RU2464165C2 - Mobile concrete-mixing plant - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: invention relates to construction equipment. Particularly, it relates to modular concrete-mixing plants intended for making and feeding all types of concretes and construction mortars directly at construction site in completely automated process.

EFFECT: preparation of heavy concrete, architectural decorative concrete and foamed concrete.

5 cl, 2 dwg

Description

The invention relates to construction equipment, in particular to modular concrete plants used for the preparation and supply of all types of concrete and mortars directly at a construction site with full automation of all technological processes.

The mobile concrete station Mobil Cobra C100 of the Finnish company Tecwill is known (http://www.tecwill.ru/eng/cfmldocs/index.cfm?ID=1263), (Journal of Concrete Technologies No. 11, 2008, p. 42 ) A concrete station is a structure assembled from separate modules and blocks that make up a single production complex. Concrete station consists of the following blocks:

- the unit of the receiving hopper is designed to receive inert materials from vehicles;

- the storage unit of inert material bins is designed for separate storage of inert materials (for example, gravel, coarse or fine sand, ground sand, etc.). Structurally, it consists of individual bunkers of rectangular cross section, equipped with automatically opening lids. The bunkers are filled with inert materials from the receiving hopper using a separate loading technique;

- the block for the selection and supply of materials from the block of hoppers of inert materials is intended for the selection and supply of individual materials to the block of supply of inert materials to the dosage block. Structurally, it consists of funnels, which are the reciprocal part of the hoppers of rectangular cross-section, located in the storage unit of the hoppers of inert materials and joined with them. Funnel outputs are equipped with automatically controlled gates. A belt conveyor is located under the funnels. When opening this or that gate from the hopper, a portion of the drive is poured onto the conveyor;

- the inert material supply unit to the dosing unit is designed to supply inert materials from the inert material selection and supply unit to the dosing unit. Structurally, it is a closed elevator. At the same time, the elevator consists of two parts connected during installation;

- the dosing unit is intended for dosing inert materials and feeding them to the mixer unit. Structurally, the dosing unit consists of two bins (for inert materials and cement) equipped with control and management elements;

- the mixing compartment unit is intended for the direct preparation of concrete. The unit is equipped with a cyclic mixer, devices and elements of control and automation. An unloading pipe is made in the floor of the block, through which concrete is supplied to the concrete truck;

- the control room has a system for manual or automated control of a concrete station. The system is equipped with a set of software modules that allow you to control the process of concrete preparation, from the recipe ratio of the components to product quality control;

- The technical room is intended for preparatory and repair work;

- the cement block is separated from the rest of the blocks, intended for storage of cement and includes a silo for storing cement and a screw conveyor for feeding it from the silo into the cement hopper of the dosing unit.

The disadvantages of the concrete station Mobil Cobra C100 are that when assembled, it occupies a large area, the overall height is more than 10 meters. It requires a lot of time for assembly and disassembly. The station is transported from one facility to another on six container ships. Concrete delivery to the construction site is carried out by concrete trucks or other vehicles. The station is intended for the preparation of only concrete, i.e. it does not prepare architectural and decorative concrete, mortars and foam concrete, necessary for the construction site.

The technical task of the invention is to reduce the cost of a concrete plant, expand its functionality, reduce the time for installation and dismantling, reduce transportation costs for transportation, reduce overall dimensions.

The technical problem is solved by optimizing the spatial arrangement of individual plant units and adding additional devices and mechanisms to the plant structure.

A mobile concrete plant (MBZ) includes two main modules: a technological module and an inert materials module.

In the technological module (lower) are mounted: a receiving hopper with a self-lifting bucket, an elevator, hopper funnels, batchers and mixers. The module also includes: a concrete pump, an autonomous power station, a rod mill for grinding sand, a mixer for the preparation of architectural and decorative concrete and a mixer for the preparation of foam concrete.

The inert materials module (top) contains bunkers of coarse and fine gravel, coarse and fine sand, ground sand and cement. A belt conveyor with a double-sided unloader is installed above the hoppers. The purpose of the conveyor belt is the targeted delivery of each inert material to its hopper. The inert materials module is mounted on top of the process module. In this case, the elevator and silos are divided into two joined parts. The rectangular parts of the silos and the upper part of the elevator are located in the inert materials module, and their counterparts (hopper funnels and the lower part of the elevator) are located in the technological module. The lower part of the elevator is equipped with a screw for cleaning the inert material supply unit.

The device and layout of the mobile concrete plant is shown in the drawings.

The figure 1 shows the assembly drawing of the plant.

The figure 2 shows a cross section of the assembly drawing.

A mobile concrete plant includes a technological module 1 and an inert materials module 2 mounted on top of each other.

The technological module contains a receiving hopper 3, equipped with a self-lifting bucket 4 of inert materials, an elevator 5, consisting of two parts, articulated at the connection level of modules 1 and 2, a concrete mixer 6 with a batcher 7, a mixer 8 for preparing architectural and decorative concrete with a batcher 9, a foam concrete mixer 10 with a batcher 11. An additional concrete pump 12, an autonomous power station 13 and a rod mill 14 for grinding sand and a compressor 15 are installed in the module. The batchers communicate with funnels of inert material bins.

The inert materials module contains rectangular parts of the bins of coarse and fine gravel 16 and 17, bins of coarse and fine sand 18 and 19, bins of ground sand 20 and cement 21, each articulated with its funnels 22 located in the technological module. Above the bunkers (except for the cement bunker) a belt conveyor 23 with a two-sided unloader is installed.

The elevator 5 is equipped with a double-sided auger 24. As the elevator 5 develops inert materials around itself, the receiving bucket 4 with the help of a hydraulic actuator rises and feeds the receiving hopper of the elevator with its contents. Upon completion of the lifting of the bucket, the screw 24 is turned on and completely cleans the bottom of the receiving hopper from the remnants of inert materials. The cement hopper 21 is filled with a cement truck. The mixer 8 for the preparation of architectural and decorative concrete is also equipped with dispensers for plastidizers and dyes (not shown). The hopper 20 is filled with ground sand, obtained by grinding in the rod mill 14. At the same time, fine sand is fed from the hopper 19 into the rod mill (communications not shown).

Mobile concrete plant operates as follows.

Alternately, vehicles fill the bucket 4 with inert materials. After each loading, the bucket's lifting mechanism is activated and its contents are gradually unloaded into the receiving hopper 3. The remaining material is cleaned with a screw 24. From the receiving hopper, the inert materials are lifted by the elevator 5 into the inert module 2 and poured onto the belt conveyor 23. The belt conveyor feeds the inert material into one or another hopper, for example, in a hopper 18 of coarse sand. The remaining bunkers are filled in the same way (each bunker has its own material). After that, depending on what we want to cook, mixers 6, 8 or 10 are activated. The finished mixture is pumped to the destination using a concrete pump. For example, to prepare heavy concrete from bins 16, 18, and 21, coarse gravel, coarse sand, cement, and water are fed into batcher 7. From the batcher, the materials enter the concrete mixer 6. For the preparation of architectural and decorative concrete, batcher 18, 17 and 21 is fed with coarse sand, fine gravel, cement and water from the bins 18. For the preparation of foam concrete in the dispenser 11 is fed from the bins 20 and 21 ground sand, cement, water and a foaming agent from a separate dispenser. All three mixers can work alternately or simultaneously.

Claims (5)

1. Mobile concrete plant, including a receiving hopper, an inert material elevator, inert material and cement dispensers, a concrete mixer with a concrete pump, rubble, coarse sand, cement silos, a conveyor belt, characterized in that it contains an inert material module and a technological module, receiving hopper, inert materials elevator, inert materials and cement dispensers and concrete mixer are located in the technological module, and rubble, sand, cement hoppers and belt conveyor are placed in the module tnyh materials. 2. The mobile concrete plant according to claim 1, characterized in that mixers for the preparation of architectural and decorative concrete and foam concrete, as well as a core mill, are additionally installed in the technological module. 3. A mobile concrete plant according to any one of claims 1 and 2, characterized in that in the inert materials module there are additionally bunkers of fine crushed stone, fine sand and ground sand, the ground sand bunker being connected through a rod mill to the fine sand bunker. 4. A mobile concrete plant according to any one of claims 1 and 2, characterized in that the concrete mixer dispenser is connected to the bunkers of coarse gravel and coarse sand, the mixer-mixer of architectural and decorative concrete is connected to the bins of coarse sand and small gravel, the foam concrete batch mixer dispenser is connected with ground sand and cement silos, and the cement silo is connected to all dispensers. 5. The mobile concrete plant according to claim 1, characterized in that the elevator consists of two articulated parts, is located in the receiving hopper and is equipped with an auger, the conveyor belt is installed above the hoppers and is equipped with a double-sided unloader, and the receiving hopper is equipped with a self-lifting bucket.

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