RU2054999C1 - Concrete-mixing plant - Google Patents

Abstract

FIELD: building engineering. SUBSTANCE: plant has storehouse of concrete components with bunkers-accumulators and metering device made in single block with traveling dipper in which adjustable partitions are mounted. They form sectors of changed dipper volumes of concrete component supply which are regulated by shields. Holes of discharging windows of bunkers-accumulators are equipped with recovery device having prop interacting with dipper. Component mix from dipper goes to mixer and from it to bunker of ready-made mixture. EFFECT: enhanced efficiency. 2 cl, 8 dwg

Description

 The invention relates to the preparation of building mixtures, namely to concrete mixing equipment with the dosage of ingredients, and can be used in devices for preparing concrete mix directly at the sector aggregate warehouses.

Known concrete mixing plants containing a hoist with a sector bucket, a mixer, a block of consumable bins and a metering device [1]
The disadvantages of this installation are the design complexity and high cost, as well as insufficient reliability.

Closest to the invention is a concrete mixing plant containing a warehouse of concrete components with sector storage bins, a metering device, a mixer, as well as a ready-mixed hopper, a component supply device to the mixer, including a bucket, guides and a drive [2]
The disadvantages of this installation are a narrow range of values of the dosed portions of the mixture, the complexity of the design and, therefore, its high cost.

 The objective of the invention is to ensure the dosing of concrete components in the process of their receipt directly from the warehouse to the feed device to the mixer while expanding the range of values of the dosed components, which will eliminate the use of separate expensive dosing equipment.

 As a result of solving this problem, it becomes possible to simplify the design of the installation, reduce its cost and increase reliability.

 The concrete mixing plant contains a warehouse of concrete components with sector storage bins, a metering device, a mixer, a ready-mixed hopper, a component supply device to the mixer, including a bucket, guides and a drive, and the metering device is made in a single unit with a bucket containing removable partitions forming sectors of variable bucket volumes corresponding to each discharge window of one storage hopper, as well as movable, regulating flows of damper components installed at the outlet sty unloading hopper windows, each equipped with a control device return stop cooperating with the bucket during operation.

 The device for supplying components to the mixer can be made in the form of a skip hoist, the shutters can be made in the form of vertical plates mounted with the possibility of their extension, and the return device in the form of spring-loaded shutters.

 The combination of the functions of feeding the materials with the bucket and their dosing due to the presence of rearranged partitions in it, as well as the adjustment of the flow direction of the concrete components by the flaps and the installation of the corresponding sections formed by the bucket walls opposite the unloading windows of each of the warehouse sectors, simplifies the design, since there is no need to separately installed dosing equipment.

 Simplification of the design reduces the cost of the installation as a whole. In addition, it becomes possible to adjust the dosage of concrete components in various versions of their ratio.

 In FIG. 1 shows a general installation diagram; in FIG. 2 the same, with the lowest position of the bucket; in FIG. 3 proposed installation, top view; in FIG. 4 embodiment of valves; in FIG. 5, section AA in FIG. 2; in FIG. 6 bucket options; in FIG. 7, view B in FIG. 1, an embodiment of control stops; in FIG. 8 bucket with loading window.

 The installation contains a warehouse 1 of concrete aggregates having separate sections 2 for various components of the concrete mixture with storage bins 3 installed in them. In an embodiment, the storage sections themselves can serve as storage bins.

 On the outer walls 4 of the bins 3, discharge windows 5 are made, in which movable shutters 6 are mounted that regulate the flow of unloaded components through the openings of the windows 5 and are made, for example, in the form of a set of vertically mounted plates with the possibility of their removal (Fig. 4). The plates can each be lifted vertically upward, revealing the corresponding part of the window.

 The lower edges of the outer wall 4 of the hoppers 3, on which the windows 5 are located, are beveled at an angle of inclination of the guides of the elevator 7 and there is a return device on them, made, for example, in the form of spring-loaded shutters 8 mounted at the openings of the windows 5 and provided with control stops 9 included in meshing with the component feed device into the mixer 10.

 The component supply device comprises a multi-sector bucket 11 fixed pivotally-movable at a point 12 on the rails of the elevator 7, for example skip.

 The bucket 11 is connected to the drive 13. At point 14 in its lower part, the bucket is fixed with the possibility of folding.

 The sectors of the bucket are separated by partitions 15, which can be removed and rearranged in the cells 16, thereby changing the volumes of the sectors of the bucket 11. From the side of the storage hopper 3, the bucket 11 can be made with an additional loading window 17, the surface of which is parallel to the surface of the shutter 6 , and gearing mechanisms (not shown) for the stops 9, which can disable one or another section of warehouse 1.

 The stops 9 are mounted in the upper part of the shutters 8 and are made, for example, rotary (Fig. 7).

 As a design option, it is possible to arrange the elevator with the bucket in a horizontal position.

 The mixer 10 is installed next to the skip hoist 7. From the mixer 10, the components enter the hopper 18 of the finished mixture.

 Installation works as follows.

 A transport device (not shown) drives up to sections 2 of warehouse 1, loading them alternately with concrete components.

 The drive 13 is turned on, and the bucket 11 begins to move obliquely down the guides of the skip hoist 7, running into the stops 9 and recessing the spring-loaded shutters 8 down. This opens the openings of the discharge windows 5, and the sectors of the bucket 11 are installed each opposite the window 5 of the corresponding storage hopper 3 sections 2 of warehouse 1.

Materials from sections 2 are poured into the bucket 11, occupying each individual sector. If it is required to exclude one or another component from the composition of the mixture, then the stop 9 corresponding to the section of the warehouse 1 is not activated, for example, by turning it 90 ^° .

 If you need to change the ratio of the components of the mixture, change the volume of the bulk material, rearranging the partitions 15 in the cells 16 of the bucket 11.

 At the same time, the position of the shutters 6 is changed, setting them in such a way that material from a separate storage hopper is poured into a specific sector of the bucket 11 without falling into other sectors. When the bucket 11 is full, the drive 13 is turned on again and the bucket 11 along the guides of the elevator 7 starts to rise obliquely upward. At the same time, the shutter 8 under the influence of the spring also rises. The bucket 11 disengages from the shutter 8 and rises along the guides.

 Having reached the upper point of the elevator-conveyor 7, the bucket 11 overturns, the drive is turned off, and the mixture is poured into the mixer 10, from where it is fed into the hopper 18 of the finished mixture, which is subsequently transported by the vehicle.

 The drive of the conveyor is turned on, the bucket 11 returns to its original position and begins to fall down. The process is repeated.

 The moment of the beginning of a new cycle is set by the operator.

Claims (3)

 1. CONCRETE MIXER, containing a warehouse of concrete components with sector storage bins, hopper gates mounted on them with the possibility of reciprocating movement, a dosing device, a mixer, a finished product hopper, a device for feeding components in a mixer in the form of a bucket, guides and a drive characterized in that the dosing device is made in a single unit with a bucket containing partitions installed with the possibility of their removal and the formation of sections that are different in volume, and sleep -adjoint movable flap, mounted with the possibility of regulating components in Incoming unloading hopper windows, and each shutter device is configured to return the bucket.  2. Installation according to claim 1, characterized in that the device for returning the bucket is made in the form of a stop installed with the possibility of interaction with the bucket.  3. Installation according to claims 1 and 2, characterized in that the hopper closures are spring-loaded.

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