DE10026614A1 - Dry mixing plant for polystyrene granules and cement, comprises inclined conveyor casing with screw mounted eccentrically to provide recirculation path - Google Patents

Abstract

Mixer (2) has a recirculation path (86) inside the casing, which can be changed by altering the direction of screw rotation. It includes pressing- and recycling regions (89, 90), with an extractor (3) which can be closed. The rotary conveying screw (9) with gradient ( alpha ), lies with clearance from wall sections (38, 84), against which pressure is exerted when the screw is rotated. This causes local pressing and frictional-heating. The constituents (5, 6) are mixed and conditioned. Particles are rolled and broken down. The granules become coated with a layer of adhesive binder. An Independent claim is included for the corresponding method of manufacture. The product itself, is also claimed. Preferred features: Distinct upper and lower wall sections (34, 35) forming the riser tube surround the screw, rising at angle alpha . A hopper (10) which can be shut off tightly, receives the constituents. Lower and upper openings (12, 33) complete the solids recirculation path, with an outlet tube (4) connected to the upper end of the riser. The tube forms a variable-volume filling unit. Its upper and lower openings (14, 16) are closed by flap valves (15, 17). A rod (19) and lever (18) are provided for automatic- or manual adjustment of the valves. The screw is located more closely to the lower section and sides of the casing, minimum clearance being a few centimeters. The recycling zone is formed in the region of greater clearance, on the upper side of the screw. The casing comprises trough-like sections. Variants of the design, based on the foregoing principles, including versions with parallel, multiple mixing screws, are also described.

Description

The invention relates to a plant and a method for the manufacture provision of dry granulate binder products, esp special of polystyrene granules-cement products containing a mixing device with a driven screw conveyor, a discharge device connected to it with a following filling unit, being in the mixing device Kompo nenten - at least one granulate and at least one binder tel - can be filled and mixed in dry form, and a polystyrene granulate cement product.  

Such systems, the mixing device a conventional Has mixing container with at least one agitator for mixing granulated polystyrene and / or regranulate rigid polystyrene foam with hydraulic binders, ins especially used with cement, the blended compo in the resulting dry mix through the un Different bulk density after longer transport and / or Mix the storage time again so abruptly that the especially in the packaging containers, especially in Plastic or paper bags in the lower part the heavier hy drastic binders and that is essential deposits lighter granules. Therefore u. a. also at Transport of the packaging containing the dry batch Ratios, especially those made of paper material Containers cracks occur, the leaks and thus ver loss of at least one of the components can.

On the other hand, knowledge of this segregation problem largely the conventional dry batch production and - Transport avoided by making the components easier Transport in separate containers animals and on site in a wet mixing device with addition at least be mixed by water, being wet mixer are usually equipped with an agitator.

The disadvantage of both mixing methods is that in both processes after a long storage period until final processing processing a density-related segregation in areas of each different density components. In the case it is considered disadvantageous in wet mix production, that the closed-cell foam particles have no water accept and record.  

But to achieve a cement stone scaffold during hardening Chen, it is because of the water repellent property of the Foam particles and the different bulk density usual to add the foam particles with an adhesion promoter coat before the binder with or without the Water is added to get out of the state of one of the ent mixture subjected to mixture in the state of a homo dry mix.

To bring about such a mixture of the product is one Machine system with several machine part systems from the Son derdruckschrift of the magazine: "Kunststoffe im Bau", booklet 17, page 1-12 -, page 3 ff., Known with which a Troc essence mixture essentially from granulate, from adhesion promoter, especially pressure sensitive adhesives and made of cement the first in a first machine subsystem DC mixer for mixing the granules and the Adhesion promoter and its attachment to the particle surface Chen and a second in a second machine part system DC mixer at least for mixing the adhesion medium-sized granules and cement. The further preparation of the granules is said to be by powdering by means of cement and finely ground stone powder the. These special individual treatments in the different Machine subsystems require a high cost and Cost of materials. Most of the time the Troc plays in the tuning sand as an additional filler still plays a role, which, however, amounts to a certain segregation.

The surfaces of the particles become through the adhesion promoter dissolved and go into a sticky state, the added cement deposited like a covering, especially attached sticks. Plastic dispersions can serve as adhesion promoters and glue, e.g. B. epoxy resin dispersions are used but through their use the cost of the dry mix  with regard to the amount of foam particles that can be used increase considerably.

In the document DE 44 28 200 A1 there is one method and one Device for producing a polystyrene granulate non-flammable recyclable rigid polystyrene foam known being in a mixing container, which as a conventional screw is designed with a relatively long screw conveyor, the production of a non-flammable dry mix Granules and surfactants in a "one-way" direct feed-through consequences. In order to preserve the flame-retardant granules a screw funnel with a vaccination device in front of the screw conveyor switched, via which a surfactant solution with a pump leads. At the end of the screw conveyor there is an Ab Filling unit in the form of a bagging device with which the Troc is packaged in airtight bags. The Mischvor aisle and transport take place during the rotation of the conveyor derschnecke towards the filling unit. The solvent escapes, the surfactants are deposited on the particle surface ab, but have no influence on improved training the resulting dry mix.

Furthermore, from the publication DE 44 19 965 A1 a Ver drive to mineral coating of plastic materials knows where the plastic materials are ground, where then the resulting plastic particles from a heat exchanger exposed to hot air and these heated particles with a binder preheated to the same temperature Production of a non-positive connection can be mixed. With the targeted heat treatment of the particle surfaces a surface-thin adhesive layer on the particle surface be generated. After adding the also in another When the heated binder is applied, the composite becomes abrupt cooled down. The binder remains glued thin be liable. To apply an adhesive layer on the particle surfaces  generate, is ver on cost-intensive adhesion promoters waived, but are still the required temperatures generating devices very material and expensive.

The invention is therefore based on the object of a system and a process for producing dry granules Binder products, especially of polystyrene granules Specify cement products that are suitably trained is that an easy working and inexpensive, material and energy saving system is achieved. The Wei teren should a density-related segregation regarding the troc components after the end of the manufacturing process largely prevented. It is supposed to be an economical end product which can be processed on site, whose Quality beyond that of conventional dry mixes going to be generated.

The task is ge by the features of claim 1 solves. In the system according to the preamble of the claim 1, the mixing device has an internal housing, of which Direction of rotation of the screw conveyor adjustable depending on the Mixture transport orbit on at least one Compression area and at least one return area has that with the discharge device that can be closed is connected, being in the compression area at least one with an increase, rotatably mounted Screw conveyor is present in at least one area steep paraxial trough-like and / or transverse axial dishes te, screw-spaced adapted compression wall such is assigned that when the screw conveyor rotates in the Compression area at the same time as the mixing process heating of the components due to friction and compression as well as a particle crumbling roll of binder adhesive coatings on the granulate particles.  

The plant for the production of dry granulate bandage medium products, especially of polystyrene granulate-cement Products essentially contain a mixing device a driven screw conveyor, one connected to it Discharge device with a subsequent filling unit, wherein at least one granulate and min a binder as components in dry form can be filled and mixed into a mixture.

In a first system, a first mixing device in the Essentially one with an angle α (preferably between 30 ° and 70 °) rising pipe - with a pipe back wall and a tubular belly wall facing the floor manure - and in it one from the riser pipe axis to the pipe abdominal wall facing, paraxially spaced and rotatable have mounted screw conveyor, with the lower area of the riser pipe with a cover that can be sealed Bulk dump arranged to hold the individual components with which the riser pipe can also be filled from below.

For this purpose, there is between the dump bed and the riser pipe a lower through opening. In the area of the upward gel The other end of the riser pipe, on the other hand, is an upper one Through opening with the connected ver lockable discharge device and the downstream one ten, preferably inclined downwards, preferably tubular filling unit available.

The associated filling unit contains one for the finished one Dry product provided, volume-adjustable intake advice container, the upper entrance opening with an upper Cover flap and its lower exit opening with an un teren bottom flap is provided, the lid flap and Bottom flap preferably in the center of the tube and related to the diameter  are pivotally mounted, which are in the storage container vertical axis at the same time as closures of the serve first receiving reservoir. The two flaps are preferably assigned to a linkage with which manually by means of at least one lever or two mutually independent hanging lever or automatically the flaps are adjustable.

The associated compression area consists of a first one spatial subarea that is delimited on the one hand by the Tube wall and on the other hand through to the tube belly wall dung directed eccentrically to the riser axis Screw conveyor, especially due to the smaller distance Area of the abdominal flank envelope is defined, and from a second sub-area, which is essentially by the storage area for the discharge device wall and for Dec kelklappe is formed when the discharge device is closed.

In the riser pipe is the belly-side distance between the belly flank envelope of the screw conveyor and the Flank enveloping opposite, associated pipe belly wall formed smaller than the rear distance between the rear flank envelope of the screw conveyor and the associated, opposite the flank envelope Pipe back wall.

The belly-side distance can preferably be a few centimeters be.

The freiräumi belonging to the mixture transport circuit The return area is inside the riser pipe through the size outer rear distance between the rear flank enveloping and the pipe back wall with the slope of the win kels α of the riser pipe above the screw conveyor.

In a second system, instead of the riser pipe second mixing device a closable, preferably  box-like container be present, the bottom one Has trough pan, parallel over which at a short distance arranged, directed in the longitudinal direction of the trough pan drivable screw conveyors are rotatably mounted, and one of the Discharge side opposite container wall as pressed Solution wall, with the Aus on the discharge side Carrier is attached by several tubs openings through preferably in connection with the mixing device.

Within the roughly box-shaped, transverse to the mixing device discharge device can be a discharge conveyor snail located across the parallel för derschnecken drivable rotatably and with the after orderly, preferably inclined downward inclined filling unit is connected.

Each of the screw conveyors is of a diameter outer, slightly spaced from the screw flanks Trough part-circle, preferably semi-circular underside encased, the heights of the semi-circular troughs from the trough bo the directed from preferably up to the height of the snail shaft len the screw conveyors are formed.

The associated troughs are interconnected by longitudinal webs connected, the trough composite on the housing walls of the Mixing device is attached.

The associated compression area consists of at least one trough between the in the area of the troughs tub introduced semi-tubular, parallel to each other troughs and the fore located at a short distance derschnecken, especially their flank areas as well at least one front part area, through a stowage area in front of the front end of the screw conveyor and in front of the  Discharge device opposite and across the conveyor worm shaft arranged container wall as pressing wall is formed.

The distance between the respective screw flanks and the semi-circular troughs spaced from the trough bottom is we a few centimeters and depends on the outer diameter of the conveyor derschnecken, by means of which are arranged parallel to one another ten screw conveyors underneath in the trough section in the Essentially the pressing and mixing and waves Mixing of the components above the semicircular depressions respectively.

The rotation speeds and the rotation are expedient directions of the driven screw conveyors are variable adjustable.

Both the mixing device and the filling unit can preferably have suction line connections that belong to pipelines to at least one of the dust that occurs mist extracting dust extraction system, with the lid closed according to the product manufacturer process or after filling the dry product before existing dust mist can be extracted in accordance with occupational safety.

The second mixing device, the discharge device and the Filling unit can be placed on a frame with a walk-in horizontal platform, the mixing device towards the horizontal platform at an inclination with one Gradient angle of preferably β <15 ° in the direction of the off support device can be arranged.  

The mixing device has a lid and a filling side Collecting sieve and is with during the component mixing process the lid tightly closed.

When mixing and pressing the components, part of the parallel screw conveyors according to their pressing direction of rotation switched ascending, which the com Component mixture at an angle β <15 ° increasing against that of the off support device opposite compression wall dust transported richly and there the granulate parties kel crunching accumulation compression. The return screw conveyor is in the opposite direction and provided with the return transport rotation direction in same angle β <15 °, the mixture of components on the slope with promoting the angle β <15 ° down, arranged, the accumulating, transported to their return area Mixture is detected, the waves below when transported back pressed in the semi-circular recess and still mixed becomes.

An assigned to the screw conveyor, parallel to the screw wave-level, vortex-like transport cycle is present when the screw conveyors are in the second Angle β of approximately 15 ° increasing axial pressing direction gene and the screw conveyor in the second angle β of about 15 ° falling axial return transport direction, the mixture accumulating on the container walls congestion can be reduced. Due to the predefined inclinations of the Mixing devices are intended for particle-specific compression reinforced and the repatriation easier.

The dosage of the components depends on the specified NEN composition of the dry product.  

The process for producing dry granule-binder products which solves the problem has the following steps:

• a) Filling at least one mixing device with the quantitative predetermined components,
• b) Mixing the components by means of rotation by mind at least one screw conveyor,
• c) pressing the mixture by at least one rotating Screw conveyor on at least one provided, low spaced compression wall,
• d) friction and compression-related heating up to one Minimum temperature of the mixture using at least one screw conveyor adjustable in speed and direction of rotation,
• e) Rolling of adhesive binder coverings onto the pressed heated crumpled particles and
• f) discharge of the dry product.

To achieve a quality product, a timely approach Repeated execution of the component distributing Mixing process, the compression associated with the particles and of the rolling which produces adhesive adhesive coverings.

After the end of the predetermined adhesive binder coating are in the second mixing device at the beginning of the off all screw conveyors with the return transport rotation switched in the same direction of rotation, so that the specified accumulated mixture jam from the container wall side pressing solution wall away to the now open discharge device conveyed in a directed manner and is fed to the filling unit there.

In the dry granule binder Product containing at least one granulate and at least one bandage contains medium in a predetermined mixing ratio and by means of the method and by means of one of the plants is, the particles of the granules point to their  Generate surface under an adjustable compression pressure te rolled adhesive binder coverings.

The invention prevents the generated on the particles Binding adhesive coverings a density-related segregation of the witnessed dry products in the two components as by the rolling of the hydrau caused by the compression pressure mical binder on the surface of the granulate particles at least an intimate adhesive bond between the binder and particles can be reached that detach the hydrauli the binder after the end of the mixing and Ab filling process and during the subsequent storage of the Troc largely prevented. A new qua arises lity of the component mixture in the form of the invention Dry product, with the binder coatings by the Auf Rolling pressure firmer and thicker than that on the powdered Particles are formed.

It is also said to focus on the use of aids, in particular of plastic adhesives as well as the elaborate heat acts and thus the manufacturing costs for one marketable granule binder product essential be reduced.

Advantageous embodiments of the invention are described in the following Subclaims described.

The invention is based on two exemplary embodiments explained in more detail by means of several drawings.

Show it:

Fig. 1 is a schematic representation of a first fiction, modern plant with a first mixing device and a screw conveyor in side view therein,

Fig. 2 is an enlarged cross-section through the first mixing device with eccentrically arranged Förderschnec ke in the cylindrical tubing along the line II in Fig. 1,

Fig. 3 is a schematic representation of a second system with a second mixing device having a plurality therein screw conveyor in side view,

Fig. 4 is a schematic representation of the second mixing unit and the second discharge means to transverse cross-section along the line II-II in Fig. 2,

Fig. 5 towards a schematic representation of the second Mischein and the associated second Austragseinrich tung in plan view along the line III-III in Fig. 3,

Fig. 6 is a schematic representation of a spherical Gra nulate particles with a loose accumulation of hy draulic binder prior to the particle crumbling rolling and

FIG. 7 shows a schematic illustration of the crumpled granulate particles with a rolled-on binder adhesive covering according to FIG. 5.

In Figs. 1 to 7, the reference numerals are retained for similar parts having the same functions.

In Figs. 1, 2, 9 is a first system 1 for preparing a dry granular binder product, shown in particular of a polystyrene granulate cement product 27 which Dersch corner, a first mixer 2 with a first driven För, a connected first Austragsein direction 3 with a subsequent first filling unit 4 , wherein in the first mixing device 2 two components - a granulate 5 and a binder 6 , in particular polystyrene granulate 5 and cement 6 - can be filled and mixed in dry form.

According to the invention, the first mixing device 2 has a housing-internal, depending on the direction of rotation of the screw conveyor 9 adjustable, preferably loop-like first mixing transport circuit 86 , which has a first compression area 89 and a counter-shaped first return area 90 , both with the first discharge device 3 , which can be closed, is connected, the first screw conveyor 9 being mounted in the first pressing area 89 and having a partially trough-like and at least partially partially spaced-apart belly-side first pressing wall 34 and a discharge side for Riser axis 38 preferably transversely directed second Verpressungswan extension 84 are assigned such that when the conveyor screw 9 rotates in the first compression region 89 simultaneously with the component-distributing mixing process, a friction and compression condition Long heating of the granulate particles 5 and the cement 6 and a particle-crumbling rolling of cement adhesive coverings 88 ( FIG. 7) onto the polystyrene particles 5 take place.

To the first mixing device 2 in Fig. 1 include a trough 10 and a screw conveyor 7 , in particular a screw conveyor, which consists essentially of the rising ascending he with a most angle α arranged cylindrical riser 8 and from the first screw conveyor 9 rotatably mounted therein. At the bottom of the single-screw conveyor 7 is arranged with a cover 28 tightly closed pouring trough 10 , in which an additional feed conveyor screw (not shown) can be installed inside, which feeds the components 5 , 6 of the screw conveyor 9 .

For this purpose, there is a lower through opening 12 to the riser pipe 8 between the dump bed 10 and the first screw conveyor 9 . In the area of the other end of the riser pipe 8 located above, there is an upper through opening 33 with the closable first discharge device 3 and then, preferably inclined obliquely to the bottom, a tube-like tube 1, assigned to the first filling unit 4 , for the finished first dry product 27 Discharge volume adjustable receptacle 13 , the upper inlet opening 14 is provided with an upper lid flap 15 and the lower outlet opening 16 is provided with a lower bottom flap 17 , the lid flap 15 and the bottom flap 17 are preferably pivotally mounted, which in the position perpendicular to the reservoir axis 11 simultaneously as Closures of the first storage container 13 can serve NEN. A linkage 19 is preferably assigned to the two flaps 15 , 17 , with which the flaps 15 , 17 can be closed or opened manually by means of a lever 18 or two independent levers or automatically. The first För derschnecke 9 is connected via a first drive shaft 21 to a first electric motor 20 .

The first system 1 preferably has a first frame 39 , to which the first electric motor 20 is also attached.

The first pressing area 89 consists of a spatial first partial area 891 , which is delimited by the tube wall serving as the first pressing wall 34 and by the screw conveyor 9 , in particular in the area of the flank envelope 23 , and from a second partial area 892 , which is essentially by the stowage area is formed in front of the discharge wall serving as the second compression wall 84 when the cover flap 15 is closed.

The first screw conveyor 9 , as shown in FIG. 2, is arranged eccentrically in the riser pipe 8 , ie the screw shaft 21 is rotatably spaced parallel to the riser pipe axis 38 so that the belly-side distance 22 between the flank-associated belly-side envelope 23 first screw conveyor 9 and the cylindrical first pressing wall 34 is smaller than the rear distance 24 between the flank-associated rear envelope 25 and the cylindrical tube rear wall 35 . The belly-side flank envelope 23 of the first screw conveyor 9 is located on the belly side, preferably only a few centimeters from the first pressing wall 35 , which represents an effective first partial area 891 of the pressing area 89 due to the short distance to the screw conveyor 9 . In contrast, the rear distance 24 is dimensioned much larger and represents the first return region 90 in the interior of the tube along the tube rear wall 35 , which is of a larger size and is designed as a free space.

The first system 1 works as follows:
The quantity-specified components - polystyrene granules 5 and cement 6 - are filled into the pouring trough 10 , which is provided with a sieve 52 which protects against foreign bodies and which can be sealed with the cover 28 . The polystyrene granules 5 and the cement 6 are poured through the lower through opening 12 and after filling the pouring trough 10 and the mixing device 2 during rotation from the inclined first screw conveyor 9 . In the first partial area 891 of the pressing area 89 , a screw pressure is exerted by the screw conveyor 9 in the mostly radial direction on the particles 5 being sensitive on the first pressing wall 34 , whereby heating and the existing pressing pressure contribute to rolling friction, static friction and sliding friction Reaching a predetermined temperature, on the other hand, a rolling of Ze ment 6 on the crumpling particles 5 can take place.

Along the pipe belly-side first sub-region 891 of he most Verpressungsbereiches 89 is conveyed obliquely upward in the storage area before the second Verpressungswandung 84, the compo nentenmischung. As a result of the closed upper lid flap 15 , discharge of the incident component mixture is prevented. It forms in the second part of the region 892 in front of the second pressing wall 84 an essentially screw-axially directed press build-up, whereby the screw conveyor 9 also exerts a pressing pressure on the mass of the particles, i.e. on the accumulating component mixture, which also leads to pressing , Friction, in particular static friction, sliding friction between the components with each other and the second compression wall 84 as well as for additional heating of the component mixture and, at the same time, for the rolling of cement coatings onto the heated particles. From the stowage area rolls heavily due to force and displaces at least a part of the still untreated, unpressed, only transported and the other treated, changed by pressing part of the component mixture within the first return area 90 between the rear flank envelope 25 and the pipe back wall 35 via the screw conveyor 9 away again in the direction of the pouring trough 10 and is thereby again captured by the conveyor screw 9 and repeated in the loop-type climb-fall-climb transport cycle of the first mixture transport circuit 86 at an angle α against the force of gravity, whereby the repetition and circulation time of the mixing and pressing process is adjustable depending on the filled quantities of components 5 , 6 and the speed of the screw conveyor 9 .

When the finished first dry product 27 is discharged, the upper lid flap 15 is opened when the bottom flap 17 is closed. The resulting first dry product 27 according to the invention is transported into the hollow cylindrical receptacle 13 . After reaching a defined fill level in the first receptacle 13 , after the upper lid flap 15 has been closed again, the bottom flap 17 can be opened and the predetermined amount of the first dry product 27 can be removed. After the upper lid flap 15 has been closed , the rolling process in the mixing device 2 can be carried out in the meantime. Conveniently, the first dry product 27 in package containers filled abge particular in paper bags 36th

In Figs. 3, 4 and 5, a second bearing 29 is provided with three För Dersch corners 41, 42, 43 to produce a second dry polystyrene granulate cement product 37 shown. The second system 29 , like the first system 1 , essentially consists of a second mixing device 30 , a connected second discharge device 31 and a downstream second filling unit 32 , wherein in the second mixing device 30 the two components - e.g. B. polystyrene granulate 5 and cement 6 - can be filled and mixed in the dry state.

The second mixing device 30 has a closable, preferably box-like container, in particular in the form of a trough pan 40 , above which at a short distance three pa rallel arranged, in the longitudinal direction of the trough pan 40 conveying screws 41 , 42 , 43 are rotatably mounted, which associated worm shafts 44 , 45 , 46 are driven by means of electromotors 47 , 48 , 49 .

The second mixing device 30 further contains a container wall opposite the discharge side 51 , which serves as the third pressing wall 50 . The third pressing wall 50 and the arranged electric motors 47 , 48 , 49 on the opposite side is preferably on the discharge side 51, the transversely arranged second discharge device 31 is introduced , which consistently through several trough openings 53 , 72 , 73 , 74 in connection with the second mixing device 30 stands. Within the approximately box-shaped, transverse two th discharge device 31 is a discharge screw 54 , which is rotatably mounted transversely to the three parallel conveyor screws 41 , 42 , 43 and is driven by a fifth electric motor 55 . The second discharge device 31 is connected to a downstream, preferably downwardly inclined, second filling unit 32, including the second holding reservoir 56, which is adjustable from the carrying volume, for receiving the second dry product 37 with the upper cover flap 15 and the spaced-apart bottom flap 17 , which are preferably connected via a linkage 19 can be connected to each other for actuation. At the lower area of the second receptacle 56 , the packaging containers 36 can be filled with the second dry product 37 in stock.

Preferably, both the second mixing device 30 and the second receptacle contain 56 suction line connections 57 , 58 , which via associated pipelines 59 , 60 lead to a dust extracting device / dust extraction system 61 that occurs. When the cover 68 is closed, the dust mist 37 present after the product manufacturing process or after the filling of the second dry product 37 is suctioned off in accordance with occupational safety.

The second mixing device 30 , the second discharge device 31 and the second filling unit 32 can be combined on a second frame 67 with a walkable platform 70 , the second mixing device 30 being arranged preferably horizontally at an angle with a second angle β <15 ° is. Due to the increase, which relates in particular to the trough bottoms 62 , 63 and the associated adapted För derschnecken 41 , 42 , the gravity should be used as a particle-acting compression resistance and for the return transport.

The second discharge device 31 is located at the lower point and is attached to the second mixing device 30 .

The second mixing device 30 has on the filling side a sealing cover 68 and a second collecting screen 69 . The second collecting screen 69 is located above the trough pan 40 . On the second collecting screen 69 , the components to be mixed 5 , 6 are poured, which fall into the trough 40 . Foreign objects can be caught in this way. A hand in hand into the second mixing device 30 is prevented by. During the component mixing process, the second mixing device 30 with the cover 68 is firmly closed ver. The second mixing device 30 has, within its housing 65, a second mixture transport circulation path 87 , which preferably runs parallel to the screw shafts 44 , 45 , 46 , which consists of a second pressing area 91 and a second return area 92 and we have belly-like structures during the rotation of the screw conveyors 41 , 42 , 43 in particular when the particles 5 have a crushing rolling process.

Each of the three screw conveyors 41 , 42 , 43 is for itself underside from a part-circle, preferably semicircle-like surrounding trough 62 , 63 , 64 slightly spaced, preferably lying in the centimeter range, enclosing the fourth, fifth and sixth compression walls of the trough sections 911 of the second pressing area 91 serve. The height of the semi-circular troughs 62 , 63 , 64 serving as compression walls is directed from the trough bottom 71 , preferably up to the height of the screw shafts 44 , 45 , 46 of the screw conveyors 41 , 42 , 43 . The troughs 62 , 63 , 64 are connected to one another via webs. The trough assembly is attached to the housing 65 .

The distance between the screw flanks and the compression wall semi-circular troughs 62 , 63 , 64 spaced from the trough bottom 71 can thus be a few centimeters and is dependent on the outer diameter of the screw conveyors 41 , 42 , 43 . By means of the three screw conveyors 41 , 42 , 43 arranged parallel to one another, the pressing and mixing takes place essentially underneath in the trough part areas 911 of the semi-circular troughs 62 , 63 , 64 and screw shaft above the semi-circular troughs 62 , 63 , 64 the components 5 , 6 are mixed .

In the case of the pressing process, the second pressing area 91 consists of at least one trough partial area 911 between the half-pipe-walled troughs 62 , 63 , 64 which are introduced into the area of the trough trough 40 and in which the screw conveyors 41 , 42 located at a short distance therefrom 43 and from at least one front part area 912 , which is formed by a stowage area between the respective end of the screw conveyors 41 , 42 and the opposite to the closed discharge device 31 and arranged transversely to the screw conveyor shafts 45 , 46 loading container wall, which serves as the third compression wall 50 .

The speeds of rotation and the directions of rotation 75 , 76 , 77 ; 78 , 79 of the För derschnecken 41 , 42 , 43 driven by the electric motors 47 , 48 , 49 can be set variably. The rotational speeds of the screw conveyors 41 , 42 , 43 can be adjusted during the pressing depending on the amount of the components 5 , 6 to be mixed in such a way that a slow "rolling" of the components 5 , 6 is generated. When mixing and pressing the components 5 , 6 in FIG. 4 two of the parallel screw conveyors 41 , 42 (the central screw conveyor 42 in connection with an external screw conveyor 41 ) are switched in ascending order according to their compression rotation directions 75 , 76 , which the component mixture at a second angle β <15 ° increasing against the second discharge device 31 opposite Verpressungswandung 50 transported jam-pressing and there carries out a crushing the particles 5 accumulation. The return area 92 essentially contains the third screw auger 43 located on the outside, which rotates in opposite directions and has a return transport rotation direction 77 with respect to the second angle β <15 ° on the downside, and detects the mixture accumulating on the third pressing wall 50 and pushed into its area , which is continuously transported to the low-lying area in the trough tub 40 . The mixture can also be pressed when it is transported back in the associated trough part region 911 and continues to mix components 5 , 6 directed downwards. Thus, in the manufacturing process, both a wave-vertical and a wave-plane-parallel, vortex-like transport cycle are achieved in the second mixture transport cycle section 87 . The screw conveyors 41 , 42 have the axial pressing directions 751 , 761 increasing in the second angle β of approximately 15 ° and the screw conveyor 43 has the axial return transport direction 771 falling in the second angle β of approximately 15 °.

After the end of the specified manufacturing process, who at the beginning of the discharge all three screw conveyors 41 , 42 , 43 with the return transport rotation directions 77 , 78 , 79 connected in the same direction of rotation with respect to the wave gradient, so that the accumulated press build-up from the third pressing wall 50 away to the second Discharge device 31 is conveyed in a direction where it is fed to the second filling unit 32 .

The second discharge device 31 is arranged transversely on the discharge side 51 of the trough pan 40 opposite the third compression wall 50 . The associated discharge conveyor screw 54 is located in a secondary housing 66 , the z. B. with the discharge-side tub openings 53 , 72 , 73 , 74 to Mul denwanne 40 is provided. The driven discharge screw conveyor 54 supports the discharge of the second dry product 37 out of the second mixing device 30 into the filling unit 32 . The second discharge device 31 is only put into operation when a transition from an initial component-distributing component mixture to a second dry product 37 containing particles of binder adhesive has occurred and no segregation is recognizable.

By means of an adjustable flap linkage control, the second dry product 37 can be removed from the second storage container 56 of the associated filling unit 32 , but defined filling dimensions can also be set up.

In a permanent manufacturing process, the mixing devices 2 , 30 , in particular the trough pan 40, the dry components 5 , 6 can also be fed mechanically and pneumatically from associated, surrounding component storage silos via an adjustable control. The filling can e.g. B. on the discharge side 51 opposite third compression wall 50 .

The dosage of components 5 , 6 depends on the specified composition of the end product to be realized, the second dry product 37 . Instead of a polystyrene granulate from an initial production process, it is also possible to use granulate from recycled rigid polystyrene foam, which in the final phase of the production reveals no difference in the quality of the dry products according to the invention.

Another possibility is two mixing devices parallel with trough trays or in a piggyback other to set up. Will the associated component mix in addition to the vertical wall movement caused by the axial movement in the direction of the discharge device transported, the associated component mixture gets into the downstream trough. The product manufacturing process will continued there. On the border to the second discharge The direction is essentially the component distribution The mixing process ends and the particles are assigned there nete congestion and rolling, both processes can also overlay in parallel.

The mixing devices according to the invention differ of known mixing containers in that a con trolled pressing process by one with a counter transport phase of the component mi is feasible.

The process steps according to the invention for producing the granule-binder dry product are explained below with reference to FIGS. 3, 4, 5:

• 1. Filling the second mixing device 30 with the components 5 , 6 ,
• 2. Implementation of the component-distributing mixture and compression of the two components 5 , 6 assigned to the particles,
• 3. Setting the speed and directions of rotation 75 , 76 , 77 ; 78 , 79 of the screw conveyors 41 , 42 , 43 in such a way that the component mixture heats up due to the frictional conditions in the semicircular depressions 62 , 63 , 64 and on the third pressing wall 50 ,
• 4. Rolling on the dry hydraulic binder 6 at least onto the edge region heated due to the compression zones of the crumpled surface of the granulate particles 5 and converting the component mixture into the second dry product 37 ,
• 5. discharge of the second dry product 37 .

It can preferably be used as a particle component regranulated polystyrene rigid foam for the production of the second dry products 37 . The individual components 5 , 6 , in particular the regranulated polystyrene hard foam 5 and the hydraulic binder 6 are filled into the second mixing device 30 via the second collecting sieve 69 . When the second mixing device 30 is closed, the component-distributing mixing process is carried out.

In this case, the parallel arranged, same-flow and the opposite-flow / same-flow switchable screw conveyors 41 , 42 , 43 mix the components 5 , 6 in the usual way, the screw conveyors 41 , 42 , 43 bringing about the force-fitting particle-associated connections of components 5 , 6 as follows :
The mixed or the mixing components 5 , 6 are conveyed by the uniform movement of the discharge screws 41 , 42 and the discharge screw 43 in the same direction to the bottom of the semicircular troughs 62 , 63 , 64 in such a way that a short-term mechanical compression in peripheral areas the particles 5 with simultaneous friction of the components 5 , 6 in the trough area to each other.

The components 5 , 6 get through the rotary movement of the För derschnecken 41 , 42 , 43 back to the surface of the component ten mixture and from then on by the rotation of the screws again for pressing in conjunction with friction to the semicircular trough bottom. The process can be repeated several times via a connected control device or via a time control. In addition to the vertical movement of the component mixture against the compression wall, a simultaneous, axially directed movement of the component mixture takes place, as shown in FIGS . 4, 5.

As shown in Fig. 6, 7 schematically abstract, it comes z. B. in the corner region of the third pressing wall 50 and the first semi-circular recess 62 by superficial pressing of the fixed particle 80 by means of the second screw conveyor 41 in the pressing rotation direction 76 ( FIG. 4) in pressing direction 85 with the screw-adhering hydraulic binder zone 83 for rolling up part of the particles around hydraulic binders giving and surrounding screws, zones 82 , 83 on the particle 80 . Due to the particles, crushing compression of the edge area zones 81 in connection with the mechanical friction in the area of the two binding agent zones 82 , 83 to one another leads briefly and selectively to heating with a transition to an obviously sticky state in the crumpled edge area zone 81 of the particle 80 .

The state of the flow behavior (plastic state) is briefly achieved in such a way that part of the hydraulic binder zones 82 , 83 can bind to the particle 80 to form a binder adhesive coating 88 . Adhesive forces, in particular intermolecular attractive forces, can occur in interaction with chemical binding forces between the edge region zone 81 and the hydraulic binder 6 . How the exact connection exists between the surface 81 of the particles 5 , 80 and the binder 6 in the binder adhesive coating 88 should not be the subject of the invention.

After pressing against one another and the accompanying friction of the binder zones 82 , 83 present in the edge region zones 81 , the further transport ensures that the particles with the resulting connections or coverings 88 are led out of the press jam, then cooled and cured stably. This is achieved in that the particles 80 with the superficial binder coatings 88 are conveyed again by the screw conveyors 41 , 42 , 43 to the surface of the component mixture, where the particles 5 can cool briefly. The temperature of the heated mixture is below the temperature that is brought about by the short-term pressing and leads to the flow behavior of the particle surface.

Since the pressing process is repeated several times, a large number of adhesive coatings 88 of the hydraulic binder 6 can be firmly attached to the surface of the particles 80 . The dry product 27 , 37 according to the invention is made from the component-distributed mixture by the pressing.

By synchronizing the screw conveyors 41 , 42 with respect to the directions of rotation 78 , 79 with the return rotation direction 77 of the third screw conveyor 43 , the discharge can be carried out via the second discharge device 31 . The finished drying product 37 is removed via the second filling unit 32 and can be fractionated.

The invention thus opens up the possibility of largely preventing the disruptive segregation into the individual components 5 , 6 in such a way that the dry products 27 , 37 each represent a ready-to-use finished product. Long-term storage, robust transport and economical processing of the dry products 27 , 37 are thus also immediately possible on site.

The expedient structure of the systems 1 , 29 with the mixing devices 2 , 30 makes it possible for components 5 , 6 mixed by at least one of the screw conveyors to be roughly evenly distributed by the screw conveyors and guided against at least one of the container walls of the mixing devices in such a way that as a result of the compression of the edge region zones 81 of the granulate particles 5 , 80, the dry binder 6 , 82 , 83 is rolled onto the surfaces of the soft, air-containing granulate particles 5 , 80 to form a firmly held binder 88 .

Furthermore, the systems 1 , 29 according to the invention are simple to manufacture and to set up.

With the dry products 27 , 37 according to the invention, the economic effort involved in processing them is also reduced, with a reduction in working hours, better handling and a reduction in the amount of stock.

Reference list

1

first plant

2

first mixing device

3rd

first discharge device

4

first filling unit

5

first component

6

second component

7

Screw conveyor

8th

Riser pipe

9

first screw conveyor

10th

Dump bed

11

Filling container axis

12th

lower through opening

13

first storage container

14

upper entrance opening

15

upper lid flap

16

lower exit opening

17th

lower bottom flap

18th

lever

19th

Linkage

20th

first electric motor

21

drive shaft

22

belly-side distance

23

abdominal envelope

24th

back clearance

25th

back flank envelope

26

Return direction

27

first dry product

28

cover

29

second plant

30th

second mixing device

31

second discharge device

32

second filling unit

33

upper through opening

34

Pipe belly wall

35

back first compression wall

36

Packaging container

37

second dry product

38

Riser axis

39

first frame

40

Trough tub

41

second screw conveyor

42

third screw conveyor

43

fourth screw conveyor

44

first worm shaft

45

second worm shaft

46

third worm shaft

47

second electric motor

48

third electric motor

49

fourth electric motor

50

third grouting wall

51

Discharge side

52

first collecting sieve

53

first tub opening

54

Discharge screw conveyor

55

fifth electric motor

56

second storage container

57

first suction line connection

58

second suction line connection

59

first pipeline

60

second pipeline

61

Suction device

62

first semi-circular recess

63

second semi-circular recess

64

third semicircular depression

65

casing

66

Secondary housing

67

second frame

68

cover

69

second collecting sieve

70

platform

71

Hollow floor

72

second tub opening

73

third tub opening

74

fourth tub opening

75

Direction of compression rotation

751

axial direction of compression

76

Direction of compression rotation

761

axial direction of compression

77

first return rotation direction

771

axial return transport direction

78

second return transport rotation direction

79

third return rotation direction

80

particle

81

Border zone

82

first binder zone

83

second binder zone

84

second grouting wall

85

pressing direction of rotation

86

first mixed transport circuit

87

second mixture transport circuit

88

Binder adhesive coating

89

first pressing area

891

first section

892

second section

90

first return area

91

second pressing area

911

Trough sections

912

Front section

92

second return area
α first rise angle of the first mixing device
β second rise angle of the second mixing device

Claims (26)

1. Plant for the production of dry granulate binder medium products, in particular polystyrene granulate cement products, containing a mixing device with a driven screw conveyor, a connected discharge device with a subsequent filling unit, with components - at least one in the mixing device Granules and at least one binder - can be filled in dry form and mixed into a mixture, characterized in that the mixing device ( 2 , 30 ) has an internal housing, from the direction of rotation ( 85 ; 75 , 76 , 77 ) of the screw conveyor ( 9 ; 41 , 42 , 43 ) depending on the adjustable mixture transport circulation route ( 86 , 87 ), which has at least one pressing area ( 89 , 891 , 892 ; 91 , 911 , 912 ) and at least one return area ( 90 ; 92 ), which with the From the support device ( 3 , 61 ), which can be closed, is connected, in the compression area ( 89 , 891 , 892 ; 91 , 91 1 , 912 ) at least one, rotatable conveyor screw ( 9 ; 41 , 42 , 43 ) is present which is assigned to at least one compression wall ( 34 , 84 ; 62 , 63 , 50 ) which is at least partially partially paraxial trough-like and / or transversely oriented, screw-spaced and adapted in such a way that when the conveyor screw ( 9 ; 41 , 42 ) in the pressing area ( 89 , 891 , 892 ; 91 , 911 , 912 ) simultaneously with the mixing process a friction and compression-related heating of the components ( 5 , 6 ) as well as a particle-crumbling rolling of adhesive adhesive coatings ( 88 ) onto the Granulate particles ( 5 ; 80 ) takes place. 2. Plant according to claim 1, characterized in that the mixing device ( 2 ) is essentially a rising pipe ( 8 ) arranged with an angle (α) - with a pipe rear wall ( 35 ) and a pipe belly wall ( 34 ) - and therein one of the riser shaft ( 38 ) from the pipe belly wall ( 34 ) directed, paraxially spaced and rotatably mounted screw conveyor ( 9 ), wherein at the lower region of the riser pipe ( 8 ) with a cover ( 28 ) tightly closable pouring trough ( 10 ) for opening Taking the individual components ( 5 , 6 ) is arranged. 3. Plant according to claim 2, characterized in that between the pouring trough ( 10 ) and the riser pipe ( 8 ) has a lower through opening ( 12 ) and in the region of the other end of the riser pipe ( 8 ) located above, an upper through opening ( 33 ) From the connected From device ( 3 ) and the downstream, preferably inclined downwards inclined filling unit ( 4 ). 4. Plant according to claim 3, characterized in that the filling unit ( 4 ) contains a volume-adjustable receptacle ( 13 ) for the finished dry product ( 27 ), the upper inlet opening ( 14 ) with an upper lid flap ( 15 ) and the lower outlet opening ( 16 ) is provided with a lower bottom flap ( 17 ), where the lid flap ( 15 ) and the bottom flap ( 17 ) are designed to be swivel-mounted, preferably in relation to the diameter of the tube, which, in the position perpendicular to the reservoir axis ( 11 ), simultaneously serve as closures of the first storage container ( 13 ) serve and the two flaps ( 15 , 17 ) are preferably assigned a linkage ( 19 ) with which the flaps ( 15 , 17 ) can be adjusted manually by means of a lever ( 18 ) or two mutually independent levers or automatically. 5. Plant according to at least one of the preceding claims, characterized in that the pressing area ( 89 ) from a first spatial sub-area ( 891 ), which is delimited on the one hand by the tube wall ( 34 ) and on the other hand by the tube wall ( 34 ) directed eccentrically to the rising pipe axis ( 38 ) arranged screw conveyor ( 9 ), in particular in the slightly spaced area of the belly-side flank envelope ( 23 ), and from a second section ( 892 ), which is essentially through the front area to the discharge device wall ( 84 ) and to the lid flap ( 15 ) is formed when the discharge device ( 3 ) is closed. 6. Plant according to claim 5, characterized in that in the riser pipe ( 8 ) the belly-side distance ( 22 ) between the belly-side flank envelope ( 23 ) of the conveyor screw ( 9 ) and the flank envelope ( 23 ) opposite, associated tubular wall ( 34 ) is smaller than the rear distance ( 24 ) between the rear flank envelope ( 25 ) of the screw conveyor ( 9 ) and the associated tube back wall ( 35 ) opposite the flank envelope. 7. Plant according to claim 6, characterized in that the belly-side distance ( 22 ) is preferably a few centimeters. 8. System according to claim 7, characterized in that the return area ( 90 ) having a slope (-α) in the interior of the riser pipe by the larger, free-space distance ( 24 ) between the rear flank envelope ( 25 ) and the pipe back wall ( 35 ) over the screw conveyor ( 9 ) is specified. 9. Plant according to claim 1, characterized in that the mixing device ( 30 ) is a closable, preferably box-like container, preferably a trough pan ( 40 ), above which is provided at a short distance and with a rise (β), arranged in parallel Drivable screw conveyors ( 41 , 42 , 43 ) directed in the longitudinal direction of the trough pan ( 40 ) are rotatably mounted and have a container wall opposite the discharge side ( 51 ) as a compression wall ( 50 ), with the discharge, preferably arranged transversely, on the discharge side ( 51 ) device ( 31 ) is attached, which is continuously connected to the mixing device ( 30 ) through a plurality of trough openings ( 53 , 72 , 73 , 74 ). 10. Plant according to claim 9, characterized in that a discharge screw conveyor ( 54 ) is located inside the discharge device ( 31 ), which is rotatably mounted transversely to the screw conveyors ( 41 , 42 , 43 ) arranged in parallel and is rotatably mounted with the downstream, Preferably, downward inclined filling unit ( 32 ) is connected, in which there is a volume-adjustable receptacle ( 56 ) for receiving and subsequent filling of the dry product ( 37 ). 11. Plant according to claim 9 and 10, characterized in that each of the screw conveyors ( 41 , 42 , 43 ) is encased in part-circle, preferably semicircular, manner by a respective larger-diameter, slightly spaced trough ( 62 , 63 , 64 ), the heights of the semicircular troughs ( 62 , 63 , 64 ) from the trough bottom ( 71 ), preferably up to the height of the screw shafts ( 44 , 45 , 46 ) of the screw conveyors ( 41 , 42 , 43 ). 12. Plant according to claim 11, characterized in that the troughs ( 62 , 63 , 64 ) are interconnected in the intermediate spaces ( 41-42 , 42-43 ) between the screw conveyors ( 41 , 42 , 43 ) and connected to the housing ( 65 ) are attached. 13. Plant according to at least one of claims 9 to 12, characterized in that the pressing area ( 91 ) corresponding to the number of screw conveyors ( 41 , 42 , 43 ) introduced from at least a first trough partial area ( 911 ) between the in the area of Trough tray ( 40 ) introduced semi-tubular walled, parallel troughs ( 62 , 63 , 64 ) and the closely spaced conveyor screws ( 41 , 42 , 43 ) and from at least a second front section ( 912 ), which is separated by a storage area between the front end of the screw conveyor ( 41 , 42 ) and the discharge device ( 31 ) opposite and transverse to the screw conveyor shafts ( 44 , 45 ) arranged container wall ( 50 ) is formed as a compression wall. 14. Plant according to claim 13, characterized in that the distance of the screw flanks to the semicircular troughs ( 62 , 63 , 64 ) spaced from the trough bottom ( 71 ) is a few centimeters and is dependent on the outer diameter of the screw conveyors ( 41 , 42 , 43 ), whereby, by means of the screw conveyors ( 41 , 42 , 43 ) arranged parallel to one another, essentially the compression and the mixing underneath in the area of the semicircular troughs ( 62 , 63 , 64 ) and mixing above the semicircular troughs ( 62 , 63 , 64 ) a mixing of the components ( 5 , 6 ). 15. Plant according to claim 14, characterized in that the rotational speed and the direction of rotation ( 75 , 76 , 77 ; 78 , 79 ) of the driven screw conveyors ( 41 , 42 , 43 ) is variably adjustable. 16. Plant according to claim 9 to 15, characterized in that the return area ( 92 ) essentially includes the external third screw conveyor ( 43 ) and its surroundings, the screw conveyor ( 43 ) running in the opposite direction to the pressing screw conveyor ( 41 , 42 ). rotating and a return transport rotation direction ( 77 ) with respect to the second angle β <15 ° is arranged on the downward side and the mixture accumulating on the third compression wall 50 is moved into its area and continuously transported to the deep area in the trough pan 40 . 17. Plant according to claim 9 to 16, characterized in that both the mixing device ( 30 ) and the filling unit ( 32 ) preferably have suction line connections ( 57 , 58 ), which via associated pipes ( 59 , 60 ) to the dust mist that occurs lead suction extraction / dedusting system ( 61 ), the dust mist present after the product manufacturing process or after the filling of the dry product ( 37 ) with the cover ( 68 ) closed, can be suctioned off in accordance with occupational safety. 18. Plant according to claim 9 to 17, characterized in that the mixing device ( 30 ), the discharge device ( 31 ) and the filling unit ( 32 ) are placed on a frame ( 67 ) with a preferably accessible horizontal platform ( 70 ), the Mixing device ( 30 ) to the horizontal platform is arranged at an incline with a gradient angle of preferably β <15 ° in the direction of the discharge device ( 31 ). 19. Plant according to claim 9 to 18, characterized in that the mixing device ( 30 ) on the filling side has a lid ( 68 ) and a collecting sieve ( 69 ) and is sealed and firmly closed during the component mixing process with the lid ( 68 ). 20. Plant according to at least one of the preceding claims 9 to 19, characterized in that when mixing and pressing the components ( 5 , 6 ) part of the parallel screw conveyors ( 41 , 42 ) corresponding to their compression rotation directions ( 75 , 76 ) mounted rising which transport the mixture of components increasing at an angle β <15 ° against the compression wall ( 50 ) opposite the discharge device ( 31 ), producing rich dust, and there perform an accumulation compression that crumbles the granulate particles ( 5 , 80 ), and the return area ( 92 ) assigned conveying screws ( 43 ) in opposite directions and with the return transport direction ( 77 ) related at the same angle β <15 °, the component mixture on the downward slope with the angle β <15 ° is conveyed, with the screw conveyor essentially intended for return transport ( 43 ) the accumulating from the front part area ( 912 ) over-conveyed mixture recorded. 21. Plant according to claim 9 to 20, characterized in that both the conveyor screws ( 41 , 42 , 43 ) associated ter parallel to the screw shaft plane, vortex-like transport circuit ( 86 ) can be achieved in which the conveyor screws ( 41 , 42 ) The axial pressing directions ( 751 , 761 ) rising in the second angle β of approx. 15 ° and the screw conveyor ( 43 ) have the axial return transport direction ( 771 ) falling in the second angle β of approx. 15 °, the respective directions on the container walls ( 50 , 51 ) accumulating mix congestion. 22. Plant according to claim 1, characterized in that the dosage of the components ( 5 , 6 ) depends on the predetermined composition of the dry product ( 27 , 37 ). 23. Process for the production of dry granule-binder products ( 27 , 37 )

• a) filling at least one mixing device ( 2 , 30 ) with the components ( 5 , 6 ) specified in terms of quantity,
• b) Mixing of the components ( 5 , 6 ) by means of rotation by at least one screw conveyor ( 9 ; 41 , 42 , 43 ) and discharge of the product, characterized by the following steps:
• c) pressing the mixture by at least one rotating screw conveyor on at least one slightly spaced pressing wall ( 35 , 84 ; 62 , 63 , 64 , 50 ),
• d) heating caused by friction and compression up to a minimum temperature of the mixture by means of a screw conveyor ( 9 ; 41 , 42 , 43 ) set in terms of speed and direction of rotation,
• e) Rolling of adhesive binder coverings ( 88 ) onto the compressed, warped, crushed particles ( 5 ; 80 ).

24. The method for producing according to claim 23, characterized in that a time-predetermined repeated execution of the component-distributing mixing process, the particle ( 5 ; 80 ) associated compression and the binder-adhesive coverings ( 88 ) generating rolling takes place. 25. The method according to at least one of the preceding claims, characterized in that after the end of the predetermined generation of binder adhesion at the beginning of the discharge, all screw conveyors ( 41 , 42 , 43 ) with the return transport rotation directions ( 77 , 78 , 79 ) are switched in the same direction of rotation, that the accumulated press build-up is also reduced. 26. Dry granule-binder product ( 27 , 37 ) containing at least one granulate ( 5 ) and at least one binder ( 6 ) in a predetermined mixing ratio and Herge provides by means of the method and by means of the systems ( 1 ; 29 ) according to the claims 1 to 25, characterized in that the granulate particles ( 5 , 80 ) have binder adhesive coatings ( 88 ) rolled on their surface under an adjustable compression pressure.