutch and the drive device position.

After commissioning of the drive device and rotation of the conveyor thus mixed material is transported into the mixer, in which it mixed with the addition of water and due to the mixing tools with rotating movement and is discharged according to the mixer tools as a finished mortar composition from the mixer.

The Mixing device is thus initially operational for as long as and able to work, as a certain amount of dry Mortar mass is located in the storage tank or until the drive is stopped.

Becomes the drive stopped, the transport and the issue of mortar Although interrupted, but remains an appropriate amount Mortar with the disadvantages mentioned in the mixer.

With the invention it is possible in contrast, the Supply of dry mix in the mixer to any or required time by pressing the switchable Coupling and thus successful separation of the conveyor from the drive, with the shaft section between the drive and the shaft portion of the mixer and thus the mixer tools continue to remain in a rotating motion.

The Mixer shaft of the mixer can in this way contrary to the previous Solutions independent of the conveyor operated, for example, until the mixer is emptied or again mix and water were fed into the mixer is.

The operation of the device according to the 7 is analogous to the above-described operation of the device according to the 6 to understand.

In the 8th and 9 an embodiment of the arrangement of a closure flap for the reservoir in side view (open) and in front view (closed) is shown schematically.

In particular, in the event that the storage or material container 102 positioned directly under a construction site side free fall silo (not shown) for dry mortar and filled by means of transfer hood, is in the storage or material container 102 a non-illustrated closure flap 126.1 used, which at the end of the mixing process by on an axis 126.2 by means of a likewise not described operating element 126.3 rotation or pivoting from its vertical, open position ( 8th ) in the horizontal position ( 9 ) can be closed. This stops the dry mortar flow and completely drains the chamber below the flap 125 is guaranteed. The device can also be used when filled with bagged goods. It is also in connection with both the device according to the 6 and the 7 as well as separately usable.

1

mixing tank

2

mixing chamber

2.1

lower part

2.2

top

2.3

interface

2.4

palm

3

first flange

3.0

Interior flange

3:01

appearance flange

3.1

water supply

3.11

channel

3.2

distributor opening

4

inlet port

5

second flange

6

outlet

6.1

recess

8th

mixer shaft

8.1

axis of rotation

8.2

Shaft section, front

8.3

Shaft section, behind

8.4

end portion, front

8.5

end portion, behind

9

First front

10

First clutch assembly

11

Second front

12

Second clutch assembly

13

baffle

14

mixed bridge

14.1

body edge

15

Mixed bridge, just

15.1

mixing blade

16

Mixed bridge, inclined

17

Web, just

18

Mixed bridge, tilted

18.1

Mixing blade adjusted diagonally

19

first release agent

19.1

first part

19.2

second part

20

segment

21

recess

22

second release agent

23

joint

24

screw

25

screw

101

mixing device

102

reservoir

103

casing

104

output area

105

mix

106

Conveyor

107

hollow shaft

107.1

lateral surface

108

funding

109

shaft section

110

first coupling member

111

second coupling member

112

casing

113

mixer

113.1

mixer housing

114

inlet port

115

shaft section

116

drive

117

Motor / gearmotor

118

clutch

119

lever

120

shaft section

120.1

Outer wall

121

funding

122

output area

123

casing

123.1

wall

124

drive shaft

125

chamber

126

Closing flap; pusher

126.1

variant the flap

126.2

Pan / axis of rotation

126.3

Lever, operating element

127

transmission assembly

128

transmission assembly

129

clutch

130

clutch

131

mixing blades

A

dry areas

B

wet areas

B1

Transport direction; output

C

callout

D

view direction

a

inner distance

α

angle

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 19908732 A1 [0010]
• - DE 29913727 U1 [0010]
• - DE 202004020257 U1 [0013]
• - DE 19917056 B4 [0014]

Claims (27)

Apparatus for the continuous and intensive mixing of dry mortar with water, with a mixing container with radial release agent, a drive connected, rotating mixer shaft with mixing tools, a dry mortar input area with a water supply, a mixing area and a mixed mortar discharge area, characterized in that • the mixing container ( 1 ) is arranged about an inclined amount in the conveying direction and an axially divisible, cylindrical mixing chamber ( 2 ) with end flanges ( 3 ; 5 ) with a concentric inlet opening ( 4 ) on the one hand and a concentric outlet opening ( 6 ) with a concentric recess ( 6.1 ) on the other hand, • in the region of the inlet opening ( 4 ) on the inside of the flange ( 3 ) a number of with the Wasserzuführeinrichtung ( 3.1 ), axial distribution openings ( 3.2 ), the mixing chamber ( 2 ) and the mixer shaft ( 8th ) are formed axially extended by an amount and the mixer shaft ( 8th ) is formed as a shaft portion, which at its end faces ( 9 ; 11 ) Coupling arrangements ( 10 ; 12 ), which has a clutch arrangement ( 10 ) outside the mixing chamber ( 2 ) in the region of the inlet opening ( 4 ) and the other coupling arrangement ( 12 ) within the mixing chamber ( 2 ) is located in the inlet opening ( 4 ) rotatable part of the mixer shaft ( 8th ) adjustable baffles ( 13 ), • at the mixer shaft ( 8th ) Groups of interchangeable and mutually offset mixing tools ( 15 ) and ( 16 ) to ( 18 ) of different geometries and angular positions in combination with mixing blades ( 15.1 ), • the mixing chamber ( 2 ) in the region of the inlet opening ( 4 ) the mixing tools ( 15 ; 16 ) and the release agent ( 19 ), and in the region of the outlet opening ( 6 ) between the mixing blades ( 15.1 ) and the mixing tools ( 17 ; 18 ) at least one further release agent ( 22 ) changeable in relation to the shear wave ( 8th ) radial arrangement for admission pressure chamber boundary and increase the boost pressure is arranged, • the mixing tools ( 15 ; 16 ) consist of straight and inclined mixing webs and approximately centric in the mixing chamber ( 2 ) while the mixing tools ( 17 ; 18 ) on webs distally arranged, planar areas and in the region of the coupling arrangement ( 12 ), and • the inner surfaces of the mixing chamber ( 2 ) and flanges ( 3 ; 5 ) have a coating. Device for continuous and intensive mixing of dry mortar with water, in particular device according to claim 1, characterized in that • in the mixing chamber ( 2 ) the mixer shaft ( 8th ) is separated in the axial direction and at a rotational axis ( 8.1 ) rotatable shaft sections ( 8.2 ; 8.3 ) with inner end sections ( 8.4 ; 8.5 ) and an inner and an outer coupling arrangement ( 12 ; 10 ), the shaft sections ( 8.2 ; 8.3 ) in one between the inlet opening ( 4 ) and the axially approximately centrally disposed release agent ( 19 ) mixing chamber area the end sections ( 8.4 ; 8.5 ) spaced apart and by at least one radially arranged, substantially U-shaped mixing bridge ( 14 ) with a body edge ( 14.1 ), • the mixing bridge ( 14 ) with an area depending on the direction of rotation with respect to the axis of rotation ( 8.1 ) is diagonally adjustable and upon rotation, the respective body edge ( 14.1 ) the inner surfaces ( 2.4 ) of the mixing chamber ( 2 ), and • on the shaft section ( 8.3 ) in the region between the separator ( 19 ) and the inner clutch assembly ( 12 ) a number of radial webs ( 17 ) having at their ends sheet-shaped, angle-adjustable mixing surfaces ( 18 ) is arranged, the distal outer edges of which rotate around the inner surface ( 2.4 ) of the mixing chamber ( 2 ). Device according to claim 2, characterized in that on the circumference of the shaft sections ( 8.2 ; 8.3 ) two or more evenly distributed mixing bridges ( 14 ) are arranged adjustable. Device according to one of claims 2 or 3, characterized in that the mixing bridges ( 14 ) with those on the shaft section ( 8.2 ) arranged straight and displaced mixing tools ( 15 ; 16 ) correspond. Device according to one of claims 1 to 4, characterized in that the release agent ( 19 ; 22 ) disc-shaped or at least one row of annular on the inner surface ( 2.4 ) of the mixing chamber ( 2 ) arranged radially inwardly and spaced from each other, disc-shaped segments ( 20 ) whose inner body edges face the shaft ( 8th ) or the shaft section ( 8.3 ) form a distance (a). Device according to claim 5, characterized in that the respective segments ( 20 ) at least one recess ( 21 ) exhibit. Device according to one of claims 1 to 6, characterized in that the release agent ( 19 ; 22 ) and the mixing tools ( 13 ) to ( 18 ) are formed partially and changeable. Device according to one of claims 1 to 7, characterized in that the mixing chamber ( 2 ) made of axially divisible and on the flanges ( 3 ; 5 ) hinged subareas ( 2.1 ; 2.2 ) is formed. Device according to one of claims 1 to 8, characterized in that the coating of the inner wall surfaces ( 2.4 ) of the mixing chamber ( 2 ) and flanges ( 3 ; 5 ) is formed as a hardened and / or hydrophobic surface. Device according to one of claims 1 to 9, characterized in that the guide surfaces ( 13 ) each at an angle (∇) to the axis of rotation ( 8.1 ) in the direction of rotation of the mixer shaft ( 8th ) and with its outer peripheral region opposite the inner surface of the inlet opening ( 4 ) are spaced. Device according to one of claims 1 to 10, characterized in that the distribution openings ( 3.2 ) of the water connection device ( 3.1 ) with one in the flange ( 3 ) channel ( 3.11 ), in the region of the inlet opening ( 4 ) on the flange ( 3 ) are arranged inside annular and directed axially inwards. Device according to one of claims 1 to 11, characterized in that the mixer shaft ( 8th ) is connectable on the one hand with a separate drive means or with a conveyor for the dry mortar and / or on the other hand with a mortar pump, wherein the coupling means ( 10 ; 12 ) are in releasable connection with a respective drive shaft or output shaft. Device according to one of claims 1 or 5-12, characterized in that the mixing blades ( 15.1 ) as a group of at least two, but preferably four mixing leaves ( 15.1 ) is formed, which are adjustable in angle and the distal peripheral surfaces of the inner surface ( 2.4 ) of the mixing chamber ( 2 ). Device according to one of claims 1 to 13, characterized in that the mixing chamber ( 2 ) as a post-mixing device with the flange ( 3 ) at the connection of the storage container and with the flange arrangement ( 5 ) is releasably inserted at the connection of the mortar pump between the reservoir and the mortar pump. Mixing device for the production of homogeneous, well-moistened suspensions, with a reservoir for mix with a housing having an output portion and a conveying means having conveyor, which is rotatably connected via a shaft on the one hand with a drive and on the other hand with a mixer shaft of a mixer, characterized in that the Output area ( 104 ) of the storage container ( 102 ) inclined in the transport direction (B1) and the drive ( 117 ) between the conveyor ( 107 ) and the mixer shaft ( 115 ) is formed separable. Mixing device according to claim 15, characterized in that one of the conveyor ( 106 ) associated shaft portion as axially displaceable and rotatably mounted hollow shaft ( 107 ) is formed on the outer lateral surface ( 107.1 ) the funding ( 108 ) are arranged according to the intended transport direction (B1). Mixing device according to claim 15 or 16, characterized in that within the hollow shaft ( 107 ) a rotatable shaft portion ( 109 ) is arranged, which via coupling elements ( 110 ; 111 ) on the one hand with the drive ( 117 ) and on the other hand with a shaft section ( 115 ) of the mixer ( 113 ) is in switchable connection. Mixing device according to one of claims 15 to 17, characterized in that between the drive ( 117 ) and the hollow shaft ( 107 ) a switchable coupling ( 118 ) is arranged. Mixing device according to claim 18, characterized in that the coupling ( 118 ) manually by means of a lever ( 119 ) or mechanically by means of corresponding drive means is operable. Mixing device according to one of claims 15 to 19, characterized in that the hollow shaft ( 107 ) on the one hand on the mixer housing ( 113.1 ) and on the other hand in a clutch ( 118 ) receiving housing ( 112 ) is stored. Mixing device, in particular according to claim 15, characterized in that the dispensing area ( 122 ) of the storage container ( 102 ) is inclined in the conveying direction (B1) and one with conveying means ( 121 ) and essentially the output area ( 122 ) adapted, rotatable shaft portion ( 120 ), which via a in one with the output area ( 122 ) connected housing ( 123 ) parallel to the shaft section ( 120 ) spaced drive shaft ( 124 ) with a geared motor ( 117 ) is rotatably connected. Mixing device according to claim 21, characterized in that in the housing ( 123 ) between the drive shaft ( 124 ) and the geared motor ( 117 ) a gear arrangement ( 127 ; 128 ) with a switchable coupling ( 129 ) is arranged. Mixing device according to claim 21 or 22, characterized in that the shaft portion ( 120 ) receiving lower portion of the reservoir ( 102 ) with the mixer ( 113 ), wherein between the inlet opening ( 114 ) of the mixer ( 113 ) and the walls ( 123.1 ) of Ge housing ( 123 ) on an axis ( 126.1 ) one with a through a control ( 126.2 ) movable shutter / slider ( 126 ; 126.1 ) lockable chamber ( 125 ) is arranged. Mixing device according to one of claims 21 to 23, characterized in that the shaft section ( 115 ) of the mixer ( 113 ) via a coupling ( 130 ) with the drive shaft ( 124 ). Mixing device according to one of claims 21 to 24, characterized in that the drive shaft ( 124 ) at its inlet ( 114 ) of the mixer ( 115 ), frontal peripheral region a number of angle-adjustable mixing blades ( 131 ) having. Mixing device according to one of claims 21 to 25, characterized in that the gear arrangement ( 127 ; 128 ) is designed as a gear transmission, friction gear or belt transmission. Mixing device according to one of claims 15 to 25, characterized in that the and mixing tools used shaft sections each one separately have controllable drive.