DE2346212A1 - MOBILE BITUMEN CONCRETE MIXING DEVICE - Google Patents

Description

PATENTANWÄLTE HENKEL - KERN - FEILER - HÄNZEL - MÜLLER

DR. PHIL. D1PL.-ING. DR. RER. NAT. D1PL.-ING. D1PI ..- ING.

TBLBX: »s it ιοί HNKL DED UAR D-SC H MID-STRAS SE 2 Bavarian mortgages and

THLlPON: (Olli) 1 * 11 t7. * »3tll-t2 mnil lllturUDU Dn EXCHANGE BANK MCNCHhN NO. 31S- «5 IU

TBLBOEAMMB: ELLIPSOID MÖNCHEN D-BOOO MUNICH 90 POSTSCHECK MCHN 1 * 2147-10 »

Harold Martin Zimmerman 2346212

Ephrata, Pa., V.St. A.

1 a SEP. 1973

Mobile bitumen concrete mixing device

The invention relates generally to road construction machinery and, more particularly, relates to a self-contained, Mobile bitumen concrete mixing and application device that can be used directly on the construction site is. The term "bituminous concrete" used in the description refers to an elastic road surface material, commonly referred to as macadam, black pavement, or asphalt, in contrast to rigid portland cement and concrete pavement surfaces with a portland cement binder.

Currently- there are many streets and carriageways that are occasional Require normal maintenance and repair or repair. For larger hardening or repair work, which require re-paving of entire sections of the carriageway can be economical and practical large road construction machines are used. For smaller, comparatively insignificant repair work, where only a patchy patch is needed or the like. is necessary, on the other hand, it is not expedient to sever Provide road construction equipment and transport it to the construction site in order to carry out this work.

As such, most of the repair work is done by hand. A typical procedure exists

409813/0426

~ ² ~ 2345212

For example, in loading bituminous concrete onto the loading area of a truck or similar vehicle
and then a team of several workers to the
To send the lane where the repair is to be carried out. The bitumen concrete is then used to

Repair by hand in the pavement holes or
-cracks shoveled and then at the end of the
Repairs pulped by hand.

There are obvious disadvantages to this manual method. For example, not just one nut
several workers comprehensive team are set up, but this team must also know in advance the amount of material required for the work in question, since
the bitumen concrete, once it has been mixed and loaded onto the vehicle, not for a long period of time
can be kept in a workable state away. The short time during which the pre-mixed bituminous concrete remains soft also makes it difficult to carry out a repair at a point that is far away from the mixing plant and that can only be reached after a comparatively long journey time. Further difficulties arise especially when carrying out repair work in winter. In this regard, a repairs to the concrete bitumen concrete is of course preferred to cold repairs because of its better retention properties. However, this hot touch-up cannot be easily applied in the winter months
because the hot-mixed bituminous concrete, if it can be delivered, cannot be kept at an elevated temperature on the truck for a longer period of time. Mainly for this reason, most road repair work is carried out in winter using the cold method, which is, however, uneconomical and inevitably requires further repairs later, as a cold repaired area is

409813/0425

use and temperature fluctuations are not as resistant is like a hot-patched place.

In addition, there may be a premixed cement concrete batch that goes to the job site conveyed is not of the same high quality and / or consistency as that actually conveyed at the job site mixed bituminous concrete.

Obviously, there is therefore a need in the field of roadway repair and re-paving for devices with the help of which the repair of the roadway is modernized and otherwise simplified can be, so that the disadvantageous manual procedures currently in use are avoided can. The invention is therefore primarily based on the task of creating a device with which this need can be met.

More precisely, the invention aims to provide a novel device which comprises the components of bituminous concrete in separate chambers to the construction site, where the device then the components αtomatisch measures or doses and the bitumen concrete mixes and applies, resulting in the application of a consistently high-quality touch-up blanket every repair point is guaranteed without wasting material.

bi-t of this apparatus is also intended the mixed Eitumenbeton automatically be coatable on the surface of the road to be repaired.

In addition, this device should be completely self-contained and mobile, with the entire repair work feasible with a smaller work team, e.g. only one man

409813/0426

meant to be.

Hot bitumen concrete repair work can be carried out with the reader in every season, i.e. also during the winter months.

Furthermore, with this device, a high quality repair of roads at low Costs can be achieved.

This task is performed with a self-contained, mounted on a mobile frame or chassis Bitumen concrete mixing device solved according to the invention by a storage device for the fillers, a second storage device for liquid bitumen, a metering device for metering and discharging the fillers from the first storage device in predetermined Quantities and proportions, a device for heating the removed fillers, a second metering device to dispense a predetermined amount of the liquid bitumen from the to be taken from the second storage device, and a device for mixing the metered components with the formation of bitumen concrete.

The device according to the invention thus forms an in self-contained, mobile, i.e. self-propelled bitumen concrete mixing and application device. In preferred Embodiment is this device on a chassis z.3. a truck arranged, and it has a number of separate farmers for separate storage of the aggregates or fillers and of the liquid components of a concrete mix on. For example, there are separate. \ 'Ap.r.ern for recording of fine and coarse-grained fillers and for the storage of liquid bitumen, such as asphalt.

409813/0425

BATH

The fillers are applied at the construction site via metering slides ο the like. taken from their respective chambers so that a predetermined amount and a predetermined ratio the fillers can be guaranteed. Then the fillers are also put on the chassis arranged heating and drying device promoted in the preferred embodiment of the Invention consists of a rotating heating and drying drum. The fillers are grounded in the rotatable Drum dried and heated to a temperature of about 2o4 ° C and then in a hopper with a poured further metering device from which the Fillers are discharged into a pan grinder mixer conveyor. Liquid bitumen is fed to the mixing conveyor supplied from a separate, possibly heated storage chamber. The amount of dry matter in relation to the liquid bitumen is supplied with the aid of the metering device assigned to the filling funnel and by means of a bitumen metering device carefully controlled. In this way, a bituminous concrete is created with a controlled consistency and quality guaranteed.

The bituminous concrete, i.e. the mixture of fillers and the bitumen, then becomes an application device, preferably arranged on the rear of the chassis transferred, with the help of which the bituminous concrete on the surface of a device located under this device Road surface is applied. In a preferred embodiment of the invention, the application device has a front-side heating chamber, through which the road surface below it is heated to a to ensure good adhesion of the bitumen concrete. In addition, there are several screw conveyors for uniform The 3itumen concrete is to be distributed over the heated road surface. The bituminous concrete spread over is pulped by means of a vibrator and

409813 / C425

finally compacted by means of a roller arranged on the back of the spreading or application device.

The combined bituminous concrete mixing and spreading device generally described above stores all components of the bituminous concrete are separated, so that the difficulties associated with a premature Curing of a premixed batch associated with it can be completely turned off. In addition, the According to the invention a predetermined amount of bituminous concrete mixed with controlled consistency and quality at the construction site, ^ .o that the previous ones Difficulties in determining the amount of bituminous concrete that is required for a given repair job are eliminated. With the help the device according to the invention carried out repair work the hot process can also be used during the winter months, and what else more importantly, the device according to the invention can if desired, can be operated by a single man.

In the following, a preferred embodiment of the invention is explained in more detail with reference to the accompanying drawing. Show it:

Fig. 1 is a side view of a truck, which for receiving the self-contained Bituminous concrete mixing device is designed with features according to the invention,

FIG. 2 is a plan view of the device according to FIG. 1,

3 shows a partially broken away and shown in section for the sake of better illustration Side view of the device according to FIG. 1,

409813/0425

Fig. 4 is a section along the line 4-4 in Fig. 3, 5 shows a section along the line 5-5 in FIG. 3, FIG. 6 shows a section along the line 6-6 in FIG. 3,

7 shows a rear view of the device in FIG. 1,

8 shows a plan view of the bituminous concrete application device dragged behind the device according to FIGS. 1 and 3 and

FIG. 9 shows a section along the line 9-9 in FIG. 8 through the screw conveyor or scatter conveyor Bituminous concrete application device.

According to Fig. 1, the bitumen concrete mixing device according to the invention is on the chassis or chassis 2o of a truck generally designated 22 arranged. The inventive device has a first storage device 24 for receiving coarse and fine-grained fillers such as sand and gravel, as well as a second storage device 26 for receiving liquid bitumen, such as liquid asphalt or tar. The ones contained in the first storage device 24 Fillers or aggregates are made from this storage device Taken via a metering device 28 (Fig. 3) and discharged and by means of a conveyor which has a practically horizontal first section 3o and has a practically perpendicular second section 32 in a heating and drying device indicated generally at 34 transferred, in which the fillers are dried and heated to an elevated temperature and transferred to the back or be transported to the left side of the device according to FIGS. 1 and 3. Then the fillers are in

409813/0425

discharged a hopper 35, which is a further Metering device rises from which '.lic fillers Passing through in one Kollerraühlen-iccheinrichtung 116-113 become who you eat the "" "itumen viril, so that in it a bituminous concrete of controlled quality and IConsistency is formed. The one made on this "" ice ivituvnenbeton then becomes one at the rear of the chassis, generally referred to as 38, carried out the application device, which the Ditumen concrete for repairing the road surface on the surface of the pale track section located tinter it.

The preferred embodiment of the invention is v / e the first storage device 24, several separate Kairmern, like the carninals 4o and 42 on, the best from supervision on the device according to FIG. 2 can be seen. Each of the carans 4o and 42 forms a practically rectangular one Raun, whose outer walls 44 and 46 (Fig. 5) i) n essentially in the form of a hopper downwards and inwards are inclined. The separate, coarse and fine-grained fillers, such as sand and gravel or the like. Will each separately in the individual storage rooms 4o and 42 kept.

The undersides of the separate storage chamber η 4o and 42 are open and are located directly above the elongated, practically horizontal conveyor strand 3o, which can for example consist of a conveyor belt, which by a for the sake of clarity drive mechanism not shown in detail according to FIG. 3 is driven clockwise. This thtriebsiaechanisirvus could be a gear arrangement bzv7. a transmission with the still to be described, be practically vertical conveyor section 32 coupled.

409813/0426

BATH ORIGINAL

As a result of this construction, the fillers like sand and gravel, directly on the surface of the horizontal conveyor strand 3o, so that they are in operation of the conveyor in the forward direction to the front or right side of the device according to FIGS. 1 and 3 promoted v / earth. The actual "narrow proportions and ratios of the various fillers, those from the storage carousels 4o and 42 carried out are made by the first fitting device 28 controlled. This first metering device 28 is shown in FIG Fig. 5 is shown in full detail. In preferred Embodiment of the invention is this first Metering device 28 vertically displaceable slide and 5o, plural marriage assigned to chambers 4o and 42, respectively are. The slides 4B and 5o are in profiles or guides 52 vertically displaceable, so that its vertical position and its degree of opening can be easily regulated.

In a preferred embodiment, for example, everyone Slider 48 and 5o arranged on its rear side Associated rack 54, each with a pinion 56 is engaged on a shaft 58 which is rotatable by means of an external handwheel So. In this context It should be noted that the skins 53 of the control device for the slide 48 are, among other things, a flexible one Parts, although the ^ i expert in this field other control devices are also known which are readily used in place of the device according to FIG. 5 can be.

By turning the individual handwheels 6o, the proportions and proportions of the fillers, such as Sand and gravel, from the individual chambers 4o and 42 be discharged, be controlled volumetrically.

That way through the horizontal conveyor run

I 09813/0425

BATH ORIGINAL

-Ιο -

3ο discharged fillers get into a trough or a shaft 62 on egg front the device. From this shaft 62, the discharged fillers are through the practically perpendicular Conveyor section 32 conveyed upwards. In a preferred embodiment, there is the conveyor section 32 from a bucket elevator with a number of shovels or brookers 64 on a chain 66, wherein the chain 66 and hence. the conveyor section 32 is driven via a gear arrangement 68 which may have a power take-off from the vehicle on which the mixing device is mounted. Of the Conveyor section 32 is thus used to make the individual storage chambers 4o and 42 in the shaft 62 discharged fillers to promote upwards. At the At the top of the conveyor 32, the fillers conveyed up are discharged into a screw 7o located below. The screw 7o serves to feed the discharged components in the reverse direction, i.e. according to FIGS. 1 and 3 from right to left, for example in an ileiz and to promote drying device 34, in which the fillers are dried and be heated to an elevated temperature. The worm 7o can according to FIG. 4 by means of a chain or belt drive 72 are driven directly by the conveyor 32, the chain or belt 72 around an idle sprocket or an idling pulley 74 passed around is. In the preferred embodiment of the invention is the practically perpendicular conveyor section 32 of FIG enclosed by a jacket 76 and also arranged at a small acute angle with respect to the vertical, i.e. it is inclined towards the rear of the device, whereby the discharge of the fillers into the ^ heating and drying assembly 34 is facilitated, as well as the mechanical transmission and other clutch assemblies be simplified between the heating and drying device 34, as will be explained in more detail will be. 409813/0425

BATH ORIGINAL

The task of the heating and drying device 34 is to remove the fillers introduced into it to dry and raise its temperature to about 204 ° C, and then the fillers for the subsequent To promote discharge to the rear of the device. The heating and drying equipment is used for this purpose 34 according to the invention in the form of an elongated, hollow drum 78, which is preferably made of steel and with a number of ribs 8o, which extend into the interior of the hollow drum, as well as through one transverse strut 82 arranged at the front is stiffened is. The hollow drum 78 is rotatable and in one at its rear end to enable this rotational movement Bearing 84 stored. At the front end of the elongated, hollow drum 78, a part 86 is attached to the cross brace 82, this shaft being journalled at 88 and via a. Chain or a belt drive 9o drivingly with the idling pulley or the sprocket 74 of the practically vertical conveyor section 32 is connected. During the operation of the practically vertical conveyor section 32 V7, a rotation of the elongated, hollow Drum 78 spawned.

At the rear end of the rotating, hollow drum 78 is a heater 92, for example in the form of a forced air oil burner arranged. According to FIG. 7, an air supply source is connected to the burner 92 via a line 94, this line running to a fan 96 arranged according to FIG. 1 on the side of the device. One Oil line, not shown, for feeding the burner 92 is connected to an oil tank 98, which is also 'Is arranged on the * chassis 2o of the truck. Of course, a fuel other than oil can also be used to operate the burner. the Heating air supplied by the heating device or by the burner 92 flows through the rotating drum 78 from the latter

4 0 9 8 13/0425

rear 3ncle to their front end, being the rotational movement the drum, especially in connection with the inward protruding Paddles or ribs 80, causes a circulation of the fillers, so that they are heated more evenly and thereby simultaneously from the front end of the drum to its rear End transported v / earth. It can be seen that the drum 78 is the preferred one to facilitate this conveyance Embodiment of the invention is not arranged exactly horizontally, but from the front end to the rear end slightly inclined so that it effectively forms a right ΐ angle with the practically vertical conveyor section 32.

The hot air blown into the rotatable drum 78 is discharged through an air duct I00 which is a connection between the drum 78 and the storage chambers 4o and 42 produces. The air duct I00 is partly through internal Channels that lead to the individual storage chambers 4o and 42, and continue through a jacket bzvr. a cover 1o2 is formed, which extends immediately above the hollow drum 78 over the entire length thereof. How best As can be seen from FIG. 3, the air thus flows into the two storage chambers axis of the drum 78 in the direction of the arrow 1o4 4o and 42, so that it causes a pre-drying of the components located in these chambers and during operation the rotating drum 78 removes dust generated. This Air flow can continue through the arrangement of fans I06 be supported in channels, which a connection between the chambers 4o and 42 and the hollow, circumferential Manufacture drum 78. The drive for this fan I06 can be removed from the various gears provided for the practically vertical conveyor section, the conveyor section 32 itself, as mentioned, being driven from the power take-off point 68 of the vehicle.

The fillers, which are now heated and move backwards through the hollow, rotating drum 78, are grounded from this drum via a

4 09813/0426

BATH ORIGINAL

See outlet 1o8 in a hopper assembly 3 6

this
carried out, as / best from Fig. 1, 3 and 7 can be seen. The fillers filled into the filling funnel arrangement 36 are metered from this via a further slide 11o in connection with a rotatable drum or a conveyor 112, which rotates clockwise according to FIG. 7. In this ^T - else are the heated fillers which are discharged into the hopper arrangement on the rotating conveyor 112, removed via the sliding vane 11o from the hopper arrangement, it vrobei along a chute 114 into a Kollerinühlen -'- Iischeinrichtung fall into it, which is formed by a funnel device 116 and a transverse or screw conveyor 118 located below it, which will be explained in more detail below. In addition, the liquid bitumen, which has been stored in the storage chamber 26 and is discharged via a pipe 12o and a metering valve 122, is introduced into the funnel device 116 and then into the Ouerför.ierer 118. The liquid bitumen contained in the storage chamber or in the container 26 can also have been preheated by a further oil burner 124 'which is fed from the general oil container 98.

The quantity ratio in the cross or screw conveyor 118 introduced dry components to the liquid components can thus be precisely controlled so that the consistency and quality of the asphalt formed is precisely predetermined can be. In this context, it should be noted that the hopper assembly and the below located, rotating drum 112 on a pivotable arranged and spring-loaded lever or support arm 124 are mounted. More precisely, the support arm 124 is means a bearing 126 hinged to the vehicle frame while being the other end by means of a spring device 128 on the vehicle

"4 09813/0425

BATH ORIGINAL

structure is attached. On this "eisa nag the Said hopper arrangement when filling with the To move fillers downwards, while they are practically in the empty state in the position according to FIG. 7 shifted upwards. This movement of the hopper arrangement and especially the lever -b: r / * · Tragarrcs 124 can used as an indicator for the filler levels, the discharged from the heating and drying device 34 will. Here, the actuation of the circulating Conveyor or the Tronnel 112 by a slectromotor 13o, which in turn is coupled to the lever arm 124 via a mechanical linkage 132 is controlled. if the lever arm 124 pivots downward, i.e. according to FIG 7 and swings counterclockwise around its pivot point 126, the electric motor 13o is thus turned on the linkage 132 switched on. With empty hopper arrangement on the other hand, the electric motor 13o is switched off, so that a selective control of the rotation of the conveyor or the drum 112 is possible.

That in line 12o, through which the liquid bitumen is supplied, arranged metering valve 122 is also via the mechanical linkage 132 by the position of the Carrying or lever arm 124 controlled. - If the sponsor or the drum 112 is in operation and the fillers over the chute 114 discharges into the hopper 116 is thus a controlled olege of liquid bitumen under dosing creped into the funnel 116. As mentioned, can a further control of the quality and consistency of the bituminous concrete formed by operating the slide achieve which is the volume of the discharged fillers controls. Various other synchronizers will of course be apparent to those skilled in the art instead of the mechanical linkage 132, which is used to control the fillers / liquid bitumen feed in the funnel 116 can be used v / ground.

-A 0 9-813 / 0425

BATH ORIGINAL

_ 1 r "

The constituents introduced into the hopper 116 , ie both the bulk and the dry constituents, are mixed with one another in the transverse or screw conveyor 11 8, so that a mass generally referred to as egg concrete is formed. Of course, the device described above can also work essentially continuously until the amount of bitumen concrete required for the work in question has been formed. The bituria concrete is discharged from the screw conveyor 118 into an application or spreading device 38 arranged on the pick side of the chassis 2o and carried along with it.

The Aiftrageinrichtung 38 has a heat chamber device 134 which is arranged at the front ^ end of this device and which with a further oil burner or the like. Heating device 136 is connected, which is also fed from the oil container 98. In this ^w else can located under the applicator 30 ^ surface of a roadway heated, ie preheated. In the preferred embodiment of the invention, two such burners or heating devices 136 are arranged on both sides of the device, as can best be seen in FIG.

Behind the heating chamber device 134 is a transverse conveyor, generally designated 138 , for 7uif taking the bitumen concrete from the screw conveyor 118 and for evenly distributing the bitumen concrete over the preheated road surface below. As can best be seen from FIG. 9, this transverse conveyor device 138 in a preferred embodiment has two elongated screws 142 and 144 lying one above the other, of which "the screw 144 the bitumen concrete in the outward direction on both sides of the device and the screw 142 the bitumen concrete from both riding the device inward towards their center.

■ ■. M 0 9 8 1 3 / A 2 0 5 ^ ORIGINAL

In this way an even distribution of the Bituminous concrete over the underlying road surface guaranteed.

Behind the transverse conveying device 138 is a vibrating device, generally designated 146, for solidification of the applied egg-concrete. More precisely gas says the vibrator 146 in the preferred embodiment of the invention has a triangular shape Plate that defines an inner chamber, and with which a vibrator 15o is connected. Continues to provide a hollow tube or a shaft 152 a connection between the interior of the heating chamber device 134 and the vibrating chamber 146, so that the separated bitumen concrete is further increased, which means that it has good adhesive properties of the 3itumen concrete are guaranteed and its sticking to the chamber is prevented. Plate 148 of Vibrator 146 is preferably at a pivot point 153 hinged.

At the rear of the applicator 38 is one general Compaction device designated 154 for compacting the bitumen concrete applied in the previously described manner intended. In the illustrated embodiment of the According to the invention, the compression device 154 consists of a weight-loaded roller.

The application device 38 or, more precisely, the device which applies the bitumen concrete to the road surface attached to the rick side of the vehicle 22 with the aid of an attachment device generally designated 156. In preferred Embodiment, this attachment consists of a triangular bearing, which is formed by three hydraulic cylinders will. A cylinder, for example the cylinder 158, is arranged on both sides of the application device 30. In addition, there is e.g. a cylinder 16o in the middle

* 09813 / (U2S βαοοβ, ο, να ..

of the application device 38, wherein the hydraulic cylinder connects the application device in the manner with the chassis 2o of the vehicle 22 couple that both the height of the Aa £ support device 38 above the Eodenflache and you Angle relative to the floor area below without further adjustable. Of course, the rear end of the application device is carried by the compacting device in the form of the roller 154.

For the sake of clarity, numerous construction details of the present invention are shown in FIG the drawing is not shown in detail because their implementation is not the expert in this field Causes difficulties. For example, the various burners or heating devices should be electrical Be associated with temperature sensors so that their temperatures can be precisely adjusted. In addition, the Adjustment of the various metering slides described above by means of various known hydraulic ones Facilities take place, and for this purpose the invention provides, if desired, the arrangement of hydraulic pumps and appropriate automatic controls for this, which are connected to the power take-off point of the vehicle are. Similar automatic controls and gears or gearwheel connections can be used to control the relative speeds or -speeds of the various conveyors and the like be provided, so that the entire Automated operation of the bitupen concrete manufacturing device can be.

After detailed description of the preferred design features of the invention are the most significant in the following Invention keys to facilitate understanding the invention briefly summarized. Vie mentions relates the invention on a self-contained mixing device that is mounted on an elongated chassis, for example one. Loadvracienaufbau, is arranged. , on the

409813/0425 BATH ORIGINAL

2345212

The chassis and frame are separate storage chambers for the separate storage of the fillers and the liquid bitumen arranged. A sponsor is used to Conveying the fillers from the various assigned storage boxes in a forward direction to the front end of the chassis and from here in the upward direction into a heating and drying device for heating and drying of the fillers, which is located above the storage chambers and practically over the entire length of the company. This heating and drying device v / eis an agitating or circulating device in the form of blades or ribs, which are heated in it Convey fillers from the front of the frame to its rear end where the heated fillers into a discharge device provided at the rear end of the frame be carried out. The heated fillers then fall down into a mixing device which the liquid bitumen is also fed in, the proportions of which are introduced into the mixing device Components for the production of bitumen concrete are carefully controlled and measured. In the preferred embodiment According to the invention, this bitumen concrete is then made by means of a separate but associated device distributed on the underlying road surface and applied to it, this device initially the under preheats your existing road surface, then the bitumen concrete distributed in order to then press it down or smooth it out and then compress it. The whole, prominent The device described is self-propelled and can easily be moved to the point at which repair work are to be made and the device can be easily operated with a minimum of personnel can be operated, thereby eliminating many of the difficulties inherent in the methods previously used.

In summary, the invention thus provides a bitumen--

WHEEL OBlQlNAL 409813/042 $

234621?

Concrete mixing and application device created that is completely self-contained and self-propelled, so that the bitumen concrete on the job can be mixed and applied. The device has an elongated frame or chassis, For example, a truck chassis on which separate storage chambers to hold fillers, such as sand, stone, gravel and the like, as well as liquid bitumen such as asphalt, tar or the like., Provided A conveying device is provided below the storage chamber for the fillers. which these fillers from the storage chambers via a metering device into a heating and drying device promotes, in which the fillers are heated, dried and circulated. The dry ones Fillers as well as the liquid bitumen, which has been preheated in a similar way, are placed in one on the chassis arranged discharge device or hopper arrangement discharged on which the bitumen concrete is formed will. This bitumen concrete is usually called macadam, black with the formation of a

or asphalt designated road surface by means of an application device on an underlying road surface applied, and this applicator has in the preferred embodiment of the invention a heating chamber, several order screw conveyors, a vibrator and a compaction roller. The device according to the invention is essentially a mobile? itune concrete production plant, the aim '' ipchen and application of the bituminous concrete directly can be moved to a construction site.

409813/0425

BAD OBIQINAt

Claims (25)

Claims 1. Self-contained bituminous concrete mixing device mounted on a chassis, characterized by a storage device for the fillers, a second storage device for liquid bitumen, a metering device for metering and discharging the fillers from the first storage device in predetermined proportions and proportions, a device for Heating the removed fillers, a second metering device in order to meter a predetermined amount of the liquid bitumen from the second storage device, and a device for mixing the metered P constituents to form bitumen concrete. 2. Apparatus according to claim 1, characterized in that an application device for applying and compressing the bitumen concrete is provided on a road surface. 3. Apparatus according to claim 1, characterized in that the first storage device is divided into several chambers is divided for separate storage of a number of different fillers. 4. Apparatus according to claim 3, wherein the fillers are present in coarse and fine-particle form, characterized in that that a heating device is provided to the bitumen in the second storage device to keep elevated temperature. 4Q9S13 / Q425 BATH ORIGINAL 5. Apparatus according to claim 3, characterized in that the device for heating the removed fillers has a heating and drying chamber, in many ways the fillers are introduced through the first metering device. 6. Apparatus according to claim 5, characterized in that the heating chamber eLne forced air heating device "blows oak hot air over the fillers in the heating chamber. 7. Apparatus according to claim 6, characterized in that a device in the heating and drying chamber for circulating and conveying the fillers is provided. 8. Apparatus according to claim 7, characterized in that the heating and drying chamber over the first Storage device forming chambers arranged ■ is that the first metering device is a below dan First conveying device arranged in various chambers for conveying the fillers from the Chambers via Zumeß-Schiefoer to a discharge point at one end of the device and a second, in essential vertically arranged conveying device for conveying the metered fillers in front of ^ discharge point up into the heating and drying chamber has that the Uiavälzeinrichtung provided in the heating and drying chamber opposite the fillers to the conveying direction of the first conveying device to a discharge point at the other end conveying direction and that the mixing device is arranged at this other end of the device. 9. Self-contained bituminous concrete mixing device 409813/0425 BATH ORIGINAL in particular according to one of the preceding claims, characterized by an elongated vehicle frame or a chassis, on these arranged storage chambers for separate storage of fillers and liquid bitumen, a heating device for heating and drying the fillers, which is arranged over the storage chambers practically over the entire length of the frame, means provided at the rear end of the frame for mixing the fillers and the liquid Bitumen, a conveyor for conveying the fillers from the storage chambers in a forward direction towards the front end of the frame and upwards from the front end of the frame into the heater, the latter being provided with circulation devices for the fillers heated in it from the front end to the rear end of the frame, and one at the rear end of the frame Discharge device arranged above the mixing device for discharging the heated fillers in the downward direction into the mixing device in which the bitumen concrete is formed. 10. The device according to claim 9, characterized in that that the heating device is an elongated, hollow drum with one arranged at its rear end Burner and means for rotating the drum to produce a circulation has the fillers contained in it and that the drum is inclined from the front to the rear, so that the fillers contained in the drum can be moved from its front end to its rear end. 11. The device according to claim 1o, characterized in that the storage chambers have several separate chambers for the separate inclusion of fillers, which are practically across the Geeamtlänoe of the frame 409813/0425 BAD ORiQSNAL 2345212 on both sides un; l practically immediately below the hollow doorway forming the heating device are arranged that the conveyor is an elongated, immediately below, the separate Horizontal strand arranged in chambers for conveying the fillers contained in the chambers towards the front end of the chassis or frame and that the. horizontal conveyor strand a controllable ^ chiehereinrichtum for dimensioning the extracted from the separate "learners Is assigned filler quantities. 12. The device according to claim 1o, characterized in that that the burner, which the lie heating device forming hollow drum is assigned, a forced air burner is, which a hot air stream through the drum from hers, back to hers? "front Let the end flow over the fillers in the drum. 13. Vorrichteng according to claim 12, characterized in that that air ducts are in front of ^ .- ivr-.jn, -Zi <± eir.e connection between the fore ·. ¹ ; - ^J e c'e: λζ ...'.-- ~~: ': ": * - !. and - * <?:; Individual? Peicherka:". \ Nern zur ^Λ ufr ::;. -, .- »to produce fillers, u- a ^ Λί t ~ tr_r- -ui l ^ r ~ ^T \ ror - el in the storage cans to produce, - / oiurc'i üio in the storage chambers contained fillers veitor dried v / ground and the dust is deposited in the storage chambers. 14. Apparatus according to claim ■ 1o, -.l Perform r-? L - c: in? Eichr.et that the "ischvorrichturg 2irv? R '" illtrichtc-r z'cr ' ufnahr ^ e c.er from the T erv.'är! uten fillers discharged from the carrying facility, an "icing facility" located under the filling funnel, a: A098 1 3/0; 2δ to control the. ". close the from de ^ filling funnel in the mixing device applied fillers, a second dispensing device for controlling the Amount of liquid bitumen discharge from the assigned Storage chamber in the mixing device and a device for synchronizing the two Having dispensing devices. 15. Apparatus according to claim 14, characterized in that the ^M ischeinrichtung comprises a screw conveyor. 16. The device according to claim 14, characterized in that that the first dispensing device is arranged on the underside of the hopper, revolving Has conveyor which conveys the fillers contained in it to a discharge point at which Metering slide are provided, the speed of the rotary conveyor, the closing speed of the Slider and the amount of liquid bitura delivered by the second / fourth delivery device are coordinated with one another are. 17. Performing according to claim 16, characterized in that that the synchronizer means to "read" the weight of the fillers contained in the hopper to control the operation of the rotary conveyor and the second dispenser. 18. The apparatus according to claim 11, characterized in that the conveyor device furthermore one through a Bucket elevator has formed vertical section, which the discharged from the horizontal strand Fillers in the upward direction and in the promotes hollow troimel into it. 409813 / 042S BATH ORIGINAL 19. The device according to claim 13, characterized in that an additional fan arranged in the air ducts is provided, which the air flow in the storage chambers that store the fillers. 20. Mobile device for the application of ditunenbeton on an underlying road surface, in particular according to one of the preceding claims, characterized by an Ileizkammeinrichtung arranged on its front side for heating the underlying road surface, a transverse conveyor arranged behind the heating chamber for taking up the bitumen concrete and distributing it evenly over the heated one Road surface, a vibrating device arranged behind the conveyor device for spreading and tamping the applied bitumen concrete u "one arranged at the rear end of the device ^ e Compaction device for compacting or rolling in the expanded bituminous concrete. 21. The device according to claim 2o, characterized in that a device for heating the vibrating device is provided. 22. The device according to claim 21, characterized in that a heating channel from the ileizkamreinrichtung is provided for the shaking device. 23. The device according to claim 2o, characterized in that the transverse conveyor means two elongated, Has snails arranged one above the other, one of which has the Bitunenbston in TVusw'irtsrichtung to both strings of the device and the other conveys the bitumen concrete inwards to the center of the device. 409813/0425 BATH ORIGINAL 24. The device according to claim 23, characterized in that an attachment device for connecting the device to a motor vehicle is provided on its front side. 25. The device according to claim 24, characterized in that that the direction of merit is one V7alze aufv.'eist, "/ eiche dis device on the Road surface tr "at. 409813 / 0A2S BATHROOM OFlIQiNAL e e rs e