RU2665718C2 - Device for preparation of cement concrete and other mixtures - Google Patents

Abstract

FIELD: construction.SUBSTANCE: device for the preparation of cement concrete and other mixtures. Proposed is an invention that relates to road construction and other types of construction.EFFECT: allows to considerably decrease the number of devices and tools used in construction processes and save metal.1 cl, 1 dwg

Description

The invention relates to road, civil and industrial construction.

A device for pre-mixing materials, mainly road-building, is known, containing dispensing hoppers with dispensers and vibratory trays placed one above the other, made of sections telescopically connected to each other, where each section of the upper vibratory tray is made according to the clothoid, and the edges of the vibratory trays are parallel (ed. No. 715690, class E01C 19/10, publ. 1980).

However, this device does not provide optimal conditions for the preparation of mixtures.

The purpose of the invention is to obtain optimal conditions for the preparation of cement concrete and other mixtures, to reduce the metal consumption of the mixing plant, to exclude some of the dispensers, prefabricated bins for inert materials, drives, reduce energy costs and time for preparing mixtures.

These goals are achieved by the fact that the only hopper for crushed stone, sand, and cement is installed on one weighing platform, on which these materials are hanged and alternately poured onto a collection conveyor, which directs them to the capacity of the concrete mixer, and water from the measuring tank by gravity, through a spray nozzle , is sprayed over all layers of materials transported by a prefabricated conveyor to a concrete mixer. The prefabricated conveyor is made with a reversible drive, which reduces downtime when loading two concrete mixers, and is also equipped with pressure side rollers at the bend of the assembly conveyor. The traditional design of the mixing plant with a mixer and dispensers installed on it for each individual component of concrete or other mixtures is excluded from the technology of their preparation, since the method of mixing these materials in a concrete mixer, during their delivery to the unloading place, allows to obtain a similar quality.

Figure 1 shows a device for the preparation of cement concrete and other mixtures. Silos 1 for sand, gravel, cement and other materials are mounted on a common weighing platform 2, which sequentially hangs these materials and they are fed to the collection conveyor 3. The conveyor belt is clamped at the break points of its frame by side rollers 4. The conveyor 3 feeds alternately suspended materials in the capacity of the mixer truck 5, which simultaneously injects water coming from the measured sectional water tank 6, the sections of which are also designed for additives that the technology requires. Cement is fed into the hopper from a silo 7 or another type of container for storage.

Claims (2)

1. A device for the preparation of cement concrete and other mixtures, containing one collecting hopper for crushed stone, sand, cement and a collecting conveyor, containers for cement and water with their feeding devices at the destination, characterized in that in order to reduce energy consumption, the time of preparation of mixtures and loading of concrete mixers, as well as exceptions from the technology for preparing these mixtures of individual dosing and storage devices for crushed stone, sand, cement, water, a mixer and metal structures for their installation, phased dosing ska, gravel, cement and other materials by one metering device mounted below the hopper. 2. The device according to p. 1, characterized in that the collection conveyor is equipped with a reversible drive and allows you to load two concrete mixers, and for clamping the conveyor belt, in the place of the break of the conveyor frame, pressure rollers are mounted on its frame on the sides of the conveyor belt.

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