EP3722059A2 - Mixing installation and housing for a mixing plant - Google Patents

Abstract

The invention relates to a mixing plant (1) with a portal unit (2), the portal unit (2) having at least one scale (3) for weighing the components of the mix, a mixer (4) for mixing the components of the mix and a dispensing device (5) for Discharging the mixed material, the portal unit (2) being convertible from a mountable and demountable housing (6), the housing (6) being made up of transportable modules (7, 7a, 7b, 7c, 7d, 7e, 7f, 7g ) can be assembled, wherein the modules (7, 7a, 7b, 7c, 7d, 7e, 7f, 7g) can be connected to the portal unit (2) and are detachable. The invention also relates to a housing for a mixing plant, a portal unit (2) of the mixing plant (1) being convertible from the mountable and demountable housing (6) and the housing (6) being made up of transportable modules (7, 7a, 7b, 7c) , 7d, 7e, 7f, 7g) can be assembled, the modules (7, 7a, 7b, 7c, 7d, 7e, 7f, 7g) being releasably coupled to the portal unit (2).

Description

The invention relates to an, in particular mobile or stationary, mixing plant with a portal unit and a housing for a mixing plant with a portal unit, the portal unit having at least one scale for weighing out the components of the mix, a mixer for mixing the components of the mix and a dispensing device for dispensing the comprises mixed mixed material, wherein the portal unit can be converted from a mountable and demountable housing.

Usually, truck mixers drive to stationary mixing plants to receive concrete, which then fill the concrete produced in the mixing plants into the truck mixers. The concrete poured into the truck mixer is then transported to the construction site. However, such a transport is uneconomical if large amounts of concrete are required for the production of large structures, such as airports, dams, bridges or tunnels, which must then be approached over long distances, since there is no mixing plant nearby. To supply large construction sites with concrete, it is therefore common to use a concrete mixing plant in the immediate vicinity. Since such mixing systems are only required until the building is completed, mobile mixing systems are used in these cases.

It is known to provide such mixing systems with a housing which protects the portal unit against the weather and to make the components, such as the scales and the mixer, easily accessible for maintenance and repairs do. The housings therefore usually have outer walls and walkways that have to be attached to the portal unit in a complex manner.

In particular, to set up a mobile mixing plant quickly and easily from transport units suitable for road transport and also to break it down again into such transport units, the suggests DE 297 11 500 U1 propose to provide the mobile mixing plant with posts that are articulated to the portal unit and that can be pivoted from a transport position to a construction position when being set up. Enclosure of the portal unit is not provided in this solution. The construction and dismantling of an enclosure is time-consuming, so that such an enclosure is regularly dispensed with in order to accelerate the construction and dismantling of the mobile mixing plant on the construction site. This is associated with the disadvantage that the portal unit and people working on the portal unit are exposed to the weather without protection. This is a serious problem in some climates.

It is therefore the object of the invention to provide an improved mixing system that offers an effective, quickly assembled and dismantled housing of a portal unit and thus enables effective protection against the weather and easy access to the main components of the portal unit without significant loss of time during assembly and dismantling.

This object is achieved by a mixing plant with the features of claim 1 and a housing for a mixing plant according to claim 11.

Because the housing of the mixing plant can be composed of transportable modules, the modules being releasably coupled to the portal unit, the housing can be quickly and easily mounted and dismantled on the portal unit on the construction site. With such a housing that can be assembled and dismantled, the portal unit of the mobile mixing plant can be quickly and easily protected against the weather, and the components of the portal unit, such as the at least one scale and the mixer, can be easily serviced and repaired by people working on the portal unit be made accessible. The construction of the enclosure from each transportable module that can be easily transported without special rights allow the transport of the mixing plant including housing without having to register a heavy transport. This reduces the costs for transporting the mixing plant and also makes it more flexible in terms of time. This not only speeds up the construction and dismantling of the mixing plant with the housing, but also the transport between two construction sites. By simply coupling the modules to the portal unit, the housing can be assembled quickly when it is set up on the construction site. When dismantling, the modules can be easily detached from the portal unit and then transported individually to the next construction site. For this purpose, the transportable modules have dimensions that allow easy transport in road traffic.

Advantageous refinements and developments of the invention result from the dependent claims. It should be pointed out that the features listed individually in the claims can also be combined with one another in any desired and technologically meaningful manner and thus show further embodiments of the invention.

According to an advantageous embodiment of the invention it is provided that the modules are self-supporting. With the self-supporting design of the modules, the housing can be transported very easily disassembled, since the individual modules form compact and stable transport units which, like the portal unit, can easily be transported on a low-loader.

Particularly preferred is an embodiment which provides that the modules can be preassembled with one another via assembly devices. By pre-assembling the modules, they can be assembled on the ground using the assembly devices. The module parts pre-assembled using the assembly equipment can then be quickly and easily coupled to the portal unit. A mobile crane is used to couple the modules to the portal unit, which lifts the modules, preferably in the pre-assembled state, to the erected portal unit for coupling.

A particularly advantageous embodiment of the invention relates to the fact that the assembly devices are designed as pin-wedge connectors with spring cotter pins are trained. The modules can be preassembled and dismantled quickly and easily using the pin-wedge connector. The spring pin is used to secure the connection between the modules preassembled via the assembly devices quickly and easily.

A particularly advantageous embodiment of the invention provides that the housing can be assembled from two preassembled side parts, a preassembled roof part and a front connecting part and a rear connecting part. With this division of the housing, quick and easy assembly and disassembly on the portal unit is possible. The pre-assembled modules can also be divided into other separations. It is also conceivable to integrate functional components of the mixing system into the individual modules, if this is advantageous. The size of the enclosure can also be adjusted, from overall cladding to enclosing individual levels.

An advantageous embodiment of the invention provides that the housing encloses the portal unit in the area of the balance and the mixer. The housing in the area of the main components of the portal unit protects them particularly effectively against the weather and makes them easily accessible for maintenance and repairs. People working on the portal unit can safely and securely carry out maintenance work and repairs via the housing.

An embodiment which provides that the modules of the housing can be releasably coupled to the portal unit via coupling devices is particularly advantageous. With the coupling devices, the modules can be very easily connected to the portal unit or separated from the portal unit. The coupling devices offer a safe and stable connection to form a mixing system unit from portal unit and housing. The coupling devices offer a mechanically producible connection between the modules and the portal unit. The mechanical connection via the coupling devices can easily be canceled to release the modules from the portal unit.

An advantageous embodiment provides that the coupling devices comprise at least one lockable hook. A connection between the modules and the portal unit can be established very easily via the lockable hook. For this purpose, the coupling device has a corresponding hook receptacle in which the hook can be hung. The locking of the hook prevents unintentional detachment of the modules from the portal unit and thus ensures a secure connection between the housing and the portal unit.

According to a preferred embodiment of the invention it is provided that the coupling devices include at least one retaining bolt engaging in a dovetail guide. The retaining bolt of the coupling device can easily be guided via the dovetail guide, which facilitates the exact positioning of the modules on the portal unit.

An embodiment is particularly advantageous which provides that the coupling devices comprise at least one first, upper coupling device and at least one second, lower coupling device arranged below the first coupling device, the first coupling device being formed by a lockable hook and the second coupling device being connected to a Dovetail guide engaging retaining bolt. The module can be simply hooked onto the portal unit during coupling via the first coupling device. For this purpose, the coupling device has a corresponding hook receptacle into which the hook can be hung. The second coupling device supports this process because the dovetail guide simplifies the exact positioning of the modules on the portal unit, which makes it easier for the hook to hook into the corresponding hook holder. This allows the modules of the housing to be easily coupled to the portal unit with a mobile crane.

Furthermore, the subject matter of the invention is a housing, which has already been described and is described below, for a mixing plant that has already been described and is described below, a portal unit of the mixing plant being convertible from the mountable and demountable housing, the housing being made up of transportable modules already described below Can be put together, the modules being releasably coupled to the portal unit. Existing mixing systems can easily be retrofitted with such an enclosure. For this purpose, the coupling devices already described and described below are advantageously simply added to the portal unit at a later date.

Figur 1 u. 2:

eine erfindungsgemäße Mischanlage mit erfindungsgemäßer Einhausung,

Figur 3:

die Portaleinheit,

Figur 4:

eine erfindungsgemäße Einhausung,

Figur 5:

ein Modul mit Verkleidung,

Figur 6:

Explosionszeichnung

Figur 7 u. 8:

eine Montageeinrichtung,

Figur 9:

Einhängen von Seitenteilen,

Figur 10:

die Portaleinheit mit Seitenteilen,

Figur 11:

die Portaleinheit mit Schwalbenschwanzführungen,

Figur 12:

ein Modul mit Haltebolzen in Schwalbenschwanzführungen,

Figur 13:

ein Modul mit Haken,

Figur 14:

eine Detailansicht des Hakens,

Figur 15:

das Aufsetzen eines Dachteils und

Figur 16:

die Portaleinheit mit Dachteil.

Further features, details and advantages of the invention emerge on the basis of the following description and on the basis of the drawings which show exemplary embodiments of the invention. Objects or elements that correspond to one another are provided with the same reference symbols in all figures. Show it:

Figure 1 u. 2:

a mixing plant according to the invention with housing according to the invention,

Figure 3:

the portal unit,

Figure 4:

an enclosure according to the invention,

Figure 5:

a module with cladding,

Figure 6:

Exploded view

Figure 7 u. 8th:

an assembly facility,

Figure 9:

Hanging side parts,

Figure 10:

the portal unit with side panels,

Figure 11:

the portal unit with dovetail guides,

Figure 12:

a module with retaining bolts in dovetail guides,

Figure 13:

a module with hooks,

Figure 14:

a detailed view of the hook,

Figure 15:

putting on a roof part and

Figure 16:

the portal unit with roof part.

In the Figure 1 and the Figure 2 denoted by the reference numeral 1 is a mixing plant according to the invention. The mixing plant 1 has a portal unit 2, which is equipped with at least one scale 3 for weighing mix components such as cement, water and other additives, which are conveyed to the portal unit 2 from silos with closed screw conveyors. In addition, the portal unit 2 has a mixer 4 arranged below the scales 3 for mixing the constituents of the material to be mixed. This mixer 4 can be designed as a twin-shaft mixer, as shown in FIG Figure 1 is indicated. A dispensing device 5 in the form of a dispensing hopper for dispensing the mixed material to a truck mixer that is brought up to the portal unit is located below the mixer 4 on the portal unit 2. To feed the scales 3, the portal device 2 has a feed device 10 in the form of a feeder elevator. This feeder elevator 10 is usually fed via row silos for the tensile impact materials. The feeder elevator 10 is usually driven by a feeder drive 21 which is arranged on the portal unit 2 above the at least one scale 3. For the binding agents 2 silos are set up near the portal unit, which are connected via screw conveyors, which convey the cement contained in the silos into the scales 3. The portal unit 2 also has a control container 11, from where the mixing plant 1 is controlled. The portal unit 2 is surrounded by a housing 6 which encloses the portal unit 2 in the area of the scales 3 and in the area of the mixer 4. The main components of the portal unit are easily accessible for repairs or maintenance work via the catwalks 12 formed on the levels of the housing 6. The portal unit 2 can, thanks to the support 20, be approached by the truck mixers on a total of three sides.

In the Figure 3 Portal unit 2 shown individually can be mounted and dismantled via the housing 6, which is individually shown in Figure 4 is shown to be rebuilt. For this purpose, the housing 6 consists of individually transportable modules 7, 7a, 7b, 7c, 7d, 7e, 7f, 7g, which can be assembled to form the housing 6. The modules 7, 7a, 7b, 7c, 7d, 7e, 7f, 7g can be detachably coupled to the portal unit 2. The housing 6 can thus be quickly and easily installed and dismantled on the portal unit 2 on the construction site. With the housing 6 which can be built up and dismantled, the portal unit of the mobile mixing plant 1 can be quickly and easily protected against the weather, and the components of the portal unit 2, such as the scales 3 and the mixer 4, can be used for maintenance and repair purposes for people working on the portal unit 2 easily accessible for repair.

The modules 7, 7a, 7b, 7c, 7d, 7e, 7f, 7g of the housing 6 are designed to be self-supporting. To protect against the weather, the modules 7, 7a, 7b, 7c, 7d, 7e, 7f, 7g can be provided with claddings 13, which form outer walls of the housing 6 when the housing 6 is mounted on the portal unit 2. The modules 7, 7a, 7b, 7c, 7d, 7e, 7f, 7g can optionally be covered with different surfaces 13 for cladding, such as ISO panels, plastic tarpaulin, wooden cladding, or the like. Furthermore, the catwalks 12 of stage levels of the housing 6 and also the steps, for example ladders and / or stairs, can already be integrated into the modules 7, 7a, 7b, 7c, 7d, 7e, 7f, 7g in other levels. Instead of paneling 13, there is still the option of using a railing with a handrail as a fall protection in order to use the system partially or entirely as an open system, for example only with a roof 14. Doors and windows can be used in the cladding due to the self-supporting structure of the modules 7, 7a, 7b, 7c, 7d, 7e, 7f, 7g in all suitable cladding areas according to customer requirements. In Figure 5 it is indicated that the panels 13 are simply attached to the self-supporting structure of the modules 7, 7a, 7b, 7c, 7d, 7e, 7f, 7g.

The Figure 6 shows an exploded view of the mixing plant 1 to illustrate the assembly of the modular housing 6 on the portal unit 2. The housing 6 consists of two pre-assembled side parts 7, 7a, 7b, 7c, a preassembled roof part 7d, 7e and a front connecting part 7f and a rear connecting part 7g, which are assembled in a modular manner to form the housing 6. To assemble the housing 6 on the portal unit 2, the side parts formed from two modules 7, 7a and 7b, 7c are first pre-assembled on the floor. The roof part of the housing 6, which is formed from two modules 7d and 7e, can also be preassembled on the floor. Subsequently, the pre-assembled side parts 7, 7a, 7b, 7c are successively coupled to the portal unit 2 before the side parts 7, 7a, 7b, 7c are connected to one another on the portal unit 2 first via the front connecting part 7f and then via the rear connecting part 7g. The preassembled roof part 7d, 7e is then placed in order to close off the housing 6 of the portal unit 2. The dismantling of the housing 6 from the portal unit 2 is simply carried out in reverse order. With the division of the housing 6 shown here, a quick and easy assembly and disassembly on the portal unit 2 is possible.

For pre-assembly and disassembly, the modules 7, 7a, 7b, 7c, 7d, 7e, 7f, 7g have corresponding assembly devices 8, which enable the modules 7, 7a, 7b, 7c, 7d, 7e, 7f, 7g to be easily connected to one another and enable quick separation of the modules 7, 7a, 7b, 7c, 7d, 7e, 7f, 7g from one another. Such a mounting device 8 is shown in Figure 7 shown. It connects at the in Figure 4 marked point the right side part 7b, 7c with the roof part 7e. The assembly device 8 is designed as a pin-wedge connection and secured with a spring pin 15.

In Figure 8 the assembly device 8 is shown separately. It can be seen here that when the modules 7, 7a, 7b, 7c, 7d, 7e, 7f, 7g are connected, the pin 16 is received in the wedge 17. The spring pin 15 prevents the wedge 17 from slipping out of the pin 16. This connection via the assembly devices 8 can be easily established without tools for the pre-assembly of the modules 7, 7a, 7b, 7c, 7d, 7e, 7f, 7g and for the disassembly of the modules 7, 7a, 7b, 7c, 7d, 7e, 7f, 7g just as easily separate again.

The Figures 9 and 10 illustrate the process of coupling the side parts 7, 7a, 7b, 7c to the portal unit 2. For coupling the side parts 7, 7a, 7b, 7c these are simply attached to the side of the portal unit 2 with a truck crane, as shown in Figure 10 you can see.

The Figure 11 shows dovetail guides arranged on the portal unit 2, which serve as coupling devices 9b between the modules 7, 7a, 7b, 7c, 7d, 7e, 7f, 7g and the portal unit 2. The modules 7, 7a, 7b, 7c, 7d, 7e, 7f, 7g of the housing 6 can be coupled and detachably connected to the portal unit 2 via these coupling devices 9b. Exact positioning of the modules 7, 7a, 7b, 7c, 7d, 7e, 7f, 7g when coupling to the portal unit 2 is simplified via the dovetail guide 9b. The modular housing 6 according to the invention can also be retrofitted to existing portal units 2; for this purpose, the coupling devices 9b are advantageously simply added subsequently.

In the Figure 12 can be seen on the side part 7, 7a, 7b, 7c arranged retaining bolts 9a, which engage in the corresponding dovetail guides 9b of the coupling devices. In order to make this interference clearly recognizable, in Figure 12 only the dovetail guides 9b according to FIG Figure 11 shown, without the rest of the portal unit 2. The retaining bolts 9a for hanging in the dovetail guides 9b are located within the floor support frame of the lower side module 7, 7b.

The Figure 13 shows hooks 9 which are arranged on the side part 7, 7a, 7b, 7c and which serve as coupling devices. The modular side part 7, 7a, 7b, 7c is suspended from the portal unit 2 via these hooks 9.

In Figure 14 is a detailed view of a coupling device 9 according to Figure 13 to see. In this illustration it can be seen that the hook 9, or the module 7a, can be locked to the portal unit 2 via a bolt 19 together with a pin 16 and a spring pin 15 in order to establish a secure connection between the suspended modules 7, 7a, 7b, 7c and the portal unit 2.

In connection with the coupling devices 9, 9a, the Figure 9 Referenced. A first, upper coupling device 9 is closed here see, which is formed by a lockable hook 9. A second, lower coupling device 9a arranged below the first coupling device 9 is additionally provided. The second coupling device is designed as a retaining bolt 9b. Via the first coupling device 9, the module 7, 7a, 7b, 7c can simply be hooked into the portal unit 2 when coupling from the mobile crane. For this purpose, the coupling device 9 has a corresponding hook receptacle on the portal unit 2, into which the hook 9 can be suspended. The second coupling device 9a supports this coupling process, since the dovetail guide 9b on the portal unit 2 simplifies the exact positioning of the modules 7, 7a, 7b, 7c on the portal unit 2, which makes it easier to hook the hook 9 into the corresponding hook holder. In this way, the modules 7, 7a, 7b, 7c of the housing 6 can easily be coupled to the portal unit 2 with a vehicle crane.

The Figures 15 and 16 illustrate the assembly step of coupling the roof 7d, 7e to the portal unit 2 and the rest of the housing 6. For coupling, the preassembled roof 14 is simply connected to the portal unit 2 and the modules 7, 7a, 7b, 7c attached to the portal unit 2 using a mobile crane , 7f, 7g attached and bolted. The construction of the housing 6 is designed so that the cement screws required for the mixing plant function can be guided through the cladding 13 of the housing 6 from one side or from up to three sides.

List of reference symbols

1. 1 mixing plant
2. 2 portal unit
3. 3 scales
4. 4 mixers
5. 5 dispenser
6. 6 enclosure
7. 7 side part, bottom left, 7a side part, top left, 7b side part, bottom right, 7c side part, top right, 7d roof part left, 7e roof part right, 7f connecting part front, 7g connecting part rear (modules)
8. 8 tenon-wedge connection (assembly equipment)
9. 9 hooks, 9a retaining bolts, 9b dovetail guide (coupling devices)
10. 10 feeding device (feeder elevator)
11. 11 control container
12. 12 catwalks
13. 13 panels
14. 14 roof
15. 15 spring cotter pins
16. 16 tenons
17. 17 wedge
18. 18 floor support frame
19. 19 bars
20. 20 support
21. 21 Feeder drive

Claims (11)

Mixing plant (1) with a portal unit (2), the portal unit (2) having at least one scale (3) for weighing the components of the mix, a mixer (4) for mixing the components of the mix and a dispensing device (5) for dispensing the mixed mix comprises, wherein the portal unit (2) can be converted from a mountable and demountable housing (6),
characterized,
that the housing (6) can be composed of transportable modules (7, 7a, 7b, 7c, 7d, 7e, 7f, 7g), the modules (7, 7a, 7b, 7c, 7d, 7e, 7f, 7g) can be releasably coupled to the portal unit (2). Mixing plant (1) according to Claim 1, characterized in that the modules (7, 7a, 7b, 7c, 7d, 7e, 7f, 7g) are self-supporting. Mixing plant (1) according to Claim 1 or 2, characterized in that the modules (7, 7a, 7b, 7c, 7d, 7e, 7f, 7g) can be preassembled with one another via assembly devices (8). Mixing plant (1) according to Claim 3, characterized in that the assembly devices (8) are designed as pin-wedge connectors with spring pins. Mixing plant (1) according to one of claims 1 to 4, characterized in that the housing (6) consists of two preassembled side parts (7, 7a, 7b, 7c), a preassembled roof part (7d, 7e) and a front Connecting part (7f) and a rear connecting part (7g) can be assembled. Mixing plant (1) according to one of the preceding claims, characterized in that the housing (6) encloses the portal unit (2) in the area of the scales (3) and the mixer (4). Mixing plant (1) according to one of the preceding claims, characterized in that the modules (7, 7a, 7b, 7c, 7d, 7e, 7f, 7g) of the housing (6) can be coupled to the portal unit (2) via coupling devices (9) and are solvable. Mixing plant (1) according to Claim 7, characterized in that the coupling devices (9, 9a) comprise at least one lockable hook (9). Mixing plant (1) according to Claim 7 or 8, characterized in that the coupling devices (9, 9a, 9b) comprise at least one retaining bolt (9a) engaging in a dovetail guide (9b). Mixing plant (1) according to one of claims 7 to 9, characterized in that the coupling devices (9, 9a, 9b) have at least one first, upper coupling device (9) and at least one second, lower coupling device arranged below the first coupling device (9) (9a, 9b), the first coupling device (9) being formed by a lockable hook (9) and the second coupling device (9a, 9b) being a retaining bolt (9a) engaging in a dovetail guide (9b). Housing (6) for a mixing plant (1), wherein a portal unit (2) of the mixing plant (2) can be converted from the mountable and demountable housing (6),
characterized,
that the housing (6) consists of transportable modules (7, 7a, 7b, 7c, 7d, 7e, 7f, 7g) can be assembled, the modules (7, 7a, 7b, 7c, 7d, 7e, 7f, 7g) being releasably coupled to the portal unit (2).

Images