DE8111834U1 - DRY FILLING OR CONCRETE PREPARATION SYSTEM IN CONTAINER DESIGN - Google Patents

Description

Dry filling or concrete preparation plant in container construction "

The invention is concerned with the construction of a ready-to-use structural unit, the aggregates for dosing aggregates, cement, water, admixtures, mixing these substances and controlling them Aggregates into a transportable and easily relocatable, ready-to-use pre-assembled container unit. In principle, the container unit is can also be used for dry filling stations.

It can be used with tower systems as well as in connection with Sternoder In-line silo landfill.

The basic structure allows a factory production of the core cell a high-performance concrete preparation plant, including operational control. The transport and, above all, the assembly on the construction site are shortened and simplified, d. H. cheaper.

The use of a special mixing system is not a prerequisite for the construction, but flat pan mixers are preferably used.

Since the transport is a limitation in width and height, an upper limit is seen in the output size at approx. 150 m ³ / h.

In the case of the known batch-wise horizontal systems with star distributors or in-line dosing systems with a capacity between 20 and 100 m ³ / h, it is known and customary to combine the following sub-systems into a preassembled unit:

the mixer of any construction principle, the cement and water metering, possibly with admixture metering the compressed air system for the dosing closures the electrical control of the entire system

The dosing of the additives is carried out separately from the at ground level

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Unit. The connection between the aggregate dosing and the mixing station is created by an inclined elevator or a conveyor belt. It cannot be pre-assembled and the operation can be checked by simulation. The implementation of such a constructed concrete preparation plant requires high expenditure of time, apart from the fact that parts often become unusable or get lost after they have been dismantled.

When connecting the aggregate dosing with the pre-assembled unit, which contains 2 mixers, by elevator, is the material distribution laborious. Because of the lower inertia forces at the upper delivery point, the high-belt conveying is favored over the high-feeder box conveying.

In the case of high-performance tower systems = 50 m ³ / h, two-story construction has always been used up to now, ie the weighing platform was arranged under the metering closures that were part of the silo body. This consisted of a frame that held the weighing device for aggregates, cement and possibly water and was installed in the support structure of the tower separately from the mixer platform below.
This stage had to be reached via stairs or a ladder.

The mixer stage in turn consisted of a frame that the or the Mixer carried.

The electrical control was in its own, apart from these Operating platform arranged on the stage housed.

The sub-devices were transported individually and included on the construction site Cranes installed one after the other in the steel structure of the tower.

A large number of dependencies had to be taken into account.

The crane costs were high. The electrical and pneumatic installation need a lot of time in the unfavorable working conditions.

Fall protection devices were necessary, as well as their attachment and removal Caused high costs, apart from the fact that the installation of the weather protection or the coloring of a scaffolding set up outside had to be used as an aid.

The weighing control with the necessary application of the test weights were another difficulty in the construction site assembly.

There have also been offered units that have a mixer, Weighing device for aggregates and cement as well as water combined. The electrical control was not integrated (Pfister Carip).

Tower systems were also built in France for capacities of up to 50 m ³ with a mixer of the order of 1500/1000 liters. including the electrical control (Fourray, Patoud). Parts of the weighing device had to be dismantled for transport and the dosing closures for the additives or the dosing devices for the cement dosing were not included.

A structural unit was also known in which, in order to save height, the The mixing container is also the weighing container. This solution has the disadvantage that the output is reduced to approx. 50% of that with predosing sinks.

It was found that with a structure according to the invention, the structural unit Approx. 20% of the total costs can be saved compared to previous solutions. Transport containers for the individual devices are not required. The job performance the number of employees is about twice as high in the factory assembly as in the Building site. The assembly times are shortened. Repair and rework costs are reduced. It also shows that the transport preparations simplified, the loading times reduced and the means of transport can be used to full capacity.

The object of the invention is to create a structural unit whose Limitation is less than 4 m in width and less than 3.7 m in height, whereby the complete dosing system and weighing device for aggregates, cement, Water, additives, the material distribution in 2 mixers, for example, and the electrical control of the entire system installed ready-to-use in the factory are functionally testable and this unit is integrally transportable.

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It should be possible to install either 1 or 2 compulsory mixers of any mixing system. Flat pan mixers are preferably used with system outputs = 50 m ³ / h.

This container construction solution should contain all the functionally important parts of a Include a concrete preparation plant in a tower construction, so that outside only the high material conveyance into the silo, possibly also the cement storage and feed is arranged in the weighing container. An integral tower solution, however, provides that the cement in the same overbuilt, cylindrical or rectangular. Silo stored and over Cell wheel rollers are dosed into the cement weighing container. This makes parts for the substructure, steps and / or maintenance care for the previously usual screw conveyors as well as the transport and assembly costs of these parts are further reduced.

The container assembly consists of a base frame that the or the Compulsory mixer and the operator's platform on the front.

The mixer frame can form the lower limit of the container or it can be higher such that z. B. ring trough mixer to be hung on it.

The upper limit of the container is formed by support profiles, which carry the weighing device or preferably a cover plate with the metering closures for aggregates or cellular wheel rollers for cement.

Is the container unit with the dosing devices on the silo construction attached, nothing additional is required between the silo and the container unit in terms of weather protection.

The upper cross members as part of the weigh bin suspension are at the same time designed and dimensioned so that they serve as a suspension for a hoist with which a mixer, e.g. for general repairs, can be lowered

The steering position is more familiar than the rest of the container unit Separated way, protected from dust and noise, and arranged so that through

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a transparent wall of the spout area of the mixer and the whole Mixer stage is visible.

The display heads of the weighing device or metering devices are known They can be read through the partition wall or they are / for example moved into the control station as manually adjustable display heads.

Appropriately, the direction under the concrete preparation plant is parallel to the main stretch. The cement is conveyed _v üer auger from said one wide side, or Zellenradwalzen directly above. In the case of a feeder or hoop conveyor, the aggregates come from the other broad side.

The container unit is normally on the reinforcement profiles of the Tower silo support structure or it can be attached to the silo cone or the connection node the 4 supports or hung directly on the silo itself and secured against the silo supports on the lower base frame.

A modified version provides that for factory assembly and transport The control cabin is at the same height as the machine side, but this control cabin is lowered approx. 1m after assembly. This turns the perspective into Transfer to the mixer truck improved.

In many markets there may be insufficient electrical drive power to provide. It must be handed over dry in the concrete mixer will. In such cases, the height between the container base frame and the dosing closure plate is used to accommodate larger dosing units for aggregates and paving cement. A later conversion to forced mixer operation is then given.

In order to make the machine room clear, transparent and simple, there is no ventilation filter on the mixers and the cement scales. According to the invention a vent line is laid up from the mixer container (s) into the center of the aggregate weighing container so that the Abluftstrdü is directed to the outlet of the weighing container. Also the cement weighing bin is connected to the mixer vent.

Such a container block can also be used in the same way with a Usual floor storage of aggregates and elevator or high-rise construction.

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ISn to reduce the efficiency of the high conveyor, d. H. to extend the delivery time of the aggregates dosed below in order to reduce the drive power, itaiß above the mixer or mixers a collecting container must be available.

According to the invention, this collecting container is the weighing container without a weighing device.

Another feature of the invention can be seen in the fact that the discharge funnel of the compulsory mixer or the outlet opening of the mixing container or containers is so that the mass of the flowing concrete is below Taking into account the parabola through the axis of the lower cylindrical outlet area of the transfer funnel moves, the walls of the So touched the container as little as possible and thus the wear is largely reduced.

The following figures show exemplary embodiments of the subject matter of the invention, namely:

Fig. 1 and 2 training and the installation of the container unit in a Tower system with round silo, installed upright, in side view and top view, base frame and auxiliary platform on top

Fig. 3 and 4 training and the installation of the container unit in a Tower system with rectangular silo, suspended, in side view and top view

Fig. 5 training and installation of the container unit with the bottom Base frame and auxiliary platform

Fig. 6 training and installation of the container unit with two-way mixer

Fig. 7 Container unit like Fig. 6, but with a suspended one Control cabin

Fig. 8 Container unit like Fig. 5, but with a suspended control cabin

Fig. 9 Container unit with raised dosing closures

Fig. 10 Arrangement of the water metering by spirit level in the Container unit

Fig. 11 Arrangement of water metering by water meter in the Container unit

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Fig. 12 Design of the container unit as a dry filling station in side view

Fig. 13/14 Formation of the mixer and cement scales ventilation Fig. 15/16 Combination of the container unit with a row dosing system

in side view and top view
Fig. 17 Combination with star metering system

Functionally equivalent parts are labeled the same in all illustrations.

The support frame 16 of the container unit is high in FIG. 1, the pan mixers 9 are attached at the bottom, the top edge of the frame is also part of the accessible mixer platform 18. The mixer drives 10 protrude into the interior and are therefore accessible from the mixer platform. Supports are arranged on the support frame 16 and carry the upper cover plate 3 with the dosing devices 4. The weighing device 1 for aggregates, cement 2 and water 13 is suspended from the upper frame support structure, the display heads 15 being located within the control room or in the machine room. The weighing container 1 is provided with flat slides 7 and the aggregates are distributed into both pan mixers via the distributor chutes 8. The cement is distributed in the same way. The spirit level 13 is expediently arranged in an elevated position on the side of the control panel so that the passage over the steps 17 and the viewing angle y is free.

The container unit stands on the transverse profiles 24 of the support structure on. The tight connection between the cover plate at the top 20 and the aggregate silo 51 is achieved by adjustable profiles 45.

The discharge funnel 34 of the two mixers 9 is shaped so that the material flow hits in the middle of the lower release opening according to the parabola, i.e. does not slide along the funnel wall.

The structural unit is according to Fig. 3/4 on the support lugs 26, which are connected are attached to the aggregate silo 51 with the lower conical reinforcement ring 27 hanged. The load is therefore suspended from the silo and further locking can be provided in the area of the lower edge by means of securing brackets 28.

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The overbuilt, rectangular silo body 29 consists of 2 prefabricated Halves that are bolted transversely in the parting plane 43. This means that the entire concrete preparation plant or dry filling station is in 3 Container components transportable.

In the case of the container unit according to FIG. 5, there is the difference from FIG. 1 = and 3 in that the main support frame 16 forms the lowest limit and the mixer 9 rest on it. A mixer platform 18 is required on the upper edge of the mixer.

In Fig. 6 it can be seen how the discharge funnel 34 of the mixer 9 in such a way is offset that the flow of material leaves the center of the round lower part of the hopper.

In a modified embodiment of the container unit according to FIG. 9 the dosing closures 4 are pneumatically pre-assembled in the weighing container 1, transported for example on an intermediate frame and brought up to the storage silo 51 for connection during assembly.

In order to improve the view of the concrete handover, it is provided according to the invention the control cabin 41 after assembly according to FIGS. 7 and 8 by a dimension C. by approx. 1 m. This is done by the fact that the main frame parts the separation point separated by known means, provided with a guide and screwed.

As with as few diversions as possible from an expediently ascending side Support 30, the fresh water supply line 11 and the lines 47 of the additives to the container unit and guided along the partition 48 is shown in Figs. This is how the lines are Protected, easily accessible and the metering and measuring display is in the operator's field of vision.

A large part of all lines remains with water meter dosing and Weighing water in the same way.

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In the case of dry filling stations in tower designs, according to FIG. 12, the Weighing container 1 for aggregates and cement 2 about the whole Construction height I of the structural unit. The large capacity of the weighing units makes high performance possible *

Since vent filters for high throughput lines have a large volume, but these cannot be accommodated in such a container unit ^: without impairing the clarity, it is proposed according to the invention to connect the mixing troughs 9 and weighing container 1/2 to one another by a large vent line 49, FIG. 13/14.

The displaced at the moment of shooting the material to be mixed into a mixer 9 Air is in the weigh bin, which is empty at the same time the aggregates led. This container is connected to the pipeline so that pressure equalization also occurs in the weighing container for the cement 2

An elastic end apron 50 between the silo body 51 and weighing container prevents cement dust from escaping.

The one discharged from the mixer and deposited on the container wall Cement dust is scraped off and carried away by the subsequent sand / gravel filling.

There are therefore no additional volumes and no knocking devices the otherwise usual filters are required.

In the plan view of this FIG. 13, FIG. 14, the base plate 3 is one combined aggregate / cement silo with, for example, 5 aggregate chambers K 1 - K 5 and 2 cement chambers Z 1 / Z2. The cellular wheel rollers for direct cement metering are denoted by 6.

The container assembly as previously described, is shown in FIGS. 15, 16 u. to be combined with ground storage and dosing. The container 1 acts as a buffer between the mixer 9 and the conveyor belt 37. This buffer effect enables the same high performance as with tower systems with less powerful take-off and high-level conveyor systems, thus leading to lighter conveyor belts and thus lower drive power.

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Position overview

1 Aggregate scale A. 2 Cement scales B. 3 Bottom of the aggregates silo C. 4th Dosing closures aggregates oi 5 Reversible flap distributor cement .ß 6th Cellular wheel rollers T 7th Flat slide I. 8th Distribution chute K 9 Pan mixer H 10 Pan mixer drive T 11th Water supply K1 12th water meter Z1 13th Spirit level 14th Water distributor 15th Display heads 16 Main frame 17th Stairs 18th Mixer stage 19th Mixer flap 20th Cover plate above 21 Support 22nd Support profiles 23 Diagonal bracing 24 Transverse profiles 25th Compressed air system 26th Support approaches 27 Cone reinforcement ring 28 Safety bracket 29 Silo body 30th Silo supports 31 Distributor in the silo 32 K-Association of the Stützkonstr. 33 2-shaft compulsory mixer 34 Discharge funnel 35 Weighing lever work 36 In-line dosing system 37 Elevator belt 38 Intermediate container without scales 39 • Cement screw conveyor < 40 Control panel 41 Control cabin 42 Star dosing system 43 Parting plane sild halves 44 Additive dosing 45 Adjustment profiles 46 Diagonal bracing 47 Additive feed line 48 partition wall 49 Vent line 50 Graduation apron 51 Storage silo aggregates / cement 52 Silo halves

Components outside the mixing block Components inside the mixing block Displacement control cabin Vertical viewing angle Vertical viewing angle Horizontal viewing angle

Height of container unit Width of container unit Width of silo half Deep silo half

K1 - K5 aggregate tanks, cement silo chambers

Claims (1)

STBITER GMBH MEMMINGEN 8940 Menmingen, April 14, 1981 New World 2 • Auxiliary utility model registration Protection claims T. dry filling or concrete preparation plant, especially in Tumfoauweise, consisting of a silo system for the aggregates with associated Elevated conveyance, a silo system for cement and powdery aggregates with a feed device in a weighing container, one that can be driven under Support structure (A) as well as facilities for dosing the aggregates, of cement, additives and admixtures, weighing, dispensing and distribution facilities. the display, the mechanical Force introduction, preferably a compressed air force generator and with one or more mixers, as well as the control unit with programming the overall system (B), characterized in that all functional parts (B-parts) of the dry filling station or the concrete preparation plant to a fully integrated, factory-made and function-tested and optionally completely weather-protected road, Ship and rail transportable container unit are combined. 2. Dry filling or concrete preparation station, especially in tower construction according to claim 1, characterized in that the bottom (3) of the aggregate silo with the dosing caps for aggregate (4) and metering devices for cement (6) included in the container unit are. 3. Dry filling or concrete preparation station, especially in tower construction according to the preceding claims, characterized in that * ft - 2 - the container unit on transverse profiles of the silo supports (30), the supports of the conveyor belt (37) and / or the cement silo construction can be set up. 4. Dry filling or concrete preparation station, especially in tower construction according to claims 1 and 2, characterized in that the container unit is attached to the aggregate and cement silo (51) and is locked between the container frame and silo supports (30), for example by securing brackets (28). 5. Treckenfüll- or concrete preparation station, especially in tower construction according to the preceding claims 1 to 4, characterized in that that which is switched off from the machine side, protected from noise and dust The control cabin (41) can be adjusted in height and locked in relation to the machine side. 6. Dry filling or concrete preparation station according to one of the preceding Claims, characterized in that the arrangement of the mixer (9) and the common discharge funnel (34) is approximately in the longitudinal center of the container unit and the aggregate scale (1) with the outer edge within the width limit of the one long side, the cement scales (2) lie in the width limit of the other long side. 7. Dry filling or preparation system according to one of the preceding Claims, characterized in that the main container support frame (16) forms its lower limit and the mixer or mixers (9/33) these longitudinal members are placed on cross connections or the aggregate and cement weighing containers (1/2) stand on the main frame. - O - • * • · ·· β · ι 8. Dry filling or preparation system according to one of the preceding Claims, characterized in that the main longitudinal girder (16) at the level of the upper edge of Plate mixers (9) are, these are indirectly attached to the side members. 9. Dry filling or preparation system according to one of the preceding Claims, characterized in that the support profiles of the weighing containers for aggregates and Cement are provided with devices that allow the or the mixer (9) after removing the support transverse profiles (52) lower on level ground. 10. Dry filling or preparation system according to one of the preceding Claims, characterized in that the supply of water and additives to or in a silo support (30) takes place on the cement silo side, the partition (48) runs along between the engine room and the control stand, the water meter (12) or the spirit level (13) being installed there and when using a spirit level this either under the floor or above the floor in the engine room between a mixer (9) and the Partition (48) is arranged on the side of the control panel (40) so that the water supply 'into the mixer or mixers (9/33) is similar with volume dosing or weight dosing takes place and the passage always remains freely accessible from the control cabin (41) into the engine room. 11. Dry filling or concrete preparation plant according to one of the preceding Claims, characterized in that For a high-performance dry filling station for transport mixers, the space between the metering closures (4) and the lower edge of the container is taken up by enlarged weighing containers for cement and aggregates and the capacity of the aggregate scale is equal to or greater than 3 m ³ . 4 _ 12. Dry filling or concrete preparation plant according to one of the above Claims, characterized in that when using the container in conjunction with a star (42) or Row dosing system (36) with lower weighing of the aggregate weighing container (1) becomes effective as a buffer container (without weighing). 13. Dry filling or concrete preparation plant according to one of the aforementioned Claims, characterized in that the storage silo (51) of the tower system has a rectangular cross-section and is divided in the middle, the partial area being at right angles to the longitudinal axis of the container, the container with the dosing closures (4) attached to the silo halves (52) and the base frame of the container opposite the silo supports (30) additionally by securing brackets (28) or the like is held. • 14. Concrete preparation plant according to one of the preceding "claims, characterized marked that the compulsory mixer or mixers (9) is provided with a vent line (49) is / are in the middle of the additive weighing container (1) ends pointing downwards, with between the aggregate weighing container (1) and a closing skirt (50) is arranged at the bottom of the aggregates silo is. , 15. Concrete preparation plant according to one of the preceding claims, characterized marked that the cement weighing container (2) is connected to the ventilation line (49) of the compulsory mixer (9/33). 16. Concrete preparation plant according to one of the preceding claims, characterized marked that the metering elements of the cement (6) are part of the container unit are. 17. Concrete preparation plant according to one of the preceding claims, characterized marked that j the discharge funnel (34) of the concrete mixer (9) or the concrete mixer (33) is arranged so that the parabola of the mass of the concrete flow with \ the axis of the lower release opening coincides. 18. dry filling or concrete preparation plant according to claim 1, characterized marked that the pre-assembled aggregate metering closures (4) and, if applicable Cellular wheel rollers (6) rest or are suspended for transport in a subframe or in the aggregate container and in the Assembly against the silo base plate (3) can be raised and anchored.